FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/svq1enc.c
Date: 2026-01-23 19:11:46
Exec Total Coverage
Lines: 347 361 96.1%
Functions: 8 8 100.0%
Branches: 160 184 87.0%
Line Branch Exec Source
1 /*
2 * SVQ1 Encoder
3 * Copyright (C) 2004 Mike Melanson <melanson@pcisys.net>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * Sorenson Vector Quantizer #1 (SVQ1) video codec.
25 * For more information of the SVQ1 algorithm, visit:
26 * http://www.pcisys.net/~melanson/codecs/
27 */
28
29 #include "libavutil/emms.h"
30 #include "libavutil/mem.h"
31 #include "avcodec.h"
32 #include "codec_internal.h"
33 #include "encode.h"
34 #include "hpeldsp.h"
35 #include "me_cmp.h"
36 #include "mpegvideo.h"
37 #include "h263.h"
38 #include "h263enc.h"
39 #include "internal.h"
40 #include "mpegutils.h"
41 #include "put_bits.h"
42 #include "svq1.h"
43 #include "svq1encdsp.h"
44 #include "svq1enc_cb.h"
45 #include "version.h"
46
47 #include "libavutil/avassert.h"
48 #include "libavutil/frame.h"
49 #include "libavutil/mem_internal.h"
50
51 // Workaround for GCC bug 102513
52 #if AV_GCC_VERSION_AT_LEAST(10, 0) && AV_GCC_VERSION_AT_MOST(12, 0) \
53 && !defined(__clang__) && !defined(__INTEL_COMPILER)
54 #pragma GCC optimize ("no-ipa-cp-clone")
55 #endif
56
57 typedef struct SVQ1EncContext {
58 /* FIXME: Needed for motion estimation, should not be used for anything
59 * else, the idea is to make the motion estimation eventually independent
60 * of MPVEncContext, so this will be removed then. */
61 MPVEncContext m;
62 AVCodecContext *avctx;
63 MECmpContext mecc;
64 AVFrame *current_picture;
65 AVFrame *last_picture;
66
67 /* Some compression statistics */
68 enum AVPictureType pict_type;
69 int quality;
70
71 /* why ooh why this sick breadth first order,
72 * everything is slower and more complex */
73 PutBitContext reorder_pb[6];
74
75 int frame_width;
76 int frame_height;
77
78 /* Y plane block dimensions */
79 int y_block_width;
80 int y_block_height;
81
82 DECLARE_ALIGNED(16, int16_t, encoded_block_levels)[6][7][256];
83
84 uint16_t *mb_type;
85 uint32_t *dummy;
86 int16_t (*motion_val8[3])[2];
87 int16_t (*motion_val16[3])[2];
88
89 int64_t rd_total;
90
91 uint8_t *scratchbuf;
92
93 SVQ1EncDSPContext svq1encdsp;
94 } SVQ1EncContext;
95
96 200 static void svq1_write_header(SVQ1EncContext *s, PutBitContext *pb, int frame_type)
97 {
98 int i;
99
100 /* frame code */
101 200 put_bits(pb, 22, 0x20);
102
103 /* temporal reference (sure hope this is a "don't care") */
104 200 put_bits(pb, 8, 0x00);
105
106 /* frame type */
107 200 put_bits(pb, 2, frame_type - 1);
108
109
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 180 times.
 200 if (frame_type == AV_PICTURE_TYPE_I) {
110 /* no checksum since frame code is 0x20 */
111 /* no embedded string either */
112 /* output 5 unknown bits (2 + 2 + 1) */
113 20 put_bits(pb, 5, 2); /* 2 needed by quicktime decoder */
114
115 20 i = ff_match_2uint16(ff_svq1_frame_size_table,
116 FF_ARRAY_ELEMS(ff_svq1_frame_size_table),
117 s->frame_width, s->frame_height);
118 20 put_bits(pb, 3, i);
119
120
2/2
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 15 times.
