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/* |
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* BitJazz SheerVideo decoder |
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* Copyright (c) 2016 Paul B Mahol |
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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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#define CACHED_BITSTREAM_READER !ARCH_X86_32 |
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#define SHEER_VLC_BITS 12 |
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#include "libavutil/intreadwrite.h" |
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#include "avcodec.h" |
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#include "codec_internal.h" |
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#include "get_bits.h" |
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#include "thread.h" |
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#include "sheervideodata.h" |
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typedef struct SheerVideoContext { |
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unsigned format; |
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int alt; |
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VLC vlc[2]; |
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void (*decode_frame)(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb); |
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} SheerVideoContext; |
38 |
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✗ |
static void decode_ca4i(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
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{ |
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SheerVideoContext *s = avctx->priv_data; |
42 |
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uint16_t *dst_y, *dst_u, *dst_v, *dst_a; |
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int x, y; |
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dst_a = (uint16_t *)p->data[3]; |
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dst_y = (uint16_t *)p->data[0]; |
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dst_u = (uint16_t *)p->data[1]; |
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dst_v = (uint16_t *)p->data[2]; |
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for (y = 0; y < avctx->height; y++) { |
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if (get_bits1(gb)) { |
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for (x = 0; x < avctx->width; x++) { |
53 |
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dst_a[x] = get_bits(gb, 10); |
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dst_y[x] = get_bits(gb, 10); |
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dst_u[x] = get_bits(gb, 10); |
56 |
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dst_v[x] = get_bits(gb, 10); |
57 |
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} |
58 |
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} else { |
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int pred[4] = { 502, 512, 512, 502 }; |
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for (x = 0; x < avctx->width; x++) { |
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int y, u, v, a; |
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a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
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u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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dst_a[x] = pred[3] = (a + pred[3]) & 0x3ff; |
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dst_y[x] = pred[0] = (y + pred[0]) & 0x3ff; |
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dst_u[x] = pred[1] = (u + pred[1]) & 0x3ff; |
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dst_v[x] = pred[2] = (v + pred[2]) & 0x3ff; |
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} |
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} |
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dst_y += p->linesize[0] / 2; |
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dst_u += p->linesize[1] / 2; |
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dst_v += p->linesize[2] / 2; |
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dst_a += p->linesize[3] / 2; |
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} |
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} |
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static void decode_ca4p(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
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{ |
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SheerVideoContext *s = avctx->priv_data; |
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uint16_t *dst_y, *dst_u, *dst_v, *dst_a; |
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int x, y; |
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dst_a = (uint16_t *)p->data[3]; |
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dst_y = (uint16_t *)p->data[0]; |
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dst_u = (uint16_t *)p->data[1]; |
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dst_v = (uint16_t *)p->data[2]; |
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if (get_bits1(gb)) { |
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for (x = 0; x < avctx->width; x++) { |
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dst_a[x] = get_bits(gb, 10); |
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dst_y[x] = get_bits(gb, 10); |
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dst_u[x] = get_bits(gb, 10); |
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dst_v[x] = get_bits(gb, 10); |
100 |
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} |
101 |
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} else { |
102 |
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int pred[4] = { 502, 512, 512, 502 }; |
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for (x = 0; x < avctx->width; x++) { |
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int y, u, v, a; |
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a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
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u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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112 |
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dst_a[x] = pred[3] = (a + pred[3]) & 0x3ff; |
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dst_y[x] = pred[0] = (y + pred[0]) & 0x3ff; |
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dst_u[x] = pred[1] = (u + pred[1]) & 0x3ff; |
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dst_v[x] = pred[2] = (v + pred[2]) & 0x3ff; |
116 |
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} |
117 |
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} |
118 |
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119 |
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dst_y += p->linesize[0] / 2; |
120 |
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dst_u += p->linesize[1] / 2; |
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dst_v += p->linesize[2] / 2; |
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dst_a += p->linesize[3] / 2; |
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for (y = 1; y < avctx->height; y++) { |
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if (get_bits1(gb)) { |
126 |
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for (x = 0; x < avctx->width; x++) { |
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dst_a[x] = get_bits(gb, 10); |
128 |
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dst_y[x] = get_bits(gb, 10); |
129 |
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dst_u[x] = get_bits(gb, 10); |
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dst_v[x] = get_bits(gb, 10); |
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} |
132 |
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} else { |
133 |
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int pred_TL[4], pred_L[4], pred_T[4]; |
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int y, u, v, a; |
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136 |
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pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0] / 2]; |
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pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1] / 2]; |
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pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2] / 2]; |
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pred_TL[3] = pred_L[3] = dst_a[-p->linesize[3] / 2]; |
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141 |
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for (x = 0; x < avctx->width; x++) { |
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pred_T[0] = dst_y[-p->linesize[0] / 2 + x]; |
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pred_T[1] = dst_u[-p->linesize[1] / 2 + x]; |
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pred_T[2] = dst_v[-p->linesize[2] / 2 + x]; |
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pred_T[3] = dst_a[-p->linesize[3] / 2 + x]; |
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147 |
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a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
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u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
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152 |
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dst_a[x] = pred_L[3] = (a + ((3 * (pred_T[3] + pred_L[3]) - 2 * pred_TL[3]) >> 2)) & 0x3ff; |
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dst_y[x] = pred_L[0] = (y + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0x3ff; |
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dst_u[x] = pred_L[1] = (u + ((3 * (pred_T[1] + pred_L[1]) - 2 * pred_TL[1]) >> 2)) & 0x3ff; |
