[FFmpeg-cvslog] Merge commit '567d6d5f9d1400f00445183b3477391f58979aa3'

Derek Buitenhuis git at videolan.org
Mon Apr 11 17:46:52 CEST 2016


ffmpeg | branch: master | Derek Buitenhuis <derek.buitenhuis at gmail.com> | Mon Apr 11 16:46:22 2016 +0100| [48fb5294d03f1d25ec8ba370a0cb4258fc21e88e] | committer: Derek Buitenhuis

Merge commit '567d6d5f9d1400f00445183b3477391f58979aa3'

* commit '567d6d5f9d1400f00445183b3477391f58979aa3':
  avprobe: add local per-stream state

Merged-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=48fb5294d03f1d25ec8ba370a0cb4258fc21e88e
---

 ffprobe.c |   19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/ffprobe.c b/ffprobe.c
index fca60b8..4481621 100644
--- a/ffprobe.c
+++ b/ffprobe.c
@@ -49,8 +49,15 @@
 #include "libpostproc/postprocess.h"
 #include "cmdutils.h"
 
+typedef struct InputStream {
+    AVStream *st;
+} InputStream;
+
 typedef struct InputFile {
     AVFormatContext *fmt_ctx;
+
+    InputStream *streams;
+    int       nb_streams;
 } InputFile;
 
 const char program_name[] = "ffprobe";
@@ -2541,11 +2548,20 @@ static int open_input_file(InputFile *ifile, const char *filename)
 
     av_dump_format(fmt_ctx, 0, filename, 0);
 
+    ifile->streams = av_mallocz_array(fmt_ctx->nb_streams,
+                                      sizeof(*ifile->streams));
+    if (!ifile->streams)
+        exit(1);
+    ifile->nb_streams = fmt_ctx->nb_streams;
+
     /* bind a decoder to each input stream */
     for (i = 0; i < fmt_ctx->nb_streams; i++) {
+        InputStream *ist = &ifile->streams[i];
         AVStream *stream = fmt_ctx->streams[i];
         AVCodec *codec;
 
+        ist->st = stream;
+
         if (stream->codec->codec_id == AV_CODEC_ID_PROBE) {
             av_log(NULL, AV_LOG_WARNING,
                    "Failed to probe codec for input stream %d\n",
@@ -2583,6 +2599,9 @@ static void close_input_file(InputFile *ifile)
         if (fmt_ctx->streams[i]->codec->codec_id != AV_CODEC_ID_NONE)
             avcodec_close(fmt_ctx->streams[i]->codec);
 
+    av_freep(&ifile->streams);
+    ifile->nb_streams = 0;
+
     avformat_close_input(&ifile->fmt_ctx);
 }
 


