FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/rawdec.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 165 269 61.3%
Functions: 3 6 50.0%
Branches: 157 288 54.5%
Line Branch Exec Source
1 /*
2 * Raw Video Decoder
3 * Copyright (c) 2001 Fabrice Bellard
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 * Raw Video Decoder
25 */
26
27 #include "avcodec.h"
28 #include "bswapdsp.h"
29 #include "codec_internal.h"
30 #include "decode.h"
31 #include "get_bits.h"
32 #include "raw.h"
33 #include "libavutil/avassert.h"
34 #include "libavutil/buffer.h"
35 #include "libavutil/intreadwrite.h"
36 #include "libavutil/imgutils.h"
37 #include "libavutil/mem.h"
38 #include "libavutil/opt.h"
39
40 typedef struct RawVideoContext {
41 AVClass *av_class;
42 AVBufferRef *palette;
43 int frame_size; /* size of the frame in bytes */
44 int flip;
45 int is_1_2_4_8_bpp; // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut
46 int is_mono;
47 int is_pal8;
48 int is_nut_mono;
49 int is_nut_pal8;
50 int is_yuv2;
51 int is_lt_16bpp; // 16bpp pixfmt and bits_per_coded_sample < 16
52 int tff;
53
54 BswapDSPContext bbdsp;
55 void *bitstream_buf;
56 unsigned int bitstream_buf_size;
57 } RawVideoContext;
58
59 static const AVOption options[]={
60 {"top", "top field first", offsetof(RawVideoContext, tff), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM|AV_OPT_FLAG_VIDEO_PARAM},
61 {NULL}
62 };
63
64 static const AVClass rawdec_class = {
65 .class_name = "rawdec",
66 .option = options,
67 .version = LIBAVUTIL_VERSION_INT,
68 };
69
70 1256 static av_cold int raw_init_decoder(AVCodecContext *avctx)
71 {
72 1256 RawVideoContext *context = avctx->priv_data;
73 const AVPixFmtDescriptor *desc;
74
75 1256 ff_bswapdsp_init(&context->bbdsp);
76
77
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 1256 if ( avctx->codec_tag == MKTAG('r','a','w',' ')
78
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 1256 || avctx->codec_tag == MKTAG('N','O','1','6'))
79 ✗ avctx->pix_fmt = avpriv_pix_fmt_find(PIX_FMT_LIST_MOV,
80 ✗ avctx->bits_per_coded_sample);
81
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 1256 else if (avctx->codec_tag == MKTAG('W', 'R', 'A', 'W'))
82 ✗ avctx->pix_fmt = avpriv_pix_fmt_find(PIX_FMT_LIST_AVI,
83 ✗ avctx->bits_per_coded_sample);
84
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 1256 else if (avctx->codec_tag && (avctx->codec_tag & 0xFFFFFF) != MKTAG('B','I','T', 0))
85 650 avctx->pix_fmt = avpriv_pix_fmt_find(PIX_FMT_LIST_RAW, avctx->codec_tag);
86
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 606 else if (avctx->pix_fmt == AV_PIX_FMT_NONE && avctx->bits_per_coded_sample)
87 15 avctx->pix_fmt = avpriv_pix_fmt_find(PIX_FMT_LIST_AVI,
88 15 avctx->bits_per_coded_sample);
89
90 1256 desc = av_pix_fmt_desc_get(avctx->pix_fmt);
91
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 1256 if (!desc) {
92 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid pixel format.\n");
93 ✗ return AVERROR(EINVAL);
94 }
95
96
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 1256 if (desc->flags & AV_PIX_FMT_FLAG_PAL) {
97 8 context->palette = av_buffer_alloc(AVPALETTE_SIZE);
98
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 8 if (!context->palette)
99 ✗ return AVERROR(ENOMEM);
100 8 memset(context->palette->data, 0, AVPALETTE_SIZE);
101
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 8 if (avctx->bits_per_coded_sample == 1)
102 8 memset(context->palette->data, 0xff, 4);
103 }
104
105
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 1256 if ((avctx->extradata_size >= 9 &&
106
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 2 !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
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 1254 avctx->codec_tag == MKTAG('c','y','u','v') ||
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 1254 avctx->codec_tag == MKTAG(3, 0, 0, 0) ||
109
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 1254 avctx->codec_tag == MKTAG('W','R','A','W'))
110 2 context->flip = 1;
111
112
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 1256 if (avctx->pix_fmt == AV_PIX_FMT_MONOWHITE ||
113
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 1254 avctx->pix_fmt == AV_PIX_FMT_MONOBLACK)
114 4 context->is_mono = 1;
115
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 1252 else if (avctx->pix_fmt == AV_PIX_FMT_PAL8)
116 8 context->is_pal8 = 1;
117
118
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 1256 if (avctx->codec_tag == MKTAG('B','1','W','0') ||
119
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 1255 avctx->codec_tag == MKTAG('B','0','W','1'))
120 2 context->is_nut_mono = 1;
121
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 1254 else if (avctx->codec_tag == MKTAG('P','A','L',8))
122 ✗ context->is_nut_pal8 = 1;
123
124
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 1256 if (avctx->codec_tag == AV_RL32("yuv2") &&
125 ✗ avctx->pix_fmt == AV_PIX_FMT_YUYV422)
126 ✗ context->is_yuv2 = 1;
127
128 1256 return 0;
129 }
130
131 ✗ static void flip(AVCodecContext *avctx, AVFrame *frame)
132 {
133 ✗ frame->data[0] += frame->linesize[0] * (avctx->height - 1);
134 ✗ frame->linesize[0] *= -1;
135 ✗ }
136
137 /*
138 * Scale sample to 16-bit resolution
139 */
140 #define SCALE16(x, bits) (((x) << (16 - (bits))) | ((x) >> (2 * (bits) - 16)))
141
142 /**
143 * Scale buffer to 16 bits per coded sample resolution
144 */
145 #define MKSCALE16(name, r16, w16) \
146 static void name(AVCodecContext *avctx, uint8_t * dst, const uint8_t *buf, int buf_size, int packed) \
147 { \
148 int i; \
149 if (!packed) { \
150 for (i = 0; i + 1 < buf_size; i += 2) \
151 w16(dst + i, SCALE16(r16(buf + i), avctx->bits_per_coded_sample)); \
152 } else { \
153 GetBitContext gb; \
154 init_get_bits(&gb, buf, buf_size * 8); \
155 for (i = 0; i < avctx->width * avctx->height; i++) { \
156 int sample = get_bits(&gb, avctx->bits_per_coded_sample); \
157 w16(dst + i*2, SCALE16(sample, avctx->bits_per_coded_sample)); \
158 } \
159 } \
160 }
161
162 ✗ MKSCALE16(scale16be, AV_RB16, AV_WB16)
163 ✗ MKSCALE16(scale16le, AV_RL16, AV_WL16)
164
165 25271 static int raw_decode(AVCodecContext *avctx, AVFrame *frame,
166 int *got_frame, AVPacket *avpkt)
167 {
168 const AVPixFmtDescriptor *desc;
169 25271 RawVideoContext *context = avctx->priv_data;
170 25271 const uint8_t *buf = avpkt->data;
171 25271 int buf_size = avpkt->size;
172 25271 int linesize_align = 4;
173 int stride;
174 int res, len;
175 int need_copy;
176
177
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 25271 if (avctx->width <= 0) {
178 ✗ av_log(avctx, AV_LOG_ERROR, "width is not set\n");
179 ✗ return AVERROR_INVALIDDATA;
180 }
181
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 25271 if (avctx->height <= 0) {
182 ✗ av_log(avctx, AV_LOG_ERROR, "height is not set\n");
183 ✗ return AVERROR_INVALIDDATA;
184 }
185
186
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 25271 if (context->is_nut_mono)
187 2 stride = avctx->width / 8 + (avctx->width & 7 ? 1 : 0);
188
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 25269 else if (context->is_nut_pal8)
189 ✗ stride = avctx->width;
190 else
191 25269 stride = avpkt->size / avctx->height;
192
193 25271 av_log(avctx, AV_LOG_DEBUG, "PACKET SIZE: %d, STRIDE: %d\n", avpkt->size, stride);
194
195
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 25271 if (stride == 0 || avpkt->size < stride * avctx->height) {
196 1 av_log(avctx, AV_LOG_ERROR, "Packet too small (%d)\n", avpkt->size);
197 1 return AVERROR_INVALIDDATA;
198 }
199
200 25270 desc = av_pix_fmt_desc_get(avctx->pix_fmt);
201
202
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 25270 if ((avctx->bits_per_coded_sample == 8 || avctx->bits_per_coded_sample == 4 ||
203
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 25270 avctx->bits_per_coded_sample == 2 || avctx->bits_per_coded_sample == 1 ||
204
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 25070 (avctx->bits_per_coded_sample == 0 && (context->is_nut_pal8 || context->is_mono)) ) &&
205
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 202 (context->is_mono || context->is_pal8) &&
206
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 202 (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' ') ||
207
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 2 context->is_nut_mono || context->is_nut_pal8)) {
208 202 context->is_1_2_4_8_bpp = 1;
209
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 202 if (context->is_mono) {
210 2 int row_bytes = avctx->width / 8 + (avctx->width & 7 ? 1 : 0);
211 2 context->frame_size = av_image_get_buffer_size(avctx->pix_fmt,
212 2 FFALIGN(row_bytes, 16) * 8,
213 avctx->height, 1);
214 } else
215 200 context->frame_size = av_image_get_buffer_size(avctx->pix_fmt,
216 200 FFALIGN(avctx->width, 16),
217 avctx->height, 1);
218 } else {
219
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 25068 context->is_lt_16bpp = av_get_bits_per_pixel(desc) == 16 && avctx->bits_per_coded_sample > 8 && avctx->bits_per_coded_sample < 16;
220 25068 context->frame_size = av_image_get_buffer_size(avctx->pix_fmt, avctx->width,
221 avctx->height, 1);
222 }
223
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 25270 if (context->frame_size < 0)
224 ✗ return context->frame_size;
225
226
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 25270 need_copy = !avpkt->buf || context->is_1_2_4_8_bpp || context->is_yuv2 || context->is_lt_16bpp;
227
228 25270 res = ff_decode_frame_props(avctx, frame);
229
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 25270 if (res < 0)
230 ✗ return res;
231
232
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 25270 if (context->tff >= 0) {
233 ✗ frame->flags |= AV_FRAME_FLAG_INTERLACED;
234 ✗ if (context->tff == 1)
235 ✗ frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
236 }
237
238
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 25270 if ((res = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
239 ✗ return res;
240
241
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 25270 if (need_copy)
242 202 frame->buf[0] = av_buffer_alloc(FFMAX(context->frame_size, buf_size));
243 else
244 25068 frame->buf[0] = av_buffer_ref(avpkt->buf);
245
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 25270 if (!frame->buf[0])
246 ✗ return AVERROR(ENOMEM);
247
248 // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut
249
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 25270 if (context->is_1_2_4_8_bpp) {
250 202 int i, j, row_pix = 0;
251 202 uint8_t *dst = frame->buf[0]->data;
252
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 202 buf_size = context->frame_size - (context->is_pal8 ? AVPALETTE_SIZE : 0);
253
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 204 if (avctx->bits_per_coded_sample == 8 || context->is_nut_pal8 || context->is_mono) {
254
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 2 int pix_per_byte = context->is_mono ? 8 : 1;
255
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 25346 for (i = 0, j = 0; j < buf_size && i<avpkt->size; i++, j++) {
256 25344 dst[j] = buf[i];
257 25344 row_pix += pix_per_byte;
258
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 25344 if (row_pix >= avctx->width) {
259 576 i += stride - (i % stride) - 1;
260 576 j += 16 - (j % 16) - 1;
261 576 row_pix = 0;
262 }
263 }
264
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 200 } else if (avctx->bits_per_coded_sample == 4) {
265 ✗ for (i = 0, j = 0; 2 * j + 1 < buf_size && i<avpkt->size; i++, j++) {
266 ✗ dst[2 * j + 0] = buf[i] >> 4;
267 ✗ dst[2 * j + 1] = buf[i] & 15;
268 ✗ row_pix += 2;
269 ✗ if (row_pix >= avctx->width) {
270 ✗ i += stride - (i % stride) - 1;
271 ✗ j += 8 - (j % 8) - 1;
272 ✗ row_pix = 0;
273 }
274 }
275
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 200 } else if (avctx->bits_per_coded_sample == 2) {
276 ✗ for (i = 0, j = 0; 4 * j + 3 < buf_size && i<avpkt->size; i++, j++) {
277 ✗ dst[4 * j + 0] = buf[i] >> 6;
278 ✗ dst[4 * j + 1] = buf[i] >> 4 & 3;
279 ✗ dst[4 * j + 2] = buf[i] >> 2 & 3;
280 ✗ dst[4 * j + 3] = buf[i] & 3;
281 ✗ row_pix += 4;
282 ✗ if (row_pix >= avctx->width) {
283 ✗ i += stride - (i % stride) - 1;
284 ✗ j += 4 - (j % 4) - 1;
285 ✗ row_pix = 0;
286 }
287 }
288 } else {
289
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 200 av_assert0(avctx->bits_per_coded_sample == 1);
290
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 1909500 for (i = 0, j = 0; 8 * j + 7 < buf_size && i<avpkt->size; i++, j++) {
291 1909300 dst[8 * j + 0] = buf[i] >> 7;
292 1909300 dst[8 * j + 1] = buf[i] >> 6 & 1;
293 1909300 dst[8 * j + 2] = buf[i] >> 5 & 1;
294 1909300 dst[8 * j + 3] = buf[i] >> 4 & 1;
295 1909300 dst[8 * j + 4] = buf[i] >> 3 & 1;
296 1909300 dst[8 * j + 5] = buf[i] >> 2 & 1;
297 1909300 dst[8 * j + 6] = buf[i] >> 1 & 1;
298 1909300 dst[8 * j + 7] = buf[i] & 1;
299 1909300 row_pix += 8;
300
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 1909300 if (row_pix >= avctx->width) {
301 44900 i += stride - (i % stride) - 1;
302 44900 j += 2 - (j % 2) - 1;
303 44900 row_pix = 0;
304 }
305 }
306 }
307 202 linesize_align = 16;
308 202 buf = dst;
309
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 25068 } else if (context->is_lt_16bpp) {
310 ✗ uint8_t *dst = frame->buf[0]->data;
311 ✗ int packed = (avctx->codec_tag & 0xFFFFFF) == MKTAG('B','I','T', 0);
312 ✗ int swap = avctx->codec_tag >> 24;
313
314 ✗ if (packed && swap) {
315 ✗ av_fast_padded_malloc(&context->bitstream_buf, &context->bitstream_buf_size, buf_size);
316 ✗ if (!context->bitstream_buf)
317 ✗ return AVERROR(ENOMEM);
318 ✗ if (swap == 16)
319 ✗ context->bbdsp.bswap16_buf(context->bitstream_buf, (const uint16_t*)buf, buf_size / 2);
320 ✗ else if (swap == 32)
321 ✗ context->bbdsp.bswap_buf(context->bitstream_buf, (const uint32_t*)buf, buf_size / 4);
322 else
323 ✗ return AVERROR_INVALIDDATA;
324 ✗ buf = context->bitstream_buf;
325 }
326
327 ✗ if (desc->flags & AV_PIX_FMT_FLAG_BE)
328 ✗ scale16be(avctx, dst, buf, buf_size, packed);
329 else
330 ✗ scale16le(avctx, dst, buf, buf_size, packed);
331
332 ✗ buf = dst;
333
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 25068 } else if (need_copy) {
334 ✗ memcpy(frame->buf[0]->data, buf, buf_size);
335 ✗ buf = frame->buf[0]->data;
336 }
337
338
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 25270 if (avctx->codec_tag == MKTAG('A', 'V', '1', 'x') ||
339
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 25270 avctx->codec_tag == MKTAG('A', 'V', 'u', 'p'))
340 ✗ buf += buf_size - context->frame_size;
341
342
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 25270 len = context->frame_size - (avctx->pix_fmt==AV_PIX_FMT_PAL8 ? AVPALETTE_SIZE : 0);
343
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 25270 if (buf_size < len && ((avctx->codec_tag & 0xFFFFFF) != MKTAG('B','I','T', 0) || !need_copy)) {
344 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid buffer size, packet size %d < expected frame_size %d\n", buf_size, len);
345 ✗ av_buffer_unref(&frame->buf[0]);
346 ✗ return AVERROR(EINVAL);
347 }
348
349
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 25270 if ((res = av_image_fill_arrays(frame->data, frame->linesize,
350 buf, avctx->pix_fmt,
351 avctx->width, avctx->height, 1)) < 0) {
352 ✗ av_buffer_unref(&frame->buf[0]);
353 ✗ return res;
354 }
355
356
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 25270 if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
357 int ret;
358
359
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 200 if (!context->palette)
360 ✗ context->palette = av_buffer_alloc(AVPALETTE_SIZE);
361
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 200 if (!context->palette) {
362 ✗ av_buffer_unref(&frame->buf[0]);
363 ✗ return AVERROR(ENOMEM);
364 }
365 200 ret = av_buffer_make_writable(&context->palette);
366
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 200 if (ret < 0) {
367 ✗ av_buffer_unref(&frame->buf[0]);
368 ✗ return ret;
369 }
370
371
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 200 if (ff_copy_palette(context->palette->data, avpkt, avctx)) {
372 #if FF_API_PALETTE_HAS_CHANGED
373 FF_DISABLE_DEPRECATION_WARNINGS
374 4 frame->palette_has_changed = 1;
375 FF_ENABLE_DEPRECATION_WARNINGS
376 #endif
377
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 196 } else if (context->is_nut_pal8) {
378 ✗ int vid_size = avctx->width * avctx->height;
379 ✗ int pal_size = avpkt->size - vid_size;
380
381 ✗ if (avpkt->size > vid_size && pal_size <= AVPALETTE_SIZE) {
382 ✗ const uint8_t *pal = avpkt->data + vid_size;
383 ✗ memcpy(context->palette->data, pal, pal_size);
384 #if FF_API_PALETTE_HAS_CHANGED
385 FF_DISABLE_DEPRECATION_WARNINGS
386 ✗ frame->palette_has_changed = 1;
387 FF_ENABLE_DEPRECATION_WARNINGS
388 #endif
389 }
390 }
391 }
392
393
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 25270 if ((avctx->pix_fmt==AV_PIX_FMT_RGB24 ||
394
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 25205 avctx->pix_fmt==AV_PIX_FMT_BGR24 ||
395
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 24803 avctx->pix_fmt==AV_PIX_FMT_GRAY8 ||
396
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 24802 avctx->pix_fmt==AV_PIX_FMT_RGB555LE ||
397
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 24401 avctx->pix_fmt==AV_PIX_FMT_RGB555BE ||
398
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 24401 avctx->pix_fmt==AV_PIX_FMT_RGB565LE ||
399
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 24200 avctx->pix_fmt==AV_PIX_FMT_MONOWHITE ||
400
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 24199 avctx->pix_fmt==AV_PIX_FMT_MONOBLACK ||
401
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 24198 avctx->pix_fmt==AV_PIX_FMT_PAL8) &&
402
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 1272 FFALIGN(frame->linesize[0], linesize_align) * avctx->height <= buf_size)
403 1222 frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align);
404
405
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 25270 if (avctx->pix_fmt == AV_PIX_FMT_NV12 && avctx->codec_tag == MKTAG('N', 'V', '1', '2') &&
406 1 FFALIGN(frame->linesize[0], linesize_align) * avctx->height +
407
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 1 FFALIGN(frame->linesize[1], linesize_align) * ((avctx->height + 1) / 2) <= buf_size) {
408 1 int la0 = FFALIGN(frame->linesize[0], linesize_align);
409 1 frame->data[1] += (la0 - frame->linesize[0]) * avctx->height;
410 1 frame->linesize[0] = la0;
411 1 frame->linesize[1] = FFALIGN(frame->linesize[1], linesize_align);
412 }
413
414
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 25270 if (avctx->pix_fmt == AV_PIX_FMT_PAL8 && buf_size < context->frame_size) {
415 200 frame->buf[1] = av_buffer_ref(context->palette);
416
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 200 if (!frame->buf[1]) {
417 ✗ av_buffer_unref(&frame->buf[0]);
418 ✗ return AVERROR(ENOMEM);
419 }
420 200 frame->data[1] = frame->buf[1]->data;
421 }
422
423
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 25270 if (avctx->pix_fmt == AV_PIX_FMT_BGR24 &&
424
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 402 ((frame->linesize[0] + 3) & ~3) * avctx->height <= buf_size)
425 352 frame->linesize[0] = (frame->linesize[0] + 3) & ~3;
426
427
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 25270 if (context->flip)
428 ✗ flip(avctx, frame);
429
430
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 25270 if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2') ||
431
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432
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433
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 25270 avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))
434 ✗ FFSWAP(uint8_t *, frame->data[1], frame->data[2]);
435
436
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 25270 if (avctx->codec_tag == AV_RL32("I420") && (avctx->width+1)*(avctx->height+1) * 3/2 == buf_size) {
437 ✗ frame->data[1] = frame->data[1] + (avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height;
438 ✗ frame->data[2] = frame->data[2] + ((avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height)*5/4;
439 }
440
441
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 25270 if (avctx->codec_tag == AV_RL32("yuv2") &&
442 ✗ avctx->pix_fmt == AV_PIX_FMT_YUYV422) {
443 int x, y;
444 ✗ uint8_t *line = frame->data[0];
445 ✗ for (y = 0; y < avctx->height; y++) {
446 ✗ for (x = 0; x < avctx->width; x++)
447 ✗ line[2 * x + 1] ^= 0x80;
448 ✗ line += frame->linesize[0];
449 }
450 }
451
452
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 25270 if (avctx->codec_tag == AV_RL32("b64a") &&
453 ✗ avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
454 ✗ uint8_t *dst = frame->data[0];
455 uint64_t v;
456 int x, y;
457 ✗ for (y = 0; y < avctx->height; y++) {
458 ✗ for (x = 0; x >> 3 < avctx->width; x += 8) {
459 ✗ v = AV_RB64(&dst[x]);
460 ✗ AV_WB64(&dst[x], v << 16 | v >> 48);
461 }
462 ✗ dst += frame->linesize[0];
463 }
464 }
465
466
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 25270 if (avctx->field_order > AV_FIELD_PROGRESSIVE) { /* we have interlaced material flagged in container */
467 ✗ frame->flags |= AV_FRAME_FLAG_INTERLACED;
468 ✗ if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)
469 ✗ frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
470 }
471
472 25270 *got_frame = 1;
473 25270 return buf_size;
474 }
475
476 1256 static av_cold int raw_close_decoder(AVCodecContext *avctx)
477 {
478 1256 RawVideoContext *context = avctx->priv_data;
479
480 1256 av_buffer_unref(&context->palette);
481 1256 av_freep(&context->bitstream_buf);
482 1256 return 0;
483 }
484
485 const FFCodec ff_rawvideo_decoder = {
486 .p.name = "rawvideo",
487 CODEC_LONG_NAME("raw video"),
488 .p.type = AVMEDIA_TYPE_VIDEO,
489 .p.id = AV_CODEC_ID_RAWVIDEO,
490 .priv_data_size = sizeof(RawVideoContext),
491 .init = raw_init_decoder,
492 .close = raw_close_decoder,
493 FF_CODEC_DECODE_CB(raw_decode),
494 .p.priv_class = &rawdec_class,
495 .p.capabilities = AV_CODEC_CAP_PARAM_CHANGE,
496 };
497