2 * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
4 * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
7 * This file is part of Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "libavutil/opt.h"
34 #include "huffyuvencdsp.h"
38 static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst,
39 uint8_t *src, int w, int left)
43 for (i = 0; i < w; i++) {
44 const int temp = src[i];
50 for (i = 0; i < 16; i++) {
51 const int temp = src[i];
55 s->hencdsp.diff_bytes(dst + 16, src + 16, src + 15, w - 16);
60 static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst,
62 int *red, int *green, int *blue,
72 for (i = 0; i < FFMIN(w, 4); i++) {
73 const int rt = src[i * 4 + R];
74 const int gt = src[i * 4 + G];
75 const int bt = src[i * 4 + B];
76 const int at = src[i * 4 + A];
77 dst[i * 4 + R] = rt - r;
78 dst[i * 4 + G] = gt - g;
79 dst[i * 4 + B] = bt - b;
80 dst[i * 4 + A] = at - a;
87 s->hencdsp.diff_bytes(dst + 16, src + 16, src + 12, w * 4 - 16);
89 *red = src[(w - 1) * 4 + R];
90 *green = src[(w - 1) * 4 + G];
91 *blue = src[(w - 1) * 4 + B];
92 *alpha = src[(w - 1) * 4 + A];
95 static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst,
97 int *red, int *green, int *blue)
104 for (i = 0; i < FFMIN(w, 16); i++) {
105 const int rt = src[i * 3 + 0];
106 const int gt = src[i * 3 + 1];
107 const int bt = src[i * 3 + 2];
108 dst[i * 3 + 0] = rt - r;
109 dst[i * 3 + 1] = gt - g;
110 dst[i * 3 + 2] = bt - b;
116 s->hencdsp.diff_bytes(dst + 48, src + 48, src + 48 - 3, w * 3 - 48);
118 *red = src[(w - 1) * 3 + 0];
119 *green = src[(w - 1) * 3 + 1];
120 *blue = src[(w - 1) * 3 + 2];
123 static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf)
128 for (i = 0; i < 256;) {
132 for (; i < 256 && len[i] == val && repeat < 255; i++)
135 assert(val < 32 && val >0 && repeat<256 && repeat>0);
138 buf[index++] = repeat;
140 buf[index++] = val | (repeat << 5);
147 static av_cold int encode_init(AVCodecContext *avctx)
149 HYuvContext *s = avctx->priv_data;
152 ff_huffyuv_common_init(avctx);
153 ff_huffyuvencdsp_init(&s->hencdsp);
155 avctx->extradata = av_mallocz(1024*30); // 256*3+4 == 772
156 avctx->stats_out = av_mallocz(1024*30); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132
159 if (!avctx->extradata || !avctx->stats_out)
160 return AVERROR(ENOMEM);
162 #if FF_API_CODED_FRAME
163 FF_DISABLE_DEPRECATION_WARNINGS
164 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
165 avctx->coded_frame->key_frame = 1;
166 FF_ENABLE_DEPRECATION_WARNINGS
168 #if FF_API_PRIVATE_OPT
169 FF_DISABLE_DEPRECATION_WARNINGS
170 if (avctx->context_model == 1)
171 s->context = avctx->context_model;
172 FF_ENABLE_DEPRECATION_WARNINGS
175 switch (avctx->pix_fmt) {
176 case AV_PIX_FMT_YUV420P:
177 case AV_PIX_FMT_YUV422P:
179 av_log(avctx, AV_LOG_ERROR, "Width must be even for this colorspace.\n");
182 s->bitstream_bpp = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 12 : 16;
184 case AV_PIX_FMT_RGB32:
185 s->bitstream_bpp = 32;
187 case AV_PIX_FMT_RGB24:
188 s->bitstream_bpp = 24;
191 av_log(avctx, AV_LOG_ERROR, "format not supported\n");
194 avctx->bits_per_coded_sample = s->bitstream_bpp;
195 s->decorrelate = s->bitstream_bpp >= 24;
196 #if FF_API_PRIVATE_OPT
197 FF_DISABLE_DEPRECATION_WARNINGS
198 if (avctx->prediction_method)
199 s->predictor = avctx->prediction_method;
200 FF_ENABLE_DEPRECATION_WARNINGS
202 s->interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_ME ? 1 : 0;
204 if (s->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) {
205 av_log(avctx, AV_LOG_ERROR,
206 "context=1 is not compatible with "
207 "2 pass huffyuv encoding\n");
212 if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) {
213 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
214 av_log(avctx, AV_LOG_ERROR,
215 "Error: YV12 is not supported by huffyuv; use "
216 "vcodec=ffvhuff or format=422p\n");
219 #if FF_API_PRIVATE_OPT
221 av_log(avctx, AV_LOG_ERROR,
222 "Error: per-frame huffman tables are not supported "
223 "by huffyuv; use vcodec=ffvhuff\n");
227 if (s->interlaced != ( s->height > 288 ))
228 av_log(avctx, AV_LOG_INFO,
229 "using huffyuv 2.2.0 or newer interlacing flag\n");
232 if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN) {
233 av_log(avctx, AV_LOG_ERROR,
234 "Error: RGB is incompatible with median predictor\n");
238 ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6);
239 ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp;
