1374 lines
50 KiB
C
1374 lines
50 KiB
C
/*
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* FFV1 encoder
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*
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* Copyright (c) 2003-2013 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* FF Video Codec 1 (a lossless codec) encoder
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*/
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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "libavutil/crc.h"
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#include "libavutil/opt.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/timer.h"
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#include "avcodec.h"
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#include "internal.h"
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#include "put_bits.h"
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#include "rangecoder.h"
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#include "golomb.h"
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#include "mathops.h"
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#include "ffv1.h"
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static const int8_t quant5_10bit[256] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -0, -0, -0, -0, -0, -0, -0, -0, -0, -0,
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};
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static const int8_t quant5[256] = {
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0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -1,
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};
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static const int8_t quant9_10bit[256] = {
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0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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-4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
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-4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
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-4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
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-4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
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-4, -4, -4, -4, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3,
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-3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3,
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-3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
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-2, -2, -2, -2, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0,
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};
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static const int8_t quant11[256] = {
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0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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-5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
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-5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
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-5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
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-5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
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-5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5,
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-5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -5, -4, -4,
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-4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4,
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-4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -1,
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};
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static const uint8_t ver2_state[256] = {
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0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49,
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59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39,
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40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52,
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53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69,
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87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97,
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85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98,
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105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125,
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115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129,
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165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148,
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147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160,
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172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178,
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175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196,
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197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214,
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209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225,
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226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242,
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241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255,
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};
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static void find_best_state(uint8_t best_state[256][256],
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const uint8_t one_state[256])
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{
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int i, j, k, m;
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double l2tab[256];
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for (i = 1; i < 256; i++)
