2003-05-05 04:54:15 +02:00
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/*
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2004-03-08 03:15:13 +01:00
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* Copyright (C) 2003-2004 the ffmpeg project
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2003-05-05 04:54:15 +02:00
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*
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2006-10-07 17:30:46 +02:00
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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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2003-05-05 04:54:15 +02:00
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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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2006-10-07 17:30:46 +02:00
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* version 2.1 of the License, or (at your option) any later version.
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2003-05-05 04:54:15 +02:00
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*
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2006-10-07 17:30:46 +02:00
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* FFmpeg is distributed in the hope that it will be useful,
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2003-05-05 04:54:15 +02:00
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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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2006-10-07 17:30:46 +02:00
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* License along with FFmpeg; if not, write to the Free Software
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2006-01-12 23:43:26 +01:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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2003-05-05 04:54:15 +02:00
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*/
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/**
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2009-02-01 03:00:19 +01:00
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* @file libavcodec/vp3.c
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2003-05-05 04:54:15 +02:00
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* On2 VP3 Video Decoder
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2005-05-18 01:39:23 +02:00
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*
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* VP3 Video Decoder by Mike Melanson (mike at multimedia.cx)
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* For more information about the VP3 coding process, visit:
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2008-05-04 11:58:22 +02:00
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* http://wiki.multimedia.cx/index.php?title=On2_VP3
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2005-05-18 01:39:23 +02:00
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*
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* Theora decoder by Alex Beregszaszi
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2003-05-05 04:54:15 +02:00
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "avcodec.h"
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#include "dsputil.h"
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2009-04-13 18:20:26 +02:00
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#include "get_bits.h"
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2003-05-05 04:54:15 +02:00
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#include "vp3data.h"
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2007-03-25 03:09:26 +02:00
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#include "xiph.h"
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2003-05-05 04:54:15 +02:00
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#define FRAGMENT_PIXELS 8
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2009-09-24 08:33:16 +02:00
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static av_cold int vp3_decode_end(AVCodecContext *avctx);
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2005-05-19 12:48:36 +02:00
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typedef struct Coeff {
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struct Coeff *next;
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DCTELEM coeff;
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uint8_t index;
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} Coeff;
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//FIXME split things out into their own arrays
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2003-05-05 04:54:15 +02:00
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typedef struct Vp3Fragment {
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2005-05-19 12:48:36 +02:00
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Coeff *next_coeff;
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2005-05-18 11:07:26 +02:00
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uint8_t coding_method;
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int8_t motion_x;
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int8_t motion_y;
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2009-05-29 23:43:22 +02:00
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uint8_t qpi;
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2003-05-05 04:54:15 +02:00
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} Vp3Fragment;
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#define SB_NOT_CODED 0
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#define SB_PARTIALLY_CODED 1
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#define SB_FULLY_CODED 2
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2010-02-21 01:10:51 +01:00
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// This is the maximum length of a single long bit run that can be encoded
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// for superblock coding or block qps. Theora special-cases this to read a
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// bit instead of flipping the current bit to allow for runs longer than 4129.
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#define MAXIMUM_LONG_BIT_RUN 4129
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2003-05-05 04:54:15 +02:00
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#define MODE_INTER_NO_MV 0
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#define MODE_INTRA 1
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#define MODE_INTER_PLUS_MV 2
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#define MODE_INTER_LAST_MV 3
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#define MODE_INTER_PRIOR_LAST 4
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#define MODE_USING_GOLDEN 5
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#define MODE_GOLDEN_MV 6
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#define MODE_INTER_FOURMV 7
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#define CODING_MODE_COUNT 8
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/* special internal mode */
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#define MODE_COPY 8
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/* There are 6 preset schemes, plus a free-form scheme */
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2008-06-25 16:14:58 +02:00
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static const int ModeAlphabet[6][CODING_MODE_COUNT] =
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2003-05-05 04:54:15 +02:00
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{
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/* scheme 1: Last motion vector dominates */
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2005-12-17 19:14:38 +01:00
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{ MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
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2003-05-05 04:54:15 +02:00
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MODE_INTER_PLUS_MV, MODE_INTER_NO_MV,
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2005-12-17 19:14:38 +01:00
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MODE_INTRA, MODE_USING_GOLDEN,
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2003-05-05 04:54:15 +02:00
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MODE_GOLDEN_MV, MODE_INTER_FOURMV },
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/* scheme 2 */
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2005-12-17 19:14:38 +01:00
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{ MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
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2003-05-05 04:54:15 +02:00
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MODE_INTER_NO_MV, MODE_INTER_PLUS_MV,
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2005-12-17 19:14:38 +01:00
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MODE_INTRA, MODE_USING_GOLDEN,
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2003-05-05 04:54:15 +02:00
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MODE_GOLDEN_MV, MODE_INTER_FOURMV },
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/* scheme 3 */
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2005-12-17 19:14:38 +01:00
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{ MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
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2003-05-05 04:54:15 +02:00
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MODE_INTER_PRIOR_LAST, MODE_INTER_NO_MV,
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2005-12-17 19:14:38 +01:00
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MODE_INTRA, MODE_USING_GOLDEN,
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2003-05-05 04:54:15 +02:00
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MODE_GOLDEN_MV, MODE_INTER_FOURMV },
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/* scheme 4 */
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2005-12-17 19:14:38 +01:00
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{ MODE_INTER_LAST_MV, MODE_INTER_PLUS_MV,
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2003-05-05 04:54:15 +02:00
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MODE_INTER_NO_MV, MODE_INTER_PRIOR_LAST,
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2005-12-17 19:14:38 +01:00
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MODE_INTRA, MODE_USING_GOLDEN,
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2003-05-05 04:54:15 +02:00
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MODE_GOLDEN_MV, MODE_INTER_FOURMV },
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/* scheme 5: No motion vector dominates */
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2005-12-17 19:14:38 +01:00
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{ MODE_INTER_NO_MV, MODE_INTER_LAST_MV,
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2003-05-05 04:54:15 +02:00
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MODE_INTER_PRIOR_LAST, MODE_INTER_PLUS_MV,
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2005-12-17 19:14:38 +01:00
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MODE_INTRA, MODE_USING_GOLDEN,
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2003-05-05 04:54:15 +02:00
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MODE_GOLDEN_MV, MODE_INTER_FOURMV },
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/* scheme 6 */
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2005-12-17 19:14:38 +01:00
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{ MODE_INTER_NO_MV, MODE_USING_GOLDEN,
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2003-05-05 04:54:15 +02:00
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MODE_INTER_LAST_MV, MODE_INTER_PRIOR_LAST,
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2005-12-17 19:14:38 +01:00
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MODE_INTER_PLUS_MV, MODE_INTRA,
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2003-05-05 04:54:15 +02:00
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MODE_GOLDEN_MV, MODE_INTER_FOURMV },
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};
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#define MIN_DEQUANT_VAL 2
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typedef struct Vp3DecodeContext {
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AVCodecContext *avctx;
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2003-10-11 19:44:21 +02:00
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int theora, theora_tables;
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2003-12-08 12:32:06 +01:00
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int version;
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2003-05-05 04:54:15 +02:00
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int width, height;
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AVFrame golden_frame;
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AVFrame last_frame;
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AVFrame current_frame;
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int keyframe;
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DSPContext dsp;
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2003-11-23 19:43:09 +01:00
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int flipped_image;
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2010-02-12 23:01:35 +01:00
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int last_slice_end;
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2003-05-05 04:54:15 +02:00
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2009-05-29 23:43:22 +02:00
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int qps[3];
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int nqps;
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int last_qps[3];
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2003-05-05 04:54:15 +02:00
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int superblock_count;
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2003-05-10 23:46:17 +02:00
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int y_superblock_width;
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int y_superblock_height;
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int c_superblock_width;
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int c_superblock_height;
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2003-05-05 04:54:15 +02:00
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int u_superblock_start;
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int v_superblock_start;
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unsigned char *superblock_coding;
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int macroblock_count;
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int macroblock_width;
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int macroblock_height;
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int fragment_count;
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int fragment_width;
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int fragment_height;
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Vp3Fragment *all_fragments;
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2008-06-09 18:26:28 +02:00
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uint8_t *coeff_counts;
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2005-05-19 12:48:36 +02:00
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Coeff *coeffs;
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Coeff *next_coeff;
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2006-07-19 22:57:44 +02:00
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int fragment_start[3];
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2010-02-12 23:01:38 +01:00
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int data_offset[3];
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2005-12-17 19:14:38 +01:00
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2005-05-17 13:31:57 +02:00
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ScanTable scantable;
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2005-12-17 19:14:38 +01:00
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2003-10-11 19:44:21 +02:00
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/* tables */
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uint16_t coded_dc_scale_factor[64];
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2004-03-08 03:15:13 +01:00
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uint32_t coded_ac_scale_factor[64];
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2006-07-17 11:51:59 +02:00
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uint8_t base_matrix[384][64];
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uint8_t qr_count[2][3];
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uint8_t qr_size [2][3][64];
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uint16_t qr_base[2][3][64];
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2003-05-05 04:54:15 +02:00
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2008-05-27 01:14:25 +02:00
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/* this is a list of indexes into the all_fragments array indicating
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2003-05-05 04:54:15 +02:00
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* which of the fragments are coded */
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int *coded_fragment_list;
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int coded_fragment_list_index;
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2009-12-02 03:30:15 +01:00
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/* track which fragments have already been decoded; called 'fast'
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* because this data structure avoids having to iterate through every
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* fragment in coded_fragment_list; once a fragment has been fully
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* decoded, it is removed from this list */
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int *fast_fragment_list;
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int fragment_list_y_head;
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int fragment_list_c_head;
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2003-05-05 04:54:15 +02:00
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VLC dc_vlc[16];
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VLC ac_vlc_1[16];
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VLC ac_vlc_2[16];
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VLC ac_vlc_3[16];
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VLC ac_vlc_4[16];
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2005-05-18 01:39:23 +02:00
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VLC superblock_run_length_vlc;
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VLC fragment_run_length_vlc;
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VLC mode_code_vlc;
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VLC motion_vector_vlc;
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2004-04-25 05:33:30 +02:00
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/* these arrays need to be on 16-byte boundaries since SSE2 operations
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* index into them */
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2010-01-22 04:25:11 +01:00
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DECLARE_ALIGNED_16(int16_t, qmat)[3][2][3][64]; //<qmat[qpi][is_inter][plane]
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2003-05-05 04:54:15 +02:00
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/* This table contains superblock_count * 16 entries. Each set of 16
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2008-05-27 01:14:25 +02:00
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* numbers corresponds to the fragment indexes 0..15 of the superblock.
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2003-05-05 04:54:15 +02:00
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* An entry will be -1 to indicate that no entry corresponds to that
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* index. */
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int *superblock_fragments;
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2005-12-17 19:14:38 +01:00
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/* This is an array that indicates how a particular macroblock
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2003-05-12 06:28:35 +02:00
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* is coded. */
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2003-05-11 06:47:45 +02:00
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unsigned char *macroblock_coding;
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2003-05-05 04:54:15 +02:00
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2003-05-10 18:06:33 +02:00
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int first_coded_y_fragment;
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int first_coded_c_fragment;
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int last_coded_y_fragment;
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int last_coded_c_fragment;
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2003-08-19 19:10:00 +02:00
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uint8_t edge_emu_buffer[9*2048]; //FIXME dynamic alloc
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2006-09-27 21:47:39 +02:00
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int8_t qscale_table[2048]; //FIXME dynamic alloc (width+15)/16
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2005-05-20 01:59:10 +02:00
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2005-05-21 07:20:52 +02:00
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/* Huffman decode */
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int hti;
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unsigned int hbits;
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int entries;
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int huff_code_size;
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uint16_t huffman_table[80][32][2];
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2008-10-01 16:40:29 +02:00
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uint8_t filter_limit_values[64];
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2010-01-22 04:25:11 +01:00
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DECLARE_ALIGNED_8(int, bounding_values_array)[256+2];
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2003-05-05 04:54:15 +02:00
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} Vp3DecodeContext;
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/************************************************************************
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* VP3 specific functions
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************************************************************************/
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/*
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* This function sets up all of the various blocks mappings:
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* superblocks <-> fragments, macroblocks <-> fragments,
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* superblocks <-> macroblocks
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2003-05-10 23:46:17 +02:00
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*
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* Returns 0 is successful; returns 1 if *anything* went wrong.
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2003-05-05 04:54:15 +02:00
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*/
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2005-12-17 19:14:38 +01:00
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static int init_block_mapping(Vp3DecodeContext *s)
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2003-05-05 04:54:15 +02:00
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{
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int i, j;
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signed int hilbert_walk_mb[4];
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int current_fragment = 0;
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int current_width = 0;
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int current_height = 0;
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int right_edge = 0;
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int bottom_edge = 0;
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int superblock_row_inc = 0;
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int mapping_index = 0;
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int current_macroblock;
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int c_fragment;
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2009-09-05 19:28:20 +02:00
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static const signed char travel_width[16] = {
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2005-12-17 19:14:38 +01:00
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1, 1, 0, -1,
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2003-05-05 04:54:15 +02:00
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0, 0, 1, 0,
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1, 0, 1, 0,
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0, -1, 0, 1
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};
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2009-09-05 19:28:20 +02:00
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static const signed char travel_height[16] = {
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2003-05-05 04:54:15 +02:00
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0, 0, 1, 0,
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1, 1, 0, -1,
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0, 1, 0, -1,
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-1, 0, -1, 0
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};
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hilbert_walk_mb[0] = 1;
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hilbert_walk_mb[1] = s->macroblock_width;
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hilbert_walk_mb[2] = 1;
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hilbert_walk_mb[3] = -s->macroblock_width;
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/* iterate through each superblock (all planes) and map the fragments */
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for (i = 0; i < s->superblock_count; i++) {
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/* time to re-assign the limits? */
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if (i == 0) {
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/* start of Y superblocks */
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right_edge = s->fragment_width;
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bottom_edge = s->fragment_height;
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2003-05-10 23:46:17 +02:00
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current_width = -1;
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2003-05-05 04:54:15 +02:00
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current_height = 0;
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2005-12-17 19:14:38 +01:00
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superblock_row_inc = 3 * s->fragment_width -
|
2003-05-10 23:46:17 +02:00
|
|
|
(s->y_superblock_width * 4 - s->fragment_width);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
/* the first operation for this variable is to advance by 1 */
|
|
|
|
current_fragment = -1;
|
|
|
|
|
|
|
|
} else if (i == s->u_superblock_start) {
|
|
|
|
|
|
|
|
/* start of U superblocks */
|
|
|
|
right_edge = s->fragment_width / 2;
|
|
|
|
bottom_edge = s->fragment_height / 2;
|
2003-05-10 23:46:17 +02:00
|
|
|
current_width = -1;
|
2003-05-05 04:54:15 +02:00
|
|
|
current_height = 0;
|
2005-12-17 19:14:38 +01:00
|
|
|
superblock_row_inc = 3 * (s->fragment_width / 2) -
|
2003-05-10 23:46:17 +02:00
|
|
|
(s->c_superblock_width * 4 - s->fragment_width / 2);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
/* the first operation for this variable is to advance by 1 */
|
2006-07-19 22:57:44 +02:00
|
|
|
current_fragment = s->fragment_start[1] - 1;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
} else if (i == s->v_superblock_start) {
|
|
|
|
|
|
|
|
/* start of V superblocks */
|
|
|
|
right_edge = s->fragment_width / 2;
|
|
|
|
bottom_edge = s->fragment_height / 2;
|
2003-05-10 23:46:17 +02:00
|
|
|
current_width = -1;
|
2003-05-05 04:54:15 +02:00
|
|
|
current_height = 0;
|
2005-12-17 19:14:38 +01:00
|
|
|
superblock_row_inc = 3 * (s->fragment_width / 2) -
|
2003-05-10 23:46:17 +02:00
|
|
|
(s->c_superblock_width * 4 - s->fragment_width / 2);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
/* the first operation for this variable is to advance by 1 */
|
2006-07-19 22:57:44 +02:00
|
|
|
current_fragment = s->fragment_start[2] - 1;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
}
|
|
|
|
|
2003-05-10 23:46:17 +02:00
|
|
|
if (current_width >= right_edge - 1) {
|
2003-05-05 04:54:15 +02:00
|
|
|
/* reset width and move to next superblock row */
|
2003-05-10 23:46:17 +02:00
|
|
|
current_width = -1;
|
2003-05-05 04:54:15 +02:00
|
|
|
current_height += 4;
|
|
|
|
|
|
|
|
/* fragment is now at the start of a new superblock row */
|
|
|
|
current_fragment += superblock_row_inc;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* iterate through all 16 fragments in a superblock */
|
|
|
|
for (j = 0; j < 16; j++) {
|
2006-07-20 00:42:31 +02:00
|
|
|
current_fragment += travel_width[j] + right_edge * travel_height[j];
|
2003-05-10 23:46:17 +02:00
|
|
|
current_width += travel_width[j];
|
2003-05-05 04:54:15 +02:00
|
|
|
current_height += travel_height[j];
|
|
|
|
|
|
|
|
/* check if the fragment is in bounds */
|
2003-05-10 23:46:17 +02:00
|
|
|
if ((current_width < right_edge) &&
|
2003-05-05 04:54:15 +02:00
|
|
|
(current_height < bottom_edge)) {
|
|
|
|
s->superblock_fragments[mapping_index] = current_fragment;
|
|
|
|
} else {
|
|
|
|
s->superblock_fragments[mapping_index] = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
mapping_index++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-05-10 23:46:17 +02:00
|
|
|
return 0; /* successful path out */
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function wipes out all of the fragment data.
