FFmpeg
libavcodec
msmpeg4dec.h
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/*
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* MSMPEG4 decoder header
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* copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_MSMPEG4DEC_H
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#define AVCODEC_MSMPEG4DEC_H
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#include "config.h"
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#include "
avcodec.h
"
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#include "
mpegvideo.h
"
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#define INTER_INTRA_VLC_BITS 3
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#define MB_NON_INTRA_VLC_BITS 9
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#define MB_INTRA_VLC_BITS 9
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extern
VLC
ff_mb_non_intra_vlc
[4];
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extern
VLC
ff_inter_intra_vlc
;
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int
ff_msmpeg4_decode_init
(
AVCodecContext
*avctx);
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int
ff_msmpeg4_decode_picture_header
(
MpegEncContext
*
s
);
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int
ff_msmpeg4_decode_ext_header
(
MpegEncContext
*
s
,
int
buf_size);
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void
ff_msmpeg4_decode_motion
(
MpegEncContext
*
s
,
int
*mx_ptr,
int
*my_ptr);
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int
ff_msmpeg4_decode_block
(
MpegEncContext
*
s
, int16_t *
block
,
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int
n,
int
coded,
const
uint8_t *scan_table);
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#define CONFIG_MSMPEG4_DECODER (CONFIG_MSMPEG4V1_DECODER || \
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CONFIG_MSMPEG4V2_DECODER || \
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CONFIG_MSMPEG4V3_DECODER || \
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CONFIG_WMV1_DECODER || \
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CONFIG_WMV2_DECODER || \
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CONFIG_VC1_DECODER)
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#endif
mpegvideo.h
ff_inter_intra_vlc
VLC ff_inter_intra_vlc
Definition:
msmpeg4dec.c:74
s
#define s(width, name)
Definition:
cbs_vp9.c:256
ff_msmpeg4_decode_init
int ff_msmpeg4_decode_init(AVCodecContext *avctx)
Definition:
msmpeg4dec.c:370
ff_msmpeg4_decode_motion
void ff_msmpeg4_decode_motion(MpegEncContext *s, int *mx_ptr, int *my_ptr)
Definition:
msmpeg4dec.c:835
ff_msmpeg4_decode_ext_header
int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size)
Definition:
msmpeg4dec.c:564
avcodec.h
AVCodecContext
main external API structure.
Definition:
avcodec.h:389
VLC
Definition:
vlc.h:31
ff_mb_non_intra_vlc
VLC ff_mb_non_intra_vlc[4]
Definition:
msmpeg4dec.c:69
ff_msmpeg4_decode_picture_header
int ff_msmpeg4_decode_picture_header(MpegEncContext *s)
Definition:
msmpeg4dec.c:408
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition:
filter_design.txt:207
ff_msmpeg4_decode_block
int ff_msmpeg4_decode_block(MpegEncContext *s, int16_t *block, int n, int coded, const uint8_t *scan_table)
Definition:
msmpeg4dec.c:648
MpegEncContext
MpegEncContext.
Definition:
mpegvideo.h:62
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