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dst_v[x] = pred_L[2] = (v + ((3 * (pred_T[2] + pred_L[2]) - 2 * pred_TL[2]) >> 2)) & 0x3ff; |
156 |
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157 |
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pred_TL[0] = pred_T[0]; |
158 |
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pred_TL[1] = pred_T[1]; |
159 |
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pred_TL[2] = pred_T[2]; |
160 |
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pred_TL[3] = pred_T[3]; |
161 |
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} |
162 |
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} |
163 |
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164 |
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dst_y += p->linesize[0] / 2; |
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dst_u += p->linesize[1] / 2; |
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dst_v += p->linesize[2] / 2; |
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dst_a += p->linesize[3] / 2; |
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} |
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} |
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static void decode_ybr10i(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
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{ |
173 |
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SheerVideoContext *s = avctx->priv_data; |
174 |
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uint16_t *dst_y, *dst_u, *dst_v; |
175 |
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int x, y; |
176 |
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177 |
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dst_y = (uint16_t *)p->data[0]; |
178 |
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dst_u = (uint16_t *)p->data[1]; |
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dst_v = (uint16_t *)p->data[2]; |
180 |
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181 |
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for (y = 0; y < avctx->height; y++) { |
182 |
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if (get_bits1(gb)) { |
183 |
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for (x = 0; x < avctx->width; x++) { |
184 |
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dst_y[x] = get_bits(gb, 10); |
185 |
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dst_u[x] = get_bits(gb, 10); |
186 |
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dst_v[x] = get_bits(gb, 10); |
187 |
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} |
188 |
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} else { |
189 |
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int pred[4] = { 502, 512, 512, 512 }; |
190 |
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191 |
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for (x = 0; x < avctx->width; x++) { |
192 |
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int y, u, v; |
193 |
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194 |
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✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
195 |
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u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
196 |
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v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
197 |
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198 |
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dst_y[x] = pred[0] = (y + pred[0]) & 0x3ff; |
199 |
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dst_u[x] = pred[1] = (u + pred[1]) & 0x3ff; |
200 |
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dst_v[x] = pred[2] = (v + pred[2]) & 0x3ff; |
201 |
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} |
202 |
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} |
203 |
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204 |
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✗ |
dst_y += p->linesize[0] / 2; |
205 |
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dst_u += p->linesize[1] / 2; |
206 |
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dst_v += p->linesize[2] / 2; |
207 |
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} |
208 |
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} |
209 |
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210 |
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✗ |
static void decode_ybr10(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
211 |
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{ |
212 |
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✗ |
SheerVideoContext *s = avctx->priv_data; |
213 |
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uint16_t *dst_y, *dst_u, *dst_v; |
214 |
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int x, y; |
215 |
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216 |
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✗ |
dst_y = (uint16_t *)p->data[0]; |
217 |
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dst_u = (uint16_t *)p->data[1]; |
218 |
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dst_v = (uint16_t *)p->data[2]; |
219 |
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220 |
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✗ |
if (get_bits1(gb)) { |
221 |
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✗ |
for (x = 0; x < avctx->width; x++) { |
222 |
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✗ |
dst_y[x] = get_bits(gb, 10); |
223 |
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dst_u[x] = get_bits(gb, 10); |
224 |
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✗ |
dst_v[x] = get_bits(gb, 10); |
225 |
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} |
226 |
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} else { |
227 |
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✗ |
int pred[4] = { 502, 512, 512, 512 }; |
228 |
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229 |
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✗ |
for (x = 0; x < avctx->width; x++) { |
230 |
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int y, u, v; |
231 |
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232 |
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✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
233 |
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✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
234 |
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v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
235 |
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236 |
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✗ |
dst_y[x] = pred[0] = (y + pred[0]) & 0x3ff; |
237 |
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✗ |
dst_u[x] = pred[1] = (u + pred[1]) & 0x3ff; |
238 |
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✗ |
dst_v[x] = pred[2] = (v + pred[2]) & 0x3ff; |
239 |
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} |
240 |
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} |
241 |
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|
242 |
|
✗ |
dst_y += p->linesize[0] / 2; |
243 |
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✗ |
dst_u += p->linesize[1] / 2; |
244 |
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✗ |
dst_v += p->linesize[2] / 2; |
245 |
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246 |
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✗ |
for (y = 1; y < avctx->height; y++) { |
247 |
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✗ |
if (get_bits1(gb)) { |
248 |
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✗ |
for (x = 0; x < avctx->width; x++) { |
249 |
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✗ |
dst_y[x] = get_bits(gb, 10); |
250 |
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✗ |
dst_u[x] = get_bits(gb, 10); |
251 |
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✗ |
dst_v[x] = get_bits(gb, 10); |
252 |
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} |
253 |
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} else { |
254 |
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int pred_TL[4], pred_L[4], pred_T[4]; |
255 |
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int y, u, v; |
256 |
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257 |
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✗ |
pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0] / 2]; |
258 |
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✗ |
pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1] / 2]; |
259 |
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✗ |
pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2] / 2]; |
260 |
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261 |
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✗ |
for (x = 0; x < avctx->width; x++) { |
262 |
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✗ |
pred_T[0] = dst_y[-p->linesize[0] / 2 + x]; |
263 |
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✗ |
pred_T[1] = dst_u[-p->linesize[1] / 2 + x]; |
264 |
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✗ |
pred_T[2] = dst_v[-p->linesize[2] / 2 + x]; |
265 |
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|
266 |
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✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
267 |
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✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
268 |
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✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
269 |
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270 |
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✗ |
dst_y[x] = pred_L[0] = (y + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0x3ff; |
271 |
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✗ |
dst_u[x] = pred_L[1] = (u + ((3 * (pred_T[1] + pred_L[1]) - 2 * pred_TL[1]) >> 2)) & 0x3ff; |
