| /* |
| * H.263 decoder internal header |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| #ifndef AVCODEC_H263DEC_H |
| #define AVCODEC_H263DEC_H |
| |
| #include "mpegvideo.h" |
| #include "vlc.h" |
| |
| // The defines below define the number of bits that are read at once for |
| // reading vlc values. Changing these may improve speed and data cache needs |
| // be aware though that decreasing them may need the number of stages that is |
| // passed to get_vlc* to be increased. |
| #define H263_MV_VLC_BITS 9 |
| #define INTRA_MCBPC_VLC_BITS 6 |
| #define INTER_MCBPC_VLC_BITS 7 |
| #define CBPY_VLC_BITS 6 |
| #define TEX_VLC_BITS 9 |
| |
| extern VLC ff_h263_intra_MCBPC_vlc; |
| extern VLC ff_h263_inter_MCBPC_vlc; |
| extern VLC ff_h263_cbpy_vlc; |
| extern VLC ff_h263_mv_vlc; |
| |
| extern const enum AVPixelFormat ff_h263_hwaccel_pixfmt_list_420[]; |
| |
| int ff_h263_decode_motion(MpegEncContext * s, int pred, int f_code); |
| int ff_h263_decode_init(AVCodecContext *avctx); |
| int ff_h263_decode_frame(AVCodecContext *avctx, AVFrame *frame, |
| int *got_frame, AVPacket *avpkt); |
| int ff_h263_decode_end(AVCodecContext *avctx); |
| void ff_h263_decode_init_vlc(void); |
| int ff_h263_decode_picture_header(MpegEncContext *s); |
| int ff_h263_decode_gob_header(MpegEncContext *s); |
| int ff_h263_decode_mba(MpegEncContext *s); |
| |
| /** |
| * Print picture info if FF_DEBUG_PICT_INFO is set. |
| */ |
| void ff_h263_show_pict_info(MpegEncContext *s); |
| |
| int ff_intel_h263_decode_picture_header(MpegEncContext *s); |
| int ff_h263_decode_mb(MpegEncContext *s, |
| int16_t block[6][64]); |
| |
| int ff_h263_resync(MpegEncContext *s); |
| |
| #endif |
