Data Structures | Defines | Functions | Variables

libavformat/asfenc.c File Reference

#include "avformat.h"
#include "internal.h"
#include "riff.h"
#include "asf.h"
#include "avio_internal.h"
#include "libavutil/dict.h"
#include <assert.h>

Go to the source code of this file.

Data Structures

struct  ASFContext

Defines

#define ASF_INDEXED_INTERVAL   10000000
#define ASF_INDEX_BLOCK   600
#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 PREROLL_TIME   3100

Functions

static void put_guid (AVIOContext *s, const ff_asf_guid *g)
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 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 int sendtime, unsigned int duration, int nb_payloads, int padsize)
static void flush_packet (AVFormatContext *s)
static void put_payload_header (AVFormatContext *s, ASFStream *stream, int 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, int timestamp, const uint8_t *buf, int m_obj_size, int flags)
static int asf_write_packet (AVFormatContext *s, AVPacket *pkt)
static int asf_write_index (AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count)
static int asf_write_trailer (AVFormatContext *s)

Variables

static const AVCodecTag codec_asf_bmp_tags []
AVOutputFormat ff_asf_muxer
AVOutputFormat ff_asf_stream_muxer

Define Documentation

#define ASF_INDEX_BLOCK   600

Definition at line 33 of file asfenc.c.

Referenced by asf_write_header().

#define ASF_INDEXED_INTERVAL   10000000

Definition at line 32 of file asfenc.c.

Referenced by asf_write_index().

#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2

Definition at line 35 of file asfenc.c.

#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 42 of file asfenc.c.

#define ASF_PAYLOAD_FLAGS   ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD

Definition at line 56 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PAYLOAD_LENGTH_FIELD_SIZE   2

Definition at line 141 of file asfenc.c.

#define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   1

Definition at line 125 of file asfenc.c.

#define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   4

Definition at line 118 of file asfenc.c.

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH   0x08

Definition at line 161 of file asfenc.c.

Referenced by put_payload_header().

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   1

Definition at line 99 of file asfenc.c.

#define ASF_PPI_LENGTH_TYPE_FLAGS   0

Definition at line 54 of file asfenc.c.

#define ASF_PPI_PACKET_LENGTH_FIELD_SIZE   0

Definition at line 82 of file asfenc.c.

#define ASF_PPI_PADDING_LENGTH_FIELD_SIZE   0

Definition at line 95 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 47 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PPI_SEQUENCE_FIELD_SIZE   0

Definition at line 68 of file asfenc.c.

#define MULTI_PAYLOAD_CONSTANT
Value:
(\
                PACKET_SIZE - \
                PACKET_HEADER_MIN_SIZE - \
                1 - /*Payload Flags*/ \
                2*PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \
                )

Definition at line 186 of file asfenc.c.

Referenced by put_frame().

#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 147 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 171 of file asfenc.c.

Referenced by put_frame().

#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 163 of file asfenc.c.

#define PREROLL_TIME   3100

Definition at line 225 of file asfenc.c.

Referenced by asf_write_header1(), and put_frame().

#define SINGLE_PAYLOAD_DATA_LENGTH
Value:
(\
                PACKET_SIZE - \
                PACKET_HEADER_MIN_SIZE - \
                PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \
                )

Definition at line 180 of file asfenc.c.

Function Documentation

static int asf_write_header ( AVFormatContext *  s  )  [static]

Definition at line 553 of file asfenc.c.

Referenced by asf_write_stream_header().

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

Definition at line 296 of file asfenc.c.

Referenced by asf_write_header(), and asf_write_trailer().

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

Definition at line 831 of file asfenc.c.

Referenced by asf_write_trailer().

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

Definition at line 785 of file asfenc.c.

static int asf_write_stream_header ( AVFormatContext *  s  )  [static]

Definition at line 585 of file asfenc.c.

static int asf_write_trailer ( AVFormatContext *  s  )  [static]

Definition at line 850 of file asfenc.c.

static void end_header ( AVIOContext *  pb,
int64_t  pos 
) [static]

Definition at line 259 of file asfenc.c.

Referenced by asf_write_header1().

static void flush_packet ( AVFormatContext *  s  )  [static]

Definition at line 647 of file asfenc.c.

Referenced by asf_write_trailer(), and put_frame().

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

Definition at line 270 of file asfenc.c.

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

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

Definition at line 718 of file asfenc.c.

Referenced by asf_write_packet().

static void put_guid ( AVIOContext *  s,
const ff_asf_guid *  g 
) [static]

Definition at line 227 of file asfenc.c.

Referenced by asf_write_header1(), asf_write_index(), and put_header().

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

Definition at line 248 of file asfenc.c.

Referenced by asf_write_header1().

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

Definition at line 681 of file asfenc.c.

Referenced by put_frame().

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

Definition at line 594 of file asfenc.c.

Referenced by flush_packet().

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

Definition at line 233 of file asfenc.c.

Referenced by asf_write_header1().

static int64_t unix_to_file_time ( int  ti  )  [static]

Definition at line 286 of file asfenc.c.

Referenced by asf_write_header1().

Variable Documentation

const AVCodecTag codec_asf_bmp_tags[] [static]
Initial value:
 {
    { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
    { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
    { CODEC_ID_NONE, 0 },
}

Definition at line 218 of file asfenc.c.

AVOutputFormat ff_asf_muxer
Initial value:
 {
    .name           = "asf",
    .long_name      = NULL_IF_CONFIG_SMALL("ASF format"),
    .mime_type      = "video/x-ms-asf",
    .extensions     = "asf,wmv,wma",
    .priv_data_size = sizeof(ASFContext),

    .audio_codec    = CODEC_ID_MP3,



    .video_codec    = CODEC_ID_MSMPEG4V3,
    .write_header   = asf_write_header,
    .write_packet   = asf_write_packet,
    .write_trailer  = asf_write_trailer,
    .flags = AVFMT_GLOBALHEADER,
    .codec_tag= (const AVCodecTag* const []){codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0},
}

Definition at line 881 of file asfenc.c.

AVOutputFormat ff_asf_stream_muxer
Initial value:
 {
    .name           = "asf_stream",
    .long_name      = NULL_IF_CONFIG_SMALL("ASF format"),
    .mime_type      = "video/x-ms-asf",
    .extensions     = "asf,wmv,wma",
    .priv_data_size = sizeof(ASFContext),

    .audio_codec    = CODEC_ID_MP3,



    .video_codec    = CODEC_ID_MSMPEG4V3,
    .write_header   = asf_write_stream_header,
    .write_packet   = asf_write_packet,
    .write_trailer  = asf_write_trailer,
    .flags = AVFMT_GLOBALHEADER,
    .codec_tag= (const AVCodecTag* const []){codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0},
}

Definition at line 902 of file asfenc.c.