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64 lines
2.2 KiB
64 lines
2.2 KiB
/* |
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* H.263 decoder internal header |
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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_H263DEC_H |
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#define AVCODEC_H263DEC_H |
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#include "mpegvideo.h" |
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#include "vlc.h" |
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// The defines below define the number of bits that are read at once for |
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// reading vlc values. Changing these may improve speed and data cache needs |
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// be aware though that decreasing them may need the number of stages that is |
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// passed to get_vlc* to be increased. |
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#define H263_MV_VLC_BITS 9 |
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#define INTRA_MCBPC_VLC_BITS 6 |
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#define INTER_MCBPC_VLC_BITS 7 |
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#define CBPY_VLC_BITS 6 |
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#define TEX_VLC_BITS 9 |
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extern VLCElem ff_h263_intra_MCBPC_vlc[]; |
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extern VLCElem ff_h263_inter_MCBPC_vlc[]; |
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extern VLCElem ff_h263_cbpy_vlc[]; |
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extern VLCElem ff_h263_mv_vlc[]; |
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extern const enum AVPixelFormat ff_h263_hwaccel_pixfmt_list_420[]; |
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int ff_h263_decode_motion(MpegEncContext * s, int pred, int f_code); |
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int ff_h263_decode_init(AVCodecContext *avctx); |
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int ff_h263_decode_frame(AVCodecContext *avctx, AVFrame *frame, |
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int *got_frame, AVPacket *avpkt); |
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int ff_h263_decode_end(AVCodecContext *avctx); |
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void ff_h263_decode_init_vlc(void); |
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int ff_h263_decode_picture_header(MpegEncContext *s); |
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int ff_h263_decode_gob_header(MpegEncContext *s); |
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int ff_h263_decode_mba(MpegEncContext *s); |
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/** |
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* Print picture info if FF_DEBUG_PICT_INFO is set. |
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*/ |
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void ff_h263_show_pict_info(MpegEncContext *s); |
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int ff_intel_h263_decode_picture_header(MpegEncContext *s); |
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int ff_h263_decode_mb(MpegEncContext *s, |
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int16_t block[6][64]); |
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int ff_h263_resync(MpegEncContext *s); |
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#endif
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