3 * ported to MPlayer by Arpi <arpi@thot.banki.hu>
4 * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru>
6 * Copyright (C) 2002 the xine project
7 * Copyright (C) 2002 the ffmpeg project
9 * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net>
11 * This file is part of FFmpeg.
13 * FFmpeg is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2.1 of the License, or (at your option) any later version.
18 * FFmpeg is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with FFmpeg; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 * Sorenson Vector Quantizer #1 (SVQ1) video codec.
31 * For more information of the SVQ1 algorithm, visit:
32 * http://www.pcisys.net/~melanson/codecs/
37 #include "mpegvideo.h"
44 extern const uint8_t ff_mvtab[33][2];
46 static VLC svq1_block_type;
47 static VLC svq1_motion_component;
48 static VLC svq1_intra_multistage[6];
49 static VLC svq1_inter_multistage[6];
50 static VLC svq1_intra_mean;
51 static VLC svq1_inter_mean;
53 /* motion vector (prediction) */
54 typedef struct svq1_pmv_s {
59 static const uint8_t string_table[256] = {
60 0x00, 0xD5, 0x7F, 0xAA, 0xFE, 0x2B, 0x81, 0x54,
61 0x29, 0xFC, 0x56, 0x83, 0xD7, 0x02, 0xA8, 0x7D,
62 0x52, 0x87, 0x2D, 0xF8, 0xAC, 0x79, 0xD3, 0x06,
63 0x7B, 0xAE, 0x04, 0xD1, 0x85, 0x50, 0xFA, 0x2F,
64 0xA4, 0x71, 0xDB, 0x0E, 0x5A, 0x8F, 0x25, 0xF0,
65 0x8D, 0x58, 0xF2, 0x27, 0x73, 0xA6, 0x0C, 0xD9,
66 0xF6, 0x23, 0x89, 0x5C, 0x08, 0xDD, 0x77, 0xA2,
67 0xDF, 0x0A, 0xA0, 0x75, 0x21, 0xF4, 0x5E, 0x8B,
68 0x9D, 0x48, 0xE2, 0x37, 0x63, 0xB6, 0x1C, 0xC9,
69 0xB4, 0x61, 0xCB, 0x1E, 0x4A, 0x9F, 0x35, 0xE0,
70 0xCF, 0x1A, 0xB0, 0x65, 0x31, 0xE4, 0x4E, 0x9B,
71 0xE6, 0x33, 0x99, 0x4C, 0x18, 0xCD, 0x67, 0xB2,
72 0x39, 0xEC, 0x46, 0x93, 0xC7, 0x12, 0xB8, 0x6D,
73 0x10, 0xC5, 0x6F, 0xBA, 0xEE, 0x3B, 0x91, 0x44,
74 0x6B, 0xBE, 0x14, 0xC1, 0x95, 0x40, 0xEA, 0x3F,
75 0x42, 0x97, 0x3D, 0xE8, 0xBC, 0x69, 0xC3, 0x16,
76 0xEF, 0x3A, 0x90, 0x45, 0x11, 0xC4, 0x6E, 0xBB,
77 0xC6, 0x13, 0xB9, 0x6C, 0x38, 0xED, 0x47, 0x92,
78 0xBD, 0x68, 0xC2, 0x17, 0x43, 0x96, 0x3C, 0xE9,
79 0x94, 0x41, 0xEB, 0x3E, 0x6A, 0xBF, 0x15, 0xC0,
80 0x4B, 0x9E, 0x34, 0xE1, 0xB5, 0x60, 0xCA, 0x1F,
81 0x62, 0xB7, 0x1D, 0xC8, 0x9C, 0x49, 0xE3, 0x36,
82 0x19, 0xCC, 0x66, 0xB3, 0xE7, 0x32, 0x98, 0x4D,
83 0x30, 0xE5, 0x4F, 0x9A, 0xCE, 0x1B, 0xB1, 0x64,
84 0x72, 0xA7, 0x0D, 0xD8, 0x8C, 0x59, 0xF3, 0x26,
85 0x5B, 0x8E, 0x24, 0xF1, 0xA5, 0x70, 0xDA, 0x0F,
86 0x20, 0xF5, 0x5F, 0x8A, 0xDE, 0x0B, 0xA1, 0x74,
87 0x09, 0xDC, 0x76, 0xA3, 0xF7, 0x22, 0x88, 0x5D,
88 0xD6, 0x03, 0xA9, 0x7C, 0x28, 0xFD, 0x57, 0x82,
89 0xFF, 0x2A, 0x80, 0x55, 0x01, 0xD4, 0x7E, 0xAB,
90 0x84, 0x51, 0xFB, 0x2E, 0x7A, 0xAF, 0x05, 0xD0,
91 0xAD, 0x78, 0xD2, 0x07, 0x53, 0x86, 0x2C, 0xF9
94 #define SVQ1_PROCESS_VECTOR() \
95 for (; level > 0; i++) { \
96 /* process next depth */ \
102 /* divide block if next bit set */ \
103 if (get_bits1(bitbuf) == 0) \
105 /* add child nodes */ \
106 list[n++] = list[i]; \
107 list[n++] = list[i] + (((level & 1) ? pitch : 1) << ((level >> 1) + 1));\
