2 * QuickDraw (qdrw) codec
3 * Copyright (c) 2004 Konstantin Shishkov
4 * Copyright (c) 2015 Vittorio Giovara
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * Apple QuickDraw codec.
26 * https://developer.apple.com/legacy/library/documentation/mac/QuickDraw/QuickDraw-461.html
29 #include "libavutil/common.h"
30 #include "libavutil/intreadwrite.h"
32 #include "bytestream.h"
35 enum QuickdrawOpcodes {
37 PACKBITSRECT = 0x0098,
41 SHORTCOMMENT = 0x00A0,
47 static int parse_palette(AVCodecContext *avctx, GetByteContext *gbc,
48 uint32_t *pal, int colors)
52 for (i = 0; i <= colors; i++) {
54 unsigned int idx = bytestream2_get_be16(gbc); /* color index */
56 av_log(avctx, AV_LOG_WARNING,
57 "Palette index out of range: %u\n", idx);
58 bytestream2_skip(gbc, 6);
61 if (avctx->pix_fmt != AV_PIX_FMT_PAL8)
62 return AVERROR_INVALIDDATA;
63 r = bytestream2_get_byte(gbc);
64 bytestream2_skip(gbc, 1);
65 g = bytestream2_get_byte(gbc);
66 bytestream2_skip(gbc, 1);
67 b = bytestream2_get_byte(gbc);
68 bytestream2_skip(gbc, 1);
69 pal[idx] = (0xFFU << 24) | (r << 16) | (g << 8) | b;
74 static int decode_rle_bpp2(AVCodecContext *avctx, AVFrame *p, GetByteContext *gbc)
76 int offset = avctx->width;
77 uint8_t *outdata = p->data[0];
80 for (i = 0; i < avctx->height; i++) {
81 int size, left, code, pix;
82 uint8_t *out = outdata;
85 /* size of packed line */
87 size = left = bytestream2_get_be16(gbc);
89 size = left = bytestream2_get_byte(gbc);
90 if (bytestream2_get_bytes_left(gbc) < size)
91 return AVERROR_INVALIDDATA;
95 code = bytestream2_get_byte(gbc);
96 if (code & 0x80 ) { /* run */
97 pix = bytestream2_get_byte(gbc);
98 for (j = 0; j < 257 - code; j++) {
100 out[pos++] = (pix & 0xC0) >> 6;
102 out[pos++] = (pix & 0x30) >> 4;
104 out[pos++] = (pix & 0x0C) >> 2;
106 out[pos++] = (pix & 0x03);
110 for (j = 0; j < code + 1; j++) {
111 pix = bytestream2_get_byte(gbc);
113 out[pos++] = (pix & 0xC0) >> 6;
115 out[pos++] = (pix & 0x30) >> 4;
117 out[pos++] = (pix & 0x0C) >> 2;
119 out[pos++] = (pix & 0x03);
121 left -= 1 + (code + 1);
124 outdata += p->linesize[0];
129 static int decode_rle_bpp4(AVCodecContext *avctx, AVFrame *p, GetByteContext *gbc)
131 int offset = avctx->width;
132 uint8_t *outdata = p->data[0];
135 for (i = 0; i < avctx->height; i++) {
136 int size, left, code, pix;
137 uint8_t *out = outdata;
140 /* size of packed line */
141 size = left = bytestream2_get_be16(gbc);
142 if (bytestream2_get_bytes_left(gbc) < size)
143 return AVERROR_INVALIDDATA;
147 code = bytestream2_get_byte(gbc);
148 if (code & 0x80 ) { /* run */
149 pix = bytestream2_get_byte(gbc);
150 for (j = 0; j < 257 - code; j++) {
152 out[pos++] = (pix & 0xF0) >> 4;
154 out[pos++] = pix & 0xF;
158 for (j = 0; j < code + 1; j++) {
159 pix = bytestream2_get_byte(gbc);
161 out[pos++] = (pix & 0xF0) >> 4;
163 out[pos++] = pix & 0xF;
165 left -= 1 + (code + 1);
168 outdata += p->linesize[0];
173 static int decode_rle16(AVCodecContext *avctx, AVFrame *p, GetByteContext *gbc)
175 int offset = avctx->width;
176 uint8_t *outdata = p->data[0];
179 for (i = 0; i < avctx->height; i++) {
180 int size, left, code, pix;
181 uint16_t *out = (uint16_t *)outdata;
184 /* size of packed line */
185 size = left = bytestream2_get_be16(gbc);
186 if (bytestream2_get_bytes_left(gbc) < size)
187 return AVERROR_INVALIDDATA;
191 code = bytestream2_get_byte(gbc);