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l2tab[i] = log2(i / 256.0);
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for (i = 0; i < 256; i++) {
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double best_len[256];
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double p = i / 256.0;
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for (j = 0; j < 256; j++)
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best_len[j] = 1 << 30;
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for (j = FFMAX(i - 10, 1); j < FFMIN(i + 11, 256); j++) {
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double occ[256] = { 0 };
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double len = 0;
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occ[j] = 1.0;
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for (k = 0; k < 256; k++) {
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double newocc[256] = { 0 };
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for (m = 1; m < 256; m++)
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if (occ[m]) {
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len -=occ[m]*( p *l2tab[ m]
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+ (1-p)*l2tab[256-m]);
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}
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if (len < best_len[k]) {
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best_len[k] = len;
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best_state[i][k] = j;
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}
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for (m = 1; m < 256; m++)
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if (occ[m]) {
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newocc[ one_state[ m]] += occ[m] * p;
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newocc[256 - one_state[256 - m]] += occ[m] * (1 - p);
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}
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memcpy(occ, newocc, sizeof(occ));
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}
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}
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}
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}
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static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c,
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uint8_t *state, int v,
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int is_signed,
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uint64_t rc_stat[256][2],
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uint64_t rc_stat2[32][2])
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{
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int i;
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#define put_rac(C, S, B) \
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do { \
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if (rc_stat) { \
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rc_stat[*(S)][B]++; \
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rc_stat2[(S) - state][B]++; \
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} \
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put_rac(C, S, B); \
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} while (0)
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if (v) {
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const int a = FFABS(v);
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const int e = av_log2(a);
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put_rac(c, state + 0, 0);
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if (e <= 9) {
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for (i = 0; i < e; i++)
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put_rac(c, state + 1 + i, 1); // 1..10
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put_rac(c, state + 1 + i, 0);
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for (i = e - 1; i >= 0; i--)
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put_rac(c, state + 22 + i, (a >> i) & 1); // 22..31
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if (is_signed)
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put_rac(c, state + 11 + e, v < 0); // 11..21
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} else {
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for (i = 0; i < e; i++)
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put_rac(c, state + 1 + FFMIN(i, 9), 1); // 1..10
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put_rac(c, state + 1 + 9, 0);
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for (i = e - 1; i >= 0; i--)
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put_rac(c, state + 22 + FFMIN(i, 9), (a >> i) & 1); // 22..31
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if (is_signed)
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put_rac(c, state + 11 + 10, v < 0); // 11..21
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}
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} else {
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put_rac(c, state + 0, 1);
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}
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#undef put_rac
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}
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static av_noinline void put_symbol(RangeCoder *c, uint8_t *state,
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int v, int is_signed)
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{
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put_symbol_inline(c, state, v, is_signed, NULL, NULL);
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}
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static inline void put_vlc_symbol(PutBitContext *pb, VlcState *const state,
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int v, int bits)
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{
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int i, k, code;
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v = fold(v - state->bias, bits);
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i = state->count;
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k = 0;
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while (i < state->error_sum) { // FIXME: optimize