110 #define SVQ1_ADD_CODEBOOK() \
111 /* add codebook entries to vector */ \
112 for (j = 0; j < stages; j++) { \
113 n3 = codebook[entries[j]] ^ 0x80808080; \
114 n1 += (n3 & 0xFF00FF00) >> 8; \
115 n2 += n3 & 0x00FF00FF; \
118 /* clip to [0..255] */ \
119 if (n1 & 0xFF00FF00) { \
120 n3 = (n1 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
122 n1 |= (~n1 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
123 n1 &= n3 & 0x00FF00FF; \
126 if (n2 & 0xFF00FF00) { \
127 n3 = (n2 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
129 n2 |= (~n2 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
130 n2 &= n3 & 0x00FF00FF; \
133 #define SVQ1_DO_CODEBOOK_INTRA() \
134 for (y = 0; y < height; y++) { \
135 for (x = 0; x < width / 4; x++, codebook++) { \
138 SVQ1_ADD_CODEBOOK() \
140 dst[x] = n1 << 8 | n2; \
145 #define SVQ1_DO_CODEBOOK_NONINTRA() \
146 for (y = 0; y < height; y++) { \
147 for (x = 0; x < width / 4; x++, codebook++) { \
149 /* add mean value to vector */ \
150 n1 = n4 + ((n3 & 0xFF00FF00) >> 8); \
151 n2 = n4 + (n3 & 0x00FF00FF); \
152 SVQ1_ADD_CODEBOOK() \
154 dst[x] = n1 << 8 | n2; \
159 #define SVQ1_CALC_CODEBOOK_ENTRIES(cbook) \
160 codebook = (const uint32_t *)cbook[level]; \
162 bit_cache = get_bits(bitbuf, 4 * stages); \
163 /* calculate codebook entries for this vector */ \
164 for (j = 0; j < stages; j++) { \
165 entries[j] = (((bit_cache >> (4 * (stages - j - 1))) & 0xF) + \
166 16 * j) << (level + 1); \
168 mean -= stages * 128; \
169 n4 = (mean << 16) + mean;
171 static int svq1_decode_block_intra(GetBitContext *bitbuf, uint8_t *pixels,
177 const uint32_t *codebook;
181 unsigned x, y, width, height, level;
182 uint32_t n1, n2, n3, n4;
184 /* initialize list for breadth first processing of vectors */
187 /* recursively process vector */
188 for (i = 0, m = 1, n = 1, level = 5; i < n; i++) {
189 SVQ1_PROCESS_VECTOR();
191 /* destination address and vector size */
192 dst = (uint32_t *)list[i];
193 width = 1 << ((4 + level) / 2);
194 height = 1 << ((3 + level) / 2);
196 /* get number of stages (-1 skips vector, 0 for mean only) */
197 stages = get_vlc2(bitbuf, svq1_intra_multistage[level].table, 3, 3) - 1;
200 for (y = 0; y < height; y++)
201 memset(&dst[y * (pitch / 4)], 0, width);
202 continue; /* skip vector */
205 if (stages > 0 && level >= 4) {
207 "Error (svq1_decode_block_intra): invalid vector: stages=%i level=%i\n",
209 return -1; /* invalid vector */
212 mean = get_vlc2(bitbuf, svq1_intra_mean.table, 8, 3);
215 for (y = 0; y < height; y++)
216 memset(&dst[y * (pitch / 4)], mean, width);
218 SVQ1_CALC_CODEBOOK_ENTRIES(ff_svq1_intra_codebooks);
219 SVQ1_DO_CODEBOOK_INTRA()
226 static int svq1_decode_block_non_intra(GetBitContext *bitbuf, uint8_t *pixels,
232 const uint32_t *codebook;
236 int x, y, width, height, level;
237 uint32_t n1, n2, n3, n4;
239 /* initialize list for breadth first processing of vectors */
242 /* recursively process vector */
