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 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
36 #include "libavutil/pixdesc.h"
38 static inline void diff_bytes(HYuvContext *s, uint8_t *dst,
39 const uint8_t *src0, const uint8_t *src1, int w)
42 s->dsp.diff_bytes(dst, src0, src1, w);
44 s->llviddsp.diff_int16((uint16_t *)dst, (const uint16_t *)src0, (const uint16_t *)src1, s->n - 1, w);
48 static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst,
49 const uint8_t *src, int w, int left)
54 for (i = 0; i < w; i++) {
55 const int temp = src[i];
61 for (i = 0; i < 16; i++) {
62 const int temp = src[i];
66 s->dsp.diff_bytes(dst + 16, src + 16, src + 15, w - 16);
70 const uint16_t *src16 = (const uint16_t *)src;
71 uint16_t *dst16 = ( uint16_t *)dst;
73 for (i = 0; i < w; i++) {
74 const int temp = src16[i];
75 dst16[i] = temp - left;
80 for (i = 0; i < 16; i++) {
81 const int temp = src16[i];
82 dst16[i] = temp - left;
85 s->llviddsp.diff_int16(dst16 + 16, src16 + 16, src16 + 15, s->n - 1, w - 16);
91 static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst,
92 const uint8_t *src, int w,
93 int *red, int *green, int *blue,
103 for (i = 0; i < FFMIN(w, 4); i++) {
104 const int rt = src[i * 4 + R];
105 const int gt = src[i * 4 + G];
106 const int bt = src[i * 4 + B];
107 const int at = src[i * 4 + A];
108 dst[i * 4 + R] = rt - r;
109 dst[i * 4 + G] = gt - g;
110 dst[i * 4 + B] = bt - b;
111 dst[i * 4 + A] = at - a;
118 s->dsp.diff_bytes(dst + 16, src + 16, src + 12, w * 4 - 16);
120 *red = src[(w - 1) * 4 + R];
121 *green = src[(w - 1) * 4 + G];
122 *blue = src[(w - 1) * 4 + B];
123 *alpha = src[(w - 1) * 4 + A];
126 static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst,
128 int *red, int *green, int *blue)
135 for (i = 0; i < FFMIN(w, 16); i++) {
136 const int rt = src[i * 3 + 0];
137 const int gt = src[i * 3 + 1];
138 const int bt = src[i * 3 + 2];
139 dst[i * 3 + 0] = rt - r;
140 dst[i * 3 + 1] = gt - g;
141 dst[i * 3 + 2] = bt - b;
147 s->dsp.diff_bytes(dst + 48, src + 48, src + 48 - 3, w * 3 - 48);
149 *red = src[(w - 1) * 3 + 0];
150 *green = src[(w - 1) * 3 + 1];
151 *blue = src[(w - 1) * 3 + 2];
154 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)
157 s->dsp.sub_hfyu_median_prediction(dst, src1, src2, w , left, left_top);
159 s->llviddsp.sub_hfyu_median_prediction_int16((uint16_t *)dst, (const uint16_t *)src1, (const uint16_t *)src2, s->n - 1, w , left, left_top);
163 static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf)
169 for (i = 0; i < n;) {
173 for (; i < n && len[i] == val && repeat < 255; i++)
176 av_assert0(val < 32 && val >0 && repeat < 256 && repeat>0);
179 buf[index++] = repeat;
181 buf[index++] = val | (repeat << 5);
188 static int store_huffman_tables(HYuvContext *s, uint8_t *buf)
195 count = 1 + s->alpha + 2*s->chroma;
197 for (i = 0; i < count; i++) {
198 if ((ret = ff_huff_gen_len_table(s->len[i], s->stats[i], s->n)) < 0)
201 if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->n) < 0) {
205 size += store_table(s, s->len[i], buf + size);
210 static av_cold int encode_init(AVCodecContext *avctx)
212 HYuvContext *s = avctx->priv_data;
215 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
217 ff_huffyuv_common_init(avctx);
219 avctx->extradata = av_mallocz(3*MAX_N + 4);
220 avctx->stats_out = av_mallocz(21*MAX_N*3 + 4); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132
221 if (!avctx->extradata || !avctx->stats_out) {
222 av_freep(&avctx->stats_out);
223 return AVERROR(ENOMEM);
227 avctx->coded_frame = av_frame_alloc();
228 if (!avctx->coded_frame)
229 return AVERROR(ENOMEM);