======================================================================

diff --cc ffprobe.c
index fca60b8,0000000..4481621
mode 100644,000000..100644
--- a/ffprobe.c
+++ b/ffprobe.c
@@@ -1,3303 -1,0 +1,3322 @@@
 +/*
 + * Copyright (c) 2007-2010 Stefano Sabatini
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +/**
 + * @file
 + * simple media prober based on the FFmpeg libraries
 + */
 +
 +#include "config.h"
 +#include "libavutil/ffversion.h"
 +
 +#include <string.h>
 +
 +#include "libavformat/avformat.h"
 +#include "libavcodec/avcodec.h"
 +#include "libavutil/avassert.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/bprint.h"
 +#include "libavutil/display.h"
 +#include "libavutil/hash.h"
 +#include "libavutil/opt.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/libm.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/timecode.h"
 +#include "libavutil/timestamp.h"
 +#include "libavdevice/avdevice.h"
 +#include "libswscale/swscale.h"
 +#include "libswresample/swresample.h"
 +#include "libpostproc/postprocess.h"
 +#include "cmdutils.h"
 +
++typedef struct InputStream {
++    AVStream *st;
++} InputStream;
++
 +typedef struct InputFile {
 +    AVFormatContext *fmt_ctx;
++
++    InputStream *streams;
++    int       nb_streams;
 +} InputFile;
 +
 +const char program_name[] = "ffprobe";
 +const int program_birth_year = 2007;
 +
 +static int do_bitexact = 0;
 +static int do_count_frames = 0;
 +static int do_count_packets = 0;
 +static int do_read_frames  = 0;
 +static int do_read_packets = 0;
 +static int do_show_chapters = 0;
 +static int do_show_error   = 0;
 +static int do_show_format  = 0;
 +static int do_show_frames  = 0;
 +static int do_show_packets = 0;
 +static int do_show_programs = 0;
 +static int do_show_streams = 0;
 +static int do_show_stream_disposition = 0;
 +static int do_show_data    = 0;
 +static int do_show_program_version  = 0;
 +static int do_show_library_versions = 0;
 +static int do_show_pixel_formats = 0;
 +static int do_show_pixel_format_flags = 0;
 +static int do_show_pixel_format_components = 0;
 +
 +static int do_show_chapter_tags = 0;
 +static int do_show_format_tags = 0;
 +static int do_show_frame_tags = 0;
 +static int do_show_program_tags = 0;
 +static int do_show_stream_tags = 0;
 +static int do_show_packet_tags = 0;
 +
 +static int show_value_unit              = 0;
 +static int use_value_prefix             = 0;
 +static int use_byte_value_binary_prefix = 0;
 +static int use_value_sexagesimal_format = 0;
 +static int show_private_data            = 1;
 +
 +static char *print_format;
 +static char *stream_specifier;
 +static char *show_data_hash;
 +
 +typedef struct ReadInterval {
 +    int id;             ///< identifier
 +    int64_t start, end; ///< start, end in second/AV_TIME_BASE units
 +    int has_start, has_end;
 +    int start_is_offset, end_is_offset;
 +    int duration_frames;
 +} ReadInterval;
 +
 +static ReadInterval *read_intervals;
 +static int read_intervals_nb = 0;
 +
 +/* section structure definition */
 +
 +#define SECTION_MAX_NB_CHILDREN 10
 +
 +struct section {
 +    int id;             ///< unique id identifying a section
 +    const char *name;
 +
 +#define SECTION_FLAG_IS_WRAPPER      1 ///< the section only contains other sections, but has no data at its own level
 +#define SECTION_FLAG_IS_ARRAY        2 ///< the section contains an array of elements of the same type
 +#define SECTION_FLAG_HAS_VARIABLE_FIELDS 4 ///< the section may contain a variable number of fields with variable keys.
 +                                           ///  For these sections the element_name field is mandatory.
 +    int flags;
 +    int children_ids[SECTION_MAX_NB_CHILDREN+1]; ///< list of children section IDS, terminated by -1
 +    const char *element_name; ///< name of the contained element, if provided
 +    const char *unique_name;  ///< unique section name, in case the name is ambiguous
 +    AVDictionary *entries_to_show;
 +    int show_all_entries;
 +};
 +
 +typedef enum {
 +    SECTION_ID_NONE = -1,
 +    SECTION_ID_CHAPTER,
 +    SECTION_ID_CHAPTER_TAGS,
 +    SECTION_ID_CHAPTERS,
 +    SECTION_ID_ERROR,
 +    SECTION_ID_FORMAT,
 +    SECTION_ID_FORMAT_TAGS,
 +    SECTION_ID_FRAME,
 +    SECTION_ID_FRAMES,
 +    SECTION_ID_FRAME_TAGS,
 +    SECTION_ID_FRAME_SIDE_DATA_LIST,
 +    SECTION_ID_FRAME_SIDE_DATA,
 +    SECTION_ID_LIBRARY_VERSION,
 +    SECTION_ID_LIBRARY_VERSIONS,
 +    SECTION_ID_PACKET,
 +    SECTION_ID_PACKET_TAGS,
 +    SECTION_ID_PACKETS,
 +    SECTION_ID_PACKETS_AND_FRAMES,
 +    SECTION_ID_PACKET_SIDE_DATA_LIST,
 +    SECTION_ID_PACKET_SIDE_DATA,
 +    SECTION_ID_PIXEL_FORMAT,
 +    SECTION_ID_PIXEL_FORMAT_FLAGS,
 +    SECTION_ID_PIXEL_FORMAT_COMPONENT,
 +    SECTION_ID_PIXEL_FORMAT_COMPONENTS,
 +    SECTION_ID_PIXEL_FORMATS,
 +    SECTION_ID_PROGRAM_STREAM_DISPOSITION,
 +    SECTION_ID_PROGRAM_STREAM_TAGS,
 +    SECTION_ID_PROGRAM,
 +    SECTION_ID_PROGRAM_STREAMS,
 +    SECTION_ID_PROGRAM_STREAM,
 +    SECTION_ID_PROGRAM_TAGS,
 +    SECTION_ID_PROGRAM_VERSION,
 +    SECTION_ID_PROGRAMS,
 +    SECTION_ID_ROOT,
 +    SECTION_ID_STREAM,
 +    SECTION_ID_STREAM_DISPOSITION,
 +    SECTION_ID_STREAMS,
 +    SECTION_ID_STREAM_TAGS,
 +    SECTION_ID_STREAM_SIDE_DATA_LIST,
 +    SECTION_ID_STREAM_SIDE_DATA,
 +    SECTION_ID_SUBTITLE,
 +} SectionID;
 +
 +static struct section sections[] = {
 +    [SECTION_ID_CHAPTERS] =           { SECTION_ID_CHAPTERS, "chapters", SECTION_FLAG_IS_ARRAY, { SECTION_ID_CHAPTER, -1 } },
 +    [SECTION_ID_CHAPTER] =            { SECTION_ID_CHAPTER, "chapter", 0, { SECTION_ID_CHAPTER_TAGS, -1 } },
 +    [SECTION_ID_CHAPTER_TAGS] =       { SECTION_ID_CHAPTER_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "chapter_tags" },
 +    [SECTION_ID_ERROR] =              { SECTION_ID_ERROR, "error", 0, { -1 } },
 +    [SECTION_ID_FORMAT] =             { SECTION_ID_FORMAT, "format", 0, { SECTION_ID_FORMAT_TAGS, -1 } },
 +    [SECTION_ID_FORMAT_TAGS] =        { SECTION_ID_FORMAT_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "format_tags" },
 +    [SECTION_ID_FRAMES] =             { SECTION_ID_FRAMES, "frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME, SECTION_ID_SUBTITLE, -1 } },
 +    [SECTION_ID_FRAME] =              { SECTION_ID_FRAME, "frame", 0, { SECTION_ID_FRAME_TAGS, SECTION_ID_FRAME_SIDE_DATA_LIST, -1 } },
 +    [SECTION_ID_FRAME_TAGS] =         { SECTION_ID_FRAME_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "frame_tags" },
 +    [SECTION_ID_FRAME_SIDE_DATA_LIST] ={ SECTION_ID_FRAME_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_SIDE_DATA, -1 } },
 +    [SECTION_ID_FRAME_SIDE_DATA] =     { SECTION_ID_FRAME_SIDE_DATA, "side_data", 0, { -1 } },
 +    [SECTION_ID_LIBRARY_VERSIONS] =   { SECTION_ID_LIBRARY_VERSIONS, "library_versions", SECTION_FLAG_IS_ARRAY, { SECTION_ID_LIBRARY_VERSION, -1 } },
 +    [SECTION_ID_LIBRARY_VERSION] =    { SECTION_ID_LIBRARY_VERSION, "library_version", 0, { -1 } },
 +    [SECTION_ID_PACKETS] =            { SECTION_ID_PACKETS, "packets", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
 +    [SECTION_ID_PACKETS_AND_FRAMES] = { SECTION_ID_PACKETS_AND_FRAMES, "packets_and_frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
 +    [SECTION_ID_PACKET] =             { SECTION_ID_PACKET, "packet", 0, { SECTION_ID_PACKET_TAGS, SECTION_ID_PACKET_SIDE_DATA_LIST, -1 } },
 +    [SECTION_ID_PACKET_TAGS] =        { SECTION_ID_PACKET_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "packet_tags" },
 +    [SECTION_ID_PACKET_SIDE_DATA_LIST] ={ SECTION_ID_PACKET_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET_SIDE_DATA, -1 } },
 +    [SECTION_ID_PACKET_SIDE_DATA] =     { SECTION_ID_PACKET_SIDE_DATA, "side_data", 0, { -1 } },
 +    [SECTION_ID_PIXEL_FORMATS] =      { SECTION_ID_PIXEL_FORMATS, "pixel_formats", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PIXEL_FORMAT, -1 } },
 +    [SECTION_ID_PIXEL_FORMAT] =       { SECTION_ID_PIXEL_FORMAT, "pixel_format", 0, { SECTION_ID_PIXEL_FORMAT_FLAGS, SECTION_ID_PIXEL_FORMAT_COMPONENTS, -1 } },
 +    [SECTION_ID_PIXEL_FORMAT_FLAGS] = { SECTION_ID_PIXEL_FORMAT_FLAGS, "flags", 0, { -1 }, .unique_name = "pixel_format_flags" },
 +    [SECTION_ID_PIXEL_FORMAT_COMPONENTS] = { SECTION_ID_PIXEL_FORMAT_COMPONENTS, "components", SECTION_FLAG_IS_ARRAY, {SECTION_ID_PIXEL_FORMAT_COMPONENT, -1 }, .unique_name = "pixel_format_components" },
 +    [SECTION_ID_PIXEL_FORMAT_COMPONENT]  = { SECTION_ID_PIXEL_FORMAT_COMPONENT, "component", 0, { -1 } },
 +    [SECTION_ID_PROGRAM_STREAM_DISPOSITION] = { SECTION_ID_PROGRAM_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "program_stream_disposition" },
 +    [SECTION_ID_PROGRAM_STREAM_TAGS] =        { SECTION_ID_PROGRAM_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_stream_tags" },
 +    [SECTION_ID_PROGRAM] =                    { SECTION_ID_PROGRAM, "program", 0, { SECTION_ID_PROGRAM_TAGS, SECTION_ID_PROGRAM_STREAMS, -1 } },
 +    [SECTION_ID_PROGRAM_STREAMS] =            { SECTION_ID_PROGRAM_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM_STREAM, -1 }, .unique_name = "program_streams" },
 +    [SECTION_ID_PROGRAM_STREAM] =             { SECTION_ID_PROGRAM_STREAM, "stream", 0, { SECTION_ID_PROGRAM_STREAM_DISPOSITION, SECTION_ID_PROGRAM_STREAM_TAGS, -1 }, .unique_name = "program_stream" },
 +    [SECTION_ID_PROGRAM_TAGS] =               { SECTION_ID_PROGRAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_tags" },
 +    [SECTION_ID_PROGRAM_VERSION] =    { SECTION_ID_PROGRAM_VERSION, "program_version", 0, { -1 } },
 +    [SECTION_ID_PROGRAMS] =                   { SECTION_ID_PROGRAMS, "programs", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM, -1 } },
 +    [SECTION_ID_ROOT] =               { SECTION_ID_ROOT, "root", SECTION_FLAG_IS_WRAPPER,
 +                                        { SECTION_ID_CHAPTERS, SECTION_ID_FORMAT, SECTION_ID_FRAMES, SECTION_ID_PROGRAMS, SECTION_ID_STREAMS,
 +                                          SECTION_ID_PACKETS, SECTION_ID_ERROR, SECTION_ID_PROGRAM_VERSION, SECTION_ID_LIBRARY_VERSIONS,
 +                                          SECTION_ID_PIXEL_FORMATS, -1} },
 +    [SECTION_ID_STREAMS] =            { SECTION_ID_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM, -1 } },
 +    [SECTION_ID_STREAM] =             { SECTION_ID_STREAM, "stream", 0, { SECTION_ID_STREAM_DISPOSITION, SECTION_ID_STREAM_TAGS, SECTION_ID_STREAM_SIDE_DATA_LIST, -1 } },
 +    [SECTION_ID_STREAM_DISPOSITION] = { SECTION_ID_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "stream_disposition" },
 +    [SECTION_ID_STREAM_TAGS] =        { SECTION_ID_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "stream_tags" },
 +    [SECTION_ID_STREAM_SIDE_DATA_LIST] ={ SECTION_ID_STREAM_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM_SIDE_DATA, -1 } },
 +    [SECTION_ID_STREAM_SIDE_DATA] =     { SECTION_ID_STREAM_SIDE_DATA, "side_data", 0, { -1 } },
 +    [SECTION_ID_SUBTITLE] =           { SECTION_ID_SUBTITLE, "subtitle", 0, { -1 } },
 +};
 +
 +static const OptionDef *options;
 +
 +/* FFprobe context */
 +static const char *input_filename;
 +static AVInputFormat *iformat = NULL;
 +
 +static struct AVHashContext *hash;
 +
 +static const struct {
 +    double bin_val;
 +    double dec_val;
 +    const char *bin_str;
 +    const char *dec_str;
 +} si_prefixes[] = {
 +    { 1.0, 1.0, "", "" },
 +    { 1.024e3, 1e3, "Ki", "K" },
 +    { 1.048576e6, 1e6, "Mi", "M" },
 +    { 1.073741824e9, 1e9, "Gi", "G" },
 +    { 1.099511627776e12, 1e12, "Ti", "T" },
 +    { 1.125899906842624e15, 1e15, "Pi", "P" },
 +};
 +
 +static const char unit_second_str[]         = "s"    ;
 +static const char unit_hertz_str[]          = "Hz"   ;
 +static const char unit_byte_str[]           = "byte" ;
 +static const char unit_bit_per_second_str[] = "bit/s";
 +
 +static int nb_streams;
 +static uint64_t *nb_streams_packets;
 +static uint64_t *nb_streams_frames;
 +static int *selected_streams;
 +
 +static void ffprobe_cleanup(int ret)
 +{
 +    int i;
 +    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
 +        av_dict_free(&(sections[i].entries_to_show));
 +}
 +
 +struct unit_value {
 +    union { double d; long long int i; } val;
 +    const char *unit;
 +};
 +
 +static char *value_string(char *buf, int buf_size, struct unit_value uv)
 +{
 +    double vald;
 +    long long int vali;
 +    int show_float = 0;
 +
 +    if (uv.unit == unit_second_str) {
 +        vald = uv.val.d;
 +        show_float = 1;
 +    } else {
 +        vald = vali = uv.val.i;
 +    }
 +
 +    if (uv.unit == unit_second_str && use_value_sexagesimal_format) {
 +        double secs;
 +        int hours, mins;
 +        secs  = vald;
 +        mins  = (int)secs / 60;
 +        secs  = secs - mins * 60;
 +        hours = mins / 60;
 +        mins %= 60;
 +        snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
 +    } else {
 +        const char *prefix_string = "";
 +
 +        if (use_value_prefix && vald > 1) {
 +            long long int index;
 +
 +            if (uv.unit == unit_byte_str && use_byte_value_binary_prefix) {
 +                index = (long long int) (log2(vald)) / 10;
 +                index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
 +                vald /= si_prefixes[index].bin_val;
 +                prefix_string = si_prefixes[index].bin_str;
 +            } else {
 +                index = (long long int) (log10(vald)) / 3;
 +                index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
 +                vald /= si_prefixes[index].dec_val;
 +                prefix_string = si_prefixes[index].dec_str;
 +            }
 +            vali = vald;
 +        }
 +
 +        if (show_float || (use_value_prefix && vald != (long long int)vald))
 +            snprintf(buf, buf_size, "%f", vald);
 +        else
 +            snprintf(buf, buf_size, "%lld", vali);
 +        av_strlcatf(buf, buf_size, "%s%s%s", *prefix_string || show_value_unit ? " " : "",
 +                 prefix_string, show_value_unit ? uv.unit : "");
 +    }
 +
 +    return buf;
 +}
 +
 +/* WRITERS API */
 +
 +typedef struct WriterContext WriterContext;
 +
 +#define WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS 1
 +#define WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER 2
 +
 +typedef enum {
 +    WRITER_STRING_VALIDATION_FAIL,
 +    WRITER_STRING_VALIDATION_REPLACE,
 +    WRITER_STRING_VALIDATION_IGNORE,
 +    WRITER_STRING_VALIDATION_NB
 +} StringValidation;
 +
 +typedef struct Writer {
 +    const AVClass *priv_class;      ///< private class of the writer, if any
 +    int priv_size;                  ///< private size for the writer context
 +    const char *name;
 +
 +    int  (*init)  (WriterContext *wctx);
 +    void (*uninit)(WriterContext *wctx);
 +
 +    void (*print_section_header)(WriterContext *wctx);
 +    void (*print_section_footer)(WriterContext *wctx);
 +    void (*print_integer)       (WriterContext *wctx, const char *, long long int);
 +    void (*print_rational)      (WriterContext *wctx, AVRational *q, char *sep);
 +    void (*print_string)        (WriterContext *wctx, const char *, const char *);
 +    int flags;                  ///< a combination or WRITER_FLAG_*
 +} Writer;
 +
 +#define SECTION_MAX_NB_LEVELS 10
 +
 +struct WriterContext {
 +    const AVClass *class;           ///< class of the writer
 +    const Writer *writer;           ///< the Writer of which this is an instance
 +    char *name;                     ///< name of this writer instance
 +    void *priv;                     ///< private data for use by the filter
 +
 +    const struct section *sections; ///< array containing all sections
 +    int nb_sections;                ///< number of sections
 +
 +    int level;                      ///< current level, starting from 0
 +
 +    /** number of the item printed in the given section, starting from 0 */
 +    unsigned int nb_item[SECTION_MAX_NB_LEVELS];
 +
 +    /** section per each level */
 +    const struct section *section[SECTION_MAX_NB_LEVELS];
 +    AVBPrint section_pbuf[SECTION_MAX_NB_LEVELS]; ///< generic print buffer dedicated to each section,
 +                                                  ///  used by various writers
 +
 +    unsigned int nb_section_packet; ///< number of the packet section in case we are in "packets_and_frames" section
 +    unsigned int nb_section_frame;  ///< number of the frame  section in case we are in "packets_and_frames" section
 +    unsigned int nb_section_packet_frame; ///< nb_section_packet or nb_section_frame according if is_packets_and_frames
 +
 +    int string_validation;
 +    char *string_validation_replacement;
 +    unsigned int string_validation_utf8_flags;
 +};
 +
 +static const char *writer_get_name(void *p)
 +{
 +    WriterContext *wctx = p;
 +    return wctx->writer->name;
 +}
 +
 +#define OFFSET(x) offsetof(WriterContext, x)
 +
 +static const AVOption writer_options[] = {
 +    { "string_validation", "set string validation mode",
 +      OFFSET(string_validation), AV_OPT_TYPE_INT, {.i64=WRITER_STRING_VALIDATION_REPLACE}, 0, WRITER_STRING_VALIDATION_NB-1, .unit = "sv" },
 +    { "sv", "set string validation mode",
 +      OFFSET(string_validation), AV_OPT_TYPE_INT, {.i64=WRITER_STRING_VALIDATION_REPLACE}, 0, WRITER_STRING_VALIDATION_NB-1, .unit = "sv" },
 +    { "ignore",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_IGNORE},  .unit = "sv" },
 +    { "replace", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_REPLACE}, .unit = "sv" },
 +    { "fail",    NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_FAIL},    .unit = "sv" },
 +    { "string_validation_replacement", "set string validation replacement string", OFFSET(string_validation_replacement), AV_OPT_TYPE_STRING, {.str=""}},
 +    { "svr", "set string validation replacement string", OFFSET(string_validation_replacement), AV_OPT_TYPE_STRING, {.str="\xEF\xBF\xBD"}},
 +    { NULL }
 +};
 +