243 for (i = 0, m = 1, n = 1, level = 5; i < n; i++) {
244 SVQ1_PROCESS_VECTOR();
246 /* destination address and vector size */
247 dst = (uint32_t *)list[i];
248 width = 1 << ((4 + level) / 2);
249 height = 1 << ((3 + level) / 2);
251 /* get number of stages (-1 skips vector, 0 for mean only) */
252 stages = get_vlc2(bitbuf, svq1_inter_multistage[level].table, 3, 2) - 1;
255 continue; /* skip vector */
257 if ((stages > 0) && (level >= 4)) {
259 "Error (svq1_decode_block_non_intra): invalid vector: stages=%i level=%i\n",
261 return -1; /* invalid vector */
264 mean = get_vlc2(bitbuf, svq1_inter_mean.table, 9, 3) - 256;
266 SVQ1_CALC_CODEBOOK_ENTRIES(ff_svq1_inter_codebooks);
267 SVQ1_DO_CODEBOOK_NONINTRA()
272 static int svq1_decode_motion_vector(GetBitContext *bitbuf, svq1_pmv *mv,
278 for (i = 0; i < 2; i++) {
279 /* get motion code */
280 diff = get_vlc2(bitbuf, svq1_motion_component.table, 7, 2);
284 if (get_bits1(bitbuf))
288 /* add median of motion vector predictors and clip result */
290 mv->y = sign_extend(diff + mid_pred(pmv[0]->y, pmv[1]->y, pmv[2]->y), 6);
292 mv->x = sign_extend(diff + mid_pred(pmv[0]->x, pmv[1]->x, pmv[2]->x), 6);
298 static void svq1_skip_block(uint8_t *current, uint8_t *previous,
299 int pitch, int x, int y)
305 src = &previous[x + y * pitch];
308 for (i = 0; i < 16; i++) {
309 memcpy(dst, src, 16);
315 static int svq1_motion_inter_block(MpegEncContext *s, GetBitContext *bitbuf,
316 uint8_t *current, uint8_t *previous,
317 int pitch, svq1_pmv *motion, int x, int y)
325 /* predict and decode motion vector */
331 pmv[1] = &motion[x / 8 + 2];
332 pmv[2] = &motion[x / 8 + 4];
335 result = svq1_decode_motion_vector(bitbuf, &mv, pmv);
341 motion[x / 8 + 2].x =
342 motion[x / 8 + 3].x = mv.x;
344 motion[x / 8 + 2].y =
345 motion[x / 8 + 3].y = mv.y;
347 if (y + (mv.y >> 1) < 0)
349 if (x + (mv.x >> 1) < 0)
352 src = &previous[(x + (mv.x >> 1)) + (y + (mv.y >> 1)) * pitch];
355 s->dsp.put_pixels_tab[0][(mv.y & 1) << 1 | (mv.x & 1)](dst, src, pitch, 16);
360 static int svq1_motion_inter_4v_block(MpegEncContext *s, GetBitContext *bitbuf,
361 uint8_t *current, uint8_t *previous,
362 int pitch, svq1_pmv *motion, int x, int y)
370 /* predict and decode motion vector (0) */
376 pmv[1] = &motion[(x / 8) + 2];
377 pmv[2] = &motion[(x / 8) + 4];
380 result = svq1_decode_motion_vector(bitbuf, &mv, pmv);
385 /* predict and decode motion vector (1) */
391 pmv[1] = &motion[(x / 8) + 3];
393 result = svq1_decode_motion_vector(bitbuf, &motion[0], pmv);
398 /* predict and decode motion vector (2) */
400 pmv[2] = &motion[(x / 8) + 1];
402 result = svq1_decode_motion_vector(bitbuf, &motion[(x / 8) + 2], pmv);
407 /* predict and decode motion vector (3) */
408 pmv[2] = &motion[(x / 8) + 2];
409 pmv[3] = &motion[(x / 8) + 3];
411 result = svq1_decode_motion_vector(bitbuf, pmv[3], pmv);
416 /* form predictions */
417 for (i = 0; i < 4; i++) {
418 int mvx = pmv[i]->x + (i & 1) * 16;
419 int mvy = pmv[i]->y + (i >> 1) * 16;
421 // FIXME: clipping or padding?
