mirror of https://github.com/FFmpeg/FFmpeg.git
* qatar/master: snow: split snow in snowdec and snowenc tiffenc: deprecate using compression_level swscale: fix failing fate tests. swscale: add support for planar RGB input. h264: add support for decoding planar RGB images. Clean up swscale pixfmt macros using av_pix_fmt_descriptors[]. pixfmt: add planar RGB formats. Conflicts: libavcodec/h264.c libavcodec/snow.c libavcodec/utils.c libavutil/avutil.h libavutil/pixdesc.c libavutil/pixfmt.h libswscale/swscale.c libswscale/swscale_internal.h libswscale/swscale_unscaled.c libswscale/utils.c Merged-by: Michael Niedermayer <michaelni@gmx.at>pull/2/head
Michael Niedermayer
13 years ago
commit
92afb43162
18 changed files with 3828 additions and 3432 deletions
File diff suppressed because it is too large
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@ -0,0 +1,132 @@ |
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/*
|
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* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at> |
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* Copyright (C) 2006 Robert Edele <yartrebo@earthlink.net> |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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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|
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#ifndef AVCODEC_SNOWDATA_H |
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#define AVCODEC_SNOWDATA_H |
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#include "snow.h" |
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|
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static const uint8_t obmc32[1024]={ |
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0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, |
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0, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 16, 20, 20, 20, 24, 24, 20, 20, 20, 16, 16, 16, 12, 12, 8, 8, 8, 4, 4, 4, 0, |
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0, 4, 8, 8, 12, 12, 16, 20, 20, 24, 28, 28, 32, 32, 36, 40, 40, 36, 32, 32, 28, 28, 24, 20, 20, 16, 12, 12, 8, 8, 4, 0, |
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0, 4, 8, 12, 16, 20, 24, 28, 28, 32, 36, 40, 44, 48, 52, 56, 56, 52, 48, 44, 40, 36, 32, 28, 28, 24, 20, 16, 12, 8, 4, 0, |
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4, 8, 12, 16, 20, 24, 28, 32, 40, 44, 48, 52, 56, 60, 64, 68, 68, 64, 60, 56, 52, 48, 44, 40, 32, 28, 24, 20, 16, 12, 8, 4, |
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4, 8, 12, 20, 24, 32, 36, 40, 48, 52, 56, 64, 68, 76, 80, 84, 84, 80, 76, 68, 64, 56, 52, 48, 40, 36, 32, 24, 20, 12, 8, 4, |
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4, 8, 16, 24, 28, 36, 44, 48, 56, 60, 68, 76, 80, 88, 96,100,100, 96, 88, 80, 76, 68, 60, 56, 48, 44, 36, 28, 24, 16, 8, 4, |
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4, 12, 20, 28, 32, 40, 48, 56, 64, 72, 80, 88, 92,100,108,116,116,108,100, 92, 88, 80, 72, 64, 56, 48, 40, 32, 28, 20, 12, 4, |
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4, 12, 20, 28, 40, 48, 56, 64, 72, 80, 88, 96,108,116,124,132,132,124,116,108, 96, 88, 80, 72, 64, 56, 48, 40, 28, 20, 12, 4, |
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4, 16, 24, 32, 44, 52, 60, 72, 80, 92,100,108,120,128,136,148,148,136,128,120,108,100, 92, 80, 72, 60, 52, 44, 32, 24, 16, 4, |
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4, 16, 28, 36, 48, 56, 68, 80, 88,100,112,120,132,140,152,164,164,152,140,132,120,112,100, 88, 80, 68, 56, 48, 36, 28, 16, 4, |
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4, 16, 28, 40, 52, 64, 76, 88, 96,108,120,132,144,156,168,180,180,168,156,144,132,120,108, 96, 88, 76, 64, 52, 40, 28, 16, 4, |
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8, 20, 32, 44, 56, 68, 80, 92,108,120,132,144,156,168,180,192,192,180,168,156,144,132,120,108, 92, 80, 68, 56, 44, 32, 20, 8, |
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8, 20, 32, 48, 60, 76, 88,100,116,128,140,156,168,184,196,208,208,196,184,168,156,140,128,116,100, 88, 76, 60, 48, 32, 20, 8, |
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8, 20, 36, 52, 64, 80, 96,108,124,136,152,168,180,196,212,224,224,212,196,180,168,152,136,124,108, 96, 80, 64, 52, 36, 20, 8, |
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8, 24, 40, 56, 68, 84,100,116,132,148,164,180,192,208,224,240,240,224,208,192,180,164,148,132,116,100, 84, 68, 56, 40, 24, 8, |
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8, 24, 40, 56, 68, 84,100,116,132,148,164,180,192,208,224,240,240,224,208,192,180,164,148,132,116,100, 84, 68, 56, 40, 24, 8, |
