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 */
96 if (s->avctx->extradata_size == 12) {
97 /* special case for magic carpet FLIs */
98 s->fli_type = FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE;
101 depth = AV_RL16(&fli_header[12]);
105 depth = 8; /* Some FLC generators set depth to zero, when they mean 8Bpp. Fix up here */
108 if ((s->fli_type == FLC_FLX_TYPE_CODE) && (depth == 16)) {
109 depth = 15; /* Original Autodesk FLX's say the depth is 16Bpp when it is really 15Bpp */
113 case 8 : avctx->pix_fmt = PIX_FMT_PAL8; break;
114 case 15 : avctx->pix_fmt = PIX_FMT_RGB555; break;
115 case 16 : avctx->pix_fmt = PIX_FMT_RGB565; break;
116 case 24 : avctx->pix_fmt = PIX_FMT_BGR24; /* Supposedly BGR, but havent any files to test with */
117 av_log(avctx, AV_LOG_ERROR, "24Bpp FLC/FLX is unsupported due to no test files.\n");
120 av_log(avctx, AV_LOG_ERROR, "Unknown FLC/FLX depth of %d Bpp is unsupported.\n",depth);
124 avcodec_get_frame_defaults(&s->frame);
125 s->frame.data[0] = NULL;
131 static int flic_decode_frame_8BPP(AVCodecContext *avctx,
132 void *data, int *data_size,
133 const uint8_t *buf, int buf_size)
135 FlicDecodeContext *s = avctx->priv_data;
140 unsigned char palette_idx1;
141 unsigned char palette_idx2;
143 unsigned int frame_size;
146 unsigned int chunk_size;
154 unsigned char r, g, b;
157 int compressed_lines;
159 signed short line_packets;
164 unsigned char *pixels;
165 unsigned int pixel_limit;
167 bytestream2_init(&g2, buf, buf_size);
169 s->frame.reference = 3;
170 s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
171 if (avctx->reget_buffer(avctx, &s->frame) < 0) {
172 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
176 pixels = s->frame.data[0];
177 pixel_limit = s->avctx->height * s->frame.linesize[0];
178 if (buf_size < 16 || buf_size > INT_MAX - (3 * 256 + FF_INPUT_BUFFER_PADDING_SIZE))
179 return AVERROR_INVALIDDATA;
180 frame_size = bytestream2_get_le32(&g2);
181 if (frame_size > buf_size)
182 frame_size = buf_size;
183 bytestream2_skip(&g2, 2); /* skip the magic number */
184 num_chunks = bytestream2_get_le16(&g2);
185 bytestream2_skip(&g2, 8); /* skip padding */
189 /* iterate through the chunks */
190 while ((frame_size >= 6) && (num_chunks > 0)) {
191 int stream_ptr_after_chunk;
192 chunk_size = bytestream2_get_le32(&g2);
193 if (chunk_size > frame_size) {
194 av_log(avctx, AV_LOG_WARNING,
195 "Invalid chunk_size = %u > frame_size = %u\n", chunk_size, frame_size);
196 chunk_size = frame_size;
198 stream_ptr_after_chunk = bytestream2_tell(&g2) - 4 + chunk_size;
200 chunk_type = bytestream2_get_le16(&g2);
202 switch (chunk_type) {
205 /* check special case: If this file is from the Magic Carpet
206 * game and uses 6-bit colors even though it reports 256-color
207 * chunks in a 0xAF12-type file (fli_type is set to 0xAF13 during
209 if ((chunk_type == FLI_256_COLOR) && (s->fli_type != FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE))
213 /* set up the palette */
214 color_packets = bytestream2_get_le16(&g2);
216 for (i = 0; i < color_packets; i++) {
217 /* first byte is how many colors to skip */
218 palette_ptr += bytestream2_get_byte(&g2);
220 /* next byte indicates how many entries to change */
221 color_changes = bytestream2_get_byte(&g2);
223 /* if there are 0 color changes, there are actually 256 */
224 if (color_changes == 0)
227 if (bytestream2_tell(&g2) + color_changes * 3 > stream_ptr_after_chunk)
230 for (j = 0; j < color_changes; j++) {
233 /* wrap around, for good measure */
234 if ((unsigned)palette_ptr >= 256)
237 r = bytestream2_get_byte(&g2) << color_shift;
238 g = bytestream2_get_byte(&g2) << color_shift;
239 b = bytestream2_get_byte(&g2) << color_shift;
240 entry = 0xFF << 24 | r << 16 | g << 8 | b;
241 if (color_shift == 2)
242 entry |= entry >> 6 & 0x30303;
243 if (s->palette[palette_ptr] != entry)
245 s->palette[palette_ptr++] = entry;
252 compressed_lines = bytestream2_get_le16(&g2);
253 while (compressed_lines > 0) {
254 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
256 line_packets = bytestream2_get_le16(&g2);
257 if ((line_packets & 0xC000) == 0xC000) {
259 line_packets = -line_packets;
260 y_ptr += line_packets * s->frame.linesize[0];
261 } else if ((line_packets & 0xC000) == 0x4000) {
262 av_log(avctx, AV_LOG_ERROR, "Undefined opcode (%x) in DELTA_FLI\n", line_packets);
263 } else if ((line_packets & 0xC000) == 0x8000) {
264 // "last byte" opcode
265 pixel_ptr= y_ptr + s->frame.linesize[0] - 1;
267 pixels[pixel_ptr] = line_packets & 0xff;
272 pixel_countdown = s->avctx->width;
273 for (i = 0; i < line_packets; i++) {
274 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
276 /* account for the skip bytes */
277 pixel_skip = bytestream2_get_byte(&g2);
278 pixel_ptr += pixel_skip;
279 pixel_countdown -= pixel_skip;
280 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
282 byte_run = -byte_run;
283 palette_idx1 = bytestream2_get_byte(&g2);
284 palette_idx2 = bytestream2_get_byte(&g2);
285 CHECK_PIXEL_PTR(byte_run * 2);
286 for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {
287 pixels[pixel_ptr++] = palette_idx1;
288 pixels[pixel_ptr++] = palette_idx2;
291 CHECK_PIXEL_PTR(byte_run * 2);
292 if (bytestream2_tell(&g2) + byte_run * 2 > stream_ptr_after_chunk)
294 for (j = 0; j < byte_run * 2; j++, pixel_countdown--) {
295 pixels[pixel_ptr++] = bytestream2_get_byte(&g2);
300 y_ptr += s->frame.linesize[0];
306 /* line compressed */
307 starting_line = bytestream2_get_le16(&g2);
309 y_ptr += starting_line * s->frame.linesize[0];
311 compressed_lines = bytestream2_get_le16(&g2);
312 while (compressed_lines > 0) {
315 pixel_countdown = s->avctx->width;
316 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
318 line_packets = bytestream2_get_byte(&g2);
319 if (line_packets > 0) {
320 for (i = 0; i < line_packets; i++) {
321 /* account for the skip bytes */
322 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
324 pixel_skip = bytestream2_get_byte(&g2);
325 pixel_ptr += pixel_skip;
326 pixel_countdown -= pixel_skip;
327 byte_run = sign_extend(bytestream2_get_byte(&g2),8);
329 CHECK_PIXEL_PTR(byte_run);
330 if (bytestream2_tell(&g2) + byte_run > stream_ptr_after_chunk)
332 for (j = 0; j < byte_run; j++, pixel_countdown--) {
333 pixels[pixel_ptr++] = bytestream2_get_byte(&g2);
335 } else if (byte_run < 0) {
336 byte_run = -byte_run;
337 palette_idx1 = bytestream2_get_byte(&g2);
338 CHECK_PIXEL_PTR(byte_run);
339 for (j = 0; j < byte_run; j++, pixel_countdown--) {
340 pixels[pixel_ptr++] = palette_idx1;
346 y_ptr += s->frame.linesize[0];
352 /* set the whole frame to color 0 (which is usually black) */
354 s->frame.linesize[0] * s->avctx->height);
358 /* Byte run compression: This chunk type only occurs in the first
359 * FLI frame and it will update the entire frame. */
361 for (lines = 0; lines < s->avctx->height; lines++) {
363 /* disregard the line packets; instead, iterate through all
365 bytestream2_skip(&g2, 1);
366 pixel_countdown = s->avctx->width;
367 while (pixel_countdown > 0) {
368 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
370 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
372 palette_idx1 = bytestream2_get_byte(&g2);
373 CHECK_PIXEL_PTR(byte_run);
374 for (j = 0; j < byte_run; j++) {
375 pixels[pixel_ptr++] = palette_idx1;
377 if (pixel_countdown < 0)
378 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",
379 pixel_countdown, lines);
381 } else { /* copy bytes if byte_run < 0 */
382 byte_run = -byte_run;
383 CHECK_PIXEL_PTR(byte_run);
384 if (bytestream2_tell(&g2) + byte_run > stream_ptr_after_chunk)
386 for (j = 0; j < byte_run; j++) {
387 pixels[pixel_ptr++] = bytestream2_get_byte(&g2);
389 if (pixel_countdown < 0)
390 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",
391 pixel_countdown, lines);
396 y_ptr += s->frame.linesize[0];
401 /* copy the chunk (uncompressed frame) */
402 if (chunk_size - 6 != s->avctx->width * s->avctx->height) {
403 av_log(avctx, AV_LOG_ERROR, "In chunk FLI_COPY : source data (%d bytes) " \
404 "has incorrect size, skipping chunk\n", chunk_size - 6);
405 bytestream2_skip(&g2, chunk_size - 6);
407 for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;
408 y_ptr += s->frame.linesize[0]) {
409 bytestream2_get_buffer(&g2, &pixels[y_ptr],
416 /* some sort of a thumbnail? disregard this chunk... */
420 av_log(avctx, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", chunk_type);
424 if (stream_ptr_after_chunk - bytestream2_tell(&g2) > 0)
425 bytestream2_skip(&g2, stream_ptr_after_chunk - bytestream2_tell(&g2));
427 frame_size -= chunk_size;
431 /* by the end of the chunk, the stream ptr should equal the frame
432 * size (minus 1, possibly); if it doesn't, issue a warning */
433 if ((bytestream2_get_bytes_left(&g2) != 0) &&
434 (bytestream2_get_bytes_left(&g2) != 1))
435 av_log(avctx, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \
436 "and final chunk ptr = %d\n", buf_size,
437 buf_size - bytestream2_get_bytes_left(&g2));
439 /* make the palette available on the way out */
440 memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
441 if (s->new_palette) {
442 s->frame.palette_has_changed = 1;
446 *data_size=sizeof(AVFrame);
447 *(AVFrame*)data = s->frame;
452 static int flic_decode_frame_15_16BPP(AVCodecContext *avctx,
453 void *data, int *data_size,
454 const uint8_t *buf, int buf_size)
456 /* Note, the only difference between the 15Bpp and 16Bpp */
457 /* Format is the pixel format, the packets are processed the same. */
458 FlicDecodeContext *s = avctx->priv_data;
462 unsigned char palette_idx1;
464 unsigned int frame_size;
467 unsigned int chunk_size;
473 int compressed_lines;
474 signed short line_packets;
479 unsigned char *pixels;
481 unsigned int pixel_limit;
483 bytestream2_init(&g2, buf, buf_size);
485 s->frame.reference = 3;
486 s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
487 if (avctx->reget_buffer(avctx, &s->frame) < 0) {
488 av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
492 pixels = s->frame.data[0];
493 pixel_limit = s->avctx->height * s->frame.linesize[0];
495 frame_size = bytestream2_get_le32(&g2);
496 bytestream2_skip(&g2, 2); /* skip the magic number */
497 num_chunks = bytestream2_get_le16(&g2);
498 bytestream2_skip(&g2, 8); /* skip padding */
499 if (frame_size > buf_size)
500 frame_size = buf_size;
504 /* iterate through the chunks */
505 while ((frame_size > 0) && (num_chunks > 0)) {
506 int stream_ptr_after_chunk;
507 chunk_size = bytestream2_get_le32(&g2);
508 if (chunk_size > frame_size) {
509 av_log(avctx, AV_LOG_WARNING,
510 "Invalid chunk_size = %u > frame_size = %u\n", chunk_size, frame_size);
511 chunk_size = frame_size;
513 stream_ptr_after_chunk = bytestream2_tell(&g2) - 4 + chunk_size;
515 chunk_type = bytestream2_get_le16(&g2);
518 switch (chunk_type) {
521 /* For some reason, it seems that non-palettized flics do
522 * include one of these chunks in their first frame.
