#include <float.h>
#include <stdint.h>
#include "ffmpeg.h"
#include "ffmpeg_utils.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/display.h"
#include "libavutil/error.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/time.h"
#include "libavutil/timestamp.h"
#include "libavutil/thread.h"
#include "libavutil/threadmessage.h"
#include "libavcodec/packet.h"
#include "libavformat/avformat.h"

Data Structures
struct	DemuxStream

struct	Demuxer

struct	DemuxMsg

Macros
#define	SHOW_TS_DEBUG(tag_)

Functions
static DemuxStream *	ds_from_ist (InputStream *ist)

static Demuxer *	demuxer_from_ifile (InputFile *f)

InputStream *	ist_find_unused (enum AVMediaType type)
	Find an unused input stream of given type. More...

static void	report_new_stream (Demuxer d, const AVPacket pkt)

static int	seek_to_start (Demuxer *d)

static void	ts_discontinuity_detect (Demuxer d, InputStream ist, AVPacket *pkt)

static void	ts_discontinuity_process (Demuxer d, InputStream ist, AVPacket *pkt)

static int	ist_dts_update (DemuxStream ds, AVPacket pkt)

static int	ts_fixup (Demuxer d, AVPacket pkt)

static int	input_packet_process (Demuxer d, DemuxMsg msg, AVPacket *src)

static void	readrate_sleep (Demuxer *d)

static void	discard_unused_programs (InputFile *ifile)

static void	thread_set_name (InputFile *f)

static void *	input_thread (void *arg)

static void	thread_stop (Demuxer *d)

static int	thread_start (Demuxer *d)

int	ifile_get_packet (InputFile f, AVPacket *pkt)
	Get next input packet from the demuxer. More...

static void	demux_final_stats (Demuxer *d)

static void	ist_free (InputStream **pist)

void	ifile_close (InputFile **pf)

static int	ist_use (InputStream *ist, int decoding_needed)

int	ist_output_add (InputStream ist, OutputStream ost)

int	ist_filter_add (InputStream ist, InputFilter ifilter, int is_simple)

static int	choose_decoder (const OptionsContext o, AVFormatContext s, AVStream st, enum HWAccelID hwaccel_id, enum AVHWDeviceType hwaccel_device_type, const AVCodec *pcodec)

static int	guess_input_channel_layout (InputStream *ist, int guess_layout_max)

static int	add_display_matrix_to_stream (const OptionsContext o, AVFormatContext ctx, InputStream *ist)

static const char *	input_stream_item_name (void *obj)

static DemuxStream *	demux_stream_alloc (Demuxer d, AVStream st)

static int	ist_add (const OptionsContext o, Demuxer d, AVStream *st)

static int	dump_attachment (InputStream ist, const char filename)

static const char *	input_file_item_name (void *obj)

static Demuxer *	demux_alloc (void)

int	ifile_open (const OptionsContext o, const char filename)

Variables
static const char *const	opt_name_discard [] = {"discard", NULL}

static const char *const	opt_name_reinit_filters [] = {"reinit_filter", NULL}

static const char *const	opt_name_fix_sub_duration [] = {"fix_sub_duration", NULL}

static const char *const	opt_name_canvas_sizes [] = {"canvas_size", NULL}

static const char *const	opt_name_guess_layout_max [] = {"guess_layout_max", NULL}

static const char *const	opt_name_ts_scale [] = {"itsscale", NULL}

static const char *const	opt_name_hwaccels [] = {"hwaccel", NULL}

static const char *const	opt_name_hwaccel_devices [] = {"hwaccel_device", NULL}

static const char *const	opt_name_hwaccel_output_formats [] = {"hwaccel_output_format", NULL}

static const char *const	opt_name_autorotate [] = {"autorotate", NULL}

static const char *const	opt_name_display_rotations [] = {"display_rotation", NULL}

static const char *const	opt_name_display_hflips [] = {"display_hflip", NULL}

static const char *const	opt_name_display_vflips [] = {"display_vflip", NULL}

static const AVClass	input_stream_class

static const AVClass	input_file_class

Macro Definition Documentation

◆ SHOW_TS_DEBUG

#define SHOW_TS_DEBUG ( tag_ )

