libavcodec/h263dec.c File Reference

H.263 decoder. More...

#include "internal.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#include "h263_parser.h"
#include "mpeg4video_parser.h"
#include "msmpeg4.h"

Go to the source code of this file.

Defines
#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)
	returns 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 *data_size, const uint8_t *buf, int buf_size)
Variables
AVCodec	mpeg4_decoder
AVCodec	h263_decoder
AVCodec	msmpeg4v1_decoder
AVCodec	msmpeg4v2_decoder
AVCodec	msmpeg4v3_decoder
AVCodec	wmv1_decoder
AVCodec	h263i_decoder
AVCodec	flv_decoder

---

Detailed Description

H.263 decoder.

Definition in file h263dec.c.

---

Define Documentation

#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

static int decode_slice

(

MpegEncContext *

s

)

[static]

Definition at line 153 of file h263dec.c.

Referenced by execute_decode_slices(), and ff_h263_decode_frame().

av_cold int ff_h263_decode_end

(

AVCodecContext *

avctx

)

Definition at line 124 of file h263dec.c.

Referenced by wmv2_decode_end().

int ff_h263_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		const uint8_t *	buf,
		int	buf_size
	)

Definition at line 332 of file h263dec.c.

av_cold int ff_h263_decode_init

(

AVCodecContext *

avctx

)

Definition at line 39 of file h263dec.c.

Referenced by vc1_decode_init(), and wmv2_decode_init().

static int get_consumed_bytes	(	MpegEncContext *	s,
		int	buf_size
	)			[static]

returns the number of bytes consumed for building the current frame

Definition at line 135 of file h263dec.c.

---

Variable Documentation

AVCodec flv_decoder

Initial value:

 {
    "flv",
    CODEC_TYPE_VIDEO,
    CODEC_ID_FLV1,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
    .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV)"),
    .pix_fmts= ff_pixfmt_list_420,
}

Definition at line 831 of file h263dec.c.

AVCodec h263_decoder

Initial value:

 {
    "h263",
    CODEC_TYPE_VIDEO,
    CODEC_ID_H263,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
    .flush= ff_mpeg_flush,
    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
    .pix_fmts= ff_hwaccel_pixfmt_list_420,
}

Definition at line 746 of file h263dec.c.

AVCodec h263i_decoder

Initial value:

 {
    "h263i",
    CODEC_TYPE_VIDEO,
    CODEC_ID_H263I,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("Intel H.263"),
    .pix_fmts= ff_pixfmt_list_420,
}

Definition at line 817 of file h263dec.c.

AVCodec mpeg4_decoder

Initial value:

 {
    "mpeg4",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MPEG4,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
    .flush= ff_mpeg_flush,
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
    .pix_fmts= ff_hwaccel_pixfmt_list_420,
}

Definition at line 731 of file h263dec.c.

AVCodec msmpeg4v1_decoder

Initial value:

 {
    "msmpeg4v1",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSMPEG4V1,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
    .pix_fmts= ff_pixfmt_list_420,
}

Definition at line 761 of file h263dec.c.

AVCodec msmpeg4v2_decoder

Initial value:

 {
    "msmpeg4v2",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSMPEG4V2,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
    .pix_fmts= ff_pixfmt_list_420,
}

Definition at line 775 of file h263dec.c.

AVCodec msmpeg4v3_decoder

Initial value:

 {
    "msmpeg4",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSMPEG4V3,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
    .pix_fmts= ff_pixfmt_list_420,
}

Definition at line 789 of file h263dec.c.

AVCodec wmv1_decoder

Initial value:

 {
    "wmv1",
    CODEC_TYPE_VIDEO,
    CODEC_ID_WMV1,
    sizeof(MpegEncContext),
    ff_h263_decode_init,
    NULL,
    ff_h263_decode_end,
    ff_h263_decode_frame,
    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
    .pix_fmts= ff_pixfmt_list_420,
}

Definition at line 803 of file h263dec.c.