FFmpeg
Data Structures | Macros | Functions | Variables
asfenc.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/parseutils.h"
#include "libavutil/opt.h"
#include "avformat.h"
#include "avlanguage.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  ASFPayload
 
struct  ASFStream
 
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   0
 
#define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   0
 
#define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   0
 
#define ASF_PAYLOAD_LENGTH_FIELD_SIZE   0
 
#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_HEADERS
 
#define MULTI_PAYLOAD_HEADERS
 
#define DATA_HEADER_SIZE   50
 
#define PACKET_SIZE_MAX   65536
 
#define PACKET_SIZE_MIN   100
 
#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 (int64_t 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 []
 
static const AVOption asf_options []
 

Macro Definition Documentation

◆ ASF_INDEXED_INTERVAL

#define ASF_INDEXED_INTERVAL   10000000

Definition at line 34 of file asfenc.c.

◆ ASF_INDEX_BLOCK

#define ASF_INDEX_BLOCK   (1<<9)

Definition at line 35 of file asfenc.c.

◆ ASF_PAYLOADS_PER_PACKET

#define ASF_PAYLOADS_PER_PACKET   63

Definition at line 36 of file asfenc.c.

◆ ASF_PACKET_ERROR_CORRECTION_DATA_SIZE

#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2

Definition at line 38 of file asfenc.c.

◆ ASF_PACKET_ERROR_CORRECTION_FLAGS

#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.

◆ ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE

#define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE   1

Definition at line 44 of file asfenc.c.

◆ ASF_PPI_PROPERTY_FLAGS

#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.

◆ ASF_PPI_LENGTH_TYPE_FLAGS

#define ASF_PPI_LENGTH_TYPE_FLAGS   0

Definition at line 55 of file asfenc.c.

◆ ASF_PAYLOAD_FLAGS

#define ASF_PAYLOAD_FLAGS   ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD

Definition at line 57 of file asfenc.c.

◆ ASF_PPI_SEQUENCE_FIELD_SIZE

#define ASF_PPI_SEQUENCE_FIELD_SIZE   0

Definition at line 69 of file asfenc.c.

◆ ASF_PPI_PACKET_LENGTH_FIELD_SIZE

#define ASF_PPI_PACKET_LENGTH_FIELD_SIZE   0

Definition at line 82 of file asfenc.c.

◆ ASF_PPI_PADDING_LENGTH_FIELD_SIZE

#define ASF_PPI_PADDING_LENGTH_FIELD_SIZE   0

Definition at line 95 of file asfenc.c.

◆ ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   0

Definition at line 108 of file asfenc.c.

◆ ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE

#define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   0

Definition at line 121 of file asfenc.c.

◆ ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE

#define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   0

Definition at line 134 of file asfenc.c.

◆ ASF_PAYLOAD_LENGTH_FIELD_SIZE

#define ASF_PAYLOAD_LENGTH_FIELD_SIZE   0

Definition at line 144 of file asfenc.c.

◆ PACKET_HEADER_MIN_SIZE

#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.

◆ ASF_PAYLOAD_REPLICATED_DATA_LENGTH

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH   0x08

Definition at line 159 of file asfenc.c.

◆ PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD

#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.

◆ PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS

#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.

◆ SINGLE_PAYLOAD_HEADERS

#define SINGLE_PAYLOAD_HEADERS
Value:
(PACKET_HEADER_MIN_SIZE + \
PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)

Definition at line 176 of file asfenc.c.

◆ MULTI_PAYLOAD_HEADERS

#define MULTI_PAYLOAD_HEADERS
Value:
(PACKET_HEADER_MIN_SIZE + \
1 + /* Payload Flags */ \
2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)

Definition at line 180 of file asfenc.c.

◆ DATA_HEADER_SIZE

#define DATA_HEADER_SIZE   50

Definition at line 185 of file asfenc.c.

◆ PACKET_SIZE_MAX

#define PACKET_SIZE_MAX   65536

Definition at line 187 of file asfenc.c.

◆ PACKET_SIZE_MIN

#define PACKET_SIZE_MIN   100

Definition at line 188 of file asfenc.c.