 20 if (i == 7) {
121 5 put_bits(pb, 12, s->frame_width);
122 5 put_bits(pb, 12, s->frame_height);
123 }
124 }
125
126 /* no checksum or extra data (next 2 bits get 0) */
127 200 put_bits(pb, 2, 0);
128 200 }
129
130 #define QUALITY_THRESHOLD 100
131 #define THRESHOLD_MULTIPLIER 0.6
132
133 4302522 static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref,
134 uint8_t *decoded, int stride, unsigned level,
135 int threshold, int lambda, int intra)
136 {
137 int count, y, x, i, j, split, best_mean, best_score, best_count;
138 int best_vector[6];
139 4302522 int block_sum[7] = { 0, 0, 0, 0, 0, 0 };
140 4302522 int w = 2 << (level + 2 >> 1);
141 4302522 int h = 2 << (level + 1 >> 1);
142 4302522 int size = w * h;
143 4302522 int16_t (*block)[256] = s->encoded_block_levels[level];
144 const int8_t *codebook_sum, *codebook;
145 const uint16_t(*mean_vlc)[2];
146 const uint8_t(*multistage_vlc)[2];
147
148 4302522 best_score = 0;
149 // FIXME: Optimize, this does not need to be done multiple times.
150
2/2
✓ Branch 0 taken 643715 times.
✓ Branch 1 taken 3658807 times.
 4302522 if (intra) {
151 // level is 5 when encode_block is called from svq1_encode_plane
152 // and always < 4 when called recursively from this function.
153
2/2
✓ Branch 0 taken 612686 times.
✓ Branch 1 taken 31029 times.
 643715 codebook_sum = level < 4 ? svq1_intra_codebook_sum[level] : NULL;
154 643715 codebook = ff_svq1_intra_codebooks[level];
155 643715 mean_vlc = ff_svq1_intra_mean_vlc;
156 643715 multistage_vlc = ff_svq1_intra_multistage_vlc[level];
157
2/2
✓ Branch 0 taken 2296676 times.
✓ Branch 1 taken 643715 times.
 2940391 for (y = 0; y < h; y++) {
158
2/2
✓ Branch 0 taken 15798160 times.
✓ Branch 1 taken 2296676 times.
 18094836 for (x = 0; x < w; x++) {
159 15798160 int v = src[x + y * stride];
160 15798160 block[0][x + w * y] = v;
161 15798160 best_score += v * v;
162 15798160 block_sum[0] += v;
163 }
164 }
165 } else {
166 // level is 5 or < 4, see above for details.
167
2/2
✓ Branch 0 taken 3483018 times.
✓ Branch 1 taken 175789 times.
 3658807 codebook_sum = level < 4 ? svq1_inter_codebook_sum[level] : NULL;
168 3658807 codebook = ff_svq1_inter_codebooks[level];
169 3658807 mean_vlc = ff_svq1_inter_mean_vlc + 256;
170 3658807 multistage_vlc = ff_svq1_inter_multistage_vlc[level];
171
2/2
✓ Branch 0 taken 13044696 times.
✓ Branch 1 taken 3658807 times.
 16703503 for (y = 0; y < h; y++) {
172
2/2
✓ Branch 0 taken 89655008 times.
✓ Branch 1 taken 13044696 times.
 102699704 for (x = 0; x < w; x++) {
173 89655008 int v = src[x + y * stride] - ref[x + y * stride];
174 89655008 block[0][x + w * y] = v;
175 89655008 best_score += v * v;
176 89655008 block_sum[0] += v;
177 }
178 }
179 }
180
181 4302522 best_count = 0;
182 4302522 best_score -= (int)((unsigned)block_sum[0] * block_sum[0] >> (level + 3));
183 4302522 best_mean = block_sum[0] + (size >> 1) >> (level + 3);
184
185
2/2
✓ Branch 0 taken 4095704 times.
✓ Branch 1 taken 206818 times.
 4302522 if (level < 4) {
186
2/2
✓ Branch 0 taken 24574224 times.