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k++;
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i += i;
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}
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av_assert2(k <= 13);
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#if 0 // JPEG LS
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if (k == 0 && 2 * state->drift <= -state->count)
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code = v ^ (-1);
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else
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code = v;
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#else
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code = v ^ ((2 * state->drift + state->count) >> 31);
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#endif
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av_dlog(NULL, "v:%d/%d bias:%d error:%d drift:%d count:%d k:%d\n", v, code,
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state->bias, state->error_sum, state->drift, state->count, k);
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set_sr_golomb(pb, code, k, 12, bits);
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update_vlc_state(state, v);
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}
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static av_always_inline int encode_line(FFV1Context *s, int w,
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int16_t *sample[3],
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int plane_index, int bits)
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{
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PlaneContext *const p = &s->plane[plane_index];
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RangeCoder *const c = &s->c;
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int x;
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int run_index = s->run_index;
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int run_count = 0;
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int run_mode = 0;
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if (s->ac) {
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if (c->bytestream_end - c->bytestream < w * 35) {
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av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
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return AVERROR_INVALIDDATA;
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}
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} else {
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if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < w * 4) {
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av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
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return AVERROR_INVALIDDATA;
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}
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}
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if (s->slice_coding_mode == 1) {
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for (x = 0; x < w; x++) {
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int i;
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int v = sample[0][x];
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for (i = bits-1; i>=0; i--) {
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uint8_t state = 128;
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put_rac(c, &state, (v>>i) & 1);
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}
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}
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return 0;
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}
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for (x = 0; x < w; x++) {
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int diff, context;
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context = get_context(p, sample[0] + x, sample[1] + x, sample[2] + x);
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diff = sample[0][x] - predict(sample[0] + x, sample[1] + x);
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if (context < 0) {
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context = -context;
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diff = -diff;
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}
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diff = fold(diff, bits);
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if (s->ac) {
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if (s->flags & CODEC_FLAG_PASS1) {
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put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat,
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s->rc_stat2[p->quant_table_index][context]);
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} else {
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put_symbol_inline(c, p->state[context], diff, 1, NULL, NULL);
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}
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} else {
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if (context == 0)
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run_mode = 1;
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if (run_mode) {
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if (diff) {
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while (run_count >= 1 << ff_log2_run[run_index]) {
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run_count -= 1 << ff_log2_run[run_index];
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run_index++;
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put_bits(&s->pb, 1, 1);
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}
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put_bits(&s->pb, 1 + ff_log2_run[run_index], run_count);
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if (run_index)
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run_index--;
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run_count = 0;
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run_mode = 0;
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if (diff > 0)
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diff--;
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} else {
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run_count++;