Value:

    if (debug_ts) {                                                     \
        av_log(ist, AV_LOG_INFO, "%s -> ist_index:%d:%d type:%s "       \
               "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s duration:%s duration_time:%s\n", \
               tag_, ifile->index, pkt->stream_index,                   \
               av_get_media_type_string(ist->st->codecpar->codec_type), \
               av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &pkt->time_base), \
               av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &pkt->time_base), \
               av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, &pkt->time_base)); \
    }

Function Documentation

◆ ds_from_ist()

static DemuxStream* ds_from_ist ( InputStream * ist )

static

Definition at line 123 of file ffmpeg_demux.c.

Referenced by demux_final_stats(), input_packet_process(), ist_use(), readrate_sleep(), ts_discontinuity_detect(), and ts_fixup().

◆ demuxer_from_ifile()

static Demuxer* demuxer_from_ifile ( InputFile * f )

static

Definition at line 128 of file ffmpeg_demux.c.

Referenced by ifile_close(), and ifile_get_packet().

◆ ist_find_unused()

InputStream* ist_find_unused ( enum AVMediaType type )

Find an unused input stream of given type.

Definition at line 133 of file ffmpeg_demux.c.

Referenced by init_input_filter().

◆ report_new_stream()

static void report_new_stream	(	Demuxer *	d,
		const AVPacket *	pkt
	)

static

Definition at line 143 of file ffmpeg_demux.c.

Referenced by input_thread().

◆ seek_to_start()

static int seek_to_start ( Demuxer * d )

static

Definition at line 156 of file ffmpeg_demux.c.

Referenced by input_thread().

◆ ts_discontinuity_detect()

static void ts_discontinuity_detect	(	Demuxer *	d,
		InputStream *	ist,
		AVPacket *	pkt
	)

static

Definition at line 194 of file ffmpeg_demux.c.

Referenced by ts_discontinuity_process().

◆ ts_discontinuity_process()

static void ts_discontinuity_process	(	Demuxer *	d,
		InputStream *	ist,
		AVPacket *	pkt
	)

static

Definition at line 262 of file ffmpeg_demux.c.

Referenced by ts_fixup().

◆ ist_dts_update()

static int ist_dts_update	(	DemuxStream *	ds,
		AVPacket *	pkt
	)

static

Definition at line 282 of file ffmpeg_demux.c.

Referenced by ts_fixup().

◆ ts_fixup()

static int ts_fixup	(	Demuxer *	d,
		AVPacket *	pkt
	)

static

Definition at line 352 of file ffmpeg_demux.c.

Referenced by input_packet_process().

◆ input_packet_process()

static int input_packet_process	(	Demuxer *	d,
		DemuxMsg *	msg,
		AVPacket *	src
	)

static

Definition at line 445 of file ffmpeg_demux.c.

Referenced by input_thread().

◆ readrate_sleep()

static void readrate_sleep ( Demuxer * d )

static

Definition at line 487 of file ffmpeg_demux.c.

Referenced by input_thread().

◆ discard_unused_programs()

static void discard_unused_programs ( InputFile * ifile )

static

Definition at line 507 of file ffmpeg_demux.c.

Referenced by input_thread().

◆ thread_set_name()

static void thread_set_name ( InputFile * f )

static

Definition at line 522 of file ffmpeg_demux.c.

Referenced by input_thread().

◆ input_thread()

static void* input_thread ( void * arg )

static

Definition at line 529 of file ffmpeg_demux.c.

Referenced by thread_start().

◆ thread_stop()

static void thread_stop ( Demuxer * d )

static

Definition at line 642 of file ffmpeg_demux.c.

Referenced by ifile_close().

◆ thread_start()

static int thread_start ( Demuxer * d )

static

Definition at line 658 of file ffmpeg_demux.c.

Referenced by ifile_get_packet().

◆ ifile_get_packet()

int ifile_get_packet	(	InputFile *	f,
		AVPacket **	pkt
	)

Get next input packet from the demuxer.