✓ Branch 1 taken 4095704 times.
 28669928 for (count = 1; count < 7; count++) {
187 24574224 int best_vector_score = INT_MAX;
188 24574224 int best_vector_sum = -999, best_vector_mean = -999;
189 24574224 const int stage = count - 1;
190 const int8_t *vector;
191
192
2/2
✓ Branch 0 taken 393187584 times.
✓ Branch 1 taken 24574224 times.
 417761808 for (i = 0; i < 16; i++) {
193 393187584 int sum = codebook_sum[stage * 16 + i];
194 int sqr, diff, score;
195
196 393187584 vector = codebook + stage * size * 16 + i * size;
197 393187584 sqr = s->svq1encdsp.ssd_int8_vs_int16(vector, block[stage], size);
198 393187584 diff = block_sum[stage] - sum;
199 393187584 score = sqr - (diff * (int64_t)diff >> (level + 3)); // FIXME: 64 bits slooow
200
2/2
✓ Branch 0 taken 65426753 times.
✓ Branch 1 taken 327760831 times.
 393187584 if (score < best_vector_score) {
201 65426753 int mean = diff + (size >> 1) >> (level + 3);
202 av_assert2(mean > -300 && mean < 300);
203
2/2
✓ Branch 0 taken 9912177 times.
✓ Branch 1 taken 55514576 times.
 65426753 mean = av_clip(mean, intra ? 0 : -256, 255);
204 65426753 best_vector_score = score;
205 65426753 best_vector[stage] = i;
206 65426753 best_vector_sum = sum;
207 65426753 best_vector_mean = mean;
208 }
209 }
210
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 24574224 times.
 24574224 av_assert0(best_vector_mean != -999);
211 24574224 vector = codebook + stage * size * 16 + best_vector[stage] * size;
212
2/2
✓ Branch 0 taken 420929184 times.
✓ Branch 1 taken 24574224 times.
 445503408 for (j = 0; j < size; j++)
213 420929184 block[stage + 1][j] = block[stage][j] - vector[j];
214 24574224 block_sum[stage + 1] = block_sum[stage] - best_vector_sum;
215 24574224 best_vector_score += lambda *
216 24574224 (+1 + 4 * count +
217 24574224 multistage_vlc[1 + count][1]
218 24574224 + mean_vlc[best_vector_mean][1]);
219
220
2/2
✓ Branch 0 taken 5416629 times.
✓ Branch 1 taken 19157595 times.
 24574224 if (best_vector_score < best_score) {
221 5416629 best_score = best_vector_score;
222 5416629 best_count = count;
223 5416629 best_mean = best_vector_mean;
224 }
225 }
226 }
227
228
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 4302510 times.
 4302522 if (best_mean == -128)
229 12 best_mean = -127;
230
2/2
✓ Branch 0 taken 6210 times.
✓ Branch 1 taken 4296300 times.
 4302510 else if (best_mean == 128)
231 6210 best_mean = 127;
232
233 4302522 split = 0;
234
4/4
✓ Branch 0 taken 4243230 times.
✓ Branch 1 taken 59292 times.
✓ Branch 2 taken 2116786 times.
✓ Branch 3 taken 2126444 times.
 4302522 if (best_score > threshold && level) {
235 2116786 int score = 0;
236
2/2
✓ Branch 0 taken 1431267 times.
✓ Branch 1 taken 685519 times.
 2116786 int offset = level & 1 ? stride * h / 2 : w / 2;
237 PutBitContext backup[6];
238
239
2/2
✓ Branch 0 taken 3903357 times.
✓ Branch 1 taken 2116786 times.
 6020143 for (i = level - 1; i >= 0; i--)
240 3903357 backup[i] = s->reorder_pb[i];
241 2116786 score += encode_block(s, src, ref, decoded, stride, level - 1,
242 threshold >> 1, lambda, intra);
243 2116786 score += encode_block(s, src + offset, ref + offset, decoded + offset,
244 stride, level - 1, threshold >> 1, lambda, intra);
245 2116786 score += lambda;
246
247
2/2
✓ Branch 0 taken 1359243 times.
