FFmpeg
Data Structures | Macros | Functions | Variables
extract_extradata.c File Reference
#include <stdint.h>
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "av1.h"
#include "av1_parse.h"
#include "bsf.h"
#include "bsf_internal.h"
#include "bytestream.h"
#include "h2645_parse.h"
#include "h264.h"
#include "hevc.h"
#include "startcode.h"
#include "vc1_common.h"
#include "vvc.h"

Go to the source code of this file.

Data Structures

struct  ExtractExtradataContext
 

Macros

#define OFFSET(x)   offsetof(ExtractExtradataContext, x)
 
#define FLAGS   (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
 

Functions

static int val_in_array (const int *arr, size_t len, int val)
 
static int metadata_is_global (const AV1OBU *obu)
 
static int obu_is_global (const AV1OBU *obu)
 
static int extract_extradata_av1 (AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
 
static int extract_extradata_h2645 (AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
 
static int extract_extradata_vc1 (AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
 
static int extract_extradata_mpeg12 (AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
 
static int extract_extradata_mpeg4 (AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
 
static int extract_extradata_init (AVBSFContext *ctx)
 
static int extract_extradata_filter (AVBSFContext *ctx, AVPacket *pkt)
 
static void extract_extradata_close (AVBSFContext *ctx)
 

Variables

struct {
   enum AVCodecID   id
 
   int(*   extract )(AVBSFContext *ctx, AVPacket
      *pkt, uint8_t **data, int
      *size)
 
} extract_tab []
 
static enum AVCodecID codec_ids []
 
static const AVOption options []
 
static const AVClass extract_extradata_class
 
const FFBitStreamFilter ff_extract_extradata_bsf
 

Macro Definition Documentation

◆ OFFSET

#define OFFSET (   x)    offsetof(ExtractExtradataContext, x)

Definition at line 451 of file extract_extradata.c.

◆ FLAGS

#define FLAGS   (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)

Definition at line 452 of file extract_extradata.c.

Function Documentation

◆ val_in_array()

static int val_in_array ( const int *  arr,
size_t  len,
int  val 
)
static

Definition at line 53 of file extract_extradata.c.

Referenced by extract_extradata_h2645(), metadata_is_global(), and obu_is_global().

◆ metadata_is_global()

static int metadata_is_global ( const AV1OBU *  obu)
static

Definition at line 61 of file extract_extradata.c.

Referenced by obu_is_global().

◆ obu_is_global()

static int obu_is_global ( const AV1OBU *  obu)
static

Definition at line 78 of file extract_extradata.c.

Referenced by extract_extradata_av1().

◆ extract_extradata_av1()

static int extract_extradata_av1 ( AVBSFContext *  ctx,
AVPacket *  pkt,
uint8_t **  data,
int *  size 
)
static

Definition at line 93 of file extract_extradata.c.

◆ extract_extradata_h2645()

static int extract_extradata_h2645 ( AVBSFContext *  ctx,
AVPacket *  pkt,
uint8_t **  data,
int *  size 
)
static

Definition at line 163 of file extract_extradata.c.

◆ extract_extradata_vc1()

static int extract_extradata_vc1 ( AVBSFContext *  ctx,
AVPacket *  pkt,
uint8_t **  data,
int *  size 
)
static

Definition at line 269 of file extract_extradata.c.

◆ extract_extradata_mpeg12()

static int extract_extradata_mpeg12 ( AVBSFContext *  ctx,
AVPacket *  pkt,
uint8_t **  data,
int *  size 
)
static

Definition at line 304 of file extract_extradata.c.

◆ extract_extradata_mpeg4()

static int extract_extradata_mpeg4 ( AVBSFContext *  ctx,
AVPacket *  pkt,
uint8_t **  data,
int *  size 
)
static

Definition at line 333 of file extract_extradata.c.

◆ extract_extradata_init()

static int extract_extradata_init ( AVBSFContext *  ctx)
static

Definition at line 380 of file extract_extradata.c.

◆ extract_extradata_filter()

static int extract_extradata_filter ( AVBSFContext *  ctx,
AVPacket *  pkt 
)
static

Definition at line 397 of file extract_extradata.c.

◆ extract_extradata_close()

static void extract_extradata_close ( AVBSFContext *  ctx)
static

Definition at line 429 of file extract_extradata.c.

Variable Documentation

◆ id

enum AVCodecID id

Definition at line 363 of file extract_extradata.c.

◆ extract

int(* extract) (AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)

Definition at line 364 of file extract_extradata.c.