 +static void *writer_child_next(void *obj, void *prev)
 +{
 +    WriterContext *ctx = obj;
 +    if (!prev && ctx->writer && ctx->writer->priv_class && ctx->priv)
 +        return ctx->priv;
 +    return NULL;
 +}
 +
 +static const AVClass writer_class = {
 +    .class_name = "Writer",
 +    .item_name  = writer_get_name,
 +    .option     = writer_options,
 +    .version    = LIBAVUTIL_VERSION_INT,
 +    .child_next = writer_child_next,
 +};
 +
 +static void writer_close(WriterContext **wctx)
 +{
 +    int i;
 +
 +    if (!*wctx)
 +        return;
 +
 +    if ((*wctx)->writer->uninit)
 +        (*wctx)->writer->uninit(*wctx);
 +    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
 +        av_bprint_finalize(&(*wctx)->section_pbuf[i], NULL);
 +    if ((*wctx)->writer->priv_class)
 +        av_opt_free((*wctx)->priv);
 +    av_freep(&((*wctx)->priv));
 +    av_opt_free(*wctx);
 +    av_freep(wctx);
 +}
 +
 +static void bprint_bytes(AVBPrint *bp, const uint8_t *ubuf, size_t ubuf_size)
 +{
 +    int i;
 +    av_bprintf(bp, "0X");
 +    for (i = 0; i < ubuf_size; i++)
 +        av_bprintf(bp, "%02X", ubuf[i]);
 +}
 +
 +
 +static int writer_open(WriterContext **wctx, const Writer *writer, const char *args,
 +                       const struct section *sections, int nb_sections)
 +{
 +    int i, ret = 0;
 +
 +    if (!(*wctx = av_mallocz(sizeof(WriterContext)))) {
 +        ret = AVERROR(ENOMEM);
 +        goto fail;
 +    }
 +
 +    if (!((*wctx)->priv = av_mallocz(writer->priv_size))) {
 +        ret = AVERROR(ENOMEM);
 +        goto fail;
 +    }
 +
 +    (*wctx)->class = &writer_class;
 +    (*wctx)->writer = writer;
 +    (*wctx)->level = -1;
 +    (*wctx)->sections = sections;
 +    (*wctx)->nb_sections = nb_sections;
 +
 +    av_opt_set_defaults(*wctx);
 +
 +    if (writer->priv_class) {
 +        void *priv_ctx = (*wctx)->priv;
 +        *((const AVClass **)priv_ctx) = writer->priv_class;
 +        av_opt_set_defaults(priv_ctx);
 +    }
 +
 +    /* convert options to dictionary */
 +    if (args) {
 +        AVDictionary *opts = NULL;
 +        AVDictionaryEntry *opt = NULL;
 +
 +        if ((ret = av_dict_parse_string(&opts, args, "=", ":", 0)) < 0) {
 +            av_log(*wctx, AV_LOG_ERROR, "Failed to parse option string '%s' provided to writer context\n", args);
 +            av_dict_free(&opts);
 +            goto fail;
 +        }
 +
 +        while ((opt = av_dict_get(opts, "", opt, AV_DICT_IGNORE_SUFFIX))) {
 +            if ((ret = av_opt_set(*wctx, opt->key, opt->value, AV_OPT_SEARCH_CHILDREN)) < 0) {
 +                av_log(*wctx, AV_LOG_ERROR, "Failed to set option '%s' with value '%s' provided to writer context\n",
 +                       opt->key, opt->value);
 +                av_dict_free(&opts);
 +                goto fail;
 +            }
 +        }
 +
 +        av_dict_free(&opts);
 +    }
 +
 +    /* validate replace string */
 +    {
 +        const uint8_t *p = (*wctx)->string_validation_replacement;
 +        const uint8_t *endp = p + strlen(p);
 +        while (*p) {
 +            const uint8_t *p0 = p;
 +            int32_t code;
 +            ret = av_utf8_decode(&code, &p, endp, (*wctx)->string_validation_utf8_flags);
 +            if (ret < 0) {
 +                AVBPrint bp;
 +                av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
 +                bprint_bytes(&bp, p0, p-p0),
 +                    av_log(wctx, AV_LOG_ERROR,
 +                           "Invalid UTF8 sequence %s found in string validation replace '%s'\n",
 +                           bp.str, (*wctx)->string_validation_replacement);
 +                return ret;
 +            }
 +        }
 +    }
 +
 +    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
 +        av_bprint_init(&(*wctx)->section_pbuf[i], 1, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    if ((*wctx)->writer->init)
 +        ret = (*wctx)->writer->init(*wctx);
 +    if (ret < 0)
 +        goto fail;
 +
 +    return 0;
 +
 +fail:
 +    writer_close(wctx);
 +    return ret;
 +}
 +
 +static inline void writer_print_section_header(WriterContext *wctx,
 +                                               int section_id)
 +{
 +    int parent_section_id;
 +    wctx->level++;
 +    av_assert0(wctx->level < SECTION_MAX_NB_LEVELS);
 +    parent_section_id = wctx->level ?
 +        (wctx->section[wctx->level-1])->id : SECTION_ID_NONE;
 +
 +    wctx->nb_item[wctx->level] = 0;
 +    wctx->section[wctx->level] = &wctx->sections[section_id];
 +
 +    if (section_id == SECTION_ID_PACKETS_AND_FRAMES) {
 +        wctx->nb_section_packet = wctx->nb_section_frame =
 +        wctx->nb_section_packet_frame = 0;
 +    } else if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
 +        wctx->nb_section_packet_frame = section_id == SECTION_ID_PACKET ?
 +            wctx->nb_section_packet : wctx->nb_section_frame;
 +    }
 +
 +    if (wctx->writer->print_section_header)
 +        wctx->writer->print_section_header(wctx);
 +}
 +
 +static inline void writer_print_section_footer(WriterContext *wctx)
 +{
 +    int section_id = wctx->section[wctx->level]->id;
 +    int parent_section_id = wctx->level ?
 +        wctx->section[wctx->level-1]->id : SECTION_ID_NONE;
 +
 +    if (parent_section_id != SECTION_ID_NONE)
 +        wctx->nb_item[wctx->level-1]++;
 +    if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
 +        if (section_id == SECTION_ID_PACKET) wctx->nb_section_packet++;
 +        else                                     wctx->nb_section_frame++;
 +    }
 +    if (wctx->writer->print_section_footer)
 +        wctx->writer->print_section_footer(wctx);
 +    wctx->level--;
 +}
 +
 +static inline void writer_print_integer(WriterContext *wctx,
 +                                        const char *key, long long int val)
 +{
 +    const struct section *section = wctx->section[wctx->level];
 +
 +    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
 +        wctx->writer->print_integer(wctx, key, val);
 +        wctx->nb_item[wctx->level]++;
 +    }
 +}
 +
 +static inline int validate_string(WriterContext *wctx, char **dstp, const char *src)
 +{
 +    const uint8_t *p, *endp;
 +    AVBPrint dstbuf;
 +    int invalid_chars_nb = 0, ret = 0;
 +
 +    av_bprint_init(&dstbuf, 0, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    endp = src + strlen(src);
 +    for (p = (uint8_t *)src; *p;) {
 +        uint32_t code;
 +        int invalid = 0;
 +        const uint8_t *p0 = p;
 +
 +        if (av_utf8_decode(&code, &p, endp, wctx->string_validation_utf8_flags) < 0) {
 +            AVBPrint bp;
 +            av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
 +            bprint_bytes(&bp, p0, p-p0);
 +            av_log(wctx, AV_LOG_DEBUG,
 +                   "Invalid UTF-8 sequence %s found in string '%s'\n", bp.str, src);
 +            invalid = 1;
 +        }
 +
 +        if (invalid) {
 +            invalid_chars_nb++;
 +
 +            switch (wctx->string_validation) {
 +            case WRITER_STRING_VALIDATION_FAIL:
 +                av_log(wctx, AV_LOG_ERROR,
 +                       "Invalid UTF-8 sequence found in string '%s'\n", src);
 +                ret = AVERROR_INVALIDDATA;
 +                goto end;
 +                break;
 +
 +            case WRITER_STRING_VALIDATION_REPLACE:
 +                av_bprintf(&dstbuf, "%s", wctx->string_validation_replacement);
 +                break;
 +            }
 +        }
 +
 +        if (!invalid || wctx->string_validation == WRITER_STRING_VALIDATION_IGNORE)
 +            av_bprint_append_data(&dstbuf, p0, p-p0);
 +    }
 +
 +    if (invalid_chars_nb && wctx->string_validation == WRITER_STRING_VALIDATION_REPLACE) {
 +        av_log(wctx, AV_LOG_WARNING,
 +               "%d invalid UTF-8 sequence(s) found in string '%s', replaced with '%s'\n",
 +               invalid_chars_nb, src, wctx->string_validation_replacement);
 +    }
 +
 +end:
 +    av_bprint_finalize(&dstbuf, dstp);
 +    return ret;
 +}
 +
 +#define PRINT_STRING_OPT      1
 +#define PRINT_STRING_VALIDATE 2
 +
 +static inline int writer_print_string(WriterContext *wctx,
 +                                      const char *key, const char *val, int flags)
 +{
 +    const struct section *section = wctx->section[wctx->level];
 +    int ret = 0;
 +
 +    if ((flags & PRINT_STRING_OPT)
 +        && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS))
 +        return 0;
 +
 +    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
 +        if (flags & PRINT_STRING_VALIDATE) {
 +            char *key1 = NULL, *val1 = NULL;
 +            ret = validate_string(wctx, &key1, key);
 +            if (ret < 0) goto end;
 +            ret = validate_string(wctx, &val1, val);
 +            if (ret < 0) goto end;
 +            wctx->writer->print_string(wctx, key1, val1);
 +        end:
 +            if (ret < 0) {
 +                av_log(wctx, AV_LOG_ERROR,
 +                       "Invalid key=value string combination %s=%s in section %s\n",
 +                       key, val, section->unique_name);
 +            }
 +            av_free(key1);
 +            av_free(val1);
 +        } else {
 +            wctx->writer->print_string(wctx, key, val);
 +        }
 +
 +        wctx->nb_item[wctx->level]++;
 +    }
 +
 +    return ret;
 +}
 +
 +static inline void writer_print_rational(WriterContext *wctx,
 +                                         const char *key, AVRational q, char sep)
 +{
 +    AVBPrint buf;
 +    av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
 +    av_bprintf(&buf, "%d%c%d", q.num, sep, q.den);
 +    writer_print_string(wctx, key, buf.str, 0);
 +}
 +
 +static void writer_print_time(WriterContext *wctx, const char *key,
 +                              int64_t ts, const AVRational *time_base, int is_duration)
 +{
 +    char buf[128];
 +
 +    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
 +        writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
 +    } else {
 +        double d = ts * av_q2d(*time_base);
 +        struct unit_value uv;
 +        uv.val.d = d;
 +        uv.unit = unit_second_str;
 +        value_string(buf, sizeof(buf), uv);
 +        writer_print_string(wctx, key, buf, 0);
 +    }
 +}
 +
 +static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts, int is_duration)
 +{
 +    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
 +        writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
 +    } else {
 +        writer_print_integer(wctx, key, ts);
 +    }
 +}
 +
 +static void writer_print_data(WriterContext *wctx, const char *name,
 +                              uint8_t *data, int size)
 +{
 +    AVBPrint bp;
 +    int offset = 0, l, i;
 +
 +    av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
 +    av_bprintf(&bp, "\n");
 +    while (size) {
 +        av_bprintf(&bp, "%08x: ", offset);
 +        l = FFMIN(size, 16);
 +        for (i = 0; i < l; i++) {
 +            av_bprintf(&bp, "%02x", data[i]);
 +            if (i & 1)
 +                av_bprintf(&bp, " ");
 +        }
 +        av_bprint_chars(&bp, ' ', 41 - 2 * i - i / 2);
 +        for (i = 0; i < l; i++)
 +            av_bprint_chars(&bp, data[i] - 32U < 95 ? data[i] : '.', 1);
 +        av_bprintf(&bp, "\n");
 +        offset += l;
 +        data   += l;
 +        size   -= l;
 +    }
 +    writer_print_string(wctx, name, bp.str, 0);
 +    av_bprint_finalize(&bp, NULL);
 +}
 +
 +static void writer_print_data_hash(WriterContext *wctx, const char *name,
 +                                   uint8_t *data, int size)
 +{
 +    char *p, buf[AV_HASH_MAX_SIZE * 2 + 64] = { 0 };
 +
 +    if (!hash)
 +        return;
 +    av_hash_init(hash);
 +    av_hash_update(hash, data, size);
 +    snprintf(buf, sizeof(buf), "%s:", av_hash_get_name(hash));
 +    p = buf + strlen(buf);
 +    av_hash_final_hex(hash, p, buf + sizeof(buf) - p);
 +    writer_print_string(wctx, name, buf, 0);
 +}
 +
 +static void writer_print_integers(WriterContext *wctx, const char *name,
 +                                  uint8_t *data, int size, const char *format,
 +                                  int columns, int bytes, int offset_add)
 +{
 +    AVBPrint bp;
 +    int offset = 0, l, i;
 +
 +    av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
 +    av_bprintf(&bp, "\n");
 +    while (size) {
 +        av_bprintf(&bp, "%08x: ", offset);
 +        l = FFMIN(size, columns);
 +        for (i = 0; i < l; i++) {
 +            if      (bytes == 1) av_bprintf(&bp, format, *data);
 +            else if (bytes == 2) av_bprintf(&bp, format, AV_RN16(data));
 +            else if (bytes == 4) av_bprintf(&bp, format, AV_RN32(data));
 +            data += bytes;
 +            size --;
 +        }
 +        av_bprintf(&bp, "\n");
 +        offset += offset_add;
 +    }
 +    writer_print_string(wctx, name, bp.str, 0);
 +    av_bprint_finalize(&bp, NULL);
 +}
 +
 +#define MAX_REGISTERED_WRITERS_NB 64
 +
 +static const Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1];
 +
 +static int writer_register(const Writer *writer)
 +{
 +    static int next_registered_writer_idx = 0;
 +
 +    if (next_registered_writer_idx == MAX_REGISTERED_WRITERS_NB)
 +        return AVERROR(ENOMEM);
 +
 +    registered_writers[next_registered_writer_idx++] = writer;
 +    return 0;
 +}
 +
 +static const Writer *writer_get_by_name(const char *name)
 +{
 +    int i;
 +
 +    for (i = 0; registered_writers[i]; i++)
 +        if (!strcmp(registered_writers[i]->name, name))
 +            return registered_writers[i];
 +
 +    return NULL;
 +}
 +
 +
 +/* WRITERS */
 +
 +#define DEFINE_WRITER_CLASS(name)                   \
 +static const char *name##_get_name(void *ctx)       \
 +{                                                   \
 +    return #name ;                                  \
 +}                                                   \
 +static const AVClass name##_class = {               \
 +    .class_name = #name,                            \
 +    .item_name  = name##_get_name,                  \
 +    .option     = name##_options                    \
 +}
 +
 +/* Default output */
 +
 +typedef struct DefaultContext {
 +    const AVClass *class;
 +    int nokey;
 +    int noprint_wrappers;
 +    int nested_section[SECTION_MAX_NB_LEVELS];
 +} DefaultContext;
 +
 +#undef OFFSET
 +#define OFFSET(x) offsetof(DefaultContext, x)
 +
 +static const AVOption default_options[] = {
 +    { "noprint_wrappers", "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 +    { "nw",               "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 +    { "nokey",          "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 +    { "nk",             "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 +    {NULL},
 +};
 +
 +DEFINE_WRITER_CLASS(default);
 +
 +/* lame uppercasing routine, assumes the string is lower case ASCII */
 +static inline char *upcase_string(char *dst, size_t dst_size, const char *src)
 +{
 +    int i;
 +    for (i = 0; src[i] && i < dst_size-1; i++)
 +        dst[i] = av_toupper(src[i]);
 +    dst[i] = 0;
 +    return dst;
 +}
 +
 +static void default_print_section_header(WriterContext *wctx)
 +{
 +    DefaultContext *def = wctx->priv;
 +    char buf[32];
 +    const struct section *section = wctx->section[wctx->level];
 +    const struct section *parent_section = wctx->level ?
 +        wctx->section[wctx->level-1] : NULL;
 +
 +    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
 +    if (parent_section &&
 +        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
 +        def->nested_section[wctx->level] = 1;
 +        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
 +                   wctx->section_pbuf[wctx->level-1].str,
 +                   upcase_string(buf, sizeof(buf),
 +                                 av_x_if_null(section->element_name, section->name)));
 +    }
 +
 +    if (def->noprint_wrappers || def->nested_section[wctx->level])
 +        return;
 +
 +    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
 +        printf("[%s]\n", upcase_string(buf, sizeof(buf), section->name));
 +}
 +
 +static void default_print_section_footer(WriterContext *wctx)
 +{
 +    DefaultContext *def = wctx->priv;
 +    const struct section *section = wctx->section[wctx->level];
 +    char buf[32];
 +
 +    if (def->noprint_wrappers || def->nested_section[wctx->level])
 +        return;
 +
 +    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
 +        printf("[/%s]\n", upcase_string(buf, sizeof(buf), section->name));
 +}
 +
 +static void default_print_str(WriterContext *wctx, const char *key, const char *value)
 +{
 +    DefaultContext *def = wctx->priv;
 +
 +    if (!def->nokey)
 +        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
 +    printf("%s\n", value);
 +}
 +
 +static void default_print_int(WriterContext *wctx, const char *key, long long int value)
 +{
 +    DefaultContext *def = wctx->priv;
 +
 +    if (!def->nokey)
 +        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
 +    printf("%lld\n", value);
 +}
 +
 +static const Writer default_writer = {
 +    .name                  = "default",
 +    .priv_size             = sizeof(DefaultContext),
 +    .print_section_header  = default_print_section_header,
 +    .print_section_footer  = default_print_section_footer,
 +    .print_integer         = default_print_int,
 +    .print_string          = default_print_str,
 +    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
 +    .priv_class            = &default_class,
 +};
 +
 +/* Compact output */
 +
 +/**
 + * Apply C-language-like string escaping.
 + */
 +static const char *c_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
 +{
 +    const char *p;
 +
 +    for (p = src; *p; p++) {
 +        switch (*p) {
 +        case '\b': av_bprintf(dst, "%s", "\\b");  break;
 +        case '\f': av_bprintf(dst, "%s", "\\f");  break;
 +        case '\n': av_bprintf(dst, "%s", "\\n");  break;