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8, 20, 36, 52, 64, 80, 96,108,124,136,152,168,180,196,212,224,224,212,196,180,168,152,136,124,108, 96, 80, 64, 52, 36, 20, 8, |
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8, 20, 32, 48, 60, 76, 88,100,116,128,140,156,168,184,196,208,208,196,184,168,156,140,128,116,100, 88, 76, 60, 48, 32, 20, 8, |
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8, 20, 32, 44, 56, 68, 80, 92,108,120,132,144,156,168,180,192,192,180,168,156,144,132,120,108, 92, 80, 68, 56, 44, 32, 20, 8, |
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4, 16, 28, 40, 52, 64, 76, 88, 96,108,120,132,144,156,168,180,180,168,156,144,132,120,108, 96, 88, 76, 64, 52, 40, 28, 16, 4, |
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4, 16, 28, 36, 48, 56, 68, 80, 88,100,112,120,132,140,152,164,164,152,140,132,120,112,100, 88, 80, 68, 56, 48, 36, 28, 16, 4, |
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4, 16, 24, 32, 44, 52, 60, 72, 80, 92,100,108,120,128,136,148,148,136,128,120,108,100, 92, 80, 72, 60, 52, 44, 32, 24, 16, 4, |
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4, 12, 20, 28, 40, 48, 56, 64, 72, 80, 88, 96,108,116,124,132,132,124,116,108, 96, 88, 80, 72, 64, 56, 48, 40, 28, 20, 12, 4, |
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4, 12, 20, 28, 32, 40, 48, 56, 64, 72, 80, 88, 92,100,108,116,116,108,100, 92, 88, 80, 72, 64, 56, 48, 40, 32, 28, 20, 12, 4, |
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4, 8, 16, 24, 28, 36, 44, 48, 56, 60, 68, 76, 80, 88, 96,100,100, 96, 88, 80, 76, 68, 60, 56, 48, 44, 36, 28, 24, 16, 8, 4, |
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4, 8, 12, 20, 24, 32, 36, 40, 48, 52, 56, 64, 68, 76, 80, 84, 84, 80, 76, 68, 64, 56, 52, 48, 40, 36, 32, 24, 20, 12, 8, 4, |
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4, 8, 12, 16, 20, 24, 28, 32, 40, 44, 48, 52, 56, 60, 64, 68, 68, 64, 60, 56, 52, 48, 44, 40, 32, 28, 24, 20, 16, 12, 8, 4, |
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0, 4, 8, 12, 16, 20, 24, 28, 28, 32, 36, 40, 44, 48, 52, 56, 56, 52, 48, 44, 40, 36, 32, 28, 28, 24, 20, 16, 12, 8, 4, 0, |
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0, 4, 8, 8, 12, 12, 16, 20, 20, 24, 28, 28, 32, 32, 36, 40, 40, 36, 32, 32, 28, 28, 24, 20, 20, 16, 12, 12, 8, 8, 4, 0, |
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0, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 16, 20, 20, 20, 24, 24, 20, 20, 20, 16, 16, 16, 12, 12, 8, 8, 8, 4, 4, 4, 0, |
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0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, |
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//error:0.000020
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}; |
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static const uint8_t obmc16[256]={ |
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0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0, |
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4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4, |
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4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4, |
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8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8, |
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8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8, |
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12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12, |
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12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12, |
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16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16, |
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16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16, |
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12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12, |
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12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12, |
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8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28, 8, |
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8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20, 8, |
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4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16, 4, |
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4, 8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16, 8, 4, |
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0, 4, 4, 8, 8, 12, 12, 16, 16, 12, 12, 8, 8, 4, 4, 0, |
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//error:0.000015
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}; |
