2 * FLI/FLC Animation Video Decoder
3 * Copyright (C) 2003, 2004 the ffmpeg project
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * Autodesk Animator FLI/FLC Video Decoder
25 * by Mike Melanson (melanson@pcisys.net)
26 * for more information on the .fli/.flc file format and all of its many
28 * http://www.compuphase.com/flic.htm
30 * This decoder outputs PAL8/RGB555/RGB565 and maybe one day RGB24
31 * colorspace data, depending on the FLC. To use this decoder, be
32 * sure that your demuxer sends the FLI file header to the decoder via
33 * the extradata chunk in AVCodecContext. The chunk should be 128 bytes
34 * large. The only exception is for FLI files from the game "Magic Carpet",
35 * in which the header is only 12 bytes.
42 #include "libavutil/intreadwrite.h"
44 #include "bytestream.h"
47 #define FLI_256_COLOR 4
55 #define FLI_DTA_BRUN 25
56 #define FLI_DTA_COPY 26
59 #define FLI_TYPE_CODE (0xAF11)
60 #define FLC_FLX_TYPE_CODE (0xAF12)
61 #define FLC_DTA_TYPE_CODE (0xAF44) /* Marks an "Extended FLC" comes from Dave's Targa Animator (DTA) */
62 #define FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE (0xAF13)
64 #define CHECK_PIXEL_PTR(n) \
65 if (pixel_ptr + n > pixel_limit) { \
66 av_log (s->avctx, AV_LOG_ERROR, "Invalid pixel_ptr = %d > pixel_limit = %d\n", \
67 pixel_ptr + n, pixel_limit); \
68 return AVERROR_INVALIDDATA; \
71 typedef struct FlicDecodeContext {
72 AVCodecContext *avctx;
75 unsigned int palette[256];
77 int fli_type; /* either 0xAF11 or 0xAF12, affects palette resolution */
80 static av_cold int flic_decode_init(AVCodecContext *avctx)
82 FlicDecodeContext *s = avctx->priv_data;
83 unsigned char *fli_header = (unsigned char *)avctx->extradata;
86 if (avctx->extradata_size != 12 &&
87 avctx->extradata_size != 128) {
88 av_log(avctx, AV_LOG_ERROR, "Expected extradata of 12 or 128 bytes\n");
89 return AVERROR_INVALIDDATA;
94 s->fli_type = AV_RL16(&fli_header[4]); /* Might be overridden if a Magic Carpet FLC */
97 if (s->avctx->extradata_size == 12) {
98 /* special case for magic carpet FLIs */
99 s->fli_type = FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE;
102 depth = AV_RL16(&fli_header[12]);
106 depth = 8; /* Some FLC generators set depth to zero, when they mean 8Bpp. Fix up here */
109 if ((s->fli_type == FLC_FLX_TYPE_CODE) && (depth == 16)) {
110 depth = 15; /* Original Autodesk FLX's say the depth is 16Bpp when it is really 15Bpp */
114 case 8 : avctx->pix_fmt = PIX_FMT_PAL8; break;
115 case 15 : avctx->pix_fmt = PIX_FMT_RGB555; break;
116 case 16 : avctx->pix_fmt = PIX_FMT_RGB565; break;
117 case 24 : avctx->pix_fmt = PIX_FMT_BGR24; /* Supposedly BGR, but havent any files to test with */
118 av_log(avctx, AV_LOG_ERROR, "24Bpp FLC/FLX is unsupported due to no test files.\n");
121 av_log(avctx, AV_LOG_ERROR, "Unknown FLC/FLX depth of %d Bpp is unsupported.\n",depth);
125 avcodec_get_frame_defaults(&s->frame);
126 s->frame.data[0] = NULL;
132 static int flic_decode_frame_8BPP(AVCodecContext *avctx,
133 void *data, int *data_size,
134 const uint8_t *buf, int buf_size)
136 FlicDecodeContext *s = avctx->priv_data;
141 unsigned char palette_idx1;
142 unsigned char palette_idx2;
144 unsigned int frame_size;