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}
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}
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av_dlog(s->avctx, "count:%d index:%d, mode:%d, x:%d pos:%d\n",
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run_count, run_index, run_mode, x,
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(int)put_bits_count(&s->pb));
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if (run_mode == 0)
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put_vlc_symbol(&s->pb, &p->vlc_state[context], diff, bits);
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}
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}
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if (run_mode) {
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while (run_count >= 1 << ff_log2_run[run_index]) {
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run_count -= 1 << ff_log2_run[run_index];
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run_index++;
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put_bits(&s->pb, 1, 1);
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|
}
|
|
|
|
if (run_count)
|
|
put_bits(&s->pb, 1, 1);
|
|
}
|
|
s->run_index = run_index;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int encode_plane(FFV1Context *s, uint8_t *src, int w, int h,
|
|
int stride, int plane_index)
|
|
{
|
|
int x, y, i, ret;
|
|
const int ring_size = s->avctx->context_model ? 3 : 2;
|
|
int16_t *sample[3];
|
|
s->run_index = 0;
|
|
|
|
memset(s->sample_buffer, 0, ring_size * (w + 6) * sizeof(*s->sample_buffer));
|
|
|
|
for (y = 0; y < h; y++) {
|
|
for (i = 0; i < ring_size; i++)
|
|
sample[i] = s->sample_buffer + (w + 6) * ((h + i - y) % ring_size) + 3;
|
|
|
|
sample[0][-1]= sample[1][0 ];
|
|
sample[1][ w]= sample[1][w-1];
|
|
// { START_TIMER
|
|
if (s->bits_per_raw_sample <= 8) {
|
|
for (x = 0; x < w; x++)
|
|
sample[0][x] = src[x + stride * y];
|
|
if((ret = encode_line(s, w, sample, plane_index, 8)) < 0)
|
|
return ret;
|
|
} else {
|
|
if (s->packed_at_lsb) {
|
|
for (x = 0; x < w; x++) {
|
|
sample[0][x] = ((uint16_t*)(src + stride*y))[x];
|
|
}
|
|
} else {
|
|
for (x = 0; x < w; x++) {
|
|
sample[0][x] = ((uint16_t*)(src + stride*y))[x] >> (16 - s->bits_per_raw_sample);
|
|
}
|
|
}
|
|
if((ret = encode_line(s, w, sample, plane_index, s->bits_per_raw_sample)) < 0)
|
|
return ret;
|
|
}
|
|
// STOP_TIMER("encode line") }
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int encode_rgb_frame(FFV1Context *s, const uint8_t *src[3],
|
|
int w, int h, const int stride[3])
|
|
{
|
|
int x, y, p, i;
|
|
const int ring_size = s->avctx->context_model ? 3 : 2;
|
|
int16_t *sample[4][3];
|
|
int lbd = s->bits_per_raw_sample <= 8;
|
|
int bits = s->bits_per_raw_sample > 0 ? s->bits_per_raw_sample : 8;
|
|
int offset = 1 << bits;
|
|
|
|
s->run_index = 0;
|
|
|
|
memset(s->sample_buffer, 0, ring_size * MAX_PLANES *
|
|
(w + 6) * sizeof(*s->sample_buffer));
|
|
|
|
for (y = 0; y < h; y++) {
|
|
for (i = 0; i < ring_size; i++)
|
|
for (p = 0; p < MAX_PLANES; p++)
|
|
sample[p][i]= s->sample_buffer + p*ring_size*(w+6) + ((h+i-y)%ring_size)*(w+6) + 3;
|
|
|
|
for (x = 0; x < w; x++) {
|
|
int b, g, r, av_uninit(a);
|
|
if (lbd) {
|
|
unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
|
|
b = v & 0xFF;
|
|
g = (v >> 8) & 0xFF;
|
|
r = (v >> 16) & 0xFF;
|
|
a = v >> 24;
|
|
} else {
|
|
b = *((const uint16_t *)(src[0] + x*2 + stride[0]*y));
|
|
g = *((const uint16_t *)(src[1] + x*2 + stride[1]*y));
|
|
r = *((const uint16_t *)(src[2] + x*2 + stride[2]*y));
|
|
}
|
|
|
|
if (s->slice_coding_mode != 1) {
|
|
b -= g;
|
|
r -= g;
|
|
g += (b * s->slice_rct_by_coef + r * s->slice_rct_ry_coef) >> 2;
|
|
b += offset;
|
|
r += offset;
|
|
}
|
|
|
|
sample[0][0][x] = g;
|
|
sample[1][0][x] = b;
|
|
sample[2][0][x] = r;
|
|
sample[3][0][x] = a;
|
|
}
|
|
for (p = 0; p < 3 + s->transparency; p++) {
|
|
int ret;
|
|
sample[p][0][-1] = sample[p][1][0 ];
|
|
sample[p][1][ w] = sample[p][1][w-1];
|
|
if (lbd && s->slice_coding_mode == 0)
|
|
ret = encode_line(s, w, sample[p], (p + 1) / 2, 9);
|
|
else
|
|
ret = encode_line(s, w, sample[p], (p + 1) / 2, bits + (s->slice_coding_mode != 1));
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void write_quant_table(RangeCoder *c, int16_t *quant_table)
|
|
{
|
|
int last = 0;
|
|
int i;
|
|
uint8_t state[CONTEXT_SIZE];
|
|
memset(state, 128, sizeof(state));
|
|
|
|
for (i = 1; i < 128; i++)
|
|
if (quant_table[i] != quant_table[i - 1]) {
|
|
put_symbol(c, state, i - last - 1, 0);
|
|
last = i;
|
|
}
|
|
put_symbol(c, state, i - last - 1, 0);
|
|
}
|
|
|
|
static void write_quant_tables(RangeCoder *c,
|
|
int16_t quant_table[MAX_CONTEXT_INPUTS][256])
|
|
{
|
|
int i;
|
|
for (i = 0; i < 5; i++)
|
|
write_quant_table(c, quant_table[i]);
|
|
}
|
|
|
|
static void write_header(FFV1Context *f)
|
|
{
|
|
uint8_t state[CONTEXT_SIZE];
|
|
int i, j;
|
|
RangeCoder *const c = &f->slice_context[0]->c;
|
|
|
|
memset(state, 128, sizeof(state));
|
|
|
|
if (f->version < 2) {
|
|
put_symbol(c, state, f->version, 0);
|
|
put_symbol(c, state, f->ac, 0);
|
|
if (f->ac > 1) {
|
|
for (i = 1; i < 256; i++)
|
|
put_symbol(c, state,
|
|
f->state_transition[i] - c->one_state[i], 1);
|
|
}
|
|
put_symbol(c, state, f->colorspace, 0); //YUV cs type
|
|
if (f->version > 0)
|
|
put_symbol(c, state, f->bits_per_raw_sample, 0);
|
|
put_rac(c, state, f->chroma_planes);
|
|
put_symbol(c, state, f->chroma_h_shift, 0);
|
|
put_symbol(c, state, f->chroma_v_shift, 0);
|
|
put_rac(c, state, f->transparency);
|
|
|
|
write_quant_tables(c, f->quant_table);
|
|
} else if (f->version < 3) {
|
|
put_symbol(c, state, f->slice_count, 0);
|
|
for (i = 0; i < f->slice_count; i++) {
|
|
FFV1Context *fs = f->slice_context[i];
|
|
put_symbol(c, state,
|
|
(fs->slice_x + 1) * f->num_h_slices / f->width, 0);
|
|
put_symbol(c, state,
|
|
(fs->slice_y + 1) * f->num_v_slices / f->height, 0);
|
|
put_symbol(c, state,
|
|
(fs->slice_width + 1) * f->num_h_slices / f->width - 1,
|
|
0);
|
|
put_symbol(c, state,
|
|
(fs->slice_height + 1) * f->num_v_slices / f->height - 1,
|
|
0);
|
|
for (j = 0; j < f->plane_count; j++) {
|
|
put_symbol(c, state, f->plane[j].quant_table_index, 0);
|
|
av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int write_extradata(FFV1Context *f)
|
|
{
|
|
RangeCoder *const c = &f->c;
|
|
uint8_t state[CONTEXT_SIZE];
|
|
