2 * QuickDraw (qdrw) codec
3 * Copyright (c) 2004 Konstantin Shishkov
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * Apple QuickDraw codec.
27 #include "mpegvideo.h"
29 typedef struct QdrawContext{
30 AVCodecContext *avctx;
32 uint8_t palette[256*3];
35 static int decode_frame(AVCodecContext *avctx,
36 void *data, int *data_size,
37 uint8_t *buf, int buf_size)
39 QdrawContext * const a = avctx->priv_data;
40 AVFrame * const p= (AVFrame*)&a->pic;
46 avctx->release_buffer(avctx, p);
49 if(avctx->get_buffer(avctx, p) < 0){
50 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
56 outdata = a->pic.data[0];
58 buf += 0x68; /* jump to palette */
62 if(colors < 0 || colors > 256) {
63 av_log(avctx, AV_LOG_ERROR, "Error color count - %i(0x%X)\n", colors, colors);
67 for (i = 0; i <= colors; i++) {
69 idx = BE_16(buf); /* color index */
73 av_log(avctx, AV_LOG_ERROR, "Palette index out of range: %u\n", idx);
77 a->palette[idx * 3 + 0] = *buf++;
79 a->palette[idx * 3 + 1] = *buf++;
81 a->palette[idx * 3 + 2] = *buf++;
85 buf += 18; /* skip unneeded data */
86 for (i = 0; i < avctx->height; i++) {
87 int size, left, code, pix;
94 size = BE_16(buf); /* size of packed line */
100 if (code & 0x80 ) { /* run */
103 if ((out + (257 - code) * 3) > (outdata + a->pic.linesize[0]))
105 for (i = 0; i < 257 - code; i++) {
106 *out++ = a->palette[pix * 3 + 0];
107 *out++ = a->palette[pix * 3 + 1];
108 *out++ = a->palette[pix * 3 + 2];
114 if ((out + code * 3) > (outdata + a->pic.linesize[0]))
116 for (i = 0; i <= code; i++) {
118 *out++ = a->palette[pix * 3 + 0];
119 *out++ = a->palette[pix * 3 + 1];
120 *out++ = a->palette[pix * 3 + 2];
127 outdata += a->pic.linesize[0];
130 *data_size = sizeof(AVFrame);
131 *(AVFrame*)data = a->pic;
136 static int decode_init(AVCodecContext *avctx){
137 // QdrawContext * const a = avctx->priv_data;
139 if (avcodec_check_dimensions(avctx, avctx->height, avctx->width) < 0) {
143 avctx->pix_fmt= PIX_FMT_RGB24;
148 AVCodec qdraw_decoder = {
152 sizeof(QdrawContext),