147 unsigned int chunk_size;
155 unsigned char r, g, b;
158 int compressed_lines;
160 signed short line_packets;
165 unsigned char *pixels;
166 unsigned int pixel_limit;
168 bytestream2_init(&g2, buf, buf_size);
170 s->frame.reference = 3;
171 s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
172 if (avctx->reget_buffer(avctx, &s->frame) < 0) {
173 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
177 pixels = s->frame.data[0];
178 pixel_limit = s->avctx->height * s->frame.linesize[0];
179 if (buf_size < 16 || buf_size > INT_MAX - (3 * 256 + FF_INPUT_BUFFER_PADDING_SIZE))
180 return AVERROR_INVALIDDATA;
181 frame_size = bytestream2_get_le32(&g2);
182 if (frame_size > buf_size)
183 frame_size = buf_size;
184 bytestream2_skip(&g2, 2); /* skip the magic number */
185 num_chunks = bytestream2_get_le16(&g2);
186 bytestream2_skip(&g2, 8); /* skip padding */
190 /* iterate through the chunks */
191 while ((frame_size >= 6) && (num_chunks > 0)) {
192 int stream_ptr_after_chunk;
193 chunk_size = bytestream2_get_le32(&g2);
194 if (chunk_size > frame_size) {
195 av_log(avctx, AV_LOG_WARNING,
196 "Invalid chunk_size = %u > frame_size = %u\n", chunk_size, frame_size);
197 chunk_size = frame_size;
199 stream_ptr_after_chunk = bytestream2_tell(&g2) - 4 + chunk_size;
201 chunk_type = bytestream2_get_le16(&g2);
203 switch (chunk_type) {
206 /* check special case: If this file is from the Magic Carpet
207 * game and uses 6-bit colors even though it reports 256-color
208 * chunks in a 0xAF12-type file (fli_type is set to 0xAF13 during
210 if ((chunk_type == FLI_256_COLOR) && (s->fli_type != FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE))
214 /* set up the palette */
215 color_packets = bytestream2_get_le16(&g2);
217 for (i = 0; i < color_packets; i++) {
218 /* first byte is how many colors to skip */
219 palette_ptr += bytestream2_get_byte(&g2);
221 /* next byte indicates how many entries to change */
222 color_changes = bytestream2_get_byte(&g2);
224 /* if there are 0 color changes, there are actually 256 */
225 if (color_changes == 0)
228 if (bytestream2_tell(&g2) + color_changes * 3 > stream_ptr_after_chunk)
231 for (j = 0; j < color_changes; j++) {
234 /* wrap around, for good measure */
235 if ((unsigned)palette_ptr >= 256)
238 r = bytestream2_get_byte(&g2) << color_shift;
239 g = bytestream2_get_byte(&g2) << color_shift;
240 b = bytestream2_get_byte(&g2) << color_shift;
241 entry = 0xFF << 24 | r << 16 | g << 8 | b;
242 if (color_shift == 2)
243 entry |= entry >> 6 & 0x30303;
244 if (s->palette[palette_ptr] != entry)
246 s->palette[palette_ptr++] = entry;
253 compressed_lines = bytestream2_get_le16(&g2);
254 while (compressed_lines > 0) {
255 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
257 line_packets = bytestream2_get_le16(&g2);
258 if ((line_packets & 0xC000) == 0xC000) {
260 line_packets = -line_packets;
261 y_ptr += line_packets * s->frame.linesize[0];
262 } else if ((line_packets & 0xC000) == 0x4000) {
263 av_log(avctx, AV_LOG_ERROR, "Undefined opcode (%x) in DELTA_FLI\n", line_packets);
264 } else if ((line_packets & 0xC000) == 0x8000) {
265 // "last byte" opcode
266 pixel_ptr= y_ptr + s->frame.linesize[0] - 1;
