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Data Structures | Macros | Functions | Variables
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"
#include <assert.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_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, 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 35 of file asfenc.c.

Referenced by asf_write_index(), and asf_write_packet().

#define ASF_INDEX_BLOCK   (1<<9)

Definition at line 36 of file asfenc.c.

Referenced by asf_write_header(), and update_index().

#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2

Definition at line 38 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 39 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE   1

Definition at line 44 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 49 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PPI_LENGTH_TYPE_FLAGS   0

Definition at line 55 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 57 of file asfenc.c.

Referenced by put_payload_parsing_info().

#define ASF_PPI_SEQUENCE_FIELD_SIZE   0

Definition at line 69 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_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   1

Definition at line 99 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_MEDIA_OBJECT_NUMBER_FIELD_SIZE   1

Definition at line 125 of file asfenc.c.

#define ASF_PAYLOAD_LENGTH_FIELD_SIZE   2

Definition at line 141 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 147 of file asfenc.c.

Referenced by put_frame(), and put_payload_parsing_info().

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH   0x08

Definition at line 159 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 161 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 168 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 176 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 181 of file asfenc.c.

Referenced by put_frame().

#define DATA_HEADER_SIZE   50

Definition at line 187 of file asfenc.c.

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

#define PREROLL_TIME   3100

Definition at line 224 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 226 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 241 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 252 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 263 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 280 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 289 of file asfenc.c.

Referenced by asf_write_markers().

static int asf_write_markers ( AVFormatContext *  s)
static

Definition at line 304 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 348 of file asfenc.c.

Referenced by asf_write_header(), and asf_write_trailer().

static int asf_write_header ( AVFormatContext *  s)
static

Definition at line 609 of file asfenc.c.

Referenced by asf_write_stream_header().

static int asf_write_stream_header ( AVFormatContext *  s)
static

Definition at line 642 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 651 of file asfenc.c.

Referenced by flush_packet().

static void flush_packet ( AVFormatContext *  s)
static

Definition at line 699 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 730 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 761 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 824 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 866 of file asfenc.c.

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

Definition at line 909 of file asfenc.c.

Referenced by asf_write_trailer().

static int asf_write_trailer ( AVFormatContext *  s)
static

Definition at line 929 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 217 of file asfenc.c.

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