422 if (y + (mvy >> 1) < 0)
424 if (x + (mvx >> 1) < 0)
427 src = &previous[(x + (mvx >> 1)) + (y + (mvy >> 1)) * pitch];
430 s->dsp.put_pixels_tab[1][((mvy & 1) << 1) | (mvx & 1)](dst, src, pitch, 8);
432 /* select next block */
434 current += 8 * (pitch - 1);
442 static int svq1_decode_delta_block(MpegEncContext *s, GetBitContext *bitbuf,
443 uint8_t *current, uint8_t *previous,
444 int pitch, svq1_pmv *motion, int x, int y)
450 block_type = get_vlc2(bitbuf, svq1_block_type.table, 2, 2);
452 /* reset motion vectors */
453 if (block_type == SVQ1_BLOCK_SKIP || block_type == SVQ1_BLOCK_INTRA) {
456 motion[x / 8 + 2].x =
457 motion[x / 8 + 2].y =
458 motion[x / 8 + 3].x =
459 motion[x / 8 + 3].y = 0;
462 switch (block_type) {
463 case SVQ1_BLOCK_SKIP:
464 svq1_skip_block(current, previous, pitch, x, y);
467 case SVQ1_BLOCK_INTER:
468 result = svq1_motion_inter_block(s, bitbuf, current, previous,
469 pitch, motion, x, y);
472 av_dlog(s->avctx, "Error in svq1_motion_inter_block %i\n", result);
475 result = svq1_decode_block_non_intra(bitbuf, current, pitch);
478 case SVQ1_BLOCK_INTER_4V:
479 result = svq1_motion_inter_4v_block(s, bitbuf, current, previous,
480 pitch, motion, x, y);
484 "Error in svq1_motion_inter_4v_block %i\n", result);
487 result = svq1_decode_block_non_intra(bitbuf, current, pitch);
490 case SVQ1_BLOCK_INTRA:
491 result = svq1_decode_block_intra(bitbuf, current, pitch);
498 static void svq1_parse_string(GetBitContext *bitbuf, uint8_t *out)
503 out[0] = get_bits(bitbuf, 8);
504 seed = string_table[out[0]];
506 for (i = 1; i <= out[0]; i++) {
507 out[i] = get_bits(bitbuf, 8) ^ seed;
508 seed = string_table[out[i] ^ seed];
512 static int svq1_decode_frame_header(GetBitContext *bitbuf, MpegEncContext *s)
516 skip_bits(bitbuf, 8); /* temporal_reference */
519 s->pict_type = get_bits(bitbuf, 2) + 1;
520 if (s->pict_type == 4)
523 if (s->pict_type == AV_PICTURE_TYPE_I) {
525 if (s->f_code == 0x50 || s->f_code == 0x60) {
526 int csum = get_bits(bitbuf, 16);
528 csum = ff_svq1_packet_checksum(bitbuf->buffer,
529 bitbuf->size_in_bits >> 3,
532 av_dlog(s->avctx, "%s checksum (%02x) for packet data\n",
533 (csum == 0) ? "correct" : "incorrect", csum);
536 if ((s->f_code ^ 0x10) >= 0x50) {
539 svq1_parse_string(bitbuf, msg);
541 av_log(s->avctx, AV_LOG_ERROR,
542 "embedded message: \"%s\"\n", (char *)msg);
545 skip_bits(bitbuf, 2);
546 skip_bits(bitbuf, 2);
549 /* load frame size */
550 frame_size_code = get_bits(bitbuf, 3);
552 if (frame_size_code == 7) {
553 /* load width, height (12 bits each) */
554 s->width = get_bits(bitbuf, 12);
555 s->height = get_bits(bitbuf, 12);
557 if (!s->width || !s->height)
560 /* get width, height from table */
561 s->width = ff_svq1_frame_size_table[frame_size_code].width;
562 s->height = ff_svq1_frame_size_table[frame_size_code].height;
567 if (get_bits1(bitbuf) == 1) {
568 skip_bits1(bitbuf); /* use packet checksum if (1) */
569 skip_bits1(bitbuf); /* component checksums after image data if (1) */
571 if (get_bits(bitbuf, 2) != 0)
575 if (get_bits1(bitbuf) == 1) {
577 skip_bits(bitbuf, 4);
579 skip_bits(bitbuf, 2);
581 while (get_bits1(bitbuf) == 1)
582 skip_bits(bitbuf, 8);
588 static int svq1_decode_frame(AVCodecContext *avctx, void *data,
589 int *data_size, AVPacket *avpkt)
591 const uint8_t *buf = avpkt->data;
592 int buf_size = avpkt->size;
593 MpegEncContext *s = avctx->priv_data;
594 uint8_t *current, *previous;
595 int result, i, x, y, width, height;
596 AVFrame *pict = data;
599 /* initialize bit buffer */
600 init_get_bits(&s->gb, buf, buf_size * 8);
602 /* decode frame header */
603 s->f_code = get_bits(&s->gb, 22);
605 if ((s->f_code & ~0x70) || !(s->f_code & 0x60))
608 /* swap some header bytes (why?) */
609 if (s->f_code != 0x20) {
610 uint32_t *src = (uint32_t *)(buf + 4);
613 return AVERROR_INVALIDDATA;
615 for (i = 0; i < 4; i++)
616 src[i] = ((src[i] << 16) | (src[i] >> 16)) ^ src[7 - i];
619 result = svq1_decode_frame_header(&s->gb, s);
622 av_dlog(s->avctx, "Error in svq1_decode_frame_header %i\n", result);
625 avcodec_set_dimensions(avctx, s->width, s->height);
627 /* FIXME: This avoids some confusion for "B frames" without 2 references.
628 * This should be removed after libavcodec can handle more flexible
629 * picture types & ordering */
630 if (s->pict_type == AV_PICTURE_TYPE_B && s->last_picture_ptr == NULL)
633 if ((avctx->skip_frame >= AVDISCARD_NONREF &&
634 s->pict_type == AV_PICTURE_TYPE_B) ||
635 (avctx->skip_frame >= AVDISCARD_NONKEY &&
636 s->pict_type != AV_PICTURE_TYPE_I) ||
637 avctx->skip_frame >= AVDISCARD_ALL)
640 if (ff_MPV_frame_start(s, avctx) < 0)
643 pmv = av_malloc((FFALIGN(s->width, 16) / 8 + 3) * sizeof(*pmv));
647 /* decode y, u and v components */
648 for (i = 0; i < 3; i++) {
651 width = FFALIGN(s->width, 16);
652 height = FFALIGN(s->height, 16);
653 linesize = s->linesize;
655 if (s->flags & CODEC_FLAG_GRAY)
657 width = FFALIGN(s->width / 4, 16);
658 height = FFALIGN(s->height / 4, 16);
659 linesize = s->uvlinesize;
662 current = s->current_picture.f.data[i];
664 if (s->pict_type == AV_PICTURE_TYPE_B)
665 previous = s->next_picture.f.data[i];
667 previous = s->last_picture.f.data[i];
669 if (s->pict_type == AV_PICTURE_TYPE_I) {
671 for (y = 0; y < height; y += 16) {
672 for (x = 0; x < width; x += 16) {
673 result = svq1_decode_block_intra(&s->gb, ¤t[x],
676 av_log(s->avctx, AV_LOG_INFO,
677 "Error in svq1_decode_block %i (keyframe)\n",
682 current += 16 * linesize;
686 memset(pmv, 0, ((width / 8) + 3) * sizeof(svq1_pmv));
688 for (y = 0; y < height; y += 16) {
689 for (x = 0; x < width; x += 16) {
690 result = svq1_decode_delta_block(s, &s->gb, ¤t[x],
695 "Error in svq1_decode_delta_block %i\n",
704 current += 16 * linesize;
709 *pict = s->current_picture.f;
713 *data_size = sizeof(AVFrame);
721 static av_cold int svq1_decode_init(AVCodecContext *avctx)
723 MpegEncContext *s = avctx->priv_data;
727 ff_MPV_decode_defaults(s);
730 s->width = avctx->width + 3 & ~3;
731 s->height = avctx->height + 3 & ~3;
732 s->codec_id = avctx->codec->id;
733 avctx->pix_fmt = AV_PIX_FMT_YUV410P;
734 /* Not true, but DP frames and these behave like unidirectional B-frames. */
735 avctx->has_b_frames = 1;
736 s->flags = avctx->flags;
737 if (ff_MPV_common_init(s) < 0)
740 INIT_VLC_STATIC(&svq1_block_type, 2, 4,
741 &ff_svq1_block_type_vlc[0][1], 2, 1,
742 &ff_svq1_block_type_vlc[0][0], 2, 1, 6);
744 INIT_VLC_STATIC(&svq1_motion_component, 7, 33,
745 &ff_mvtab[0][1], 2, 1,
746 &ff_mvtab[0][0], 2, 1, 176);
748 for (i = 0; i < 6; i++) {
749 static const uint8_t sizes[2][6] = { { 14, 10, 14, 18, 16, 18 },
750 { 10, 10, 14, 14, 14, 16 } };
751 static VLC_TYPE table[168][2];
752 svq1_intra_multistage[i].table = &table[offset];
753 svq1_intra_multistage[i].table_allocated = sizes[0][i];
754 offset += sizes[0][i];
755 init_vlc(&svq1_intra_multistage[i], 3, 8,
756 &ff_svq1_intra_multistage_vlc[i][0][1], 2, 1,
757 &ff_svq1_intra_multistage_vlc[i][0][0], 2, 1,
758 INIT_VLC_USE_NEW_STATIC);
759 svq1_inter_multistage[i].table = &table[offset];
760 svq1_inter_multistage[i].table_allocated = sizes[1][i];
761 offset += sizes[1][i];
762 init_vlc(&svq1_inter_multistage[i], 3, 8,
763 &ff_svq1_inter_multistage_vlc[i][0][1], 2, 1,
764 &ff_svq1_inter_multistage_vlc[i][0][0], 2, 1,
765 INIT_VLC_USE_NEW_STATIC);
768 INIT_VLC_STATIC(&svq1_intra_mean, 8, 256,
769 &ff_svq1_intra_mean_vlc[0][1], 4, 2,
770 &ff_svq1_intra_mean_vlc[0][0], 4, 2, 632);
772 INIT_VLC_STATIC(&svq1_inter_mean, 9, 512,
773 &ff_svq1_inter_mean_vlc[0][1], 4, 2,
774 &ff_svq1_inter_mean_vlc[0][0], 4, 2, 1434);
779 static av_cold int svq1_decode_end(AVCodecContext *avctx)
781 MpegEncContext *s = avctx->priv_data;
783 ff_MPV_common_end(s);
787 AVCodec ff_svq1_decoder = {
789 .type = AVMEDIA_TYPE_VIDEO,
790 .id = AV_CODEC_ID_SVQ1,
791 .priv_data_size = sizeof(MpegEncContext),
792 .init = svq1_decode_init,
793 .close = svq1_decode_end,
794 .decode = svq1_decode_frame,
795 .capabilities = CODEC_CAP_DR1,
796 .flush = ff_mpeg_flush,
797 .pix_fmts = (const enum PixelFormat[]) { AV_PIX_FMT_YUV410P,
799 .long_name = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),