 +        case '\r': av_bprintf(dst, "%s", "\\r");  break;
 +        case '\\': av_bprintf(dst, "%s", "\\\\"); break;
 +        default:
 +            if (*p == sep)
 +                av_bprint_chars(dst, '\\', 1);
 +            av_bprint_chars(dst, *p, 1);
 +        }
 +    }
 +    return dst->str;
 +}
 +
 +/**
 + * Quote fields containing special characters, check RFC4180.
 + */
 +static const char *csv_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
 +{
 +    char meta_chars[] = { sep, '"', '\n', '\r', '\0' };
 +    int needs_quoting = !!src[strcspn(src, meta_chars)];
 +
 +    if (needs_quoting)
 +        av_bprint_chars(dst, '"', 1);
 +
 +    for (; *src; src++) {
 +        if (*src == '"')
 +            av_bprint_chars(dst, '"', 1);
 +        av_bprint_chars(dst, *src, 1);
 +    }
 +    if (needs_quoting)
 +        av_bprint_chars(dst, '"', 1);
 +    return dst->str;
 +}
 +
 +static const char *none_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
 +{
 +    return src;
 +}
 +
 +typedef struct CompactContext {
 +    const AVClass *class;
 +    char *item_sep_str;
 +    char item_sep;
 +    int nokey;
 +    int print_section;
 +    char *escape_mode_str;
 +    const char * (*escape_str)(AVBPrint *dst, const char *src, const char sep, void *log_ctx);
 +    int nested_section[SECTION_MAX_NB_LEVELS];
 +    int has_nested_elems[SECTION_MAX_NB_LEVELS];
 +    int terminate_line[SECTION_MAX_NB_LEVELS];
 +} CompactContext;
 +
 +#undef OFFSET
 +#define OFFSET(x) offsetof(CompactContext, x)
 +
 +static const AVOption compact_options[]= {
 +    {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  CHAR_MIN, CHAR_MAX },
 +    {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  CHAR_MIN, CHAR_MAX },
 +    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=0},    0,        1        },
 +    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=0},    0,        1        },
 +    {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  CHAR_MIN, CHAR_MAX },
 +    {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  CHAR_MIN, CHAR_MAX },
 +    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
 +    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
 +    {NULL},
 +};
 +
 +DEFINE_WRITER_CLASS(compact);
 +
 +static av_cold int compact_init(WriterContext *wctx)
 +{
 +    CompactContext *compact = wctx->priv;
 +
 +    if (strlen(compact->item_sep_str) != 1) {
 +        av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
 +               compact->item_sep_str);
 +        return AVERROR(EINVAL);
 +    }
 +    compact->item_sep = compact->item_sep_str[0];
 +
 +    if      (!strcmp(compact->escape_mode_str, "none")) compact->escape_str = none_escape_str;
 +    else if (!strcmp(compact->escape_mode_str, "c"   )) compact->escape_str = c_escape_str;
 +    else if (!strcmp(compact->escape_mode_str, "csv" )) compact->escape_str = csv_escape_str;
 +    else {
 +        av_log(wctx, AV_LOG_ERROR, "Unknown escape mode '%s'\n", compact->escape_mode_str);
 +        return AVERROR(EINVAL);
 +    }
 +
 +    return 0;
 +}
 +
 +static void compact_print_section_header(WriterContext *wctx)
 +{
 +    CompactContext *compact = wctx->priv;
 +    const struct section *section = wctx->section[wctx->level];
 +    const struct section *parent_section = wctx->level ?
 +        wctx->section[wctx->level-1] : NULL;
 +    compact->terminate_line[wctx->level] = 1;
 +    compact->has_nested_elems[wctx->level] = 0;
 +
 +    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
 +    if (!(section->flags & SECTION_FLAG_IS_ARRAY) && parent_section &&
 +        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
 +        compact->nested_section[wctx->level] = 1;
 +        compact->has_nested_elems[wctx->level-1] = 1;
 +        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
 +                   wctx->section_pbuf[wctx->level-1].str,
 +                   (char *)av_x_if_null(section->element_name, section->name));
 +        wctx->nb_item[wctx->level] = wctx->nb_item[wctx->level-1];
 +    } else {
 +        if (parent_section && compact->has_nested_elems[wctx->level-1] &&
 +            (section->flags & SECTION_FLAG_IS_ARRAY)) {
 +            compact->terminate_line[wctx->level-1] = 0;
 +            printf("\n");
 +        }
 +        if (compact->print_section &&
 +            !(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
 +            printf("%s%c", section->name, compact->item_sep);
 +    }
 +}
 +
 +static void compact_print_section_footer(WriterContext *wctx)
 +{
 +    CompactContext *compact = wctx->priv;
 +
 +    if (!compact->nested_section[wctx->level] &&
 +        compact->terminate_line[wctx->level] &&
 +        !(wctx->section[wctx->level]->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
 +        printf("\n");
 +}
 +
 +static void compact_print_str(WriterContext *wctx, const char *key, const char *value)
 +{
 +    CompactContext *compact = wctx->priv;
 +    AVBPrint buf;
 +
 +    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
 +    if (!compact->nokey)
 +        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
 +    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +    printf("%s", compact->escape_str(&buf, value, compact->item_sep, wctx));
 +    av_bprint_finalize(&buf, NULL);
 +}
 +
 +static void compact_print_int(WriterContext *wctx, const char *key, long long int value)
 +{
 +    CompactContext *compact = wctx->priv;
 +
 +    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
 +    if (!compact->nokey)
 +        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
 +    printf("%lld", value);
 +}
 +
 +static const Writer compact_writer = {
 +    .name                 = "compact",
 +    .priv_size            = sizeof(CompactContext),
 +    .init                 = compact_init,
 +    .print_section_header = compact_print_section_header,
 +    .print_section_footer = compact_print_section_footer,
 +    .print_integer        = compact_print_int,
 +    .print_string         = compact_print_str,
 +    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
 +    .priv_class           = &compact_class,
 +};
 +
 +/* CSV output */
 +
 +#undef OFFSET
 +#define OFFSET(x) offsetof(CompactContext, x)
 +
 +static const AVOption csv_options[] = {
 +    {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  CHAR_MIN, CHAR_MAX },
 +    {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  CHAR_MIN, CHAR_MAX },
 +    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
 +    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
 +    {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX },
 +    {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX },
 +    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
 +    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
 +    {NULL},
 +};
 +
 +DEFINE_WRITER_CLASS(csv);
 +
 +static const Writer csv_writer = {
 +    .name                 = "csv",
 +    .priv_size            = sizeof(CompactContext),
 +    .init                 = compact_init,
 +    .print_section_header = compact_print_section_header,
 +    .print_section_footer = compact_print_section_footer,
 +    .print_integer        = compact_print_int,
 +    .print_string         = compact_print_str,
 +    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
 +    .priv_class           = &csv_class,
 +};
 +
 +/* Flat output */
 +
 +typedef struct FlatContext {
 +    const AVClass *class;
 +    const char *sep_str;
 +    char sep;
 +    int hierarchical;
 +} FlatContext;
 +
 +#undef OFFSET
 +#define OFFSET(x) offsetof(FlatContext, x)
 +
 +static const AVOption flat_options[]= {
 +    {"sep_char", "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  CHAR_MIN, CHAR_MAX },
 +    {"s",        "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  CHAR_MIN, CHAR_MAX },
 +    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
 +    {"h",            "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
 +    {NULL},
 +};
 +
 +DEFINE_WRITER_CLASS(flat);
 +
 +static av_cold int flat_init(WriterContext *wctx)
 +{
 +    FlatContext *flat = wctx->priv;
 +
 +    if (strlen(flat->sep_str) != 1) {
 +        av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
 +               flat->sep_str);
 +        return AVERROR(EINVAL);
 +    }
 +    flat->sep = flat->sep_str[0];
 +
 +    return 0;
 +}
 +
 +static const char *flat_escape_key_str(AVBPrint *dst, const char *src, const char sep)
 +{
 +    const char *p;
 +
 +    for (p = src; *p; p++) {
 +        if (!((*p >= '0' && *p <= '9') ||
 +              (*p >= 'a' && *p <= 'z') ||
 +              (*p >= 'A' && *p <= 'Z')))
 +            av_bprint_chars(dst, '_', 1);
 +        else
 +            av_bprint_chars(dst, *p, 1);
 +    }
 +    return dst->str;
 +}
 +
 +static const char *flat_escape_value_str(AVBPrint *dst, const char *src)
 +{
 +    const char *p;
 +
 +    for (p = src; *p; p++) {
 +        switch (*p) {
 +        case '\n': av_bprintf(dst, "%s", "\\n");  break;
 +        case '\r': av_bprintf(dst, "%s", "\\r");  break;
 +        case '\\': av_bprintf(dst, "%s", "\\\\"); break;
 +        case '"':  av_bprintf(dst, "%s", "\\\""); break;
 +        case '`':  av_bprintf(dst, "%s", "\\`");  break;
 +        case '$':  av_bprintf(dst, "%s", "\\$");  break;
 +        default:   av_bprint_chars(dst, *p, 1);   break;
 +        }
 +    }
 +    return dst->str;
 +}
 +
 +static void flat_print_section_header(WriterContext *wctx)
 +{
 +    FlatContext *flat = wctx->priv;
 +    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
 +    const struct section *section = wctx->section[wctx->level];
 +    const struct section *parent_section = wctx->level ?
 +        wctx->section[wctx->level-1] : NULL;
 +
 +    /* build section header */
 +    av_bprint_clear(buf);
 +    if (!parent_section)
 +        return;
 +    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
 +
 +    if (flat->hierarchical ||
 +        !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
 +        av_bprintf(buf, "%s%s", wctx->section[wctx->level]->name, flat->sep_str);
 +
 +        if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
 +            int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
 +                wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
 +            av_bprintf(buf, "%d%s", n, flat->sep_str);
 +        }
 +    }
 +}
 +
 +static void flat_print_int(WriterContext *wctx, const char *key, long long int value)
 +{
 +    printf("%s%s=%lld\n", wctx->section_pbuf[wctx->level].str, key, value);
 +}
 +
 +static void flat_print_str(WriterContext *wctx, const char *key, const char *value)
 +{
 +    FlatContext *flat = wctx->priv;
 +    AVBPrint buf;
 +
 +    printf("%s", wctx->section_pbuf[wctx->level].str);
 +    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +    printf("%s=", flat_escape_key_str(&buf, key, flat->sep));
 +    av_bprint_clear(&buf);
 +    printf("\"%s\"\n", flat_escape_value_str(&buf, value));
 +    av_bprint_finalize(&buf, NULL);
 +}
 +
 +static const Writer flat_writer = {
 +    .name                  = "flat",
 +    .priv_size             = sizeof(FlatContext),
 +    .init                  = flat_init,
 +    .print_section_header  = flat_print_section_header,
 +    .print_integer         = flat_print_int,
 +    .print_string          = flat_print_str,
 +    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
 +    .priv_class            = &flat_class,
 +};
 +
 +/* INI format output */
 +
 +typedef struct INIContext {
 +    const AVClass *class;
 +    int hierarchical;
 +} INIContext;
 +
 +#undef OFFSET
 +#define OFFSET(x) offsetof(INIContext, x)
 +
 +static const AVOption ini_options[] = {
 +    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
 +    {"h",            "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
 +    {NULL},
 +};
 +
 +DEFINE_WRITER_CLASS(ini);
 +
 +static char *ini_escape_str(AVBPrint *dst, const char *src)
 +{
 +    int i = 0;
 +    char c = 0;
 +
 +    while (c = src[i++]) {
 +        switch (c) {
 +        case '\b': av_bprintf(dst, "%s", "\\b"); break;
 +        case '\f': av_bprintf(dst, "%s", "\\f"); break;
 +        case '\n': av_bprintf(dst, "%s", "\\n"); break;
 +        case '\r': av_bprintf(dst, "%s", "\\r"); break;
 +        case '\t': av_bprintf(dst, "%s", "\\t"); break;
 +        case '\\':
 +        case '#' :
 +        case '=' :
 +        case ':' : av_bprint_chars(dst, '\\', 1);
 +        default:
 +            if ((unsigned char)c < 32)
 +                av_bprintf(dst, "\\x00%02x", c & 0xff);
 +            else
 +                av_bprint_chars(dst, c, 1);
 +            break;
 +        }
 +    }
 +    return dst->str;
 +}
 +
 +static void ini_print_section_header(WriterContext *wctx)
 +{
 +    INIContext *ini = wctx->priv;
 +    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
 +    const struct section *section = wctx->section[wctx->level];
 +    const struct section *parent_section = wctx->level ?
 +        wctx->section[wctx->level-1] : NULL;
 +
 +    av_bprint_clear(buf);
 +    if (!parent_section) {
 +        printf("# ffprobe output\n\n");
 +        return;
 +    }
 +
 +    if (wctx->nb_item[wctx->level-1])
 +        printf("\n");
 +
 +    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
 +    if (ini->hierarchical ||
 +        !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
 +        av_bprintf(buf, "%s%s", buf->str[0] ? "." : "", wctx->section[wctx->level]->name);
 +
 +        if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
 +            int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
 +                wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
 +            av_bprintf(buf, ".%d", n);
 +        }
 +    }
 +
 +    if (!(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER)))
 +        printf("[%s]\n", buf->str);
 +}
 +
 +static void ini_print_str(WriterContext *wctx, const char *key, const char *value)
 +{
 +    AVBPrint buf;
 +
 +    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +    printf("%s=", ini_escape_str(&buf, key));
 +    av_bprint_clear(&buf);
 +    printf("%s\n", ini_escape_str(&buf, value));
 +    av_bprint_finalize(&buf, NULL);
 +}
 +
 +static void ini_print_int(WriterContext *wctx, const char *key, long long int value)
 +{
 +    printf("%s=%lld\n", key, value);
 +}
 +
 +static const Writer ini_writer = {
 +    .name                  = "ini",
 +    .priv_size             = sizeof(INIContext),
 +    .print_section_header  = ini_print_section_header,
 +    .print_integer         = ini_print_int,
 +    .print_string          = ini_print_str,
 +    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
 +    .priv_class            = &ini_class,
 +};
 +
 +/* JSON output */
 +
 +typedef struct JSONContext {
 +    const AVClass *class;
 +    int indent_level;
 +    int compact;
 +    const char *item_sep, *item_start_end;
 +} JSONContext;
 +
 +#undef OFFSET
 +#define OFFSET(x) offsetof(JSONContext, x)
 +
 +static const AVOption json_options[]= {
 +    { "compact", "enable compact output", OFFSET(compact), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 +    { "c",       "enable compact output", OFFSET(compact), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
 +    { NULL }
 +};
 +
 +DEFINE_WRITER_CLASS(json);
 +
 +static av_cold int json_init(WriterContext *wctx)
 +{
 +    JSONContext *json = wctx->priv;
 +
 +    json->item_sep       = json->compact ? ", " : ",\n";
 +    json->item_start_end = json->compact ? " "  : "\n";
 +
 +    return 0;
 +}
 +
 +static const char *json_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
 +{
 +    static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0};
 +    static const char json_subst[]  = {'"', '\\',  'b',  'f',  'n',  'r',  't', 0};
 +    const char *p;
 +
 +    for (p = src; *p; p++) {
 +        char *s = strchr(json_escape, *p);
 +        if (s) {
 +            av_bprint_chars(dst, '\\', 1);
 +            av_bprint_chars(dst, json_subst[s - json_escape], 1);
 +        } else if ((unsigned char)*p < 32) {
 +            av_bprintf(dst, "\\u00%02x", *p & 0xff);
 +        } else {
 +            av_bprint_chars(dst, *p, 1);
 +        }
 +    }
 +    return dst->str;
 +}
 +
 +#define JSON_INDENT() printf("%*c", json->indent_level * 4, ' ')
 +
 +static void json_print_section_header(WriterContext *wctx)
 +{
 +    JSONContext *json = wctx->priv;
 +    AVBPrint buf;
 +    const struct section *section = wctx->section[wctx->level];
 +    const struct section *parent_section = wctx->level ?
 +        wctx->section[wctx->level-1] : NULL;
 +
 +    if (wctx->level && wctx->nb_item[wctx->level-1])
 +        printf(",\n");
 +
 +    if (section->flags & SECTION_FLAG_IS_WRAPPER) {
 +        printf("{\n");
 +        json->indent_level++;
 +    } else {
 +        av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +        json_escape_str(&buf, section->name, wctx);
 +        JSON_INDENT();
 +
 +        json->indent_level++;
 +        if (section->flags & SECTION_FLAG_IS_ARRAY) {
 +            printf("\"%s\": [\n", buf.str);
 +        } else if (parent_section && !(parent_section->flags & SECTION_FLAG_IS_ARRAY)) {
 +            printf("\"%s\": {%s", buf.str, json->item_start_end);
 +        } else {
 +            printf("{%s", json->item_start_end);
 +
 +            /* this is required so the parser can distinguish between packets and frames */
 +            if (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES) {
 +                if (!json->compact)
 +                    JSON_INDENT();
 +                printf("\"type\": \"%s\"%s", section->name, json->item_sep);
 +            }
 +        }
 +        av_bprint_finalize(&buf, NULL);
 +    }
 +}
 +
 +static void json_print_section_footer(WriterContext *wctx)
 +{
 +    JSONContext *json = wctx->priv;
 +    const struct section *section = wctx->section[wctx->level];
 +
 +    if (wctx->level == 0) {
 +        json->indent_level--;