|
|
|
|
*/
|
|
|
|
static void init_frame(Vp3DecodeContext *s, GetBitContext *gb)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/* zero out all of the fragment information */
|
|
|
|
s->coded_fragment_list_index = 0;
|
|
|
|
for (i = 0; i < s->fragment_count; i++) {
|
2008-06-09 18:26:28 +02:00
|
|
|
s->coeff_counts[i] = 0;
|
2005-05-21 04:06:27 +02:00
|
|
|
s->all_fragments[i].motion_x = 127;
|
|
|
|
s->all_fragments[i].motion_y = 127;
|
|
|
|
s->all_fragments[i].next_coeff= NULL;
|
2009-05-29 23:43:22 +02:00
|
|
|
s->all_fragments[i].qpi = 0;
|
2005-05-19 12:48:36 +02:00
|
|
|
s->coeffs[i].index=
|
|
|
|
s->coeffs[i].coeff=0;
|
|
|
|
s->coeffs[i].next= NULL;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2005-05-21 07:20:52 +02:00
|
|
|
* This function sets up the dequantization tables used for a particular
|
2003-05-05 04:54:15 +02:00
|
|
|
* frame.
|
|
|
|
*/
|
2009-05-29 23:43:22 +02:00
|
|
|
static void init_dequantizer(Vp3DecodeContext *s, int qpi)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
2009-05-29 23:43:22 +02:00
|
|
|
int ac_scale_factor = s->coded_ac_scale_factor[s->qps[qpi]];
|
|
|
|
int dc_scale_factor = s->coded_dc_scale_factor[s->qps[qpi]];
|
2006-10-03 19:12:48 +02:00
|
|
|
int i, plane, inter, qri, bmi, bmj, qistart;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2006-07-17 11:51:59 +02:00
|
|
|
for(inter=0; inter<2; inter++){
|
|
|
|
for(plane=0; plane<3; plane++){
|
|
|
|
int sum=0;
|
|
|
|
for(qri=0; qri<s->qr_count[inter][plane]; qri++){
|
|
|
|
sum+= s->qr_size[inter][plane][qri];
|
2009-05-29 23:43:22 +02:00
|
|
|
if(s->qps[qpi] <= sum)
|
2006-07-17 11:51:59 +02:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
qistart= sum - s->qr_size[inter][plane][qri];
|
|
|
|
bmi= s->qr_base[inter][plane][qri ];
|
|
|
|
bmj= s->qr_base[inter][plane][qri+1];
|
|
|
|
for(i=0; i<64; i++){
|
2009-05-29 23:43:22 +02:00
|
|
|
int coeff= ( 2*(sum -s->qps[qpi])*s->base_matrix[bmi][i]
|
|
|
|
- 2*(qistart-s->qps[qpi])*s->base_matrix[bmj][i]
|
2006-07-17 11:51:59 +02:00
|
|
|
+ s->qr_size[inter][plane][qri])
|
|
|
|
/ (2*s->qr_size[inter][plane][qri]);
|
|
|
|
|
2006-07-17 13:06:09 +02:00
|
|
|
int qmin= 8<<(inter + !i);
|
2006-07-17 11:51:59 +02:00
|
|
|
int qscale= i ? ac_scale_factor : dc_scale_factor;
|
|
|
|
|
2009-05-29 23:43:22 +02:00
|
|
|
s->qmat[qpi][inter][plane][s->dsp.idct_permutation[i]]= av_clip((qscale * coeff)/100 * 4, qmin, 4096);
|
2006-07-17 11:51:59 +02:00
|
|
|
}
|
2009-05-29 23:43:22 +02:00
|
|
|
// all DC coefficients use the same quant so as not to interfere with DC prediction
|
|
|
|
s->qmat[qpi][inter][plane][0] = s->qmat[0][inter][plane][0];
|
2006-07-17 11:51:59 +02:00
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2009-05-29 23:43:22 +02:00
|
|
|
memset(s->qscale_table, (FFMAX(s->qmat[0][0][0][1], s->qmat[0][0][1][1])+8)/16, 512); //FIXME finetune
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
2005-05-21 07:20:52 +02:00
|
|
|
/*
|
|
|
|
* This function initializes the loop filter boundary limits if the frame's
|
|
|
|
* quality index is different from the previous frame's.
|
2009-07-05 20:25:58 +02:00
|
|
|
*
|
|
|
|
* The filter_limit_values may not be larger than 127.
|
2005-05-21 07:20:52 +02:00
|
|
|
*/
|
|
|
|
static void init_loop_filter(Vp3DecodeContext *s)
|
|
|
|
{
|
|
|
|
int *bounding_values= s->bounding_values_array+127;
|
|
|
|
int filter_limit;
|
|
|
|
int x;
|
2009-07-05 20:25:58 +02:00
|
|
|
int value;
|
2005-05-21 07:20:52 +02:00
|
|
|
|
2009-05-29 23:43:22 +02:00
|
|
|
filter_limit = s->filter_limit_values[s->qps[0]];
|
2005-05-21 07:20:52 +02:00
|
|
|
|
|
|
|
/* set up the bounding values */
|
|
|
|
memset(s->bounding_values_array, 0, 256 * sizeof(int));
|
|
|
|
for (x = 0; x < filter_limit; x++) {
|
|
|
|
bounding_values[-x] = -x;
|
|
|
|
bounding_values[x] = x;
|
|
|
|
}
|
2009-07-05 20:25:58 +02:00
|
|
|
for (x = value = filter_limit; x < 128 && value; x++, value--) {
|
|
|
|
bounding_values[ x] = value;
|
|
|
|
bounding_values[-x] = -value;
|
|
|
|
}
|
|
|
|
if (value)
|
|
|
|
bounding_values[128] = value;
|
2008-10-17 05:18:08 +02:00
|
|
|
bounding_values[129] = bounding_values[130] = filter_limit * 0x02020202;
|
2005-05-21 07:20:52 +02:00
|
|
|
}
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
/*
|
2005-12-17 19:14:38 +01:00
|
|
|
* This function unpacks all of the superblock/macroblock/fragment coding
|
2003-05-05 04:54:15 +02:00
|
|
|
* information from the bitstream.
|
|
|
|
*/
|
2003-05-10 23:46:17 +02:00
|
|
|
static int unpack_superblocks(Vp3DecodeContext *s, GetBitContext *gb)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
|
|
|
int bit = 0;
|
|
|
|
int current_superblock = 0;
|
|
|
|
int current_run = 0;
|
2010-02-21 01:10:54 +01:00
|
|
|
int num_partial_superblocks = 0;
|
2003-05-19 03:22:46 +02:00
|
|
|
int first_c_fragment_seen;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
int i, j;
|
|
|
|
int current_fragment;
|
|
|
|
|
|
|
|
if (s->keyframe) {
|
|
|
|
memset(s->superblock_coding, SB_FULLY_CODED, s->superblock_count);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* unpack the list of partially-coded superblocks */
|
2007-08-09 02:13:31 +02:00
|
|
|
bit = get_bits1(gb);
|
2003-05-05 04:54:15 +02:00
|
|
|
while (current_superblock < s->superblock_count) {
|
2005-12-17 19:14:38 +01:00
|
|
|
current_run = get_vlc2(gb,
|
2010-02-21 01:10:47 +01:00
|
|
|
s->superblock_run_length_vlc.table, 6, 2) + 1;
|
|
|
|
if (current_run == 34)
|
2005-05-18 02:11:49 +02:00
|
|
|
current_run += get_bits(gb, 12);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2010-02-21 01:10:47 +01:00
|
|
|
if (current_superblock + current_run > s->superblock_count) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Invalid partially coded superblock run length\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
memset(s->superblock_coding + current_superblock, bit, current_run);
|
|
|
|
|
|
|
|
current_superblock += current_run;
|
2010-02-21 01:10:54 +01:00
|
|
|
if (bit)
|
|
|
|
num_partial_superblocks += current_run;
|
2010-02-21 01:10:47 +01:00
|
|
|
|
2010-02-21 01:10:58 +01:00
|
|
|
if (s->theora && current_run == MAXIMUM_LONG_BIT_RUN)
|
|
|
|
bit = get_bits1(gb);
|
|
|
|
else
|
2010-02-21 01:10:47 +01:00
|
|
|
bit ^= 1;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* unpack the list of fully coded superblocks if any of the blocks were
|
|
|
|
* not marked as partially coded in the previous step */
|
2010-02-21 01:10:54 +01:00
|
|
|
if (num_partial_superblocks < s->superblock_count) {
|
|
|
|
int superblocks_decoded = 0;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
current_superblock = 0;
|
2007-08-09 02:13:31 +02:00
|
|
|
bit = get_bits1(gb);
|
2010-02-21 01:10:54 +01:00
|
|
|
while (superblocks_decoded < s->superblock_count - num_partial_superblocks) {
|
2005-12-17 19:14:38 +01:00
|
|
|
current_run = get_vlc2(gb,
|
2010-02-21 01:10:54 +01:00
|
|
|
s->superblock_run_length_vlc.table, 6, 2) + 1;
|
|
|
|
if (current_run == 34)
|
2005-05-18 02:11:49 +02:00
|
|
|
current_run += get_bits(gb, 12);
|
2010-02-21 01:10:54 +01:00
|
|
|
|
|
|
|
for (j = 0; j < current_run; current_superblock++) {
|
|
|
|
if (current_superblock >= s->superblock_count) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Invalid fully coded superblock run length\n");
|
|
|
|
return -1;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2010-02-21 01:10:54 +01:00
|
|
|
|
|
|
|
/* skip any superblocks already marked as partially coded */
|
|
|
|
if (s->superblock_coding[current_superblock] == SB_NOT_CODED) {
|
2005-05-18 10:48:11 +02:00
|
|
|
s->superblock_coding[current_superblock] = 2*bit;
|
2010-02-21 01:10:54 +01:00
|
|
|
j++;
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2010-02-21 01:10:54 +01:00
|
|
|
superblocks_decoded += current_run;
|
|
|
|
|
2010-02-21 01:10:58 +01:00
|
|
|
if (s->theora && current_run == MAXIMUM_LONG_BIT_RUN)
|
|
|
|
bit = get_bits1(gb);
|
|
|
|
else
|
2010-02-21 01:10:54 +01:00
|
|
|
bit ^= 1;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* if there were partial blocks, initialize bitstream for
|
|
|
|
* unpacking fragment codings */
|
2010-02-21 01:10:54 +01:00
|
|
|
if (num_partial_superblocks) {
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
current_run = 0;
|
2007-08-09 02:13:31 +02:00
|
|
|
bit = get_bits1(gb);
|
2005-12-17 19:14:38 +01:00
|
|
|
/* toggle the bit because as soon as the first run length is
|
2003-05-05 04:54:15 +02:00
|
|
|
* fetched the bit will be toggled again */
|
|
|
|
bit ^= 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* figure out which fragments are coded; iterate through each
|
|
|
|
* superblock (all planes) */
|
|
|
|
s->coded_fragment_list_index = 0;
|
2005-05-19 12:48:36 +02:00
|
|
|
s->next_coeff= s->coeffs + s->fragment_count;
|
2003-05-10 18:06:33 +02:00
|
|
|
s->first_coded_y_fragment = s->first_coded_c_fragment = 0;
|
|
|
|
s->last_coded_y_fragment = s->last_coded_c_fragment = -1;
|
2003-05-19 03:22:46 +02:00
|
|
|
first_c_fragment_seen = 0;
|
2003-05-11 06:47:45 +02:00
|
|
|
memset(s->macroblock_coding, MODE_COPY, s->macroblock_count);
|
2003-05-05 04:54:15 +02:00
|
|
|
for (i = 0; i < s->superblock_count; i++) {
|
|
|
|
|
|
|
|
/* iterate through all 16 fragments in a superblock */
|
|
|
|
for (j = 0; j < 16; j++) {
|
|
|
|
|
|
|
|
/* if the fragment is in bounds, check its coding status */
|
|
|
|
current_fragment = s->superblock_fragments[i * 16 + j];
|
2003-05-10 23:46:17 +02:00
|
|
|
if (current_fragment >= s->fragment_count) {
|
2003-11-03 14:26:22 +01:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_superblocks(): bad fragment number (%d >= %d)\n",
|
2003-05-10 23:46:17 +02:00
|
|
|
current_fragment, s->fragment_count);
|
|
|
|
return 1;
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
if (current_fragment != -1) {
|
|
|
|
if (s->superblock_coding[i] == SB_NOT_CODED) {
|
|
|
|
|
|
|
|
/* copy all the fragments from the prior frame */
|
2005-12-17 19:14:38 +01:00
|
|
|
s->all_fragments[current_fragment].coding_method =
|
2003-05-05 04:54:15 +02:00
|
|
|
MODE_COPY;
|
|
|
|
|
|
|
|
} else if (s->superblock_coding[i] == SB_PARTIALLY_CODED) {
|
|
|
|
|
|
|
|
/* fragment may or may not be coded; this is the case
|
|
|
|
* that cares about the fragment coding runs */
|
2005-05-18 10:48:11 +02:00
|
|
|
if (current_run-- == 0) {
|
2003-05-05 04:54:15 +02:00
|
|
|
bit ^= 1;
|
2005-12-17 19:14:38 +01:00
|
|
|
current_run = get_vlc2(gb,
|
2005-05-18 10:48:11 +02:00
|
|
|
s->fragment_run_length_vlc.table, 5, 2);
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (bit) {
|
2005-12-17 19:14:38 +01:00
|
|
|
/* default mode; actual mode will be decoded in
|
2003-05-19 03:22:46 +02:00
|
|
|
* the next phase */
|
2005-12-17 19:14:38 +01:00
|
|
|
s->all_fragments[current_fragment].coding_method =
|
2003-05-05 04:54:15 +02:00
|
|
|
MODE_INTER_NO_MV;
|
2005-05-19 12:48:36 +02:00
|
|
|
s->all_fragments[current_fragment].next_coeff= s->coeffs + current_fragment;
|
2005-12-17 19:14:38 +01:00
|
|
|
s->coded_fragment_list[s->coded_fragment_list_index] =
|
2003-05-05 04:54:15 +02:00
|
|
|
current_fragment;
|
2006-07-19 22:57:44 +02:00
|
|
|
if ((current_fragment >= s->fragment_start[1]) &&
|
2003-05-19 03:22:46 +02:00
|
|
|
(s->last_coded_y_fragment == -1) &&
|
|
|
|
(!first_c_fragment_seen)) {
|
2003-05-10 18:06:33 +02:00
|
|
|
s->first_coded_c_fragment = s->coded_fragment_list_index;
|
|
|
|
s->last_coded_y_fragment = s->first_coded_c_fragment - 1;
|
2003-05-19 03:22:46 +02:00
|
|
|
first_c_fragment_seen = 1;
|
2003-05-10 18:06:33 +02:00
|
|
|
}
|
|
|
|
s->coded_fragment_list_index++;
|
2003-05-05 04:54:15 +02:00
|
|
|
} else {
|
|
|
|
/* not coded; copy this fragment from the prior frame */
|
|
|
|
s->all_fragments[current_fragment].coding_method =
|
|
|
|
MODE_COPY;
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* fragments are fully coded in this superblock; actual
|
|
|
|
* coding will be determined in next step */
|
2005-12-17 19:14:38 +01:00
|
|
|
s->all_fragments[current_fragment].coding_method =
|
2003-05-05 04:54:15 +02:00
|
|
|
MODE_INTER_NO_MV;
|
2005-05-19 12:48:36 +02:00
|
|
|
s->all_fragments[current_fragment].next_coeff= s->coeffs + current_fragment;
|
2005-12-17 19:14:38 +01:00
|
|
|
s->coded_fragment_list[s->coded_fragment_list_index] =
|
2003-05-05 04:54:15 +02:00
|
|
|
current_fragment;
|
2006-07-19 22:57:44 +02:00
|
|
|
if ((current_fragment >= s->fragment_start[1]) &&
|
2003-05-19 03:22:46 +02:00
|
|
|
(s->last_coded_y_fragment == -1) &&
|
|
|
|
(!first_c_fragment_seen)) {
|
2003-05-10 18:06:33 +02:00
|
|
|
s->first_coded_c_fragment = s->coded_fragment_list_index;
|
|
|
|
s->last_coded_y_fragment = s->first_coded_c_fragment - 1;
|
2003-05-19 03:22:46 +02:00
|
|
|
first_c_fragment_seen = 1;
|
2003-05-10 18:06:33 +02:00
|
|
|
}
|
|
|
|
s->coded_fragment_list_index++;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2003-05-10 18:06:33 +02:00
|
|
|
|
2003-05-19 03:22:46 +02:00
|
|
|
if (!first_c_fragment_seen)
|
|
|
|
/* only Y fragments coded in this frame */
|
2003-05-10 18:06:33 +02:00
|
|
|
s->last_coded_y_fragment = s->coded_fragment_list_index - 1;
|
2005-12-17 19:14:38 +01:00
|
|
|
else
|
2003-05-31 09:56:58 +02:00
|
|
|
/* end the list of coded C fragments */
|
2003-05-10 18:06:33 +02:00
|
|
|
s->last_coded_c_fragment = s->coded_fragment_list_index - 1;
|
2003-05-19 03:22:46 +02:00
|
|
|
|
2009-12-02 03:30:15 +01:00
|
|
|
for (i = 0; i < s->fragment_count - 1; i++) {
|
|
|
|
s->fast_fragment_list[i] = i + 1;
|
|
|
|
}
|
|
|
|
s->fast_fragment_list[s->fragment_count - 1] = -1;
|
|
|
|
|
|
|
|
if (s->last_coded_y_fragment == -1)
|
|
|
|
s->fragment_list_y_head = -1;
|
|
|
|
else {
|
|
|
|
s->fragment_list_y_head = s->first_coded_y_fragment;
|
|
|
|
s->fast_fragment_list[s->last_coded_y_fragment] = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (s->last_coded_c_fragment == -1)
|
|
|
|
s->fragment_list_c_head = -1;
|
|
|
|
else {
|
|
|
|
s->fragment_list_c_head = s->first_coded_c_fragment;
|
|
|
|
s->fast_fragment_list[s->last_coded_c_fragment] = -1;
|
|
|
|
}
|
|
|
|
|
2003-05-10 23:46:17 +02:00
|
|
|
return 0;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function unpacks all the coding mode data for individual macroblocks
|
|
|
|
* from the bitstream.