272 |
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✗ |
dst_v[x] = pred_L[2] = (v + ((3 * (pred_T[2] + pred_L[2]) - 2 * pred_TL[2]) >> 2)) & 0x3ff; |
273 |
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|
274 |
|
✗ |
pred_TL[0] = pred_T[0]; |
275 |
|
✗ |
pred_TL[1] = pred_T[1]; |
276 |
|
✗ |
pred_TL[2] = pred_T[2]; |
277 |
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} |
278 |
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} |
279 |
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|
280 |
|
✗ |
dst_y += p->linesize[0] / 2; |
281 |
|
✗ |
dst_u += p->linesize[1] / 2; |
282 |
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✗ |
dst_v += p->linesize[2] / 2; |
283 |
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} |
284 |
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✗ |
} |
285 |
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|
286 |
|
✗ |
static void decode_yry10i(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
287 |
|
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{ |
288 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
289 |
|
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uint16_t *dst_y, *dst_u, *dst_v; |
290 |
|
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int x, y; |
291 |
|
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|
292 |
|
✗ |
dst_y = (uint16_t *)p->data[0]; |
293 |
|
✗ |
dst_u = (uint16_t *)p->data[1]; |
294 |
|
✗ |
dst_v = (uint16_t *)p->data[2]; |
295 |
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|
296 |
|
✗ |
for (y = 0; y < avctx->height; y++) { |
297 |
|
✗ |
if (get_bits1(gb)) { |
298 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
299 |
|
✗ |
dst_y[x ] = get_bits(gb, 10); |
300 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 10); |
301 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 10); |
302 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 10); |
303 |
|
|
} |
304 |
|
|
} else { |
305 |
|
✗ |
int pred[4] = { 502, 512, 512, 0 }; |
306 |
|
|
|
307 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
308 |
|
|
int y1, y2, u, v; |
309 |
|
|
|
310 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
311 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
312 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
313 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
314 |
|
|
|
315 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0x3ff; |
316 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0x3ff; |
317 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0x3ff; |
318 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0x3ff; |
319 |
|
|
} |
320 |
|
|
} |
321 |
|
|
|
322 |
|
✗ |
dst_y += p->linesize[0] / 2; |
323 |
|
✗ |
dst_u += p->linesize[1] / 2; |
324 |
|
✗ |
dst_v += p->linesize[2] / 2; |
325 |
|
|
} |
326 |
|
✗ |
} |
327 |
|
|
|
328 |
|
✗ |
static void decode_yry10(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
329 |
|
|
{ |
330 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
331 |
|
|
uint16_t *dst_y, *dst_u, *dst_v; |
332 |
|
|
int x, y; |
333 |
|
|
|
334 |
|
✗ |
dst_y = (uint16_t *)p->data[0]; |
335 |
|
✗ |
dst_u = (uint16_t *)p->data[1]; |
336 |
|
✗ |
dst_v = (uint16_t *)p->data[2]; |
337 |
|
|
|
338 |
|
✗ |
if (get_bits1(gb)) { |
339 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
340 |
|
✗ |
dst_y[x ] = get_bits(gb, 10); |
341 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 10); |
342 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 10); |
343 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 10); |
344 |
|
|
} |
345 |
|
|
} else { |
346 |
|
✗ |
int pred[4] = { 502, 512, 512, 0 }; |
347 |
|
|
|
348 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
349 |
|
|
int y1, y2, u, v; |
350 |
|
|
|
351 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
352 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
353 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
354 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
355 |
|
|
|
356 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0x3ff; |
357 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0x3ff; |
358 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0x3ff; |
359 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0x3ff; |
360 |
|
|
} |
361 |
|
|
} |
362 |
|
|
|
363 |
|
✗ |
dst_y += p->linesize[0] / 2; |
364 |
|
✗ |
dst_u += p->linesize[1] / 2; |
365 |
|
✗ |
dst_v += p->linesize[2] / 2; |
366 |
|
|
|
367 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
368 |
|
✗ |
if (get_bits1(gb)) { |
369 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
370 |
|
✗ |
dst_y[x ] = get_bits(gb, 10); |
371 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 10); |
372 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 10); |
373 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 10); |
374 |
|
|
} |
375 |
|
|
} else { |
376 |
|
|
int pred_TL[6], pred_L[6], pred_T[6]; |
377 |
|
|
int y1, y2, u, v; |
378 |
|
|
|
379 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0] / 2]; |
380 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1] / 2]; |
381 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2] / 2]; |
382 |
|
|
|
383 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
384 |
|
✗ |
pred_T[0] = dst_y[-p->linesize[0] / 2 + x]; |
385 |
|
✗ |
pred_T[3] = dst_y[-p->linesize[0] / 2 + x + 1]; |
386 |
|
✗ |
pred_T[1] = dst_u[-p->linesize[1] / 2 + x / 2]; |
387 |
|
✗ |
pred_T[2] = dst_v[-p->linesize[2] / 2 + x / 2]; |
388 |
|
|
|
389 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
390 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
391 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
392 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
393 |
|
|
|
394 |
|
✗ |
dst_y[x ] = pred_L[0] = (y1 + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0x3ff; |
395 |
|
✗ |
dst_u[x / 2] = pred_L[1] = (u + (((pred_L[1] - pred_TL[1]) >> 1) + pred_T[1])) & 0x3ff; |
396 |
|
✗ |
dst_y[x + 1] = pred_L[0] = (y2 + ((3 * (pred_T[3] + pred_L[0]) - 2 * pred_T[0]) >> 2)) & 0x3ff; |
397 |
|
✗ |
dst_v[x / 2] = pred_L[2] = (v + (((pred_L[2] - pred_TL[2]) >> 1) + pred_T[2])) & 0x3ff; |
398 |
|
|
|
399 |
|
✗ |
pred_TL[0] = pred_T[3]; |
400 |
|
✗ |
pred_TL[1] = pred_T[1]; |
401 |
|
✗ |
pred_TL[2] = pred_T[2]; |
402 |
|
|
} |
403 |
|
|
} |
404 |
|
|
|
405 |
|
✗ |
dst_y += p->linesize[0] / 2; |
406 |
|
✗ |
dst_u += p->linesize[1] / 2; |
407 |
|
✗ |
dst_v += p->linesize[2] / 2; |
408 |
|
|
} |
409 |
|
✗ |
} |
410 |
|
|
|
411 |
|
✗ |
static void decode_ca2i(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
412 |
|
|
{ |
413 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
414 |
|
|
uint16_t *dst_y, *dst_u, *dst_v, *dst_a; |
415 |
|
|
int x, y; |
416 |
|
|
|
417 |
|
✗ |
dst_y = (uint16_t *)p->data[0]; |
418 |
|
✗ |
dst_u = (uint16_t *)p->data[1]; |
419 |
|
✗ |
dst_v = (uint16_t *)p->data[2]; |
420 |
|
✗ |
dst_a = (uint16_t *)p->data[3]; |
421 |
|
|
|
422 |
|
✗ |
for (y = 0; y < avctx->height; y++) { |
423 |
|
✗ |
if (get_bits1(gb)) { |
424 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
425 |
|
✗ |
dst_a[x ] = get_bits(gb, 10); |
426 |
|
✗ |
dst_y[x ] = get_bits(gb, 10); |
427 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 10); |
428 |
|
✗ |
dst_a[x + 1] = get_bits(gb, 10); |
429 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 10); |
430 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 10); |
431 |
|
|
} |
432 |
|
|
} else { |
433 |
|
✗ |
int pred[4] = { 502, 512, 512, 502 }; |
434 |
|
|
|
435 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
436 |
|
|
int y1, y2, u, v, a1, a2; |
437 |
|
|
|
438 |
|
✗ |
a1 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
439 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
440 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
441 |
|
✗ |
a2 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
442 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
443 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
444 |
|
|
|
445 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0x3ff; |
446 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0x3ff; |
447 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0x3ff; |
448 |
|
✗ |
dst_a[x ] = pred[3] = (a1 + pred[3]) & 0x3ff; |
449 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0x3ff; |
450 |
|
✗ |
dst_a[x + 1] = pred[3] = (a2 + pred[3]) & 0x3ff; |
451 |
|
|
} |
452 |
|
|
} |
453 |
|
|
|
454 |
|
✗ |
dst_y += p->linesize[0] / 2; |
455 |
|
✗ |
dst_u += p->linesize[1] / 2; |
456 |
|
✗ |
dst_v += p->linesize[2] / 2; |
457 |
|
✗ |
dst_a += p->linesize[3] / 2; |
458 |
|
|
} |
459 |
|
✗ |
} |
460 |
|
|
|
461 |
|
✗ |
static void decode_ca2p(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
462 |
|
|
{ |
463 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
464 |
|
|
uint16_t *dst_y, *dst_u, *dst_v, *dst_a; |
465 |
|
|
int x, y; |
466 |
|
|
|
467 |
|
✗ |
dst_y = (uint16_t *)p->data[0]; |
468 |
|
✗ |
dst_u = (uint16_t *)p->data[1]; |
469 |
|
✗ |
dst_v = (uint16_t *)p->data[2]; |
470 |
|
✗ |
dst_a = (uint16_t *)p->data[3]; |
471 |
|
|
|
472 |
|
✗ |
if (get_bits1(gb)) { |
473 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
474 |
|
✗ |
dst_a[x ] = get_bits(gb, 10); |
475 |
|
✗ |
dst_y[x ] = get_bits(gb, 10); |
476 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 10); |
477 |
|
✗ |
dst_a[x + 1] = get_bits(gb, 10); |
478 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 10); |
479 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 10); |
480 |
|
|
} |
481 |
|
|
} else { |
482 |
|
✗ |
int pred[4] = { 502, 512, 512, 502 }; |
483 |
|
|
|
484 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
485 |
|
|
int y1, y2, u, v, a1, a2; |
486 |
|
|
|
487 |
|
✗ |
a1 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
488 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
489 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
490 |
|
✗ |
a2 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
491 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
492 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