 +        printf("\n}\n");
 +    } else if (section->flags & SECTION_FLAG_IS_ARRAY) {
 +        printf("\n");
 +        json->indent_level--;
 +        JSON_INDENT();
 +        printf("]");
 +    } else {
 +        printf("%s", json->item_start_end);
 +        json->indent_level--;
 +        if (!json->compact)
 +            JSON_INDENT();
 +        printf("}");
 +    }
 +}
 +
 +static inline void json_print_item_str(WriterContext *wctx,
 +                                       const char *key, const char *value)
 +{
 +    AVBPrint buf;
 +
 +    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +    printf("\"%s\":", json_escape_str(&buf, key,   wctx));
 +    av_bprint_clear(&buf);
 +    printf(" \"%s\"", json_escape_str(&buf, value, wctx));
 +    av_bprint_finalize(&buf, NULL);
 +}
 +
 +static void json_print_str(WriterContext *wctx, const char *key, const char *value)
 +{
 +    JSONContext *json = wctx->priv;
 +
 +    if (wctx->nb_item[wctx->level])
 +        printf("%s", json->item_sep);
 +    if (!json->compact)
 +        JSON_INDENT();
 +    json_print_item_str(wctx, key, value);
 +}
 +
 +static void json_print_int(WriterContext *wctx, const char *key, long long int value)
 +{
 +    JSONContext *json = wctx->priv;
 +    AVBPrint buf;
 +
 +    if (wctx->nb_item[wctx->level])
 +        printf("%s", json->item_sep);
 +    if (!json->compact)
 +        JSON_INDENT();
 +
 +    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +    printf("\"%s\": %lld", json_escape_str(&buf, key, wctx), value);
 +    av_bprint_finalize(&buf, NULL);
 +}
 +
 +static const Writer json_writer = {
 +    .name                 = "json",
 +    .priv_size            = sizeof(JSONContext),
 +    .init                 = json_init,
 +    .print_section_header = json_print_section_header,
 +    .print_section_footer = json_print_section_footer,
 +    .print_integer        = json_print_int,
 +    .print_string         = json_print_str,
 +    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
 +    .priv_class           = &json_class,
 +};
 +
 +/* XML output */
 +
 +typedef struct XMLContext {
 +    const AVClass *class;
 +    int within_tag;
 +    int indent_level;
 +    int fully_qualified;
 +    int xsd_strict;
 +} XMLContext;
 +
 +#undef OFFSET
 +#define OFFSET(x) offsetof(XMLContext, x)
 +
 +static const AVOption xml_options[] = {
 +    {"fully_qualified", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
 +    {"q",               "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
 +    {"xsd_strict",      "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
 +    {"x",               "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
 +    {NULL},
 +};
 +
 +DEFINE_WRITER_CLASS(xml);
 +
 +static av_cold int xml_init(WriterContext *wctx)
 +{
 +    XMLContext *xml = wctx->priv;
 +
 +    if (xml->xsd_strict) {
 +        xml->fully_qualified = 1;
 +#define CHECK_COMPLIANCE(opt, opt_name)                                 \
 +        if (opt) {                                                      \
 +            av_log(wctx, AV_LOG_ERROR,                                  \
 +                   "XSD-compliant output selected but option '%s' was selected, XML output may be non-compliant.\n" \
 +                   "You need to disable such option with '-no%s'\n", opt_name, opt_name); \
 +            return AVERROR(EINVAL);                                     \
 +        }
 +        CHECK_COMPLIANCE(show_private_data, "private");
 +        CHECK_COMPLIANCE(show_value_unit,   "unit");
 +        CHECK_COMPLIANCE(use_value_prefix,  "prefix");
 +
 +        if (do_show_frames && do_show_packets) {
 +            av_log(wctx, AV_LOG_ERROR,
 +                   "Interleaved frames and packets are not allowed in XSD. "
 +                   "Select only one between the -show_frames and the -show_packets options.\n");
 +            return AVERROR(EINVAL);
 +        }
 +    }
 +
 +    return 0;
 +}
 +
 +static const char *xml_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
 +{
 +    const char *p;
 +
 +    for (p = src; *p; p++) {
 +        switch (*p) {
 +        case '&' : av_bprintf(dst, "%s", "&");  break;
 +        case '<' : av_bprintf(dst, "%s", "<");   break;
 +        case '>' : av_bprintf(dst, "%s", ">");   break;
 +        case '"' : av_bprintf(dst, "%s", """); break;
 +        case '\'': av_bprintf(dst, "%s", "'"); break;
 +        default: av_bprint_chars(dst, *p, 1);
 +        }
 +    }
 +
 +    return dst->str;
 +}
 +
 +#define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ')
 +
 +static void xml_print_section_header(WriterContext *wctx)
 +{
 +    XMLContext *xml = wctx->priv;
 +    const struct section *section = wctx->section[wctx->level];
 +    const struct section *parent_section = wctx->level ?
 +        wctx->section[wctx->level-1] : NULL;
 +
 +    if (wctx->level == 0) {
 +        const char *qual = " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' "
 +            "xmlns:ffprobe='http://www.ffmpeg.org/schema/ffprobe' "
 +            "xsi:schemaLocation='http://www.ffmpeg.org/schema/ffprobe ffprobe.xsd'";
 +
 +        printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
 +        printf("<%sffprobe%s>\n",
 +               xml->fully_qualified ? "ffprobe:" : "",
 +               xml->fully_qualified ? qual : "");
 +        return;
 +    }
 +
 +    if (xml->within_tag) {
 +        xml->within_tag = 0;
 +        printf(">\n");
 +    }
 +    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
 +        xml->indent_level++;
 +    } else {
 +        if (parent_section && (parent_section->flags & SECTION_FLAG_IS_WRAPPER) &&
 +            wctx->level && wctx->nb_item[wctx->level-1])
 +            printf("\n");
 +        xml->indent_level++;
 +
 +        if (section->flags & SECTION_FLAG_IS_ARRAY) {
 +            XML_INDENT(); printf("<%s>\n", section->name);
 +        } else {
 +            XML_INDENT(); printf("<%s ", section->name);
 +            xml->within_tag = 1;
 +        }
 +    }
 +}
 +
 +static void xml_print_section_footer(WriterContext *wctx)
 +{
 +    XMLContext *xml = wctx->priv;
 +    const struct section *section = wctx->section[wctx->level];
 +
 +    if (wctx->level == 0) {
 +        printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : "");
 +    } else if (xml->within_tag) {
 +        xml->within_tag = 0;
 +        printf("/>\n");
 +        xml->indent_level--;
 +    } else if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
 +        xml->indent_level--;
 +    } else {
 +        XML_INDENT(); printf("</%s>\n", section->name);
 +        xml->indent_level--;
 +    }
 +}
 +
 +static void xml_print_str(WriterContext *wctx, const char *key, const char *value)
 +{
 +    AVBPrint buf;
 +    XMLContext *xml = wctx->priv;
 +    const struct section *section = wctx->section[wctx->level];
 +
 +    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
 +        XML_INDENT();
 +        printf("<%s key=\"%s\"",
 +               section->element_name, xml_escape_str(&buf, key, wctx));
 +        av_bprint_clear(&buf);
 +        printf(" value=\"%s\"/>\n", xml_escape_str(&buf, value, wctx));
 +    } else {
 +        if (wctx->nb_item[wctx->level])
 +            printf(" ");
 +        printf("%s=\"%s\"", key, xml_escape_str(&buf, value, wctx));
 +    }
 +
 +    av_bprint_finalize(&buf, NULL);
 +}
 +
 +static void xml_print_int(WriterContext *wctx, const char *key, long long int value)
 +{
 +    if (wctx->nb_item[wctx->level])
 +        printf(" ");
 +    printf("%s=\"%lld\"", key, value);
 +}
 +
 +static Writer xml_writer = {
 +    .name                 = "xml",
 +    .priv_size            = sizeof(XMLContext),
 +    .init                 = xml_init,
 +    .print_section_header = xml_print_section_header,
 +    .print_section_footer = xml_print_section_footer,
 +    .print_integer        = xml_print_int,
 +    .print_string         = xml_print_str,
 +    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
 +    .priv_class           = &xml_class,
 +};
 +
 +static void writer_register_all(void)
 +{
 +    static int initialized;
 +
 +    if (initialized)
 +        return;
 +    initialized = 1;
 +
 +    writer_register(&default_writer);
 +    writer_register(&compact_writer);
 +    writer_register(&csv_writer);
 +    writer_register(&flat_writer);
 +    writer_register(&ini_writer);
 +    writer_register(&json_writer);
 +    writer_register(&xml_writer);
 +}
 +
 +#define print_fmt(k, f, ...) do {              \
 +    av_bprint_clear(&pbuf);                    \
 +    av_bprintf(&pbuf, f, __VA_ARGS__);         \
 +    writer_print_string(w, k, pbuf.str, 0);    \
 +} while (0)
 +
 +#define print_int(k, v)         writer_print_integer(w, k, v)
 +#define print_q(k, v, s)        writer_print_rational(w, k, v, s)
 +#define print_str(k, v)         writer_print_string(w, k, v, 0)
 +#define print_str_opt(k, v)     writer_print_string(w, k, v, PRINT_STRING_OPT)
 +#define print_str_validate(k, v) writer_print_string(w, k, v, PRINT_STRING_VALIDATE)
 +#define print_time(k, v, tb)    writer_print_time(w, k, v, tb, 0)
 +#define print_ts(k, v)          writer_print_ts(w, k, v, 0)
 +#define print_duration_time(k, v, tb) writer_print_time(w, k, v, tb, 1)
 +#define print_duration_ts(k, v)       writer_print_ts(w, k, v, 1)
 +#define print_val(k, v, u) do {                                     \
 +    struct unit_value uv;                                           \
 +    uv.val.i = v;                                                   \
 +    uv.unit = u;                                                    \
 +    writer_print_string(w, k, value_string(val_str, sizeof(val_str), uv), 0); \
 +} while (0)
 +
 +#define print_section_header(s) writer_print_section_header(w, s)
 +#define print_section_footer(s) writer_print_section_footer(w, s)
 +
 +#define REALLOCZ_ARRAY_STREAM(ptr, cur_n, new_n)                        \
 +{                                                                       \
 +    ret = av_reallocp_array(&(ptr), (new_n), sizeof(*(ptr)));           \
 +    if (ret < 0)                                                        \
 +        goto end;                                                       \
 +    memset( (ptr) + (cur_n), 0, ((new_n) - (cur_n)) * sizeof(*(ptr)) ); \
 +}
 +
 +static inline int show_tags(WriterContext *w, AVDictionary *tags, int section_id)
 +{
 +    AVDictionaryEntry *tag = NULL;
 +    int ret = 0;
 +
 +    if (!tags)
 +        return 0;
 +    writer_print_section_header(w, section_id);
 +
 +    while ((tag = av_dict_get(tags, "", tag, AV_DICT_IGNORE_SUFFIX))) {
 +        if ((ret = print_str_validate(tag->key, tag->value)) < 0)
 +            break;
 +    }
 +    writer_print_section_footer(w);
 +
 +    return ret;
 +}
 +
 +static void show_packet(WriterContext *w, AVFormatContext *fmt_ctx, AVPacket *pkt, int packet_idx)
 +{
 +    char val_str[128];
 +    AVStream *st = fmt_ctx->streams[pkt->stream_index];
 +    AVBPrint pbuf;
 +    const char *s;
 +
 +    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    writer_print_section_header(w, SECTION_ID_PACKET);
 +
 +    s = av_get_media_type_string(st->codec->codec_type);
 +    if (s) print_str    ("codec_type", s);
 +    else   print_str_opt("codec_type", "unknown");
 +    print_int("stream_index",     pkt->stream_index);
 +    print_ts  ("pts",             pkt->pts);
 +    print_time("pts_time",        pkt->pts, &st->time_base);
 +    print_ts  ("dts",             pkt->dts);
 +    print_time("dts_time",        pkt->dts, &st->time_base);
 +    print_duration_ts("duration",        pkt->duration);
 +    print_duration_time("duration_time", pkt->duration, &st->time_base);
 +    print_duration_ts("convergence_duration", pkt->convergence_duration);
 +    print_duration_time("convergence_duration_time", pkt->convergence_duration, &st->time_base);
 +    print_val("size",             pkt->size, unit_byte_str);
 +    if (pkt->pos != -1) print_fmt    ("pos", "%"PRId64, pkt->pos);
 +    else                print_str_opt("pos", "N/A");
 +    print_fmt("flags", "%c",      pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
 +
 +    if (pkt->side_data_elems) {
 +        int i;
 +        int size;
 +        const uint8_t *side_metadata;
 +
 +        side_metadata = av_packet_get_side_data(pkt, AV_PKT_DATA_STRINGS_METADATA, &size);
 +        if (side_metadata && size && do_show_packet_tags) {
 +            AVDictionary *dict = NULL;
 +            if (av_packet_unpack_dictionary(side_metadata, size, &dict) >= 0)
 +                show_tags(w, dict, SECTION_ID_PACKET_TAGS);
 +            av_dict_free(&dict);
 +        }
 +        writer_print_section_header(w, SECTION_ID_PACKET_SIDE_DATA_LIST);
 +        for (i = 0; i < pkt->side_data_elems; i++) {
 +            AVPacketSideData *sd = &pkt->side_data[i];
 +            const char *name = av_packet_side_data_name(sd->type);
 +            writer_print_section_header(w, SECTION_ID_PACKET_SIDE_DATA);
 +            print_str("side_data_type", name ? name : "unknown");
 +            print_int("side_data_size", sd->size);
 +            if (sd->type == AV_PKT_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
 +                writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
 +                print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
 +            }
 +            writer_print_section_footer(w);
 +        }
 +        writer_print_section_footer(w);
 +    }
 +
 +    if (do_show_data)
 +        writer_print_data(w, "data", pkt->data, pkt->size);
 +    writer_print_data_hash(w, "data_hash", pkt->data, pkt->size);
 +    writer_print_section_footer(w);
 +
 +    av_bprint_finalize(&pbuf, NULL);
 +    fflush(stdout);
 +}
 +
 +static void show_subtitle(WriterContext *w, AVSubtitle *sub, AVStream *stream,
 +                          AVFormatContext *fmt_ctx)
 +{
 +    AVBPrint pbuf;
 +
 +    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    writer_print_section_header(w, SECTION_ID_SUBTITLE);
 +
 +    print_str ("media_type",         "subtitle");
 +    print_ts  ("pts",                 sub->pts);
 +    print_time("pts_time",            sub->pts, &AV_TIME_BASE_Q);
 +    print_int ("format",              sub->format);
 +    print_int ("start_display_time",  sub->start_display_time);
 +    print_int ("end_display_time",    sub->end_display_time);
 +    print_int ("num_rects",           sub->num_rects);
 +
 +    writer_print_section_footer(w);
 +
 +    av_bprint_finalize(&pbuf, NULL);
 +    fflush(stdout);
 +}
 +
 +static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
 +                       AVFormatContext *fmt_ctx)
 +{
 +    AVBPrint pbuf;
 +    char val_str[128];
 +    const char *s;
 +    int i;
 +
 +    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    writer_print_section_header(w, SECTION_ID_FRAME);
 +
 +    s = av_get_media_type_string(stream->codec->codec_type);
 +    if (s) print_str    ("media_type", s);
 +    else   print_str_opt("media_type", "unknown");
 +    print_int("stream_index",           stream->index);
 +    print_int("key_frame",              frame->key_frame);
 +    print_ts  ("pkt_pts",               frame->pkt_pts);
 +    print_time("pkt_pts_time",          frame->pkt_pts, &stream->time_base);
 +    print_ts  ("pkt_dts",               frame->pkt_dts);
 +    print_time("pkt_dts_time",          frame->pkt_dts, &stream->time_base);
 +    print_ts  ("best_effort_timestamp", av_frame_get_best_effort_timestamp(frame));
 +    print_time("best_effort_timestamp_time", av_frame_get_best_effort_timestamp(frame), &stream->time_base);
 +    print_duration_ts  ("pkt_duration",      av_frame_get_pkt_duration(frame));
 +    print_duration_time("pkt_duration_time", av_frame_get_pkt_duration(frame), &stream->time_base);
 +    if (av_frame_get_pkt_pos (frame) != -1) print_fmt    ("pkt_pos", "%"PRId64, av_frame_get_pkt_pos(frame));
 +    else                      print_str_opt("pkt_pos", "N/A");
 +    if (av_frame_get_pkt_size(frame) != -1) print_val    ("pkt_size", av_frame_get_pkt_size(frame), unit_byte_str);
 +    else                       print_str_opt("pkt_size", "N/A");
 +
 +    switch (stream->codec->codec_type) {
 +        AVRational sar;
 +
 +    case AVMEDIA_TYPE_VIDEO:
 +        print_int("width",                  frame->width);
 +        print_int("height",                 frame->height);
 +        s = av_get_pix_fmt_name(frame->format);
 +        if (s) print_str    ("pix_fmt", s);
 +        else   print_str_opt("pix_fmt", "unknown");
 +        sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, frame);
 +        if (sar.num) {
 +            print_q("sample_aspect_ratio", sar, ':');
 +        } else {
 +            print_str_opt("sample_aspect_ratio", "N/A");
 +        }
 +        print_fmt("pict_type",              "%c", av_get_picture_type_char(frame->pict_type));
 +        print_int("coded_picture_number",   frame->coded_picture_number);
 +        print_int("display_picture_number", frame->display_picture_number);
 +        print_int("interlaced_frame",       frame->interlaced_frame);
 +        print_int("top_field_first",        frame->top_field_first);
 +        print_int("repeat_pict",            frame->repeat_pict);
 +        break;
 +
 +    case AVMEDIA_TYPE_AUDIO:
 +        s = av_get_sample_fmt_name(frame->format);
 +        if (s) print_str    ("sample_fmt", s);
 +        else   print_str_opt("sample_fmt", "unknown");
 +        print_int("nb_samples",         frame->nb_samples);
 +        print_int("channels", av_frame_get_channels(frame));
 +        if (av_frame_get_channel_layout(frame)) {
 +            av_bprint_clear(&pbuf);
 +            av_bprint_channel_layout(&pbuf, av_frame_get_channels(frame),
 +                                     av_frame_get_channel_layout(frame));
 +            print_str    ("channel_layout", pbuf.str);
 +        } else
 +            print_str_opt("channel_layout", "unknown");
 +        break;
 +    }