523 * Why I do not know, it seems rather extraneous. */
524 /* av_log(avctx, AV_LOG_ERROR, "Unexpected Palette chunk %d in non-paletised FLC\n",chunk_type);*/
525 bytestream2_skip(&g2, chunk_size - 6);
531 compressed_lines = bytestream2_get_le16(&g2);
532 while (compressed_lines > 0) {
533 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
535 line_packets = bytestream2_get_le16(&g2);
536 if (line_packets < 0) {
537 line_packets = -line_packets;
538 y_ptr += line_packets * s->frame.linesize[0];
543 pixel_countdown = s->avctx->width;
544 for (i = 0; i < line_packets; i++) {
545 /* account for the skip bytes */
546 if (bytestream2_tell(&g2) + 2 > stream_ptr_after_chunk)
548 pixel_skip = bytestream2_get_byte(&g2);
549 pixel_ptr += (pixel_skip*2); /* Pixel is 2 bytes wide */
550 pixel_countdown -= pixel_skip;
551 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
553 byte_run = -byte_run;
554 pixel = bytestream2_get_le16(&g2);
555 CHECK_PIXEL_PTR(2 * byte_run);
556 for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {
557 *((signed short*)(&pixels[pixel_ptr])) = pixel;
561 if (bytestream2_tell(&g2) + 2*byte_run > stream_ptr_after_chunk)
563 CHECK_PIXEL_PTR(2 * byte_run);
564 for (j = 0; j < byte_run; j++, pixel_countdown--) {
565 *((signed short*)(&pixels[pixel_ptr])) = bytestream2_get_le16(&g2);
571 y_ptr += s->frame.linesize[0];
577 av_log(avctx, AV_LOG_ERROR, "Unexpected FLI_LC chunk in non-paletised FLC\n");
578 bytestream2_skip(&g2, chunk_size - 6);
582 /* set the whole frame to 0x0000 which is black in both 15Bpp and 16Bpp modes. */
583 memset(pixels, 0x0000,
584 s->frame.linesize[0] * s->avctx->height);
589 for (lines = 0; lines < s->avctx->height; lines++) {
591 /* disregard the line packets; instead, iterate through all
593 bytestream2_skip(&g2, 1);
594 pixel_countdown = (s->avctx->width * 2);
596 while (pixel_countdown > 0) {
597 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
599 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
601 palette_idx1 = bytestream2_get_byte(&g2);
602 CHECK_PIXEL_PTR(byte_run);
603 for (j = 0; j < byte_run; j++) {
604 pixels[pixel_ptr++] = palette_idx1;
606 if (pixel_countdown < 0)
607 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) (linea%d)\n",
608 pixel_countdown, lines);
610 } else { /* copy bytes if byte_run < 0 */
611 byte_run = -byte_run;
612 if (bytestream2_tell(&g2) + byte_run > stream_ptr_after_chunk)
614 CHECK_PIXEL_PTR(byte_run);
615 for (j = 0; j < byte_run; j++) {
616 palette_idx1 = bytestream2_get_byte(&g2);
617 pixels[pixel_ptr++] = palette_idx1;
619 if (pixel_countdown < 0)
620 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",
621 pixel_countdown, lines);
626 /* Now FLX is strange, in that it is "byte" as opposed to "pixel" run length compressed.
627 * This does not give us any good oportunity to perform word endian conversion
628 * during decompression. So if it is required (i.e., this is not a LE target, we do
629 * a second pass over the line here, swapping the bytes.
