asfenc.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "riff.h"
#include "asf.h"

Go to the source code of this file.

Data Structures
struct	ASFContext

Macros
#define	ASF_INDEXED_INTERVAL   10000000
#define	ASF_INDEX_BLOCK   (1<<9)
#define	ASF_PAYLOADS_PER_PACKET   63
#define	ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2
#define	ASF_PACKET_ERROR_CORRECTION_FLAGS
#define	ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE   1
#define	ASF_PPI_PROPERTY_FLAGS
#define	ASF_PPI_LENGTH_TYPE_FLAGS   0
#define	ASF_PAYLOAD_FLAGS   ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD
#define	ASF_PPI_SEQUENCE_FIELD_SIZE   0
#define	ASF_PPI_PACKET_LENGTH_FIELD_SIZE   0
#define	ASF_PPI_PADDING_LENGTH_FIELD_SIZE   0
#define	ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   1
#define	ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   4
#define	ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   1
#define	ASF_PAYLOAD_LENGTH_FIELD_SIZE   2
#define	PACKET_HEADER_MIN_SIZE
#define	ASF_PAYLOAD_REPLICATED_DATA_LENGTH   0x08
#define	PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD
#define	PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS
#define	SINGLE_PAYLOAD_DATA_LENGTH
#define	MULTI_PAYLOAD_CONSTANT
#define	DATA_HEADER_SIZE   50
#define	PREROLL_TIME   3100

Functions
static void	put_str16 (AVIOContext *s, const char *tag)
static int64_t	put_header (AVIOContext *pb, const ff_asf_guid *g)
static void	end_header (AVIOContext *pb, int64_t pos)
static void	put_chunk (AVFormatContext *s, int type, int payload_length, int flags)
static int64_t	unix_to_file_time (int ti)
static int32_t	get_send_time (ASFContext *asf, int64_t pres_time, uint64_t *offset)
static int	asf_write_markers (AVFormatContext *s)
static int	asf_write_header1 (AVFormatContext *s, int64_t file_size, int64_t data_chunk_size)
static int	asf_write_header (AVFormatContext *s)
static int	asf_write_stream_header (AVFormatContext *s)
static int	put_payload_parsing_info (AVFormatContext *s, unsigned sendtime, unsigned duration, int nb_payloads, int padsize)
static void	flush_packet (AVFormatContext *s)
static void	put_payload_header (AVFormatContext *s, ASFStream *stream, int64_t presentation_time, int m_obj_size, int m_obj_offset, int payload_len, int flags)
static void	put_frame (AVFormatContext *s, ASFStream *stream, AVStream *avst, int64_t timestamp, const uint8_t *buf, int m_obj_size, int flags)
static int	update_index (AVFormatContext *s, int start_sec, uint32_t packet_number, uint16_t packet_count, uint64_t packet_offset)
static int	asf_write_packet (AVFormatContext *s, AVPacket *pkt)
static int	asf_write_index (AVFormatContext *s, const ASFIndex *index, uint16_t max, uint32_t count)
static int	asf_write_trailer (AVFormatContext *s)

Variables
static const AVCodecTag	codec_asf_bmp_tags []

Macro Definition Documentation

#define ASF_INDEXED_INTERVAL   10000000

Definition at line 31 of file asfenc.c.

Referenced by asf_write_index(), and asf_write_packet().

#define ASF_INDEX_BLOCK   (1<<9)

Definition at line 32 of file asfenc.c.

Referenced by asf_write_header(), and update_index().

#define ASF_PAYLOADS_PER_PACKET   63

Definition at line 33 of file asfenc.c.

Referenced by put_frame().

#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2

Definition at line 35 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PACKET_ERROR_CORRECTION_FLAGS

Value:

(ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT |    \
     ASF_PACKET_ERROR_CORRECTION_DATA_SIZE)

Definition at line 36 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE   1

Definition at line 41 of file asfenc.c.

#define ASF_PPI_PROPERTY_FLAGS

Value:

(ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE           |    \
     ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD |    \
     ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE       |    \
     ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE)

Definition at line 46 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PPI_LENGTH_TYPE_FLAGS   0

Definition at line 52 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PAYLOAD_FLAGS   ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD

Definition at line 54 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PPI_SEQUENCE_FIELD_SIZE   0

Definition at line 66 of file asfenc.c.

#define ASF_PPI_PACKET_LENGTH_FIELD_SIZE   0

Definition at line 79 of file asfenc.c.

#define ASF_PPI_PADDING_LENGTH_FIELD_SIZE   0

Definition at line 92 of file asfenc.c.

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   1

Definition at line 96 of file asfenc.c.

#define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   4

Definition at line 115 of file asfenc.c.

#define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   1

Definition at line 122 of file asfenc.c.

#define ASF_PAYLOAD_LENGTH_FIELD_SIZE   2

Definition at line 138 of file asfenc.c.

#define PACKET_HEADER_MIN_SIZE

Value:

(ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE +       \
     ASF_PACKET_ERROR_CORRECTION_DATA_SIZE +              \
     1 +        /* Length Type Flags */                   \
     1 +        /* Property Flags */                      \
     ASF_PPI_PACKET_LENGTH_FIELD_SIZE +                   \
     ASF_PPI_SEQUENCE_FIELD_SIZE +                        \
     ASF_PPI_PADDING_LENGTH_FIELD_SIZE +                  \
     4 +        /* Send Time Field */                     \
     2)         /* Duration Field */

Definition at line 144 of file asfenc.c.

Referenced by put_frame(), and put_payload_parsing_info().

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH   0x08

Definition at line 156 of file asfenc.c.

Referenced by put_payload_header().

#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD

Value:

(1 +     /* Stream Number */                          \
     ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE +         \
     ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE +    \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE +      \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH)

Definition at line 158 of file asfenc.c.

Referenced by put_frame().

#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS

Value:

(1 +        /* Stream Number */                       \
     ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE +         \
     ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE +    \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE +      \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH +                 \
     ASF_PAYLOAD_LENGTH_FIELD_SIZE)

Definition at line 165 of file asfenc.c.

Referenced by put_frame().

#define SINGLE_PAYLOAD_DATA_LENGTH

Value:

(PACKET_SIZE -                                        \
     PACKET_HEADER_MIN_SIZE -                             \
     PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)

Definition at line 173 of file asfenc.c.

Referenced by put_frame().

#define MULTI_PAYLOAD_CONSTANT

Value:

(PACKET_SIZE -                                        \
     PACKET_HEADER_MIN_SIZE -                             \
     1 -         /* Payload Flags */                      \
     2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)

Definition at line 178 of file asfenc.c.

Referenced by put_frame().

#define DATA_HEADER_SIZE   50

Definition at line 184 of file asfenc.c.

Referenced by asf_write_header(), asf_write_header1(), and get_send_time().

#define PREROLL_TIME   3100

Definition at line 221 of file asfenc.c.

Referenced by asf_write_header1(), asf_write_markers(), asf_write_packet(), and put_frame().

Function Documentation

static void put_str16 ( AVIOContext *  s, const char *  tag  )

static

Definition at line 223 of file asfenc.c.

Referenced by asf_write_header1().

static int64_t put_header ( AVIOContext *  pb, const ff_asf_guid *  g  )

static

Definition at line 238 of file asfenc.c.

Referenced by asf_write_header1(), and asf_write_markers().

static void end_header ( AVIOContext *  pb, int64_t  pos  )

static

Definition at line 249 of file asfenc.c.

Referenced by asf_write_header1(), and asf_write_markers().

static void put_chunk ( AVFormatContext *  s, int  type, int  payload_length, int  flags  )

static

Definition at line 260 of file asfenc.c.

Referenced by asf_write_header1(), asf_write_trailer(), and flush_packet().

static int64_t unix_to_file_time ( int  ti )

static

Definition at line 277 of file asfenc.c.

Referenced by asf_write_header1().

static int32_t get_send_time ( ASFContext *  asf, int64_t  pres_time, uint64_t *  offset  )

static

Definition at line 286 of file asfenc.c.

Referenced by asf_write_markers().

static int asf_write_markers ( AVFormatContext *  s )

static

Definition at line 301 of file asfenc.c.

Referenced by asf_write_header1().

static int asf_write_header1 ( AVFormatContext *  s, int64_t  file_size, int64_t  data_chunk_size  )

static

Definition at line 345 of file asfenc.c.

Referenced by asf_write_header(), and asf_write_trailer().

static int asf_write_header ( AVFormatContext *  s )

static

Definition at line 646 of file asfenc.c.

Referenced by asf_write_stream_header().

static int asf_write_stream_header ( AVFormatContext *  s )

static

Definition at line 683 of file asfenc.c.

static int put_payload_parsing_info ( AVFormatContext *  s, unsigned  sendtime, unsigned  duration, int  nb_payloads, int  padsize  )

static

Definition at line 692 of file asfenc.c.

Referenced by flush_packet().

static void flush_packet ( AVFormatContext *  s )

static

Definition at line 740 of file asfenc.c.

Referenced by asf_write_trailer(), and put_frame().

static void put_payload_header ( AVFormatContext *  s, ASFStream *  stream, int64_t  presentation_time, int  m_obj_size, int  m_obj_offset, int  payload_len, int  flags  )

static

Definition at line 771 of file asfenc.c.

Referenced by put_frame().

static void put_frame ( AVFormatContext *  s, ASFStream *  stream, AVStream *  avst, int64_t  timestamp, const uint8_t *  buf, int  m_obj_size, int  flags  )

static

Definition at line 802 of file asfenc.c.

Referenced by asf_write_packet().

static int update_index ( AVFormatContext *  s, int  start_sec, uint32_t  packet_number, uint16_t  packet_count, uint64_t  packet_offset  )

static

Definition at line 867 of file asfenc.c.

Referenced by asf_write_packet(), and asf_write_trailer().

static int asf_write_packet ( AVFormatContext *  s, AVPacket *  pkt  )

static

Definition at line 909 of file asfenc.c.

static int asf_write_index ( AVFormatContext *  s, const ASFIndex *  index, uint16_t  max, uint32_t  count  )

static

Definition at line 952 of file asfenc.c.

Referenced by asf_write_trailer().

static int asf_write_trailer ( AVFormatContext *  s )

static

Definition at line 972 of file asfenc.c.

Variable Documentation

const AVCodecTag codec_asf_bmp_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_MPEG4,     MKTAG('M', '4', 'S', '2') },
    { AV_CODEC_ID_MPEG4,     MKTAG('M', 'P', '4', 'S') },
    { AV_CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
    { AV_CODEC_ID_NONE,      0 },
}

Definition at line 214 of file asfenc.c.