2 * Copyright (c) 2002-2014 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 FFmpeg.
9 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * yuva, gray, 4:4:4, 4:1:1, 4:1:0 and >8 bit per sample support sponsored by NOA
34 #include "huffyuvencdsp.h"
37 #include "libavutil/opt.h"
38 #include "libavutil/pixdesc.h"
40 static inline void diff_bytes(HYuvContext *s, uint8_t *dst,
41 const uint8_t *src0, const uint8_t *src1, int w)
44 s->hencdsp.diff_bytes(dst, src0, src1, w);
46 s->llviddsp.diff_int16((uint16_t *)dst, (const uint16_t *)src0, (const uint16_t *)src1, s->n - 1, w);
50 static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst,
51 const uint8_t *src, int w, int left)
56 for (i = 0; i < w; i++) {
57 const int temp = src[i];
63 for (i = 0; i < 16; i++) {
64 const int temp = src[i];
68 s->hencdsp.diff_bytes(dst + 16, src + 16, src + 15, w - 16);
72 const uint16_t *src16 = (const uint16_t *)src;
73 uint16_t *dst16 = ( uint16_t *)dst;
75 for (i = 0; i < w; i++) {
76 const int temp = src16[i];
77 dst16[i] = temp - left;
82 for (i = 0; i < 16; i++) {
83 const int temp = src16[i];
84 dst16[i] = temp - left;
87 s->llviddsp.diff_int16(dst16 + 16, src16 + 16, src16 + 15, s->n - 1, w - 16);
93 static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst,
94 const uint8_t *src, int w,
95 int *red, int *green, int *blue,
105 for (i = 0; i < FFMIN(w, 4); i++) {
106 const int rt = src[i * 4 + R];
107 const int gt = src[i * 4 + G];
108 const int bt = src[i * 4 + B];
109 const int at = src[i * 4 + A];
110 dst[i * 4 + R] = rt - r;
111 dst[i * 4 + G] = gt - g;
112 dst[i * 4 + B] = bt - b;
113 dst[i * 4 + A] = at - a;
120 s->hencdsp.diff_bytes(dst + 16, src + 16, src + 12, w * 4 - 16);
122 *red = src[(w - 1) * 4 + R];
123 *green = src[(w - 1) * 4 + G];
124 *blue = src[(w - 1) * 4 + B];
125 *alpha = src[(w - 1) * 4 + A];
128 static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst,
130 int *red, int *green, int *blue)
137 for (i = 0; i < FFMIN(w, 16); i++) {
138 const int rt = src[i * 3 + 0];
139 const int gt = src[i * 3 + 1];
140 const int bt = src[i * 3 + 2];
141 dst[i * 3 + 0] = rt - r;
142 dst[i * 3 + 1] = gt - g;
143 dst[i * 3 + 2] = bt - b;
149 s->hencdsp.diff_bytes(dst + 48, src + 48, src + 48 - 3, w * 3 - 48);
151 *red = src[(w - 1) * 3 + 0];
152 *green = src[(w - 1) * 3 + 1];
153 *blue = src[(w - 1) * 3 + 2];
156 static void sub_median_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w, int *left, int *left_top)
159 s->hencdsp.sub_hfyu_median_pred(dst, src1, src2, w , left, left_top);
161 s->llviddsp.sub_hfyu_median_pred_int16((uint16_t *)dst, (const uint16_t *)src1, (const uint16_t *)src2, s->n - 1, w , left, left_top);
165 static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf)
171 for (i = 0; i < n;) {
175 for (; i < n && len[i] == val && repeat < 255; i++)
178 av_assert0(val < 32 && val >0 && repeat < 256 && repeat>0);
181 buf[index++] = repeat;
183 buf[index++] = val | (repeat << 5);
190 static int store_huffman_tables(HYuvContext *s, uint8_t *buf)
197 count = 1 + s->alpha + 2*s->chroma;
199 for (i = 0; i < count; i++) {
200 if ((ret = ff_huff_gen_len_table(s->len[i], s->stats[i], s->vlc_n, 0)) < 0)
203 if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_n) < 0) {
207 size += store_table(s, s->len[i], buf + size);
212 static av_cold int encode_init(AVCodecContext *avctx)
214 HYuvContext *s = avctx->priv_data;
217 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
219 ff_huffyuv_common_init(avctx);
220 ff_huffyuvencdsp_init(&s->hencdsp);
222 avctx->extradata = av_mallocz(3*MAX_N + 4);