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|
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//linear *64
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static const uint8_t obmc8[64]={ |
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4, 12, 20, 28, 28, 20, 12, 4, |
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12, 36, 60, 84, 84, 60, 36, 12, |
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20, 60,100,140,140,100, 60, 20, |
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28, 84,140,196,196,140, 84, 28, |
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28, 84,140,196,196,140, 84, 28, |
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20, 60,100,140,140,100, 60, 20, |
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12, 36, 60, 84, 84, 60, 36, 12, |
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4, 12, 20, 28, 28, 20, 12, 4, |
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//error:0.000000
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}; |
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//linear *64
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static const uint8_t obmc4[16]={ |
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16, 48, 48, 16, |
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48,144,144, 48, |
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48,144,144, 48, |
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16, 48, 48, 16, |
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//error:0.000000
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}; |
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const int8_t quant3bA[256]={ |
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0, 0, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, |
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}; |
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const uint8_t * const obmc_tab[4]= { |
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obmc32, obmc16, obmc8, obmc4 |
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}; |
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|
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/* runtime generated tables */ |
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uint8_t qexp[QROOT]; |
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int scale_mv_ref[MAX_REF_FRAMES][MAX_REF_FRAMES]; |
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#endif /* AVCODEC_SNOW_H */ |
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@ -0,0 +1,546 @@ |
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/*
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* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at> |
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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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#include "libavutil/intmath.h" |
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#include "libavutil/log.h" |
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#include "libavutil/opt.h" |
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "dwt.h" |
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#include "snow.h" |
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|
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#include "rangecoder.h" |
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#include "mathops.h" |
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#include "mpegvideo.h" |
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#include "h263.h" |
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#undef NDEBUG |
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#include <assert.h> |
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static av_always_inline void predict_slice_buffered(SnowContext *s, slice_buffer * sb, IDWTELEM * old_buffer, int plane_index, int add, int mb_y){ |
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Plane *p= &s->plane[plane_index]; |
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const int mb_w= s->b_width << s->block_max_depth; |
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const int mb_h= s->b_height << s->block_max_depth; |
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int x, y, mb_x; |
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int block_size = MB_SIZE >> s->block_max_depth; |
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int block_w = plane_index ? block_size/2 : block_size; |
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const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; |
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int obmc_stride= plane_index ? block_size : 2*block_size; |
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int ref_stride= s->current_picture.linesize[plane_index]; |
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uint8_t *dst8= s->current_picture.data[plane_index]; |
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int w= p->width; |
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int h= p->height; |
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if(s->keyframe || (s->avctx->debug&512)){ |
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if(mb_y==mb_h) |
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return; |
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if(add){ |
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for(y=block_w*mb_y; y<FFMIN(h,block_w*(mb_y+1)); y++){ |
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// DWTELEM * line = slice_buffer_get_line(sb, y);
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IDWTELEM * line = sb->line[y]; |
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for(x=0; x<w; x++){ |
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// int v= buf[x + y*w] + (128<<FRAC_BITS) + (1<<(FRAC_BITS-1));
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int v= line[x] + (128<<FRAC_BITS) + (1<<(FRAC_BITS-1)); |
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v >>= FRAC_BITS; |
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if(v&(~255)) v= ~(v>>31); |
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dst8[x + y*ref_stride]= v; |
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} |
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} |
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}else{ |
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for(y=block_w*mb_y; y<FFMIN(h,block_w*(mb_y+1)); y++){ |
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// DWTELEM * line = slice_buffer_get_line(sb, y);
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IDWTELEM * line = sb->line[y]; |
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for(x=0; x<w; x++){ |
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line[x] -= 128 << FRAC_BITS; |
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// buf[x + y*w]-= 128<<FRAC_BITS;
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} |
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} |
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} |
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return; |
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} |
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for(mb_x=0; mb_x<=mb_w; mb_x++){ |
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add_yblock(s, 1, sb, old_buffer, dst8, obmc, |
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block_w*mb_x - block_w/2, |
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block_w*mb_y - block_w/2, |
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block_w, block_w, |
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w, h, |
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w, ref_stride, obmc_stride, |
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mb_x - 1, mb_y - 1, |
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add, 0, plane_index); |
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} |
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} |
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static inline void decode_subband_slice_buffered(SnowContext *s, SubBand *b, slice_buffer * sb, int start_y, int h, int save_state[1]){ |
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const int w= b->width; |
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int y; |
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const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); |
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int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); |
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int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; |
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int new_index = 0; |
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|
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if(b->ibuf == s->spatial_idwt_buffer || s->qlog == LOSSLESS_QLOG){ |
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qadd= 0; |
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qmul= 1<<QEXPSHIFT; |
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} |
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|
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/* If we are on the second or later slice, restore our index. */ |
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if (start_y != 0) |