int i, j, k;
|
|
uint8_t state2[32][CONTEXT_SIZE];
|
|
unsigned v;
|
|
|
|
memset(state2, 128, sizeof(state2));
|
|
memset(state, 128, sizeof(state));
|
|
|
|
f->avctx->extradata_size = 10000 + 4 +
|
|
(11 * 11 * 5 * 5 * 5 + 11 * 11 * 11) * 32;
|
|
f->avctx->extradata = av_malloc(f->avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!f->avctx->extradata)
|
|
return AVERROR(ENOMEM);
|
|
ff_init_range_encoder(c, f->avctx->extradata, f->avctx->extradata_size);
|
|
ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
|
|
|
|
put_symbol(c, state, f->version, 0);
|
|
if (f->version > 2) {
|
|
if (f->version == 3) {
|
|
f->micro_version = 4;
|
|
} else if (f->version == 4)
|
|
f->micro_version = 2;
|
|
put_symbol(c, state, f->micro_version, 0);
|
|
}
|
|
|
|
put_symbol(c, state, f->ac, 0);
|
|
if (f->ac > 1)
|
|
for (i = 1; i < 256; i++)
|
|
put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1);
|
|
|
|
put_symbol(c, state, f->colorspace, 0); // YUV cs type
|
|
put_symbol(c, state, f->bits_per_raw_sample, 0);
|
|
put_rac(c, state, f->chroma_planes);
|
|
put_symbol(c, state, f->chroma_h_shift, 0);
|
|
put_symbol(c, state, f->chroma_v_shift, 0);
|
|
put_rac(c, state, f->transparency);
|
|
put_symbol(c, state, f->num_h_slices - 1, 0);
|
|
put_symbol(c, state, f->num_v_slices - 1, 0);
|
|
|
|
put_symbol(c, state, f->quant_table_count, 0);
|
|
for (i = 0; i < f->quant_table_count; i++)
|
|
write_quant_tables(c, f->quant_tables[i]);
|
|
|
|
for (i = 0; i < f->quant_table_count; i++) {
|
|
for (j = 0; j < f->context_count[i] * CONTEXT_SIZE; j++)
|
|
if (f->initial_states[i] && f->initial_states[i][0][j] != 128)
|
|
break;
|
|
if (j < f->context_count[i] * CONTEXT_SIZE) {
|
|
put_rac(c, state, 1);
|
|
for (j = 0; j < f->context_count[i]; j++)
|
|
for (k = 0; k < CONTEXT_SIZE; k++) {
|
|
int pred = j ? f->initial_states[i][j - 1][k] : 128;
|
|
put_symbol(c, state2[k],
|
|
(int8_t)(f->initial_states[i][j][k] - pred), 1);
|
|
}
|
|
} else {
|
|
put_rac(c, state, 0);
|
|
}
|
|
}
|
|
|
|
if (f->version > 2) {
|
|
put_symbol(c, state, f->ec, 0);
|
|
put_symbol(c, state, f->intra = (f->avctx->gop_size < 2), 0);
|
|
}
|
|
|
|
f->avctx->extradata_size = ff_rac_terminate(c);
|
|
v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, f->avctx->extradata, f->avctx->extradata_size);
|
|
AV_WL32(f->avctx->extradata + f->avctx->extradata_size, v);
|
|
f->avctx->extradata_size += 4;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sort_stt(FFV1Context *s, uint8_t stt[256])
|
|
{
|
|
int i, i2, changed, print = 0;
|
|
|
|
do {
|
|
changed = 0;
|
|
for (i = 12; i < 244; i++) {
|
|
for (i2 = i + 1; i2 < 245 && i2 < i + 4; i2++) {
|
|
|
|
#define COST(old, new) \
|
|
s->rc_stat[old][0] * -log2((256 - (new)) / 256.0) + \
|
|
s->rc_stat[old][1] * -log2((new) / 256.0)
|
|
|
|
#define COST2(old, new) \
|
|
COST(old, new) + COST(256 - (old), 256 - (new))
|
|
|
|
double size0 = COST2(i, i) + COST2(i2, i2);
|
|
double sizeX = COST2(i, i2) + COST2(i2, i);
|
|
if (size0 - sizeX > size0*(1e-14) && i != 128 && i2 != 128) {
|
|
int j;
|
|
FFSWAP(int, stt[i], stt[i2]);
|
|
FFSWAP(int, s->rc_stat[i][0], s->rc_stat[i2][0]);
|
|
FFSWAP(int, s->rc_stat[i][1], s->rc_stat[i2][1]);
|
|
if (i != 256 - i2) {
|
|
FFSWAP(int, stt[256 - i], stt[256 - i2]);
|
|
FFSWAP(int, s->rc_stat[256 - i][0], s->rc_stat[256 - i2][0]);
|
|
FFSWAP(int, s->rc_stat[256 - i][1], s->rc_stat[256 - i2][1]);
|
|
}
|
|
for (j = 1; j < 256; j++) {
|
|
if (stt[j] == i)
|
|
stt[j] = i2;
|
|
else if (stt[j] == i2)
|
|
stt[j] = i;
|
|
if (i != 256 - i2) {
|
|
if (stt[256 - j] == 256 - i)
|
|
stt[256 - j] = 256 - i2;
|
|
else if (stt[256 - j] == 256 - i2)
|
|
stt[256 - j] = 256 - i;
|
|
}
|
|
}
|
|
print = changed = 1;
|
|
}
|
|
}
|
|
}
|
|
} while (changed);
|
|
return print;
|
|
}
|
|
|
|
static av_cold int encode_init(AVCodecContext *avctx)
|
|
{
|
|
FFV1Context *s = avctx->priv_data;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
|
|
int i, j, k, m, ret;
|
|
|
|
if ((ret = ffv1_common_init(avctx)) < 0)
|
|
return ret;
|
|
|
|
s->version = 0;
|
|
|
|
if ((avctx->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) || avctx->slices>1)
|
|
s->version = FFMAX(s->version, 2);
|
|
|
|
// Unspecified level & slices, we choose version 1.2+ to ensure multithreaded decodability
|
|
if (avctx->slices == 0 && avctx->level < 0 && avctx->width * avctx->height > 720*576)
|
|
s->version = FFMAX(s->version, 2);
|
|
|
|
if (avctx->level <= 0 && s->version == 2) {
|
|
s->version = 3;
|
|
}
|
|
if (avctx->level >= 0 && avctx->level <= 4)
|
|
s->version = FFMAX(s->version, avctx->level);
|
|
|
|
if (s->ec < 0) {
|
|
s->ec = (s->version >= 3);
|
|
}
|
|
|
|
if ((s->version == 2 || s->version>3) && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
|
|
av_log(avctx, AV_LOG_ERROR, "Version 2 needed for requested features but version 2 is experimental and not enabled\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
s->ac = avctx->coder_type > 0 ? 2 : 0;
|
|
|
|
s->plane_count = 3;
|
|
switch(avctx->pix_fmt) {
|
|
case AV_PIX_FMT_YUV444P9:
|
|
case AV_PIX_FMT_YUV422P9:
|
|
case AV_PIX_FMT_YUV420P9:
|
|
case AV_PIX_FMT_YUVA444P9:
|
|
case AV_PIX_FMT_YUVA422P9:
|
|
case AV_PIX_FMT_YUVA420P9:
|
|
if (!avctx->bits_per_raw_sample)
|
|
s->bits_per_raw_sample = 9;
|
|
case AV_PIX_FMT_YUV444P10:
|
|
case AV_PIX_FMT_YUV420P10:
|
|
case AV_PIX_FMT_YUV422P10:
|
|
case AV_PIX_FMT_YUVA444P10:
|
|
case AV_PIX_FMT_YUVA422P10:
|
|
case AV_PIX_FMT_YUVA420P10:
|
|
s->packed_at_lsb = 1;
|
|
if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
|
|
s->bits_per_raw_sample = 10;
|
|
case AV_PIX_FMT_GRAY16:
|
|
case AV_PIX_FMT_YUV444P16:
|
|
case AV_PIX_FMT_YUV422P16:
|
|
case AV_PIX_FMT_YUV420P16:
|
|
case AV_PIX_FMT_YUVA444P16:
|
|
case AV_PIX_FMT_YUVA422P16:
|
|
case AV_PIX_FMT_YUVA420P16:
|
|
if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample) {
|
|
s->bits_per_raw_sample = 16;
|
|
} else if (!s->bits_per_raw_sample) {
|
|
s->bits_per_raw_sample = avctx->bits_per_raw_sample;
|
|
}
|
|
if (s->bits_per_raw_sample <= 8) {
|
|
av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample invalid\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (!s->ac && avctx->coder_type == -1) {
|
|
av_log(avctx, AV_LOG_INFO, "bits_per_raw_sample > 8, forcing coder 1\n");
|
|
s->ac = 2;
|
|
}
|
|
if (!s->ac) {
|
|
av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n");
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