268 pixels[pixel_ptr] = line_packets & 0xff;
273 pixel_countdown = s->avctx->width;
274 for (i = 0; i < line_packets; i++) {
275 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
277 /* account for the skip bytes */
278 pixel_skip = bytestream2_get_byte(&g2);
279 pixel_ptr += pixel_skip;
280 pixel_countdown -= pixel_skip;
281 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
283 byte_run = -byte_run;
284 palette_idx1 = bytestream2_get_byte(&g2);
285 palette_idx2 = bytestream2_get_byte(&g2);
286 CHECK_PIXEL_PTR(byte_run * 2);
287 for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {
288 pixels[pixel_ptr++] = palette_idx1;
289 pixels[pixel_ptr++] = palette_idx2;
292 CHECK_PIXEL_PTR(byte_run * 2);
293 if (bytestream2_tell(&g2) + byte_run * 2 > stream_ptr_after_chunk)
295 for (j = 0; j < byte_run * 2; j++, pixel_countdown--) {
296 pixels[pixel_ptr++] = bytestream2_get_byte(&g2);
301 y_ptr += s->frame.linesize[0];
307 /* line compressed */
308 starting_line = bytestream2_get_le16(&g2);
310 y_ptr += starting_line * s->frame.linesize[0];
312 compressed_lines = bytestream2_get_le16(&g2);
313 while (compressed_lines > 0) {
316 pixel_countdown = s->avctx->width;
317 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
319 line_packets = bytestream2_get_byte(&g2);
320 if (line_packets > 0) {
321 for (i = 0; i < line_packets; i++) {
322 /* account for the skip bytes */
323 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
325 pixel_skip = bytestream2_get_byte(&g2);
326 pixel_ptr += pixel_skip;
327 pixel_countdown -= pixel_skip;
328 byte_run = sign_extend(bytestream2_get_byte(&g2),8);
330 CHECK_PIXEL_PTR(byte_run);
331 if (bytestream2_tell(&g2) + byte_run > stream_ptr_after_chunk)
333 for (j = 0; j < byte_run; j++, pixel_countdown--) {
334 pixels[pixel_ptr++] = bytestream2_get_byte(&g2);
336 } else if (byte_run < 0) {
337 byte_run = -byte_run;
338 palette_idx1 = bytestream2_get_byte(&g2);
339 CHECK_PIXEL_PTR(byte_run);
340 for (j = 0; j < byte_run; j++, pixel_countdown--) {
341 pixels[pixel_ptr++] = palette_idx1;
347 y_ptr += s->frame.linesize[0];
353 /* set the whole frame to color 0 (which is usually black) */
355 s->frame.linesize[0] * s->avctx->height);
359 /* Byte run compression: This chunk type only occurs in the first
360 * FLI frame and it will update the entire frame. */
362 for (lines = 0; lines < s->avctx->height; lines++) {
364 /* disregard the line packets; instead, iterate through all
366 bytestream2_skip(&g2, 1);
367 pixel_countdown = s->avctx->width;
368 while (pixel_countdown > 0) {
369 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
371 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
373 palette_idx1 = bytestream2_get_byte(&g2);
374 CHECK_PIXEL_PTR(byte_run);
375 for (j = 0; j < byte_run; j++) {
376 pixels[pixel_ptr++] = palette_idx1;
378 if (pixel_countdown < 0)
379 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",
380 pixel_countdown, lines);
382 } else { /* copy bytes if byte_run < 0 */
383 byte_run = -byte_run;
384 CHECK_PIXEL_PTR(byte_run);
385 if (bytestream2_tell(&g2) + byte_run > stream_ptr_after_chunk)
387 for (j = 0; j < byte_run; j++) {
388 pixels[pixel_ptr++] = bytestream2_get_byte(&g2);
390 if (pixel_countdown < 0)