◆ PREROLL_TIME

#define PREROLL_TIME   3100

Definition at line 262 of file asfenc.c.

Function Documentation

◆ put_str16()

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

Definition at line 264 of file asfenc.c.

Referenced by asf_write_header1().

◆ put_header()

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

Definition at line 279 of file asfenc.c.

Referenced by asf_write_header1(), and asf_write_markers().

◆ end_header()

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

Definition at line 290 of file asfenc.c.

Referenced by asf_write_header1(), and asf_write_markers().

◆ put_chunk()

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

Definition at line 301 of file asfenc.c.

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

◆ unix_to_file_time()

static int64_t unix_to_file_time ( int64_t  ti)
static

Definition at line 318 of file asfenc.c.

Referenced by asf_write_header1().

◆ get_send_time()

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

Definition at line 327 of file asfenc.c.

Referenced by asf_write_markers().

◆ asf_write_markers()

static int asf_write_markers ( AVFormatContext *  s)
static

Definition at line 342 of file asfenc.c.

Referenced by asf_write_header1().

◆ asf_write_header1()

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

Definition at line 386 of file asfenc.c.

Referenced by asf_write_header(), and asf_write_trailer().

◆ asf_write_header()

static int asf_write_header ( AVFormatContext *  s)
static

Definition at line 777 of file asfenc.c.

Referenced by asf_write_stream_header().

◆ asf_write_stream_header()

static int asf_write_stream_header ( AVFormatContext *  s)
static

Definition at line 819 of file asfenc.c.

◆ put_payload_parsing_info()

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

Definition at line 828 of file asfenc.c.

Referenced by flush_packet().

◆ flush_packet()

static void flush_packet ( AVFormatContext *  s)
static

Definition at line 876 of file asfenc.c.

Referenced by asf_write_trailer(), and put_frame().

◆ put_payload_header()

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 907 of file asfenc.c.

Referenced by put_frame().

◆ 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 938 of file asfenc.c.

Referenced by asf_write_packet().

◆ update_index()

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 1009 of file asfenc.c.

Referenced by asf_write_packet(), and asf_write_trailer().

◆ asf_write_packet()

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

Definition at line 1051 of file asfenc.c.

◆ asf_write_index()

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

Definition at line 1099 of file asfenc.c.

Referenced by asf_write_trailer().

◆ asf_write_trailer()

static int asf_write_trailer ( AVFormatContext *  s)
static

Definition at line 1119 of file asfenc.c.

Variable Documentation

◆ codec_asf_bmp_tags

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 255 of file asfenc.c.

◆ asf_options

const AVOption asf_options[]
static
Initial value:
= {
{ "packet_size", "Packet size", 0x42, AV_OPT_TYPE_INT, {.i64 = 3200}, PACKET_SIZE_MIN, PACKET_SIZE_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ NULL },
}

Definition at line 1151 of file asfenc.c.

MKTAG
#define MKTAG(a, b, c, d)
Definition: common.h:366
AV_CODEC_ID_MPEG4
@ AV_CODEC_ID_MPEG4
Definition: avcodec.h:230
ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE
#define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE
Definition: asfenc.c:44
PACKET_SIZE_MIN
#define PACKET_SIZE_MIN
Definition: asfenc.c:188
AV_OPT_FLAG_ENCODING_PARAM
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
Definition: opt.h:276
NULL
#define NULL
Definition: coverity.c:32
ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE
#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE
Definition: asf.h:145
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: avcodec.h:216
PACKET_SIZE_MAX
#define PACKET_SIZE_MAX
Definition: asfenc.c:187
PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS
#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS
Definition: asfenc.c:168
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:223
ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT
#define ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT
Definition: asf.h:108
PACKET_HEADER_MIN_SIZE
#define PACKET_HEADER_MIN_SIZE
Definition: asfenc.c:147
AV_CODEC_ID_MSMPEG4V3
@ AV_CODEC_ID_MSMPEG4V3
Definition: avcodec.h:234
Generated on Wed Aug 24 2022 21:27:44 for FFmpeg by   doxygen 1.8.17