493 |
|
|
|
494 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0x3ff; |
495 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0x3ff; |
496 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0x3ff; |
497 |
|
✗ |
dst_a[x ] = pred[3] = (a1 + pred[3]) & 0x3ff; |
498 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0x3ff; |
499 |
|
✗ |
dst_a[x + 1] = pred[3] = (a2 + pred[3]) & 0x3ff; |
500 |
|
|
} |
501 |
|
|
} |
502 |
|
|
|
503 |
|
✗ |
dst_y += p->linesize[0] / 2; |
504 |
|
✗ |
dst_u += p->linesize[1] / 2; |
505 |
|
✗ |
dst_v += p->linesize[2] / 2; |
506 |
|
✗ |
dst_a += p->linesize[3] / 2; |
507 |
|
|
|
508 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
509 |
|
✗ |
if (get_bits1(gb)) { |
510 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
511 |
|
✗ |
dst_a[x ] = get_bits(gb, 10); |
512 |
|
✗ |
dst_y[x ] = get_bits(gb, 10); |
513 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 10); |
514 |
|
✗ |
dst_a[x + 1] = get_bits(gb, 10); |
515 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 10); |
516 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 10); |
517 |
|
|
} |
518 |
|
|
} else { |
519 |
|
|
int pred_TL[6], pred_L[6], pred_T[6]; |
520 |
|
|
int y1, y2, u, v, a1, a2; |
521 |
|
|
|
522 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0] / 2]; |
523 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1] / 2]; |
524 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2] / 2]; |
525 |
|
✗ |
pred_TL[4] = pred_L[4] = dst_a[-p->linesize[3] / 2]; |
526 |
|
|
|
527 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
528 |
|
✗ |
pred_T[0] = dst_y[-p->linesize[0] / 2 + x]; |
529 |
|
✗ |
pred_T[3] = dst_y[-p->linesize[0] / 2 + x + 1]; |
530 |
|
✗ |
pred_T[1] = dst_u[-p->linesize[1] / 2 + x / 2]; |
531 |
|
✗ |
pred_T[2] = dst_v[-p->linesize[2] / 2 + x / 2]; |
532 |
|
✗ |
pred_T[4] = dst_a[-p->linesize[3] / 2 + x]; |
533 |
|
✗ |
pred_T[5] = dst_a[-p->linesize[3] / 2 + x + 1]; |
534 |
|
|
|
535 |
|
✗ |
a1 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
536 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
537 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
538 |
|
✗ |
a2 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
539 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
540 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
541 |
|
|
|
542 |
|
✗ |
dst_y[x ] = pred_L[0] = (y1 + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0x3ff; |
543 |
|
✗ |
dst_u[x / 2] = pred_L[1] = (u + (((pred_L[1] - pred_TL[1]) >> 1) + pred_T[1])) & 0x3ff; |
544 |
|
✗ |
dst_y[x + 1] = pred_L[0] = (y2 + ((3 * (pred_T[3] + pred_L[0]) - 2 * pred_T[0]) >> 2)) & 0x3ff; |
545 |
|
✗ |
dst_v[x / 2] = pred_L[2] = (v + (((pred_L[2] - pred_TL[2]) >> 1) + pred_T[2])) & 0x3ff; |
546 |
|
✗ |
dst_a[x ] = pred_L[4] = (a1 + ((3 * (pred_T[4] + pred_L[4]) - 2 * pred_TL[4]) >> 2)) & 0x3ff; |
547 |
|
✗ |
dst_a[x + 1] = pred_L[4] = (a2 + ((3 * (pred_T[5] + pred_L[4]) - 2 * pred_T[4]) >> 2)) & 0x3ff; |
548 |
|
|
|
549 |
|
✗ |
pred_TL[0] = pred_T[3]; |
550 |
|
✗ |
pred_TL[1] = pred_T[1]; |
551 |
|
✗ |
pred_TL[2] = pred_T[2]; |
552 |
|
✗ |
pred_TL[4] = pred_T[5]; |
553 |
|
|
} |
554 |
|
|
} |
555 |
|
|
|
556 |
|
✗ |
dst_y += p->linesize[0] / 2; |
557 |
|
✗ |
dst_u += p->linesize[1] / 2; |
558 |
|
✗ |
dst_v += p->linesize[2] / 2; |
559 |
|
✗ |
dst_a += p->linesize[3] / 2; |
560 |
|
|
} |
561 |
|
✗ |
} |
562 |
|
|
|
563 |
|
✗ |
static void decode_c82i(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
564 |
|
|
{ |
565 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
566 |
|
|
uint8_t *dst_y, *dst_u, *dst_v, *dst_a; |
567 |
|
|
int x, y; |
568 |
|
|
|
569 |
|
✗ |
dst_y = p->data[0]; |
570 |
|
✗ |
dst_u = p->data[1]; |
571 |
|
✗ |
dst_v = p->data[2]; |
572 |
|
✗ |
dst_a = p->data[3]; |
573 |
|
|
|
574 |
|
✗ |
for (y = 0; y < avctx->height; y += 1) { |
575 |
|
✗ |
if (get_bits1(gb)) { |
576 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
577 |
|
✗ |
dst_a[x ] = get_bits(gb, 8); |
578 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
579 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8); |
580 |
|
✗ |
dst_a[x + 1] = get_bits(gb, 8); |
581 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
582 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8); |
583 |
|
|
} |
584 |
|
|
} else { |
585 |
|
✗ |
int pred[4] = { 125, -128, -128, 125 }; |
586 |
|
|
|
587 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
588 |
|
|
int y1, y2, u, v, a1, a2; |
589 |
|
|
|
590 |
|
✗ |
a1 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
591 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
592 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
593 |
|
✗ |
a2 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
594 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
595 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
596 |
|
|
|
597 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0xff; |
598 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0xff; |
599 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0xff; |
600 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0xff; |
601 |
|
✗ |
dst_a[x ] = pred[3] = (a1 + pred[3]) & 0xff; |
602 |
|
✗ |
dst_a[x + 1] = pred[3] = (a2 + pred[3]) & 0xff; |
603 |
|
|
} |
604 |
|
|
} |
605 |
|
|
|
606 |
|
✗ |
dst_y += p->linesize[0]; |
607 |
|
✗ |
dst_u += p->linesize[1]; |
608 |
|
✗ |
dst_v += p->linesize[2]; |
609 |
|
✗ |
dst_a += p->linesize[3]; |
610 |
|
|
} |
611 |
|
✗ |
} |
612 |
|
|
|
613 |
|
✗ |
static void decode_c82p(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
614 |
|
|
{ |
615 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
616 |
|
|
uint8_t *dst_y, *dst_u, *dst_v, *dst_a; |
617 |
|
|
int x, y; |
618 |
|
|
|
619 |
|
✗ |
dst_y = p->data[0]; |
620 |
|
✗ |
dst_u = p->data[1]; |
621 |
|
✗ |
dst_v = p->data[2]; |
622 |
|
✗ |
dst_a = p->data[3]; |
623 |
|
|
|
624 |
|
✗ |
if (get_bits1(gb)) { |
625 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
626 |
|
✗ |
dst_a[x ] = get_bits(gb, 8); |
627 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
628 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8); |
629 |
|
✗ |
dst_a[x + 1] = get_bits(gb, 8); |
630 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
631 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8); |
632 |
|
|
} |
633 |
|
|
} else { |
634 |
|
✗ |
int pred[4] = { 125, -128, -128, 125 }; |
635 |
|
|
|
636 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
637 |
|
|
int y1, y2, u, v, a1, a2; |
638 |
|
|
|
639 |
|
✗ |
a1 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
640 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
641 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
642 |
|
✗ |
a2 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
643 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
644 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
645 |
|
|
|
646 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0xff; |
647 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0xff; |
648 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0xff; |
649 |
|
✗ |
dst_a[x ] = pred[3] = (a1 + pred[3]) & 0xff; |
650 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0xff; |
651 |
|
✗ |
dst_a[x + 1] = pred[3] = (a2 + pred[3]) & 0xff; |
652 |
|
|
} |
653 |
|
|
} |
654 |
|
|
|
655 |
|
✗ |
dst_y += p->linesize[0]; |
656 |
|
✗ |
dst_u += p->linesize[1]; |
657 |
|
✗ |
dst_v += p->linesize[2]; |
658 |
|
✗ |
dst_a += p->linesize[3]; |
659 |
|
|
|
660 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
661 |
|
✗ |
if (get_bits1(gb)) { |
662 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
663 |
|
✗ |
dst_a[x ] = get_bits(gb, 8); |
664 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
665 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8); |
666 |
|
✗ |
dst_a[x + 1] = get_bits(gb, 8); |
667 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
668 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8); |
669 |
|
|
} |
670 |
|
|
} else { |
671 |
|
|
int pred_TL[6], pred_L[6], pred_T[6]; |
672 |
|
|
int y1, y2, u, v, a1, a2; |
673 |
|
|
|
674 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0]]; |
675 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1]]; |
676 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2]]; |
677 |
|
✗ |
pred_TL[4] = pred_L[4] = dst_a[-p->linesize[3]]; |
678 |
|
|
|
679 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
680 |
|
✗ |
pred_T[0] = dst_y[-p->linesize[0] + x]; |
681 |
|
✗ |
pred_T[3] = dst_y[-p->linesize[0] + x + 1]; |
682 |
|
✗ |
pred_T[1] = dst_u[-p->linesize[1] + x / 2]; |
683 |
|
✗ |
pred_T[2] = dst_v[-p->linesize[2] + x / 2]; |
684 |
|
✗ |
pred_T[4] = dst_a[-p->linesize[3] + x]; |
685 |
|
✗ |
pred_T[5] = dst_a[-p->linesize[3] + x + 1]; |
686 |
|
|
|
687 |
|
✗ |
a1 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
688 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
689 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
690 |
|
✗ |
a2 = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
691 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
692 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
693 |
|
|
|
694 |
|
✗ |
dst_y[x ] = pred_L[0] = (y1 + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0xff; |
695 |
|
✗ |
dst_u[x / 2] = pred_L[1] = (u + (((pred_L[1] - pred_TL[1]) >> 1) + pred_T[1])) & 0xff; |
696 |
|
✗ |
dst_y[x + 1] = pred_L[0] = (y2 + ((3 * (pred_T[3] + pred_L[0]) - 2 * pred_T[0]) >> 2)) & 0xff; |
697 |
|
✗ |
dst_v[x / 2] = pred_L[2] = (v + (((pred_L[2] - pred_TL[2]) >> 1) + pred_T[2])) & 0xff; |
698 |
|
✗ |
dst_a[x ] = pred_L[4] = (a1 + ((3 * (pred_T[4] + pred_L[4]) - 2 * pred_TL[4]) >> 2)) & 0xff; |
699 |
|
✗ |
dst_a[x + 1] = pred_L[4] = (a2 + ((3 * (pred_T[5] + pred_L[4]) - 2 * pred_T[4]) >> 2)) & 0xff; |
700 |
|
|
|
701 |
|
✗ |
pred_TL[0] = pred_T[3]; |
702 |
|
✗ |
pred_TL[1] = pred_T[1]; |
703 |
|
✗ |
pred_TL[2] = pred_T[2]; |
704 |
|
✗ |
pred_TL[4] = pred_T[5]; |
705 |
|
|
} |
706 |
|
|
} |
707 |
|
|
|
708 |
|
✗ |
dst_y += p->linesize[0]; |
709 |
|
✗ |
dst_u += p->linesize[1]; |
710 |
|
✗ |