◆ extract_tab

const { ... } extract_tab[]
Initial value:
= {
{ AV_CODEC_ID_AV1, extract_extradata_av1 },
{ AV_CODEC_ID_AVS2, extract_extradata_mpeg4 },
{ AV_CODEC_ID_AVS3, extract_extradata_mpeg4 },
{ AV_CODEC_ID_CAVS, extract_extradata_mpeg4 },
{ AV_CODEC_ID_H264, extract_extradata_h2645 },
{ AV_CODEC_ID_HEVC, extract_extradata_h2645 },
{ AV_CODEC_ID_MPEG1VIDEO, extract_extradata_mpeg12 },
{ AV_CODEC_ID_MPEG2VIDEO, extract_extradata_mpeg12 },
{ AV_CODEC_ID_MPEG4, extract_extradata_mpeg4 },
{ AV_CODEC_ID_VC1, extract_extradata_vc1 },
{ AV_CODEC_ID_VVC, extract_extradata_h2645 },
}

Referenced by extract_extradata_init().

◆ codec_ids

enum AVCodecID codec_ids[]
static
Initial value:
= {
AV_CODEC_ID_AV1,
AV_CODEC_ID_AVS2,
AV_CODEC_ID_AVS3,
AV_CODEC_ID_CAVS,
AV_CODEC_ID_H264,
AV_CODEC_ID_HEVC,
AV_CODEC_ID_MPEG1VIDEO,
AV_CODEC_ID_MPEG2VIDEO,
AV_CODEC_ID_MPEG4,
AV_CODEC_ID_VC1,
AV_CODEC_ID_VVC,
AV_CODEC_ID_NONE,
}

Definition at line 436 of file extract_extradata.c.

◆ options

const AVOption options[]
static
Initial value:
= {
{ "remove", "remove the extradata from the bitstream", OFFSET(remove), AV_OPT_TYPE_INT,
{ .i64 = 0 }, 0, 1, FLAGS },
{ NULL },
}

Definition at line 453 of file extract_extradata.c.

◆ extract_extradata_class

const AVClass extract_extradata_class
static
Initial value:
= {
.class_name = "extract_extradata",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
}

Definition at line 459 of file extract_extradata.c.

◆ ff_extract_extradata_bsf

const FFBitStreamFilter ff_extract_extradata_bsf
Initial value:
= {
.p.name = "extract_extradata",
.p.codec_ids = codec_ids,
.p.priv_class = &extract_extradata_class,
.priv_data_size = sizeof(ExtractExtradataContext),
.init = extract_extradata_init,
.filter = extract_extradata_filter,
.close = extract_extradata_close,
}

Definition at line 466 of file extract_extradata.c.

extract_extradata_h2645
static int extract_extradata_h2645(AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
Definition: extract_extradata.c:163
OFFSET
#define OFFSET(x)
Definition: extract_extradata.c:451
extract_extradata_vc1
static int extract_extradata_vc1(AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
Definition: extract_extradata.c:269
AV_CODEC_ID_MPEG4
@ AV_CODEC_ID_MPEG4
Definition: codec_id.h:64
extract_extradata_class
static const AVClass extract_extradata_class
Definition: extract_extradata.c:459
AV_CODEC_ID_AVS2
@ AV_CODEC_ID_AVS2
Definition: codec_id.h:246
extract_extradata_mpeg12
static int extract_extradata_mpeg12(AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
Definition: extract_extradata.c:304
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
extract_extradata_close
static void extract_extradata_close(AVBSFContext *ctx)
Definition: extract_extradata.c:429
extract_extradata_mpeg4
static int extract_extradata_mpeg4(AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
Definition: extract_extradata.c:333
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:79
AV_CODEC_ID_AVS3
@ AV_CODEC_ID_AVS3
Definition: codec_id.h:248
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
AV_CODEC_ID_AV1
@ AV_CODEC_ID_AV1
Definition: codec_id.h:280
codec_ids
static enum AVCodecID codec_ids[]
Definition: extract_extradata.c:436
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
extract_extradata_filter
static int extract_extradata_filter(AVBSFContext *ctx, AVPacket *pkt)
Definition: extract_extradata.c:397
AV_CODEC_ID_MPEG1VIDEO
@ AV_CODEC_ID_MPEG1VIDEO
Definition: codec_id.h:53
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:366
extract_extradata_init
static int extract_extradata_init(AVBSFContext *ctx)
Definition: extract_extradata.c:380
options
static const AVOption options[]
Definition: extract_extradata.c:453
AV_CODEC_ID_VVC
@ AV_CODEC_ID_VVC
Definition: codec_id.h:250
FLAGS
#define FLAGS
Definition: extract_extradata.c:452
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:50
AV_CODEC_ID_CAVS
@ AV_CODEC_ID_CAVS
Definition: codec_id.h:139
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition: codec_id.h:226
AV_CODEC_ID_VC1
@ AV_CODEC_ID_VC1
Definition: codec_id.h:122
extract_extradata_av1
static int extract_extradata_av1(AVBSFContext *ctx, AVPacket *pkt, uint8_t **data, int *size)
Definition: extract_extradata.c:93
ExtractExtradataContext
Definition: extract_extradata.c:37
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:235
AV_CODEC_ID_MPEG2VIDEO
@ AV_CODEC_ID_MPEG2VIDEO
preferred ID for MPEG-1/2 video decoding
Definition: codec_id.h:54
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