192 if (code & 0x80 ) { /* run */
193 pix = bytestream2_get_be16(gbc);
194 for (j = 0; j < 257 - code; j++) {
201 for (j = 0; j < code + 1; j++) {
203 out[pos++] = bytestream2_get_be16(gbc);
205 bytestream2_skip(gbc, 2);
208 left -= 1 + (code + 1) * 2;
211 outdata += p->linesize[0];
216 static int decode_rle(AVCodecContext *avctx, AVFrame *p, GetByteContext *gbc,
220 int offset = avctx->width * step;
221 uint8_t *outdata = p->data[0];
223 for (i = 0; i < avctx->height; i++) {
224 int size, left, code, pix;
225 uint8_t *out = outdata;
228 /* size of packed line */
229 size = left = bytestream2_get_be16(gbc);
230 if (bytestream2_get_bytes_left(gbc) < size)
231 return AVERROR_INVALIDDATA;
235 code = bytestream2_get_byte(gbc);
236 if (code & 0x80 ) { /* run */
237 pix = bytestream2_get_byte(gbc);
238 for (j = 0; j < 257 - code; j++) {
242 if (pos >= offset && step > 1) {
249 for (j = 0; j < code + 1; j++) {
250 pix = bytestream2_get_byte(gbc);
254 if (pos >= offset && step > 1) {
262 outdata += p->linesize[0];
267 static int check_header(const char *buf, int buf_size)
269 unsigned w, h, v0, v1;
276 v0 = AV_RB16(buf+10);
277 v1 = AV_RB16(buf+12);
284 if (v0 == 0x0011 && v1 == 0x02FF)
290 static int decode_frame(AVCodecContext *avctx,
291 void *data, int *got_frame,
294 AVFrame * const p = data;
300 bytestream2_init(&gbc, avpkt->data, avpkt->size);
301 if ( bytestream2_get_bytes_left(&gbc) >= 552
302 && check_header(gbc.buffer + 512, bytestream2_get_bytes_left(&gbc) - 512)
304 bytestream2_skip(&gbc, 512);
306 ver = check_header(gbc.buffer, bytestream2_get_bytes_left(&gbc));
308 /* smallest PICT header */
309 if (bytestream2_get_bytes_left(&gbc) < 40) {
310 av_log(avctx, AV_LOG_ERROR, "Frame is too small %d\n",
311 bytestream2_get_bytes_left(&gbc));
312 return AVERROR_INVALIDDATA;
315 bytestream2_skip(&gbc, 6);
316 h = bytestream2_get_be16(&gbc);
317 w = bytestream2_get_be16(&gbc);
319 ret = ff_set_dimensions(avctx, w, h);
323 /* version 1 is identified by 0x1101
324 * it uses byte-aligned opcodes rather than word-aligned */
326 avpriv_request_sample(avctx, "QuickDraw version 1");
327 return AVERROR_PATCHWELCOME;
328 } else if (ver != 2) {
329 avpriv_request_sample(avctx, "QuickDraw version unknown (%X)", bytestream2_get_be32(&gbc));
330 return AVERROR_PATCHWELCOME;
333 bytestream2_skip(&gbc, 4+26);
335 while (bytestream2_get_bytes_left(&gbc) >= 4) {
337 int rowbytes, pack_type;
338 int opcode = bytestream2_get_be16(&gbc);
342 bytestream2_skip(&gbc, 10);
346 av_log(avctx, AV_LOG_DEBUG, "Parsing Packbit opcode\n");
348 bytestream2_skip(&gbc, 30);
349 bppcnt = bytestream2_get_be16(&gbc); /* cmpCount */
350 bpp = bytestream2_get_be16(&gbc); /* cmpSize */
352 av_log(avctx, AV_LOG_DEBUG, "bppcount %d bpp %d\n", bppcnt, bpp);
353 if (bppcnt == 1 && bpp == 8) {
354 avctx->pix_fmt = AV_PIX_FMT_PAL8;
355 } else if (bppcnt == 1 && (bpp == 4 || bpp == 2)) {
356 avctx->pix_fmt = AV_PIX_FMT_PAL8;
357 } else if (bppcnt == 3 && bpp == 5) {
358 avctx->pix_fmt = AV_PIX_FMT_RGB555;
360 av_log(avctx, AV_LOG_ERROR,
361 "Invalid pixel format (bppcnt %d bpp %d) in Packbit\n",
363 return AVERROR_INVALIDDATA;
366 /* jump to palette */
367 bytestream2_skip(&gbc, 18);
368 colors = bytestream2_get_be16(&gbc);
370 if (colors < 0 || colors > 256) {
371 av_log(avctx, AV_LOG_ERROR,
372 "Error color count - %i(0x%X)\n", colors, colors);