231 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
232 avctx->coded_frame->key_frame = 1;
234 s->bps = desc->comp[0].depth_minus1 + 1;
235 s->yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components >= 2;
236 s->chroma = desc->nb_components > 2;
237 s->alpha = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
238 av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
242 switch (avctx->pix_fmt) {
243 case AV_PIX_FMT_YUV420P:
244 case AV_PIX_FMT_YUV422P:
246 av_log(avctx, AV_LOG_ERROR, "Width must be even for this colorspace.\n");
247 return AVERROR(EINVAL);
249 s->bitstream_bpp = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 12 : 16;
251 case AV_PIX_FMT_YUV444P:
252 case AV_PIX_FMT_YUV410P:
253 case AV_PIX_FMT_YUV411P:
254 case AV_PIX_FMT_YUV440P:
255 case AV_PIX_FMT_GBRP:
256 case AV_PIX_FMT_GRAY8:
257 case AV_PIX_FMT_YUVA444P:
258 case AV_PIX_FMT_YUVA420P:
259 case AV_PIX_FMT_YUVA422P:
260 case AV_PIX_FMT_GBRAP:
261 case AV_PIX_FMT_GRAY8A:
262 case AV_PIX_FMT_YUV420P9:
263 case AV_PIX_FMT_YUV420P10:
264 case AV_PIX_FMT_YUV420P12:
265 case AV_PIX_FMT_YUV420P14:
266 case AV_PIX_FMT_YUV422P9:
267 case AV_PIX_FMT_YUV422P10:
268 case AV_PIX_FMT_YUV422P12:
269 case AV_PIX_FMT_YUV422P14:
270 case AV_PIX_FMT_YUV444P9:
271 case AV_PIX_FMT_YUV444P10:
272 case AV_PIX_FMT_YUV444P12:
273 case AV_PIX_FMT_YUV444P14:
274 case AV_PIX_FMT_YUVA420P9:
275 case AV_PIX_FMT_YUVA420P10:
276 case AV_PIX_FMT_YUVA422P9:
277 case AV_PIX_FMT_YUVA422P10:
278 case AV_PIX_FMT_YUVA444P9:
279 case AV_PIX_FMT_YUVA444P10:
282 case AV_PIX_FMT_RGB32:
283 s->bitstream_bpp = 32;
285 case AV_PIX_FMT_RGB24:
286 s->bitstream_bpp = 24;
289 av_log(avctx, AV_LOG_ERROR, "format not supported\n");
290 return AVERROR(EINVAL);
294 avctx->bits_per_coded_sample = s->bitstream_bpp;
295 s->decorrelate = s->bitstream_bpp >= 24 && !s->yuv && avctx->pix_fmt != AV_PIX_FMT_GBRP;
296 s->predictor = avctx->prediction_method;
297 s->interlaced = avctx->flags&CODEC_FLAG_INTERLACED_ME ? 1 : 0;
298 if (avctx->context_model == 1) {
299 s->context = avctx->context_model;
300 if (s->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) {
301 av_log(avctx, AV_LOG_ERROR,
302 "context=1 is not compatible with "
303 "2 pass huffyuv encoding\n");
304 return AVERROR(EINVAL);
308 if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) {
309 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
310 av_log(avctx, AV_LOG_ERROR,
311 "Error: YV12 is not supported by huffyuv; use "
312 "vcodec=ffvhuff or format=422p\n");
313 return AVERROR(EINVAL);
315 if (avctx->context_model) {
316 av_log(avctx, AV_LOG_ERROR,
317 "Error: per-frame huffman tables are not supported "
318 "by huffyuv; use vcodec=ffvhuff\n");
319 return AVERROR(EINVAL);
321 if (s->version > 2) {
322 av_log(avctx, AV_LOG_ERROR,
323 "Error: ver>2 is not supported "
324 "by huffyuv; use vcodec=ffvhuff\n");
325 return AVERROR(EINVAL);
327 if (s->interlaced != ( s->height > 288 ))
328 av_log(avctx, AV_LOG_INFO,
329 "using huffyuv 2.2.0 or newer interlacing flag\n");
332 if (s->version > 2 && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
333 av_log(avctx, AV_LOG_ERROR, "Ver > 2 is under development, files encoded with it may not be decodable with future versions!!!\n"
334 "Use vstrict=-2 / -strict -2 to use it anyway.\n");
335 return AVERROR(EINVAL);
338 if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN) {
339 av_log(avctx, AV_LOG_ERROR,
340 "Error: RGB is incompatible with median predictor\n");
341 return AVERROR(EINVAL);
344 ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6);
345 ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20;
