h263dec.c File Reference

H.263 decoder. More...

#include "libavutil/cpu.h"
#include "avcodec.h"
#include "error_resilience.h"
#include "flv.h"
#include "h263.h"
#include "h263_parser.h"
#include "internal.h"
#include "mpeg4video.h"
#include "mpeg4video_parser.h"
#include "mpegvideo.h"
#include "msmpeg4.h"
#include "vdpau_internal.h"
#include "thread.h"

Go to the source code of this file.

Macros
#define	UNCHECKED_BITSTREAM_READER   1
#define	SET_QPEL_FUNC(postfix1, postfix2)

Functions
av_cold int	ff_h263_decode_init (AVCodecContext *avctx)
av_cold int	ff_h263_decode_end (AVCodecContext *avctx)
static int	get_consumed_bytes (MpegEncContext *s, int buf_size)
	Return the number of bytes consumed for building the current frame.
static int	decode_slice (MpegEncContext *s)
int	ff_h263_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)

Variables
enum AVPixelFormat	ff_h263_hwaccel_pixfmt_list_420 []
AVCodec	ff_h263_decoder
AVCodec	ff_h263p_decoder

Detailed Description

H.263 decoder.

Definition in file h263dec.c.

Macro Definition Documentation

#define UNCHECKED_BITSTREAM_READER   1

Definition at line 28 of file h263dec.c.

#define SET_QPEL_FUNC	(		postfix1,
			postfix2
	)

Value:

s->dsp.put_        ## postfix1 = ff_put_        ## postfix2;    \
    s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;    \
    s->dsp.avg_        ## postfix1 = ff_avg_        ## postfix2;

Referenced by ff_h263_decode_frame().

Function Documentation

av_cold int ff_h263_decode_init

(

AVCodecContext *

avctx

)

Definition at line 44 of file h263dec.c.

Referenced by decode_init(), and ff_msmpeg4_decode_init().

av_cold int ff_h263_decode_end

(

AVCodecContext *

avctx

)

Definition at line 130 of file h263dec.c.

Referenced by wmv2_decode_end().

static int get_consumed_bytes ( MpegEncContext *  s, int  buf_size  )

static

Return the number of bytes consumed for building the current frame.

Definition at line 141 of file h263dec.c.

Referenced by ff_h263_decode_frame().

static int decode_slice ( MpegEncContext *  s )

static

Definition at line 167 of file h263dec.c.

Referenced by ff_h263_decode_frame().

int ff_h263_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	got_frame,
		AVPacket *	avpkt
	)

Definition at line 368 of file h263dec.c.

Variable Documentation

enum AVPixelFormat ff_h263_hwaccel_pixfmt_list_420[]

Initial value:

= {






    AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_NONE
}

Definition at line 812 of file h263dec.c.

AVCodec ff_h263_decoder

Initial value:

= {
    .name           = "h263",
    .long_name      = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_H263,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_h263_decode_init,
    .close          = ff_h263_decode_end,
    .decode         = ff_h263_decode_frame,
    .capabilities   = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
                      CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
    .flush          = ff_mpeg_flush,
    .max_lowres     = 3,
    .pix_fmts       = ff_h263_hwaccel_pixfmt_list_420,
}

Definition at line 823 of file h263dec.c.

AVCodec ff_h263p_decoder

Initial value:

= {
    .name           = "h263p",
    .long_name      = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_H263P,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_h263_decode_init,
    .close          = ff_h263_decode_end,
    .decode         = ff_h263_decode_frame,
    .capabilities   = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
                      CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
    .flush          = ff_mpeg_flush,
    .max_lowres     = 3,
    .pix_fmts       = ff_h263_hwaccel_pixfmt_list_420,
}

Definition at line 839 of file h263dec.c.