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
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->vlc_n)) < 0)
201 if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_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 if (!avctx->extradata)
221 return AVERROR(ENOMEM);
222 if (s->flags&CODEC_FLAG_PASS1) {
223 #define STATS_OUT_SIZE 21*MAX_N*3 + 4
224 avctx->stats_out = av_mallocz(STATS_OUT_SIZE); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132
225 if (!avctx->stats_out)
226 return AVERROR(ENOMEM);
230 avctx->coded_frame = av_frame_alloc();
231 if (!avctx->coded_frame)
232 return AVERROR(ENOMEM);
234 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
235 avctx->coded_frame->key_frame = 1;
237 s->bps = desc->comp[0].depth_minus1 + 1;
238 s->yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components >= 2;
239 s->chroma = desc->nb_components > 2;
240 s->alpha = !!(desc->flags & AV_PIX_FMT_FLAG_ALPHA);
241 av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
245 switch (avctx->pix_fmt) {
246 case AV_PIX_FMT_YUV420P:
247 case AV_PIX_FMT_YUV422P:
249 av_log(avctx, AV_LOG_ERROR, "Width must be even for this colorspace.\n");
250 return AVERROR(EINVAL);
252 s->bitstream_bpp = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 12 : 16;
254 case AV_PIX_FMT_YUV444P:
255 case AV_PIX_FMT_YUV410P:
256 case AV_PIX_FMT_YUV411P:
257 case AV_PIX_FMT_YUV440P:
258 case AV_PIX_FMT_GBRP:
259 case AV_PIX_FMT_GBRP9:
260 case AV_PIX_FMT_GBRP10:
261 case AV_PIX_FMT_GBRP12:
262 case AV_PIX_FMT_GBRP14:
263 case AV_PIX_FMT_GBRP16:
264 case AV_PIX_FMT_GRAY8:
265 case AV_PIX_FMT_GRAY16:
266 case AV_PIX_FMT_YUVA444P:
267 case AV_PIX_FMT_YUVA420P:
268 case AV_PIX_FMT_YUVA422P:
269 case AV_PIX_FMT_GBRAP:
270 case AV_PIX_FMT_GRAY8A:
271 case AV_PIX_FMT_YUV420P9:
272 case AV_PIX_FMT_YUV420P10:
273 case AV_PIX_FMT_YUV420P12:
274 case AV_PIX_FMT_YUV420P14:
275 case AV_PIX_FMT_YUV420P16:
276 case AV_PIX_FMT_YUV422P9:
277 case AV_PIX_FMT_YUV422P10:
278 case AV_PIX_FMT_YUV422P12:
279 case AV_PIX_FMT_YUV422P14:
280 case AV_PIX_FMT_YUV422P16:
281 case AV_PIX_FMT_YUV444P9:
282 case AV_PIX_FMT_YUV444P10:
283 case AV_PIX_FMT_YUV444P12:
284 case AV_PIX_FMT_YUV444P14:
285 case AV_PIX_FMT_YUV444P16:
286 case AV_PIX_FMT_YUVA420P9:
287 case AV_PIX_FMT_YUVA420P10:
288 case AV_PIX_FMT_YUVA420P16:
289 case AV_PIX_FMT_YUVA422P9:
290 case AV_PIX_FMT_YUVA422P10:
291 case AV_PIX_FMT_YUVA422P16:
292 case AV_PIX_FMT_YUVA444P9:
293 case AV_PIX_FMT_YUVA444P10:
294 case AV_PIX_FMT_YUVA444P16:
297 case AV_PIX_FMT_RGB32:
298 s->bitstream_bpp = 32;
300 case AV_PIX_FMT_RGB24:
301 s->bitstream_bpp = 24;
304 av_log(avctx, AV_LOG_ERROR, "format not supported\n");
305 return AVERROR(EINVAL);
308 s->vlc_n = FFMIN(s->n, MAX_VLC_N);
310 avctx->bits_per_coded_sample = s->bitstream_bpp;
311 s->decorrelate = s->bitstream_bpp >= 24 && !s->yuv && !(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
312 s->predictor = avctx->prediction_method;
313 s->interlaced = avctx->flags&CODEC_FLAG_INTERLACED_ME ? 1 : 0;
314 if (avctx->context_model == 1) {
315 s->context = avctx->context_model;
316 if (s->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) {
317 av_log(avctx, AV_LOG_ERROR,
318 "context=1 is not compatible with "
319 "2 pass huffyuv encoding\n");
320 return AVERROR(EINVAL);
324 if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) {
325 if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
326 av_log(avctx, AV_LOG_ERROR,
327 "Error: YV12 is not supported by huffyuv; use "
328 "vcodec=ffvhuff or format=422p\n");
329 return AVERROR(EINVAL);
331 if (avctx->context_model) {
332 av_log(avctx, AV_LOG_ERROR,
333 "Error: per-frame huffman tables are not supported "
334 "by huffyuv; use vcodec=ffvhuff\n");
335 return AVERROR(EINVAL);
337 if (s->version > 2) {
338 av_log(avctx, AV_LOG_ERROR,
339 "Error: ver>2 is not supported "
340 "by huffyuv; use vcodec=ffvhuff\n");
341 return AVERROR(EINVAL);
343 if (s->interlaced != ( s->height > 288 ))
344 av_log(avctx, AV_LOG_INFO,