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new_index = save_state[0]; |
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|
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|
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for(y=start_y; y<h; y++){ |
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int x = 0; |
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int v; |
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IDWTELEM * line = slice_buffer_get_line(sb, y * b->stride_line + b->buf_y_offset) + b->buf_x_offset; |
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memset(line, 0, b->width*sizeof(IDWTELEM)); |
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v = b->x_coeff[new_index].coeff; |
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x = b->x_coeff[new_index++].x; |
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while(x < w){ |
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register int t= ( (v>>1)*qmul + qadd)>>QEXPSHIFT; |
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register int u= -(v&1); |
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line[x] = (t^u) - u; |
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|
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v = b->x_coeff[new_index].coeff; |
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x = b->x_coeff[new_index++].x; |
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} |
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} |
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|
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/* Save our variables for the next slice. */ |
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save_state[0] = new_index; |
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|
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return; |
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} |
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|
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static void decode_q_branch(SnowContext *s, int level, int x, int y){ |
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const int w= s->b_width << s->block_max_depth; |
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const int rem_depth= s->block_max_depth - level; |
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const int index= (x + y*w) << rem_depth; |
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int trx= (x+1)<<rem_depth; |
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const BlockNode *left = x ? &s->block[index-1] : &null_block; |
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const BlockNode *top = y ? &s->block[index-w] : &null_block; |
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const BlockNode *tl = y && x ? &s->block[index-w-1] : left; |
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const BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
|
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int s_context= 2*left->level + 2*top->level + tl->level + tr->level; |
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|
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if(s->keyframe){ |
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set_blocks(s, level, x, y, null_block.color[0], null_block.color[1], null_block.color[2], null_block.mx, null_block.my, null_block.ref, BLOCK_INTRA); |
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return; |
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} |
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|
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if(level==s->block_max_depth || get_rac(&s->c, &s->block_state[4 + s_context])){ |
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int type, mx, my; |
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int l = left->color[0]; |
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int cb= left->color[1]; |
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int cr= left->color[2]; |
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int ref = 0; |
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int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); |
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int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 0*av_log2(2*FFABS(tr->mx - top->mx)); |
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int my_context= av_log2(2*FFABS(left->my - top->my)) + 0*av_log2(2*FFABS(tr->my - top->my)); |
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|
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type= get_rac(&s->c, &s->block_state[1 + left->type + top->type]) ? BLOCK_INTRA : 0; |
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|