223 if (s->flags&AV_CODEC_FLAG_PASS1) {
224 #define STATS_OUT_SIZE 21*MAX_N*3 + 4
225 avctx->stats_out = av_mallocz(STATS_OUT_SIZE); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132
226 if (!avctx->stats_out)
227 return AVERROR(ENOMEM);
231 if (!avctx->extradata)
232 return AVERROR(ENOMEM);
234 #if FF_API_CODED_FRAME
235 FF_DISABLE_DEPRECATION_WARNINGS
236 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
237 avctx->coded_frame->key_frame = 1;
238 FF_ENABLE_DEPRECATION_WARNINGS
241 s->bps = desc->comp[0].depth_minus1 + 1;
242 s->yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components >= 2;
243 s->chroma = desc->nb_components > 2;
244 s->alpha = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
245 av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
249 switch (avctx->pix_fmt) {
250 case AV_PIX_FMT_YUV420P:
251 case AV_PIX_FMT_YUV422P:
253 av_log(avctx, AV_LOG_ERROR, "Width must be even for this colorspace.\n");
254 return AVERROR(EINVAL);
256 s->bitstream_bpp = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 12 : 16;
258 case AV_PIX_FMT_YUV444P:
259 case AV_PIX_FMT_YUV410P:
260 case AV_PIX_FMT_YUV411P:
261 case AV_PIX_FMT_YUV440P:
262 case AV_PIX_FMT_GBRP:
263 case AV_PIX_FMT_GBRP9:
264 case AV_PIX_FMT_GBRP10:
265 case AV_PIX_FMT_GBRP12:
266 case AV_PIX_FMT_GBRP14:
267 case AV_PIX_FMT_GBRP16:
268 case AV_PIX_FMT_GRAY8:
269 case AV_PIX_FMT_GRAY16:
270 case AV_PIX_FMT_YUVA444P:
271 case AV_PIX_FMT_YUVA420P:
272 case AV_PIX_FMT_YUVA422P:
273 case AV_PIX_FMT_GBRAP:
274 case AV_PIX_FMT_GRAY8A:
275 case AV_PIX_FMT_YUV420P9:
276 case AV_PIX_FMT_YUV420P10:
277 case AV_PIX_FMT_YUV420P12:
278 case AV_PIX_FMT_YUV420P14:
279 case AV_PIX_FMT_YUV420P16:
280 case AV_PIX_FMT_YUV422P9:
281 case AV_PIX_FMT_YUV422P10:
282 case AV_PIX_FMT_YUV422P12:
283 case AV_PIX_FMT_YUV422P14:
284 case AV_PIX_FMT_YUV422P16:
285 case AV_PIX_FMT_YUV444P9:
286 case AV_PIX_FMT_YUV444P10:
287 case AV_PIX_FMT_YUV444P12:
288 case AV_PIX_FMT_YUV444P14:
289 case AV_PIX_FMT_YUV444P16:
290 case AV_PIX_FMT_YUVA420P9:
291 case AV_PIX_FMT_YUVA420P10:
292 case AV_PIX_FMT_YUVA420P16:
293 case AV_PIX_FMT_YUVA422P9:
294 case AV_PIX_FMT_YUVA422P10:
295 case AV_PIX_FMT_YUVA422P16:
296 case AV_PIX_FMT_YUVA444P9:
297 case AV_PIX_FMT_YUVA444P10:
298 case AV_PIX_FMT_YUVA444P16:
301 case AV_PIX_FMT_RGB32:
302 s->bitstream_bpp = 32;
304 case AV_PIX_FMT_RGB24:
305 s->bitstream_bpp = 24;
308 av_log(avctx, AV_LOG_ERROR, "format not supported\n");
309 return AVERROR(EINVAL);
312 s->vlc_n = FFMIN(s->n, MAX_VLC_N);
314 avctx->bits_per_coded_sample = s->bitstream_bpp;
315 s->decorrelate = s->bitstream_bpp >= 24 && !s->yuv && !(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
316 s->predictor = avctx->prediction_method;
317 s->interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_ME ? 1 : 0;
318 if (avctx->context_model == 1) {
319 s->context = avctx->context_model;
320 if (s->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) {
321 av_log(avctx, AV_LOG_ERROR,
322 "context=1 is not compatible with "
323 "2 pass huffyuv encoding\n");
324 return AVERROR(EINVAL);
328 if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) {
329 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
330 av_log(avctx, AV_LOG_ERROR,
331 "Error: YV12 is not supported by huffyuv; use "
332 "vcodec=ffvhuff or format=422p\n");
333 return AVERROR(EINVAL);
335 if (avctx->context_model) {
336 av_log(avctx, AV_LOG_ERROR,
337 "Error: per-frame huffman tables are not supported "
338 "by huffyuv; use vcodec=ffvhuff\n");
339 return AVERROR(EINVAL);
341 if (s->version > 2) {
342 av_log(avctx, AV_LOG_ERROR,
343 "Error: ver>2 is not supported "
344 "by huffyuv; use vcodec=ffvhuff\n");
345 return AVERROR(EINVAL);
347 if (s->interlaced != ( s->height > 288 ))
348 av_log(avctx, AV_LOG_INFO,
349 "using huffyuv 2.2.0 or newer interlacing flag\n");
352 if (s->version > 3 && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
353 av_log(avctx, AV_LOG_ERROR, "Ver > 3 is under development, files encoded with it may not be decodable with future versions!!!\n"
354 "Use vstrict=-2 / -strict -2 to use it anyway.\n");
355 return AVERROR(EINVAL);
358 if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN && s->version <= 2) {
359 av_log(avctx, AV_LOG_ERROR,
360 "Error: RGB is incompatible with median predictor\n");
361 return AVERROR(EINVAL);
364 ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6);
365 ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20;
367 ((uint8_t*)avctx->extradata)[2] |= 0x40;
368 if (s->version < 3) {
369 ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp;
370 ((uint8_t*)avctx->extradata)[3] = 0;
372 ((uint8_t*)avctx->extradata)[1] = ((s->bps-1)<<4) | s->chroma_h_shift | (s->chroma_v_shift<<2);
374 ((uint8_t*)avctx->extradata)[2] |= s->yuv ? 1 : 2;
376 ((uint8_t*)avctx->extradata)[2] |= 4;
377 ((uint8_t*)avctx->extradata)[3] = 1;
379 s->avctx->extradata_size = 4;
381 if (avctx->stats_in) {
382 char *p = avctx->stats_in;
384 for (i = 0; i < 4; i++)
385 for (j = 0; j < s->vlc_n; j++)
389 for (i = 0; i < 4; i++) {
392 for (j = 0; j < s->vlc_n; j++) {
393 s->stats[i][j] += strtol(p, &next, 0);
394 if (next == p) return -1;
398 if (p[0] == 0 || p[1] == 0 || p[2] == 0) break;
401 for (i = 0; i < 4; i++)
402 for (j = 0; j < s->vlc_n; j++) {
403 int d = FFMIN(j, s->vlc_n - j);
405 s->stats[i][j] = 100000000 / (d*d + 1);
409 ret = store_huffman_tables(s, s->avctx->extradata + s->avctx->extradata_size);
412 s->avctx->extradata_size += ret;
415 for (i = 0; i < 4; i++) {
416 int pels = s->width * s->height / (i ? 40 : 10);
417 for (j = 0; j < s->vlc_n; j++) {
418 int d = FFMIN(j, s->vlc_n - j);
419 s->stats[i][j] = pels/(d*d + 1);
423 for (i = 0; i < 4; i++)
424 for (j = 0; j < s->vlc_n; j++)
428 if (ff_huffyuv_alloc_temp(s)) {
429 ff_huffyuv_common_end(s);
430 return AVERROR(ENOMEM);
437 static int encode_422_bitstream(HYuvContext *s, int offset, int count)
440 const uint8_t *y = s->temp[0] + offset;
441 const uint8_t *u = s->temp[1] + offset / 2;
442 const uint8_t *v = s->temp[2] + offset / 2;
444 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) {
445 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
451 int y1 = y[2 * i + 1];\
457 if (s->flags & AV_CODEC_FLAG_PASS1) {
458 for(i = 0; i < count; i++) {
466 if (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)
469 for (i = 0; i < count; i++) {
472 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
474 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
476 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
478 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
481 for(i = 0; i < count; i++) {
483 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
484 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
485 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
486 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
492 static int encode_plane_bitstream(HYuvContext *s, int width, int plane)
494 int i, count = width/2;
496 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < count * s->bps / 2) {
497 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
502 int y0 = s->temp[0][width-1];
504 int y0 = s->temp16[0][width-1] & mask;
506 int y0 = s->temp16[0][width-1];
508 s->stats[plane][y0]++;
510 s->stats[plane][y0>>2]++;
512 put_bits(&s->pb, s->len[plane][y0], s->bits[plane][y0]);
514 put_bits(&s->pb, s->len[plane][y0>>2], s->bits[plane][y0>>2]);\
515 put_bits(&s->pb, 2, y0&3);
518 int y0 = s->temp[0][2 * i];\
519 int y1 = s->temp[0][2 * i + 1];
521 int y0 = s->temp16[0][2 * i] & mask;\
522 int y1 = s->temp16[0][2 * i + 1] & mask;
524 int y0 = s->temp16[0][2 * i];\
525 int y1 = s->temp16[0][2 * i + 1];
527 s->stats[plane][y0]++;\
528 s->stats[plane][y1]++;
530 s->stats[plane][y0>>2]++;\
531 s->stats[plane][y1>>2]++;
533 put_bits(&s->pb, s->len[plane][y0], s->bits[plane][y0]);\
534 put_bits(&s->pb, s->len[plane][y1], s->bits[plane][y1]);
536 put_bits(&s->pb, s->len[plane][y0>>2], s->bits[plane][y0>>2]);\
537 put_bits(&s->pb, 2, y0&3);\
538 put_bits(&s->pb, s->len[plane][y1>>2], s->bits[plane][y1>>2]);\
539 put_bits(&s->pb, 2, y1&3);
542 if (s->flags & AV_CODEC_FLAG_PASS1) {
543 for (i = 0; i < count; i++) {
552 if (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)
556 for (i = 0; i < count; i++) {
567 for (i = 0; i < count; i++) {
576 } else if (s->bps <= 14) {
578 if (s->flags & AV_CODEC_FLAG_PASS1) {
579 for (i = 0; i < count; i++) {
588 if (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)
592 for (i = 0; i < count; i++) {
603 for (i = 0; i < count; i++) {
613 if (s->flags & AV_CODEC_FLAG_PASS1) {
614 for (i = 0; i < count; i++) {
623 if (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)
627 for (i = 0; i < count; i++) {
638 for (i = 0; i < count; i++) {
654 static int encode_gray_bitstream(HYuvContext *s, int count)
658 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) {
659 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
664 int y0 = s->temp[0][2 * i];\
665 int y1 = s->temp[0][2 * i + 1];
670 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\
671 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
675 if (s->flags & AV_CODEC_FLAG_PASS1) {
676 for (i = 0; i < count; i++) {
681 if (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)
685 for (i = 0; i < count; i++) {
691 for (i = 0; i < count; i++) {
699 static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes)
703 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) <
704 4 * planes * count) {
705 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
710 int g = s->temp[0][planes == 3 ? 3 * i + 1 : 4 * i + G]; \
711 int b =(s->temp[0][planes == 3 ? 3 * i + 2 : 4 * i + B] - g) & 0xFF;\
712 int r =(s->temp[0][planes == 3 ? 3 * i + 0 : 4 * i + R] - g) & 0xFF;\
713 int a = s->temp[0][planes * i + A];
723 put_bits(&s->pb, s->len[1][g], s->bits[1][g]); \
724 put_bits(&s->pb, s->len[0][b], s->bits[0][b]); \
725 put_bits(&s->pb, s->len[2][r], s->bits[2][r]); \
727 put_bits(&s->pb, s->len[2][a], s->bits[2][a]);
729 if ((s->flags & AV_CODEC_FLAG_PASS1) &&
730 (s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)) {
731 for (i = 0; i < count; i++) {
735 } else if (s->context || (s->flags & AV_CODEC_FLAG_PASS1)) {
736 for (i = 0; i < count; i++) {
742 for (i = 0; i < count; i++) {
750 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
751 const AVFrame *pict, int *got_packet)
753 HYuvContext *s = avctx->priv_data;
754 const int width = s->width;
755 const int width2 = s->width>>1;
756 const int height = s->height;
757 const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0];
758 const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1];
759 const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2];
760 const AVFrame * const p = pict;
761 int i, j, size = 0, ret;
763 if ((ret = ff_alloc_packet2(avctx, pkt, width * height * 3 * 4 + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
767 size = store_huffman_tables(s, pkt->data);
771 for (i = 0; i < 4; i++)
772 for (j = 0; j < s->vlc_n; j++)
773 s->stats[i][j] >>= 1;
776 init_put_bits(&s->pb, pkt->data + size, pkt->size - size);
778 if (avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
779 avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
780 int lefty, leftu, leftv, y, cy;
782 put_bits(&s->pb, 8, leftv = p->data[2][0]);
783 put_bits(&s->pb, 8, lefty = p->data[0][1]);
784 put_bits(&s->pb, 8, leftu = p->data[1][0]);
785 put_bits(&s->pb, 8, p->data[0][0]);
787 lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0);
788 leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0);
789 leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0);
791 encode_422_bitstream(s, 2, width-2);
793 if (s->predictor==MEDIAN) {
794 int lefttopy, lefttopu, lefttopv;
797 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty);
798 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu);
799 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv);
801 encode_422_bitstream(s, 0, width);
805 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty);
806 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu);
807 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv);
809 encode_422_bitstream(s, 0, 4);
811 lefttopy = p->data[0][3];
812 lefttopu = p->data[1][1];
813 lefttopv = p->data[2][1];
814 s->hencdsp.sub_hfyu_median_pred(s->temp[0], p->data[0] + 4, p->data[0] + fake_ystride + 4, width - 4, &lefty, &lefttopy);
815 s->hencdsp.sub_hfyu_median_pred(s->temp[1], p->data[1] + 2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu);
816 s->hencdsp.sub_hfyu_median_pred(s->temp[2], p->data[2] + 2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv);
817 encode_422_bitstream(s, 0, width - 4);
820 for (; y < height; y++,cy++) {
821 uint8_t *ydst, *udst, *vdst;
823 if (s->bitstream_bpp == 12) {
825 ydst = p->data[0] + p->linesize[0] * y;
826 s->hencdsp.sub_hfyu_median_pred(s->temp[0], ydst - fake_ystride, ydst, width, &lefty, &lefttopy);
827 encode_gray_bitstream(s, width);
830 if (y >= height) break;
832 ydst = p->data[0] + p->linesize[0] * y;
833 udst = p->data[1] + p->linesize[1] * cy;
834 vdst = p->data[2] + p->linesize[2] * cy;
836 s->hencdsp.sub_hfyu_median_pred(s->temp[0], ydst - fake_ystride, ydst, width, &lefty, &lefttopy);
837 s->hencdsp.sub_hfyu_median_pred(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu);
838 s->hencdsp.sub_hfyu_median_pred(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv);
840 encode_422_bitstream(s, 0, width);
843 for (cy = y = 1; y < height; y++, cy++) {
844 uint8_t *ydst, *udst, *vdst;
846 /* encode a luma only line & y++ */
847 if (s->bitstream_bpp == 12) {
848 ydst = p->data[0] + p->linesize[0] * y;
850 if (s->predictor == PLANE && s->interlaced < y) {
851 s->hencdsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
853 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
855 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
857 encode_gray_bitstream(s, width);
859 if (y >= height) break;
862 ydst = p->data[0] + p->linesize[0] * y;
863 udst = p->data[1] + p->linesize[1] * cy;
864 vdst = p->data[2] + p->linesize[2] * cy;
866 if (s->predictor == PLANE && s->interlaced < cy) {
867 s->hencdsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
868 s->hencdsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2);
869 s->hencdsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2);
871 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
872 leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu);
873 leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv);
875 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
876 leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu);
877 leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv);
880 encode_422_bitstream(s, 0, width);
883 } else if(avctx->pix_fmt == AV_PIX_FMT_RGB32) {
884 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
885 const int stride = -p->linesize[0];
886 const int fake_stride = -fake_ystride;
888 int leftr, leftg, leftb, lefta;
890 put_bits(&s->pb, 8, lefta = data[A]);
891 put_bits(&s->pb, 8, leftr = data[R]);
892 put_bits(&s->pb, 8, leftg = data[G]);
893 put_bits(&s->pb, 8, leftb = data[B]);
895 sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1,
896 &leftr, &leftg, &leftb, &lefta);
897 encode_bgra_bitstream(s, width - 1, 4);
899 for (y = 1; y < s->height; y++) {
900 uint8_t *dst = data + y*stride;
901 if (s->predictor == PLANE && s->interlaced < y) {
902 s->hencdsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4);
903 sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width,
904 &leftr, &leftg, &leftb, &lefta);
906 sub_left_prediction_bgr32(s, s->temp[0], dst, width,
907 &leftr, &leftg, &leftb, &lefta);
909 encode_bgra_bitstream(s, width, 4);
911 } else if (avctx->pix_fmt == AV_PIX_FMT_RGB24) {
912 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
913 const int stride = -p->linesize[0];
914 const int fake_stride = -fake_ystride;
916 int leftr, leftg, leftb;
918 put_bits(&s->pb, 8, leftr = data[0]);
919 put_bits(&s->pb, 8, leftg = data[1]);
920 put_bits(&s->pb, 8, leftb = data[2]);
921 put_bits(&s->pb, 8, 0);
923 sub_left_prediction_rgb24(s, s->temp[0], data + 3, width - 1,
924 &leftr, &leftg, &leftb);
925 encode_bgra_bitstream(s, width-1, 3);
927 for (y = 1; y < s->height; y++) {
928 uint8_t *dst = data + y * stride;
929 if (s->predictor == PLANE && s->interlaced < y) {
930 s->hencdsp.diff_bytes(s->temp[1], dst, dst - fake_stride,
932 sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width,
933 &leftr, &leftg, &leftb);
935 sub_left_prediction_rgb24(s, s->temp[0], dst, width,
936 &leftr, &leftg, &leftb);
938 encode_bgra_bitstream(s, width, 3);
940 } else if (s->version > 2) {
942 for (plane = 0; plane < 1 + 2*s->chroma + s->alpha; plane++) {
946 int fake_stride = fake_ystride;
948 if (s->chroma && (plane == 1 || plane == 2)) {
949 w >>= s->chroma_h_shift;
950 h >>= s->chroma_v_shift;
951 fake_stride = plane == 1 ? fake_ustride : fake_vstride;
954 left = sub_left_prediction(s, s->temp[0], p->data[plane], w , 0);
956 encode_plane_bitstream(s, w, plane);
958 if (s->predictor==MEDIAN) {
962 left = sub_left_prediction(s, s->temp[0], p->data[plane] + p->linesize[plane], w , left);
964 encode_plane_bitstream(s, w, plane);
968 lefttop = p->data[plane][0];
971 uint8_t *dst = p->data[plane] + p->linesize[plane] * y;
973 sub_median_prediction(s, s->temp[0], dst - fake_stride, dst, w , &left, &lefttop);
975 encode_plane_bitstream(s, w, plane);
978 for (y = 1; y < h; y++) {
979 uint8_t *dst = p->data[plane] + p->linesize[plane] * y;
981 if (s->predictor == PLANE && s->interlaced < y) {
982 diff_bytes(s, s->temp[1], dst, dst - fake_stride, w);
984 left = sub_left_prediction(s, s->temp[0], s->temp[1], w , left);
986 left = sub_left_prediction(s, s->temp[0], dst, w , left);
989 encode_plane_bitstream(s, w, plane);
994 av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
998 size += (put_bits_count(&s->pb) + 31) / 8;
999 put_bits(&s->pb, 16, 0);
1000 put_bits(&s->pb, 15, 0);
1003 if ((s->flags & AV_CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) {
1005 char *p = avctx->stats_out;
1006 char *end = p + STATS_OUT_SIZE;
1007 for (i = 0; i < 4; i++) {
1008 for (j = 0; j < s->vlc_n; j++) {
1009 snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]);
1013 snprintf(p, end-p, "\n");
1016 return AVERROR(ENOMEM);
1018 } else if (avctx->stats_out)
1019 avctx->stats_out[0] = '\0';
1020 if (!(s->avctx->flags2 & AV_CODEC_FLAG2_NO_OUTPUT)) {
1021 flush_put_bits(&s->pb);
1022 s->bdsp.bswap_buf((uint32_t *) pkt->data, (uint32_t *) pkt->data, size);
1025 s->picture_number++;
1027 pkt->size = size * 4;
1028 pkt->flags |= AV_PKT_FLAG_KEY;
1034 static av_cold int encode_end(AVCodecContext *avctx)
1036 HYuvContext *s = avctx->priv_data;
1038 ff_huffyuv_common_end(s);
1040 av_freep(&avctx->extradata);
1041 av_freep(&avctx->stats_out);
1046 static const AVOption options[] = {
1047 { "non_deterministic", "Allow multithreading for e.g. context=1 at the expense of determinism",
1048 offsetof(HYuvContext, non_determ), AV_OPT_TYPE_INT, { .i64 = 1 },
1049 0, 1, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
1053 static const AVClass normal_class = {
1054 .class_name = "huffyuv",
1055 .item_name = av_default_item_name,
1057 .version = LIBAVUTIL_VERSION_INT,
1060 static const AVClass ff_class = {
1061 .class_name = "ffvhuff",
1062 .item_name = av_default_item_name,
1064 .version = LIBAVUTIL_VERSION_INT,
1067 AVCodec ff_huffyuv_encoder = {
1069 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
1070 .type = AVMEDIA_TYPE_VIDEO,
1071 .id = AV_CODEC_ID_HUFFYUV,
1072 .priv_data_size = sizeof(HYuvContext),
1073 .init = encode_init,
1074 .encode2 = encode_frame,
1075 .close = encode_end,
1076 .capabilities = AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_INTRA_ONLY,
1077 .priv_class = &normal_class,
1078 .pix_fmts = (const enum AVPixelFormat[]){
1079 AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24,
1080 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
1082 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1083 FF_CODEC_CAP_INIT_CLEANUP,
1086 #if CONFIG_FFVHUFF_ENCODER
1087 AVCodec ff_ffvhuff_encoder = {
1089 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
1090 .type = AVMEDIA_TYPE_VIDEO,
1091 .id = AV_CODEC_ID_FFVHUFF,
1092 .priv_data_size = sizeof(HYuvContext),
1093 .init = encode_init,
1094 .encode2 = encode_frame,
1095 .close = encode_end,
1096 .capabilities = AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_INTRA_ONLY,
1097 .priv_class = &ff_class,
1098 .pix_fmts = (const enum AVPixelFormat[]){
1099 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV411P,
1100 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
1102 AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
1103 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16,
1104 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
1107 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV420P16,
1108 AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV422P16,
1109 AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV444P16,
1110 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
1111 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P16,
1112 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P16,
1114 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
1116 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1117 FF_CODEC_CAP_INIT_CLEANUP,