|
|
|
|
*/
|
2003-05-10 23:46:17 +02:00
|
|
|
static int unpack_modes(Vp3DecodeContext *s, GetBitContext *gb)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
2010-02-13 19:55:17 +01:00
|
|
|
int i, j, k, sb_x, sb_y;
|
2003-05-05 04:54:15 +02:00
|
|
|
int scheme;
|
|
|
|
int current_macroblock;
|
|
|
|
int current_fragment;
|
|
|
|
int coding_mode;
|
2008-06-25 16:14:58 +02:00
|
|
|
int custom_mode_alphabet[CODING_MODE_COUNT];
|
2010-02-13 19:59:21 +01:00
|
|
|
const int *alphabet;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
if (s->keyframe) {
|
|
|
|
for (i = 0; i < s->fragment_count; i++)
|
|
|
|
s->all_fragments[i].coding_method = MODE_INTRA;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* fetch the mode coding scheme for this frame */
|
|
|
|
scheme = get_bits(gb, 3);
|
|
|
|
|
|
|
|
/* is it a custom coding scheme? */
|
|
|
|
if (scheme == 0) {
|
2009-02-03 23:59:47 +01:00
|
|
|
for (i = 0; i < 8; i++)
|
|
|
|
custom_mode_alphabet[i] = MODE_INTER_NO_MV;
|
2003-05-05 04:54:15 +02:00
|
|
|
for (i = 0; i < 8; i++)
|
2008-06-25 16:14:58 +02:00
|
|
|
custom_mode_alphabet[get_bits(gb, 3)] = i;
|
2010-02-13 19:59:21 +01:00
|
|
|
alphabet = custom_mode_alphabet;
|
|
|
|
} else
|
|
|
|
alphabet = ModeAlphabet[scheme-1];
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
/* iterate through all of the macroblocks that contain 1 or more
|
|
|
|
* coded fragments */
|
2010-02-13 19:55:17 +01:00
|
|
|
for (sb_y = 0; sb_y < s->y_superblock_height; sb_y++) {
|
|
|
|
for (sb_x = 0; sb_x < s->y_superblock_width; sb_x++) {
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
for (j = 0; j < 4; j++) {
|
2010-02-13 19:55:17 +01:00
|
|
|
int mb_x = 2*sb_x + (j>>1);
|
|
|
|
int mb_y = 2*sb_y + (((j>>1)+j)&1);
|
2010-02-13 19:55:24 +01:00
|
|
|
int frags_coded = 0;
|
2010-02-13 19:55:17 +01:00
|
|
|
current_macroblock = mb_y * s->macroblock_width + mb_x;
|
|
|
|
|
2010-02-13 19:55:24 +01:00
|
|
|
if (mb_x >= s->macroblock_width || mb_y >= s->macroblock_height)
|
2003-05-05 04:54:15 +02:00
|
|
|
continue;
|
|
|
|
|
2010-02-13 19:55:21 +01:00
|
|
|
#define BLOCK_X (2*mb_x + (k&1))
|
|
|
|
#define BLOCK_Y (2*mb_y + (k>>1))
|
2010-02-13 19:55:24 +01:00
|
|
|
/* coding modes are only stored if the macroblock has at least one
|
|
|
|
* luma block coded, otherwise it must be INTER_NO_MV */
|
|
|
|
for (k = 0; k < 4; k++) {
|
|
|
|
current_fragment = BLOCK_Y*s->fragment_width + BLOCK_X;
|
|
|
|
if (s->all_fragments[current_fragment].coding_method != MODE_COPY)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (k == 4) {
|
|
|
|
s->macroblock_coding[current_macroblock] = MODE_INTER_NO_MV;
|
|
|
|
continue;
|
|
|
|
}
|
2010-02-13 19:55:21 +01:00
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
/* mode 7 means get 3 bits for each coding mode */
|
|
|
|
if (scheme == 7)
|
|
|
|
coding_mode = get_bits(gb, 3);
|
|
|
|
else
|
2010-02-13 19:59:21 +01:00
|
|
|
coding_mode = alphabet
|
2005-05-18 01:39:23 +02:00
|
|
|
[get_vlc2(gb, s->mode_code_vlc.table, 3, 3)];
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2003-05-11 06:47:45 +02:00
|
|
|
s->macroblock_coding[current_macroblock] = coding_mode;
|
2010-02-13 19:55:21 +01:00
|
|
|
for (k = 0; k < 4; k++) {
|
2005-12-17 19:14:38 +01:00
|
|
|
current_fragment =
|
2010-02-13 19:55:21 +01:00
|
|
|
BLOCK_Y*s->fragment_width + BLOCK_X;
|
|
|
|
if (s->all_fragments[current_fragment].coding_method !=
|
|
|
|
MODE_COPY)
|
|
|
|
s->all_fragments[current_fragment].coding_method =
|
|
|
|
coding_mode;
|
|
|
|
}
|
|
|
|
for (k = 0; k < 2; k++) {
|
|
|
|
current_fragment = s->fragment_start[k+1] +
|
|
|
|
mb_y*(s->fragment_width>>1) + mb_x;
|
2005-12-17 19:14:38 +01:00
|
|
|
if (s->all_fragments[current_fragment].coding_method !=
|
2003-05-05 04:54:15 +02:00
|
|
|
MODE_COPY)
|
|
|
|
s->all_fragments[current_fragment].coding_method =
|
|
|
|
coding_mode;
|
|
|
|
}
|
|
|
|
}
|
2010-02-13 19:55:17 +01:00
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
}
|
2003-05-10 23:46:17 +02:00
|
|
|
|
|
|
|
return 0;
|
2003-05-07 04:30:37 +02:00
|
|
|
}
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
/*
|
|
|
|
* This function unpacks all the motion vectors for the individual
|
|
|
|
* macroblocks from the bitstream.
|
|
|
|
*/
|
2003-05-10 23:46:17 +02:00
|
|
|
static int unpack_vectors(Vp3DecodeContext *s, GetBitContext *gb)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
2010-02-13 19:55:27 +01:00
|
|
|
int j, k, sb_x, sb_y;
|
2003-05-05 04:54:15 +02:00
|
|
|
int coding_mode;
|
|
|
|
int motion_x[6];
|
|
|
|
int motion_y[6];
|
|
|
|
int last_motion_x = 0;
|
|
|
|
int last_motion_y = 0;
|
|
|
|
int prior_last_motion_x = 0;
|
|
|
|
int prior_last_motion_y = 0;
|
|
|
|
int current_macroblock;
|
|
|
|
int current_fragment;
|
|
|
|
|
2008-10-01 16:48:16 +02:00
|
|
|
if (s->keyframe)
|
2008-10-01 16:48:00 +02:00
|
|
|
return 0;
|
2008-10-01 16:48:35 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
memset(motion_x, 0, 6 * sizeof(int));
|
|
|
|
memset(motion_y, 0, 6 * sizeof(int));
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
/* coding mode 0 is the VLC scheme; 1 is the fixed code scheme */
|
|
|
|
coding_mode = get_bits1(gb);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
/* iterate through all of the macroblocks that contain 1 or more
|
|
|
|
* coded fragments */
|
2010-02-13 19:55:17 +01:00
|
|
|
for (sb_y = 0; sb_y < s->y_superblock_height; sb_y++) {
|
|
|
|
for (sb_x = 0; sb_x < s->y_superblock_width; sb_x++) {
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
for (j = 0; j < 4; j++) {
|
2010-02-13 19:55:17 +01:00
|
|
|
int mb_x = 2*sb_x + (j>>1);
|
|
|
|
int mb_y = 2*sb_y + (((j>>1)+j)&1);
|
|
|
|
current_macroblock = mb_y * s->macroblock_width + mb_x;
|
|
|
|
|
|
|
|
if (mb_x >= s->macroblock_width || mb_y >= s->macroblock_height ||
|
2008-10-01 16:48:54 +02:00
|
|
|
(s->macroblock_coding[current_macroblock] == MODE_COPY))
|
|
|
|
continue;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
switch (s->macroblock_coding[current_macroblock]) {
|
|
|
|
|
|
|
|
case MODE_INTER_PLUS_MV:
|
|
|
|
case MODE_GOLDEN_MV:
|
|
|
|
/* all 6 fragments use the same motion vector */
|
|
|
|
if (coding_mode == 0) {
|
|
|
|
motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
|
|
|
motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
|
|
|
} else {
|
|
|
|
motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
|
|
|
|
motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
|
2003-05-10 23:46:17 +02:00
|
|
|
}
|
2005-05-21 03:12:41 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
/* vector maintenance, only on MODE_INTER_PLUS_MV */
|
|
|
|
if (s->macroblock_coding[current_macroblock] ==
|
|
|
|
MODE_INTER_PLUS_MV) {
|
2008-09-03 02:10:30 +02:00
|
|
|
prior_last_motion_x = last_motion_x;
|
|
|
|
prior_last_motion_y = last_motion_y;
|
2008-10-01 16:48:54 +02:00
|
|
|
last_motion_x = motion_x[0];
|
|
|
|
last_motion_y = motion_y[0];
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MODE_INTER_FOURMV:
|
|
|
|
/* vector maintenance */
|
|
|
|
prior_last_motion_x = last_motion_x;
|
|
|
|
prior_last_motion_y = last_motion_y;
|
|
|
|
|
|
|
|
/* fetch 4 vectors from the bitstream, one for each
|
|
|
|
* Y fragment, then average for the C fragment vectors */
|
|
|
|
motion_x[4] = motion_y[4] = 0;
|
|
|
|
for (k = 0; k < 4; k++) {
|
2010-02-13 19:55:21 +01:00
|
|
|
current_fragment = BLOCK_Y*s->fragment_width + BLOCK_X;
|
2010-02-13 19:55:27 +01:00
|
|
|
if (s->all_fragments[current_fragment].coding_method != MODE_COPY) {
|
2008-10-01 16:48:54 +02:00
|
|
|
if (coding_mode == 0) {
|
|
|
|
motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
|
|
|
motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
2008-09-03 02:17:11 +02:00
|
|
|
} else {
|
2008-10-01 16:48:54 +02:00
|
|
|
motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];
|
|
|
|
motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];
|
2008-09-03 02:17:11 +02:00
|
|
|
}
|
2008-10-01 16:48:54 +02:00
|
|
|
last_motion_x = motion_x[k];
|
|
|
|
last_motion_y = motion_y[k];
|
|
|
|
} else {
|
|
|
|
motion_x[k] = 0;
|
|
|
|
motion_y[k] = 0;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2008-10-01 16:48:54 +02:00
|
|
|
motion_x[4] += motion_x[k];
|
|
|
|
motion_y[4] += motion_y[k];
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
motion_x[5]=
|
|
|
|
motion_x[4]= RSHIFT(motion_x[4], 2);
|
|
|
|
motion_y[5]=
|
|
|
|
motion_y[4]= RSHIFT(motion_y[4], 2);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MODE_INTER_LAST_MV:
|
|
|
|
/* all 6 fragments use the last motion vector */
|
|
|
|
motion_x[0] = last_motion_x;
|
|
|
|
motion_y[0] = last_motion_y;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
/* no vector maintenance (last vector remains the
|
|
|
|
* last vector) */
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MODE_INTER_PRIOR_LAST:
|
|
|
|
/* all 6 fragments use the motion vector prior to the
|
|
|
|
* last motion vector */
|
|
|
|
motion_x[0] = prior_last_motion_x;
|
|
|
|
motion_y[0] = prior_last_motion_y;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
/* vector maintenance */
|
|
|
|
prior_last_motion_x = last_motion_x;
|
|
|
|
prior_last_motion_y = last_motion_y;
|
|
|
|
last_motion_x = motion_x[0];
|
|
|
|
last_motion_y = motion_y[0];
|
|
|
|
break;
|
2003-05-07 04:30:37 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
default:
|
|
|
|
/* covers intra, inter without MV, golden without MV */
|
2009-12-19 08:33:10 +01:00
|
|
|
motion_x[0] = 0;
|
|
|
|
motion_y[0] = 0;
|
2003-05-07 04:30:37 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
/* no vector maintenance */
|
|
|
|
break;
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-10-01 16:48:54 +02:00
|
|
|
/* assign the motion vectors to the correct fragments */
|
2010-02-13 19:55:21 +01:00
|
|
|
for (k = 0; k < 4; k++) {
|
2008-10-01 16:48:54 +02:00
|
|
|
current_fragment =
|
2010-02-13 19:55:21 +01:00
|
|
|
BLOCK_Y*s->fragment_width + BLOCK_X;
|
2009-12-19 08:33:10 +01:00
|
|
|
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
|
2009-12-19 08:34:11 +01:00
|
|
|
s->all_fragments[current_fragment].motion_x = motion_x[k];
|
|
|
|
s->all_fragments[current_fragment].motion_y = motion_y[k];
|
2009-12-19 08:33:10 +01:00
|
|
|
} else {
|
|
|
|
s->all_fragments[current_fragment].motion_x = motion_x[0];
|
|
|
|
s->all_fragments[current_fragment].motion_y = motion_y[0];
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2010-02-13 19:55:21 +01:00
|
|
|
for (k = 0; k < 2; k++) {
|
|
|
|
current_fragment = s->fragment_start[k+1] +
|
|
|
|
mb_y*(s->fragment_width>>1) + mb_x;
|
|
|
|
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
|
|
|
|
s->all_fragments[current_fragment].motion_x = motion_x[k+4];
|
|
|
|
s->all_fragments[current_fragment].motion_y = motion_y[k+4];
|
|
|
|
} else {
|
|
|
|
s->all_fragments[current_fragment].motion_x = motion_x[0];
|
|
|
|
s->all_fragments[current_fragment].motion_y = motion_y[0];
|
|
|
|
}
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2010-02-13 19:55:17 +01:00
|
|
|
}
|
2008-10-01 16:48:54 +02:00
|
|
|
}
|
2003-05-10 23:46:17 +02:00
|
|
|
|
|
|
|
return 0;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
2009-05-29 23:43:22 +02:00
|
|
|
static int unpack_block_qpis(Vp3DecodeContext *s, GetBitContext *gb)
|
|
|
|
{
|
|
|
|
int qpi, i, j, bit, run_length, blocks_decoded, num_blocks_at_qpi;
|
|
|
|
int num_blocks = s->coded_fragment_list_index;
|
|
|
|
|
|
|
|
for (qpi = 0; qpi < s->nqps-1 && num_blocks > 0; qpi++) {
|
|
|
|
i = blocks_decoded = num_blocks_at_qpi = 0;
|
|
|
|
|
|
|
|
bit = get_bits1(gb);
|
|
|
|
|
|
|
|
do {
|
|
|
|
run_length = get_vlc2(gb, s->superblock_run_length_vlc.table, 6, 2) + 1;
|
|
|
|
if (run_length == 34)
|
|
|
|
run_length += get_bits(gb, 12);
|
|
|
|
blocks_decoded += run_length;
|
|
|
|
|
|
|
|
if (!bit)
|
|
|
|
num_blocks_at_qpi += run_length;
|
|
|
|
|
|
|
|
for (j = 0; j < run_length; i++) {
|
2009-09-23 14:42:12 +02:00
|
|
|
if (i >= s->coded_fragment_list_index)
|
2009-05-29 23:43:22 +02:00
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (s->all_fragments[s->coded_fragment_list[i]].qpi == qpi) {
|
|
|
|
s->all_fragments[s->coded_fragment_list[i]].qpi += bit;
|
|
|
|
j++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-02-21 01:10:51 +01:00
|
|
|
if (run_length == MAXIMUM_LONG_BIT_RUN)
|
2009-05-29 23:43:22 +02:00
|
|
|
bit = get_bits1(gb);
|
|
|
|
else
|
|
|
|
bit ^= 1;
|
|
|
|
} while (blocks_decoded < num_blocks);
|
|
|
|
|
|
|
|
num_blocks -= num_blocks_at_qpi;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-12-17 19:14:38 +01:00
|
|
|
/*
|
2003-05-05 04:54:15 +02:00
|
|
|
* This function is called by unpack_dct_coeffs() to extract the VLCs from
|
|
|
|
* the bitstream. The VLCs encode tokens which are used to unpack DCT
|
|
|
|
* data. This function unpacks all the VLCs for either the Y plane or both
|
|
|
|
* C planes, and is called for DC coefficients or different AC coefficient
|
|
|
|
* levels (since different coefficient types require different VLC tables.