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if(type){ |
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pred_mv(s, &mx, &my, 0, left, top, tr); |
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l += get_symbol(&s->c, &s->block_state[32], 1); |
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cb+= get_symbol(&s->c, &s->block_state[64], 1); |
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cr+= get_symbol(&s->c, &s->block_state[96], 1); |
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}else{ |
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if(s->ref_frames > 1) |
||||
ref= get_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], 0); |
||||
pred_mv(s, &mx, &my, ref, left, top, tr); |
||||
mx+= get_symbol(&s->c, &s->block_state[128 + 32*(mx_context + 16*!!ref)], 1); |
||||
my+= get_symbol(&s->c, &s->block_state[128 + 32*(my_context + 16*!!ref)], 1); |
||||
} |
||||
set_blocks(s, level, x, y, l, cb, cr, mx, my, ref, type); |
||||
}else{ |
||||
decode_q_branch(s, level+1, 2*x+0, 2*y+0); |
||||
decode_q_branch(s, level+1, 2*x+1, 2*y+0); |
||||
decode_q_branch(s, level+1, 2*x+0, 2*y+1); |
||||
decode_q_branch(s, level+1, 2*x+1, 2*y+1); |
||||
} |
||||
} |
||||
|
||||
static void dequantize_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, IDWTELEM *src, int stride, int start_y, int end_y){ |
||||
const int w= b->width; |
||||
const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); |
||||
const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); |
||||
const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; |
||||
int x,y; |
||||
|
||||
if(s->qlog == LOSSLESS_QLOG) return; |
||||
|
||||
for(y=start_y; y<end_y; y++){ |
||||
// DWTELEM * line = slice_buffer_get_line_from_address(sb, src + (y * stride));
|
||||
IDWTELEM * line = slice_buffer_get_line(sb, (y * b->stride_line) + b->buf_y_offset) + b->buf_x_offset; |
||||
for(x=0; x<w; x++){ |
||||
int i= line[x]; |
||||
if(i<0){ |
||||
line[x]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias
|
||||
}else if(i>0){ |
||||
line[x]= (( i*qmul + qadd)>>(QEXPSHIFT)); |
||||
} |
||||
} |
||||
} |
||||
} |
||||
|
||||
static void correlate_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median, int start_y, int end_y){ |
||||
const int w= b->width; |
||||
int x,y; |
||||
|
||||
IDWTELEM * line=0; // silence silly "could be used without having been initialized" warning
|
||||
IDWTELEM * prev; |
||||
|
||||
if (start_y != 0) |
||||
line = slice_buffer_get_line(sb, ((start_y - 1) * b->stride_line) + b->buf_y_offset) + b->buf_x_offset; |
||||
|
||||
for(y=start_y; y<end_y; y++){ |
||||
prev = line; |
||||
// line = slice_buffer_get_line_from_address(sb, src + (y * stride));
|
||||
line = slice_buffer_get_line(sb, (y * b->stride_line) + b->buf_y_offset) + b->buf_x_offset; |
||||
for(x=0; x<w; x++){ |
||||
if(x){ |
||||
if(use_median){ |
||||
if(y && x+1<w) line[x] += mid_pred(line[x - 1], prev[x], prev[x + 1]); |
||||
else line[x] += line[x - 1]; |
||||
}else{ |
||||
if(y) line[x] += mid_pred(line[x - 1], prev[x], line[x - 1] + prev[x] - prev[x - 1]); |
||||
else line[x] += line[x - 1]; |
||||
} |
||||
}else{ |
||||
if(y) line[x] += prev[x]; |
||||
} |
||||
} |
||||
} |
||||
} |
||||
|
||||
static void decode_qlogs(SnowContext *s){ |
||||
int plane_index, level, orientation; |
||||
|
||||
for(plane_index=0; plane_index<3; plane_index++){ |
||||
for(level=0; level<s->spatial_decomposition_count; level++){ |
||||
for(orientation=level ? 1:0; orientation<4; orientation++){ |
||||
int q; |
||||
if (plane_index==2) q= s->plane[1].band[level][orientation].qlog; |
||||
else if(orientation==2) q= s->plane[plane_index].band[level][1].qlog; |
||||
else q= get_symbol(&s->c, s->header_state, 1); |
||||
s->plane[plane_index].band[level][orientation].qlog= q; |
||||
} |
||||
} |
||||
} |
||||
} |
||||
|
||||
#define GET_S(dst, check) \ |
||||
tmp= get_symbol(&s->c, s->header_state, 0);\
|
||||
if(!(check)){\
|
||||
av_log(s->avctx, AV_LOG_ERROR, "Error " #dst " is %d\n", tmp);\
|
||||
return -1;\
|
||||
}\
|
||||
dst= tmp; |
||||
|
||||
static int decode_header(SnowContext *s){ |
||||
int plane_index, tmp; |
||||
uint8_t kstate[32]; |
||||
|
||||
memset(kstate, MID_STATE, sizeof(kstate)); |
||||
|
||||
s->keyframe= get_rac(&s->c, kstate); |
||||
if(s->keyframe || s->always_reset){ |
||||
ff_snow_reset_contexts(s); |
||||
s->spatial_decomposition_type= |
||||
s->qlog= |
||||
s->qbias= |
||||
s->mv_scale= |
||||
s->block_max_depth= 0; |
||||
} |
||||
if(s->keyframe){ |
||||
GET_S(s->version, tmp <= 0U) |
||||
s->always_reset= get_rac(&s->c, s->header_state); |
||||
s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0); |
||||
s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0); |
||||
GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS) |
||||
s->colorspace_type= get_symbol(&s->c, s->header_state, 0); |
||||
s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0); |
||||
s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0); |
||||
s->spatial_scalability= get_rac(&s->c, s->header_state); |
||||
// s->rate_scalability= get_rac(&s->c, s->header_state);
|
||||
GET_S(s->max_ref_frames, tmp < (unsigned)MAX_REF_FRAMES) |
||||
s->max_ref_frames++; |
||||
|
||||
decode_qlogs(s); |
||||
} |
||||
|
||||
if(!s->keyframe){ |
||||
if(get_rac(&s->c, s->header_state)){ |
||||
for(plane_index=0; plane_index<2; plane_index++){ |
||||
int htaps, i, sum=0; |
||||
Plane *p= &s->plane[plane_index]; |
||||
p->diag_mc= get_rac(&s->c, s->header_state); |
||||
htaps= get_symbol(&s->c, s->header_state, 0)*2 + 2; |
||||
if((unsigned)htaps > HTAPS_MAX || htaps==0) |
||||
return -1; |
||||
p->htaps= htaps; |
||||
for(i= htaps/2; i; i--){ |
||||
p->hcoeff[i]= get_symbol(&s->c, s->header_state, 0) * (1-2*(i&1)); |
||||
sum += p->hcoeff[i]; |
||||
} |
||||
p->hcoeff[0]= 32-sum; |
||||
} |
||||
s->plane[2].diag_mc= s->plane[1].diag_mc; |
||||
s->plane[2].htaps = s->plane[1].htaps; |
||||
memcpy(s->plane[2].hcoeff, s->plane[1].hcoeff, sizeof(s->plane[1].hcoeff)); |
||||
} |
||||
if(get_rac(&s->c, s->header_state)){ |
||||
GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS) |
||||
decode_qlogs(s); |
||||
} |
||||
} |
||||
|
||||
s->spatial_decomposition_type+= get_symbol(&s->c, s->header_state, 1); |
||||
if(s->spatial_decomposition_type > 1U){ |
||||
av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type); |
||||
return -1; |
||||
} |
||||
if(FFMIN(s->avctx-> width>>s->chroma_h_shift, |
||||
s->avctx->height>>s->chroma_v_shift) >> (s->spatial_decomposition_count-1) <= 0){ |
||||
av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_count %d too large for size", s->spatial_decomposition_count); |
||||
return -1; |
||||
} |
||||
|
||||
s->qlog += get_symbol(&s->c, s->header_state, 1); |
||||
s->mv_scale += get_symbol(&s->c, s->header_state, 1); |
||||
s->qbias += get_symbol(&s->c, s->header_state, 1); |
||||
s->block_max_depth+= get_symbol(&s->c, s->header_state, 1); |
||||
if(s->block_max_depth > 1 || s->block_max_depth < 0){ |
||||
av_log(s->avctx, AV_LOG_ERROR, "block_max_depth= %d is too large", s->block_max_depth); |
||||
s->block_max_depth= 0; |
||||
return -1; |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static av_cold int decode_init(AVCodecContext *avctx) |
||||
{ |
||||
avctx->pix_fmt= PIX_FMT_YUV420P; |
||||
|
||||
ff_snow_common_init(avctx); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static void decode_blocks(SnowContext *s){ |
||||
int x, y; |
||||
int w= s->b_width; |
||||
int h= s->b_height; |
||||
|
||||
for(y=0; y<h; y++){ |
||||
for(x=0; x<w; x++){ |
||||
decode_q_branch(s, 0, x, y); |
||||
} |
||||
} |
||||
} |
||||
|
||||
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt){ |
||||
const uint8_t *buf = avpkt->data; |
||||
int buf_size = avpkt->size; |
||||
SnowContext *s = avctx->priv_data; |
||||
RangeCoder * const c= &s->c; |
||||
int bytes_read; |
||||
AVFrame *picture = data; |
||||
int level, orientation, plane_index; |
||||
|
||||
ff_init_range_decoder(c, buf, buf_size); |
||||
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); |
||||
|
||||
s->current_picture.pict_type= AV_PICTURE_TYPE_I; //FIXME I vs. P
|
||||
if(decode_header(s)<0) |
||||
return -1; |
||||
ff_snow_common_init_after_header(avctx); |
||||
|
||||
// realloc slice buffer for the case that spatial_decomposition_count changed
|
||||
ff_slice_buffer_destroy(&s->sb); |
||||
ff_slice_buffer_init(&s->sb, s->plane[0].height, (MB_SIZE >> s->block_max_depth) + s->spatial_decomposition_count * 8 + 1, s->plane[0].width, s->spatial_idwt_buffer); |
||||
|
||||
for(plane_index=0; plane_index<3; plane_index++){ |
||||
Plane *p= &s->plane[plane_index]; |
||||
p->fast_mc= p->diag_mc && p->htaps==6 && p->hcoeff[0]==40 |
||||
&& p->hcoeff[1]==-10 |
||||
&& p->hcoeff[2]==2; |
||||
} |
||||
|
||||
ff_snow_alloc_blocks(s); |
||||
|
||||
if(ff_snow_frame_start(s) < 0) |
||||
return -1; |
||||
//keyframe flag duplication mess FIXME
|
||||
if(avctx->debug&FF_DEBUG_PICT_INFO) |
||||
av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog); |
||||
|
||||
decode_blocks(s); |
||||
|
||||
for(plane_index=0; plane_index<3; plane_index++){ |
||||
Plane *p= &s->plane[plane_index]; |
||||
int w= p->width; |
||||
int h= p->height; |
||||
int x, y; |
||||
int decode_state[MAX_DECOMPOSITIONS][4][1]; /* Stored state info for unpack_coeffs. 1 variable per instance. */ |
||||
|
||||
if(s->avctx->debug&2048){ |
||||
memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h); |
||||