391 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",
392 pixel_countdown, lines);
397 y_ptr += s->frame.linesize[0];
402 /* copy the chunk (uncompressed frame) */
403 if (chunk_size - 6 != s->avctx->width * s->avctx->height) {
404 av_log(avctx, AV_LOG_ERROR, "In chunk FLI_COPY : source data (%d bytes) " \
405 "has incorrect size, skipping chunk\n", chunk_size - 6);
406 bytestream2_skip(&g2, chunk_size - 6);
408 for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;
409 y_ptr += s->frame.linesize[0]) {
410 bytestream2_get_buffer(&g2, &pixels[y_ptr],
417 /* some sort of a thumbnail? disregard this chunk... */
421 av_log(avctx, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", chunk_type);
425 if (stream_ptr_after_chunk - bytestream2_tell(&g2) > 0)
426 bytestream2_skip(&g2, stream_ptr_after_chunk - bytestream2_tell(&g2));
428 frame_size -= chunk_size;
432 /* by the end of the chunk, the stream ptr should equal the frame
433 * size (minus 1, possibly); if it doesn't, issue a warning */
434 if ((bytestream2_get_bytes_left(&g2) != 0) &&
435 (bytestream2_get_bytes_left(&g2) != 1))
436 av_log(avctx, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \
437 "and final chunk ptr = %d\n", buf_size,
438 buf_size - bytestream2_get_bytes_left(&g2));
440 /* make the palette available on the way out */
441 memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
442 if (s->new_palette) {
443 s->frame.palette_has_changed = 1;
447 *data_size=sizeof(AVFrame);
448 *(AVFrame*)data = s->frame;
453 static int flic_decode_frame_15_16BPP(AVCodecContext *avctx,
454 void *data, int *data_size,
455 const uint8_t *buf, int buf_size)
457 /* Note, the only difference between the 15Bpp and 16Bpp */
458 /* Format is the pixel format, the packets are processed the same. */
459 FlicDecodeContext *s = avctx->priv_data;
463 unsigned char palette_idx1;
465 unsigned int frame_size;
468 unsigned int chunk_size;
474 int compressed_lines;
475 signed short line_packets;
480 unsigned char *pixels;
482 unsigned int pixel_limit;
484 bytestream2_init(&g2, buf, buf_size);
486 s->frame.reference = 3;
487 s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
488 if (avctx->reget_buffer(avctx, &s->frame) < 0) {
489 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
493 pixels = s->frame.data[0];
494 pixel_limit = s->avctx->height * s->frame.linesize[0];
496 frame_size = bytestream2_get_le32(&g2);
497 bytestream2_skip(&g2, 2); /* skip the magic number */
498 num_chunks = bytestream2_get_le16(&g2);
499 bytestream2_skip(&g2, 8); /* skip padding */
500 if (frame_size > buf_size)
501 frame_size = buf_size;
505 /* iterate through the chunks */
506 while ((frame_size > 0) && (num_chunks > 0)) {
507 int stream_ptr_after_chunk;
508 chunk_size = bytestream2_get_le32(&g2);
509 if (chunk_size > frame_size) {
510 av_log(avctx, AV_LOG_WARNING,
511 "Invalid chunk_size = %u > frame_size = %u\n", chunk_size, frame_size);
512 chunk_size = frame_size;
514 stream_ptr_after_chunk = bytestream2_tell(&g2) - 4 + chunk_size;
516 chunk_type = bytestream2_get_le16(&g2);
519 switch (chunk_type) {
522 /* For some reason, it seems that non-palettized flics do
523 * include one of these chunks in their first frame.