|
|
|
|
*
|
|
|
|
* This function returns a residual eob run. E.g, if a particular token gave
|
|
|
|
* instructions to EOB the next 5 fragments and there were only 2 fragments
|
|
|
|
* left in the current fragment range, 3 would be returned so that it could
|
|
|
|
* be passed into the next call to this same function.
|
|
|
|
*/
|
|
|
|
static int unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb,
|
|
|
|
VLC *table, int coeff_index,
|
2009-12-02 03:30:15 +01:00
|
|
|
int y_plane,
|
2003-05-05 04:54:15 +02:00
|
|
|
int eob_run)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int token;
|
2005-05-19 04:43:21 +02:00
|
|
|
int zero_run = 0;
|
|
|
|
DCTELEM coeff = 0;
|
2003-05-05 04:54:15 +02:00
|
|
|
Vp3Fragment *fragment;
|
2005-05-19 04:43:21 +02:00
|
|
|
int bits_to_get;
|
2009-12-02 03:30:15 +01:00
|
|
|
int next_fragment;
|
|
|
|
int previous_fragment;
|
|
|
|
int fragment_num;
|
|
|
|
int *list_head;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2009-09-21 03:37:50 +02:00
|
|
|
/* local references to structure members to avoid repeated deferences */
|
|
|
|
uint8_t *perm= s->scantable.permutated;
|
|
|
|
int *coded_fragment_list = s->coded_fragment_list;
|
|
|
|
Vp3Fragment *all_fragments = s->all_fragments;
|
|
|
|
uint8_t *coeff_counts = s->coeff_counts;
|
|
|
|
VLC_TYPE (*vlc_table)[2] = table->table;
|
2009-12-02 03:30:15 +01:00
|
|
|
int *fast_fragment_list = s->fast_fragment_list;
|
2009-09-21 03:37:50 +02:00
|
|
|
|
2009-12-02 03:30:15 +01:00
|
|
|
if (y_plane) {
|
|
|
|
next_fragment = s->fragment_list_y_head;
|
|
|
|
list_head = &s->fragment_list_y_head;
|
|
|
|
} else {
|
|
|
|
next_fragment = s->fragment_list_c_head;
|
|
|
|
list_head = &s->fragment_list_c_head;
|
2003-05-12 06:28:35 +02:00
|
|
|
}
|
|
|
|
|
2009-12-02 03:30:15 +01:00
|
|
|
i = next_fragment;
|
|
|
|
previous_fragment = -1; /* this indicates that the previous fragment is actually the list head */
|
|
|
|
while (i != -1) {
|
|
|
|
fragment_num = coded_fragment_list[i];
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2009-12-02 03:30:15 +01:00
|
|
|
if (coeff_counts[fragment_num] > coeff_index) {
|
|
|
|
previous_fragment = i;
|
|
|
|
i = fast_fragment_list[i];
|
2003-05-05 04:54:15 +02:00
|
|
|
continue;
|
2009-12-02 03:30:15 +01:00
|
|
|
}
|
2009-09-21 03:37:50 +02:00
|
|
|
fragment = &all_fragments[fragment_num];
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
if (!eob_run) {
|
|
|
|
/* decode a VLC into a token */
|
2009-09-21 03:37:50 +02:00
|
|
|
token = get_vlc2(gb, vlc_table, 5, 3);
|
2003-05-05 04:54:15 +02:00
|
|
|
/* use the token to get a zero run, a coefficient, and an eob run */
|
2005-05-19 04:43:21 +02:00
|
|
|
if (token <= 6) {
|
|
|
|
eob_run = eob_run_base[token];
|
|
|
|
if (eob_run_get_bits[token])
|
|
|
|
eob_run += get_bits(gb, eob_run_get_bits[token]);
|
|
|
|
coeff = zero_run = 0;
|
|
|
|
} else {
|
|
|
|
bits_to_get = coeff_get_bits[token];
|
2009-09-23 07:38:12 +02:00
|
|
|
if (bits_to_get)
|
|
|
|
bits_to_get = get_bits(gb, bits_to_get);
|
|
|
|
coeff = coeff_tables[token][bits_to_get];
|
2005-05-19 04:43:21 +02:00
|
|
|
|
|
|
|
zero_run = zero_run_base[token];
|
|
|
|
if (zero_run_get_bits[token])
|
|
|
|
zero_run += get_bits(gb, zero_run_get_bits[token]);
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!eob_run) {
|
2009-09-21 03:37:50 +02:00
|
|
|
coeff_counts[fragment_num] += zero_run;
|
|
|
|
if (coeff_counts[fragment_num] < 64){
|
2005-05-19 12:48:36 +02:00
|
|
|
fragment->next_coeff->coeff= coeff;
|
2009-09-21 03:37:50 +02:00
|
|
|
fragment->next_coeff->index= perm[coeff_counts[fragment_num]++]; //FIXME perm here already?
|
2005-05-19 12:48:36 +02:00
|
|
|
fragment->next_coeff->next= s->next_coeff;
|
|
|
|
s->next_coeff->next=NULL;
|
|
|
|
fragment->next_coeff= s->next_coeff++;
|
|
|
|
}
|
2009-12-02 03:30:15 +01:00
|
|
|
/* previous fragment is now this fragment */
|
|
|
|
previous_fragment = i;
|
2003-05-05 04:54:15 +02:00
|
|
|
} else {
|
2009-09-21 03:37:50 +02:00
|
|
|
coeff_counts[fragment_num] |= 128;
|
2003-05-05 04:54:15 +02:00
|
|
|
eob_run--;
|
2009-12-02 03:30:15 +01:00
|
|
|
/* remove this fragment from the list */
|
|
|
|
if (previous_fragment != -1)
|
|
|
|
fast_fragment_list[previous_fragment] = fast_fragment_list[i];
|
|
|
|
else
|
|
|
|
*list_head = fast_fragment_list[i];
|
|
|
|
/* previous fragment remains unchanged */
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2009-12-02 03:30:15 +01:00
|
|
|
|
|
|
|
i = fast_fragment_list[i];
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return eob_run;
|
|
|
|
}
|
|
|
|
|
2009-09-22 17:58:08 +02:00
|
|
|
static void reverse_dc_prediction(Vp3DecodeContext *s,
|
|
|
|
int first_fragment,
|
|
|
|
int fragment_width,
|
|
|
|
int fragment_height);
|
2003-05-05 04:54:15 +02:00
|
|
|
/*
|
|
|
|
* This function unpacks all of the DCT coefficient data from the
|
|
|
|
* bitstream.
|
|
|
|
*/
|
2003-05-10 23:46:17 +02:00
|
|
|
static int unpack_dct_coeffs(Vp3DecodeContext *s, GetBitContext *gb)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int dc_y_table;
|
|
|
|
int dc_c_table;
|
|
|
|
int ac_y_table;
|
|
|
|
int ac_c_table;
|
|
|
|
int residual_eob_run = 0;
|
2009-12-02 05:06:27 +01:00
|
|
|
VLC *y_tables[64];
|
|
|
|
VLC *c_tables[64];
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-05-27 01:14:25 +02:00
|
|
|
/* fetch the DC table indexes */
|
2003-05-05 04:54:15 +02:00
|
|
|
dc_y_table = get_bits(gb, 4);
|
|
|
|
dc_c_table = get_bits(gb, 4);
|
|
|
|
|
|
|
|
/* unpack the Y plane DC coefficients */
|
2005-12-17 19:14:38 +01:00
|
|
|
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_y_table], 0,
|
2009-12-02 03:30:15 +01:00
|
|
|
1, residual_eob_run);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2009-09-22 17:58:08 +02:00
|
|
|
/* reverse prediction of the Y-plane DC coefficients */
|
|
|
|
reverse_dc_prediction(s, 0, s->fragment_width, s->fragment_height);
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
/* unpack the C plane DC coefficients */
|
|
|
|
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
|
2009-12-02 03:30:15 +01:00
|
|
|
0, residual_eob_run);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2009-09-22 17:58:08 +02:00
|
|
|
/* reverse prediction of the C-plane DC coefficients */
|
|
|
|
if (!(s->avctx->flags & CODEC_FLAG_GRAY))
|
|
|
|
{
|
|
|
|
reverse_dc_prediction(s, s->fragment_start[1],
|
|
|
|
s->fragment_width / 2, s->fragment_height / 2);
|
|
|
|
reverse_dc_prediction(s, s->fragment_start[2],
|
|
|
|
s->fragment_width / 2, s->fragment_height / 2);
|
|
|
|
}
|
|
|
|
|
2008-05-27 01:14:25 +02:00
|
|
|
/* fetch the AC table indexes */
|
2003-05-05 04:54:15 +02:00
|
|
|
ac_y_table = get_bits(gb, 4);
|
|
|
|
ac_c_table = get_bits(gb, 4);
|
|
|
|
|
2009-12-02 05:06:27 +01:00
|
|
|
/* build tables of AC VLC tables */
|
2003-05-05 04:54:15 +02:00
|
|
|
for (i = 1; i <= 5; i++) {
|
2009-12-02 05:06:27 +01:00
|
|
|
y_tables[i] = &s->ac_vlc_1[ac_y_table];
|
|
|
|
c_tables[i] = &s->ac_vlc_1[ac_c_table];
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
for (i = 6; i <= 14; i++) {
|
2009-12-02 05:06:27 +01:00
|
|
|
y_tables[i] = &s->ac_vlc_2[ac_y_table];
|
|
|
|
c_tables[i] = &s->ac_vlc_2[ac_c_table];
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
for (i = 15; i <= 27; i++) {
|
2009-12-02 05:06:27 +01:00
|
|
|
y_tables[i] = &s->ac_vlc_3[ac_y_table];
|
|
|
|
c_tables[i] = &s->ac_vlc_3[ac_c_table];
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
for (i = 28; i <= 63; i++) {
|
2009-12-02 05:06:27 +01:00
|
|
|
y_tables[i] = &s->ac_vlc_4[ac_y_table];
|
|
|
|
c_tables[i] = &s->ac_vlc_4[ac_c_table];
|
|
|
|
}
|
|
|
|
|
|
|
|
/* decode all AC coefficents */
|
|
|
|
for (i = 1; i <= 63; i++) {
|
|
|
|
if (s->fragment_list_y_head != -1)
|
|
|
|
residual_eob_run = unpack_vlcs(s, gb, y_tables[i], i,
|
|
|
|
1, residual_eob_run);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2009-12-02 05:06:27 +01:00
|
|
|
if (s->fragment_list_c_head != -1)
|
|
|
|
residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
|
|
|
|
0, residual_eob_run);
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
2003-05-10 23:46:17 +02:00
|
|
|
|
|
|
|
return 0;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function reverses the DC prediction for each coded fragment in
|
2005-12-17 19:14:38 +01:00
|
|
|
* the frame. Much of this function is adapted directly from the original
|
2003-05-05 04:54:15 +02:00
|
|
|
* VP3 source code.