dst_v += p->linesize[2]; |
711 |
|
✗ |
dst_a += p->linesize[3]; |
712 |
|
|
} |
713 |
|
✗ |
} |
714 |
|
|
|
715 |
|
✗ |
static void decode_ybyr(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
716 |
|
|
{ |
717 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
718 |
|
|
uint8_t *dst_y, *dst_u, *dst_v; |
719 |
|
|
int x, y; |
720 |
|
|
|
721 |
|
✗ |
dst_y = p->data[0]; |
722 |
|
✗ |
dst_u = p->data[1]; |
723 |
|
✗ |
dst_v = p->data[2]; |
724 |
|
|
|
725 |
|
✗ |
if (get_bits1(gb)) { |
726 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
727 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
728 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8) + 128; |
729 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
730 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8) + 128; |
731 |
|
|
} |
732 |
|
|
} else { |
733 |
|
✗ |
int pred[4] = { -128, 128, 128, 0 }; |
734 |
|
|
|
735 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
736 |
|
|
int y1, y2, u, v; |
737 |
|
|
|
738 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
739 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
740 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
741 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
742 |
|
|
|
743 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0xff; |
744 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0xff; |
745 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0xff; |
746 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0xff; |
747 |
|
|
} |
748 |
|
|
} |
749 |
|
|
|
750 |
|
✗ |
dst_y += p->linesize[0]; |
751 |
|
✗ |
dst_u += p->linesize[1]; |
752 |
|
✗ |
dst_v += p->linesize[2]; |
753 |
|
|
|
754 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
755 |
|
✗ |
if (get_bits1(gb)) { |
756 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
757 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
758 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8) + 128; |
759 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
760 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8) + 128; |
761 |
|
|
} |
762 |
|
|
} else { |
763 |
|
|
int pred_TL[4], pred_L[4], pred_T[4]; |
764 |
|
|
int y1, y2, u, v; |
765 |
|
|
|
766 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0]]; |
767 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1]]; |
768 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2]]; |
769 |
|
|
|
770 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
771 |
|
✗ |
pred_T[0] = dst_y[-p->linesize[0] + x]; |
772 |
|
✗ |
pred_T[3] = dst_y[-p->linesize[0] + x + 1]; |
773 |
|
✗ |
pred_T[1] = dst_u[-p->linesize[1] + x / 2]; |
774 |
|
✗ |
pred_T[2] = dst_v[-p->linesize[2] + x / 2]; |
775 |
|
|
|
776 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
777 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
778 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
779 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
780 |
|
|
|
781 |
|
✗ |
dst_y[x ] = pred_L[0] = (y1 + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0xff; |
782 |
|
✗ |
dst_u[x / 2] = pred_L[1] = (u + (((pred_L[1] - pred_TL[1]) >> 1) + pred_T[1])) & 0xff; |
783 |
|
✗ |
dst_y[x + 1] = pred_L[0] = (y2 + ((3 * (pred_T[3] + pred_L[0]) - 2 * pred_T[0]) >> 2)) & 0xff; |
784 |
|
✗ |
dst_v[x / 2] = pred_L[2] = (v + (((pred_L[2] - pred_TL[2]) >> 1) + pred_T[2])) & 0xff; |
785 |
|
|
|
786 |
|
✗ |
pred_TL[0] = pred_T[3]; |
787 |
|
✗ |
pred_TL[1] = pred_T[1]; |
788 |
|
✗ |
pred_TL[2] = pred_T[2]; |
789 |
|
|
} |
790 |
|
|
} |
791 |
|
|
|
792 |
|
✗ |
dst_y += p->linesize[0]; |
793 |
|
✗ |
dst_u += p->linesize[1]; |
794 |
|
✗ |
dst_v += p->linesize[2]; |
795 |
|
|
} |
796 |
|
✗ |
} |
797 |
|
|
|
798 |
|
✗ |
static void decode_byryi(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
799 |
|
|
{ |
800 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
801 |
|
|
uint8_t *dst_y, *dst_u, *dst_v; |
802 |
|
|
int x, y; |
803 |
|
|
|
804 |
|
✗ |
dst_y = p->data[0]; |
805 |
|
✗ |
dst_u = p->data[1]; |
806 |
|
✗ |
dst_v = p->data[2]; |
807 |
|
|
|
808 |
|
✗ |
if (get_bits1(gb)) { |
809 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
810 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
811 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8); |
812 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
813 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8); |
814 |
|
|
} |
815 |
|
|
} else { |
816 |
|
✗ |
int pred[4] = { 125, -128, -128, 0 }; |
817 |
|
|
|
818 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
819 |
|
|
int y1, y2, u, v; |
820 |
|
|
|
821 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
822 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
823 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
824 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
825 |
|
|
|
826 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0xff; |
827 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0xff; |
828 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0xff; |
829 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0xff; |
830 |
|
|
} |
831 |
|
|
} |
832 |
|
|
|
833 |
|
✗ |
dst_y += p->linesize[0]; |
834 |
|
✗ |
dst_u += p->linesize[1]; |
835 |
|
✗ |
dst_v += p->linesize[2]; |
836 |
|
|
|
837 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
838 |
|
✗ |
if (get_bits1(gb)) { |
839 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
840 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
841 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8); |
842 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
843 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8); |
844 |
|
|
} |
845 |
|
|
} else { |
846 |
|
|
int pred_L[4]; |
847 |
|
|
int y1, y2, u, v; |
848 |
|
|
|
849 |
|
✗ |
pred_L[0] = dst_y[-p->linesize[0]]; |
850 |
|
✗ |
pred_L[1] = dst_u[-p->linesize[1]]; |
851 |
|
✗ |
pred_L[2] = dst_v[-p->linesize[2]]; |
852 |
|
|
|
853 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
854 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
855 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
856 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
857 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
858 |
|
|
|
859 |
|
✗ |
dst_y[x ] = pred_L[0] = (y1 + pred_L[0]) & 0xff; |
860 |
|
✗ |
dst_u[x / 2] = pred_L[1] = (u + pred_L[1]) & 0xff; |
861 |
|
✗ |
dst_y[x + 1] = pred_L[0] = (y2 + pred_L[0]) & 0xff; |
862 |
|
✗ |
dst_v[x / 2] = pred_L[2] = (v + pred_L[2]) & 0xff; |
863 |
|
|
} |
864 |
|
|
} |
865 |
|
|
|
866 |
|
✗ |
dst_y += p->linesize[0]; |
867 |
|
✗ |
dst_u += p->linesize[1]; |
868 |
|
✗ |
dst_v += p->linesize[2]; |
869 |
|
|
} |
870 |
|
✗ |
} |
871 |
|
|
|
872 |
|
✗ |
static void decode_byry(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
873 |
|
|
{ |
874 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
875 |
|
|
uint8_t *dst_y, *dst_u, *dst_v; |
876 |
|
|
int x, y; |
877 |
|
|
|
878 |
|
✗ |
dst_y = p->data[0]; |
879 |
|
✗ |
dst_u = p->data[1]; |
880 |
|
✗ |
dst_v = p->data[2]; |
881 |
|
|
|
882 |
|
✗ |
if (get_bits1(gb)) { |
883 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
884 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
885 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8); |
886 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
887 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8); |
888 |
|
|
} |
889 |
|
|
} else { |
890 |
|
✗ |
int pred[4] = { 125, -128, -128, 0 }; |
891 |
|
|
|
892 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
893 |
|
|
int y1, y2, u, v; |
894 |
|
|
|
895 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
896 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
897 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
898 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
899 |
|
|
|
900 |
|
✗ |
dst_y[x ] = pred[0] = (y1 + pred[0]) & 0xff; |
901 |
|
✗ |
dst_u[x / 2] = pred[1] = (u + pred[1]) & 0xff; |
902 |
|
✗ |
dst_y[x + 1] = pred[0] = (y2 + pred[0]) & 0xff; |
903 |
|
✗ |
dst_v[x / 2] = pred[2] = (v + pred[2]) & 0xff; |
904 |
|
|
} |
905 |
|
|
} |
906 |
|
|
|
907 |
|
✗ |
dst_y += p->linesize[0]; |
908 |
|
✗ |
dst_u += p->linesize[1]; |
909 |
|
✗ |
dst_v += p->linesize[2]; |
910 |
|
|
|
911 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
912 |
|
✗ |
if (get_bits1(gb)) { |
913 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
914 |
|
✗ |
dst_y[x ] = get_bits(gb, 8); |
915 |
|
✗ |
dst_u[x / 2] = get_bits(gb, 8); |
916 |
|
✗ |
dst_y[x + 1] = get_bits(gb, 8); |
917 |
|
✗ |
dst_v[x / 2] = get_bits(gb, 8); |
918 |
|
|
} |
919 |
|
|
} else { |
920 |
|
|
int pred_TL[4], pred_L[4], pred_T[4]; |
921 |
|
|
int y1, y2, u, v; |
922 |
|
|
|
923 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0]]; |
924 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1]]; |
925 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2]]; |
926 |
|
|
|
927 |
|
✗ |
for (x = 0; x < avctx->width; x += 2) { |
928 |
|
✗ |
pred_T[0] = dst_y[-p->linesize[0] + x]; |
929 |
|
✗ |
pred_T[3] = dst_y[-p->linesize[0] + x + 1]; |
930 |
|
✗ |
pred_T[1] = dst_u[-p->linesize[1] + x / 2]; |
931 |
|
✗ |
pred_T[2] = dst_v[-p->linesize[2] + x / 2]; |
932 |
|
|
|
933 |
|
✗ |
y1 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
934 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
935 |
|
✗ |
y2 = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
936 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
937 |
|
|
|
938 |
|
✗ |
dst_y[x ] = pred_L[0] = (y1 + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0xff; |
939 |
|
✗ |
dst_u[x / 2] = pred_L[1] = (u + (((pred_L[1] - pred_TL[1]) >> 1) + pred_T[1])) & 0xff; |
940 |
|
✗ |
dst_y[x + 1] = pred_L[0] = (y2 + ((3 * (pred_T[3] + pred_L[0]) - 2 * pred_T[0]) >> 2)) & 0xff; |
941 |
|
✗ |
dst_v[x / 2] = pred_L[2] = (v + (((pred_L[2] - pred_TL[2]) >> 1) + pred_T[2])) & 0xff; |
942 |
|
|
|
943 |
|
✗ |
pred_TL[0] = pred_T[3]; |
944 |
|
✗ |
pred_TL[1] = pred_T[1]; |
945 |
|
✗ |
pred_TL[2] = pred_T[2]; |
946 |
|
|
} |
947 |
|
|
} |
948 |
|
|
|
949 |
|
✗ |
dst_y += p->linesize[0]; |
950 |
|
✗ |
dst_u += p->linesize[1]; |
951 |
|
✗ |
dst_v += p->linesize[2]; |
952 |
|
|
} |
953 |
|
✗ |
} |
954 |
|
|
|
955 |
|
✗ |
static void decode_ybri(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
956 |
|
|
{ |
957 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
958 |
|
|
uint8_t *dst_y, *dst_u, *dst_v; |
959 |
|
|
int x, y; |
960 |
|
|
|
961 |
|
✗ |
dst_y = p->data[0]; |
962 |
|
✗ |
dst_u = p->data[1]; |
963 |
|
✗ |
dst_v = p->data[2]; |
964 |
|
|
|
965 |
|
✗ |
if (get_bits1(gb)) { |
966 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
967 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
968 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
969 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
970 |
|
|
} |
971 |
|
|
} else { |
972 |
|
✗ |
int pred[4] = { s->alt ? 125 : -146, -128, -128, -128 }; |
973 |
|
|
|
974 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
975 |
|
|
int y, u, v; |
976 |
|
|
|
977 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
978 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
979 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
980 |
|
|
|
981 |
|
✗ |
dst_y[x] = pred[0] = (y + pred[0]) & 0xff; |
982 |
|
✗ |
dst_u[x] = pred[1] = (u + pred[1]) & 0xff; |
983 |
|
✗ |
dst_v[x] = pred[2] = (v + pred[2]) & 0xff; |
984 |
|
|
} |
985 |
|
|
} |
986 |
|
|
|
987 |
|
✗ |
dst_y += p->linesize[0]; |
988 |
|
✗ |
dst_u += p->linesize[1]; |
989 |
|
✗ |
dst_v += p->linesize[2]; |
990 |
|
|
|
991 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
992 |
|
✗ |
if (get_bits1(gb)) { |
993 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
994 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
995 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
996 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
997 |
|
|
} |
998 |
|
|
} else { |
999 |
|
|
int pred_L[4]; |
1000 |
|
|
int y, u, v; |
1001 |
|
|
|
1002 |
|
✗ |
pred_L[0] = dst_y[-p->linesize[0]]; |
1003 |
|
✗ |
pred_L[1] = dst_u[-p->linesize[1]]; |
1004 |
|
✗ |
pred_L[2] = dst_v[-p->linesize[2]]; |
1005 |
|
|
|
1006 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1007 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1008 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1009 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1010 |
|
|
|
1011 |
|
✗ |
dst_y[x] = pred_L[0] = (y + pred_L[0]) & 0xff; |
1012 |
|
✗ |
dst_u[x] = pred_L[1] = (u + pred_L[1]) & 0xff; |
1013 |
|
✗ |
dst_v[x] = pred_L[2] = (v + pred_L[2]) & 0xff; |
1014 |
|
|
} |
1015 |
|
|
} |
1016 |
|
|
|
1017 |
|
✗ |
dst_y += p->linesize[0]; |
1018 |
|
✗ |
dst_u += p->linesize[1]; |
1019 |
|
✗ |
dst_v += p->linesize[2]; |
1020 |
|
|
} |
1021 |
|
✗ |
} |
1022 |
|
|
|
1023 |
|
✗ |
static void decode_ybr(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1024 |
|
|
{ |
1025 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1026 |
|
|
uint8_t *dst_y, *dst_u, *dst_v; |
1027 |
|
|
int x, y; |
1028 |
|
|
|
1029 |
|
✗ |
dst_y = p->data[0]; |
1030 |
|
✗ |
dst_u = p->data[1]; |
1031 |
|
✗ |
dst_v = p->data[2]; |
1032 |
|
|
|
1033 |
|
✗ |
if (get_bits1(gb)) { |
1034 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1035 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
1036 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
1037 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
1038 |
|
|
} |
1039 |
|
|
} else { |
1040 |
|
✗ |
int pred[4] = { s->alt ? 125 : -146, -128, -128, -128 }; |
1041 |
|
|
|
1042 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1043 |
|
|
int y, u, v; |
1044 |
|
|
|
1045 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1046 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1047 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1048 |
|
|
|
1049 |
|
✗ |
dst_y[x] = pred[0] = (y + pred[0]) & 0xff; |
1050 |
|
✗ |
dst_u[x] = pred[1] = (u + pred[1]) & 0xff; |
1051 |
|
✗ |
dst_v[x] = pred[2] = (v + pred[2]) & 0xff; |
1052 |
|
|
} |
1053 |
|
|
} |
1054 |
|
|
|
1055 |
|
✗ |
dst_y += p->linesize[0]; |
1056 |
|
✗ |
dst_u += p->linesize[1]; |
1057 |
|
✗ |
dst_v += p->linesize[2]; |
1058 |
|
|
|
1059 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
1060 |
|
✗ |
if (get_bits1(gb)) { |
1061 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1062 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
1063 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
1064 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
1065 |
|
|
} |
1066 |
|
|
} else { |
1067 |
|
|
int pred_TL[4], pred_L[4], pred_T[4]; |
1068 |
|
|
int y, u, v; |
1069 |
|
|
|
1070 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_y[-p->linesize[0]]; |
1071 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_u[-p->linesize[1]]; |
1072 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_v[-p->linesize[2]]; |
1073 |
|
|
|
1074 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1075 |
|
✗ |
pred_T[0] = dst_y[-p->linesize[0] + x]; |
1076 |
|
✗ |
pred_T[1] = dst_u[-p->linesize[1] + x]; |
1077 |
|
✗ |
pred_T[2] = dst_v[-p->linesize[2] + x]; |
1078 |
|
|
|
1079 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1080 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1081 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1082 |
|
|
|
1083 |
|
✗ |
dst_y[x] = pred_L[0] = (y + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0xff; |
1084 |
|
✗ |
dst_u[x] = pred_L[1] = (u + ((3 * (pred_T[1] + pred_L[1]) - 2 * pred_TL[1]) >> 2)) & 0xff; |
1085 |
|
✗ |
dst_v[x] = pred_L[2] = (v + ((3 * (pred_T[2] + pred_L[2]) - 2 * pred_TL[2]) >> 2)) & 0xff; |
1086 |
|
|
|
1087 |
|
✗ |
pred_TL[0] = pred_T[0]; |
1088 |
|
✗ |
pred_TL[1] = pred_T[1]; |
1089 |
|
✗ |
pred_TL[2] = pred_T[2]; |
1090 |
|
|
} |
1091 |
|
|
} |
1092 |
|
|
|
1093 |
|
✗ |
dst_y += p->linesize[0]; |
1094 |
|
✗ |
dst_u += p->linesize[1]; |
1095 |
|
✗ |
dst_v += p->linesize[2]; |
1096 |
|
|
} |
1097 |
|
✗ |
} |
1098 |
|
|
|
1099 |
|
✗ |
static void decode_aybri(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1100 |
|
|
{ |
1101 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1102 |
|
|
uint8_t *dst_a, *dst_y, *dst_u, *dst_v; |
1103 |
|
|
int x, y; |
1104 |
|
|
|
1105 |
|
✗ |
dst_a = p->data[3]; |
1106 |
|
✗ |
dst_y = p->data[0]; |
1107 |
|
✗ |
dst_u = p->data[1]; |
1108 |
|
✗ |
dst_v = p->data[2]; |
1109 |
|
|
|
1110 |
|
✗ |
if (get_bits1(gb)) { |
1111 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1112 |
|
✗ |
dst_a[x] = get_bits(gb, 8); |
1113 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
1114 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
1115 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
1116 |
|
|
} |
1117 |
|
|
} else { |
1118 |
|
✗ |
int pred[4] = { 125, s->alt ? 125 : -146, -128, -128 }; |
1119 |
|
|
|
1120 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1121 |
|
|
int a, y, u, v; |
1122 |
|
|
|
1123 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1124 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1125 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1126 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1127 |
|
|
|
1128 |
|
✗ |
dst_a[x] = pred[0] = (a + pred[0]) & 0xff; |
1129 |
|
✗ |
dst_y[x] = pred[1] = (y + pred[1]) & 0xff; |
1130 |
|
✗ |
dst_u[x] = pred[2] = (u + pred[2]) & 0xff; |
1131 |
|
✗ |
dst_v[x] = pred[3] = (v + pred[3]) & 0xff; |
1132 |
|
|
} |
1133 |
|
|
} |
1134 |
|
|
|
1135 |
|
✗ |
dst_a += p->linesize[3]; |
1136 |
|
✗ |
dst_y += p->linesize[0]; |
1137 |
|
✗ |
dst_u += p->linesize[1]; |
1138 |
|
✗ |
dst_v += p->linesize[2]; |
1139 |
|
|
|
1140 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
1141 |
|
✗ |
if (get_bits1(gb)) { |
1142 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1143 |
|
✗ |
dst_a[x] = get_bits(gb, 8); |
1144 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
1145 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
1146 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
1147 |
|
|
} |
1148 |
|
|
} else { |
1149 |
|
|
int pred_L[4]; |
1150 |
|
|
int a, y, u, v; |
1151 |
|
|
|
1152 |
|
✗ |
pred_L[0] = dst_a[-p->linesize[3]]; |
1153 |
|
✗ |
pred_L[1] = dst_y[-p->linesize[0]]; |
1154 |
|
✗ |
pred_L[2] = dst_u[-p->linesize[1]]; |
1155 |
|
✗ |
pred_L[3] = dst_v[-p->linesize[2]]; |
1156 |
|
|
|
1157 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1158 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1159 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1160 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1161 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1162 |
|
|
|
1163 |
|
✗ |
dst_a[x] = pred_L[0] = (a + pred_L[0]) & 0xff; |
1164 |
|
✗ |
dst_y[x] = pred_L[1] = (y + pred_L[1]) & 0xff; |
1165 |
|
✗ |
dst_u[x] = pred_L[2] = (u + pred_L[2]) & 0xff; |
1166 |
|
✗ |
dst_v[x] = pred_L[3] = (v + pred_L[3]) & 0xff; |
1167 |
|
|
} |
1168 |
|
|
} |
1169 |
|
|
|
1170 |
|
✗ |
dst_a += p->linesize[3]; |
1171 |
|
✗ |
dst_y += p->linesize[0]; |
1172 |
|
✗ |
dst_u += p->linesize[1]; |
1173 |
|
✗ |
dst_v += p->linesize[2]; |
1174 |
|
|
} |
1175 |
|
✗ |
} |
1176 |
|
|
|
1177 |
|
✗ |
static void decode_aybr(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1178 |
|
|
{ |
1179 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1180 |
|
|
uint8_t *dst_a, *dst_y, *dst_u, *dst_v; |
1181 |
|
|
int x, y; |
1182 |
|
|
|
1183 |
|
✗ |
dst_a = p->data[3]; |
1184 |
|
✗ |
dst_y = p->data[0]; |
1185 |
|
✗ |
dst_u = p->data[1]; |
1186 |
|
✗ |
dst_v = p->data[2]; |
1187 |
|
|
|
1188 |
|
✗ |
if (get_bits1(gb)) { |
1189 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1190 |
|
✗ |
dst_a[x] = get_bits(gb, 8); |
1191 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
1192 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
1193 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
1194 |
|
|
} |
1195 |
|
|
} else { |
1196 |
|
✗ |
int pred[4] = { 125, s->alt ? 125 : -146, -128, -128 }; |
1197 |
|
|
|
1198 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1199 |
|
|
int a, y, u, v; |
1200 |
|
|
|
1201 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1202 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1203 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1204 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1205 |