345 "using huffyuv 2.2.0 or newer interlacing flag\n");
348 if (s->version > 2 && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
349 av_log(avctx, AV_LOG_ERROR, "Ver > 2 is under development, files encoded with it may not be decodable with future versions!!!\n"
350 "Use vstrict=-2 / -strict -2 to use it anyway.\n");
351 return AVERROR(EINVAL);
354 if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN && s->version <= 2) {
355 av_log(avctx, AV_LOG_ERROR,
356 "Error: RGB is incompatible with median predictor\n");
357 return AVERROR(EINVAL);
360 ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6);
361 ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20;
363 ((uint8_t*)avctx->extradata)[2] |= 0x40;
364 if (s->version < 3) {
365 ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp;
366 ((uint8_t*)avctx->extradata)[3] = 0;
368 ((uint8_t*)avctx->extradata)[1] = ((s->bps-1)<<4) | s->chroma_h_shift | (s->chroma_v_shift<<2);
370 ((uint8_t*)avctx->extradata)[2] |= s->yuv ? 1 : 2;
372 ((uint8_t*)avctx->extradata)[2] |= 4;
373 ((uint8_t*)avctx->extradata)[3] = 1;
375 s->avctx->extradata_size = 4;
377 if (avctx->stats_in) {
378 char *p = avctx->stats_in;
380 for (i = 0; i < 4; i++)
381 for (j = 0; j < s->vlc_n; j++)
385 for (i = 0; i < 4; i++) {
388 for (j = 0; j < s->vlc_n; j++) {
389 s->stats[i][j] += strtol(p, &next, 0);
390 if (next == p) return -1;
394 if (p[0] == 0 || p[1] == 0 || p[2] == 0) break;
397 for (i = 0; i < 4; i++)
398 for (j = 0; j < s->vlc_n; j++) {
399 int d = FFMIN(j, s->vlc_n - j);
401 s->stats[i][j] = 100000000 / (d + 1);
405 ret = store_huffman_tables(s, s->avctx->extradata + s->avctx->extradata_size);
408 s->avctx->extradata_size += ret;
411 for (i = 0; i < 4; i++) {
412 int pels = s->width * s->height / (i ? 40 : 10);
413 for (j = 0; j < s->vlc_n; j++) {
414 int d = FFMIN(j, s->vlc_n - j);
415 s->stats[i][j] = pels/(d + 1);
419 for (i = 0; i < 4; i++)
420 for (j = 0; j < s->vlc_n; j++)
424 if (ff_huffyuv_alloc_temp(s)) {
425 ff_huffyuv_common_end(s);
426 return AVERROR(ENOMEM);
433 static int encode_422_bitstream(HYuvContext *s, int offset, int count)
436 const uint8_t *y = s->temp[0] + offset;
437 const uint8_t *u = s->temp[1] + offset / 2;
438 const uint8_t *v = s->temp[2] + offset / 2;
440 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) {
441 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
447 int y1 = y[2 * i + 1];\
453 if (s->flags & CODEC_FLAG_PASS1) {
454 for(i = 0; i < count; i++) {
462 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
465 for (i = 0; i < count; i++) {
468 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
470 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
472 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
474 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
477 for(i = 0; i < count; i++) {
479 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
480 put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
481 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
482 put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
488 static int encode_plane_bitstream(HYuvContext *s, int count, int plane)
492 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < count * s->bps / 2) {
493 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
498 int y0 = s->temp[0][2 * i];\
499 int y1 = s->temp[0][2 * i + 1];
501 int y0 = s->temp16[0][2 * i] & mask;\
502 int y1 = s->temp16[0][2 * i + 1] & mask;
504 int y0 = s->temp16[0][2 * i];\
505 int y1 = s->temp16[0][2 * i + 1];
507 s->stats[plane][y0]++;\
508 s->stats[plane][y1]++;
510 s->stats[plane][y0>>2]++;\
511 s->stats[plane][y1>>2]++;
513 put_bits(&s->pb, s->len[plane][y0], s->bits[plane][y0]);\
514 put_bits(&s->pb, s->len[plane][y1], s->bits[plane][y1]);
516 put_bits(&s->pb, s->len[plane][y0>>2], s->bits[plane][y0>>2]);\
517 put_bits(&s->pb, 2, y0&3);\
518 put_bits(&s->pb, s->len[plane][y1>>2], s->bits[plane][y1>>2]);\
519 put_bits(&s->pb, 2, y1&3);
524 if (s->flags & CODEC_FLAG_PASS1) {
525 for (i = 0; i < count; i++) {