s->version = FFMAX(s->version, 1);
|
|
case AV_PIX_FMT_GRAY8:
|
|
case AV_PIX_FMT_YUV444P:
|
|
case AV_PIX_FMT_YUV440P:
|
|
case AV_PIX_FMT_YUV422P:
|
|
case AV_PIX_FMT_YUV420P:
|
|
case AV_PIX_FMT_YUV411P:
|
|
case AV_PIX_FMT_YUV410P:
|
|
case AV_PIX_FMT_YUVA444P:
|
|
case AV_PIX_FMT_YUVA422P:
|
|
case AV_PIX_FMT_YUVA420P:
|
|
s->chroma_planes = desc->nb_components < 3 ? 0 : 1;
|
|
s->colorspace = 0;
|
|
s->transparency = desc->nb_components == 4;
|
|
break;
|
|
case AV_PIX_FMT_RGB32:
|
|
s->colorspace = 1;
|
|
s->transparency = 1;
|
|
s->chroma_planes = 1;
|
|
break;
|
|
case AV_PIX_FMT_0RGB32:
|
|
s->colorspace = 1;
|
|
s->chroma_planes = 1;
|
|
break;
|
|
case AV_PIX_FMT_GBRP9:
|
|
if (!avctx->bits_per_raw_sample)
|
|
s->bits_per_raw_sample = 9;
|
|
case AV_PIX_FMT_GBRP10:
|
|
if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
|
|
s->bits_per_raw_sample = 10;
|
|
case AV_PIX_FMT_GBRP12:
|
|
if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
|
|
s->bits_per_raw_sample = 12;
|
|
case AV_PIX_FMT_GBRP14:
|
|
if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
|
|
s->bits_per_raw_sample = 14;
|
|
else if (!s->bits_per_raw_sample)
|
|
s->bits_per_raw_sample = avctx->bits_per_raw_sample;
|
|
s->colorspace = 1;
|
|
s->chroma_planes = 1;
|
|
s->version = FFMAX(s->version, 1);
|
|
if (!s->ac && avctx->coder_type == -1) {
|
|
av_log(avctx, AV_LOG_INFO, "bits_per_raw_sample > 8, forcing coder 1\n");
|
|
s->ac = 2;
|
|
}
|
|
if (!s->ac) {
|
|
av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n");
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
break;
|
|
default:
|
|
av_log(avctx, AV_LOG_ERROR, "format not supported\n");
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
if (s->transparency) {
|
|
av_log(avctx, AV_LOG_WARNING, "Storing alpha plane, this will require a recent FFV1 decoder to playback!\n");
|
|
}
|
|
if (avctx->context_model > 1U) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid context model %d, valid values are 0 and 1\n", avctx->context_model);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (s->ac > 1)
|
|
for (i = 1; i < 256; i++)
|
|
s->state_transition[i] = ver2_state[i];
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
s->quant_table_count = 2;
|
|
if (s->bits_per_raw_sample <= 8) {
|
|
s->quant_tables[0][0][i]= quant11[i];
|
|
s->quant_tables[0][1][i]= 11*quant11[i];
|
|
s->quant_tables[0][2][i]= 11*11*quant11[i];
|
|
s->quant_tables[1][0][i]= quant11[i];
|
|
s->quant_tables[1][1][i]= 11*quant11[i];
|
|
s->quant_tables[1][2][i]= 11*11*quant5 [i];
|
|
s->quant_tables[1][3][i]= 5*11*11*quant5 [i];
|
|
s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i];
|
|
} else {
|
|
s->quant_tables[0][0][i]= quant9_10bit[i];
|
|
s->quant_tables[0][1][i]= 11*quant9_10bit[i];
|
|
s->quant_tables[0][2][i]= 11*11*quant9_10bit[i];
|
|
s->quant_tables[1][0][i]= quant9_10bit[i];
|
|
s->quant_tables[1][1][i]= 11*quant9_10bit[i];
|
|
s->quant_tables[1][2][i]= 11*11*quant5_10bit[i];
|
|
s->quant_tables[1][3][i]= 5*11*11*quant5_10bit[i];
|
|
s->quant_tables[1][4][i]= 5*5*11*11*quant5_10bit[i];
|
|
}
|
|
}
|
|
s->context_count[0] = (11 * 11 * 11 + 1) / 2;
|
|
s->context_count[1] = (11 * 11 * 5 * 5 * 5 + 1) / 2;
|
|
memcpy(s->quant_table, s->quant_tables[avctx->context_model],
|
|
sizeof(s->quant_table));
|
|
|
|
for (i = 0; i < s->plane_count; i++) {
|
|
PlaneContext *const p = &s->plane[i];
|
|
|
|
memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table));
|
|
p->quant_table_index = avctx->context_model;
|
|
p->context_count = s->context_count[p->quant_table_index];
|
|
}
|
|
|
|
if ((ret = ffv1_allocate_initial_states(s)) < 0)
|
|
return ret;
|
|
|
|
avctx->coded_frame = av_frame_alloc();
|
|
if (!avctx->coded_frame)
|
|
return AVERROR(ENOMEM);
|
|
|
|
avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
|
|
|
|
if (!s->transparency)
|
|
s->plane_count = 2;
|
|
if (!s->chroma_planes && s->version > 3)
|
|
s->plane_count--;
|
|
|
|
avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
|
|
s->picture_number = 0;
|
|
|
|
if (avctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
|
|
for (i = 0; i < s->quant_table_count; i++) {
|
|
s->rc_stat2[i] = av_mallocz(s->context_count[i] *
|
|
sizeof(*s->rc_stat2[i]));
|
|
if (!s->rc_stat2[i])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
if (avctx->stats_in) {
|
|
char *p = avctx->stats_in;
|
|
uint8_t (*best_state)[256] = av_malloc_array(256, 256);
|
|
int gob_count = 0;
|
|
char *next;
|
|
if (!best_state)
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_assert0(s->version >= 2);
|
|
|
|
for (;;) {
|
|
for (j = 0; j < 256; j++)
|
|
for (i = 0; i < 2; i++) {
|
|
s->rc_stat[j][i] = strtol(p, &next, 0);
|
|
if (next == p) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"2Pass file invalid at %d %d [%s]\n", j, i, p);
|
|
av_freep(&best_state);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
p = next;
|
|
}
|
|
for (i = 0; i < s->quant_table_count; i++)
|
|
for (j = 0; j < s->context_count[i]; j++) {
|
|
for (k = 0; k < 32; k++)
|
|
for (m = 0; m < 2; m++) {
|
|
s->rc_stat2[i][j][k][m] = strtol(p, &next, 0);
|
|
if (next == p) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"2Pass file invalid at %d %d %d %d [%s]\n",
|
|
i, j, k, m, p);
|
|
av_freep(&best_state);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
p = next;
|
|
}
|
|
}
|
|
gob_count = strtol(p, &next, 0);
|
|
if (next == p || gob_count <= 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "2Pass file invalid\n");
|
|
av_freep(&best_state);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
p = next;
|
|
while (*p == '\n' || *p == ' ')
|
|
p++;
|
|
if (p[0] == 0)
|
|
break;
|
|
}
|
|
sort_stt(s, s->state_transition);
|
|
|
|
find_best_state(best_state, s->state_transition);
|
|
|
|
for (i = 0; i < s->quant_table_count; i++) {
|
|
for (k = 0; k < 32; k++) {
|
|
double a=0, b=0;
|
|
int jp = 0;
|
|
for (j = 0; j < s->context_count[i]; j++) {
|
|
double p = 128;
|
|
if (s->rc_stat2[i][j][k][0] + s->rc_stat2[i][j][k][1] > 200 && j || a+b > 200) {
|
|
if (a+b)
|
|
p = 256.0 * b / (a + b);
|
|
s->initial_states[i][jp][k] =
|
|
best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
|
|
for(jp++; jp<j; jp++)
|
|
s->initial_states[i][jp][k] = s->initial_states[i][jp-1][k];
|
|
a=b=0;
|
|
}
|
|
a += s->rc_stat2[i][j][k][0];
|
|
b += s->rc_stat2[i][j][k][1];
|
|
if (a+b) {
|
|
p = 256.0 * b / (a + b);
|
|
}
|
|
s->initial_states[i][j][k] =
|
|