|
|
|
|
*/
|
|
|
|
#define COMPATIBLE_FRAME(x) \
|
|
|
|
(compatible_frame[s->all_fragments[x].coding_method] == current_frame_type)
|
2005-05-19 12:48:36 +02:00
|
|
|
#define DC_COEFF(u) (s->coeffs[u].index ? 0 : s->coeffs[u].coeff) //FIXME do somethin to simplify this
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
static void reverse_dc_prediction(Vp3DecodeContext *s,
|
|
|
|
int first_fragment,
|
|
|
|
int fragment_width,
|
2005-12-17 19:14:38 +01:00
|
|
|
int fragment_height)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
|
|
|
|
|
|
|
#define PUL 8
|
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|
|
#define PU 4
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|
|
#define PUR 2
|
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|
|
#define PL 1
|
|
|
|
|
|
|
|
int x, y;
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|
|
|
int i = first_fragment;
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|
|
|
|
2006-10-06 13:33:57 +02:00
|
|
|
int predicted_dc;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
/* DC values for the left, up-left, up, and up-right fragments */
|
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|
|
int vl, vul, vu, vur;
|
|
|
|
|
2008-05-27 01:14:25 +02:00
|
|
|
/* indexes for the left, up-left, up, and up-right fragments */
|
2003-05-05 04:54:15 +02:00
|
|
|
int l, ul, u, ur;
|
|
|
|
|
2005-12-17 19:14:38 +01:00
|
|
|
/*
|
2003-05-05 04:54:15 +02:00
|
|
|
* The 6 fields mean:
|
|
|
|
* 0: up-left multiplier
|
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|
|
* 1: up multiplier
|
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|
|
* 2: up-right multiplier
|
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|
|
* 3: left multiplier
|
|
|
|
*/
|
2009-09-05 19:28:20 +02:00
|
|
|
static const int predictor_transform[16][4] = {
|
2006-07-20 00:21:45 +02:00
|
|
|
{ 0, 0, 0, 0},
|
|
|
|
{ 0, 0, 0,128}, // PL
|
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|
{ 0, 0,128, 0}, // PUR
|
|
|
|
{ 0, 0, 53, 75}, // PUR|PL
|
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|
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{ 0,128, 0, 0}, // PU
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{ 0, 64, 0, 64}, // PU|PL
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{ 0,128, 0, 0}, // PU|PUR
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|
{ 0, 0, 53, 75}, // PU|PUR|PL
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|
{128, 0, 0, 0}, // PUL
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{ 0, 0, 0,128}, // PUL|PL
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|
{ 64, 0, 64, 0}, // PUL|PUR
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{ 0, 0, 53, 75}, // PUL|PUR|PL
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{ 0,128, 0, 0}, // PUL|PU
|
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{-104,116, 0,116}, // PUL|PU|PL
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{ 24, 80, 24, 0}, // PUL|PU|PUR
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|
{-104,116, 0,116} // PUL|PU|PUR|PL
|
2003-05-05 04:54:15 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
/* This table shows which types of blocks can use other blocks for
|
|
|
|
* prediction. For example, INTRA is the only mode in this table to
|
|
|
|
* have a frame number of 0. That means INTRA blocks can only predict
|
2005-12-17 19:14:38 +01:00
|
|
|
* from other INTRA blocks. There are 2 golden frame coding types;
|
2003-05-05 04:54:15 +02:00
|
|
|
* blocks encoding in these modes can only predict from other blocks
|
|
|
|
* that were encoded with these 1 of these 2 modes. */
|
2009-12-06 16:33:48 +01:00
|
|
|
static const unsigned char compatible_frame[9] = {
|
2003-05-05 04:54:15 +02:00
|
|
|
1, /* MODE_INTER_NO_MV */
|
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|
|
0, /* MODE_INTRA */
|
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|
|
1, /* MODE_INTER_PLUS_MV */
|
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|
1, /* MODE_INTER_LAST_MV */
|
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|
|
1, /* MODE_INTER_PRIOR_MV */
|
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|
|
2, /* MODE_USING_GOLDEN */
|
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|
|
2, /* MODE_GOLDEN_MV */
|
2009-12-06 16:33:48 +01:00
|
|
|
1, /* MODE_INTER_FOUR_MV */
|
|
|
|
3 /* MODE_COPY */
|
2003-05-05 04:54:15 +02:00
|
|
|
};
|
|
|
|
int current_frame_type;
|
|
|
|
|
|
|
|
/* there is a last DC predictor for each of the 3 frame types */
|
|
|
|
short last_dc[3];
|
|
|
|
|
|
|
|
int transform = 0;
|
|
|
|
|
|
|
|
vul = vu = vur = vl = 0;
|
|
|
|
last_dc[0] = last_dc[1] = last_dc[2] = 0;
|
|
|
|
|
|
|
|
/* for each fragment row... */
|
|
|
|
for (y = 0; y < fragment_height; y++) {
|
|
|
|
|
|
|
|
/* for each fragment in a row... */
|
|
|
|
for (x = 0; x < fragment_width; x++, i++) {
|
|
|
|
|
|
|
|
/* reverse prediction if this block was coded */
|
|
|
|
if (s->all_fragments[i].coding_method != MODE_COPY) {
|
|
|
|
|
2005-12-17 19:14:38 +01:00
|
|
|
current_frame_type =
|
2003-05-05 04:54:15 +02:00
|
|
|
compatible_frame[s->all_fragments[i].coding_method];
|
|
|
|
|
2006-07-19 23:20:56 +02:00
|
|
|
transform= 0;
|
|
|
|
if(x){
|
|
|
|
l= i-1;
|
2005-05-19 12:48:36 +02:00
|
|
|
vl = DC_COEFF(l);
|
2009-12-06 16:33:48 +01:00
|
|
|
if(COMPATIBLE_FRAME(l))
|
2006-07-20 00:21:45 +02:00
|
|
|
transform |= PL;
|
2006-07-19 23:20:56 +02:00
|
|
|
}
|
|
|
|
if(y){
|
|
|
|
u= i-fragment_width;
|
2005-05-19 12:48:36 +02:00
|
|
|
vu = DC_COEFF(u);
|
2009-12-06 16:33:48 +01:00
|
|
|
if(COMPATIBLE_FRAME(u))
|
2006-07-20 00:21:45 +02:00
|
|
|
transform |= PU;
|
2006-07-19 23:20:56 +02:00
|
|
|
if(x){
|
|
|
|
ul= i-fragment_width-1;
|
|
|
|
vul = DC_COEFF(ul);
|
2009-12-06 16:33:48 +01:00
|
|
|
if(COMPATIBLE_FRAME(ul))
|
2006-07-20 00:21:45 +02:00
|
|
|
transform |= PUL;
|
2006-07-19 23:20:56 +02:00
|
|
|
}
|
|
|
|
if(x + 1 < fragment_width){
|
|
|
|
ur= i-fragment_width+1;
|
|
|
|
vur = DC_COEFF(ur);
|
2009-12-06 16:33:48 +01:00
|
|
|
if(COMPATIBLE_FRAME(ur))
|
2006-07-20 00:21:45 +02:00
|
|
|
transform |= PUR;
|
2006-07-19 23:20:56 +02:00
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (transform == 0) {
|
|
|
|
|
|
|
|
/* if there were no fragments to predict from, use last
|
|
|
|
* DC saved */
|
2005-05-19 12:48:36 +02:00
|
|
|
predicted_dc = last_dc[current_frame_type];
|
2003-05-05 04:54:15 +02:00
|
|
|
} else {
|
|
|
|
|
|
|
|
/* apply the appropriate predictor transform */
|
|
|
|
predicted_dc =
|
|
|
|
(predictor_transform[transform][0] * vul) +
|
|
|
|
(predictor_transform[transform][1] * vu) +
|
|
|
|
(predictor_transform[transform][2] * vur) +
|
|
|
|
(predictor_transform[transform][3] * vl);
|
|
|
|
|
2006-07-20 00:42:31 +02:00
|
|
|
predicted_dc /= 128;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
/* check for outranging on the [ul u l] and
|
|
|
|
* [ul u ur l] predictors */
|
2009-12-06 16:31:58 +01:00
|
|
|
if ((transform == 15) || (transform == 13)) {
|
2006-10-12 01:17:58 +02:00
|
|
|
if (FFABS(predicted_dc - vu) > 128)
|
2003-05-05 04:54:15 +02:00
|
|
|
predicted_dc = vu;
|
2006-10-12 01:17:58 +02:00
|
|
|
else if (FFABS(predicted_dc - vl) > 128)
|
2003-05-05 04:54:15 +02:00
|
|
|
predicted_dc = vl;
|
2006-10-12 01:17:58 +02:00
|
|
|
else if (FFABS(predicted_dc - vul) > 128)
|
2003-05-05 04:54:15 +02:00
|
|
|
predicted_dc = vul;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-05-19 12:48:36 +02:00
|
|
|
/* at long last, apply the predictor */
|
|
|
|
if(s->coeffs[i].index){
|
|
|
|
*s->next_coeff= s->coeffs[i];
|
|
|
|
s->coeffs[i].index=0;
|
|
|
|
s->coeffs[i].coeff=0;
|
|
|
|
s->coeffs[i].next= s->next_coeff++;
|
|
|
|
}
|
|
|
|
s->coeffs[i].coeff += predicted_dc;
|
2003-05-05 04:54:15 +02:00
|
|
|
/* save the DC */
|
2005-05-19 12:48:36 +02:00
|
|
|
last_dc[current_frame_type] = DC_COEFF(i);
|
2008-06-09 18:26:28 +02:00
|
|
|
if(DC_COEFF(i) && !(s->coeff_counts[i]&127)){
|
|
|
|
s->coeff_counts[i]= 129;
|
2005-05-19 12:48:36 +02:00
|
|
|
// s->all_fragments[i].next_coeff= s->next_coeff;
|
|
|
|
s->coeffs[i].next= s->next_coeff;
|
|
|
|
(s->next_coeff++)->next=NULL;
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-02-12 23:01:29 +01:00
|
|
|
static void apply_loop_filter(Vp3DecodeContext *s, int plane, int ystart, int yend)
|
2010-02-12 23:01:25 +01:00
|
|
|
{
|
|
|
|
int x, y;
|
|
|
|
int *bounding_values= s->bounding_values_array+127;
|
|
|
|
|
2010-02-12 23:01:32 +01:00
|
|
|
int width = s->fragment_width >> !!plane;
|
|
|
|
int height = s->fragment_height >> !!plane;
|
|
|
|
int fragment = s->fragment_start [plane] + ystart * width;
|
|
|
|
int stride = s->current_frame.linesize[plane];
|
|
|
|
uint8_t *plane_data = s->current_frame.data [plane];
|
|
|
|
if (!s->flipped_image) stride = -stride;
|
2010-02-12 23:01:38 +01:00
|
|
|
plane_data += s->data_offset[plane] + 8*ystart*stride;
|
2010-02-12 23:01:32 +01:00
|
|
|
|
|
|
|
for (y = ystart; y < yend; y++) {
|
|
|
|
|
|
|
|
for (x = 0; x < width; x++) {
|
|
|
|
/* This code basically just deblocks on the edges of coded blocks.
|
|
|
|
* However, it has to be much more complicated because of the
|
|
|
|
* braindamaged deblock ordering used in VP3/Theora. Order matters
|
|
|
|
* because some pixels get filtered twice. */
|
|
|
|
if( s->all_fragments[fragment].coding_method != MODE_COPY )
|
|
|
|
{
|
|
|
|
/* do not perform left edge filter for left columns frags */
|
|
|
|
if (x > 0) {
|
|
|
|
s->dsp.vp3_h_loop_filter(
|
2010-02-12 23:01:38 +01:00
|
|
|
plane_data + 8*x,
|
2010-02-12 23:01:32 +01:00
|
|
|
stride, bounding_values);
|
|
|
|
}
|
2010-02-12 23:01:25 +01:00
|
|
|
|
2010-02-12 23:01:32 +01:00
|
|
|
/* do not perform top edge filter for top row fragments */
|
|
|
|
if (y > 0) {
|
|
|
|
s->dsp.vp3_v_loop_filter(
|
2010-02-12 23:01:38 +01:00
|
|
|
plane_data + 8*x,
|
2010-02-12 23:01:32 +01:00
|
|
|
stride, bounding_values);
|
|
|
|
}
|
2010-02-12 23:01:25 +01:00
|
|
|
|
2010-02-12 23:01:32 +01:00
|
|
|
/* do not perform right edge filter for right column
|
|
|
|
* fragments or if right fragment neighbor is also coded
|
|
|
|
* in this frame (it will be filtered in next iteration) */
|
|
|
|
if ((x < width - 1) &&
|
|
|
|
(s->all_fragments[fragment + 1].coding_method == MODE_COPY)) {
|
|
|
|
s->dsp.vp3_h_loop_filter(
|
2010-02-12 23:01:38 +01:00
|
|
|
plane_data + 8*x + 8,
|
2010-02-12 23:01:32 +01:00
|
|
|
stride, bounding_values);
|
2010-02-12 23:01:25 +01:00
|
|
|
}
|
|
|
|
|
2010-02-12 23:01:32 +01:00
|
|
|
/* do not perform bottom edge filter for bottom row
|
|
|
|
* fragments or if bottom fragment neighbor is also coded
|
|
|
|
* in this frame (it will be filtered in the next row) */
|
|
|
|
if ((y < height - 1) &&
|
|
|
|
(s->all_fragments[fragment + width].coding_method == MODE_COPY)) {
|
|
|
|
s->dsp.vp3_v_loop_filter(
|
2010-02-12 23:01:38 +01:00
|
|
|
plane_data + 8*x + 8*stride,
|
2010-02-12 23:01:32 +01:00
|
|
|
stride, bounding_values);
|
|
|
|
}
|
2010-02-12 23:01:25 +01:00
|
|
|
}
|
2010-02-12 23:01:32 +01:00
|
|
|
|
|
|
|
fragment++;
|
2010-02-12 23:01:25 +01:00
|
|
|
}
|
2010-02-12 23:01:38 +01:00
|
|
|
plane_data += 8*stride;
|
2010-02-12 23:01:32 +01:00
|
|
|
}
|
2010-02-12 23:01:25 +01:00
|
|
|
}
|
|
|
|
|
2010-02-12 23:01:35 +01:00
|
|
|
/**
|
|
|
|
* called when all pixels up to row y are complete
|
|
|
|
*/
|
|
|
|
static void vp3_draw_horiz_band(Vp3DecodeContext *s, int y)
|
|
|
|
{
|
|
|
|
int h, cy;
|
|
|
|
int offset[4];
|
|
|
|
|
|
|
|
if(s->avctx->draw_horiz_band==NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
h= y - s->last_slice_end;
|
|
|
|
y -= h;
|
|
|
|
|
|
|
|
if (!s->flipped_image) {
|
|
|
|
if (y == 0)
|
|
|
|
h -= s->height - s->avctx->height; // account for non-mod16
|
|
|
|
y = s->height - y - h;
|
|
|
|
}
|
|
|
|
|
|
|
|
cy = y >> 1;
|
|
|
|
offset[0] = s->current_frame.linesize[0]*y;
|
|
|
|
offset[1] = s->current_frame.linesize[1]*cy;
|
|
|
|
offset[2] = s->current_frame.linesize[2]*cy;
|
|
|
|
offset[3] = 0;
|
|
|
|
|
|
|
|
emms_c();
|
|
|
|
s->avctx->draw_horiz_band(s->avctx, &s->current_frame, offset, y, 3, h);
|
|
|
|
s->last_slice_end= y + h;
|
|
|
|
}
|
|
|
|
|
2005-05-21 06:43:36 +02:00
|
|
|
/*
|
|
|
|
* Perform the final rendering for a particular slice of data.
|
|
|
|
* The slice number ranges from 0..(macroblock_height - 1).
|
|
|
|
*/
|
|
|
|
static void render_slice(Vp3DecodeContext *s, int slice)
|
|
|
|
{
|
2006-07-19 22:57:44 +02:00
|
|
|
int x;
|
2005-05-21 06:43:36 +02:00
|
|
|
int16_t *dequantizer;
|
2010-02-17 21:36:20 +01:00
|
|
|
LOCAL_ALIGNED_16(DCTELEM, block, [64]);
|
2005-05-21 06:43:36 +02:00
|
|
|
int motion_x = 0xdeadbeef, motion_y = 0xdeadbeef;
|
|
|
|
int motion_halfpel_index;
|
|
|
|
uint8_t *motion_source;
|
|
|
|
int plane;
|
|
|
|
|
|
|
|
if (slice >= s->macroblock_height)
|
|
|
|
return;
|
|
|
|
|
|
|
|
for (plane = 0; plane < 3; plane++) {
|
2010-02-12 23:01:38 +01:00
|
|
|
uint8_t *output_plane = s->current_frame.data [plane] + s->data_offset[plane];
|
|
|
|
uint8_t * last_plane = s-> last_frame.data [plane] + s->data_offset[plane];
|
|
|
|
uint8_t *golden_plane = s-> golden_frame.data [plane] + s->data_offset[plane];
|
2006-07-19 22:57:44 +02:00
|
|
|
int stride = s->current_frame.linesize[plane];
|
|
|
|
int plane_width = s->width >> !!plane;
|
|
|
|
int plane_height = s->height >> !!plane;
|
|
|
|
int y = slice * FRAGMENT_PIXELS << !plane ;
|
|
|
|
int slice_height = y + (FRAGMENT_PIXELS << !plane);
|
2010-02-13 19:55:21 +01:00
|
|
|
int i = s->fragment_start[plane] + (y>>3)*(s->fragment_width>>!!plane);
|
2006-07-19 22:57:44 +02:00
|
|
|
|
|
|
|
if (!s->flipped_image) stride = -stride;
|
2010-02-13 19:59:25 +01:00
|
|
|
if (CONFIG_GRAY && plane && (s->avctx->flags & CODEC_FLAG_GRAY))
|
|
|
|
continue;
|
2005-05-21 06:43:36 +02:00
|
|
|
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2006-10-12 01:17:58 +02:00
|
|
|
if(FFABS(stride) > 2048)
|
2005-05-21 06:43:36 +02:00
|
|
|
return; //various tables are fixed size
|
|
|
|
|
|
|
|
/* for each fragment row in the slice (both of them)... */
|
|
|
|
for (; y < slice_height; y += 8) {
|
|
|
|
|
|
|
|
/* for each fragment in a row... */
|
|
|
|
for (x = 0; x < plane_width; x += 8, i++) {
|
2010-02-12 23:01:38 +01:00
|
|
|
int first_pixel = y*stride + x;
|
2005-05-21 06:43:36 +02:00
|
|
|
|
|
|
|
if ((i < 0) || (i >= s->fragment_count)) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, " vp3:render_slice(): bad fragment number (%d)\n", i);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* transform if this block was coded */
|
2010-02-13 19:59:25 +01:00
|
|
|
if (s->all_fragments[i].coding_method != MODE_COPY) {
|
2005-05-21 06:43:36 +02:00
|
|
|
|
|
|
|
if ((s->all_fragments[i].coding_method == MODE_USING_GOLDEN) ||
|
|
|
|
(s->all_fragments[i].coding_method == MODE_GOLDEN_MV))
|
|
|
|
motion_source= golden_plane;
|
2005-12-17 19:14:38 +01:00