373 return AVERROR_INVALIDDATA;
375 if (bytestream2_get_bytes_left(&gbc) < (colors + 1) * 8) {
376 av_log(avctx, AV_LOG_ERROR, "Palette is too small %d\n",
377 bytestream2_get_bytes_left(&gbc));
378 return AVERROR_INVALIDDATA;
380 if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
383 ret = parse_palette(avctx, &gbc, (uint32_t *)p->data[1], colors);
386 p->palette_has_changed = 1;
388 /* jump to image data */
389 bytestream2_skip(&gbc, 18);
391 if (opcode == PACKBITSRGN) {
392 bytestream2_skip(&gbc, 2 + 8); /* size + rect */
393 avpriv_report_missing_feature(avctx, "Packbit mask region");
396 if (avctx->pix_fmt == AV_PIX_FMT_RGB555)
397 ret = decode_rle16(avctx, p, &gbc);
399 ret = decode_rle_bpp2(avctx, p, &gbc);
401 ret = decode_rle_bpp4(avctx, p, &gbc);
403 ret = decode_rle(avctx, p, &gbc, bppcnt);
410 av_log(avctx, AV_LOG_DEBUG, "Parsing Directbit opcode\n");
412 bytestream2_skip(&gbc, 4);
413 rowbytes = bytestream2_get_be16(&gbc) & 0x3FFF;
414 if (rowbytes <= 250) {
415 avpriv_report_missing_feature(avctx, "Short rowbytes");
416 return AVERROR_PATCHWELCOME;
419 bytestream2_skip(&gbc, 4);
420 h = bytestream2_get_be16(&gbc);
421 w = bytestream2_get_be16(&gbc);
422 bytestream2_skip(&gbc, 2);
424 ret = ff_set_dimensions(avctx, w, h);
428 pack_type = bytestream2_get_be16(&gbc);
430 bytestream2_skip(&gbc, 16);
431 bppcnt = bytestream2_get_be16(&gbc); /* cmpCount */
432 bpp = bytestream2_get_be16(&gbc); /* cmpSize */
434 av_log(avctx, AV_LOG_DEBUG, "bppcount %d bpp %d\n", bppcnt, bpp);
435 if (bppcnt == 3 && bpp == 8) {
436 avctx->pix_fmt = AV_PIX_FMT_RGB24;
437 } else if (bppcnt == 3 && bpp == 5) {
438 avctx->pix_fmt = AV_PIX_FMT_RGB555;
439 } else if (bppcnt == 4 && bpp == 8) {
440 avctx->pix_fmt = AV_PIX_FMT_ARGB;
442 av_log(avctx, AV_LOG_ERROR,
443 "Invalid pixel format (bppcnt %d bpp %d) in Directbit\n",
445 return AVERROR_INVALIDDATA;
448 /* set packing when default is selected */
452 if (pack_type != 3 && pack_type != 4) {
453 avpriv_request_sample(avctx, "Pack type %d", pack_type);
454 return AVERROR_PATCHWELCOME;
456 if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
460 bytestream2_skip(&gbc, 30);
462 if (opcode == DIRECTBITSRGN) {
463 bytestream2_skip(&gbc, 2 + 8); /* size + rect */
464 avpriv_report_missing_feature(avctx, "DirectBit mask region");
467 if (avctx->pix_fmt == AV_PIX_FMT_RGB555)
468 ret = decode_rle16(avctx, p, &gbc);
470 ret = decode_rle(avctx, p, &gbc, bppcnt);
476 bytestream2_get_be16(&gbc);
477 bytestream2_skip(&gbc, bytestream2_get_be16(&gbc));
480 av_log(avctx, AV_LOG_TRACE, "Unknown 0x%04X opcode\n", opcode);
483 /* exit the loop when a known pixel block has been found */
487 /* re-align to a word */
488 bytestream2_skip(&gbc, bytestream2_get_bytes_left(&gbc) % 2);
490 eop = bytestream2_get_be16(&gbc);
491 trail = bytestream2_get_bytes_left(&gbc);
493 av_log(avctx, AV_LOG_WARNING,
494 "Missing end of picture opcode (found 0x%04X)\n", eop);
496 av_log(avctx, AV_LOG_WARNING, "Got %d trailing bytes\n", trail);
502 p->pict_type = AV_PICTURE_TYPE_I;
507 av_log(avctx, AV_LOG_ERROR, "Frame contained no usable data\n");
509 return AVERROR_INVALIDDATA;
513 AVCodec ff_qdraw_decoder = {
515 .long_name = NULL_IF_CONFIG_SMALL("Apple QuickDraw"),
516 .type = AVMEDIA_TYPE_VIDEO,
517 .id = AV_CODEC_ID_QDRAW,
518 .decode = decode_frame,
519 .capabilities = AV_CODEC_CAP_DR1,