Parameters

pkt	the packet is written here when this function returns 0

Returns

0 when a packet has been read successfully
1 when stream end was reached, but the stream is looped; caller should flush decoders and read from this demuxer again
a negative error code on failure

Definition at line 707 of file ffmpeg_demux.c.

Referenced by process_input().

◆ demux_final_stats()

static void demux_final_stats ( Demuxer * d )

static

Definition at line 731 of file ffmpeg_demux.c.

Referenced by ifile_close().

◆ ist_free()

static void ist_free ( InputStream ** pist )

static

Definition at line 771 of file ffmpeg_demux.c.

Referenced by ifile_close().

◆ ifile_close()

void ifile_close ( InputFile ** pf )

Definition at line 791 of file ffmpeg_demux.c.

Referenced by ffmpeg_cleanup().

◆ ist_use()

static int ist_use	(	InputStream *	ist,
		int	decoding_needed
	)

static

Definition at line 813 of file ffmpeg_demux.c.

Referenced by ist_filter_add(), and ist_output_add().

◆ ist_output_add()

int ist_output_add	(	InputStream *	ist,
		OutputStream *	ost
	)

Definition at line 837 of file ffmpeg_demux.c.

Referenced by ost_add().

◆ ist_filter_add()

int ist_filter_add	(	InputStream *	ist,
		InputFilter *	ifilter,
		int	is_simple
	)

Definition at line 854 of file ffmpeg_demux.c.

Referenced by ifilter_bind_ist().

◆ choose_decoder()

static int choose_decoder	(	const OptionsContext *	o,
		AVFormatContext *	s,
		AVStream *	st,
		enum HWAccelID	hwaccel_id,
		enum AVHWDeviceType	hwaccel_device_type,
		const AVCodec **	pcodec
	)

static

Definition at line 876 of file ffmpeg_demux.c.

Referenced by ifile_open(), and ist_add().

◆ guess_input_channel_layout()

static int guess_input_channel_layout	(	InputStream *	ist,
		int	guess_layout_max
	)

static

Definition at line 922 of file ffmpeg_demux.c.

Referenced by ist_add().

◆ add_display_matrix_to_stream()

static int add_display_matrix_to_stream	(	const OptionsContext *	o,
		AVFormatContext *	ctx,
		InputStream *	ist
	)

static

Definition at line 940 of file ffmpeg_demux.c.

Referenced by ist_add().

◆ input_stream_item_name()

static const char* input_stream_item_name ( void * obj )

static

Definition at line 981 of file ffmpeg_demux.c.

◆ demux_stream_alloc()

static DemuxStream* demux_stream_alloc	(	Demuxer *	d,
		AVStream *	st
	)

static

Definition at line 995 of file ffmpeg_demux.c.

Referenced by ist_add().

◆ ist_add()

static int ist_add	(	const OptionsContext *	o,
		Demuxer *	d,
		AVStream *	st
	)

static

Definition at line 1017 of file ffmpeg_demux.c.

Referenced by ifile_open().

◆ dump_attachment()

static int dump_attachment	(	InputStream *	ist,
		const char *	filename
	)

static

Definition at line 1263 of file ffmpeg_demux.c.

Referenced by ifile_open().

◆ input_file_item_name()

static const char* input_file_item_name ( void * obj )

static

Definition at line 1301 of file ffmpeg_demux.c.

◆ demux_alloc()

static Demuxer* demux_alloc ( void )

static

Definition at line 1315 of file ffmpeg_demux.c.

Referenced by ifile_open().

◆ ifile_open()

int ifile_open	(	const OptionsContext *	o,
		const char *	filename
	)

Definition at line 1330 of file ffmpeg_demux.c.

Variable Documentation

◆ opt_name_discard

const char* const opt_name_discard[] = {"discard", NULL}

static

Definition at line 42 of file ffmpeg_demux.c.

◆ opt_name_reinit_filters

const char* const opt_name_reinit_filters[] = {"reinit_filter", NULL}

static

Definition at line 43 of file ffmpeg_demux.c.

◆ opt_name_fix_sub_duration

const char* const opt_name_fix_sub_duration[] = {"fix_sub_duration", NULL}

static

Definition at line 44 of file ffmpeg_demux.c.

