av1_frame_split.c File Reference

This bitstream filter splits AV1 Temporal Units into packets containing just one frame, plus any leading and trailing OBUs that may be present at the beginning or end, respectively. More...

#include "libavutil/avassert.h"
#include "libavcodec/bsf.h"
#include "libavcodec/bsf_internal.h"
#include "libavcodec/cbs.h"
#include "libavcodec/cbs_av1.h"

Go to the source code of this file.

Data Structures
struct	AV1FSplitContext

Functions
static int	av1_frame_split_filter (AVBSFContext *ctx, AVPacket *out)
static int	av1_frame_split_init (AVBSFContext *ctx)
static void	av1_frame_split_flush (AVBSFContext *ctx)
static void	av1_frame_split_close (AVBSFContext *ctx)

Variables
static const CodedBitstreamUnitType	decompose_unit_types []
static enum AVCodecID	av1_frame_split_codec_ids []
const FFBitStreamFilter	ff_av1_frame_split_bsf

Detailed Description

This bitstream filter splits AV1 Temporal Units into packets containing just one frame, plus any leading and trailing OBUs that may be present at the beginning or end, respectively.

Temporal Units already containing only one frame will be passed through unchanged. When splitting can't be performed, the Temporal Unit will be passed through containing only the remaining OBUs starting from the first one after the last successfully split frame.

Definition in file av1_frame_split.c.

Function Documentation

av1_frame_split_filter()

static int av1_frame_split_filter ( AVBSFContext * ctx, AVPacket * out )

static

Definition at line 51 of file av1_frame_split.c.

av1_frame_split_init()

static int av1_frame_split_init ( AVBSFContext * ctx )

static

Definition at line 203 of file av1_frame_split.c.

av1_frame_split_flush()

static void av1_frame_split_flush ( AVBSFContext * ctx )

static

Definition at line 232 of file av1_frame_split.c.

av1_frame_split_close()

static void av1_frame_split_close ( AVBSFContext * ctx )

static

Definition at line 240 of file av1_frame_split.c.

Variable Documentation

decompose_unit_types

const CodedBitstreamUnitType decompose_unit_types[]

static

Initial value:

= {
    AV1_OBU_TEMPORAL_DELIMITER,
    AV1_OBU_SEQUENCE_HEADER,
    AV1_OBU_FRAME_HEADER,
    AV1_OBU_TILE_GROUP,
    AV1_OBU_FRAME,
}

Definition at line 195 of file av1_frame_split.c.

av1_frame_split_codec_ids

enum AVCodecID av1_frame_split_codec_ids[]

static

Initial value:

= {
    AV_CODEC_ID_AV1, AV_CODEC_ID_NONE,
}

Definition at line 249 of file av1_frame_split.c.

ff_av1_frame_split_bsf

const FFBitStreamFilter ff_av1_frame_split_bsf

Initial value:

= {
    .p.name         = "av1_frame_split",
    .p.codec_ids    = av1_frame_split_codec_ids,
    .priv_data_size = sizeof(AV1FSplitContext),
    .init           = av1_frame_split_init,
    .flush          = av1_frame_split_flush,
    .close          = av1_frame_split_close,
    .filter         = av1_frame_split_filter,
}

Definition at line 253 of file av1_frame_split.c.