|
|
|
else
|
2005-05-21 06:43:36 +02:00
|
|
|
motion_source= last_plane;
|
|
|
|
|
2010-02-12 23:01:38 +01:00
|
|
|
motion_source += first_pixel;
|
2005-05-21 06:43:36 +02:00
|
|
|
motion_halfpel_index = 0;
|
|
|
|
|
|
|
|
/* sort out the motion vector if this fragment is coded
|
|
|
|
* using a motion vector method */
|
|
|
|
if ((s->all_fragments[i].coding_method > MODE_INTRA) &&
|
|
|
|
(s->all_fragments[i].coding_method != MODE_USING_GOLDEN)) {
|
|
|
|
int src_x, src_y;
|
|
|
|
motion_x = s->all_fragments[i].motion_x;
|
|
|
|
motion_y = s->all_fragments[i].motion_y;
|
|
|
|
if(plane){
|
|
|
|
motion_x= (motion_x>>1) | (motion_x&1);
|
|
|
|
motion_y= (motion_y>>1) | (motion_y&1);
|
|
|
|
}
|
|
|
|
|
|
|
|
src_x= (motion_x>>1) + x;
|
|
|
|
src_y= (motion_y>>1) + y;
|
|
|
|
if ((motion_x == 127) || (motion_y == 127))
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, " help! got invalid motion vector! (%X, %X)\n", motion_x, motion_y);
|
|
|
|
|
|
|
|
motion_halfpel_index = motion_x & 0x01;
|
|
|
|
motion_source += (motion_x >> 1);
|
|
|
|
|
|
|
|
motion_halfpel_index |= (motion_y & 0x01) << 1;
|
|
|
|
motion_source += ((motion_y >> 1) * stride);
|
|
|
|
|
|
|
|
if(src_x<0 || src_y<0 || src_x + 9 >= plane_width || src_y + 9 >= plane_height){
|
|
|
|
uint8_t *temp= s->edge_emu_buffer;
|
|
|
|
if(stride<0) temp -= 9*stride;
|
|
|
|
else temp += 9*stride;
|
|
|
|
|
|
|
|
ff_emulated_edge_mc(temp, motion_source, stride, 9, 9, src_x, src_y, plane_width, plane_height);
|
|
|
|
motion_source= temp;
|
|
|
|
}
|
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-05-21 06:43:36 +02:00
|
|
|
|
|
|
|
/* first, take care of copying a block from either the
|
|
|
|
* previous or the golden frame */
|
|
|
|
if (s->all_fragments[i].coding_method != MODE_INTRA) {
|
2005-12-17 19:14:38 +01:00
|
|
|
/* Note, it is possible to implement all MC cases with
|
|
|
|
put_no_rnd_pixels_l2 which would look more like the
|
|
|
|
VP3 source but this would be slower as
|
2005-05-21 06:43:36 +02:00
|
|
|
put_no_rnd_pixels_tab is better optimzed */
|
|
|
|
if(motion_halfpel_index != 3){
|
|
|
|
s->dsp.put_no_rnd_pixels_tab[1][motion_halfpel_index](
|
2010-02-12 23:01:38 +01:00
|
|
|
output_plane + first_pixel,
|
2005-05-21 06:43:36 +02:00
|
|
|
motion_source, stride, 8);
|
|
|
|
}else{
|
|
|
|
int d= (motion_x ^ motion_y)>>31; // d is 0 if motion_x and _y have the same sign, else -1
|
|
|
|
s->dsp.put_no_rnd_pixels_l2[1](
|
2010-02-12 23:01:38 +01:00
|
|
|
output_plane + first_pixel,
|
2005-12-17 19:14:38 +01:00
|
|
|
motion_source - d,
|
|
|
|
motion_source + stride + 1 + d,
|
2005-05-21 06:43:36 +02:00
|
|
|
stride, 8);
|
|
|
|
}
|
2009-05-29 23:43:22 +02:00
|
|
|
dequantizer = s->qmat[s->all_fragments[i].qpi][1][plane];
|
2005-05-21 06:43:36 +02:00
|
|
|
}else{
|
2009-05-29 23:43:22 +02:00
|
|
|
dequantizer = s->qmat[s->all_fragments[i].qpi][0][plane];
|
2005-05-21 06:43:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* dequantize the DCT coefficients */
|
|
|
|
if(s->avctx->idct_algo==FF_IDCT_VP3){
|
|
|
|
Coeff *coeff= s->coeffs + i;
|
2008-12-10 22:35:17 +01:00
|
|
|
s->dsp.clear_block(block);
|
2005-05-21 06:43:36 +02:00
|
|
|
while(coeff->next){
|
|
|
|
block[coeff->index]= coeff->coeff * dequantizer[coeff->index];
|
|
|
|
coeff= coeff->next;
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
Coeff *coeff= s->coeffs + i;
|
2008-12-10 22:35:17 +01:00
|
|
|
s->dsp.clear_block(block);
|
2005-05-21 06:43:36 +02:00
|
|
|
while(coeff->next){
|
|
|
|
block[coeff->index]= (coeff->coeff * dequantizer[coeff->index] + 2)>>2;
|
|
|
|
coeff= coeff->next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* invert DCT and place (or add) in final output */
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-05-21 06:43:36 +02:00
|
|
|
if (s->all_fragments[i].coding_method == MODE_INTRA) {
|
|
|
|
if(s->avctx->idct_algo!=FF_IDCT_VP3)
|
|
|
|
block[0] += 128<<3;
|
|
|
|
s->dsp.idct_put(
|
2010-02-12 23:01:38 +01:00
|
|
|
output_plane + first_pixel,
|
2005-05-21 06:43:36 +02:00
|
|
|
stride,
|
|
|
|
block);
|
|
|
|
} else {
|
|
|
|
s->dsp.idct_add(
|
2010-02-12 23:01:38 +01:00
|
|
|
output_plane + first_pixel,
|
2005-05-21 06:43:36 +02:00
|
|
|
stride,
|
|
|
|
block);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/* copy directly from the previous frame */
|
|
|
|
s->dsp.put_pixels_tab[1][0](
|
2010-02-12 23:01:38 +01:00
|
|
|
output_plane + first_pixel,
|
|
|
|
last_plane + first_pixel,
|
2005-05-21 06:43:36 +02:00
|
|
|
stride, 8);
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
2010-02-12 23:01:29 +01:00
|
|
|
// Filter the previous block row. We can't filter the current row yet
|
|
|
|
// since it needs pixels from the next row
|
|
|
|
if (y > 0)
|
|
|
|
apply_loop_filter(s, plane, (y>>3)-1, (y>>3));
|
2005-05-21 06:43:36 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* this looks like a good place for slice dispatch... */
|
|
|
|
/* algorithm:
|
|
|
|
* if (slice == s->macroblock_height - 1)
|
2005-05-21 07:20:52 +02:00
|
|
|
* dispatch (both last slice & 2nd-to-last slice);
|
|
|
|
* else if (slice > 0)
|
|
|
|
* dispatch (slice - 1);
|
2005-05-21 06:43:36 +02:00
|
|
|
*/
|
|
|
|
|
2010-02-12 23:01:35 +01:00
|
|
|
// now that we've filtered the last rows, they're safe to display
|
|
|
|
if (slice)
|
|
|
|
vp3_draw_horiz_band(s, 16*slice);
|
2005-05-21 06:43:36 +02:00
|
|
|
}
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
/*
|
|
|
|
* This is the ffmpeg/libavcodec API init function.
|
|
|
|
*/
|
2008-03-21 04:11:20 +01:00
|
|
|
static av_cold int vp3_decode_init(AVCodecContext *avctx)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
|
|
|
Vp3DecodeContext *s = avctx->priv_data;
|
2006-07-17 11:51:59 +02:00
|
|
|
int i, inter, plane;
|
2003-05-10 23:46:17 +02:00
|
|
|
int c_width;
|
|
|
|
int c_height;
|
|
|
|
int y_superblock_count;
|
|
|
|
int c_superblock_count;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2003-12-08 12:32:06 +01:00
|
|
|
if (avctx->codec_tag == MKTAG('V','P','3','0'))
|
2005-12-22 02:10:11 +01:00
|
|
|
s->version = 0;
|
2003-12-08 12:32:06 +01:00
|
|
|
else
|
2005-12-22 02:10:11 +01:00
|
|
|
s->version = 1;
|
2003-12-08 12:32:06 +01:00
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
s->avctx = avctx;
|
2009-05-22 23:32:13 +02:00
|
|
|
s->width = FFALIGN(avctx->width, 16);
|
|
|
|
s->height = FFALIGN(avctx->height, 16);
|
2003-05-05 04:54:15 +02:00
|
|
|
avctx->pix_fmt = PIX_FMT_YUV420P;
|
2009-05-11 06:34:23 +02:00
|
|
|
avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
|
2005-05-17 13:12:04 +02:00
|
|
|
if(avctx->idct_algo==FF_IDCT_AUTO)
|
|
|
|
avctx->idct_algo=FF_IDCT_VP3;
|
2003-05-05 04:54:15 +02:00
|
|
|
dsputil_init(&s->dsp, avctx);
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-05-17 13:31:57 +02:00
|
|
|
ff_init_scantable(s->dsp.idct_permutation, &s->scantable, ff_zigzag_direct);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
/* initialize to an impossible value which will force a recalculation
|
|
|
|
* in the first frame decode */
|
2009-05-29 23:43:22 +02:00
|
|
|
for (i = 0; i < 3; i++)
|
|
|
|
s->qps[i] = -1;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2003-05-10 23:46:17 +02:00
|
|
|
s->y_superblock_width = (s->width + 31) / 32;
|
|
|
|
s->y_superblock_height = (s->height + 31) / 32;
|
|
|
|
y_superblock_count = s->y_superblock_width * s->y_superblock_height;
|
|
|
|
|
|
|
|
/* work out the dimensions for the C planes */
|
|
|
|
c_width = s->width / 2;
|
|
|
|
c_height = s->height / 2;
|
|
|
|
s->c_superblock_width = (c_width + 31) / 32;
|
|
|
|
s->c_superblock_height = (c_height + 31) / 32;
|
|
|
|
c_superblock_count = s->c_superblock_width * s->c_superblock_height;
|
|
|
|
|
|
|
|
s->superblock_count = y_superblock_count + (c_superblock_count * 2);
|
|
|
|
s->u_superblock_start = y_superblock_count;
|
|
|
|
s->v_superblock_start = s->u_superblock_start + c_superblock_count;
|
2003-05-05 04:54:15 +02:00
|
|
|
s->superblock_coding = av_malloc(s->superblock_count);
|
|
|
|
|
|
|
|
s->macroblock_width = (s->width + 15) / 16;
|
|
|
|
s->macroblock_height = (s->height + 15) / 16;
|
|
|
|
s->macroblock_count = s->macroblock_width * s->macroblock_height;
|
|
|
|
|
|
|
|
s->fragment_width = s->width / FRAGMENT_PIXELS;
|
|
|
|
s->fragment_height = s->height / FRAGMENT_PIXELS;
|
|
|
|
|
|
|
|
/* fragment count covers all 8x8 blocks for all 3 planes */
|
|
|
|
s->fragment_count = s->fragment_width * s->fragment_height * 3 / 2;
|
2006-07-19 22:57:44 +02:00
|
|
|
s->fragment_start[1] = s->fragment_width * s->fragment_height;
|
|
|
|
s->fragment_start[2] = s->fragment_width * s->fragment_height * 5 / 4;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
s->all_fragments = av_malloc(s->fragment_count * sizeof(Vp3Fragment));
|
2008-06-09 18:26:28 +02:00
|
|
|
s->coeff_counts = av_malloc(s->fragment_count * sizeof(*s->coeff_counts));
|
2005-05-19 12:48:36 +02:00
|
|
|
s->coeffs = av_malloc(s->fragment_count * sizeof(Coeff) * 65);
|
2003-05-05 04:54:15 +02:00
|
|
|
s->coded_fragment_list = av_malloc(s->fragment_count * sizeof(int));
|
2009-12-02 03:30:15 +01:00
|
|
|
s->fast_fragment_list = av_malloc(s->fragment_count * sizeof(int));
|
2009-09-24 08:33:16 +02:00
|
|
|
if (!s->superblock_coding || !s->all_fragments || !s->coeff_counts ||
|
2009-12-02 03:30:15 +01:00
|
|
|
!s->coeffs || !s->coded_fragment_list || !s->fast_fragment_list) {
|
2009-09-24 08:33:16 +02:00
|
|
|
vp3_decode_end(avctx);
|
|
|
|
return -1;
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2003-10-11 19:44:21 +02:00
|
|
|
if (!s->theora_tables)
|
|
|
|
{
|
2006-08-17 10:08:28 +02:00
|
|
|
for (i = 0; i < 64; i++) {
|
2005-12-22 02:10:11 +01:00
|
|
|
s->coded_dc_scale_factor[i] = vp31_dc_scale_factor[i];
|
|
|
|
s->coded_ac_scale_factor[i] = vp31_ac_scale_factor[i];
|
2006-07-17 11:51:59 +02:00
|
|
|
s->base_matrix[0][i] = vp31_intra_y_dequant[i];
|
|
|
|
s->base_matrix[1][i] = vp31_intra_c_dequant[i];
|
|
|
|
s->base_matrix[2][i] = vp31_inter_dequant[i];
|
2005-12-22 02:10:11 +01:00
|
|
|
s->filter_limit_values[i] = vp31_filter_limit_values[i];
|
2006-08-17 10:08:28 +02:00
|
|
|
}
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2006-07-17 11:51:59 +02:00
|
|
|
for(inter=0; inter<2; inter++){
|
|
|
|
for(plane=0; plane<3; plane++){
|
|
|
|
s->qr_count[inter][plane]= 1;
|
|
|
|
s->qr_size [inter][plane][0]= 63;
|
|
|
|
s->qr_base [inter][plane][0]=
|
|
|
|
s->qr_base [inter][plane][1]= 2*inter + (!!plane)*!inter;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-05-20 01:59:10 +02:00
|
|
|
/* init VLC tables */
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
|
|
|
|
|
|
/* DC histograms */
|
|
|
|
init_vlc(&s->dc_vlc[i], 5, 32,
|
|
|
|
&dc_bias[i][0][1], 4, 2,
|
|
|
|
&dc_bias[i][0][0], 4, 2, 0);
|
|
|
|
|
|
|
|
/* group 1 AC histograms */
|
|
|
|
init_vlc(&s->ac_vlc_1[i], 5, 32,
|
|
|
|
&ac_bias_0[i][0][1], 4, 2,
|
|
|
|
&ac_bias_0[i][0][0], 4, 2, 0);
|
|
|
|
|
|
|
|
/* group 2 AC histograms */
|
|
|
|
init_vlc(&s->ac_vlc_2[i], 5, 32,
|
|
|
|
&ac_bias_1[i][0][1], 4, 2,
|
|
|
|
&ac_bias_1[i][0][0], 4, 2, 0);
|
|
|
|
|
|
|
|
/* group 3 AC histograms */
|
|
|
|
init_vlc(&s->ac_vlc_3[i], 5, 32,
|
|
|
|
&ac_bias_2[i][0][1], 4, 2,
|
|
|
|
&ac_bias_2[i][0][0], 4, 2, 0);
|
|
|
|
|
|
|
|
/* group 4 AC histograms */
|
|
|
|
init_vlc(&s->ac_vlc_4[i], 5, 32,
|
|
|
|
&ac_bias_3[i][0][1], 4, 2,
|
|
|
|
&ac_bias_3[i][0][0], 4, 2, 0);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
|
|
|
|
|
|
/* DC histograms */
|
2009-07-06 11:22:39 +02:00
|
|
|
if (init_vlc(&s->dc_vlc[i], 5, 32,
|
2005-05-20 01:59:10 +02:00
|
|
|
&s->huffman_table[i][0][1], 4, 2,
|
2009-07-06 11:22:39 +02:00
|
|
|
&s->huffman_table[i][0][0], 4, 2, 0) < 0)
|
|
|
|
goto vlc_fail;
|
2005-05-20 01:59:10 +02:00
|
|
|
|
|
|
|
/* group 1 AC histograms */
|
2009-07-06 11:22:39 +02:00
|
|
|
if (init_vlc(&s->ac_vlc_1[i], 5, 32,
|
2005-05-20 01:59:10 +02:00
|
|
|
&s->huffman_table[i+16][0][1], 4, 2,
|
2009-07-06 11:22:39 +02:00
|
|
|
&s->huffman_table[i+16][0][0], 4, 2, 0) < 0)
|
|
|
|
goto vlc_fail;
|
2005-05-20 01:59:10 +02:00
|
|
|
|
|
|
|
/* group 2 AC histograms */
|
2009-07-06 11:22:39 +02:00
|
|
|
if (init_vlc(&s->ac_vlc_2[i], 5, 32,
|
2005-05-20 01:59:10 +02:00
|
|
|
&s->huffman_table[i+16*2][0][1], 4, 2,
|
2009-07-06 11:22:39 +02:00
|
|
|
&s->huffman_table[i+16*2][0][0], 4, 2, 0) < 0)
|
|
|
|
goto vlc_fail;
|
2005-05-20 01:59:10 +02:00
|
|
|
|
|
|
|
/* group 3 AC histograms */
|
2009-07-06 11:22:39 +02:00
|
|
|
if (init_vlc(&s->ac_vlc_3[i], 5, 32,
|
2005-05-20 01:59:10 +02:00
|
|
|
&s->huffman_table[i+16*3][0][1], 4, 2,
|
2009-07-06 11:22:39 +02:00
|
|
|
&s->huffman_table[i+16*3][0][0], 4, 2, 0) < 0)
|
|
|
|
goto vlc_fail;
|
2005-05-20 01:59:10 +02:00
|
|
|
|
|
|
|
/* group 4 AC histograms */
|
2009-07-06 11:22:39 +02:00
|
|
|
if (init_vlc(&s->ac_vlc_4[i], 5, 32,
|
2005-05-20 01:59:10 +02:00
|
|
|
&s->huffman_table[i+16*4][0][1], 4, 2,
|
2009-07-06 11:22:39 +02:00
|
|
|
&s->huffman_table[i+16*4][0][0], 4, 2, 0) < 0)
|
|
|
|
goto vlc_fail;
|
2005-05-20 01:59:10 +02:00
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
2005-05-18 02:11:49 +02:00
|
|
|
init_vlc(&s->superblock_run_length_vlc, 6, 34,
|
|
|
|
&superblock_run_length_vlc_table[0][1], 4, 2,
|
|
|
|
&superblock_run_length_vlc_table[0][0], 4, 2, 0);
|
|
|
|
|
2005-11-13 18:48:27 +01:00
|
|
|
init_vlc(&s->fragment_run_length_vlc, 5, 30,
|
2005-05-18 01:39:23 +02:00
|
|
|
&fragment_run_length_vlc_table[0][1], 4, 2,
|
|
|
|
&fragment_run_length_vlc_table[0][0], 4, 2, 0);
|
|
|
|
|
|
|
|
init_vlc(&s->mode_code_vlc, 3, 8,
|
|
|
|
&mode_code_vlc_table[0][1], 2, 1,
|
|
|
|
&mode_code_vlc_table[0][0], 2, 1, 0);
|
|
|
|
|
|
|
|
init_vlc(&s->motion_vector_vlc, 6, 63,
|
|
|
|
&motion_vector_vlc_table[0][1], 2, 1,
|
|
|
|
&motion_vector_vlc_table[0][0], 2, 1, 0);
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
/* work out the block mapping tables */
|
|
|
|
s->superblock_fragments = av_malloc(s->superblock_count * 16 * sizeof(int));
|
2003-05-11 06:47:45 +02:00
|
|
|
s->macroblock_coding = av_malloc(s->macroblock_count + 1);
|
2010-02-13 19:55:21 +01:00
|
|
|
if (!s->superblock_fragments || !s->macroblock_coding) {
|
2009-09-24 08:33:16 +02:00
|
|
|
vp3_decode_end(avctx);
|
|
|
|
return -1;
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
init_block_mapping(s);
|
|
|
|
|
2003-05-07 04:30:37 +02:00
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
s->current_frame.data[i] = NULL;
|
|
|
|
s->last_frame.data[i] = NULL;
|
|
|
|
s->golden_frame.data[i] = NULL;
|
2003-05-06 05:11:20 +02:00
|
|
|
}
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
return 0;
|
2009-07-06 11:22:39 +02:00
|
|
|
|
|
|
|
vlc_fail:
|
|
|
|
av_log(avctx, AV_LOG_FATAL, "Invalid huffman table\n");
|
|
|
|
return -1;
|
2003-05-05 04:54:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is the ffmpeg/libavcodec API frame decode function.