633 pixel_countdown = s->avctx->width;
634 while (pixel_countdown > 0) {
635 *((signed short*)(&pixels[pixel_ptr])) = AV_RL16(&buf[pixel_ptr]);
639 y_ptr += s->frame.linesize[0];
645 for (lines = 0; lines < s->avctx->height; lines++) {
647 /* disregard the line packets; instead, iterate through all
649 bytestream2_skip(&g2, 1);
650 pixel_countdown = s->avctx->width; /* Width is in pixels, not bytes */
652 while (pixel_countdown > 0) {
653 if (bytestream2_tell(&g2) + 1 > stream_ptr_after_chunk)
655 byte_run = sign_extend(bytestream2_get_byte(&g2), 8);
657 pixel = bytestream2_get_le16(&g2);
658 CHECK_PIXEL_PTR(2 * byte_run);
659 for (j = 0; j < byte_run; j++) {
660 *((signed short*)(&pixels[pixel_ptr])) = pixel;
663 if (pixel_countdown < 0)
664 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d)\n",
667 } else { /* copy pixels if byte_run < 0 */
668 byte_run = -byte_run;
669 if (bytestream2_tell(&g2) + 2 * byte_run > stream_ptr_after_chunk)
671 CHECK_PIXEL_PTR(2 * byte_run);
672 for (j = 0; j < byte_run; j++) {
673 *((signed short*)(&pixels[pixel_ptr])) = bytestream2_get_le16(&g2);
676 if (pixel_countdown < 0)
677 av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d)\n",
683 y_ptr += s->frame.linesize[0];
689 /* copy the chunk (uncompressed frame) */
690 if (chunk_size - 6 > (unsigned int)(s->avctx->width * s->avctx->height)*2) {
691 av_log(avctx, AV_LOG_ERROR, "In chunk FLI_COPY : source data (%d bytes) " \
692 "bigger than image, skipping chunk\n", chunk_size - 6);
693 bytestream2_skip(&g2, chunk_size - 6);
696 for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;
697 y_ptr += s->frame.linesize[0]) {
699 pixel_countdown = s->avctx->width;
701 while (pixel_countdown > 0) {
702 *((signed short*)(&pixels[y_ptr + pixel_ptr])) = bytestream2_get_le16(&g2);
711 /* some sort of a thumbnail? disregard this chunk... */
712 bytestream2_skip(&g2, chunk_size - 6);
716 av_log(avctx, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", chunk_type);
720 frame_size -= chunk_size;
724 /* by the end of the chunk, the stream ptr should equal the frame
725 * size (minus 1, possibly); if it doesn't, issue a warning */
726 if ((bytestream2_get_bytes_left(&g2) != 0) && (bytestream2_get_bytes_left(&g2) != 1))
727 av_log(avctx, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \
728 "and final chunk ptr = %d\n", buf_size, bytestream2_tell(&g2));
731 *data_size=sizeof(AVFrame);
732 *(AVFrame*)data = s->frame;
737 static int flic_decode_frame_24BPP(AVCodecContext *avctx,
738 void *data, int *data_size,
739 const uint8_t *buf, int buf_size)
741 av_log(avctx, AV_LOG_ERROR, "24Bpp FLC Unsupported due to lack of test files.\n");
745 static int flic_decode_frame(AVCodecContext *avctx,
746 void *data, int *data_size,
749 const uint8_t *buf = avpkt->data;
750 int buf_size = avpkt->size;
751 if (avctx->pix_fmt == PIX_FMT_PAL8) {
752 return flic_decode_frame_8BPP(avctx, data, data_size,
755 else if ((avctx->pix_fmt == PIX_FMT_RGB555) ||
756 (avctx->pix_fmt == PIX_FMT_RGB565)) {
757 return flic_decode_frame_15_16BPP(avctx, data, data_size,
760 else if (avctx->pix_fmt == PIX_FMT_BGR24) {
761 return flic_decode_frame_24BPP(avctx, data, data_size,
765 /* Should not get here, ever as the pix_fmt is processed */
766 /* in flic_decode_init and the above if should deal with */
767 /* the finite set of possibilites allowable by here. */
768 /* But in case we do, just error out. */
769 av_log(avctx, AV_LOG_ERROR, "Unknown FLC format, my science cannot explain how this happened.\n");
774 static av_cold int flic_decode_end(AVCodecContext *avctx)
776 FlicDecodeContext *s = avctx->priv_data;
778 if (s->frame.data[0])
779 avctx->release_buffer(avctx, &s->frame);
784 AVCodec ff_flic_decoder = {
786 .type = AVMEDIA_TYPE_VIDEO,
788 .priv_data_size = sizeof(FlicDecodeContext),
789 .init = flic_decode_init,
790 .close = flic_decode_end,
791 .decode = flic_decode_frame,
792 .capabilities = CODEC_CAP_DR1,
793 .long_name = NULL_IF_CONFIG_SMALL("Autodesk Animator Flic video"),