|
|
|
1206 |
|
✗ |
dst_a[x] = pred[0] = (a + pred[0]) & 0xff; |
1207 |
|
✗ |
dst_y[x] = pred[1] = (y + pred[1]) & 0xff; |
1208 |
|
✗ |
dst_u[x] = pred[2] = (u + pred[2]) & 0xff; |
1209 |
|
✗ |
dst_v[x] = pred[3] = (v + pred[3]) & 0xff; |
1210 |
|
|
} |
1211 |
|
|
} |
1212 |
|
|
|
1213 |
|
✗ |
dst_a += p->linesize[3]; |
1214 |
|
✗ |
dst_y += p->linesize[0]; |
1215 |
|
✗ |
dst_u += p->linesize[1]; |
1216 |
|
✗ |
dst_v += p->linesize[2]; |
1217 |
|
|
|
1218 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
1219 |
|
✗ |
if (get_bits1(gb)) { |
1220 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1221 |
|
✗ |
dst_a[x] = get_bits(gb, 8); |
1222 |
|
✗ |
dst_y[x] = get_bits(gb, 8); |
1223 |
|
✗ |
dst_u[x] = get_bits(gb, 8); |
1224 |
|
✗ |
dst_v[x] = get_bits(gb, 8); |
1225 |
|
|
} |
1226 |
|
|
} else { |
1227 |
|
|
int pred_TL[4], pred_L[4], pred_T[4]; |
1228 |
|
|
int a, y, u, v; |
1229 |
|
|
|
1230 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_a[-p->linesize[3]]; |
1231 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_y[-p->linesize[0]]; |
1232 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_u[-p->linesize[1]]; |
1233 |
|
✗ |
pred_TL[3] = pred_L[3] = dst_v[-p->linesize[2]]; |
1234 |
|
|
|
1235 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1236 |
|
✗ |
pred_T[0] = dst_a[-p->linesize[3] + x]; |
1237 |
|
✗ |
pred_T[1] = dst_y[-p->linesize[0] + x]; |
1238 |
|
✗ |
pred_T[2] = dst_u[-p->linesize[1] + x]; |
1239 |
|
✗ |
pred_T[3] = dst_v[-p->linesize[2] + x]; |
1240 |
|
|
|
1241 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1242 |
|
✗ |
y = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1243 |
|
✗ |
u = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1244 |
|
✗ |
v = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1245 |
|
|
|
1246 |
|
✗ |
dst_a[x] = pred_L[0] = (a + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0xff; |
1247 |
|
✗ |
dst_y[x] = pred_L[1] = (y + ((3 * (pred_T[1] + pred_L[1]) - 2 * pred_TL[1]) >> 2)) & 0xff; |
1248 |
|
✗ |
dst_u[x] = pred_L[2] = (u + ((3 * (pred_T[2] + pred_L[2]) - 2 * pred_TL[2]) >> 2)) & 0xff; |
1249 |
|
✗ |
dst_v[x] = pred_L[3] = (v + ((3 * (pred_T[3] + pred_L[3]) - 2 * pred_TL[3]) >> 2)) & 0xff; |
1250 |
|
|
|
1251 |
|
✗ |
pred_TL[0] = pred_T[0]; |
1252 |
|
✗ |
pred_TL[1] = pred_T[1]; |
1253 |
|
✗ |
pred_TL[2] = pred_T[2]; |
1254 |
|
✗ |
pred_TL[3] = pred_T[3]; |
1255 |
|
|
} |
1256 |
|
|
} |
1257 |
|
|
|
1258 |
|
✗ |
dst_a += p->linesize[3]; |
1259 |
|
✗ |
dst_y += p->linesize[0]; |
1260 |
|
✗ |
dst_u += p->linesize[1]; |
1261 |
|
✗ |
dst_v += p->linesize[2]; |
1262 |
|
|
} |
1263 |
|
✗ |
} |
1264 |
|
|
|
1265 |
|
✗ |
static void decode_argxi(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1266 |
|
|
{ |
1267 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1268 |
|
|
uint16_t *dst_r, *dst_g, *dst_b, *dst_a; |
1269 |
|
|
int x, y; |
1270 |
|
|
|
1271 |
|
✗ |
dst_r = (uint16_t *)p->data[2]; |
1272 |
|
✗ |
dst_g = (uint16_t *)p->data[0]; |
1273 |
|
✗ |
dst_b = (uint16_t *)p->data[1]; |
1274 |
|
✗ |
dst_a = (uint16_t *)p->data[3]; |
1275 |
|
|
|
1276 |
|
✗ |
for (y = 0; y < avctx->height; y++) { |
1277 |
|
✗ |
if (get_bits1(gb)) { |
1278 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1279 |
|
✗ |
dst_a[x] = get_bits(gb, 10); |
1280 |
|
✗ |
dst_r[x] = get_bits(gb, 10); |
1281 |
|
✗ |
dst_g[x] = get_bits(gb, 10); |
1282 |
|
✗ |
dst_b[x] = get_bits(gb, 10); |
1283 |
|
|
} |
1284 |
|
|
} else { |
1285 |
|
✗ |
int pred[4] = { 512, 512, 512, 512 }; |
1286 |
|
|
|
1287 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1288 |
|
|
int r, g, b, a; |
1289 |
|
|
|
1290 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1291 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1292 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1293 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1294 |
|
|
|
1295 |
|
✗ |
dst_a[x] = pred[3] = (a + pred[3]) & 0x3ff; |
1296 |
|
✗ |
dst_r[x] = pred[0] = (r + pred[0]) & 0x3ff; |
1297 |
|
✗ |
dst_g[x] = pred[1] = (r + g + pred[1]) & 0x3ff; |
1298 |
|
✗ |
dst_b[x] = pred[2] = (r + g + b + pred[2]) & 0x3ff; |
1299 |
|
|
} |
1300 |
|
|
} |
1301 |
|
|
|
1302 |
|
✗ |
dst_r += p->linesize[2] / 2; |
1303 |
|
✗ |
dst_g += p->linesize[0] / 2; |
1304 |
|
✗ |
dst_b += p->linesize[1] / 2; |
1305 |
|
✗ |
dst_a += p->linesize[3] / 2; |
1306 |
|
|
} |
1307 |
|
✗ |
} |
1308 |
|
|
|
1309 |
|
✗ |
static void decode_argx(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1310 |
|
|
{ |
1311 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1312 |
|
|
uint16_t *dst_r, *dst_g, *dst_b, *dst_a; |
1313 |
|
|
int x, y; |
1314 |
|
|
|
1315 |
|
✗ |
dst_r = (uint16_t *)p->data[2]; |
1316 |
|
✗ |
dst_g = (uint16_t *)p->data[0]; |
1317 |
|
✗ |
dst_b = (uint16_t *)p->data[1]; |
1318 |
|
✗ |
dst_a = (uint16_t *)p->data[3]; |
1319 |
|
|
|
1320 |
|
✗ |
if (get_bits1(gb)) { |
1321 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1322 |
|
✗ |
dst_a[x] = get_bits(gb, 10); |
1323 |
|
✗ |
dst_r[x] = get_bits(gb, 10); |
1324 |
|
✗ |
dst_g[x] = get_bits(gb, 10); |
1325 |
|
✗ |
dst_b[x] = get_bits(gb, 10); |
1326 |
|
|
} |
1327 |
|
|
} else { |
1328 |
|
✗ |
int pred[4] = { 512, 512, 512, 512 }; |
1329 |
|
|
|
1330 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1331 |
|
|
int r, g, b, a; |
1332 |
|
|
|
1333 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1334 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1335 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1336 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1337 |
|
|
|
1338 |
|
✗ |
dst_a[x] = pred[3] = (a + pred[3]) & 0x3ff; |
1339 |
|
✗ |
dst_r[x] = pred[0] = (r + pred[0]) & 0x3ff; |
1340 |
|
✗ |
dst_g[x] = pred[1] = (r + g + pred[1]) & 0x3ff; |
1341 |
|
✗ |
dst_b[x] = pred[2] = (r + g + b + pred[2]) & 0x3ff; |
1342 |
|
|
} |
1343 |
|
|
} |
1344 |
|
|
|
1345 |
|
✗ |
dst_r += p->linesize[2] / 2; |
1346 |
|
✗ |
dst_g += p->linesize[0] / 2; |
1347 |
|
✗ |
dst_b += p->linesize[1] / 2; |
1348 |
|
✗ |
dst_a += p->linesize[3] / 2; |
1349 |
|
|
|
1350 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
1351 |
|
✗ |
if (get_bits1(gb)) { |
1352 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1353 |
|
✗ |
dst_a[x] = get_bits(gb, 10); |
1354 |
|
✗ |
dst_r[x] = get_bits(gb, 10); |
1355 |
|
✗ |
dst_g[x] = get_bits(gb, 10); |
1356 |
|
✗ |
dst_b[x] = get_bits(gb, 10); |
1357 |
|
|
} |
1358 |
|
|
} else { |
1359 |
|
|
int pred_TL[4], pred_L[4], pred_T[4]; |
1360 |
|
|
int r, g, b, a; |
1361 |
|
|
|
1362 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_r[-p->linesize[2] / 2]; |
1363 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_g[-p->linesize[0] / 2]; |
1364 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_b[-p->linesize[1] / 2]; |
1365 |
|
✗ |
pred_TL[3] = pred_L[3] = dst_a[-p->linesize[3] / 2]; |
1366 |
|
|
|
1367 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1368 |
|
✗ |
pred_T[0] = dst_r[-p->linesize[2] / 2 + x]; |
1369 |
|
✗ |
pred_T[1] = dst_g[-p->linesize[0] / 2 + x]; |
1370 |
|
✗ |
pred_T[2] = dst_b[-p->linesize[1] / 2 + x]; |
1371 |
|
✗ |
pred_T[3] = dst_a[-p->linesize[3] / 2 + x]; |
1372 |
|
|
|
1373 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1374 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1375 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1376 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1377 |
|
|
|
1378 |
|
✗ |
dst_a[x] = pred_L[3] = (a + ((3 * (pred_T[3] + pred_L[3]) - 2 * pred_TL[3]) >> 2)) & 0x3ff; |
1379 |
|
✗ |
dst_r[x] = pred_L[0] = (r + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0x3ff; |
1380 |
|
✗ |
dst_g[x] = pred_L[1] = (r + g + ((3 * (pred_T[1] + pred_L[1]) - 2 * pred_TL[1]) >> 2)) & 0x3ff; |
1381 |
|
✗ |
dst_b[x] = pred_L[2] = (r + g + b + ((3 * (pred_T[2] + pred_L[2]) - 2 * pred_TL[2]) >> 2)) & 0x3ff; |
1382 |
|
|
|
1383 |
|
✗ |
pred_TL[0] = pred_T[0]; |
1384 |
|
✗ |
pred_TL[1] = pred_T[1]; |
1385 |
|
✗ |
pred_TL[2] = pred_T[2]; |
1386 |
|
✗ |
pred_TL[3] = pred_T[3]; |
1387 |
|
|
} |
1388 |
|
|
} |
1389 |
|
|
|
1390 |
|
✗ |
dst_r += p->linesize[2] / 2; |
1391 |
|
✗ |
dst_g += p->linesize[0] / 2; |
1392 |
|
✗ |
dst_b += p->linesize[1] / 2; |
1393 |
|
✗ |
dst_a += p->linesize[3] / 2; |
1394 |
|
|
} |
1395 |
|
✗ |
} |
1396 |
|
|
|
1397 |
|
✗ |
static void decode_rgbxi(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1398 |
|
|
{ |
1399 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1400 |
|
|
uint16_t *dst_r, *dst_g, *dst_b; |
1401 |
|
|
int x, y; |
1402 |
|
|
|
1403 |
|
✗ |
dst_r = (uint16_t *)p->data[2]; |
1404 |
|
✗ |
dst_g = (uint16_t *)p->data[0]; |
1405 |
|
✗ |
dst_b = (uint16_t *)p->data[1]; |
1406 |
|
|
|
1407 |
|
✗ |
for (y = 0; y < avctx->height; y++) { |
1408 |
|
✗ |
if (get_bits1(gb)) { |
1409 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1410 |
|
✗ |
dst_r[x] = get_bits(gb, 10); |
1411 |
|
✗ |
dst_g[x] = get_bits(gb, 10); |
1412 |
|
✗ |
dst_b[x] = get_bits(gb, 10); |
1413 |
|
|
} |
1414 |
|
|
} else { |
1415 |
|
✗ |
int pred[4] = { 512, 512, 512, 0 }; |
1416 |
|
|
|
1417 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1418 |
|
|
int r, g, b; |
1419 |
|
|
|
1420 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1421 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1422 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1423 |
|
|
|
1424 |
|
✗ |
dst_r[x] = pred[0] = (r + pred[0]) & 0x3ff; |
1425 |
|
✗ |
dst_g[x] = pred[1] = (r + g + pred[1]) & 0x3ff; |
1426 |
|
✗ |
dst_b[x] = pred[2] = (r + g + b + pred[2]) & 0x3ff; |
1427 |
|
|
} |
1428 |
|
|
} |
1429 |
|
|
|
1430 |
|
✗ |
dst_r += p->linesize[2] / 2; |
1431 |
|
✗ |
dst_g += p->linesize[0] / 2; |
1432 |
|
✗ |
dst_b += p->linesize[1] / 2; |
1433 |
|
|
} |
1434 |
|
✗ |
} |
1435 |
|
|
|
1436 |
|
✗ |
static void decode_rgbx(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1437 |
|
|
{ |
1438 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1439 |
|
|
uint16_t *dst_r, *dst_g, *dst_b; |
1440 |
|
|
int x, y; |
1441 |
|
|
|
1442 |
|
✗ |
dst_r = (uint16_t *)p->data[2]; |
1443 |
|
✗ |
dst_g = (uint16_t *)p->data[0]; |
1444 |
|
✗ |