524 * Why I do not know, it seems rather extraneous. */
525 /* av_log(avctx, AV_LOG_ERROR, "Unexpected Palette chunk %d in non-paletised FLC\n",chunk_type);*/
526 bytestream2_skip(&g2, chunk_size - 6);
532 compressed_lines = bytestream2_get_le16(&g2);
533 while (compressed_lines > 0) {
534 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
536 line_packets = bytestream2_get_le16(&g2);
537 if (line_packets < 0) {
538 line_packets = -line_packets;
539 y_ptr += line_packets * s->frame.linesize[0];
544 pixel_countdown = s->avctx->width;
545 for (i = 0; i < line_packets; i++) {
546 /* account for the skip bytes */
547 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
549 pixel_skip = bytestream2_get_byte(&g2);
550 pixel_ptr += (pixel_skip*2); /* Pixel is 2 bytes wide */
551 pixel_countdown -= pixel_skip;
552 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
554 byte_run = -byte_run;
555 pixel = bytestream2_get_le16(&g2);
556 CHECK_PIXEL_PTR(2 * byte_run);
557 for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {
558 *((signed short*)(&pixels[pixel_ptr])) = pixel;
562 if (bytestream2_tell(&g2) + 2*byte_run > stream_ptr_after_chunk)
564 CHECK_PIXEL_PTR(2 * byte_run);
565 for (j = 0; j < byte_run; j++, pixel_countdown--) {
566 *((signed short*)(&pixels[pixel_ptr])) = bytestream2_get_le16(&g2);
572 y_ptr += s->frame.linesize[0];
578 av_log(avctx, AV_LOG_ERROR, "Unexpected FLI_LC chunk in non-paletised FLC\n");
579 bytestream2_skip(&g2, chunk_size - 6);
583 /* set the whole frame to 0x0000 which is black in both 15Bpp and 16Bpp modes. */
584 memset(pixels, 0x0000,
585 s->frame.linesize[0] * s->avctx->height);
590 for (lines = 0; lines < s->avctx->height; lines++) {
592 /* disregard the line packets; instead, iterate through all
594 bytestream2_skip(&g2, 1);
595 pixel_countdown = (s->avctx->width * 2);
597 while (pixel_countdown > 0) {
598 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
600 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
602 palette_idx1 = bytestream2_get_byte(&g2);
603 CHECK_PIXEL_PTR(byte_run);
604 for (j = 0; j < byte_run; j++) {
605 pixels[pixel_ptr++] = palette_idx1;
607 if (pixel_countdown < 0)
608 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) (linea%d)\n",
609 pixel_countdown, lines);
611 } else { /* copy bytes if byte_run < 0 */
612 byte_run = -byte_run;
613 if (bytestream2_tell(&g2) + byte_run > stream_ptr_after_chunk)
615 CHECK_PIXEL_PTR(byte_run);
616 for (j = 0; j < byte_run; j++) {
617 palette_idx1 = bytestream2_get_byte(&g2);
618 pixels[pixel_ptr++] = palette_idx1;
620 if (pixel_countdown < 0)
621 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",
622 pixel_countdown, lines);
627 /* Now FLX is strange, in that it is "byte" as opposed to "pixel" run length compressed.
628 * This does not give us any good oportunity to perform word endian conversion
629 * during decompression. So if it is required (i.e., this is not a LE target, we do
630 * a second pass over the line here, swapping the bytes.
634 pixel_countdown = s->avctx->width;
635 while (pixel_countdown > 0) {
636 *((signed short*)(&pixels[pixel_ptr])) = AV_RL16(&buf[pixel_ptr]);
640 y_ptr += s->frame.linesize[0];
646 for (lines = 0; lines < s->avctx->height; lines++) {
648 /* disregard the line packets; instead, iterate through all
650 bytestream2_skip(&g2, 1);
651 pixel_countdown = s->avctx->width; /* Width is in pixels, not bytes */
653 while (pixel_countdown > 0) {
654 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
656 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
658 pixel = bytestream2_get_le16(&g2);
659 CHECK_PIXEL_PTR(2 * byte_run);
660 for (j = 0; j < byte_run; j++) {
661 *((signed short*)(&pixels[pixel_ptr])) = pixel;
664 if (pixel_countdown < 0)
665 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d)\n",
668 } else { /* copy pixels if byte_run < 0 */
669 byte_run = -byte_run;
670 if (bytestream2_tell(&g2) + 2 * byte_run > stream_ptr_after_chunk)
672 CHECK_PIXEL_PTR(2 * byte_run);
673 for (j = 0; j < byte_run; j++) {
674 *((signed short*)(&pixels[pixel_ptr])) = bytestream2_get_le16(&g2);
677 if (pixel_countdown < 0)
678 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d)\n",
684 y_ptr += s->frame.linesize[0];
690 /* copy the chunk (uncompressed frame) */
691 if (chunk_size - 6 > (unsigned int)(s->avctx->width * s->avctx->height)*2) {
692 av_log(avctx, AV_LOG_ERROR, "In chunk FLI_COPY : source data (%d bytes) " \
693 "bigger than image, skipping chunk\n", chunk_size - 6);
694 bytestream2_skip(&g2, chunk_size - 6);
697 for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;
698 y_ptr += s->frame.linesize[0]) {
700 pixel_countdown = s->avctx->width;
702 while (pixel_countdown > 0) {
703 *((signed short*)(&pixels[y_ptr + pixel_ptr])) = bytestream2_get_le16(&g2);
712 /* some sort of a thumbnail? disregard this chunk... */
713 bytestream2_skip(&g2, chunk_size - 6);
717 av_log(avctx, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", chunk_type);
721 frame_size -= chunk_size;
725 /* by the end of the chunk, the stream ptr should equal the frame
726 * size (minus 1, possibly); if it doesn't, issue a warning */
727 if ((bytestream2_get_bytes_left(&g2) != 0) && (bytestream2_get_bytes_left(&g2) != 1))
728 av_log(avctx, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \
729 "and final chunk ptr = %d\n", buf_size, bytestream2_tell(&g2));
732 *data_size=sizeof(AVFrame);
733 *(AVFrame*)data = s->frame;
738 static int flic_decode_frame_24BPP(AVCodecContext *avctx,
739 void *data, int *data_size,
740 const uint8_t *buf, int buf_size)
742 av_log(avctx, AV_LOG_ERROR, "24Bpp FLC Unsupported due to lack of test files.\n");
746 static int flic_decode_frame(AVCodecContext *avctx,
747 void *data, int *data_size,
750 const uint8_t *buf = avpkt->data;
751 int buf_size = avpkt->size;
752 if (avctx->pix_fmt == PIX_FMT_PAL8) {
753 return flic_decode_frame_8BPP(avctx, data, data_size,
756 else if ((avctx->pix_fmt == PIX_FMT_RGB555) ||
757 (avctx->pix_fmt == PIX_FMT_RGB565)) {
758 return flic_decode_frame_15_16BPP(avctx, data, data_size,
761 else if (avctx->pix_fmt == PIX_FMT_BGR24) {
762 return flic_decode_frame_24BPP(avctx, data, data_size,
766 /* Should not get here, ever as the pix_fmt is processed */
767 /* in flic_decode_init and the above if should deal with */
768 /* the finite set of possibilites allowable by here. */
769 /* But in case we do, just error out. */
770 av_log(avctx, AV_LOG_ERROR, "Unknown FLC format, my science cannot explain how this happened.\n");
775 static av_cold int flic_decode_end(AVCodecContext *avctx)
777 FlicDecodeContext *s = avctx->priv_data;
779 if (s->frame.data[0])
780 avctx->release_buffer(avctx, &s->frame);
785 AVCodec ff_flic_decoder = {
787 .type = AVMEDIA_TYPE_VIDEO,
789 .priv_data_size = sizeof(FlicDecodeContext),
790 .init = flic_decode_init,
791 .close = flic_decode_end,
792 .decode = flic_decode_frame,
793 .capabilities = CODEC_CAP_DR1,
794 .long_name = NULL_IF_CONFIG_SMALL("Autodesk Animator Flic video"),