best_state[av_clip(round(p), 1, 255)][av_clip_uint8((a + b) / gob_count)];
|
|
}
|
|
}
|
|
}
|
|
av_freep(&best_state);
|
|
}
|
|
|
|
if (s->version > 1) {
|
|
s->num_v_slices = (avctx->width > 352 || avctx->height > 288 || !avctx->slices) ? 2 : 1;
|
|
for (; s->num_v_slices < 9; s->num_v_slices++) {
|
|
for (s->num_h_slices = s->num_v_slices; s->num_h_slices < 2*s->num_v_slices; s->num_h_slices++) {
|
|
if (avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= 64 || !avctx->slices)
|
|
goto slices_ok;
|
|
}
|
|
}
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Unsupported number %d of slices requested, please specify a "
|
|
"supported number with -slices (ex:4,6,9,12,16, ...)\n",
|
|
avctx->slices);
|
|
return AVERROR(ENOSYS);
|
|
slices_ok:
|
|
if ((ret = write_extradata(s)) < 0)
|
|
return ret;
|
|
}
|
|
|
|
if ((ret = ffv1_init_slice_contexts(s)) < 0)
|
|
return ret;
|
|
if ((ret = ffv1_init_slices_state(s)) < 0)
|
|
return ret;
|
|
|
|
#define STATS_OUT_SIZE 1024 * 1024 * 6
|
|
if (avctx->flags & CODEC_FLAG_PASS1) {
|
|
avctx->stats_out = av_mallocz(STATS_OUT_SIZE);
|
|
if (!avctx->stats_out)
|
|
return AVERROR(ENOMEM);
|
|
for (i = 0; i < s->quant_table_count; i++)
|
|
for (j = 0; j < s->slice_count; j++) {
|
|
FFV1Context *sf = s->slice_context[j];
|
|
av_assert0(!sf->rc_stat2[i]);
|
|
sf->rc_stat2[i] = av_mallocz(s->context_count[i] *
|
|
sizeof(*sf->rc_stat2[i]));
|
|
if (!sf->rc_stat2[i])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void encode_slice_header(FFV1Context *f, FFV1Context *fs)
|
|
{
|
|
RangeCoder *c = &fs->c;
|
|
uint8_t state[CONTEXT_SIZE];
|
|
int j;
|
|
memset(state, 128, sizeof(state));
|
|
|
|
put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0);
|
|
put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0);
|
|
put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0);
|
|
put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
|
|
for (j=0; j<f->plane_count; j++) {
|
|
put_symbol(c, state, f->plane[j].quant_table_index, 0);
|
|
av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
|
|
}
|
|
if (!f->picture.f->interlaced_frame)
|
|
put_symbol(c, state, 3, 0);
|
|
else
|
|
put_symbol(c, state, 1 + !f->picture.f->top_field_first, 0);
|
|
put_symbol(c, state, f->picture.f->sample_aspect_ratio.num, 0);
|
|
put_symbol(c, state, f->picture.f->sample_aspect_ratio.den, 0);
|
|
if (f->version > 3) {
|
|
put_rac(c, state, fs->slice_coding_mode == 1);
|
|
if (fs->slice_coding_mode == 1)
|
|
ffv1_clear_slice_state(f, fs);
|
|
put_symbol(c, state, fs->slice_coding_mode, 0);
|
|
if (fs->slice_coding_mode != 1) {
|
|
put_symbol(c, state, fs->slice_rct_by_coef, 0);
|
|
put_symbol(c, state, fs->slice_rct_ry_coef, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void choose_rct_params(FFV1Context *fs, const uint8_t *src[3], const int stride[3], int w, int h)
|
|
{
|
|
#define NB_Y_COEFF 15
|
|
static const int rct_y_coeff[15][2] = {
|
|
{0, 0}, // 4G
|
|
{1, 1}, // R + 2G + B
|
|
{2, 2}, // 2R + 2B
|
|
{0, 2}, // 2G + 2B
|
|
{2, 0}, // 2R + 2G
|
|
{4, 0}, // 4R
|
|
{0, 4}, // 4B
|
|
|
|
{0, 3}, // 1G + 3B
|
|
{3, 0}, // 3R + 1G
|
|
{3, 1}, // 3R + B
|
|
{1, 3}, // R + 3B
|
|
{1, 2}, // R + G + 2B
|
|
{2, 1}, // 2R + G + B
|
|
{0, 1}, // 3G + B
|
|
{1, 0}, // R + 3G
|
|
};
|
|
|
|
int stat[NB_Y_COEFF] = {0};
|
|
int x, y, i, p, best;
|
|
int16_t *sample[3];
|
|
int lbd = fs->bits_per_raw_sample <= 8;
|
|
|
|
for (y = 0; y < h; y++) {
|
|
int lastr=0, lastg=0, lastb=0;
|
|
for (p = 0; p < 3; p++)
|
|
sample[p] = fs->sample_buffer + p*w;
|
|
|
|
for (x = 0; x < w; x++) {
|
|
int b, g, r;
|
|
int ab, ag, ar;
|
|
if (lbd) {
|
|
unsigned v = *((const uint32_t*)(src[0] + x*4 + stride[0]*y));
|
|
b = v & 0xFF;
|
|
g = (v >> 8) & 0xFF;
|
|
r = (v >> 16) & 0xFF;
|
|
} else {
|
|
b = *((const uint16_t*)(src[0] + x*2 + stride[0]*y));
|
|
g = *((const uint16_t*)(src[1] + x*2 + stride[1]*y));
|
|
r = *((const uint16_t*)(src[2] + x*2 + stride[2]*y));
|
|
}
|
|
|
|
ar = r - lastr;
|
|
ag = g - lastg;
|
|
ab = b - lastb;
|
|
if (x && y) {
|
|
int bg = ag - sample[0][x];
|
|
int bb = ab - sample[1][x];
|
|
int br = ar - sample[2][x];
|
|
|
|
br -= bg;
|
|
bb -= bg;
|
|
|
|
for (i = 0; i<NB_Y_COEFF; i++) {
|
|
stat[i] += FFABS(bg + ((br*rct_y_coeff[i][0] + bb*rct_y_coeff[i][1])>>2));
|
|
}
|
|
|
|
}
|
|
sample[0][x] = ag;
|
|
sample[1][x] = ab;
|
|
sample[2][x] = ar;
|
|
|
|
lastr = r;
|
|
lastg = g;
|
|
lastb = b;
|
|
}
|
|
}
|
|
|
|
best = 0;
|
|
for (i=1; i<NB_Y_COEFF; i++) {
|
|
if (stat[i] < stat[best])
|
|
best = i;
|
|
}
|
|
|
|
fs->slice_rct_by_coef = rct_y_coeff[best][1];
|
|
fs->slice_rct_ry_coef = rct_y_coeff[best][0];
|
|
}
|
|
|
|
static int encode_slice(AVCodecContext *c, void *arg)
|
|
{
|
|
FFV1Context *fs = *(void **)arg;
|
|
FFV1Context *f = fs->avctx->priv_data;
|
|
int width = fs->slice_width;
|
|
int height = fs->slice_height;
|
|
int x = fs->slice_x;
|
|
int y = fs->slice_y;
|
|
const AVFrame *const p = f->picture.f;
|
|
const int ps = av_pix_fmt_desc_get(c->pix_fmt)->comp[0].step_minus1 + 1;
|
|
int ret;
|
|
RangeCoder c_bak = fs->c;
|
|
const uint8_t *planes[3] = {p->data[0] + ps*x + y*p->linesize[0],
|
|
p->data[1] + ps*x + y*p->linesize[1],
|
|
p->data[2] + ps*x + y*p->linesize[2]};
|
|
|
|
fs->slice_coding_mode = 0;
|
|
if (f->version > 3) {
|
|
choose_rct_params(fs, planes, p->linesize, width, height);
|
|
} else {
|
|
fs->slice_rct_by_coef = 1;
|
|
fs->slice_rct_ry_coef = 1;
|
|
}
|
|
|
|
retry:
|
|
if (c->coded_frame->key_frame)
|
|
ffv1_clear_slice_state(f, fs);
|
|
if (f->version > 2) {
|
|
encode_slice_header(f, fs);
|
|
}
|
|
if (!fs->ac) {
|
|
if (f->version > 2)
|
|
put_rac(&fs->c, (uint8_t[]) { 129 }, 0);
|
|
fs->ac_byte_count = f->version > 2 || (!x && !y) ? ff_rac_terminate(&fs->c) : 0;
|
|
init_put_bits(&fs->pb,
|
|
fs->c.bytestream_start + fs->ac_byte_count,
|
|
fs->c.bytestream_end - fs->c.bytestream_start - fs->ac_byte_count);
|
|
}
|
|
|
|
if (f->colorspace == 0) {
|
|
const int chroma_width = FF_CEIL_RSHIFT(width, f->chroma_h_shift);
|
|
const int chroma_height = FF_CEIL_RSHIFT(height, f->chroma_v_shift);
|
|
const int cx = x >> f->chroma_h_shift;
|
|
const int cy = y >> f->chroma_v_shift;
|
|
|
|
ret = encode_plane(fs, p->data[0] + ps*x + y*p->linesize[0], width, height, p->linesize[0], 0);
|
|
|
|
if (f->chroma_planes) {
|
|
ret |= encode_plane(fs, p->data[1] + ps*cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
|
|