|
|
|
|
*/
|
2005-12-17 19:14:38 +01:00
|
|
|
static int vp3_decode_frame(AVCodecContext *avctx,
|
2003-05-05 04:54:15 +02:00
|
|
|
void *data, int *data_size,
|
2009-04-07 17:59:50 +02:00
|
|
|
AVPacket *avpkt)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
2009-04-07 17:59:50 +02:00
|
|
|
const uint8_t *buf = avpkt->data;
|
|
|
|
int buf_size = avpkt->size;
|
2003-05-05 04:54:15 +02:00
|
|
|
Vp3DecodeContext *s = avctx->priv_data;
|
|
|
|
GetBitContext gb;
|
|
|
|
static int counter = 0;
|
2005-05-21 06:43:36 +02:00
|
|
|
int i;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
init_get_bits(&gb, buf, buf_size * 8);
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2003-10-11 19:44:21 +02:00
|
|
|
if (s->theora && get_bits1(&gb))
|
|
|
|
{
|
2005-12-22 02:10:11 +01:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Header packet passed to frame decoder, skipping\n");
|
|
|
|
return -1;
|
2003-10-11 19:44:21 +02:00
|
|
|
}
|
2003-12-08 12:32:06 +01:00
|
|
|
|
|
|
|
s->keyframe = !get_bits1(&gb);
|
|
|
|
if (!s->theora)
|
2005-12-22 02:10:11 +01:00
|
|
|
skip_bits(&gb, 1);
|
2009-05-29 23:43:22 +02:00
|
|
|
for (i = 0; i < 3; i++)
|
|
|
|
s->last_qps[i] = s->qps[i];
|
2006-07-17 15:09:45 +02:00
|
|
|
|
2009-05-29 23:43:22 +02:00
|
|
|
s->nqps=0;
|
2006-07-17 15:09:45 +02:00
|
|
|
do{
|
2009-05-29 23:43:22 +02:00
|
|
|
s->qps[s->nqps++]= get_bits(&gb, 6);
|
|
|
|
} while(s->theora >= 0x030200 && s->nqps<3 && get_bits1(&gb));
|
|
|
|
for (i = s->nqps; i < 3; i++)
|
|
|
|
s->qps[i] = -1;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2003-12-08 19:26:22 +01:00
|
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
2005-12-22 02:10:11 +01:00
|
|
|
av_log(s->avctx, AV_LOG_INFO, " VP3 %sframe #%d: Q index = %d\n",
|
2009-05-29 23:43:22 +02:00
|
|
|
s->keyframe?"key":"", counter, s->qps[0]);
|
2003-05-05 04:54:15 +02:00
|
|
|
counter++;
|
|
|
|
|
2009-05-29 23:43:22 +02:00
|
|
|
if (s->qps[0] != s->last_qps[0])
|
2005-05-21 07:20:52 +02:00
|
|
|
init_loop_filter(s);
|
2009-05-29 23:43:22 +02:00
|
|
|
|
|
|
|
for (i = 0; i < s->nqps; i++)
|
|
|
|
// reinit all dequantizers if the first one changed, because
|
|
|
|
// the DC of the first quantizer must be used for all matrices
|
|
|
|
if (s->qps[i] != s->last_qps[i] || s->qps[0] != s->last_qps[0])
|
|
|
|
init_dequantizer(s, i);
|
2003-05-31 09:56:58 +02:00
|
|
|
|
2008-09-30 00:04:35 +02:00
|
|
|
if (avctx->skip_frame >= AVDISCARD_NONKEY && !s->keyframe)
|
|
|
|
return buf_size;
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
if (s->keyframe) {
|
2005-12-22 02:10:11 +01:00
|
|
|
if (!s->theora)
|
|
|
|
{
|
|
|
|
skip_bits(&gb, 4); /* width code */
|
|
|
|
skip_bits(&gb, 4); /* height code */
|
|
|
|
if (s->version)
|
|
|
|
{
|
|
|
|
s->version = get_bits(&gb, 5);
|
|
|
|
if (counter == 1)
|
|
|
|
av_log(s->avctx, AV_LOG_DEBUG, "VP version: %d\n", s->version);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (s->version || s->theora)
|
|
|
|
{
|
|
|
|
if (get_bits1(&gb))
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Warning, unsupported keyframe coding type?!\n");
|
|
|
|
skip_bits(&gb, 2); /* reserved? */
|
|
|
|
}
|
2003-12-08 12:32:06 +01:00
|
|
|
|
2003-05-12 06:28:35 +02:00
|
|
|
if (s->last_frame.data[0] == s->golden_frame.data[0]) {
|
|
|
|
if (s->golden_frame.data[0])
|
|
|
|
avctx->release_buffer(avctx, &s->golden_frame);
|
2003-08-19 18:18:48 +02:00
|
|
|
s->last_frame= s->golden_frame; /* ensure that we catch any access to this released frame */
|
2003-05-12 06:28:35 +02:00
|
|
|
} else {
|
|
|
|
if (s->golden_frame.data[0])
|
|
|
|
avctx->release_buffer(avctx, &s->golden_frame);
|
|
|
|
if (s->last_frame.data[0])
|
|
|
|
avctx->release_buffer(avctx, &s->last_frame);
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2003-08-19 18:18:48 +02:00
|
|
|
s->golden_frame.reference = 3;
|
2003-05-05 04:54:15 +02:00
|
|
|
if(avctx->get_buffer(avctx, &s->golden_frame) < 0) {
|
2003-11-03 14:26:22 +01:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "vp3: get_buffer() failed\n");
|
2003-05-05 04:54:15 +02:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* golden frame is also the current frame */
|
2006-07-16 23:00:38 +02:00
|
|
|
s->current_frame= s->golden_frame;
|
2003-05-05 04:54:15 +02:00
|
|
|
} else {
|
|
|
|
/* allocate a new current frame */
|
2003-08-19 18:18:48 +02:00
|
|
|
s->current_frame.reference = 3;
|
2010-02-12 23:01:38 +01:00
|
|
|
if (!s->golden_frame.data[0]) {
|
2006-07-23 20:22:29 +02:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "vp3: first frame not a keyframe\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
if(avctx->get_buffer(avctx, &s->current_frame) < 0) {
|
2003-11-03 14:26:22 +01:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "vp3: get_buffer() failed\n");
|
2003-05-05 04:54:15 +02:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-08-20 09:35:23 +02:00
|
|
|
s->current_frame.qscale_table= s->qscale_table; //FIXME allocate individual tables per AVFrame
|
|
|
|
s->current_frame.qstride= 0;
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
init_frame(s, &gb);
|
|
|
|
|
2005-05-16 23:49:18 +02:00
|
|
|
if (unpack_superblocks(s, &gb)){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_superblocks\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (unpack_modes(s, &gb)){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_modes\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (unpack_vectors(s, &gb)){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_vectors\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2009-05-29 23:43:22 +02:00
|
|
|
if (unpack_block_qpis(s, &gb)){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_block_qpis\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2005-05-16 23:49:18 +02:00
|
|
|
if (unpack_dct_coeffs(s, &gb)){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "error in unpack_dct_coeffs\n");
|
2003-05-10 23:46:17 +02:00
|
|
|
return -1;
|
|
|
|
}
|
2010-02-12 23:01:38 +01:00
|
|
|
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
if (s->flipped_image)
|
|
|
|
s->data_offset[i] = 0;
|
|
|
|
else
|
|
|
|
s->data_offset[i] = ((s->height>>!!i)-1) * s->current_frame.linesize[i];
|
|
|
|
}
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2010-02-12 23:01:35 +01:00
|
|
|
s->last_slice_end = 0;
|
2005-05-21 06:43:36 +02:00
|
|
|
for (i = 0; i < s->macroblock_height; i++)
|
|
|
|
render_slice(s, i);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2010-02-12 23:01:29 +01:00
|
|
|
// filter the last row
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
int row = (s->height >> (3+!!i)) - 1;
|
|
|
|
apply_loop_filter(s, i, row, row+1);
|
|
|
|
}
|
2010-02-12 23:01:35 +01:00
|
|
|
vp3_draw_horiz_band(s, s->height);
|
2003-05-10 23:46:17 +02:00
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
*data_size=sizeof(AVFrame);
|
|
|
|
*(AVFrame*)data= s->current_frame;
|
|
|
|
|
2003-05-07 04:30:37 +02:00
|
|
|
/* release the last frame, if it is allocated and if it is not the
|
|
|
|
* golden frame */
|
|
|
|
if ((s->last_frame.data[0]) &&
|
|
|
|
(s->last_frame.data[0] != s->golden_frame.data[0]))
|
|
|
|
avctx->release_buffer(avctx, &s->last_frame);
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2003-05-06 05:11:20 +02:00
|
|
|
/* shuffle frames (last = current) */
|
2006-07-16 23:00:38 +02:00
|
|
|
s->last_frame= s->current_frame;
|
2003-08-19 18:18:48 +02:00
|
|
|
s->current_frame.data[0]= NULL; /* ensure that we catch any access to this released frame */
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
return buf_size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is the ffmpeg/libavcodec API module cleanup function.
|
|
|
|
*/
|
2008-03-21 04:11:20 +01:00
|
|
|
static av_cold int vp3_decode_end(AVCodecContext *avctx)
|
2003-05-05 04:54:15 +02:00
|
|
|
{
|
|
|
|
Vp3DecodeContext *s = avctx->priv_data;
|
2008-02-24 19:56:52 +01:00
|
|
|
int i;
|
2003-05-05 04:54:15 +02:00
|
|
|
|
2008-02-24 19:56:52 +01:00
|
|
|
av_free(s->superblock_coding);
|
2003-05-05 04:54:15 +02:00
|
|
|
av_free(s->all_fragments);
|
2008-06-09 18:26:28 +02:00
|
|
|
av_free(s->coeff_counts);
|
2005-05-17 02:52:29 +02:00
|
|
|
av_free(s->coeffs);
|
2003-05-05 04:54:15 +02:00
|
|
|
av_free(s->coded_fragment_list);
|
2009-12-02 03:30:15 +01:00
|
|
|
av_free(s->fast_fragment_list);
|
2003-05-05 04:54:15 +02:00
|
|
|
av_free(s->superblock_fragments);
|
2003-05-11 06:47:45 +02:00
|
|
|
av_free(s->macroblock_coding);
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2008-02-24 19:56:52 +01:00
|
|
|
for (i = 0; i < 16; i++) {
|
|
|
|
free_vlc(&s->dc_vlc[i]);
|
|
|
|
free_vlc(&s->ac_vlc_1[i]);
|
|
|
|
free_vlc(&s->ac_vlc_2[i]);
|
|
|
|
free_vlc(&s->ac_vlc_3[i]);
|
|
|
|
free_vlc(&s->ac_vlc_4[i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
free_vlc(&s->superblock_run_length_vlc);
|
|
|
|
free_vlc(&s->fragment_run_length_vlc);
|
|
|
|
free_vlc(&s->mode_code_vlc);
|
|
|
|
free_vlc(&s->motion_vector_vlc);
|
|
|
|
|
2003-05-05 04:54:15 +02:00
|
|
|
/* release all frames */
|
2003-08-19 18:18:48 +02:00
|
|
|
if (s->golden_frame.data[0] && s->golden_frame.data[0] != s->last_frame.data[0])
|
2003-05-10 23:46:17 +02:00
|
|
|
avctx->release_buffer(avctx, &s->golden_frame);
|
|
|
|
if (s->last_frame.data[0])
|
|
|
|
avctx->release_buffer(avctx, &s->last_frame);
|
|
|
|
/* no need to release the current_frame since it will always be pointing
|
|
|
|
* to the same frame as either the golden or last frame */
|
2003-05-05 04:54:15 +02:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-05-20 01:59:10 +02:00
|
|
|
static int read_huffman_tree(AVCodecContext *avctx, GetBitContext *gb)
|
|
|
|
{
|
|
|
|
Vp3DecodeContext *s = avctx->priv_data;
|
|
|
|
|
2007-08-09 02:13:31 +02:00
|
|
|
if (get_bits1(gb)) {
|
2005-05-20 01:59:10 +02:00
|
|
|
int token;
|
|
|
|
if (s->entries >= 32) { /* overflow */
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "huffman tree overflow\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
token = get_bits(gb, 5);
|
|
|
|
//av_log(avctx, AV_LOG_DEBUG, "hti %d hbits %x token %d entry : %d size %d\n", s->hti, s->hbits, token, s->entries, s->huff_code_size);
|
|
|
|
s->huffman_table[s->hti][token][0] = s->hbits;
|
|
|
|
s->huffman_table[s->hti][token][1] = s->huff_code_size;
|
|
|
|
s->entries++;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
if (s->huff_code_size >= 32) {/* overflow */
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "huffman tree overflow\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
s->huff_code_size++;
|
|
|
|
s->hbits <<= 1;
|
2009-02-09 02:39:33 +01:00
|
|
|
if (read_huffman_tree(avctx, gb))
|
|
|
|
return -1;
|
2005-05-20 01:59:10 +02:00
|
|
|
s->hbits |= 1;
|
2009-02-09 02:39:33 +01:00
|
|
|
if (read_huffman_tree(avctx, gb))
|
|
|
|
return -1;
|
2005-05-20 01:59:10 +02:00
|
|
|
s->hbits >>= 1;
|
|
|
|
s->huff_code_size--;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-01-14 00:44:16 +01:00
|
|
|
#if CONFIG_THEORA_DECODER
|
2006-07-16 22:30:39 +02:00
|
|
|
static int theora_decode_header(AVCodecContext *avctx, GetBitContext *gb)
|
2003-10-11 19:44:21 +02:00
|
|
|
{
|
|
|
|
Vp3DecodeContext *s = avctx->priv_data;
|
2010-02-12 23:01:22 +01:00
|
|
|
int visible_width, visible_height, colorspace;
|
2003-11-23 19:43:09 +01:00
|
|
|
|
2006-07-16 22:30:39 +02:00
|
|
|
s->theora = get_bits_long(gb, 24);
|
2008-02-13 09:05:51 +01:00
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Theora bitstream version %X\n", s->theora);
|
2003-11-23 19:49:53 +01:00
|
|
|
|
2005-05-13 23:06:44 +02:00
|
|
|
/* 3.2.0 aka alpha3 has the same frame orientation as original vp3 */
|
2003-11-23 19:43:09 +01:00
|
|
|
/* but previous versions have the image flipped relative to vp3 */
|
2005-05-13 23:06:44 +02:00
|
|
|
if (s->theora < 0x030200)
|
2003-11-23 19:43:09 +01:00
|
|
|
{
|
2005-12-22 02:10:11 +01:00
|
|
|
s->flipped_image = 1;
|
2003-11-23 19:43:09 +01:00
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Old (<alpha3) Theora bitstream, flipped image\n");
|
|
|
|
}
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2008-10-01 16:43:08 +02:00
|
|
|
visible_width = s->width = get_bits(gb, 16) << 4;