 +    if (do_show_frame_tags)
 +        show_tags(w, av_frame_get_metadata(frame), SECTION_ID_FRAME_TAGS);
 +    if (frame->nb_side_data) {
 +        writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_LIST);
 +        for (i = 0; i < frame->nb_side_data; i++) {
 +            AVFrameSideData *sd = frame->side_data[i];
 +            const char *name;
 +
 +            writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA);
 +            name = av_frame_side_data_name(sd->type);
 +            print_str("side_data_type", name ? name : "unknown");
 +            print_int("side_data_size", sd->size);
 +            if (sd->type == AV_FRAME_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
 +                writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
 +                print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
 +            } else if (sd->type == AV_FRAME_DATA_GOP_TIMECODE && sd->size >= 8) {
 +                char tcbuf[AV_TIMECODE_STR_SIZE];
 +                av_timecode_make_mpeg_tc_string(tcbuf, *(int64_t *)(sd->data));
 +                print_str("timecode", tcbuf);
 +            }
 +            writer_print_section_footer(w);
 +        }
 +        writer_print_section_footer(w);
 +    }
 +
 +    writer_print_section_footer(w);
 +
 +    av_bprint_finalize(&pbuf, NULL);
 +    fflush(stdout);
 +}
 +
 +static av_always_inline int process_frame(WriterContext *w,
 +                                          AVFormatContext *fmt_ctx,
 +                                          AVFrame *frame, AVPacket *pkt)
 +{
 +    AVCodecContext *dec_ctx = fmt_ctx->streams[pkt->stream_index]->codec;
 +    AVSubtitle sub;
 +    int ret = 0, got_frame = 0;
 +
 +    if (dec_ctx->codec) {
 +        switch (dec_ctx->codec_type) {
 +        case AVMEDIA_TYPE_VIDEO:
 +            ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, pkt);
 +            break;
 +
 +        case AVMEDIA_TYPE_AUDIO:
 +            ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, pkt);
 +            break;
 +
 +        case AVMEDIA_TYPE_SUBTITLE:
 +            ret = avcodec_decode_subtitle2(dec_ctx, &sub, &got_frame, pkt);
 +            break;
 +        }
 +    }
 +
 +    if (ret < 0)
 +        return ret;
 +    ret = FFMIN(ret, pkt->size); /* guard against bogus return values */
 +    pkt->data += ret;
 +    pkt->size -= ret;
 +    if (got_frame) {
 +        int is_sub = (dec_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE);
 +        nb_streams_frames[pkt->stream_index]++;
 +        if (do_show_frames)
 +            if (is_sub)
 +                show_subtitle(w, &sub, fmt_ctx->streams[pkt->stream_index], fmt_ctx);
 +            else
 +                show_frame(w, frame, fmt_ctx->streams[pkt->stream_index], fmt_ctx);
 +        if (is_sub)
 +            avsubtitle_free(&sub);
 +    }
 +    return got_frame;
 +}
 +
 +static void log_read_interval(const ReadInterval *interval, void *log_ctx, int log_level)
 +{
 +    av_log(log_ctx, log_level, "id:%d", interval->id);
 +
 +    if (interval->has_start) {
 +        av_log(log_ctx, log_level, " start:%s%s", interval->start_is_offset ? "+" : "",
 +               av_ts2timestr(interval->start, &AV_TIME_BASE_Q));
 +    } else {
 +        av_log(log_ctx, log_level, " start:N/A");
 +    }
 +
 +    if (interval->has_end) {
 +        av_log(log_ctx, log_level, " end:%s", interval->end_is_offset ? "+" : "");
 +        if (interval->duration_frames)
 +            av_log(log_ctx, log_level, "#%"PRId64, interval->end);
 +        else
 +            av_log(log_ctx, log_level, "%s", av_ts2timestr(interval->end, &AV_TIME_BASE_Q));
 +    } else {
 +        av_log(log_ctx, log_level, " end:N/A");
 +    }
 +
 +    av_log(log_ctx, log_level, "\n");
 +}
 +
 +static int read_interval_packets(WriterContext *w, AVFormatContext *fmt_ctx,
 +                                 const ReadInterval *interval, int64_t *cur_ts)
 +{
 +    AVPacket pkt, pkt1;
 +    AVFrame *frame = NULL;
 +    int ret = 0, i = 0, frame_count = 0;
 +    int64_t start = -INT64_MAX, end = interval->end;
 +    int has_start = 0, has_end = interval->has_end && !interval->end_is_offset;
 +
 +    av_init_packet(&pkt);
 +
 +    av_log(NULL, AV_LOG_VERBOSE, "Processing read interval ");
 +    log_read_interval(interval, NULL, AV_LOG_VERBOSE);
 +
 +    if (interval->has_start) {
 +        int64_t target;
 +        if (interval->start_is_offset) {
 +            if (*cur_ts == AV_NOPTS_VALUE) {
 +                av_log(NULL, AV_LOG_ERROR,
 +                       "Could not seek to relative position since current "
 +                       "timestamp is not defined\n");
 +                ret = AVERROR(EINVAL);
 +                goto end;
 +            }
 +            target = *cur_ts + interval->start;
 +        } else {
 +            target = interval->start;
 +        }
 +
 +        av_log(NULL, AV_LOG_VERBOSE, "Seeking to read interval start point %s\n",
 +               av_ts2timestr(target, &AV_TIME_BASE_Q));
 +        if ((ret = avformat_seek_file(fmt_ctx, -1, -INT64_MAX, target, INT64_MAX, 0)) < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Could not seek to position %"PRId64": %s\n",
 +                   interval->start, av_err2str(ret));
 +            goto end;
 +        }
 +    }
 +
 +    frame = av_frame_alloc();
 +    if (!frame) {
 +        ret = AVERROR(ENOMEM);
 +        goto end;
 +    }
 +    while (!av_read_frame(fmt_ctx, &pkt)) {
 +        if (fmt_ctx->nb_streams > nb_streams) {
 +            REALLOCZ_ARRAY_STREAM(nb_streams_frames,  nb_streams, fmt_ctx->nb_streams);
 +            REALLOCZ_ARRAY_STREAM(nb_streams_packets, nb_streams, fmt_ctx->nb_streams);
 +            REALLOCZ_ARRAY_STREAM(selected_streams,   nb_streams, fmt_ctx->nb_streams);
 +            nb_streams = fmt_ctx->nb_streams;
 +        }
 +        if (selected_streams[pkt.stream_index]) {
 +            AVRational tb = fmt_ctx->streams[pkt.stream_index]->time_base;
 +
 +            if (pkt.pts != AV_NOPTS_VALUE)
 +                *cur_ts = av_rescale_q(pkt.pts, tb, AV_TIME_BASE_Q);
 +
 +            if (!has_start && *cur_ts != AV_NOPTS_VALUE) {
 +                start = *cur_ts;
 +                has_start = 1;
 +            }
 +
 +            if (has_start && !has_end && interval->end_is_offset) {
 +                end = start + interval->end;
 +                has_end = 1;
 +            }
 +
 +            if (interval->end_is_offset && interval->duration_frames) {
 +                if (frame_count >= interval->end)
 +                    break;
 +            } else if (has_end && *cur_ts != AV_NOPTS_VALUE && *cur_ts >= end) {
 +                break;
 +            }
 +
 +            frame_count++;
 +            if (do_read_packets) {
 +                if (do_show_packets)
 +                    show_packet(w, fmt_ctx, &pkt, i++);
 +                nb_streams_packets[pkt.stream_index]++;
 +            }
 +            if (do_read_frames) {
 +                pkt1 = pkt;
 +                while (pkt1.size && process_frame(w, fmt_ctx, frame, &pkt1) > 0);
 +            }
 +        }
 +        av_packet_unref(&pkt);
 +    }
 +    av_init_packet(&pkt);
 +    pkt.data = NULL;
 +    pkt.size = 0;
 +    //Flush remaining frames that are cached in the decoder
 +    for (i = 0; i < fmt_ctx->nb_streams; i++) {
 +        pkt.stream_index = i;
 +        if (do_read_frames)
 +            while (process_frame(w, fmt_ctx, frame, &pkt) > 0);
 +    }
 +
 +end:
 +    av_frame_free(&frame);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_ERROR, "Could not read packets in interval ");
 +        log_read_interval(interval, NULL, AV_LOG_ERROR);
 +    }
 +    return ret;
 +}
 +
 +static int read_packets(WriterContext *w, InputFile *ifile)
 +{
 +    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
 +    int i, ret = 0;
 +    int64_t cur_ts = fmt_ctx->start_time;
 +
 +    if (read_intervals_nb == 0) {
 +        ReadInterval interval = (ReadInterval) { .has_start = 0, .has_end = 0 };
 +        ret = read_interval_packets(w, fmt_ctx, &interval, &cur_ts);
 +    } else {
 +        for (i = 0; i < read_intervals_nb; i++) {
 +            ret = read_interval_packets(w, fmt_ctx, &read_intervals[i], &cur_ts);
 +            if (ret < 0)
 +                break;
 +        }
 +    }
 +
 +    return ret;
 +}
 +
 +static int show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx, int in_program)
 +{
 +    AVStream *stream = fmt_ctx->streams[stream_idx];
 +    AVCodecContext *dec_ctx;
 +    char val_str[128];
 +    const char *s;
 +    AVRational sar, dar;
 +    AVBPrint pbuf;
 +    const AVCodecDescriptor *cd;
 +    int ret = 0;
 +    const char *profile = NULL;
 +
 +    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM : SECTION_ID_STREAM);
 +
 +    print_int("index", stream->index);
 +
 +    dec_ctx = stream->codec;
 +    if (cd = avcodec_descriptor_get(stream->codec->codec_id)) {
 +        print_str("codec_name", cd->name);
 +        if (!do_bitexact) {
 +            print_str("codec_long_name",
 +                      cd->long_name ? cd->long_name : "unknown");
 +        }
 +    } else {
 +        print_str_opt("codec_name", "unknown");
 +        if (!do_bitexact) {
 +            print_str_opt("codec_long_name", "unknown");
 +        }
 +    }
 +
 +    if (!do_bitexact && (profile = avcodec_profile_name(dec_ctx->codec_id, dec_ctx->profile)))
 +        print_str("profile", profile);
 +    else {
 +        if (dec_ctx->profile != FF_PROFILE_UNKNOWN) {
 +            char profile_num[12];
 +            snprintf(profile_num, sizeof(profile_num), "%d", dec_ctx->profile);
 +            print_str("profile", profile_num);
 +        } else
 +            print_str_opt("profile", "unknown");
 +    }
 +
 +    s = av_get_media_type_string(dec_ctx->codec_type);
 +    if (s) print_str    ("codec_type", s);
 +    else   print_str_opt("codec_type", "unknown");
 +    print_q("codec_time_base", dec_ctx->time_base, '/');
 +
 +    /* print AVI/FourCC tag */
 +    av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
 +    print_str("codec_tag_string",    val_str);
 +    print_fmt("codec_tag", "0x%04x", dec_ctx->codec_tag);
 +
 +    switch (dec_ctx->codec_type) {
 +    case AVMEDIA_TYPE_VIDEO:
 +        print_int("width",        dec_ctx->width);
 +        print_int("height",       dec_ctx->height);
 +        print_int("coded_width",  dec_ctx->coded_width);
 +        print_int("coded_height", dec_ctx->coded_height);
 +        print_int("has_b_frames", dec_ctx->has_b_frames);
 +        sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL);
 +        if (sar.den) {
 +            print_q("sample_aspect_ratio", sar, ':');
 +            av_reduce(&dar.num, &dar.den,
 +                      dec_ctx->width  * sar.num,
 +                      dec_ctx->height * sar.den,
 +                      1024*1024);
 +            print_q("display_aspect_ratio", dar, ':');
 +        } else {
 +            print_str_opt("sample_aspect_ratio", "N/A");
 +            print_str_opt("display_aspect_ratio", "N/A");
 +        }
 +        s = av_get_pix_fmt_name(dec_ctx->pix_fmt);
 +        if (s) print_str    ("pix_fmt", s);
 +        else   print_str_opt("pix_fmt", "unknown");
 +        print_int("level",   dec_ctx->level);
 +        if (dec_ctx->color_range != AVCOL_RANGE_UNSPECIFIED)
 +            print_str    ("color_range", av_color_range_name(dec_ctx->color_range));
 +        else
 +            print_str_opt("color_range", "N/A");
 +
 +        s = av_get_colorspace_name(dec_ctx->colorspace);
 +        if (s) print_str    ("color_space", s);
 +        else   print_str_opt("color_space", "unknown");
 +
 +        if (dec_ctx->color_trc != AVCOL_TRC_UNSPECIFIED)
 +            print_str("color_transfer", av_color_transfer_name(dec_ctx->color_trc));
 +        else
 +            print_str_opt("color_transfer", av_color_transfer_name(dec_ctx->color_trc));
 +
 +        if (dec_ctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
 +            print_str("color_primaries", av_color_primaries_name(dec_ctx->color_primaries));
 +        else
 +            print_str_opt("color_primaries", av_color_primaries_name(dec_ctx->color_primaries));
 +
 +        if (dec_ctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
 +            print_str("chroma_location", av_chroma_location_name(dec_ctx->chroma_sample_location));
 +        else
 +            print_str_opt("chroma_location", av_chroma_location_name(dec_ctx->chroma_sample_location));
 +
 +#if FF_API_PRIVATE_OPT
 +        if (dec_ctx->timecode_frame_start >= 0) {
 +            char tcbuf[AV_TIMECODE_STR_SIZE];
 +            av_timecode_make_mpeg_tc_string(tcbuf, dec_ctx->timecode_frame_start);
 +            print_str("timecode", tcbuf);
 +        } else {
 +            print_str_opt("timecode", "N/A");
 +        }
 +#endif
 +        print_int("refs", dec_ctx->refs);
 +        break;
 +
 +    case AVMEDIA_TYPE_AUDIO:
 +        s = av_get_sample_fmt_name(dec_ctx->sample_fmt);
 +        if (s) print_str    ("sample_fmt", s);
 +        else   print_str_opt("sample_fmt", "unknown");
 +        print_val("sample_rate",     dec_ctx->sample_rate, unit_hertz_str);
 +        print_int("channels",        dec_ctx->channels);
 +
 +        if (dec_ctx->channel_layout) {
 +            av_bprint_clear(&pbuf);
 +            av_bprint_channel_layout(&pbuf, dec_ctx->channels, dec_ctx->channel_layout);
 +            print_str    ("channel_layout", pbuf.str);
 +        } else {
 +            print_str_opt("channel_layout", "unknown");
 +        }
 +
 +        print_int("bits_per_sample", av_get_bits_per_sample(dec_ctx->codec_id));
 +        break;
 +
 +    case AVMEDIA_TYPE_SUBTITLE:
 +        if (dec_ctx->width)
 +            print_int("width",       dec_ctx->width);
 +        else
 +            print_str_opt("width",   "N/A");
 +        if (dec_ctx->height)
 +            print_int("height",      dec_ctx->height);
 +        else
 +            print_str_opt("height",  "N/A");
 +        break;
 +    }
 +
 +    if (dec_ctx->codec && dec_ctx->codec->priv_class && show_private_data) {
 +        const AVOption *opt = NULL;
 +        while (opt = av_opt_next(dec_ctx->priv_data,opt)) {
 +            uint8_t *str;
 +            if (opt->flags) continue;
 +            if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) {
 +                print_str(opt->name, str);
 +                av_free(str);
 +            }
 +        }
 +    }
 +
 +    if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt    ("id", "0x%x", stream->id);
 +    else                                          print_str_opt("id", "N/A");
 +    print_q("r_frame_rate",   stream->r_frame_rate,   '/');
 +    print_q("avg_frame_rate", stream->avg_frame_rate, '/');
 +    print_q("time_base",      stream->time_base,      '/');
 +    print_ts  ("start_pts",   stream->start_time);
 +    print_time("start_time",  stream->start_time, &stream->time_base);
 +    print_ts  ("duration_ts", stream->duration);
 +    print_time("duration",    stream->duration, &stream->time_base);
 +    if (dec_ctx->bit_rate > 0) print_val    ("bit_rate", dec_ctx->bit_rate, unit_bit_per_second_str);
 +    else                       print_str_opt("bit_rate", "N/A");
 +    if (dec_ctx->rc_max_rate > 0) print_val ("max_bit_rate", dec_ctx->rc_max_rate, unit_bit_per_second_str);
 +    else                       print_str_opt("max_bit_rate", "N/A");
 +    if (dec_ctx->bits_per_raw_sample > 0) print_fmt("bits_per_raw_sample", "%d", dec_ctx->bits_per_raw_sample);
 +    else                       print_str_opt("bits_per_raw_sample", "N/A");
 +    if (stream->nb_frames) print_fmt    ("nb_frames", "%"PRId64, stream->nb_frames);
 +    else                   print_str_opt("nb_frames", "N/A");
 +    if (nb_streams_frames[stream_idx])  print_fmt    ("nb_read_frames", "%"PRIu64, nb_streams_frames[stream_idx]);
 +    else                                print_str_opt("nb_read_frames", "N/A");
 +    if (nb_streams_packets[stream_idx]) print_fmt    ("nb_read_packets", "%"PRIu64, nb_streams_packets[stream_idx]);
 +    else                                print_str_opt("nb_read_packets", "N/A");
 +    if (do_show_data)
 +        writer_print_data(w, "extradata", dec_ctx->extradata,
 +                                          dec_ctx->extradata_size);
 +    writer_print_data_hash(w, "extradata_hash", dec_ctx->extradata,
 +                                                dec_ctx->extradata_size);
 +
 +    /* Print disposition information */
 +#define PRINT_DISPOSITION(flagname, name) do {                                \
 +        print_int(name, !!(stream->disposition & AV_DISPOSITION_##flagname)); \
 +    } while (0)
 +
 +    if (do_show_stream_disposition) {
 +    writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM_DISPOSITION : SECTION_ID_STREAM_DISPOSITION);
 +    PRINT_DISPOSITION(DEFAULT,          "default");
 +    PRINT_DISPOSITION(DUB,              "dub");
 +    PRINT_DISPOSITION(ORIGINAL,         "original");
 +    PRINT_DISPOSITION(COMMENT,          "comment");
 +    PRINT_DISPOSITION(LYRICS,           "lyrics");
 +    PRINT_DISPOSITION(KARAOKE,          "karaoke");
 +    PRINT_DISPOSITION(FORCED,           "forced");
 +    PRINT_DISPOSITION(HEARING_IMPAIRED, "hearing_impaired");
 +    PRINT_DISPOSITION(VISUAL_IMPAIRED,  "visual_impaired");
 +    PRINT_DISPOSITION(CLEAN_EFFECTS,    "clean_effects");
 +    PRINT_DISPOSITION(ATTACHED_PIC,     "attached_pic");
 +    writer_print_section_footer(w);
 +    }
 +
 +    if (do_show_stream_tags)
 +        ret = show_tags(w, stream->metadata, in_program ? SECTION_ID_PROGRAM_STREAM_TAGS : SECTION_ID_STREAM_TAGS);
 +
 +    if (stream->nb_side_data) {
 +        int i;
 +        writer_print_section_header(w, SECTION_ID_STREAM_SIDE_DATA_LIST);
 +        for (i = 0; i < stream->nb_side_data; i++) {
 +            AVPacketSideData *sd = &stream->side_data[i];
 +            const char *name = av_packet_side_data_name(sd->type);
 +