530 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
534 for (i = 0; i < count; i++) {
540 for (i = 0; i < count; i++) {
545 } else if (s->bps <= 14) {
547 if (s->flags & CODEC_FLAG_PASS1) {
548 for (i = 0; i < count; i++) {
553 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
557 for (i = 0; i < count; i++) {
563 for (i = 0; i < count; i++) {
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++) {
597 static int encode_gray_bitstream(HYuvContext *s, int count)
601 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) {
602 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
607 int y0 = s->temp[0][2 * i];\
608 int y1 = s->temp[0][2 * i + 1];
613 put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\
614 put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
618 if (s->flags & CODEC_FLAG_PASS1) {
619 for (i = 0; i < count; i++) {
624 if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
628 for (i = 0; i < count; i++) {
634 for (i = 0; i < count; i++) {
642 static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes)
646 if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) <
647 4 * planes * count) {
648 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
653 int g = s->temp[0][planes == 3 ? 3 * i + 1 : 4 * i + G]; \
654 int b =(s->temp[0][planes == 3 ? 3 * i + 2 : 4 * i + B] - g) & 0xFF;\
655 int r =(s->temp[0][planes == 3 ? 3 * i + 0 : 4 * i + R] - g) & 0xFF;\
656 int a = s->temp[0][planes * i + A];
666 put_bits(&s->pb, s->len[1][g], s->bits[1][g]); \
667 put_bits(&s->pb, s->len[0][b], s->bits[0][b]); \
668 put_bits(&s->pb, s->len[2][r], s->bits[2][r]); \
670 put_bits(&s->pb, s->len[2][a], s->bits[2][a]);
672 if ((s->flags & CODEC_FLAG_PASS1) &&
673 (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) {
674 for (i = 0; i < count; i++) {
678 } else if (s->context || (s->flags & CODEC_FLAG_PASS1)) {
679 for (i = 0; i < count; i++) {
685 for (i = 0; i < count; i++) {
693 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
694 const AVFrame *pict, int *got_packet)
696 HYuvContext *s = avctx->priv_data;
697 const int width = s->width;
698 const int width2 = s->width>>1;
699 const int height = s->height;
700 const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0];
701 const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1];
702 const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2];
703 const AVFrame * const p = pict;
704 int i, j, size = 0, ret;
706 if ((ret = ff_alloc_packet2(avctx, pkt, width * height * 3 * 4 + FF_MIN_BUFFER_SIZE)) < 0)
710 size = store_huffman_tables(s, pkt->data);
714 for (i = 0; i < 4; i++)
715 for (j = 0; j < s->vlc_n; j++)
716 s->stats[i][j] >>= 1;
719 init_put_bits(&s->pb, pkt->data + size, pkt->size - size);
721 if (avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
722 avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
723 int lefty, leftu, leftv, y, cy;
725 put_bits(&s->pb, 8, leftv = p->data[2][0]);
726 put_bits(&s->pb, 8, lefty = p->data[0][1]);
727 put_bits(&s->pb, 8, leftu = p->data[1][0]);
728 put_bits(&s->pb, 8, p->data[0][0]);
730 lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0);
731 leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0);
732 leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0);
734 encode_422_bitstream(s, 2, width-2);
736 if (s->predictor==MEDIAN) {
737 int lefttopy, lefttopu, lefttopv;
740 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty);
741 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu);
742 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv);
744 encode_422_bitstream(s, 0, width);
748 lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty);
749 leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu);
750 leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv);
752 encode_422_bitstream(s, 0, 4);
754 lefttopy = p->data[0][3];
755 lefttopu = p->data[1][1];
756 lefttopv = p->data[2][1];
757 s->dsp.sub_hfyu_median_prediction(s->temp[0], p->data[0]+4, p->data[0] + fake_ystride + 4, width - 4 , &lefty, &lefttopy);
758 s->dsp.sub_hfyu_median_prediction(s->temp[1], p->data[1]+2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu);
759 s->dsp.sub_hfyu_median_prediction(s->temp[2], p->data[2]+2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv);
760 encode_422_bitstream(s, 0, width - 4);
763 for (; y < height; y++,cy++) {
764 uint8_t *ydst, *udst, *vdst;
766 if (s->bitstream_bpp == 12) {
768 ydst = p->data[0] + p->linesize[0] * y;
769 s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
770 encode_gray_bitstream(s, width);
773 if (y >= height) break;
775 ydst = p->data[0] + p->linesize[0] * y;
776 udst = p->data[1] + p->linesize[1] * cy;
777 vdst = p->data[2] + p->linesize[2] * cy;
779 s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
780 s->dsp.sub_hfyu_median_prediction(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu);
781 s->dsp.sub_hfyu_median_prediction(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv);
783 encode_422_bitstream(s, 0, width);
786 for (cy = y = 1; y < height; y++, cy++) {
787 uint8_t *ydst, *udst, *vdst;
789 /* encode a luma only line & y++ */
790 if (s->bitstream_bpp == 12) {
791 ydst = p->data[0] + p->linesize[0] * y;
793 if (s->predictor == PLANE && s->interlaced < y) {
794 s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
796 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
798 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
800 encode_gray_bitstream(s, width);
802 if (y >= height) break;
805 ydst = p->data[0] + p->linesize[0] * y;
806 udst = p->data[1] + p->linesize[1] * cy;
807 vdst = p->data[2] + p->linesize[2] * cy;
809 if (s->predictor == PLANE && s->interlaced < cy) {
810 s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
811 s->dsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2);
812 s->dsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2);
814 lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
815 leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu);
816 leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv);
818 lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
819 leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu);
820 leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv);
823 encode_422_bitstream(s, 0, width);
826 } else if(avctx->pix_fmt == AV_PIX_FMT_RGB32) {
827 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
828 const int stride = -p->linesize[0];
829 const int fake_stride = -fake_ystride;
831 int leftr, leftg, leftb, lefta;
833 put_bits(&s->pb, 8, lefta = data[A]);
834 put_bits(&s->pb, 8, leftr = data[R]);
835 put_bits(&s->pb, 8, leftg = data[G]);
836 put_bits(&s->pb, 8, leftb = data[B]);
838 sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1,
839 &leftr, &leftg, &leftb, &lefta);
840 encode_bgra_bitstream(s, width - 1, 4);
842 for (y = 1; y < s->height; y++) {
843 uint8_t *dst = data + y*stride;
844 if (s->predictor == PLANE && s->interlaced < y) {
845 s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4);
846 sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width,
847 &leftr, &leftg, &leftb, &lefta);
849 sub_left_prediction_bgr32(s, s->temp[0], dst, width,
850 &leftr, &leftg, &leftb, &lefta);
852 encode_bgra_bitstream(s, width, 4);
854 } else if (avctx->pix_fmt == AV_PIX_FMT_RGB24) {
855 uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
856 const int stride = -p->linesize[0];
857 const int fake_stride = -fake_ystride;
859 int leftr, leftg, leftb;
861 put_bits(&s->pb, 8, leftr = data[0]);
862 put_bits(&s->pb, 8, leftg = data[1]);
863 put_bits(&s->pb, 8, leftb = data[2]);
864 put_bits(&s->pb, 8, 0);
866 sub_left_prediction_rgb24(s, s->temp[0], data + 3, width - 1,
867 &leftr, &leftg, &leftb);
868 encode_bgra_bitstream(s, width-1, 3);
870 for (y = 1; y < s->height; y++) {
871 uint8_t *dst = data + y * stride;
872 if (s->predictor == PLANE && s->interlaced < y) {
873 s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride,
875 sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width,
876 &leftr, &leftg, &leftb);
878 sub_left_prediction_rgb24(s, s->temp[0], dst, width,
879 &leftr, &leftg, &leftb);
881 encode_bgra_bitstream(s, width, 3);
883 } else if (s->version > 2) {
885 for (plane = 0; plane < 1 + 2*s->chroma + s->alpha; plane++) {
889 int fake_stride = fake_ystride;
891 if (s->chroma && (plane == 1 || plane == 2)) {
892 w >>= s->chroma_h_shift;
893 h >>= s->chroma_v_shift;
894 fake_stride = plane == 1 ? fake_ustride : fake_vstride;
897 left = sub_left_prediction(s, s->temp[0], p->data[plane], w , 0);
899 encode_plane_bitstream(s, w, plane);
901 if (s->predictor==MEDIAN) {
905 left = sub_left_prediction(s, s->temp[0], p->data[plane] + p->linesize[plane], w , left);
907 encode_plane_bitstream(s, w, plane);
911 lefttop = p->data[plane][0];
914 uint8_t *dst = p->data[plane] + p->linesize[plane] * y;
916 sub_median_prediction(s, s->temp[0], dst - fake_stride, dst, w , &left, &lefttop);
918 encode_plane_bitstream(s, w, plane);
921 for (y = 1; y < h; y++) {
922 uint8_t *dst = p->data[plane] + p->linesize[plane] * y;
924 if (s->predictor == PLANE && s->interlaced < y) {
925 diff_bytes(s, s->temp[1], dst, dst - fake_stride, w);
927 left = sub_left_prediction(s, s->temp[0], s->temp[1], w , left);
929 left = sub_left_prediction(s, s->temp[0], dst, w , left);
932 encode_plane_bitstream(s, w, plane);
937 av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
941 size += (put_bits_count(&s->pb) + 31) / 8;
942 put_bits(&s->pb, 16, 0);
943 put_bits(&s->pb, 15, 0);
946 if ((s->flags&CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) {
948 char *p = avctx->stats_out;
949 char *end = p + STATS_OUT_SIZE;
950 for (i = 0; i < 4; i++) {
951 for (j = 0; j < s->vlc_n; j++) {
952 snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]);
956 snprintf(p, end-p, "\n");
959 return AVERROR(ENOMEM);
961 } else if (avctx->stats_out)
962 avctx->stats_out[0] = '\0';
963 if (!(s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) {
964 flush_put_bits(&s->pb);
965 s->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size);
970 pkt->size = size * 4;
971 pkt->flags |= AV_PKT_FLAG_KEY;
977 static av_cold int encode_end(AVCodecContext *avctx)
979 HYuvContext *s = avctx->priv_data;
981 ff_huffyuv_common_end(s);
983 av_freep(&avctx->extradata);
984 av_freep(&avctx->stats_out);
986 av_frame_free(&avctx->coded_frame);
991 AVCodec ff_huffyuv_encoder = {
993 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
994 .type = AVMEDIA_TYPE_VIDEO,
995 .id = AV_CODEC_ID_HUFFYUV,
996 .priv_data_size = sizeof(HYuvContext),
998 .encode2 = encode_frame,
1000 .capabilities = CODEC_CAP_FRAME_THREADS | CODEC_CAP_INTRA_ONLY,
1001 .pix_fmts = (const enum AVPixelFormat[]){
1002 AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24,
1003 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
1007 #if CONFIG_FFVHUFF_ENCODER
1008 AVCodec ff_ffvhuff_encoder = {
1010 .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
1011 .type = AVMEDIA_TYPE_VIDEO,
1012 .id = AV_CODEC_ID_FFVHUFF,
1013 .priv_data_size = sizeof(HYuvContext),
1014 .init = encode_init,
1015 .encode2 = encode_frame,
1016 .close = encode_end,
1017 .capabilities = CODEC_CAP_FRAME_THREADS | CODEC_CAP_INTRA_ONLY,
1018 .pix_fmts = (const enum AVPixelFormat[]){
1019 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV411P,
1020 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
1022 AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
1023 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16,
1024 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
1027 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV420P16,
1028 AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV422P16,
1029 AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV444P16,
1030 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
1031 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P16,
1032 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P16,
1034 AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE