FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/utvideoenc.c
Date: 2026-01-23 19:11:46
Exec Total Coverage
Lines: 248 289 85.8%
Functions: 11 11 100.0%
Branches: 104 131 79.4%
Line Branch Exec Source
1 /*
2 * Ut Video encoder
3 * Copyright (c) 2012 Jan Ekström
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 * Ut Video encoder
25 */
26
27 #include "libavutil/avassert.h"
28 #include "libavutil/imgutils.h"
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/mem.h"
31 #include "libavutil/opt.h"
32
33 #include "avcodec.h"
34 #include "codec_internal.h"
35 #include "encode.h"
36 #include "bswapdsp.h"
37 #include "bytestream.h"
38 #include "lossless_videoencdsp.h"
39 #include "put_bits.h"
40 #include "utvideo.h"
41 #include "huffman.h"
42
43 typedef struct UtvideoContext {
44 const AVClass *class;
45 BswapDSPContext bdsp;
46 LLVidEncDSPContext llvidencdsp;
47
48 uint32_t frame_info_size, flags;
49 int planes;
50 int slices;
51 int compression;
52 int frame_pred;
53
54 ptrdiff_t slice_stride;
55 uint8_t *slice_bits, *slice_buffer[4];
56 int slice_bits_size;
57 } UtvideoContext;
58
59 typedef struct HuffEntry {
60 uint16_t sym;
61 uint8_t len;
62 uint32_t code;
63 } HuffEntry;
64
65 /* Compare huffman tree nodes */
66 3203178 static int ut_huff_cmp_len(const void *a, const void *b)
67 {
68 3203178 const HuffEntry *aa = a, *bb = b;
69 3203178 return (aa->len - bb->len)*256 + aa->sym - bb->sym;
70 }
71
72 /* Compare huffentry symbols */
73 3158830 static int huff_cmp_sym(const void *a, const void *b)
74 {
75 3158830 const HuffEntry *aa = a, *bb = b;
76 3158830 return aa->sym - bb->sym;
77 }
78
79 136 static av_cold int utvideo_encode_close(AVCodecContext *avctx)
80 {
81 136 UtvideoContext *c = avctx->priv_data;
82 int i;
83
84 136 av_freep(&c->slice_bits);
85
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 680 for (i = 0; i < 4; i++)
86 544 av_freep(&c->slice_buffer[i]);
87
88 136 return 0;
89 }
90
91 136 static av_cold int utvideo_encode_init(AVCodecContext *avctx)
92 {
93 136 UtvideoContext *c = avctx->priv_data;
94 int i, subsampled_height;
95 uint32_t original_format;
96
97 136 c->frame_info_size = 4;
98 136 c->slice_stride = FFALIGN(avctx->width, 32);
99
100
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 136 switch (avctx->pix_fmt) {
101 27 case AV_PIX_FMT_GBRP:
102 27 c->planes = 3;
103 27 avctx->codec_tag = MKTAG('U', 'L', 'R', 'G');
104 27 original_format = UTVIDEO_RGB;
105 27 break;
106 27 case AV_PIX_FMT_GBRAP:
107 27 c->planes = 4;
108 27 avctx->codec_tag = MKTAG('U', 'L', 'R', 'A');
109 27 original_format = UTVIDEO_RGBA;
110 27 avctx->bits_per_coded_sample = 32;
111 27 break;
112 28 case AV_PIX_FMT_YUV420P:
113
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 28 if (avctx->width & 1 || avctx->height & 1) {
114 ✗ av_log(avctx, AV_LOG_ERROR,
115 "4:2:0 video requires even width and height.\n");
116 ✗ return AVERROR_INVALIDDATA;
117 }
118 28 c->planes = 3;
119
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 28 if (avctx->colorspace == AVCOL_SPC_BT709)
120 ✗ avctx->codec_tag = MKTAG('U', 'L', 'H', '0');
121 else
122 28 avctx->codec_tag = MKTAG('U', 'L', 'Y', '0');
123 28 original_format = UTVIDEO_420;
124 28 break;
125 27 case AV_PIX_FMT_YUV422P:
126
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 27 if (avctx->width & 1) {
127 ✗ av_log(avctx, AV_LOG_ERROR,
128 "4:2:2 video requires even width.\n");
129 ✗ return AVERROR_INVALIDDATA;
130 }
131 27 c->planes = 3;
132
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 27 if (avctx->colorspace == AVCOL_SPC_BT709)
133 ✗ avctx->codec_tag = MKTAG('U', 'L', 'H', '2');
134 else
135 27 avctx->codec_tag = MKTAG('U', 'L', 'Y', '2');
136 27 original_format = UTVIDEO_422;
137 27 break;
138 27 case AV_PIX_FMT_YUV444P:
139 27 c->planes = 3;
140
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 27 if (avctx->colorspace == AVCOL_SPC_BT709)
141 ✗ avctx->codec_tag = MKTAG('U', 'L', 'H', '4');
142 else
143 27 avctx->codec_tag = MKTAG('U', 'L', 'Y', '4');
144 27 original_format = UTVIDEO_444;
145 27 break;
146 ✗ default:
147 ✗ av_unreachable("Already checked via CODEC_PIXFMTS");
148 }
149
150 136 ff_bswapdsp_init(&c->bdsp);
151 136 ff_llvidencdsp_init(&c->llvidencdsp);
152
153
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 136 if (c->frame_pred == PRED_GRADIENT) {
154 ✗ av_log(avctx, AV_LOG_ERROR, "Gradient prediction is not supported.\n");
155 ✗ return AVERROR_PATCHWELCOME;
156 }
157
158 /*
159 * Check the asked slice count for obviously invalid
160 * values (> 256 or negative).
161 */
162
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 136 if (avctx->slices > 256 || avctx->slices < 0) {
163 ✗ av_log(avctx, AV_LOG_ERROR,
164 "Slice count %d is not supported in Ut Video (theoretical range is 0-256).\n",
165 avctx->slices);
166 ✗ return AVERROR(EINVAL);
167 }
168
169 /* Check that the slice count is not larger than the subsampled height */
170 136 subsampled_height = avctx->height >> av_pix_fmt_desc_get(avctx->pix_fmt)->log2_chroma_h;
171
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 136 if (avctx->slices > subsampled_height) {
172 ✗ av_log(avctx, AV_LOG_ERROR,
173 "Slice count %d is larger than the subsampling-applied height %d.\n",
174 avctx->slices, subsampled_height);
175 ✗ return AVERROR(EINVAL);
176 }
177
178 /* extradata size is 4 * 32 bits */
179 136 avctx->extradata_size = 16;
180
181 136 avctx->extradata = av_mallocz(avctx->extradata_size +
182 AV_INPUT_BUFFER_PADDING_SIZE);
183
184
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 136 if (!avctx->extradata) {
185 ✗ av_log(avctx, AV_LOG_ERROR, "Could not allocate extradata.\n");
186 ✗ return AVERROR(ENOMEM);
187 }
188
189
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 571 for (i = 0; i < c->planes; i++) {
190 435 c->slice_buffer[i] = av_malloc(c->slice_stride * (avctx->height + 2) +
191 AV_INPUT_BUFFER_PADDING_SIZE);
192
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 435 if (!c->slice_buffer[i]) {
193 ✗ av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer 1.\n");
194 ✗ return AVERROR(ENOMEM);
195 }
196 }
197
198 /*
199 * Set the version of the encoder.
200 * Last byte is "implementation ID", which is
201 * obtained from the creator of the format.
202 * Libavcodec has been assigned with the ID 0xF0.
203 */
204 136 AV_WB32(avctx->extradata, MKTAG(1, 0, 0, 0xF0));
205
206 /*
207 * Set the "original format"
208 * Not used for anything during decoding.
209 */
210 136 AV_WL32(avctx->extradata + 4, original_format);
211
212 /* Write 4 as the 'frame info size' */
213 136 AV_WL32(avctx->extradata + 8, c->frame_info_size);
214
215 /*
216 * Set how many slices are going to be used.
217 * By default uses multiple slices depending on the subsampled height.
218 * This enables multithreading in the official decoder.
219 */
220
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 136 if (!avctx->slices) {
221 1 c->slices = subsampled_height / 120;
222
223
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 1 if (!c->slices)
224 ✗ c->slices = 1;
225
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 1 else if (c->slices > 256)
226 ✗ c->slices = 256;
227 } else {
228 135 c->slices = avctx->slices;
229 }
230
231 /* Set compression mode */
232 136 c->compression = COMP_HUFF;
233
234 /*
235 * Set the encoding flags:
236 * - Slice count minus 1
237 * - Interlaced encoding mode flag, set to zero for now.
238 * - Compression mode (none/huff)
239 * And write the flags.
240 */
241 136 c->flags = (c->slices - 1U) << 24;
242 136 c->flags |= 0 << 11; // bit field to signal interlaced encoding mode
243 136 c->flags |= c->compression;
244
245 136 AV_WL32(avctx->extradata + 12, c->flags);
246
247 136 return 0;
248 }
249
250 300 static void mangle_rgb_planes(uint8_t *dst[4], ptrdiff_t dst_stride,
251 uint8_t *const src[4], int planes, const int stride[4],
252 int width, int height)
253 {
254 int i, j;
255 300 int k = 2 * dst_stride;
256 300 const uint8_t *sg = src[0];
257 300 const uint8_t *sb = src[1];
258 300 const uint8_t *sr = src[2];
259 300 const uint8_t *sa = src[3];
260 unsigned int g;
261
262
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 86700 for (j = 0; j < height; j++) {
263
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 86400 if (planes == 3) {
264
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 15249600 for (i = 0; i < width; i++) {
265 15206400 g = sg[i];
266 15206400 dst[0][k] = g;
267 15206400 g += 0x80;
268 15206400 dst[1][k] = sb[i] - g;
269 15206400 dst[2][k] = sr[i] - g;
270 15206400 k++;
271 }
272 } else {
273
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 15249600 for (i = 0; i < width; i++) {
274 15206400 g = sg[i];
275 15206400 dst[0][k] = g;
276 15206400 g += 0x80;
277 15206400 dst[1][k] = sb[i] - g;
278 15206400 dst[2][k] = sr[i] - g;
279 15206400 dst[3][k] = sa[i];
280 15206400 k++;
281 }
282 43200 sa += stride[3];
283 }
284 86400 k += dst_stride - width;
285 86400 sg += stride[0];
286 86400 sb += stride[1];
287 86400 sr += stride[2];
288 }
289 300 }
290
291 #undef A
292 #undef B
293
294 /* Write data to a plane with median prediction */
295 800 static void median_predict(UtvideoContext *c, const uint8_t *src, uint8_t *dst,
296 ptrdiff_t stride, int width, int height)
297 {
298 int i, j;
299 int A, B;
300 uint8_t prev;
301
302 /* First line uses left neighbour prediction */
303 800 prev = 0x80; /* Set the initial value */
304
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 247200 for (i = 0; i < width; i++) {
305 246400 *dst++ = src[i] - prev;
306 246400 prev = src[i];
307 }
308
309
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 800 if (height == 1)
310 ✗ return;
311
312 800 src += stride;
313
314 /*
315 * Second line uses top prediction for the first sample,
316 * and median for the rest.
317 */
318 800 A = B = 0;
319
320 /* Rest of the coded part uses median prediction */
321
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 216000 for (j = 1; j < height; j++) {
322 215200 c->llvidencdsp.sub_median_pred(dst, src - stride, src, width, &A, &B);
323 215200 dst += width;
324 215200 src += stride;
325 }
326 }
327
328 /* Count the usage of values in a plane */
329 2403 static void count_usage(uint8_t *src, int width,
330 int height, uint64_t *counts)
331 {
332 int i, j;
333
334
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 651683 for (j = 0; j < height; j++) {
335
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 206281280 for (i = 0; i < width; i++) {
336 205632000 counts[src[i]]++;
337 }
338 649280 src += width;
339 }
340 2403 }
341
342 /* Calculate the actual huffman codes from the code lengths */
343 2353 static void calculate_codes(HuffEntry *he)
344 {
345 int last, i;
346 uint32_t code;
347
348 2353 qsort(he, 256, sizeof(*he), ut_huff_cmp_len);
349
350 2353 last = 255;
351
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 86484 while (he[last].len == 255 && last)
352 84131 last--;
353
354 2353 code = 0;
355
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 520590 for (i = last; i >= 0; i--) {
356 518237 he[i].code = code >> (32 - he[i].len);
357 518237 code += 0x80000000u >> (he[i].len - 1);
358 }
359
360 2353 qsort(he, 256, sizeof(*he), huff_cmp_sym);
361 2353 }
362
363 /* Write huffman bit codes to a memory block */
364 2356 static int write_huff_codes(uint8_t *src, uint8_t *dst, int dst_size,
365 int width, int height, HuffEntry *he)
366 {
367 PutBitContext pb;
368 int i, j;
369 int count;
370
371 2356 init_put_bits(&pb, dst, dst_size);
372
373 /* Write the codes */
374
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 637236 for (j = 0; j < height; j++) {
375
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 201198080 for (i = 0; i < width; i++)
376 200563200 put_bits(&pb, he[src[i]].len, he[src[i]].code);
377
378 634880 src += width;
379 }
380
381 /* Pad output to a 32-bit boundary */
382 2356 count = put_bits_count(&pb) & 0x1F;
383
384
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 2356 if (count)
385 2176 put_bits(&pb, 32 - count, 0);
386
387 /* Flush the rest with zeroes */
388 2356 flush_put_bits(&pb);
389
390 /* Return the amount of bytes written */
391 2356 return put_bytes_output(&pb);
392 }
393
394 2403 static int encode_plane(AVCodecContext *avctx, const uint8_t *src,
395 uint8_t *dst, ptrdiff_t stride, int plane_no,
396 int width, int height, PutByteContext *pb)
397 {
398 2403 UtvideoContext *c = avctx->priv_data;
399 uint8_t lengths[256];
400 2403 uint64_t counts[256] = { 0 };
401
402 HuffEntry he[256];
403
404 2403 uint32_t offset = 0, slice_len = 0;
405
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 2403 const int cmask = ~(!plane_no && avctx->pix_fmt == AV_PIX_FMT_YUV420P);
406 2403 int i, sstart, send = 0;
407 int symbol;
408 int ret;
409
410 /* Do prediction / make planes */
411
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 2403 switch (c->frame_pred) {
412 800 case PRED_NONE:
413
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 1600 for (i = 0; i < c->slices; i++) {
414 800 sstart = send;
415 800 send = height * (i + 1) / c->slices & cmask;
416 800 av_image_copy_plane(dst + sstart * width, width,
417 800 src + sstart * stride, stride,
418 width, send - sstart);
419 }
420 800 break;
421 803 case PRED_LEFT:
422
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 1609 for (i = 0; i < c->slices; i++) {
423 806 sstart = send;
424 806 send = height * (i + 1) / c->slices & cmask;
425 806 c->llvidencdsp.sub_left_predict(dst + sstart * width, src + sstart * stride, stride, width, send - sstart);
426 }
427 803 break;
428 800 case PRED_MEDIAN:
429
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 1600 for (i = 0; i < c->slices; i++) {
430 800 sstart = send;
431 800 send = height * (i + 1) / c->slices & cmask;
432 800 median_predict(c, src + sstart * stride, dst + sstart * width,
433 stride, width, send - sstart);
434 }
435 800 break;
436 ✗ default:
437 ✗ av_log(avctx, AV_LOG_ERROR, "Unknown prediction mode: %d\n",
438 c->frame_pred);
439 ✗ return AVERROR_OPTION_NOT_FOUND;
440 }
441
442 /* Count the usage of values */
443 2403 count_usage(dst, width, height, counts);
444
445 /* Check for a special case where only one symbol was used */
446
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 16843 for (symbol = 0; symbol < 256; symbol++) {
447 /* If non-zero count is found, see if it matches width * height */
448
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 16843 if (counts[symbol]) {
449 /* Special case if only one symbol was used */
450
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 2403 if (counts[symbol] == width * (int64_t)height) {
451 /*
452 * Write a zero for the single symbol
453 * used in the plane, else 0xFF.
454 */
455
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 12850 for (i = 0; i < 256; i++) {
456
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 12800 if (i == symbol)
457 50 bytestream2_put_byte(pb, 0);
458 else
459 12750 bytestream2_put_byte(pb, 0xFF);
460 }
461
462 /* Write zeroes for lengths */
463
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 100 for (i = 0; i < c->slices; i++)
464 50 bytestream2_put_le32(pb, 0);
465
466 /* And that's all for that plane folks */
467 50 return 0;
468 }
469 2353 break;
470 }
471 }
472
473 /* Calculate huffman lengths */
474
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 2353 if ((ret = ff_huff_gen_len_table(lengths, counts, 256, 1)) < 0)
475 ✗ return ret;
476
477 /*
478 * Write the plane's header into the output packet:
479 * - huffman code lengths (256 bytes)
480 * - slice end offsets (gotten from the slice lengths)
481 */
482
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 604721 for (i = 0; i < 256; i++) {
483 602368 bytestream2_put_byte(pb, lengths[i]);
484
485 602368 he[i].len = lengths[i];
486 602368 he[i].sym = i;
487 }
488
489 /* Calculate the huffman codes themselves */
490 2353 calculate_codes(he);
491
492 2353 send = 0;
493
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 4709 for (i = 0; i < c->slices; i++) {
494 2356 sstart = send;
495 2356 send = height * (i + 1) / c->slices & cmask;
496
497 /*
498 * Write the huffman codes to a buffer,
499 * get the offset in bytes.
500 */
501 4712 offset += write_huff_codes(dst + sstart * width, c->slice_bits,
502 2356 width * height + 4, width,
503 send - sstart, he);
504
505 2356 slice_len = offset - slice_len;
506
507 /* Byteswap the written huffman codes */
508 2356 c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
509 2356 (uint32_t *) c->slice_bits,
510 2356 slice_len >> 2);
511
512 /* Write the offset to the stream */
513 2356 bytestream2_put_le32(pb, offset);
514
515 /* Seek to the data part of the packet */
516 2356 bytestream2_seek_p(pb, 4 * (c->slices - i - 1) +
517 2356 offset - slice_len, SEEK_CUR);
518
519 /* Write the slices' data into the output packet */
520 2356 bytestream2_put_buffer(pb, c->slice_bits, slice_len);
521
522 /* Seek back to the slice offsets */
523 2356 bytestream2_seek_p(pb, -4 * (c->slices - i - 1) - offset,
524 SEEK_CUR);
525
526 2356 slice_len = offset;
527 }
528
529 /* And at the end seek to the end of written slice(s) */
530 2353 bytestream2_seek_p(pb, offset, SEEK_CUR);
531
532 2353 return 0;
533 }
534
535 751 static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
536 const AVFrame *pic, int *got_packet)
537 {
538 751 UtvideoContext *c = avctx->priv_data;
539 PutByteContext pb;
540
541 uint32_t frame_info;
542
543 uint8_t *dst;
544
545 751 int width = avctx->width, height = avctx->height;
546 751 int i, ret = 0;
547
548 /* Allocate a new packet if needed, and set it to the pointer dst */
549 751 ret = ff_alloc_packet(avctx, pkt, (256 + 4 * c->slices + width * height)
550 751 * c->planes + 4);
551
552
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 751 if (ret < 0)
553 ✗ return ret;
554
555 751 dst = pkt->data;
556
557 751 bytestream2_init_writer(&pb, dst, pkt->size);
558
559 751 av_fast_padded_malloc(&c->slice_bits, &c->slice_bits_size, width * height + 4);
560
561
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 751 if (!c->slice_bits) {
562 ✗ av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer 2.\n");
563 ✗ return AVERROR(ENOMEM);
564 }
565
566 /* In case of RGB, mangle the planes to Ut Video's format */
567
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 751 if (avctx->pix_fmt == AV_PIX_FMT_GBRAP || avctx->pix_fmt == AV_PIX_FMT_GBRP)
568 300 mangle_rgb_planes(c->slice_buffer, c->slice_stride, pic->data,
569 300 c->planes, pic->linesize, width, height);
570
571 /* Deal with the planes */
572
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 751 switch (avctx->pix_fmt) {
573 300 case AV_PIX_FMT_GBRP:
574 case AV_PIX_FMT_GBRAP:
575
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 1350 for (i = 0; i < c->planes; i++) {
576 1050 ret = encode_plane(avctx, c->slice_buffer[i] + 2 * c->slice_stride,
577 c->slice_buffer[i], c->slice_stride, i,
578 width, height, &pb);
579
580
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 1050 if (ret) {
581 ✗ av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
582 ✗ return ret;
583 }
584 }
585 300 break;
586 150 case AV_PIX_FMT_YUV444P:
587
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 600 for (i = 0; i < c->planes; i++) {
588 450 ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
589 450 pic->linesize[i], i, width, height, &pb);
590
591
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 450 if (ret) {
592 ✗ av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
593 ✗ return ret;
594 }
595 }
596 150 break;
597 150 case AV_PIX_FMT_YUV422P:
598
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 600 for (i = 0; i < c->planes; i++) {
599 450 ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
600 450 pic->linesize[i], i, width >> !!i, height, &pb);
601
602
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 450 if (ret) {
603 ✗ av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
604 ✗ return ret;
605 }
606 }
607 150 break;
608 151 case AV_PIX_FMT_YUV420P:
609
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 604 for (i = 0; i < c->planes; i++) {
610 453 ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
611 453 pic->linesize[i], i, width >> !!i, height >> !!i,
612 &pb);
613
614
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 453 if (ret) {
615 ✗ av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
616 ✗ return ret;
617 }
618 }
619 151 break;
620 ✗ default:
621 ✗ av_log(avctx, AV_LOG_ERROR, "Unknown pixel format: %d\n",
622 ✗ avctx->pix_fmt);
623 ✗ return AVERROR_INVALIDDATA;
624 }
625
626 /*
627 * Write frame information (LE 32-bit unsigned)
628 * into the output packet.
629 * Contains the prediction method.
630 */
631 751 frame_info = c->frame_pred << 8;
632 751 bytestream2_put_le32(&pb, frame_info);
633
634 751 pkt->size = bytestream2_tell_p(&pb);
635
636 /* Packet should be done */
637 751 *got_packet = 1;
638
639 751 return 0;
640 }
641
642 #define OFFSET(x) offsetof(UtvideoContext, x)
643 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
644 static const AVOption options[] = {
645 { "pred", "Prediction method", OFFSET(frame_pred), AV_OPT_TYPE_INT, { .i64 = PRED_LEFT }, PRED_NONE, PRED_MEDIAN, VE, .unit = "pred" },
646 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRED_NONE }, INT_MIN, INT_MAX, VE, .unit = "pred" },
647 { "left", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRED_LEFT }, INT_MIN, INT_MAX, VE, .unit = "pred" },
648 { "median", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRED_MEDIAN }, INT_MIN, INT_MAX, VE, .unit = "pred" },
649
650 { NULL},
651 };
652
653 static const AVClass utvideo_class = {
654 .class_name = "utvideo",
655 .item_name = av_default_item_name,
656 .option = options,
657 .version = LIBAVUTIL_VERSION_INT,
658 };
659
660 const FFCodec ff_utvideo_encoder = {
661 .p.name = "utvideo",
662 CODEC_LONG_NAME("Ut Video"),
663 .p.type = AVMEDIA_TYPE_VIDEO,
664 .p.id = AV_CODEC_ID_UTVIDEO,
665 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
666 AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
667 .priv_data_size = sizeof(UtvideoContext),
668 .p.priv_class = &utvideo_class,
669 .init = utvideo_encode_init,
670 FF_CODEC_ENCODE_CB(utvideo_encode_frame),
671 .close = utvideo_encode_close,
672 CODEC_PIXFMTS(AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
673 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV444P),
674 .color_ranges = AVCOL_RANGE_MPEG,
675 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
676 };
677