 +            writer_print_section_header(w, SECTION_ID_STREAM_SIDE_DATA);
 +            print_str("side_data_type", name ? name : "unknown");
 +            print_int("side_data_size", sd->size);
 +            if (sd->type == AV_PKT_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
 +                writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
 +                print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
 +            }
 +            writer_print_section_footer(w);
 +        }
 +        writer_print_section_footer(w);
 +    }
 +
 +    writer_print_section_footer(w);
 +    av_bprint_finalize(&pbuf, NULL);
 +    fflush(stdout);
 +
 +    return ret;
 +}
 +
 +static int show_streams(WriterContext *w, InputFile *ifile)
 +{
 +    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
 +    int i, ret = 0;
 +
 +    writer_print_section_header(w, SECTION_ID_STREAMS);
 +    for (i = 0; i < fmt_ctx->nb_streams; i++)
 +        if (selected_streams[i]) {
 +            ret = show_stream(w, fmt_ctx, i, 0);
 +            if (ret < 0)
 +                break;
 +        }
 +    writer_print_section_footer(w);
 +
 +    return ret;
 +}
 +
 +static int show_program(WriterContext *w, AVFormatContext *fmt_ctx, AVProgram *program)
 +{
 +    int i, ret = 0;
 +
 +    writer_print_section_header(w, SECTION_ID_PROGRAM);
 +    print_int("program_id", program->id);
 +    print_int("program_num", program->program_num);
 +    print_int("nb_streams", program->nb_stream_indexes);
 +    print_int("pmt_pid", program->pmt_pid);
 +    print_int("pcr_pid", program->pcr_pid);
 +    print_ts("start_pts", program->start_time);
 +    print_time("start_time", program->start_time, &AV_TIME_BASE_Q);
 +    print_ts("end_pts", program->end_time);
 +    print_time("end_time", program->end_time, &AV_TIME_BASE_Q);
 +    if (do_show_program_tags)
 +        ret = show_tags(w, program->metadata, SECTION_ID_PROGRAM_TAGS);
 +    if (ret < 0)
 +        goto end;
 +
 +    writer_print_section_header(w, SECTION_ID_PROGRAM_STREAMS);
 +    for (i = 0; i < program->nb_stream_indexes; i++) {
 +        if (selected_streams[program->stream_index[i]]) {
 +            ret = show_stream(w, fmt_ctx, program->stream_index[i], 1);
 +            if (ret < 0)
 +                break;
 +        }
 +    }
 +    writer_print_section_footer(w);
 +
 +end:
 +    writer_print_section_footer(w);
 +    return ret;
 +}
 +
 +static int show_programs(WriterContext *w, InputFile *ifile)
 +{
 +    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
 +    int i, ret = 0;
 +
 +    writer_print_section_header(w, SECTION_ID_PROGRAMS);
 +    for (i = 0; i < fmt_ctx->nb_programs; i++) {
 +        AVProgram *program = fmt_ctx->programs[i];
 +        if (!program)
 +            continue;
 +        ret = show_program(w, fmt_ctx, program);
 +        if (ret < 0)
 +            break;
 +    }
 +    writer_print_section_footer(w);
 +    return ret;
 +}
 +
 +static int show_chapters(WriterContext *w, InputFile *ifile)
 +{
 +    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
 +    int i, ret = 0;
 +
 +    writer_print_section_header(w, SECTION_ID_CHAPTERS);
 +    for (i = 0; i < fmt_ctx->nb_chapters; i++) {
 +        AVChapter *chapter = fmt_ctx->chapters[i];
 +
 +        writer_print_section_header(w, SECTION_ID_CHAPTER);
 +        print_int("id", chapter->id);
 +        print_q  ("time_base", chapter->time_base, '/');
 +        print_int("start", chapter->start);
 +        print_time("start_time", chapter->start, &chapter->time_base);
 +        print_int("end", chapter->end);
 +        print_time("end_time", chapter->end, &chapter->time_base);
 +        if (do_show_chapter_tags)
 +            ret = show_tags(w, chapter->metadata, SECTION_ID_CHAPTER_TAGS);
 +        writer_print_section_footer(w);
 +    }
 +    writer_print_section_footer(w);
 +
 +    return ret;
 +}
 +
 +static int show_format(WriterContext *w, InputFile *ifile)
 +{
 +    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
 +    char val_str[128];
 +    int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1;
 +    int ret = 0;
 +
 +    writer_print_section_header(w, SECTION_ID_FORMAT);
 +    print_str_validate("filename", fmt_ctx->filename);
 +    print_int("nb_streams",       fmt_ctx->nb_streams);
 +    print_int("nb_programs",      fmt_ctx->nb_programs);
 +    print_str("format_name",      fmt_ctx->iformat->name);
 +    if (!do_bitexact) {
 +        if (fmt_ctx->iformat->long_name) print_str    ("format_long_name", fmt_ctx->iformat->long_name);
 +        else                             print_str_opt("format_long_name", "unknown");
 +    }
 +    print_time("start_time",      fmt_ctx->start_time, &AV_TIME_BASE_Q);
 +    print_time("duration",        fmt_ctx->duration,   &AV_TIME_BASE_Q);
 +    if (size >= 0) print_val    ("size", size, unit_byte_str);
 +    else           print_str_opt("size", "N/A");
 +    if (fmt_ctx->bit_rate > 0) print_val    ("bit_rate", fmt_ctx->bit_rate, unit_bit_per_second_str);
 +    else                       print_str_opt("bit_rate", "N/A");
 +    print_int("probe_score", av_format_get_probe_score(fmt_ctx));
 +    if (do_show_format_tags)
 +        ret = show_tags(w, fmt_ctx->metadata, SECTION_ID_FORMAT_TAGS);
 +
 +    writer_print_section_footer(w);
 +    fflush(stdout);
 +    return ret;
 +}
 +
 +static void show_error(WriterContext *w, int err)
 +{
 +    char errbuf[128];
 +    const char *errbuf_ptr = errbuf;
 +
 +    if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
 +        errbuf_ptr = strerror(AVUNERROR(err));
 +
 +    writer_print_section_header(w, SECTION_ID_ERROR);
 +    print_int("code", err);
 +    print_str("string", errbuf_ptr);
 +    writer_print_section_footer(w);
 +}
 +
 +static int open_input_file(InputFile *ifile, const char *filename)
 +{
 +    int err, i, orig_nb_streams;
 +    AVFormatContext *fmt_ctx = NULL;
 +    AVDictionaryEntry *t;
 +    AVDictionary **opts;
 +    int scan_all_pmts_set = 0;
 +
 +    if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
 +        av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
 +        scan_all_pmts_set = 1;
 +    }
 +    if ((err = avformat_open_input(&fmt_ctx, filename,
 +                                   iformat, &format_opts)) < 0) {
 +        print_error(filename, err);
 +        return err;
 +    }
 +    ifile->fmt_ctx = fmt_ctx;
 +    if (scan_all_pmts_set)
 +        av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
 +    if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
 +        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
 +        return AVERROR_OPTION_NOT_FOUND;
 +    }
 +
 +    /* fill the streams in the format context */
 +    opts = setup_find_stream_info_opts(fmt_ctx, codec_opts);
 +    orig_nb_streams = fmt_ctx->nb_streams;
 +
 +    err = avformat_find_stream_info(fmt_ctx, opts);
 +
 +    for (i = 0; i < orig_nb_streams; i++)
 +        av_dict_free(&opts[i]);
 +    av_freep(&opts);
 +
 +    if (err < 0) {
 +        print_error(filename, err);
 +        return err;
 +    }
 +
 +    av_dump_format(fmt_ctx, 0, filename, 0);
 +
++    ifile->streams = av_mallocz_array(fmt_ctx->nb_streams,
++                                      sizeof(*ifile->streams));
++    if (!ifile->streams)
++        exit(1);
++    ifile->nb_streams = fmt_ctx->nb_streams;
++
 +    /* bind a decoder to each input stream */
 +    for (i = 0; i < fmt_ctx->nb_streams; i++) {
++        InputStream *ist = &ifile->streams[i];
 +        AVStream *stream = fmt_ctx->streams[i];
 +        AVCodec *codec;
 +
++        ist->st = stream;
++
 +        if (stream->codec->codec_id == AV_CODEC_ID_PROBE) {
 +            av_log(NULL, AV_LOG_WARNING,
 +                   "Failed to probe codec for input stream %d\n",
 +                    stream->index);
 +        } else if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
 +            av_log(NULL, AV_LOG_WARNING,
 +                    "Unsupported codec with id %d for input stream %d\n",
 +                    stream->codec->codec_id, stream->index);
 +        } else {
 +            AVDictionary *opts = filter_codec_opts(codec_opts, stream->codec->codec_id,
 +                                                   fmt_ctx, stream, codec);
 +            if (avcodec_open2(stream->codec, codec, &opts) < 0) {
 +                av_log(NULL, AV_LOG_WARNING, "Could not open codec for input stream %d\n",
 +                       stream->index);
 +            }
 +            if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
 +                av_log(NULL, AV_LOG_ERROR, "Option %s for input stream %d not found\n",
 +                       t->key, stream->index);
 +                return AVERROR_OPTION_NOT_FOUND;
 +            }
 +        }
 +    }
 +
 +    ifile->fmt_ctx = fmt_ctx;
 +    return 0;
 +}
 +
 +static void close_input_file(InputFile *ifile)
 +{
 +    int i;
 +    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
 +
 +    /* close decoder for each stream */
 +    for (i = 0; i < fmt_ctx->nb_streams; i++)
 +        if (fmt_ctx->streams[i]->codec->codec_id != AV_CODEC_ID_NONE)
 +            avcodec_close(fmt_ctx->streams[i]->codec);
 +
++    av_freep(&ifile->streams);
++    ifile->nb_streams = 0;
++
 +    avformat_close_input(&ifile->fmt_ctx);
 +}
 +
 +static int probe_file(WriterContext *wctx, const char *filename)
 +{
 +    InputFile ifile = { 0 };
 +    int ret, i;
 +    int section_id;
 +
 +    do_read_frames = do_show_frames || do_count_frames;
 +    do_read_packets = do_show_packets || do_count_packets;
 +
 +    ret = open_input_file(&ifile, filename);
 +    if (ret < 0)
 +        goto end;
 +
 +#define CHECK_END if (ret < 0) goto end
 +
 +    nb_streams = ifile.fmt_ctx->nb_streams;
 +    REALLOCZ_ARRAY_STREAM(nb_streams_frames,0,ifile.fmt_ctx->nb_streams);
 +    REALLOCZ_ARRAY_STREAM(nb_streams_packets,0,ifile.fmt_ctx->nb_streams);
 +    REALLOCZ_ARRAY_STREAM(selected_streams,0,ifile.fmt_ctx->nb_streams);
 +
 +    for (i = 0; i < ifile.fmt_ctx->nb_streams; i++) {
 +        if (stream_specifier) {
 +            ret = avformat_match_stream_specifier(ifile.fmt_ctx,
 +                                                  ifile.fmt_ctx->streams[i],
 +                                                  stream_specifier);
 +            CHECK_END;
 +            else
 +                selected_streams[i] = ret;
 +            ret = 0;
 +        } else {
 +            selected_streams[i] = 1;
 +        }
 +    }
 +
 +    if (do_read_frames || do_read_packets) {
 +        if (do_show_frames && do_show_packets &&
 +            wctx->writer->flags & WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER)
 +            section_id = SECTION_ID_PACKETS_AND_FRAMES;
 +        else if (do_show_packets && !do_show_frames)
 +            section_id = SECTION_ID_PACKETS;
 +        else // (!do_show_packets && do_show_frames)
 +            section_id = SECTION_ID_FRAMES;
 +        if (do_show_frames || do_show_packets)
 +            writer_print_section_header(wctx, section_id);
 +        ret = read_packets(wctx, &ifile);
 +        if (do_show_frames || do_show_packets)
 +            writer_print_section_footer(wctx);
 +        CHECK_END;
 +    }
 +
 +    if (do_show_programs) {
 +        ret = show_programs(wctx, &ifile);
 +        CHECK_END;
 +    }
 +
 +    if (do_show_streams) {
 +        ret = show_streams(wctx, &ifile);
 +        CHECK_END;
 +    }
 +    if (do_show_chapters) {
 +        ret = show_chapters(wctx, &ifile);
 +        CHECK_END;
 +    }
 +    if (do_show_format) {
 +        ret = show_format(wctx, &ifile);
 +        CHECK_END;
 +    }
 +
 +end:
 +    if (ifile.fmt_ctx)
 +        close_input_file(&ifile);
 +    av_freep(&nb_streams_frames);
 +    av_freep(&nb_streams_packets);
 +    av_freep(&selected_streams);
 +
 +    return ret;
 +}
 +
 +static void show_usage(void)
 +{
 +    av_log(NULL, AV_LOG_INFO, "Simple multimedia streams analyzer\n");
 +    av_log(NULL, AV_LOG_INFO, "usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
 +    av_log(NULL, AV_LOG_INFO, "\n");
 +}
 +
 +static void ffprobe_show_program_version(WriterContext *w)
 +{
 +    AVBPrint pbuf;
 +    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
 +
 +    writer_print_section_header(w, SECTION_ID_PROGRAM_VERSION);
 +    print_str("version", FFMPEG_VERSION);
 +    print_fmt("copyright", "Copyright (c) %d-%d the FFmpeg developers",
 +              program_birth_year, CONFIG_THIS_YEAR);
 +    print_str("compiler_ident", CC_IDENT);
 +    print_str("configuration", FFMPEG_CONFIGURATION);
 +    writer_print_section_footer(w);
 +
 +    av_bprint_finalize(&pbuf, NULL);
 +}
 +
 +#define SHOW_LIB_VERSION(libname, LIBNAME)                              \
 +    do {                                                                \
 +        if (CONFIG_##LIBNAME) {                                         \
 +            unsigned int version = libname##_version();                 \
 +            writer_print_section_header(w, SECTION_ID_LIBRARY_VERSION); \
 +            print_str("name",    "lib" #libname);                       \
 +            print_int("major",   LIB##LIBNAME##_VERSION_MAJOR);         \
 +            print_int("minor",   LIB##LIBNAME##_VERSION_MINOR);         \
 +            print_int("micro",   LIB##LIBNAME##_VERSION_MICRO);         \
 +            print_int("version", version);                              \
 +            print_str("ident",   LIB##LIBNAME##_IDENT);                 \
 +            writer_print_section_footer(w);                             \
 +        }                                                               \
 +    } while (0)
 +
 +static void ffprobe_show_library_versions(WriterContext *w)
 +{
 +    writer_print_section_header(w, SECTION_ID_LIBRARY_VERSIONS);
 +    SHOW_LIB_VERSION(avutil,     AVUTIL);
 +    SHOW_LIB_VERSION(avcodec,    AVCODEC);
 +    SHOW_LIB_VERSION(avformat,   AVFORMAT);
 +    SHOW_LIB_VERSION(avdevice,   AVDEVICE);
 +    SHOW_LIB_VERSION(avfilter,   AVFILTER);
 +    SHOW_LIB_VERSION(swscale,    SWSCALE);
 +    SHOW_LIB_VERSION(swresample, SWRESAMPLE);
 +    SHOW_LIB_VERSION(postproc,   POSTPROC);
 +    writer_print_section_footer(w);
 +}
 +
 +#define PRINT_PIX_FMT_FLAG(flagname, name)                                \
 +    do {                                                                  \
 +        print_int(name, !!(pixdesc->flags & AV_PIX_FMT_FLAG_##flagname)); \
 +    } while (0)
 +
 +static void ffprobe_show_pixel_formats(WriterContext *w)
 +{
 +    const AVPixFmtDescriptor *pixdesc = NULL;
 +    int i, n;
 +
 +    writer_print_section_header(w, SECTION_ID_PIXEL_FORMATS);
 +    while (pixdesc = av_pix_fmt_desc_next(pixdesc)) {
 +        writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT);
 +        print_str("name", pixdesc->name);
 +        print_int("nb_components", pixdesc->nb_components);
 +        if ((pixdesc->nb_components >= 3) && !(pixdesc->flags & AV_PIX_FMT_FLAG_RGB)) {
 +            print_int    ("log2_chroma_w", pixdesc->log2_chroma_w);
 +            print_int    ("log2_chroma_h", pixdesc->log2_chroma_h);
 +        } else {
 +            print_str_opt("log2_chroma_w", "N/A");
 +            print_str_opt("log2_chroma_h", "N/A");
 +        }
 +        n = av_get_bits_per_pixel(pixdesc);
 +        if (n) print_int    ("bits_per_pixel", n);
 +        else   print_str_opt("bits_per_pixel", "N/A");
 +        if (do_show_pixel_format_flags) {
 +            writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_FLAGS);
 +            PRINT_PIX_FMT_FLAG(BE,        "big_endian");
 +            PRINT_PIX_FMT_FLAG(PAL,       "palette");
 +            PRINT_PIX_FMT_FLAG(BITSTREAM, "bitstream");
 +            PRINT_PIX_FMT_FLAG(HWACCEL,   "hwaccel");
 +            PRINT_PIX_FMT_FLAG(PLANAR,    "planar");
 +            PRINT_PIX_FMT_FLAG(RGB,       "rgb");
 +            PRINT_PIX_FMT_FLAG(PSEUDOPAL, "pseudopal");
 +            PRINT_PIX_FMT_FLAG(ALPHA,     "alpha");
 +            writer_print_section_footer(w);
 +        }
 +        if (do_show_pixel_format_components && (pixdesc->nb_components > 0)) {
 +            writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENTS);
 +            for (i = 0; i < pixdesc->nb_components; i++) {
 +                writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENT);
 +                print_int("index", i + 1);
 +                print_int("bit_depth", pixdesc->comp[i].depth);
 +                writer_print_section_footer(w);
 +            }
 +            writer_print_section_footer(w);
 +        }
 +        writer_print_section_footer(w);
 +    }
 +    writer_print_section_footer(w);
 +}
 +
 +static int opt_format(void *optctx, const char *opt, const char *arg)
 +{
 +    iformat = av_find_input_format(arg);
 +    if (!iformat) {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown input format: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    return 0;
 +}
 +
 +static inline void mark_section_show_entries(SectionID section_id,
 +                                             int show_all_entries, AVDictionary *entries)
 +{
 +    struct section *section = &sections[section_id];
 +
 +    section->show_all_entries = show_all_entries;
 +    if (show_all_entries) {
 +        SectionID *id;
 +        for (id = section->children_ids; *id != -1; id++)
 +            mark_section_show_entries(*id, show_all_entries, entries);
 +    } else {
 +        av_dict_copy(&section->entries_to_show, entries, 0);
 +    }
 +}
 +
 +static int match_section(const char *section_name,
 +                         int show_all_entries, AVDictionary *entries)
 +{
 +    int i, ret = 0;
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) {
 +        const struct section *section = &sections[i];
 +        if (!strcmp(section_name, section->name) ||
 +            (section->unique_name && !strcmp(section_name, section->unique_name))) {
 +            av_log(NULL, AV_LOG_DEBUG,
 +                   "'%s' matches section with unique name '%s'\n", section_name,
 +                   (char *)av_x_if_null(section->unique_name, section->name));
 +            ret++;
 +            mark_section_show_entries(section->id, show_all_entries, entries);
 +        }
 +    }
 +    return ret;
 +}
 +
 +static int opt_show_entries(void *optctx, const char *opt, const char *arg)
 +{
 +    const char *p = arg;
 +    int ret = 0;
 +
 +    while (*p) {
 +        AVDictionary *entries = NULL;
 +        char *section_name = av_get_token(&p, "=:");
 +        int show_all_entries = 0;
 +
 +        if (!section_name) {
 +            av_log(NULL, AV_LOG_ERROR,
 +                   "Missing section name for option '%s'\n", opt);
 +            return AVERROR(EINVAL);
 +        }
 +
 +        if (*p == '=') {
 +            p++;
 +            while (*p && *p != ':') {
 +                char *entry = av_get_token(&p, ",:");
 +                if (!entry)
 +                    break;
 +                av_log(NULL, AV_LOG_VERBOSE,
 +                       "Adding '%s' to the entries to show in section '%s'\n",
 +                       entry, section_name);
 +                av_dict_set(&entries, entry, "", AV_DICT_DONT_STRDUP_KEY);
 +                if (*p == ',')
 +                    p++;
 +            }
 +        } else {
 +            show_all_entries = 1;
 +        }
 +
 +        ret = match_section(section_name, show_all_entries, entries);
 +        if (ret == 0) {
 +            av_log(NULL, AV_LOG_ERROR, "No match for section '%s'\n", section_name);
 +            ret = AVERROR(EINVAL);
 +        }
 +        av_dict_free(&entries);
 +        av_free(section_name);
 +
 +        if (ret <= 0)
 +            break;
 +        if (*p)
 +            p++;
 +    }
 +
 +    return ret;
 +}
 +
 +static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
 +{
 +    char *buf = av_asprintf("format=%s", arg);
 +    int ret;
 +
 +    if (!buf)
 +        return AVERROR(ENOMEM);
 +
 +    av_log(NULL, AV_LOG_WARNING,
 +           "Option '%s' is deprecated, use '-show_entries format=%s' instead\n",
 +           opt, arg);
 +    ret = opt_show_entries(optctx, opt, buf);
 +    av_free(buf);
 +    return ret;
 +}
 +
 +static void opt_input_file(void *optctx, const char *arg)
 +{
 +    if (input_filename) {
 +        av_log(NULL, AV_LOG_ERROR,
 +                "Argument '%s' provided as input filename, but '%s' was already specified.\n",
 +                arg, input_filename);
 +        exit_program(1);
 +    }
 +    if (!strcmp(arg, "-"))
 +        arg = "pipe:";
 +    input_filename = arg;
 +}
 +
 +static int opt_input_file_i(void *optctx, const char *opt, const char *arg)
 +{
 +    opt_input_file(optctx, arg);
 +    return 0;
 +}
 +
 +void show_help_default(const char *opt, const char *arg)
 +{
 +    av_log_set_callback(log_callback_help);
 +    show_usage();
 +    show_help_options(options, "Main options:", 0, 0, 0);
 +    printf("\n");
 +
 +    show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
 +}
 +
 +/**
 + * Parse interval specification, according to the format:
 + * INTERVAL ::= [START|+START_OFFSET][%[END|+END_OFFSET]]
 + * INTERVALS ::= INTERVAL[,INTERVALS]
 +*/
 +static int parse_read_interval(const char *interval_spec,
 +                               ReadInterval *interval)
 +{
 +    int ret = 0;
 +    char *next, *p, *spec = av_strdup(interval_spec);
 +    if (!spec)
 +        return AVERROR(ENOMEM);
 +
 +    if (!*spec) {
 +        av_log(NULL, AV_LOG_ERROR, "Invalid empty interval specification\n");
 +        ret = AVERROR(EINVAL);
 +        goto end;
 +    }
 +
 +    p = spec;
 +    next = strchr(spec, '%');
 +    if (next)
 +        *next++ = 0;
 +
 +    /* parse first part */
 +    if (*p) {
 +        interval->has_start = 1;
 +
 +        if (*p == '+') {
 +            interval->start_is_offset = 1;
 +            p++;
 +        } else {
 +            interval->start_is_offset = 0;
 +        }
 +
 +        ret = av_parse_time(&interval->start, p, 1);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Invalid interval start specification '%s'\n", p);
 +            goto end;
 +        }
 +    } else {
 +        interval->has_start = 0;
 +    }
 +
 +    /* parse second part */
 +    p = next;
 +    if (p && *p) {
 +        int64_t us;
 +        interval->has_end = 1;
 +
 +        if (*p == '+') {
 +            interval->end_is_offset = 1;
 +            p++;
 +        } else {
 +            interval->end_is_offset = 0;
 +        }
 +
 +        if (interval->end_is_offset && *p == '#') {
 +            long long int lli;
 +            char *tail;
 +            interval->duration_frames = 1;
 +            p++;
 +            lli = strtoll(p, &tail, 10);
 +            if (*tail || lli < 0) {
 +                av_log(NULL, AV_LOG_ERROR,
 +                       "Invalid or negative value '%s' for duration number of frames\n", p);
 +                goto end;
 +            }
 +            interval->end = lli;
 +        } else {
 +            ret = av_parse_time(&us, p, 1);
 +            if (ret < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "Invalid interval end/duration specification '%s'\n", p);
 +                goto end;
 +            }
 +            interval->end = us;
 +        }
 +    } else {
 +        interval->has_end = 0;
 +    }
 +
 +end:
 +    av_free(spec);
 +    return ret;
 +}
 +
 +static int parse_read_intervals(const char *intervals_spec)
 +{
 +    int ret, n, i;
 +    char *p, *spec = av_strdup(intervals_spec);
 +    if (!spec)
 +        return AVERROR(ENOMEM);
 +
 +    /* preparse specification, get number of intervals */
 +    for (n = 0, p = spec; *p; p++)
 +        if (*p == ',')
 +            n++;
 +    n++;
 +
 +    read_intervals = av_malloc_array(n, sizeof(*read_intervals));
 +    if (!read_intervals) {
 +        ret = AVERROR(ENOMEM);
 +        goto end;
 +    }
 +    read_intervals_nb = n;
 +
 +    /* parse intervals */
 +    p = spec;
 +    for (i = 0; p; i++) {
 +        char *next;
 +
 +        av_assert0(i < read_intervals_nb);
 +        next = strchr(p, ',');
 +        if (next)
 +            *next++ = 0;
 +
 +        read_intervals[i].id = i;
 +        ret = parse_read_interval(p, &read_intervals[i]);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error parsing read interval #%d '%s'\n",
 +                   i, p);
 +            goto end;
 +        }
 +        av_log(NULL, AV_LOG_VERBOSE, "Parsed log interval ");
 +        log_read_interval(&read_intervals[i], NULL, AV_LOG_VERBOSE);
 +        p = next;
 +    }
 +    av_assert0(i == read_intervals_nb);
 +
 +end:
 +    av_free(spec);
 +    return ret;
 +}
 +
 +static int opt_read_intervals(void *optctx, const char *opt, const char *arg)
 +{
 +    return parse_read_intervals(arg);
 +}
 +
 +static int opt_pretty(void *optctx, const char *opt, const char *arg)
 +{
 +    show_value_unit              = 1;
 +    use_value_prefix             = 1;
 +    use_byte_value_binary_prefix = 1;
 +    use_value_sexagesimal_format = 1;
 +    return 0;
 +}
 +
 +static void print_section(SectionID id, int level)
 +{
 +    const SectionID *pid;
 +    const struct section *section = &sections[id];
 +    printf("%c%c%c",
 +           section->flags & SECTION_FLAG_IS_WRAPPER           ? 'W' : '.',
 +           section->flags & SECTION_FLAG_IS_ARRAY             ? 'A' : '.',
 +           section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS  ? 'V' : '.');
 +    printf("%*c  %s", level * 4, ' ', section->name);
 +    if (section->unique_name)
 +        printf("/%s", section->unique_name);
 +    printf("\n");
 +
 +    for (pid = section->children_ids; *pid != -1; pid++)
 +        print_section(*pid, level+1);
 +}
 +
 +static int opt_sections(void *optctx, const char *opt, const char *arg)
 +{
 +    printf("Sections:\n"
 +           "W.. = Section is a wrapper (contains other sections, no local entries)\n"
 +           ".A. = Section contains an array of elements of the same type\n"
 +           "..V = Section may contain a variable number of fields with variable keys\n"
 +           "FLAGS NAME/UNIQUE_NAME\n"
 +           "---\n");
 +    print_section(SECTION_ID_ROOT, 0);
 +    return 0;
 +}
 +
 +static int opt_show_versions(const char *opt, const char *arg)
 +{
 +    mark_section_show_entries(SECTION_ID_PROGRAM_VERSION, 1, NULL);
 +    mark_section_show_entries(SECTION_ID_LIBRARY_VERSION, 1, NULL);
 +    return 0;
 +}
 +
 +#define DEFINE_OPT_SHOW_SECTION(section, target_section_id)             \
 +    static int opt_show_##section(const char *opt, const char *arg)     \
 +    {                                                                   \
 +        mark_section_show_entries(SECTION_ID_##target_section_id, 1, NULL); \
 +        return 0;                                                       \
 +    }
 +
 +DEFINE_OPT_SHOW_SECTION(chapters,         CHAPTERS)
 +DEFINE_OPT_SHOW_SECTION(error,            ERROR)
 +DEFINE_OPT_SHOW_SECTION(format,           FORMAT)
 +DEFINE_OPT_SHOW_SECTION(frames,           FRAMES)
 +DEFINE_OPT_SHOW_SECTION(library_versions, LIBRARY_VERSIONS)
 +DEFINE_OPT_SHOW_SECTION(packets,          PACKETS)
 +DEFINE_OPT_SHOW_SECTION(pixel_formats,    PIXEL_FORMATS)
 +DEFINE_OPT_SHOW_SECTION(program_version,  PROGRAM_VERSION)
 +DEFINE_OPT_SHOW_SECTION(streams,          STREAMS)
 +DEFINE_OPT_SHOW_SECTION(programs,         PROGRAMS)
 +
 +static const OptionDef real_options[] = {
 +#include "cmdutils_common_opts.h"
 +    { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" },
 +    { "unit", OPT_BOOL, {&show_value_unit}, "show unit of the displayed values" },
 +    { "prefix", OPT_BOOL, {&use_value_prefix}, "use SI prefixes for the displayed values" },
 +    { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix},
 +      "use binary prefixes for byte units" },
 +    { "sexagesimal", OPT_BOOL,  {&use_value_sexagesimal_format},
 +      "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
 +    { "pretty", 0, {.func_arg = opt_pretty},
 +      "prettify the format of displayed values, make it more human readable" },
 +    { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format},
 +      "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" },
 +    { "of", OPT_STRING | HAS_ARG, {(void*)&print_format}, "alias for -print_format", "format" },
 +    { "select_streams", OPT_STRING | HAS_ARG, {(void*)&stream_specifier}, "select the specified streams", "stream_specifier" },
 +    { "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" },
 +    { "show_data",    OPT_BOOL, {(void*)&do_show_data}, "show packets data" },
 +    { "show_data_hash", OPT_STRING | HAS_ARG, {(void*)&show_data_hash}, "show packets data hash" },
 +    { "show_error",   0, {(void*)&opt_show_error},  "show probing error" },
 +    { "show_format",  0, {(void*)&opt_show_format}, "show format/container info" },
 +    { "show_frames",  0, {(void*)&opt_show_frames}, "show frames info" },
 +    { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry},
 +      "show a particular entry from the format/container info", "entry" },
 +    { "show_entries", HAS_ARG, {.func_arg = opt_show_entries},
 +      "show a set of specified entries", "entry_list" },
 +    { "show_packets", 0, {(void*)&opt_show_packets}, "show packets info" },
 +    { "show_programs", 0, {(void*)&opt_show_programs}, "show programs info" },
 +    { "show_streams", 0, {(void*)&opt_show_streams}, "show streams info" },
 +    { "show_chapters", 0, {(void*)&opt_show_chapters}, "show chapters info" },
 +    { "count_frames", OPT_BOOL, {(void*)&do_count_frames}, "count the number of frames per stream" },
 +    { "count_packets", OPT_BOOL, {(void*)&do_count_packets}, "count the number of packets per stream" },
 +    { "show_program_version",  0, {(void*)&opt_show_program_version},  "show ffprobe version" },
 +    { "show_library_versions", 0, {(void*)&opt_show_library_versions}, "show library versions" },
 +    { "show_versions",         0, {(void*)&opt_show_versions}, "show program and library versions" },
 +    { "show_pixel_formats", 0, {(void*)&opt_show_pixel_formats}, "show pixel format descriptions" },
 +    { "show_private_data", OPT_BOOL, {(void*)&show_private_data}, "show private data" },
 +    { "private",           OPT_BOOL, {(void*)&show_private_data}, "same as show_private_data" },
 +    { "bitexact", OPT_BOOL, {&do_bitexact}, "force bitexact output" },
 +    { "read_intervals", HAS_ARG, {.func_arg = opt_read_intervals}, "set read intervals", "read_intervals" },
 +    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" },
 +    { "i", HAS_ARG, {.func_arg = opt_input_file_i}, "read specified file", "input_file"},
 +    { NULL, },
 +};
 +
 +static inline int check_section_show_entries(int section_id)
 +{
 +    int *id;
 +    struct section *section = &sections[section_id];
 +    if (sections[section_id].show_all_entries || sections[section_id].entries_to_show)
 +        return 1;
 +    for (id = section->children_ids; *id != -1; id++)
 +        if (check_section_show_entries(*id))
 +            return 1;
 +    return 0;
 +}
 +
 +#define SET_DO_SHOW(id, varname) do {                                   \
 +        if (check_section_show_entries(SECTION_ID_##id))                \
 +            do_show_##varname = 1;                                      \
 +    } while (0)
 +
 +int main(int argc, char **argv)
 +{
 +    const Writer *w;
 +    WriterContext *wctx;
 +    char *buf;
 +    char *w_name = NULL, *w_args = NULL;
 +    int ret, i;
 +
 +    av_log_set_flags(AV_LOG_SKIP_REPEATED);
 +    register_exit(ffprobe_cleanup);
 +
 +    options = real_options;
 +    parse_loglevel(argc, argv, options);
 +    av_register_all();
 +    avformat_network_init();
 +    init_opts();
 +#if CONFIG_AVDEVICE
 +    avdevice_register_all();
 +#endif
 +
 +    show_banner(argc, argv, options);
 +    parse_options(NULL, argc, argv, options, opt_input_file);
 +
 +    /* mark things to show, based on -show_entries */
 +    SET_DO_SHOW(CHAPTERS, chapters);
 +    SET_DO_SHOW(ERROR, error);
 +    SET_DO_SHOW(FORMAT, format);
 +    SET_DO_SHOW(FRAMES, frames);
 +    SET_DO_SHOW(LIBRARY_VERSIONS, library_versions);
 +    SET_DO_SHOW(PACKETS, packets);
 +    SET_DO_SHOW(PIXEL_FORMATS, pixel_formats);
 +    SET_DO_SHOW(PIXEL_FORMAT_FLAGS, pixel_format_flags);
 +    SET_DO_SHOW(PIXEL_FORMAT_COMPONENTS, pixel_format_components);
 +    SET_DO_SHOW(PROGRAM_VERSION, program_version);
 +    SET_DO_SHOW(PROGRAMS, programs);
 +    SET_DO_SHOW(STREAMS, streams);
 +    SET_DO_SHOW(STREAM_DISPOSITION, stream_disposition);
 +    SET_DO_SHOW(PROGRAM_STREAM_DISPOSITION, stream_disposition);
 +
 +    SET_DO_SHOW(CHAPTER_TAGS, chapter_tags);
 +    SET_DO_SHOW(FORMAT_TAGS, format_tags);
 +    SET_DO_SHOW(FRAME_TAGS, frame_tags);
 +    SET_DO_SHOW(PROGRAM_TAGS, program_tags);
 +    SET_DO_SHOW(STREAM_TAGS, stream_tags);
 +    SET_DO_SHOW(PACKET_TAGS, packet_tags);
 +
 +    if (do_bitexact && (do_show_program_version || do_show_library_versions)) {
 +        av_log(NULL, AV_LOG_ERROR,
 +               "-bitexact and -show_program_version or -show_library_versions "
 +               "options are incompatible\n");
 +        ret = AVERROR(EINVAL);
 +        goto end;
 +    }
 +
 +    writer_register_all();
 +
 +    if (!print_format)
 +        print_format = av_strdup("default");
 +    if (!print_format) {
 +        ret = AVERROR(ENOMEM);
 +        goto end;
 +    }
 +    w_name = av_strtok(print_format, "=", &buf);
 +    w_args = buf;
 +
 +    if (show_data_hash) {
 +        if ((ret = av_hash_alloc(&hash, show_data_hash)) < 0) {
 +            if (ret == AVERROR(EINVAL)) {
 +                const char *n;
 +                av_log(NULL, AV_LOG_ERROR,
 +                       "Unknown hash algorithm '%s'\nKnown algorithms:",
 +                       show_data_hash);
 +                for (i = 0; (n = av_hash_names(i)); i++)
 +                    av_log(NULL, AV_LOG_ERROR, " %s", n);
 +                av_log(NULL, AV_LOG_ERROR, "\n");
 +            }
 +            goto end;
 +        }
 +    }
 +
 +    w = writer_get_by_name(w_name);
 +    if (!w) {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name);
 +        ret = AVERROR(EINVAL);
 +        goto end;
 +    }
 +
 +    if ((ret = writer_open(&wctx, w, w_args,
 +                           sections, FF_ARRAY_ELEMS(sections))) >= 0) {
 +        if (w == &xml_writer)
 +            wctx->string_validation_utf8_flags |= AV_UTF8_FLAG_EXCLUDE_XML_INVALID_CONTROL_CODES;
 +
 +        writer_print_section_header(wctx, SECTION_ID_ROOT);
 +
 +        if (do_show_program_version)
 +            ffprobe_show_program_version(wctx);
 +        if (do_show_library_versions)
 +            ffprobe_show_library_versions(wctx);
 +        if (do_show_pixel_formats)
 +            ffprobe_show_pixel_formats(wctx);
 +
 +        if (!input_filename &&
 +            ((do_show_format || do_show_programs || do_show_streams || do_show_chapters || do_show_packets || do_show_error) ||
 +             (!do_show_program_version && !do_show_library_versions && !do_show_pixel_formats))) {
 +            show_usage();
 +            av_log(NULL, AV_LOG_ERROR, "You have to specify one input file.\n");
 +            av_log(NULL, AV_LOG_ERROR, "Use -h to get full help or, even better, run 'man %s'.\n", program_name);
 +            ret = AVERROR(EINVAL);
 +        } else if (input_filename) {
 +            ret = probe_file(wctx, input_filename);
 +            if (ret < 0 && do_show_error)
 +                show_error(wctx, ret);
 +        }
 +
 +        writer_print_section_footer(wctx);
 +        writer_close(&wctx);
 +    }
 +
 +end:
 +    av_freep(&print_format);
 +    av_freep(&read_intervals);
 +    av_hash_freep(&hash);
 +
 +    uninit_opts();
 +    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
 +        av_dict_free(&(sections[i].entries_to_show));
 +
 +    avformat_network_deinit();
 +
 +    return ret < 0;
 +}



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