347 ((uint8_t*)avctx->extradata)[2] |= 0x40;
348 if (s->version < 3) {
349 ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp;
350 ((uint8_t*)avctx->extradata)[3] = 0;
352 ((uint8_t*)avctx->extradata)[1] = ((s->bps-1)<<4) | s->chroma_h_shift | (s->chroma_v_shift<<2);
354 ((uint8_t*)avctx->extradata)[2] |= s->yuv ? 1 : 2;
356 ((uint8_t*)avctx->extradata)[2] |= 4;
357 ((uint8_t*)avctx->extradata)[3] = 1;
359 s->avctx->extradata_size = 4;
361 if (avctx->stats_in) {
362 char *p = avctx->stats_in;
364 for (i = 0; i < 4; i++)
365 for (j = 0; j < s->n; j++)
369 for (i = 0; i < 4; i++) {
372 for (j = 0; j < s->n; j++) {
373 s->stats[i][j] += strtol(p, &next, 0);
374 if (next == p) return -1;
378 if (p[0] == 0 || p[1] == 0 || p[2] == 0) break;
381 for (i = 0; i < 4; i++)
382 for (j = 0; j < s->n; j++) {
383 int d = FFMIN(j, s->n - j);
385 s->stats[i][j] = 100000000 / (d + 1);
389 ret = store_huffman_tables(s, s->avctx->extradata + s->avctx->extradata_size);
392 s->avctx->extradata_size += ret;
395 for (i = 0; i < 4; i++) {
396 int pels = s->width * s->height / (i ? 40 : 10);
397 for (j = 0; j < s->n; j++) {
398 int d = FFMIN(j, s->n - j);
399 s->stats[i][j] = pels/(d + 1);
403 for (i = 0; i < 4; i++)
404 for (j = 0; j < s->n; j++)
408 if (ff_huffyuv_alloc_temp(s)) {
409 ff_huffyuv_common_end(s);
410 return AVERROR(ENOMEM);
417 static int encode_422_bitstream(HYuvContext *s, int offset, int count)
420 const uint8_t *y = s->temp[0] + offset;
421 const uint8_t *u = s->temp[1] + offset / 2;
422 const uint8_t *v = s->temp[2] + offset / 2;
424 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) {
425 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
431 int y1 = y[2 * i + 1];\
437 if (s->flags & CODEC_FLAG_PASS1) {
438 for(i = 0; i < count; i++) {
446 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
449 for (i = 0; i < count; i++) {
452 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
454 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
456 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
458 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
461 for(i = 0; i < count; i++) {
463 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
464 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
465 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
466 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
472 static int encode_plane_bitstream(HYuvContext *s, int count, int plane)
476 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < count * s->bps / 2) {
477 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
482 int y0 = s->temp[0][2 * i];\
483 int y1 = s->temp[0][2 * i + 1];
485 int y0 = s->temp16[0][2 * i] & mask;\
486 int y1 = s->temp16[0][2 * i + 1] & mask;
488 s->stats[plane][y0]++;\
489 s->stats[plane][y1]++;
491 put_bits(&s->pb, s->len[plane][y0], s->bits[plane][y0]);\
492 put_bits(&s->pb, s->len[plane][y1], s->bits[plane][y1]);
497 if (s->flags & CODEC_FLAG_PASS1) {
498 for (i = 0; i < count; i++) {
503 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
507 for (i = 0; i < count; i++) {
513 for (i = 0; i < count; i++) {
520 if (s->flags & CODEC_FLAG_PASS1) {
521 for (i = 0; i < count; i++) {
526 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
530 for (i = 0; i < count; i++) {
536 for (i = 0; i < count; i++) {
548 static int encode_gray_bitstream(HYuvContext *s, int count)
552 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) {
553 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
558 int y0 = s->temp[0][2 * i];\
559 int y1 = s->temp[0][2 * i + 1];
564 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\
565 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
569 if (s->flags & CODEC_FLAG_PASS1) {
570 for (i = 0; i < count; i++) {
575 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
579 for (i = 0; i < count; i++) {
585 for (i = 0; i < count; i++) {
593 static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes)
597 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) <
598 4 * planes * count) {
599 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
604 int g = s->temp[0][planes == 3 ? 3 * i + 1 : 4 * i + G]; \
605 int b =(s->temp[0][planes == 3 ? 3 * i + 2 : 4 * i + B] - g) & 0xFF;\
606 int r =(s->temp[0][planes == 3 ? 3 * i + 0 : 4 * i + R] - g) & 0xFF;\
607 int a = s->temp[0][planes * i + A];
617 put_bits(&s->pb, s->len[1][g], s->bits[1][g]); \
618 put_bits(&s->pb, s->len[0][b], s->bits[0][b]); \
619 put_bits(&s->pb, s->len[2][r], s->bits[2][r]); \
621 put_bits(&s->pb, s->len[2][a], s->bits[2][a]);
623 if ((s->flags & CODEC_FLAG_PASS1) &&
624 (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) {
625 for (i = 0; i < count; i++) {
629 } else if (s->context || (s->flags & CODEC_FLAG_PASS1)) {
630 for (i = 0; i < count; i++) {
636 for (i = 0; i < count; i++) {
644 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
645 const AVFrame *pict, int *got_packet)
647 HYuvContext *s = avctx->priv_data;
648 const int width = s->width;
649 const int width2 = s->width>>1;
650 const int height = s->height;
651 const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0];
652 const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1];
653 const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2];
654 const AVFrame * const p = pict;
655 int i, j, size = 0, ret;
657 if ((ret = ff_alloc_packet2(avctx, pkt, width * height * 3 * 4 + FF_MIN_BUFFER_SIZE)) < 0)
661 size = store_huffman_tables(s, pkt->data);
665 for (i = 0; i < 4; i++)
666 for (j = 0; j < s->n; j++)
667 s->stats[i][j] >>= 1;
670 init_put_bits(&s->pb, pkt->data + size, pkt->size - size);
672 if (avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
673 avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
674 int lefty, leftu, leftv, y, cy;
676 put_bits(&s->pb, 8, leftv = p->data[2][0]);
677 put_bits(&s->pb, 8, lefty = p->data[0][1]);
678 put_bits(&s->pb, 8, leftu = p->data[1][0]);
679 put_bits(&s->pb, 8, p->data[0][0]);
681 lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0);
682 leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0);
683 leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0);
685 encode_422_bitstream(s, 2, width-2);
687 if (s->predictor==MEDIAN) {
688 int lefttopy, lefttopu, lefttopv;
691 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty);
692 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu);
693 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv);
695 encode_422_bitstream(s, 0, width);
699 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty);
700 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu);
701 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv);
703 encode_422_bitstream(s, 0, 4);
705 lefttopy = p->data[0][3];
706 lefttopu = p->data[1][1];
707 lefttopv = p->data[2][1];
708 s->dsp.sub_hfyu_median_prediction(s->temp[0], p->data[0]+4, p->data[0] + fake_ystride + 4, width - 4 , &lefty, &lefttopy);
709 s->dsp.sub_hfyu_median_prediction(s->temp[1], p->data[1]+2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu);
710 s->dsp.sub_hfyu_median_prediction(s->temp[2], p->data[2]+2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv);
711 encode_422_bitstream(s, 0, width - 4);
714 for (; y < height; y++,cy++) {
715 uint8_t *ydst, *udst, *vdst;
717 if (s->bitstream_bpp == 12) {
719 ydst = p->data[0] + p->linesize[0] * y;
720 s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
721 encode_gray_bitstream(s, width);
724 if (y >= height) break;
726 ydst = p->data[0] + p->linesize[0] * y;
727 udst = p->data[1] + p->linesize[1] * cy;
728 vdst = p->data[2] + p->linesize[2] * cy;
730 s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
731 s->dsp.sub_hfyu_median_prediction(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu);
732 s->dsp.sub_hfyu_median_prediction(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv);
734 encode_422_bitstream(s, 0, width);
737 for (cy = y = 1; y < height; y++, cy++) {
738 uint8_t *ydst, *udst, *vdst;
740 /* encode a luma only line & y++ */
741 if (s->bitstream_bpp == 12) {
742 ydst = p->data[0] + p->linesize[0] * y;
744 if (s->predictor == PLANE && s->interlaced < y) {
745 s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
747 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
749 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
751 encode_gray_bitstream(s, width);
753 if (y >= height) break;
756 ydst = p->data[0] + p->linesize[0] * y;
757 udst = p->data[1] + p->linesize[1] * cy;
758 vdst = p->data[2] + p->linesize[2] * cy;
760 if (s->predictor == PLANE && s->interlaced < cy) {
761 s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
762 s->dsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2);
763 s->dsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2);
765 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
766 leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu);
767 leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv);
769 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
770 leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu);
771 leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv);
774 encode_422_bitstream(s, 0, width);
777 } else if(avctx->pix_fmt == AV_PIX_FMT_RGB32) {
778 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
779 const int stride = -p->linesize[0];
780 const int fake_stride = -fake_ystride;
782 int leftr, leftg, leftb, lefta;
784 put_bits(&s->pb, 8, lefta = data[A]);
785 put_bits(&s->pb, 8, leftr = data[R]);
786 put_bits(&s->pb, 8, leftg = data[G]);
787 put_bits(&s->pb, 8, leftb = data[B]);
789 sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1,
790 &leftr, &leftg, &leftb, &lefta);
791 encode_bgra_bitstream(s, width - 1, 4);
793 for (y = 1; y < s->height; y++) {
794 uint8_t *dst = data + y*stride;
795 if (s->predictor == PLANE && s->interlaced < y) {
796 s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4);
797 sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width,
798 &leftr, &leftg, &leftb, &lefta);
800 sub_left_prediction_bgr32(s, s->temp[0], dst, width,
801 &leftr, &leftg, &leftb, &lefta);
803 encode_bgra_bitstream(s, width, 4);
805 } else if (avctx->pix_fmt == AV_PIX_FMT_RGB24) {
806 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
807 const int stride = -p->linesize[0];
808 const int fake_stride = -fake_ystride;
810 int leftr, leftg, leftb;
812 put_bits(&s->pb, 8, leftr = data[0]);
813 put_bits(&s->pb, 8, leftg = data[1]);
814 put_bits(&s->pb, 8, leftb = data[2]);
815 put_bits(&s->pb, 8, 0);
817 sub_left_prediction_rgb24(s, s->temp[0], data + 3, width - 1,
818 &leftr, &leftg, &leftb);
819 encode_bgra_bitstream(s, width-1, 3);
821 for (y = 1; y < s->height; y++) {
822 uint8_t *dst = data + y * stride;
823 if (s->predictor == PLANE && s->interlaced < y) {
824 s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride,
826 sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width,
827 &leftr, &leftg, &leftb);
829 sub_left_prediction_rgb24(s, s->temp[0], dst, width,
830 &leftr, &leftg, &leftb);
832 encode_bgra_bitstream(s, width, 3);
834 } else if (s->version > 2) {
836 for (plane = 0; plane < 1 + 2*s->chroma + s->alpha; plane++) {
840 int fake_stride = fake_ystride;
842 if (s->chroma && (plane == 1 || plane == 2)) {
843 w >>= s->chroma_h_shift;
844 h >>= s->chroma_v_shift;
845 fake_stride = plane == 1 ? fake_ustride : fake_vstride;
848 left = sub_left_prediction(s, s->temp[0], p->data[plane], w , 0);
850 encode_plane_bitstream(s, w, plane);
852 if (s->predictor==MEDIAN) {
856 left = sub_left_prediction(s, s->temp[0], p->data[plane] + p->linesize[plane], w , left);
858 encode_plane_bitstream(s, w, plane);
862 lefttop = p->data[plane][0];
865 uint8_t *dst = p->data[plane] + p->linesize[plane] * y;
867 sub_median_prediction(s, s->temp[0], dst - fake_stride, dst, w , &left, &lefttop);
869 encode_plane_bitstream(s, w, plane);
872 for (y = 1; y < h; y++) {
873 uint8_t *dst = p->data[plane] + p->linesize[plane] * y;
875 if (s->predictor == PLANE && s->interlaced < y) {
876 diff_bytes(s, s->temp[1], dst, dst - fake_stride, w);
878 left = sub_left_prediction(s, s->temp[0], s->temp[1], w , left);
880 left = sub_left_prediction(s, s->temp[0], dst, w , left);
883 encode_plane_bitstream(s, w, plane);
888 av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
892 size += (put_bits_count(&s->pb) + 31) / 8;
893 put_bits(&s->pb, 16, 0);
894 put_bits(&s->pb, 15, 0);
897 if ((s->flags&CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) {
899 char *p = avctx->stats_out;
900 char *end = p + 1024*30;
901 for (i = 0; i < 4; i++) {
902 for (j = 0; j < s->n; j++) {
903 snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]);
907 snprintf(p, end-p, "\n");
911 avctx->stats_out[0] = '\0';
912 if (!(s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) {
913 flush_put_bits(&s->pb);
914 s->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size);
919 pkt->size = size * 4;
920 pkt->flags |= AV_PKT_FLAG_KEY;
926 static av_cold int encode_end(AVCodecContext *avctx)
928 HYuvContext *s = avctx->priv_data;
930 ff_huffyuv_common_end(s);
932 av_freep(&avctx->extradata);
933 av_freep(&avctx->stats_out);
935 av_frame_free(&avctx->coded_frame);
940 #if CONFIG_HUFFYUV_ENCODER
941 AVCodec ff_huffyuv_encoder = {
943 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
944 .type = AVMEDIA_TYPE_VIDEO,
945 .id = AV_CODEC_ID_HUFFYUV,
946 .priv_data_size = sizeof(HYuvContext),
948 .encode2 = encode_frame,
950 .pix_fmts = (const enum AVPixelFormat[]){
951 AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24,
952 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
957 #if CONFIG_FFVHUFF_ENCODER
958 AVCodec ff_ffvhuff_encoder = {
960 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
961 .type = AVMEDIA_TYPE_VIDEO,
962 .id = AV_CODEC_ID_FFVHUFF,
963 .priv_data_size = sizeof(HYuvContext),
965 .encode2 = encode_frame,
967 .pix_fmts = (const enum AVPixelFormat[]){
968 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV411P,
969 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
972 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
975 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14,
976 AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14,
977 AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
978 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10,
979 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10,
980 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10,
982 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE