zerocodec.c File Reference

#include <zlib.h>
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "zlib_wrapper.h"
#include "libavutil/attributes.h"
#include "libavutil/common.h"

Go to the source code of this file.

Data Structures
struct	ZeroCodecContext

Functions
static int	zerocodec_decode_frame (AVCodecContext *avctx, AVFrame *pic, int *got_frame, AVPacket *avpkt)
static av_cold int	zerocodec_decode_close (AVCodecContext *avctx)
static av_cold int	zerocodec_decode_init (AVCodecContext *avctx)
static av_cold void	zerocodec_decode_flush (AVCodecContext *avctx)

Variables
const FFCodec	ff_zerocodec_decoder

Function Documentation

zerocodec_decode_frame()

static int zerocodec_decode_frame ( AVCodecContext * avctx, AVFrame * pic, int * got_frame, AVPacket * avpkt )

static

ZeroCodec has very simple interframe compression. If a value is the same as the previous frame, set it to 0.

Definition at line 33 of file zerocodec.c.

zerocodec_decode_close()

static av_cold int zerocodec_decode_close ( AVCodecContext * avctx )

static

Definition at line 105 of file zerocodec.c.

zerocodec_decode_init()

static av_cold int zerocodec_decode_init ( AVCodecContext * avctx )

static

Definition at line 116 of file zerocodec.c.

zerocodec_decode_flush()

static av_cold void zerocodec_decode_flush ( AVCodecContext * avctx )

static

Definition at line 130 of file zerocodec.c.

Variable Documentation

ff_zerocodec_decoder

const FFCodec ff_zerocodec_decoder

Initial value:

= {
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.name         = "zerocodec",
    CODEC_LONG_NAME("ZeroCodec Lossless Video"),
    .p.id           = AV_CODEC_ID_ZEROCODEC,
    .priv_data_size = sizeof(ZeroCodecContext),
    .init           = zerocodec_decode_init,
    FF_CODEC_DECODE_CB(zerocodec_decode_frame),
    .flush          = zerocodec_decode_flush,
    .close          = zerocodec_decode_close,
    .p.capabilities = AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 137 of file zerocodec.c.