FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/qtrle.c
Date: 2025-10-12 01:43:37
Exec Total Coverage
Lines: 282 310 91.0%
Functions: 9 10 90.0%
Branches: 155 221 70.1%
Line Branch Exec Source
1 /*
2 * Quicktime Animation (RLE) Video Decoder
3 * Copyright (C) 2004 The FFmpeg project
4 *
5 * This file is part of FFmpeg.
6 *
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.
11 *
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.
16 *
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
20 */
21
22 /**
23 * @file
24 * QT RLE Video Decoder by Mike Melanson (melanson@pcisys.net)
25 * For more information about the QT RLE format, visit:
26 * http://www.pcisys.net/~melanson/codecs/
27 *
28 * The QT RLE decoder has seven modes of operation:
29 * 1, 2, 4, 8, 16, 24, and 32 bits per pixel. For modes 1, 2, 4, and 8
30 * the decoder outputs PAL8 colorspace data. 16-bit data yields RGB555
31 * data. 24-bit data is RGB24 and 32-bit data is RGB32.
32 */
33
34 #include <string.h>
35
36 #include "avcodec.h"
37 #include "decode.h"
38 #include "bytestream.h"
39 #include "codec_internal.h"
40
41 #include "libavutil/attributes.h"
42
43 typedef struct QtrleContext {
44 AVCodecContext *avctx;
45 AVFrame *frame;
46
47 GetByteContext g;
48 uint32_t pal[256];
49 } QtrleContext;
50
51 #define CHECK_PIXEL_PTR(n) \
52 if ((pixel_ptr + n > pixel_limit) || (pixel_ptr + n < 0)) { \
53 av_log (s->avctx, AV_LOG_ERROR, "Problem: pixel_ptr = %d, pixel_limit = %d\n",\
54 pixel_ptr + n, pixel_limit); \
55 return; \
56 } \
57
58 38 static void qtrle_decode_1bpp(QtrleContext *s, int row_ptr, int lines_to_change)
59 {
60 int rle_code;
61 int pixel_ptr;
62 38 int row_inc = s->frame->linesize[0];
63 uint8_t pi0, pi1; /* 2 8-pixel values */
64 38 uint8_t *rgb = s->frame->data[0];
65 38 int pixel_limit = s->frame->linesize[0] * s->avctx->height;
66 int skip;
67 /* skip & 0x80 appears to mean 'start a new line', which can be interpreted
68 * as 'go to next line' during the decoding of a frame but is 'go to first
69 * line' at the beginning. Since we always interpret it as 'go to next line'
70 * in the decoding loop (which makes code simpler/faster), the first line
71 * would not be counted, so we count one more.
72 * See: https://trac.ffmpeg.org/ticket/226
73 * In the following decoding loop, row_ptr will be the position of the
74 * current row. */
75
76 38 row_ptr -= row_inc;
77 38 pixel_ptr = row_ptr;
78 38 lines_to_change++;
79
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 13034 while (lines_to_change) {
80 13034 skip = bytestream2_get_byte(&s->g);
81 13034 rle_code = (int8_t)bytestream2_get_byte(&s->g);
82
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 13034 if (rle_code == 0)
83 38 break;
84
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 12996 if(skip & 0x80) {
85 9120 lines_to_change--;
86 9120 row_ptr += row_inc;
87 9120 pixel_ptr = row_ptr + 2 * 8 * (skip & 0x7f);
88 } else
89 3876 pixel_ptr += 2 * 8 * skip;
90
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 12996 CHECK_PIXEL_PTR(0); /* make sure pixel_ptr is positive */
91
92
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 12996 if(rle_code == -1)
93 ✗ continue;
94
95
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 12996 if (rle_code < 0) {
96 /* decode the run length code */
97 1825 rle_code = -rle_code;
98 /* get the next 2 bytes from the stream, treat them as groups
99 * of 8 pixels, and output them rle_code times */
100
101 1825 pi0 = bytestream2_get_byte(&s->g);
102 1825 pi1 = bytestream2_get_byte(&s->g);
103
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 1825 CHECK_PIXEL_PTR(rle_code * 2 * 8);
104
105
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 7072 while (rle_code--) {
106 5247 rgb[pixel_ptr++] = (pi0 >> 7) & 0x01;
107 5247 rgb[pixel_ptr++] = (pi0 >> 6) & 0x01;
108 5247 rgb[pixel_ptr++] = (pi0 >> 5) & 0x01;
109 5247 rgb[pixel_ptr++] = (pi0 >> 4) & 0x01;
110 5247 rgb[pixel_ptr++] = (pi0 >> 3) & 0x01;
111 5247 rgb[pixel_ptr++] = (pi0 >> 2) & 0x01;
112 5247 rgb[pixel_ptr++] = (pi0 >> 1) & 0x01;
113 5247 rgb[pixel_ptr++] = pi0 & 0x01;
114 5247 rgb[pixel_ptr++] = (pi1 >> 7) & 0x01;
115 5247 rgb[pixel_ptr++] = (pi1 >> 6) & 0x01;
116 5247 rgb[pixel_ptr++] = (pi1 >> 5) & 0x01;
117 5247 rgb[pixel_ptr++] = (pi1 >> 4) & 0x01;
118 5247 rgb[pixel_ptr++] = (pi1 >> 3) & 0x01;
119 5247 rgb[pixel_ptr++] = (pi1 >> 2) & 0x01;
120 5247 rgb[pixel_ptr++] = (pi1 >> 1) & 0x01;
121 5247 rgb[pixel_ptr++] = pi1 & 0x01;
122 }
123 } else {
124 /* copy the same pixel directly to output 2 times */
125 11171 rle_code *= 2;
126
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 11171 CHECK_PIXEL_PTR(rle_code * 8);
127
128
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 363961 while (rle_code--) {
129 352790 int x = bytestream2_get_byte(&s->g);
130 352790 rgb[pixel_ptr++] = (x >> 7) & 0x01;
131 352790 rgb[pixel_ptr++] = (x >> 6) & 0x01;
132 352790 rgb[pixel_ptr++] = (x >> 5) & 0x01;
133 352790 rgb[pixel_ptr++] = (x >> 4) & 0x01;
134 352790 rgb[pixel_ptr++] = (x >> 3) & 0x01;
135 352790 rgb[pixel_ptr++] = (x >> 2) & 0x01;
136 352790 rgb[pixel_ptr++] = (x >> 1) & 0x01;
137 352790 rgb[pixel_ptr++] = x & 0x01;
138 }
139 }
140 }
141 }
142
143 114 static inline void qtrle_decode_2n4bpp(QtrleContext *s, int row_ptr,
144 int lines_to_change, int bpp)
145 {
146 int rle_code, i;
147 int pixel_ptr;
148 114 int row_inc = s->frame->linesize[0];
149 uint8_t pi[16]; /* 16 palette indices */
150 114 uint8_t *rgb = s->frame->data[0];
151 114 int pixel_limit = s->frame->linesize[0] * s->avctx->height;
152
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 114 int num_pixels = (bpp == 4) ? 8 : 16;
153
154
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 27474 while (lines_to_change--) {
155 27360 pixel_ptr = row_ptr + (num_pixels * (bytestream2_get_byte(&s->g) - 1));
156
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 27360 CHECK_PIXEL_PTR(0);
157
158
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 172476 while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
159
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 145116 if (bytestream2_get_bytes_left(&s->g) < 1)
160 ✗ return;
161
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 145116 if (rle_code == 0) {
162 /* there's another skip code in the stream */
163 32727 pixel_ptr += (num_pixels * (bytestream2_get_byte(&s->g) - 1));
164
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 32727 CHECK_PIXEL_PTR(0); /* make sure pixel_ptr is positive */
165
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 112389 } else if (rle_code < 0) {
166 /* decode the run length code */
167 30399 rle_code = -rle_code;
168 /* get the next 4 bytes from the stream, treat them as palette
169 * indexes, and output them rle_code times */
170
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 292911 for (i = num_pixels-1; i >= 0; i--) {
171 262512 pi[num_pixels-1-i] = (bytestream2_peek_byte(&s->g) >> ((i*bpp) & 0x07)) & ((1<<bpp)-1);
172 262512 bytestream2_skip(&s->g, ((i & ((num_pixels>>2)-1)) == 0));
173 }
174
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 30399 CHECK_PIXEL_PTR(rle_code * num_pixels);
175
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 131895 while (rle_code--) {
176 101496 memcpy(&rgb[pixel_ptr], &pi, num_pixels);
177 101496 pixel_ptr += num_pixels;
178 }
179 } else {
180 /* copy the same pixel directly to output 4 times */
181 81990 rle_code *= 4;
182
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 81990 CHECK_PIXEL_PTR(rle_code*(num_pixels>>2));
183
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 2966410 while (rle_code--) {
184
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 2884420 if(bpp == 4) {
185 2213528 int x = bytestream2_get_byte(&s->g);
186 2213528 rgb[pixel_ptr++] = (x >> 4) & 0x0f;
187 2213528 rgb[pixel_ptr++] = x & 0x0f;
188 } else {
189 670892 int x = bytestream2_get_byte(&s->g);
190 670892 rgb[pixel_ptr++] = (x >> 6) & 0x03;
191 670892 rgb[pixel_ptr++] = (x >> 4) & 0x03;
192 670892 rgb[pixel_ptr++] = (x >> 2) & 0x03;
193 670892 rgb[pixel_ptr++] = x & 0x03;
194 }
195 }
196 }
197 }
198 27360 row_ptr += row_inc;
199 }
200 }
201
202 208 static void qtrle_decode_8bpp(QtrleContext *s, int row_ptr, int lines_to_change)
203 {
204 int rle_code;
205 int pixel_ptr;
206 208 int row_inc = s->frame->linesize[0];
207 uint8_t pi1, pi2, pi3, pi4; /* 4 palette indexes */
208 208 uint8_t *rgb = s->frame->data[0];
209 208 int pixel_limit = s->frame->linesize[0] * s->avctx->height;
210
211
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 48519 while (lines_to_change--) {
212 48311 pixel_ptr = row_ptr + (4 * (bytestream2_get_byte(&s->g) - 1));
213
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 48311 CHECK_PIXEL_PTR(0);
214
215
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 199338 while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
216
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 151027 if (bytestream2_get_bytes_left(&s->g) < 1)
217 ✗ return;
218
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 151027 if (rle_code == 0) {
219 /* there's another skip code in the stream */
220 39089 pixel_ptr += (4 * (bytestream2_get_byte(&s->g) - 1));
221
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 39089 CHECK_PIXEL_PTR(0); /* make sure pixel_ptr is positive */
222
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 111938 } else if (rle_code < 0) {
223 /* decode the run length code */
224 18173 rle_code = -rle_code;
225 /* get the next 4 bytes from the stream, treat them as palette
226 * indexes, and output them rle_code times */
227 18173 pi1 = bytestream2_get_byte(&s->g);
228 18173 pi2 = bytestream2_get_byte(&s->g);
229 18173 pi3 = bytestream2_get_byte(&s->g);
230 18173 pi4 = bytestream2_get_byte(&s->g);
231
232
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 18173 CHECK_PIXEL_PTR(rle_code * 4);
233
234
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 119754 while (rle_code--) {
235 101581 rgb[pixel_ptr++] = pi1;
236 101581 rgb[pixel_ptr++] = pi2;
237 101581 rgb[pixel_ptr++] = pi3;
238 101581 rgb[pixel_ptr++] = pi4;
239 }
240 } else {
241 /* copy the same pixel directly to output 4 times */
242 93765 rle_code *= 4;
243
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 93765 CHECK_PIXEL_PTR(rle_code);
244
245 93765 bytestream2_get_buffer(&s->g, &rgb[pixel_ptr], rle_code);
246 93765 pixel_ptr += rle_code;
247 }
248 }
249 48311 row_ptr += row_inc;
250 }
251 }
252
253 83 static void qtrle_decode_16bpp(QtrleContext *s, int row_ptr, int lines_to_change)
254 {
255 int rle_code;
256 int pixel_ptr;
257 83 int row_inc = s->frame->linesize[0];
258 uint16_t rgb16;
259 83 uint8_t *rgb = s->frame->data[0];
260 83 int pixel_limit = s->frame->linesize[0] * s->avctx->height;
261
262
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 10043 while (lines_to_change--) {
263 9960 pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 2;
264
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 9960 CHECK_PIXEL_PTR(0);
265
266
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 278662 while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
267
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 268702 if (bytestream2_get_bytes_left(&s->g) < 1)
268 ✗ return;
269
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 268702 if (rle_code == 0) {
270 /* there's another skip code in the stream */
271 ✗ pixel_ptr += (bytestream2_get_byte(&s->g) - 1) * 2;
272 ✗ CHECK_PIXEL_PTR(0); /* make sure pixel_ptr is positive */
273
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 268702 } else if (rle_code < 0) {
274 /* decode the run length code */
275 234583 rle_code = -rle_code;
276 234583 rgb16 = bytestream2_get_be16(&s->g);
277
278
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 234583 CHECK_PIXEL_PTR(rle_code * 2);
279
280
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 1764013 while (rle_code--) {
281 1529430 *(uint16_t *)(&rgb[pixel_ptr]) = rgb16;
282 1529430 pixel_ptr += 2;
283 }
284 } else {
285
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 34119 CHECK_PIXEL_PTR(rle_code * 2);
286
287 /* copy pixels directly to output */
288
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 98289 while (rle_code--) {
289 64170 rgb16 = bytestream2_get_be16(&s->g);
290 64170 *(uint16_t *)(&rgb[pixel_ptr]) = rgb16;
291 64170 pixel_ptr += 2;
292 }
293 }
294 }
295 9960 row_ptr += row_inc;
296 }
297 }
298
299 247 static void qtrle_decode_24bpp(QtrleContext *s, int row_ptr, int lines_to_change)
300 {
301 int rle_code, rle_code_half;
302 int pixel_ptr;
303 247 int row_inc = s->frame->linesize[0];
304 uint8_t b;
305 uint16_t rg;
306 247 uint8_t *rgb = s->frame->data[0];
307 247 int pixel_limit = s->frame->linesize[0] * s->avctx->height;
308
309
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 51055 while (lines_to_change--) {
310 50808 pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 3;
311
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 50808 CHECK_PIXEL_PTR(0);
312
313
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 1605496 while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
314
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 1554688 if (bytestream2_get_bytes_left(&s->g) < 1)
315 ✗ return;
316
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 1554688 if (rle_code == 0) {
317 /* there's another skip code in the stream */
318 108587 pixel_ptr += (bytestream2_get_byte(&s->g) - 1) * 3;
319
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 108587 CHECK_PIXEL_PTR(0); /* make sure pixel_ptr is positive */
320
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 1446101 } else if (rle_code < 0) {
321 /* decode the run length code */
322 765480 rle_code = -rle_code;
323 765480 rg = bytestream2_get_ne16(&s->g);
324 765480 b = bytestream2_get_byte(&s->g);
325
326
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 765480 CHECK_PIXEL_PTR(rle_code * 3);
327
328
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 3140635 while (rle_code--) {
329 2375155 AV_WN16(rgb + pixel_ptr, rg);
330 2375155 rgb[pixel_ptr + 2] = b;
331 2375155 pixel_ptr += 3;
332 }
333 } else {
334
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 680621 CHECK_PIXEL_PTR(rle_code * 3);
335
336 680621 rle_code_half = rle_code / 2;
337
338
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 7317655 while (rle_code_half--) { /* copy 2 raw rgb value at the same time */
339 6637034 AV_WN32(rgb + pixel_ptr, bytestream2_get_ne32(&s->g)); /* rgbr */
340 6637034 AV_WN16(rgb + pixel_ptr + 4, bytestream2_get_ne16(&s->g)); /* rgbr */
341 6637034 pixel_ptr += 6;
342 }
343
344
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 680621 if (rle_code % 2 != 0){ /* not even raw value */
345 228307 AV_WN16(rgb + pixel_ptr, bytestream2_get_ne16(&s->g));
346 228307 rgb[pixel_ptr + 2] = bytestream2_get_byte(&s->g);
347 228307 pixel_ptr += 3;
348 }
349 }
350 }
351 50808 row_ptr += row_inc;
352 }
353 }
354
355 26 static void qtrle_decode_32bpp(QtrleContext *s, int row_ptr, int lines_to_change)
356 {
357 int rle_code, rle_code_half;
358 int pixel_ptr;
359 26 int row_inc = s->frame->linesize[0];
360 unsigned int argb;
361 26 uint8_t *rgb = s->frame->data[0];
362 26 int pixel_limit = s->frame->linesize[0] * s->avctx->height;
363
364
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 12506 while (lines_to_change--) {
365 12480 pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 4;
366
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 12480 CHECK_PIXEL_PTR(0);
367
368
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 1205972 while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
369
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 1193492 if (bytestream2_get_bytes_left(&s->g) < 1)
370 ✗ return;
371
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 1193492 if (rle_code == 0) {
372 /* there's another skip code in the stream */
373 244756 pixel_ptr += (bytestream2_get_byte(&s->g) - 1) * 4;
374
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 244756 CHECK_PIXEL_PTR(0); /* make sure pixel_ptr is positive */
375
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 948736 } else if (rle_code < 0) {
376 /* decode the run length code */
377 565158 rle_code = -rle_code;
378 565158 argb = bytestream2_get_ne32(&s->g);
379
380
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 565158 CHECK_PIXEL_PTR(rle_code * 4);
381
382
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 2768198 while (rle_code--) {
383 2203040 AV_WN32A(rgb + pixel_ptr, argb);
384 2203040 pixel_ptr += 4;
385 }
386 } else {
387
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 383578 CHECK_PIXEL_PTR(rle_code * 4);
388
389 /* copy pixels directly to output */
390 383578 rle_code_half = rle_code / 2;
391
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 871158 while (rle_code_half--) { /* copy 2 argb raw value at the same time */
392 487580 AV_WN64(rgb + pixel_ptr, bytestream2_get_ne64(&s->g));
393 487580 pixel_ptr += 8;
394 }
395
396
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 383578 if (rle_code % 2 != 0){ /* not even raw value */
397 256768 AV_WN32A(rgb + pixel_ptr, bytestream2_get_ne32(&s->g));
398 256768 pixel_ptr += 4;
399 }
400 }
401 }
402 12480 row_ptr += row_inc;
403 }
404 }
405
406 38 static av_cold int qtrle_decode_init(AVCodecContext *avctx)
407 {
408 38 QtrleContext *s = avctx->priv_data;
409
410 38 s->avctx = avctx;
411
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 38 switch (avctx->bits_per_coded_sample) {
412 18 case 1:
413 case 2:
414 case 4:
415 case 8:
416 case 33:
417 case 34:
418 case 36:
419 case 40:
420 18 avctx->pix_fmt = AV_PIX_FMT_PAL8;
421 18 break;
422
423 2 case 16:
424 2 avctx->pix_fmt = AV_PIX_FMT_RGB555;
425 2 break;
426
427 16 case 24:
428 16 avctx->pix_fmt = AV_PIX_FMT_RGB24;
429 16 break;
430
431 2 case 32:
432 2 avctx->pix_fmt = AV_PIX_FMT_ARGB;
433 2 break;
434
435 ✗ default:
436 ✗ av_log (avctx, AV_LOG_ERROR, "Unsupported colorspace: %d bits/sample?\n",
437 avctx->bits_per_coded_sample);
438 ✗ return AVERROR_INVALIDDATA;
439 }
440
441 38 s->frame = av_frame_alloc();
442
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 38 if (!s->frame)
443 ✗ return AVERROR(ENOMEM);
444
445 38 return 0;
446 }
447
448 825 static int qtrle_decode_frame(AVCodecContext *avctx, AVFrame *rframe,
449 int *got_frame, AVPacket *avpkt)
450 {
451 825 QtrleContext *s = avctx->priv_data;
452 int header, start_line;
453 int height, row_ptr;
454 825 int has_palette = 0;
455 825 int duplicate = 0;
456 int ret, size;
457
458 825 bytestream2_init(&s->g, avpkt->data, avpkt->size);
459
460 /* check if this frame is even supposed to change */
461
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 825 if (avpkt->size < 8) {
462 109 duplicate = 1;
463 109 goto done;
464 }
465
466 /* start after the chunk size */
467 716 size = bytestream2_get_be32(&s->g) & 0x3FFFFFFF;
468