|
|
|
|
visible_height = s->height = get_bits(gb, 16) << 4;
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-01-12 01:16:25 +01:00
|
|
|
if(avcodec_check_dimensions(avctx, s->width, s->height)){
|
2005-11-13 18:59:21 +01:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid dimensions (%dx%d)\n", s->width, s->height);
|
2005-01-12 01:16:25 +01:00
|
|
|
s->width= s->height= 0;
|
|
|
|
return -1;
|
|
|
|
}
|
2005-11-13 18:59:21 +01:00
|
|
|
|
2008-10-01 16:43:08 +02:00
|
|
|
if (s->theora >= 0x030200) {
|
2008-10-01 16:44:30 +02:00
|
|
|
visible_width = get_bits_long(gb, 24);
|
|
|
|
visible_height = get_bits_long(gb, 24);
|
2007-05-07 17:43:01 +02:00
|
|
|
|
2007-05-07 17:44:42 +02:00
|
|
|
skip_bits(gb, 8); /* offset x */
|
|
|
|
skip_bits(gb, 8); /* offset y */
|
|
|
|
}
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2006-07-16 22:30:39 +02:00
|
|
|
skip_bits(gb, 32); /* fps numerator */
|
|
|
|
skip_bits(gb, 32); /* fps denumerator */
|
|
|
|
skip_bits(gb, 24); /* aspect numerator */
|
|
|
|
skip_bits(gb, 24); /* aspect denumerator */
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-05-13 23:06:44 +02:00
|
|
|
if (s->theora < 0x030200)
|
2006-07-16 22:30:39 +02:00
|
|
|
skip_bits(gb, 5); /* keyframe frequency force */
|
2010-02-12 23:01:22 +01:00
|
|
|
colorspace = get_bits(gb, 8);
|
2006-07-16 22:30:39 +02:00
|
|
|
skip_bits(gb, 24); /* bitrate */
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2006-07-16 22:30:39 +02:00
|
|
|
skip_bits(gb, 6); /* quality hint */
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-05-13 23:06:44 +02:00
|
|
|
if (s->theora >= 0x030200)
|
2003-11-23 19:49:53 +01:00
|
|
|
{
|
2006-07-16 22:30:39 +02:00
|
|
|
skip_bits(gb, 5); /* keyframe frequency force */
|
2010-02-12 23:01:18 +01:00
|
|
|
skip_bits(gb, 2); /* pixel format: 420,res,422,444 */
|
|
|
|
skip_bits(gb, 3); /* reserved */
|
2003-11-23 19:49:53 +01:00
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2006-07-16 22:30:39 +02:00
|
|
|
// align_get_bits(gb);
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2007-05-07 17:43:01 +02:00
|
|
|
if ( visible_width <= s->width && visible_width > s->width-16
|
|
|
|
&& visible_height <= s->height && visible_height > s->height-16)
|
|
|
|
avcodec_set_dimensions(avctx, visible_width, visible_height);
|
|
|
|
else
|
|
|
|
avcodec_set_dimensions(avctx, s->width, s->height);
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2010-02-12 23:01:22 +01:00
|
|
|
if (colorspace == 1) {
|
|
|
|
avctx->color_primaries = AVCOL_PRI_BT470M;
|
|
|
|
} else if (colorspace == 2) {
|
|
|
|
avctx->color_primaries = AVCOL_PRI_BT470BG;
|
|
|
|
}
|
|
|
|
if (colorspace == 1 || colorspace == 2) {
|
|
|
|
avctx->colorspace = AVCOL_SPC_BT470BG;
|
|
|
|
avctx->color_trc = AVCOL_TRC_BT709;
|
|
|
|
}
|
|
|
|
|
2003-10-11 19:44:21 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2006-07-16 22:30:39 +02:00
|
|
|
static int theora_decode_tables(AVCodecContext *avctx, GetBitContext *gb)
|
2003-10-11 19:44:21 +02:00
|
|
|
{
|
|
|
|
Vp3DecodeContext *s = avctx->priv_data;
|
2006-07-17 11:51:59 +02:00
|
|
|
int i, n, matrices, inter, plane;
|
2005-05-13 23:06:44 +02:00
|
|
|
|
|
|
|
if (s->theora >= 0x030200) {
|
2006-07-16 22:30:39 +02:00
|
|
|
n = get_bits(gb, 3);
|
2005-05-24 16:21:42 +02:00
|
|
|
/* loop filter limit values table */
|
2009-07-05 20:27:39 +02:00
|
|
|
for (i = 0; i < 64; i++) {
|
2006-07-16 22:30:39 +02:00
|
|
|
s->filter_limit_values[i] = get_bits(gb, n);
|
2009-07-05 20:27:39 +02:00
|
|
|
if (s->filter_limit_values[i] > 127) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "filter limit value too large (%i > 127), clamping\n", s->filter_limit_values[i]);
|
|
|
|
s->filter_limit_values[i] = 127;
|
|
|
|
}
|
|
|
|
}
|
2005-05-13 23:06:44 +02:00
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-05-13 23:06:44 +02:00
|
|
|
if (s->theora >= 0x030200)
|
2006-07-16 22:30:39 +02:00
|
|
|
n = get_bits(gb, 4) + 1;
|
2005-05-13 23:06:44 +02:00
|
|
|
else
|
|
|
|
n = 16;
|
2003-10-11 19:44:21 +02:00
|
|
|
/* quality threshold table */
|
|
|
|
for (i = 0; i < 64; i++)
|
2006-07-16 22:30:39 +02:00
|
|
|
s->coded_ac_scale_factor[i] = get_bits(gb, n);
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2005-05-13 23:06:44 +02:00
|
|
|
if (s->theora >= 0x030200)
|
2006-07-16 22:30:39 +02:00
|
|
|
n = get_bits(gb, 4) + 1;
|
2005-05-13 23:06:44 +02:00
|
|
|
else
|
|
|
|
n = 16;
|
2003-10-11 19:44:21 +02:00
|
|
|
/* dc scale factor table */
|
|
|
|
for (i = 0; i < 64; i++)
|
2006-07-16 22:30:39 +02:00
|
|
|
s->coded_dc_scale_factor[i] = get_bits(gb, n);
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2005-05-13 23:06:44 +02:00
|
|
|
if (s->theora >= 0x030200)
|
2006-07-16 22:30:39 +02:00
|
|
|
matrices = get_bits(gb, 9) + 1;
|
2005-05-13 23:06:44 +02:00
|
|
|
else
|
2005-11-13 21:06:31 +01:00
|
|
|
matrices = 3;
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2006-07-17 11:51:59 +02:00
|
|
|
if(matrices > 384){
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid number of base matrixes\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2003-12-08 12:32:06 +01:00
|
|
|
|
2006-07-17 11:51:59 +02:00
|
|
|
for(n=0; n<matrices; n++){
|
2005-12-22 02:10:11 +01:00
|
|
|
for (i = 0; i < 64; i++)
|
2006-07-17 11:51:59 +02:00
|
|
|
s->base_matrix[n][i]= get_bits(gb, 8);
|
|
|
|
}
|
2005-11-13 21:06:31 +01:00
|
|
|
|
2006-07-17 11:51:59 +02:00
|
|
|
for (inter = 0; inter <= 1; inter++) {
|
|
|
|
for (plane = 0; plane <= 2; plane++) {
|
|
|
|
int newqr= 1;
|
|
|
|
if (inter || plane > 0)
|
2007-08-09 02:13:31 +02:00
|
|
|
newqr = get_bits1(gb);
|
2005-05-20 01:59:10 +02:00
|
|
|
if (!newqr) {
|
2006-07-17 11:51:59 +02:00
|
|
|
int qtj, plj;
|
2007-08-09 02:13:31 +02:00
|
|
|
if(inter && get_bits1(gb)){
|
2006-07-17 11:51:59 +02:00
|
|
|
qtj = 0;
|
|
|
|
plj = plane;
|
|
|
|
}else{
|
|
|
|
qtj= (3*inter + plane - 1) / 3;
|
|
|
|
plj= (plane + 2) % 3;
|
|
|
|
}
|
|
|
|
s->qr_count[inter][plane]= s->qr_count[qtj][plj];
|
|
|
|
memcpy(s->qr_size[inter][plane], s->qr_size[qtj][plj], sizeof(s->qr_size[0][0]));
|
|
|
|
memcpy(s->qr_base[inter][plane], s->qr_base[qtj][plj], sizeof(s->qr_base[0][0]));
|
|
|
|
} else {
|
|
|
|
int qri= 0;
|
2005-05-20 01:59:10 +02:00
|
|
|
int qi = 0;
|
2006-07-17 11:51:59 +02:00
|
|
|
|
|
|
|
for(;;){
|
|
|
|
i= get_bits(gb, av_log2(matrices-1)+1);
|
|
|
|
if(i>= matrices){
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid base matrix index\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
s->qr_base[inter][plane][qri]= i;
|
|
|
|
if(qi >= 63)
|
|
|
|
break;
|
|
|
|
i = get_bits(gb, av_log2(63-qi)+1) + 1;
|
|
|
|
s->qr_size[inter][plane][qri++]= i;
|
|
|
|
qi += i;
|
2005-05-20 01:59:10 +02:00
|
|
|
}
|
2006-07-17 11:51:59 +02:00
|
|
|
|
2005-11-13 21:06:31 +01:00
|
|
|
if (qi > 63) {
|
2005-11-13 18:59:21 +01:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "invalid qi %d > 63\n", qi);
|
2005-12-22 02:10:11 +01:00
|
|
|
return -1;
|
|
|
|
}
|
2006-07-17 11:51:59 +02:00
|
|
|
s->qr_count[inter][plane]= qri;
|
2005-05-20 01:59:10 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-11-13 21:06:31 +01:00
|
|
|
/* Huffman tables */
|
2005-05-20 01:59:10 +02:00
|
|
|
for (s->hti = 0; s->hti < 80; s->hti++) {
|
|
|
|
s->entries = 0;
|
|
|
|
s->huff_code_size = 1;
|
2007-08-09 02:13:31 +02:00
|
|
|
if (!get_bits1(gb)) {
|
2005-05-20 01:59:10 +02:00
|
|
|
s->hbits = 0;
|
2009-02-09 02:39:33 +01:00
|
|
|
if(read_huffman_tree(avctx, gb))
|
|
|
|
return -1;
|
2005-05-20 01:59:10 +02:00
|
|
|
s->hbits = 1;
|
2009-02-09 02:39:33 +01:00
|
|
|
if(read_huffman_tree(avctx, gb))
|
|
|
|
return -1;
|
2005-05-20 01:59:10 +02:00
|
|
|
}
|
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2003-10-11 19:44:21 +02:00
|
|
|
s->theora_tables = 1;
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2003-10-11 19:44:21 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-02-22 14:48:55 +01:00
|
|
|
static av_cold int theora_decode_init(AVCodecContext *avctx)
|
2003-10-11 19:44:21 +02:00
|
|
|
{
|
|
|
|
Vp3DecodeContext *s = avctx->priv_data;
|
|
|
|
GetBitContext gb;
|
|
|
|
int ptype;
|
2007-03-25 03:09:26 +02:00
|
|
|
uint8_t *header_start[3];
|
|
|
|
int header_len[3];
|
|
|
|
int i;
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2003-10-11 19:44:21 +02:00
|
|
|
s->theora = 1;
|
|
|
|
|
|
|
|
if (!avctx->extradata_size)
|
2005-11-13 18:59:21 +01:00
|
|
|
{
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Missing extradata!\n");
|
2005-12-22 02:10:11 +01:00
|
|
|
return -1;
|
2005-11-13 18:59:21 +01:00
|
|
|
}
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2007-03-25 03:09:26 +02:00
|
|
|
if (ff_split_xiph_headers(avctx->extradata, avctx->extradata_size,
|
|
|
|
42, header_start, header_len) < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Corrupt extradata\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2005-03-03 03:24:20 +01:00
|
|
|
|
2007-03-25 03:09:26 +02:00
|
|
|
for(i=0;i<3;i++) {
|
2009-09-23 14:27:10 +02:00
|
|
|
init_get_bits(&gb, header_start[i], header_len[i] * 8);
|
2003-10-11 19:44:21 +02:00
|
|
|
|
|
|
|
ptype = get_bits(&gb, 8);
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2005-11-13 18:59:21 +01:00
|
|
|
if (!(ptype & 0x80))
|
|
|
|
{
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid extradata!\n");
|
2006-07-16 22:30:39 +02:00
|
|
|
// return -1;
|
2005-12-17 19:14:38 +01:00
|
|
|
}
|
2005-11-13 18:59:21 +01:00
|
|
|
|
2007-02-22 01:14:54 +01:00
|
|
|
// FIXME: Check for this as well.
|
2009-05-14 02:02:07 +02:00
|
|
|
skip_bits_long(&gb, 6*8); /* "theora" */
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2003-10-11 19:44:21 +02:00
|
|
|
switch(ptype)
|
|
|
|
{
|
|
|
|
case 0x80:
|
2006-07-16 22:30:39 +02:00
|
|
|
theora_decode_header(avctx, &gb);
|
2005-12-22 02:10:11 +01:00
|
|
|
break;
|
|
|
|
case 0x81:
|
2005-11-13 21:06:31 +01:00
|
|
|
// FIXME: is this needed? it breaks sometimes
|
2005-12-22 02:10:11 +01:00
|
|
|
// theora_decode_comments(avctx, gb);
|
|
|
|
break;
|
|
|
|
case 0x82:
|
2009-02-09 02:39:33 +01:00
|
|
|
if (theora_decode_tables(avctx, &gb))
|
|
|
|
return -1;
|
2005-12-22 02:10:11 +01:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Unknown Theora config packet: %d\n", ptype&~0x80);
|
|
|
|
break;
|
2003-10-11 19:44:21 +02:00
|
|
|
}
|
2008-09-30 06:18:22 +02:00
|
|
|
if(ptype != 0x81 && 8*header_len[i] != get_bits_count(&gb))
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "%d bits left in packet %X\n", 8*header_len[i] - get_bits_count(&gb), ptype);
|
2006-07-17 12:44:53 +02:00
|
|
|
if (s->theora < 0x030200)
|
|
|
|
break;
|
2005-03-03 03:24:20 +01:00
|
|
|
}
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2009-07-06 12:28:58 +02:00
|
|
|
return vp3_decode_init(avctx);
|
2003-10-11 19:44:21 +02:00
|
|
|
}
|
|
|
|
|
2007-04-08 20:52:03 +02:00
|
|
|
AVCodec theora_decoder = {
|
|
|
|
"theora",
|
2003-05-05 04:54:15 +02:00
|
|
|
CODEC_TYPE_VIDEO,
|
2007-04-08 20:52:03 +02:00
|
|
|
CODEC_ID_THEORA,
|
2003-05-05 04:54:15 +02:00
|
|
|
sizeof(Vp3DecodeContext),
|
2007-04-08 20:52:03 +02:00
|
|
|
theora_decode_init,
|
2003-05-05 04:54:15 +02:00
|
|
|
NULL,
|
|
|
|
vp3_decode_end,
|
|
|
|
vp3_decode_frame,
|
2010-02-12 23:01:35 +01:00
|
|
|
CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND,
|
2008-04-27 12:52:44 +02:00
|
|
|
NULL,
|
2008-06-12 23:50:13 +02:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("Theora"),
|
2003-05-05 04:54:15 +02:00
|
|
|
};
|
2007-04-08 20:52:03 +02:00
|
|
|
#endif
|
2003-10-11 19:44:21 +02:00
|
|
|
|
2007-04-08 20:52:03 +02:00
|
|
|
AVCodec vp3_decoder = {
|
|
|
|
"vp3",
|
2003-10-11 19:44:21 +02:00
|
|
|
CODEC_TYPE_VIDEO,
|
2007-04-08 20:52:03 +02:00
|
|
|
CODEC_ID_VP3,
|
2003-10-11 19:44:21 +02:00
|
|
|
sizeof(Vp3DecodeContext),
|
2007-04-08 20:52:03 +02:00
|
|
|
vp3_decode_init,
|
2003-10-11 19:44:21 +02:00
|
|
|
NULL,
|
|
|
|
vp3_decode_end,
|
|
|
|
vp3_decode_frame,
|
2010-02-12 23:01:35 +01:00
|
|
|
CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND,
|
2008-04-27 12:52:44 +02:00
|
|
|
NULL,
|
2008-06-12 23:50:13 +02:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
|
2003-10-11 19:44:21 +02:00
|
|
|
};
|