◆ opt_name_canvas_sizes

const char* const opt_name_canvas_sizes[] = {"canvas_size", NULL}

static

Definition at line 45 of file ffmpeg_demux.c.

◆ opt_name_guess_layout_max

const char* const opt_name_guess_layout_max[] = {"guess_layout_max", NULL}

static

Definition at line 46 of file ffmpeg_demux.c.

◆ opt_name_ts_scale

const char* const opt_name_ts_scale[] = {"itsscale", NULL}

static

Definition at line 47 of file ffmpeg_demux.c.

◆ opt_name_hwaccels

const char* const opt_name_hwaccels[] = {"hwaccel", NULL}

static

Definition at line 48 of file ffmpeg_demux.c.

◆ opt_name_hwaccel_devices

const char* const opt_name_hwaccel_devices[] = {"hwaccel_device", NULL}

static

Definition at line 49 of file ffmpeg_demux.c.

◆ opt_name_hwaccel_output_formats

const char* const opt_name_hwaccel_output_formats[] = {"hwaccel_output_format", NULL}

static

Definition at line 50 of file ffmpeg_demux.c.

◆ opt_name_autorotate

const char* const opt_name_autorotate[] = {"autorotate", NULL}

static

Definition at line 51 of file ffmpeg_demux.c.

◆ opt_name_display_rotations

const char* const opt_name_display_rotations[] = {"display_rotation", NULL}

static

Definition at line 52 of file ffmpeg_demux.c.

◆ opt_name_display_hflips

const char* const opt_name_display_hflips[] = {"display_hflip", NULL}

static

Definition at line 53 of file ffmpeg_demux.c.

◆ opt_name_display_vflips

const char* const opt_name_display_vflips[] = {"display_vflip", NULL}

static

Definition at line 54 of file ffmpeg_demux.c.

◆ input_stream_class

const AVClass input_stream_class

static

Initial value:

= {
    .class_name = "InputStream",
    .version    = LIBAVUTIL_VERSION_INT,
    .item_name  = input_stream_item_name,
    .category   = AV_CLASS_CATEGORY_DEMUXER,
}

Definition at line 988 of file ffmpeg_demux.c.

Referenced by demux_stream_alloc().

◆ input_file_class

const AVClass input_file_class

static

Initial value:

= {
    .class_name = "InputFile",
    .version    = LIBAVUTIL_VERSION_INT,
    .item_name  = input_file_item_name,
    .category   = AV_CLASS_CATEGORY_DEMUXER,
}

Definition at line 1308 of file ffmpeg_demux.c.

Referenced by demux_alloc().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ SHOW_TS_DEBUG

Function Documentation

◆ ds_from_ist()

◆ demuxer_from_ifile()

◆ ist_find_unused()

◆ report_new_stream()

◆ seek_to_start()

◆ ts_discontinuity_detect()

◆ ts_discontinuity_process()

◆ ist_dts_update()

◆ ts_fixup()

◆ input_packet_process()

◆ readrate_sleep()

◆ discard_unused_programs()

◆ thread_set_name()

◆ input_thread()

◆ thread_stop()

◆ thread_start()

◆ ifile_get_packet()

◆ demux_final_stats()

◆ ist_free()

◆ ifile_close()

◆ ist_use()

◆ ist_output_add()

◆ ist_filter_add()

◆ choose_decoder()

◆ guess_input_channel_layout()

◆ add_display_matrix_to_stream()

◆ input_stream_item_name()

◆ demux_stream_alloc()

◆ ist_add()

◆ dump_attachment()

◆ input_file_item_name()

◆ demux_alloc()

◆ ifile_open()

Variable Documentation

◆ opt_name_discard

◆ opt_name_reinit_filters

◆ opt_name_fix_sub_duration

◆ opt_name_canvas_sizes

◆ opt_name_guess_layout_max

◆ opt_name_ts_scale

◆ opt_name_hwaccels

◆ opt_name_hwaccel_devices

◆ opt_name_hwaccel_output_formats

◆ opt_name_autorotate

◆ opt_name_display_rotations

◆ opt_name_display_hflips

◆ opt_name_display_vflips

◆ input_stream_class

◆ input_file_class