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 716 if (size - avpkt->size > size * (int64_t)avctx->discard_damaged_percentage / 100)
469 ✗ return AVERROR_INVALIDDATA;
470
471
472 /* fetch the header */
473 716 header = bytestream2_get_be16(&s->g);
474
475 /* if a header is present, fetch additional decoding parameters */
476
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 716 if (header & 0x0008) {
477
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 366 if (avpkt->size < 14) {
478 ✗ duplicate = 1;
479 ✗ goto done;
480 }
481 366 start_line = bytestream2_get_be16(&s->g);
482 366 bytestream2_skip(&s->g, 2);
483 366 height = bytestream2_get_be16(&s->g);
484 366 bytestream2_skip(&s->g, 2);
485
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 366 if (height > s->avctx->height - start_line) {
486 ✗ duplicate = 1;
487 ✗ goto done;
488 }
489 } else {
490 350 start_line = 0;
491 350 height = s->avctx->height;
492 }
493
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 716 if ((ret = ff_reget_buffer(avctx, s->frame, 0)) < 0)
494 ✗ return ret;
495
496 716 row_ptr = s->frame->linesize[0] * start_line;
497
498
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 716 switch (avctx->bits_per_coded_sample) {
499 38 case 1:
500 case 33:
501 38 qtrle_decode_1bpp(s, row_ptr, height);
502 38 has_palette = 1;
503 38 break;
504
505 38 case 2:
506 case 34:
507 38 qtrle_decode_2n4bpp(s, row_ptr, height, 2);
508 38 has_palette = 1;
509 38 break;
510
511 76 case 4:
512 case 36:
513 76 qtrle_decode_2n4bpp(s, row_ptr, height, 4);
514 76 has_palette = 1;
515 76 break;
516
517 208 case 8:
518 case 40:
519 208 qtrle_decode_8bpp(s, row_ptr, height);
520 208 has_palette = 1;
521 208 break;
522
523 83 case 16:
524 83 qtrle_decode_16bpp(s, row_ptr, height);
525 83 break;
526
527 247 case 24:
528 247 qtrle_decode_24bpp(s, row_ptr, height);
529 247 break;
530
531 26 case 32:
532 26 qtrle_decode_32bpp(s, row_ptr, height);
533 26 break;
534
535 ✗ default:
536 ✗ av_log (s->avctx, AV_LOG_ERROR, "Unsupported colorspace: %d bits/sample?\n",
537 avctx->bits_per_coded_sample);
538 ✗ break;
539 }
540
541
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 716 if(has_palette) {
542 360 ff_copy_palette(s->pal, avpkt, avctx);
543 /* make the palette available on the way out */
544 360 memcpy(s->frame->data[1], s->pal, AVPALETTE_SIZE);
545 }
546
547 356 done:
548
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 825 if (!s->frame->data[0])
549 ✗ return AVERROR_INVALIDDATA;
550
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 825 if (duplicate) {
551 // ff_reget_buffer() isn't needed when frames don't change, so just update
552 // frame props.
553 109 ret = ff_decode_frame_props(avctx, s->frame);
554
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 109 if (ret < 0)
555 ✗ return ret;
556 }
557
558
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 825 if ((ret = av_frame_ref(rframe, s->frame)) < 0)
559 ✗ return ret;
560 825 *got_frame = 1;
561
562 /* always report that the buffer was completely consumed */
563 825 return avpkt->size;
564 }
565
566 ✗ static av_cold void qtrle_decode_flush(AVCodecContext *avctx)
567 {
568 ✗ QtrleContext *s = avctx->priv_data;
569
570 ✗ av_frame_unref(s->frame);
571 ✗ }
572
573 38 static av_cold int qtrle_decode_end(AVCodecContext *avctx)
574 {
575 38 QtrleContext *s = avctx->priv_data;
576
577 38 av_frame_free(&s->frame);
578
579 38 return 0;
580 }
581
582 const FFCodec ff_qtrle_decoder = {
583 .p.name = "qtrle",
584 CODEC_LONG_NAME("QuickTime Animation (RLE) video"),
585 .p.type = AVMEDIA_TYPE_VIDEO,
586 .p.id = AV_CODEC_ID_QTRLE,
587 .priv_data_size = sizeof(QtrleContext),
588 .init = qtrle_decode_init,
589 .close = qtrle_decode_end,
590 FF_CODEC_DECODE_CB(qtrle_decode_frame),
591 .flush = qtrle_decode_flush,
592 .p.capabilities = AV_CODEC_CAP_DR1,
593 };
594