dst_b = (uint16_t *)p->data[1]; |
1445 |
|
|
|
1446 |
|
✗ |
if (get_bits1(gb)) { |
1447 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1448 |
|
✗ |
dst_r[x] = get_bits(gb, 10); |
1449 |
|
✗ |
dst_g[x] = get_bits(gb, 10); |
1450 |
|
✗ |
dst_b[x] = get_bits(gb, 10); |
1451 |
|
|
} |
1452 |
|
|
} else { |
1453 |
|
✗ |
int pred[4] = { 512, 512, 512, 0 }; |
1454 |
|
|
|
1455 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1456 |
|
|
int r, g, b; |
1457 |
|
|
|
1458 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1459 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1460 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1461 |
|
|
|
1462 |
|
✗ |
dst_r[x] = pred[0] = (r + pred[0]) & 0x3ff; |
1463 |
|
✗ |
dst_g[x] = pred[1] = (r + g + pred[1]) & 0x3ff; |
1464 |
|
✗ |
dst_b[x] = pred[2] = (r + g + b + pred[2]) & 0x3ff; |
1465 |
|
|
} |
1466 |
|
|
} |
1467 |
|
|
|
1468 |
|
✗ |
dst_r += p->linesize[2] / 2; |
1469 |
|
✗ |
dst_g += p->linesize[0] / 2; |
1470 |
|
✗ |
dst_b += p->linesize[1] / 2; |
1471 |
|
|
|
1472 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
1473 |
|
✗ |
if (get_bits1(gb)) { |
1474 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1475 |
|
✗ |
dst_r[x] = get_bits(gb, 10); |
1476 |
|
✗ |
dst_g[x] = get_bits(gb, 10); |
1477 |
|
✗ |
dst_b[x] = get_bits(gb, 10); |
1478 |
|
|
} |
1479 |
|
|
} else { |
1480 |
|
|
int pred_TL[4], pred_L[4], pred_T[4]; |
1481 |
|
|
int r, g, b; |
1482 |
|
|
|
1483 |
|
✗ |
pred_TL[0] = pred_L[0] = dst_r[-p->linesize[2] / 2]; |
1484 |
|
✗ |
pred_TL[1] = pred_L[1] = dst_g[-p->linesize[0] / 2]; |
1485 |
|
✗ |
pred_TL[2] = pred_L[2] = dst_b[-p->linesize[1] / 2]; |
1486 |
|
|
|
1487 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1488 |
|
✗ |
pred_T[0] = dst_r[-p->linesize[2] / 2 + x]; |
1489 |
|
✗ |
pred_T[1] = dst_g[-p->linesize[0] / 2 + x]; |
1490 |
|
✗ |
pred_T[2] = dst_b[-p->linesize[1] / 2 + x]; |
1491 |
|
|
|
1492 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1493 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1494 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1495 |
|
|
|
1496 |
|
✗ |
dst_r[x] = pred_L[0] = (r + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0x3ff; |
1497 |
|
✗ |
dst_g[x] = pred_L[1] = (r + g + ((3 * (pred_T[1] + pred_L[1]) - 2 * pred_TL[1]) >> 2)) & 0x3ff; |
1498 |
|
✗ |
dst_b[x] = pred_L[2] = (r + g + b + ((3 * (pred_T[2] + pred_L[2]) - 2 * pred_TL[2]) >> 2)) & 0x3ff; |
1499 |
|
|
|
1500 |
|
✗ |
pred_TL[0] = pred_T[0]; |
1501 |
|
✗ |
pred_TL[1] = pred_T[1]; |
1502 |
|
✗ |
pred_TL[2] = pred_T[2]; |
1503 |
|
|
} |
1504 |
|
|
} |
1505 |
|
|
|
1506 |
|
✗ |
dst_r += p->linesize[2] / 2; |
1507 |
|
✗ |
dst_g += p->linesize[0] / 2; |
1508 |
|
✗ |
dst_b += p->linesize[1] / 2; |
1509 |
|
|
} |
1510 |
|
✗ |
} |
1511 |
|
|
|
1512 |
|
✗ |
static void decode_argbi(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1513 |
|
|
{ |
1514 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1515 |
|
|
uint8_t *dst; |
1516 |
|
|
int x, y; |
1517 |
|
|
|
1518 |
|
✗ |
dst = p->data[0]; |
1519 |
|
✗ |
if (get_bits1(gb)) { |
1520 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1521 |
|
✗ |
dst[x * 4 + 0] = get_bits(gb, 8); |
1522 |
|
✗ |
dst[x * 4 + 1] = get_bits(gb, 8); |
1523 |
|
✗ |
dst[x * 4 + 2] = get_bits(gb, 8); |
1524 |
|
✗ |
dst[x * 4 + 3] = get_bits(gb, 8); |
1525 |
|
|
} |
1526 |
|
|
} else { |
1527 |
|
✗ |
int pred[4] = { -128, -128, -128, -128 }; |
1528 |
|
|
|
1529 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1530 |
|
|
int a, r, g, b; |
1531 |
|
|
|
1532 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1533 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1534 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1535 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1536 |
|
|
|
1537 |
|
✗ |
dst[4 * x + 0] = pred[0] = (a + pred[0]) & 0xff; |
1538 |
|
✗ |
dst[4 * x + 1] = pred[1] = (r + pred[1]) & 0xff; |
1539 |
|
✗ |
dst[4 * x + 2] = pred[2] = (r + g + pred[2]) & 0xff; |
1540 |
|
✗ |
dst[4 * x + 3] = pred[3] = (r + g + b + pred[3]) & 0xff; |
1541 |
|
|
} |
1542 |
|
|
} |
1543 |
|
|
|
1544 |
|
✗ |
dst += p->linesize[0]; |
1545 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
1546 |
|
✗ |
if (get_bits1(gb)) { |
1547 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1548 |
|
✗ |
dst[x * 4 + 0] = get_bits(gb, 8); |
1549 |
|
✗ |
dst[x * 4 + 1] = get_bits(gb, 8); |
1550 |
|
✗ |
dst[x * 4 + 2] = get_bits(gb, 8); |
1551 |
|
✗ |
dst[x * 4 + 3] = get_bits(gb, 8); |
1552 |
|
|
} |
1553 |
|
|
} else { |
1554 |
|
|
int pred_L[4]; |
1555 |
|
|
int a, r, g, b; |
1556 |
|
|
|
1557 |
|
✗ |
pred_L[0] = dst[-p->linesize[0] + 0]; |
1558 |
|
✗ |
pred_L[1] = dst[-p->linesize[0] + 1]; |
1559 |
|
✗ |
pred_L[2] = dst[-p->linesize[0] + 2]; |
1560 |
|
✗ |
pred_L[3] = dst[-p->linesize[0] + 3]; |
1561 |
|
|
|
1562 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1563 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1564 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1565 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1566 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1567 |
|
|
|
1568 |
|
✗ |
dst[4 * x + 0] = pred_L[0] = (a + pred_L[0]) & 0xff; |
1569 |
|
✗ |
dst[4 * x + 1] = pred_L[1] = (r + pred_L[1]) & 0xff; |
1570 |
|
✗ |
dst[4 * x + 2] = pred_L[2] = (r + g + pred_L[2]) & 0xff; |
1571 |
|
✗ |
dst[4 * x + 3] = pred_L[3] = (r + g + b + pred_L[3]) & 0xff; |
1572 |
|
|
} |
1573 |
|
|
} |
1574 |
|
✗ |
dst += p->linesize[0]; |
1575 |
|
|
} |
1576 |
|
✗ |
} |
1577 |
|
|
|
1578 |
|
✗ |
static void decode_argb(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1579 |
|
|
{ |
1580 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1581 |
|
|
uint8_t *dst; |
1582 |
|
|
int x, y; |
1583 |
|
|
|
1584 |
|
✗ |
dst = p->data[0]; |
1585 |
|
✗ |
if (get_bits1(gb)) { |
1586 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1587 |
|
✗ |
dst[x * 4 + 0] = get_bits(gb, 8); |
1588 |
|
✗ |
dst[x * 4 + 1] = get_bits(gb, 8); |
1589 |
|
✗ |
dst[x * 4 + 2] = get_bits(gb, 8); |
1590 |
|
✗ |
dst[x * 4 + 3] = get_bits(gb, 8); |
1591 |
|
|
} |
1592 |
|
|
} else { |
1593 |
|
✗ |
int pred[4] = { -128, -128, -128, -128 }; |
1594 |
|
|
|
1595 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1596 |
|
|
int a, r, g, b; |
1597 |
|
|
|
1598 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1599 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1600 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1601 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1602 |
|
|
|
1603 |
|
✗ |
dst[4 * x + 0] = pred[0] = (a + pred[0]) & 0xff; |
1604 |
|
✗ |
dst[4 * x + 1] = pred[1] = (r + pred[1]) & 0xff; |
1605 |
|
✗ |
dst[4 * x + 2] = pred[2] = (r + g + pred[2]) & 0xff; |
1606 |
|
✗ |
dst[4 * x + 3] = pred[3] = (r + g + b + pred[3]) & 0xff; |
1607 |
|
|
} |
1608 |
|
|
} |
1609 |
|
|
|
1610 |
|
✗ |
dst += p->linesize[0]; |
1611 |
|
✗ |
for (y = 1; y < avctx->height; y++) { |
1612 |
|
✗ |
if (get_bits1(gb)) { |
1613 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1614 |
|
✗ |
dst[x * 4 + 0] = get_bits(gb, 8); |
1615 |
|
✗ |
dst[x * 4 + 1] = get_bits(gb, 8); |
1616 |
|
✗ |
dst[x * 4 + 2] = get_bits(gb, 8); |
1617 |
|
✗ |
dst[x * 4 + 3] = get_bits(gb, 8); |
1618 |
|
|
} |
1619 |
|
|
} else { |
1620 |
|
|
int pred_TL[4], pred_L[4], pred_T[4]; |
1621 |
|
|
int a, r, g, b; |
1622 |
|
|
|
1623 |
|
✗ |
pred_TL[0] = pred_L[0] = dst[-p->linesize[0] + 0]; |
1624 |
|
✗ |
pred_TL[1] = pred_L[1] = dst[-p->linesize[0] + 1]; |
1625 |
|
✗ |
pred_TL[2] = pred_L[2] = dst[-p->linesize[0] + 2]; |
1626 |
|
✗ |
pred_TL[3] = pred_L[3] = dst[-p->linesize[0] + 3]; |
1627 |
|
|
|
1628 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1629 |
|
✗ |
pred_T[0] = dst[-p->linesize[0] + 4 * x + 0]; |
1630 |
|
✗ |
pred_T[1] = dst[-p->linesize[0] + 4 * x + 1]; |
1631 |
|
✗ |
pred_T[2] = dst[-p->linesize[0] + 4 * x + 2]; |
1632 |
|
✗ |
pred_T[3] = dst[-p->linesize[0] + 4 * x + 3]; |
1633 |
|
|
|
1634 |
|
✗ |
a = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1635 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1636 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1637 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1638 |
|
|
|
1639 |
|
✗ |
dst[4 * x + 0] = pred_L[0] = (a + ((3 * (pred_T[0] + pred_L[0]) - 2 * pred_TL[0]) >> 2)) & 0xff; |
1640 |
|
✗ |
dst[4 * x + 1] = pred_L[1] = (r + ((3 * (pred_T[1] + pred_L[1]) - 2 * pred_TL[1]) >> 2)) & 0xff; |
1641 |
|
✗ |
dst[4 * x + 2] = pred_L[2] = (r + g + ((3 * (pred_T[2] + pred_L[2]) - 2 * pred_TL[2]) >> 2)) & 0xff; |
1642 |
|
✗ |
dst[4 * x + 3] = pred_L[3] = (r + g + b + ((3 * (pred_T[3] + pred_L[3]) - 2 * pred_TL[3]) >> 2)) & 0xff; |
1643 |
|
|
|
1644 |
|
✗ |
pred_TL[0] = pred_T[0]; |
1645 |
|
✗ |
pred_TL[1] = pred_T[1]; |
1646 |
|
✗ |
pred_TL[2] = pred_T[2]; |
1647 |
|
✗ |
pred_TL[3] = pred_T[3]; |
1648 |
|
|
} |
1649 |
|
|
} |
1650 |
|
✗ |
dst += p->linesize[0]; |
1651 |
|
|
} |
1652 |
|
✗ |
} |
1653 |
|
|
|
1654 |
|
✗ |
static void decode_rgbi(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb) |
1655 |
|
|
{ |
1656 |
|
✗ |
SheerVideoContext *s = avctx->priv_data; |
1657 |
|
|
uint8_t *dst; |
1658 |
|
|
int x, y; |
1659 |
|
|
|
1660 |
|
✗ |
dst = p->data[0]; |
1661 |
|
✗ |
if (get_bits1(gb)) { |
1662 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1663 |
|
✗ |
dst[x * 4 + 0] = get_bits(gb, 8); |
1664 |
|
✗ |
dst[x * 4 + 1] = get_bits(gb, 8); |
1665 |
|
✗ |
dst[x * 4 + 2] = get_bits(gb, 8); |
1666 |
|
|
} |
1667 |
|
|
} else { |
1668 |
|
✗ |
int pred[4] = { -128, -128, -128, -128 }; |
1669 |
|
|
|
1670 |
|
✗ |
for (x = 0; x < avctx->width; x++) { |
1671 |
|
|
int r, g, b; |
1672 |
|
|
|
1673 |
|
✗ |
r = get_vlc2(gb, s->vlc[0].table, SHEER_VLC_BITS, 2); |
1674 |
|
✗ |
g = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1675 |
|
✗ |
b = get_vlc2(gb, s->vlc[1].table, SHEER_VLC_BITS, 2); |
1676 |
|
|
|
1677 |
|
✗ |
dst[4 * x + 0] = pred[0] = (r + pred[0]) & 0xff; |
1678 |
|
✗ |
dst[4 * x + 1] = pred[1] = (r + g + pred[1]) & 0xff; |
1679 |
|
✗ |
dst[4 * x + 2] = pred[2] = (r + g + b + pred[2]) & 0xff; |
1680 |
|
|
} |
1681 |
|
|
} |
1682 |
|
|
|
1683 |
|
✗ |
dst |