predict_plane(s, s->spatial_idwt_buffer, plane_index, 1); |
||||
|
||||
for(y=0; y<h; y++){ |
||||
for(x=0; x<w; x++){ |
||||
int v= s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]; |
||||
s->mconly_picture.data[plane_index][y*s->mconly_picture.linesize[plane_index] + x]= v; |
||||
} |
||||
} |
||||
} |
||||
|
||||
{ |
||||
for(level=0; level<s->spatial_decomposition_count; level++){ |
||||
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
||||
SubBand *b= &p->band[level][orientation]; |
||||
unpack_coeffs(s, b, b->parent, orientation); |
||||
} |
||||
} |
||||
} |
||||
|
||||
{ |
||||
const int mb_h= s->b_height << s->block_max_depth; |
||||
const int block_size = MB_SIZE >> s->block_max_depth; |
||||
const int block_w = plane_index ? block_size/2 : block_size; |
||||
int mb_y; |
||||
DWTCompose cs[MAX_DECOMPOSITIONS]; |
||||
int yd=0, yq=0; |
||||
int y; |
||||
int end_y; |
||||
|
||||
ff_spatial_idwt_buffered_init(cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count); |
||||
for(mb_y=0; mb_y<=mb_h; mb_y++){ |
||||
|
||||
int slice_starty = block_w*mb_y; |
||||
int slice_h = block_w*(mb_y+1); |
||||
if (!(s->keyframe || s->avctx->debug&512)){ |
||||
slice_starty = FFMAX(0, slice_starty - (block_w >> 1)); |
||||
slice_h -= (block_w >> 1); |
||||
} |
||||
|
||||
for(level=0; level<s->spatial_decomposition_count; level++){ |
||||
for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
||||
SubBand *b= &p->band[level][orientation]; |
||||
int start_y; |
||||
int end_y; |
||||
int our_mb_start = mb_y; |
||||
int our_mb_end = (mb_y + 1); |
||||
const int extra= 3; |
||||
start_y = (mb_y ? ((block_w * our_mb_start) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra: 0); |
||||
end_y = (((block_w * our_mb_end) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra); |
||||
if (!(s->keyframe || s->avctx->debug&512)){ |
||||
start_y = FFMAX(0, start_y - (block_w >> (1+s->spatial_decomposition_count - level))); |
||||
end_y = FFMAX(0, end_y - (block_w >> (1+s->spatial_decomposition_count - level))); |
||||
} |
||||
start_y = FFMIN(b->height, start_y); |
||||
end_y = FFMIN(b->height, end_y); |
||||
|
||||
if (start_y != end_y){ |
||||
if (orientation == 0){ |
||||
SubBand * correlate_band = &p->band[0][0]; |
||||
int correlate_end_y = FFMIN(b->height, end_y + 1); |
||||
int correlate_start_y = FFMIN(b->height, (start_y ? start_y + 1 : 0)); |
||||
decode_subband_slice_buffered(s, correlate_band, &s->sb, correlate_start_y, correlate_end_y, decode_state[0][0]); |
||||
correlate_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, 1, 0, correlate_start_y, correlate_end_y); |
||||
dequantize_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, start_y, end_y); |
||||
} |
||||
else |
||||
decode_subband_slice_buffered(s, b, &s->sb, start_y, end_y, decode_state[level][orientation]); |
||||
} |
||||
} |
||||
} |
||||
|
||||
for(; yd<slice_h; yd+=4){ |
||||
ff_spatial_idwt_buffered_slice(&s->dwt, cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count, yd); |
||||
} |
||||
|
||||
if(s->qlog == LOSSLESS_QLOG){ |
||||
for(; yq<slice_h && yq<h; yq++){ |
||||
IDWTELEM * line = slice_buffer_get_line(&s->sb, yq); |
||||
for(x=0; x<w; x++){ |
||||
line[x] <<= FRAC_BITS; |
||||
} |
||||
} |
||||
} |
||||
|
||||
predict_slice_buffered(s, &s->sb, s->spatial_idwt_buffer, plane_index, 1, mb_y); |
||||
|
||||
y = FFMIN(p->height, slice_starty); |
||||
end_y = FFMIN(p->height, slice_h); |
||||
while(y < end_y) |
||||
ff_slice_buffer_release(&s->sb, y++); |
||||
} |
||||
|
||||
ff_slice_buffer_flush(&s->sb); |
||||
} |
||||
|
||||
} |
||||
|
||||
emms_c(); |
||||
|
||||
ff_snow_release_buffer(avctx); |
||||
|
||||
if(!(s->avctx->debug&2048)) |
||||
*picture= s->current_picture; |
||||
else |
||||
*picture= s->mconly_picture; |
||||
|
||||
*data_size = sizeof(AVFrame); |
||||
|
||||
bytes_read= c->bytestream - c->bytestream_start; |
||||
if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n"); //FIXME
|
||||
|
||||
return bytes_read; |
||||
} |
||||
|
||||
static av_cold int decode_end(AVCodecContext *avctx) |
||||
{ |
||||
SnowContext *s = avctx->priv_data; |
||||
|
||||
ff_slice_buffer_destroy(&s->sb); |
||||
|
||||
ff_snow_common_end(s); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
AVCodec ff_snow_decoder = { |
||||
.name = "snow", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = CODEC_ID_SNOW, |
||||
.priv_data_size = sizeof(SnowContext), |
||||
.init = decode_init, |
||||
.close = decode_end, |
||||
.decode = decode_frame, |
||||
.capabilities = CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/, |
||||
.long_name = NULL_IF_CONFIG_SMALL("Snow"), |
||||
}; |
||||
File diff suppressed because it is too large
Load Diff
Loading…
Reference in new issue