ret |= encode_plane(fs, p->data[2] + ps*cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
|
|
}
|
|
if (fs->transparency)
|
|
ret |= encode_plane(fs, p->data[3] + ps*x + y*p->linesize[3], width, height, p->linesize[3], 2);
|
|
} else {
|
|
ret = encode_rgb_frame(fs, planes, width, height, p->linesize);
|
|
}
|
|
emms_c();
|
|
|
|
if (ret < 0) {
|
|
av_assert0(fs->slice_coding_mode == 0);
|
|
if (fs->version < 4 || !fs->ac) {
|
|
av_log(c, AV_LOG_ERROR, "Buffer too small\n");
|
|
return ret;
|
|
}
|
|
av_log(c, AV_LOG_DEBUG, "Coding slice as PCM\n");
|
|
fs->slice_coding_mode = 1;
|
|
fs->c = c_bak;
|
|
goto retry;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
|
const AVFrame *pict, int *got_packet)
|
|
{
|
|
FFV1Context *f = avctx->priv_data;
|
|
RangeCoder *const c = &f->slice_context[0]->c;
|
|
AVFrame *const p = f->picture.f;
|
|
int used_count = 0;
|
|
uint8_t keystate = 128;
|
|
uint8_t *buf_p;
|
|
int i, ret;
|
|
int64_t maxsize = FF_MIN_BUFFER_SIZE
|
|
+ avctx->width*avctx->height*35LL*4;
|
|
|
|
if(!pict) {
|
|
if (avctx->flags & CODEC_FLAG_PASS1) {
|
|
int j, k, m;
|
|
char *p = avctx->stats_out;
|
|
char *end = p + STATS_OUT_SIZE;
|
|
|
|
memset(f->rc_stat, 0, sizeof(f->rc_stat));
|
|
for (i = 0; i < f->quant_table_count; i++)
|
|
memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i]));
|
|
|
|
for (j = 0; j < f->slice_count; j++) {
|
|
FFV1Context *fs = f->slice_context[j];
|
|
for (i = 0; i < 256; i++) {
|
|
f->rc_stat[i][0] += fs->rc_stat[i][0];
|
|
f->rc_stat[i][1] += fs->rc_stat[i][1];
|
|
}
|
|
for (i = 0; i < f->quant_table_count; i++) {
|
|
for (k = 0; k < f->context_count[i]; k++)
|
|
for (m = 0; m < 32; m++) {
|
|
f->rc_stat2[i][k][m][0] += fs->rc_stat2[i][k][m][0];
|
|
f->rc_stat2[i][k][m][1] += fs->rc_stat2[i][k][m][1];
|
|
}
|
|
}
|
|
}
|
|
|
|
for (j = 0; j < 256; j++) {
|
|
snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
|
|
f->rc_stat[j][0], f->rc_stat[j][1]);
|
|
p += strlen(p);
|
|
}
|
|
snprintf(p, end - p, "\n");
|
|
|
|
for (i = 0; i < f->quant_table_count; i++) {
|
|
for (j = 0; j < f->context_count[i]; j++)
|
|
for (m = 0; m < 32; m++) {
|
|
snprintf(p, end - p, "%" PRIu64 " %" PRIu64 " ",
|
|
f->rc_stat2[i][j][m][0], f->rc_stat2[i][j][m][1]);
|
|
p += strlen(p);
|
|
}
|
|
}
|
|
snprintf(p, end - p, "%d\n", f->gob_count);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (f->version > 3)
|
|
maxsize = FF_MIN_BUFFER_SIZE + avctx->width*avctx->height*3LL*4;
|
|
|
|
if ((ret = ff_alloc_packet2(avctx, pkt, maxsize)) < 0)
|
|
return ret;
|
|
|
|
ff_init_range_encoder(c, pkt->data, pkt->size);
|
|
ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
|
|
|
|
av_frame_unref(p);
|
|
if ((ret = av_frame_ref(p, pict)) < 0)
|
|
return ret;
|
|
avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
|
|
|
|
if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) {
|
|
put_rac(c, &keystate, 1);
|
|
avctx->coded_frame->key_frame = 1;
|
|
f->gob_count++;
|
|
write_header(f);
|
|
} else {
|
|
put_rac(c, &keystate, 0);
|
|
avctx->coded_frame->key_frame = 0;
|
|
}
|
|
|
|
if (f->ac > 1) {
|
|
int i;
|
|
for (i = 1; i < 256; i++) {
|
|
c->one_state[i] = f->state_transition[i];
|
|
c->zero_state[256 - i] = 256 - c->one_state[i];
|
|
}
|
|
}
|
|
|
|
for (i = 1; i < f->slice_count; i++) {
|
|
FFV1Context *fs = f->slice_context[i];
|
|
uint8_t *start = pkt->data + (pkt->size - used_count) * (int64_t)i / f->slice_count;
|
|
int len = pkt->size / f->slice_count;
|
|
ff_init_range_encoder(&fs->c, start, len);
|
|
}
|
|
avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL,
|
|
f->slice_count, sizeof(void *));
|
|
|
|
buf_p = pkt->data;
|
|
for (i = 0; i < f->slice_count; i++) {
|
|
FFV1Context *fs = f->slice_context[i];
|
|
int bytes;
|
|
|
|
if (fs->ac) {
|
|
uint8_t state = 129;
|
|
put_rac(&fs->c, &state, 0);
|
|
bytes = ff_rac_terminate(&fs->c);
|
|
} else {
|
|
flush_put_bits(&fs->pb); // FIXME: nicer padding
|
|
bytes = fs->ac_byte_count + (put_bits_count(&fs->pb) + 7) / 8;
|
|
}
|
|
if (i > 0 || f->version > 2) {
|
|
av_assert0(bytes < pkt->size / f->slice_count);
|
|
memmove(buf_p, fs->c.bytestream_start, bytes);
|
|
av_assert0(bytes < (1 << 24));
|
|
AV_WB24(buf_p + bytes, bytes);
|
|
bytes += 3;
|
|
}
|
|
if (f->ec) {
|
|
unsigned v;
|
|
buf_p[bytes++] = 0;
|
|
v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, buf_p, bytes);
|
|
AV_WL32(buf_p + bytes, v);
|
|
bytes += 4;
|
|
}
|
|
buf_p += bytes;
|
|
}
|
|
|
|
if (avctx->flags & CODEC_FLAG_PASS1)
|
|
avctx->stats_out[0] = '\0';
|
|
|
|
f->picture_number++;
|
|
pkt->size = buf_p - pkt->data;
|
|
pkt->pts =
|
|
pkt->dts = pict->pts;
|
|
pkt->flags |= AV_PKT_FLAG_KEY * avctx->coded_frame->key_frame;
|
|
*got_packet = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int encode_close(AVCodecContext *avctx)
|
|
{
|
|
av_frame_free(&avctx->coded_frame);
|
|
ffv1_close(avctx);
|
|
return 0;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(FFV1Context, x)
|
|
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
|
|
static const AVOption options[] = {
|
|
{ "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVClass ffv1_class = {
|
|
.class_name = "ffv1 encoder",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
static const AVCodecDefault ffv1_defaults[] = {
|
|
{ "coder", "-1" },
|
|
{ NULL },
|
|
};
|
|
|
|
AVCodec ff_ffv1_encoder = {
|
|
.name = "ffv1",
|
|
.long_name = NULL_IF_CONFIG_SMALL("FFmpeg video codec #1"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_FFV1,
|
|
.priv_data_size = sizeof(FFV1Context),
|
|
.init = encode_init,
|
|
.encode2 = encode_frame,
|
|
.close = encode_close,
|
|
.capabilities = CODEC_CAP_SLICE_THREADS | CODEC_CAP_DELAY,
|
|
.pix_fmts = (const enum AVPixelFormat[]) {
|
|
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV444P,
|
|
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV411P,
|
|
AV_PIX_FMT_YUV410P, AV_PIX_FMT_0RGB32, AV_PIX_FMT_RGB32, AV_PIX_FMT_YUV420P16,
|
|
AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9,
|
|
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
|
|
AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
|
|
AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
|
|
AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9,
|
|
AV_PIX_FMT_GRAY16, AV_PIX_FMT_GRAY8, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
|
|
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
|
|
AV_PIX_FMT_NONE
|
|
|
|
},
|
|
.defaults = ffv1_defaults,
|
|
.priv_class = &ffv1_class,
|
|
};
|