240 ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20;
242 ((uint8_t*)avctx->extradata)[2] |= 0x40;
243 ((uint8_t*)avctx->extradata)[3] = 0;
244 s->avctx->extradata_size = 4;
246 if (avctx->stats_in) {
247 char *p = avctx->stats_in;
249 for (i = 0; i < 3; i++)
250 for (j = 0; j < 256; j++)
254 for (i = 0; i < 3; i++) {
257 for (j = 0; j < 256; j++) {
258 s->stats[i][j] += strtol(p, &next, 0);
259 if (next == p) return -1;
263 if (p[0] == 0 || p[1] == 0 || p[2] == 0) break;
266 for (i = 0; i < 3; i++)
267 for (j = 0; j < 256; j++) {
268 int d = FFMIN(j, 256 - j);
270 s->stats[i][j] = 100000000 / (d + 1);
274 for (i = 0; i < 3; i++) {
275 ff_huff_gen_len_table(s->len[i], s->stats[i]);
277 if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0) {
281 s->avctx->extradata_size +=
282 store_table(s, s->len[i], &((uint8_t*)s->avctx->extradata)[s->avctx->extradata_size]);
286 for (i = 0; i < 3; i++) {
287 int pels = s->width * s->height / (i ? 40 : 10);
288 for (j = 0; j < 256; j++) {
289 int d = FFMIN(j, 256 - j);
290 s->stats[i][j] = pels/(d + 1);
294 for (i = 0; i < 3; i++)
295 for (j = 0; j < 256; j++)
299 ff_huffyuv_alloc_temp(s);
305 static int encode_422_bitstream(HYuvContext *s, int offset, int count)
308 const uint8_t *y = s->temp[0] + offset;
309 const uint8_t *u = s->temp[1] + offset / 2;
310 const uint8_t *v = s->temp[2] + offset / 2;
312 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) {
313 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
319 int y1 = y[2 * i + 1];\
325 if (s->flags & AV_CODEC_FLAG_PASS1) {
326 for(i = 0; i < count; i++) {
334 if (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)
337 for (i = 0; i < count; i++) {
340 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
342 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
344 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
346 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
349 for(i = 0; i < count; i++) {
351 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
352 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
353 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
354 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
360 static int encode_gray_bitstream(HYuvContext *s, int count)
364 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) {
365 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
370 int y0 = s->temp[0][2 * i];\
371 int y1 = s->temp[0][2 * i + 1];
376 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\
377 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
381 if (s->flags & AV_CODEC_FLAG_PASS1) {
382 for (i = 0; i < count; i++) {
387 if (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)
391 for (i = 0; i < count; i++) {
397 for (i = 0; i < count; i++) {
405 static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes)
409 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) <
410 4 * planes * count) {
411 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
416 int g = s->temp[0][planes == 3 ? 3 * i + 1 : 4 * i + G]; \
417 int b = s->temp[0][planes == 3 ? 3 * i + 2 : 4 * i + B] - g & 0xFF; \
418 int r = s->temp[0][planes == 3 ? 3 * i + 0 : 4 * i + R] - g & 0xFF; \
419 int a = s->temp[0][planes * i + A];
429 put_bits(&s->pb, s->len[1][g], s->bits[1][g]); \
430 put_bits(&s->pb, s->len[0][b], s->bits[0][b]); \
431 put_bits(&s->pb, s->len[2][r], s->bits[2][r]); \
433 put_bits(&s->pb, s->len[2][a], s->bits[2][a]);
435 if ((s->flags & AV_CODEC_FLAG_PASS1) &&
436 (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)) {
437 for (i = 0; i < count; i++) {
441 } else if (s->context || (s->flags & AV_CODEC_FLAG_PASS1)) {
442 for (i = 0; i < count; i++) {
448 for (i = 0; i < count; i++) {
456 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
457 const AVFrame *pict, int *got_packet)
459 HYuvContext *s = avctx->priv_data;
460 const int width = s->width;
461 const int width2 = s->width>>1;
462 const int height = s->height;
463 const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0];
464 const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1];
465 const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2];
466 const AVFrame * const p = pict;
467 int i, j, size = 0, ret;
470 (ret = av_new_packet(pkt, width * height * 3 * 4 + AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
471 av_log(avctx, AV_LOG_ERROR, "Error allocating output packet.\n");
476 for (i = 0; i < 3; i++) {
477 ff_huff_gen_len_table(s->len[i], s->stats[i]);
478 if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0)
480 size += store_table(s, s->len[i], &pkt->data[size]);
483 for (i = 0; i < 3; i++)
484 for (j = 0; j < 256; j++)
485 s->stats[i][j] >>= 1;
488 init_put_bits(&s->pb, pkt->data + size, pkt->size - size);
490 if (avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
491 avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
492 int lefty, leftu, leftv, y, cy;
494 put_bits(&s->pb, 8, leftv = p->data[2][0]);
495 put_bits(&s->pb, 8, lefty = p->data[0][1]);
496 put_bits(&s->pb, 8, leftu = p->data[1][0]);
497 put_bits(&s->pb, 8, p->data[0][0]);
499 lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0);
500 leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0);
501 leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0);
503 encode_422_bitstream(s, 2, width-2);
505 if (s->predictor==MEDIAN) {
506 int lefttopy, lefttopu, lefttopv;
509 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty);
510 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu);
511 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv);
513 encode_422_bitstream(s, 0, width);
517 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty);
518 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu);
519 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv);
521 encode_422_bitstream(s, 0, 4);
523 lefttopy = p->data[0][3];
524 lefttopu = p->data[1][1];
525 lefttopv = p->data[2][1];
526 s->hencdsp.sub_hfyu_median_pred(s->temp[0], p->data[0] + 4, p->data[0] + fake_ystride + 4, width - 4, &lefty, &lefttopy);
527 s->hencdsp.sub_hfyu_median_pred(s->temp[1], p->data[1] + 2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu);
528 s->hencdsp.sub_hfyu_median_pred(s->temp[2], p->data[2] + 2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv);
529 encode_422_bitstream(s, 0, width - 4);
532 for (; y < height; y++,cy++) {
533 uint8_t *ydst, *udst, *vdst;
535 if (s->bitstream_bpp == 12) {
537 ydst = p->data[0] + p->linesize[0] * y;
538 s->hencdsp.sub_hfyu_median_pred(s->temp[0], ydst - fake_ystride, ydst, width, &lefty, &lefttopy);
539 encode_gray_bitstream(s, width);
542 if (y >= height) break;
544 ydst = p->data[0] + p->linesize[0] * y;
545 udst = p->data[1] + p->linesize[1] * cy;
546 vdst = p->data[2] + p->linesize[2] * cy;
548 s->hencdsp.sub_hfyu_median_pred(s->temp[0], ydst - fake_ystride, ydst, width, &lefty, &lefttopy);
549 s->hencdsp.sub_hfyu_median_pred(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu);
550 s->hencdsp.sub_hfyu_median_pred(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv);
552 encode_422_bitstream(s, 0, width);
555 for (cy = y = 1; y < height; y++, cy++) {
556 uint8_t *ydst, *udst, *vdst;
558 /* encode a luma only line & y++ */
559 if (s->bitstream_bpp == 12) {
560 ydst = p->data[0] + p->linesize[0] * y;
562 if (s->predictor == PLANE && s->interlaced < y) {
563 s->hencdsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
565 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
567 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
569 encode_gray_bitstream(s, width);
571 if (y >= height) break;
574 ydst = p->data[0] + p->linesize[0] * y;
575 udst = p->data[1] + p->linesize[1] * cy;
576 vdst = p->data[2] + p->linesize[2] * cy;
578 if (s->predictor == PLANE && s->interlaced < cy) {
579 s->hencdsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
580 s->hencdsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2);
581 s->hencdsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2);
583 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
584 leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu);
585 leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv);
587 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
588 leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu);
589 leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv);
592 encode_422_bitstream(s, 0, width);
595 } else if(avctx->pix_fmt == AV_PIX_FMT_RGB32) {
596 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
597 const int stride = -p->linesize[0];
598 const int fake_stride = -fake_ystride;
600 int leftr, leftg, leftb, lefta;
602 put_bits(&s->pb, 8, lefta = data[A]);
603 put_bits(&s->pb, 8, leftr = data[R]);
604 put_bits(&s->pb, 8, leftg = data[G]);
605 put_bits(&s->pb, 8, leftb = data[B]);
607 sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1,
608 &leftr, &leftg, &leftb, &lefta);
609 encode_bgra_bitstream(s, width - 1, 4);
611 for (y = 1; y < s->height; y++) {
612 uint8_t *dst = data + y*stride;
613 if (s->predictor == PLANE && s->interlaced < y) {
614 s->hencdsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4);
615 sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width,
616 &leftr, &leftg, &leftb, &lefta);
618 sub_left_prediction_bgr32(s, s->temp[0], dst, width,
619 &leftr, &leftg, &leftb, &lefta);
621 encode_bgra_bitstream(s, width, 4);
623 } else if (avctx->pix_fmt == AV_PIX_FMT_RGB24) {
624 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
625 const int stride = -p->linesize[0];
626 const int fake_stride = -fake_ystride;
628 int leftr, leftg, leftb;
630 put_bits(&s->pb, 8, leftr = data[0]);
631 put_bits(&s->pb, 8, leftg = data[1]);
632 put_bits(&s->pb, 8, leftb = data[2]);
633 put_bits(&s->pb, 8, 0);
635 sub_left_prediction_rgb24(s, s->temp[0], data + 3, width - 1,
636 &leftr, &leftg, &leftb);
637 encode_bgra_bitstream(s, width-1, 3);
639 for (y = 1; y < s->height; y++) {
640 uint8_t *dst = data + y * stride;
641 if (s->predictor == PLANE && s->interlaced < y) {
642 s->hencdsp.diff_bytes(s->temp[1], dst, dst - fake_stride,
644 sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width,
645 &leftr, &leftg, &leftb);
647 sub_left_prediction_rgb24(s, s->temp[0], dst, width,
648 &leftr, &leftg, &leftb);
650 encode_bgra_bitstream(s, width, 3);
653 av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
657 size += (put_bits_count(&s->pb) + 31) / 8;
658 put_bits(&s->pb, 16, 0);
659 put_bits(&s->pb, 15, 0);
662 if ((s->flags & AV_CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) {
664 char *p = avctx->stats_out;
665 char *end = p + 1024*30;
666 for (i = 0; i < 3; i++) {
667 for (j = 0; j < 256; j++) {
668 snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]);
672 snprintf(p, end-p, "\n");
676 avctx->stats_out[0] = '\0';
677 if (!(s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)) {
678 flush_put_bits(&s->pb);
679 s->bdsp.bswap_buf((uint32_t *) pkt->data, (uint32_t *) pkt->data, size);
684 pkt->size = size * 4;
685 pkt->flags |= AV_PKT_FLAG_KEY;
691 static av_cold int encode_end(AVCodecContext *avctx)
693 HYuvContext *s = avctx->priv_data;
695 ff_huffyuv_common_end(s);
697 av_freep(&avctx->extradata);
698 av_freep(&avctx->stats_out);
703 #define OFFSET(x) offsetof(HYuvContext, x)
704 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
706 #define HUFF_CLASS(variant) \
707 static const AVClass variant ## _class = { \
708 .class_name = # variant, \
709 .item_name = av_default_item_name, \
710 .option = variant ## _options, \
711 .version = LIBAVUTIL_VERSION_INT, \
714 #define FF_HUFFYUV_COMMON_OPTS \
715 { "pred", "Prediction method", OFFSET(predictor), AV_OPT_TYPE_INT, { .i64 = LEFT }, LEFT, MEDIAN, VE, "pred" }, \
716 { "left", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LEFT }, INT_MIN, INT_MAX, VE, "pred" }, \
717 { "plane", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PLANE }, INT_MIN, INT_MAX, VE, "pred" }, \
718 { "median", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MEDIAN }, INT_MIN, INT_MAX, VE, "pred" }
720 static const AVOption huffyuv_options[] = {
721 FF_HUFFYUV_COMMON_OPTS,
727 AVCodec ff_huffyuv_encoder = {
729 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
730 .type = AVMEDIA_TYPE_VIDEO,
731 .id = AV_CODEC_ID_HUFFYUV,
732 .priv_data_size = sizeof(HYuvContext),
733 .priv_class = &huffyuv_class,
735 .encode2 = encode_frame,
737 .pix_fmts = (const enum AVPixelFormat[]){
738 AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24,
739 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
741 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
742 FF_CODEC_CAP_INIT_CLEANUP,
745 #if CONFIG_FFVHUFF_ENCODER
746 static const AVOption ffhuffyuv_options[] = {
747 FF_HUFFYUV_COMMON_OPTS,
748 { "context", "Set per-frame huffman tables", OFFSET(context), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
752 HUFF_CLASS(ffhuffyuv);
754 AVCodec ff_ffvhuff_encoder = {
756 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
757 .type = AVMEDIA_TYPE_VIDEO,
758 .id = AV_CODEC_ID_FFVHUFF,
759 .priv_data_size = sizeof(HYuvContext),
760 .priv_class = &ffhuffyuv_class,
762 .encode2 = encode_frame,
764 .pix_fmts = (const enum AVPixelFormat[]){
765 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24,
766 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
768 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
769 FF_CODEC_CAP_INIT_CLEANUP,