✓ Branch 1 taken 757543 times.
 2116786 if (score < best_score) {
248 1359243 best_score = score;
249 1359243 split = 1;
250 } else {
251
2/2
✓ Branch 0 taken 1046147 times.
✓ Branch 1 taken 757543 times.
 1803690 for (i = level - 1; i >= 0; i--)
252 1046147 s->reorder_pb[i] = backup[i];
253 }
254 }
255
2/2
✓ Branch 0 taken 2127616 times.
✓ Branch 1 taken 2174906 times.
 4302522 if (level > 0)
256 2127616 put_bits(&s->reorder_pb[level], 1, split);
257
258
2/2
✓ Branch 0 taken 2943279 times.
✓ Branch 1 taken 1359243 times.
 4302522 if (!split) {
259 av_assert1(best_mean >= 0 && best_mean < 256 || !intra);
260 av_assert1(best_mean >= -256 && best_mean < 256);
261 av_assert1(best_count >= 0 && best_count < 7);
262 av_assert1(level < 4 || best_count == 0);
263
264 /* output the encoding */
265 2943279 put_bits(&s->reorder_pb[level],
266 2943279 multistage_vlc[1 + best_count][1],
267 2943279 multistage_vlc[1 + best_count][0]);
268 2943279 put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],
269 2943279 mean_vlc[best_mean][0]);
270
271
2/2
✓ Branch 0 taken 3649044 times.
✓ Branch 1 taken 2943279 times.
 6592323 for (i = 0; i < best_count; i++) {
272 av_assert2(best_vector[i] >= 0 && best_vector[i] < 16);
273 3649044 put_bits(&s->reorder_pb[level], 4, best_vector[i]);
274 }
275
276
2/2
✓ Branch 0 taken 7680728 times.
✓ Branch 1 taken 2943279 times.
 10624007 for (y = 0; y < h; y++)
277
2/2
✓ Branch 0 taken 36196848 times.
✓ Branch 1 taken 7680728 times.
 43877576 for (x = 0; x < w; x++)
278 36196848 decoded[x + y * stride] = src[x + y * stride] -
279 36196848 block[best_count][x + w * y] +
280 best_mean;
281 }
282
283 4302522 return best_score;
284 }
285
286 131005 static void init_block_index(MpegEncContext *const s)
287 {
288 131005 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) + s->mb_x*2;
289 131005 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) + 1 + s->mb_x*2;
290 131005 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) + s->mb_x*2;
291 131005 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) + 1 + s->mb_x*2;
292 131005 }
293
294 600 static int svq1_encode_plane(SVQ1EncContext *s, int plane,
295 PutBitContext *pb,
296 const unsigned char *src_plane,
297 unsigned char *ref_plane,
298 unsigned char *decoded_plane,
299 int width, int height, int src_stride, int stride)
300 {
301 600 MpegEncContext *const s2 = &s->m.c;
302 int x, y;
303 int i;
304 int block_width, block_height;
305 int level;
306 int threshold[6];
307 600 uint8_t *src = s->scratchbuf + stride * 32;
308 600 const int lambda = (s->quality * s->quality) >>
309 (2 * FF_LAMBDA_SHIFT);
310
311 /* figure out the acceptable level thresholds in advance */
312 600 threshold[5] = QUALITY_THRESHOLD;
313
2/2
✓ Branch 0 taken 3000 times.
✓ Branch 1 taken 600 times.
 3600 for (level = 4; level >= 0; level--)
314 3000 threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER;
315
316 600 block_width = (width + 15) / 16;
317 600 block_height = (height + 15) / 16;
318
319
2/2
✓ Branch 0 taken 540 times.
✓ Branch 1 taken 60 times.
 600 if (s->pict_type == AV_PICTURE_TYPE_P) {
320 540 s2->last_pic.data[0] = ref_plane;
321 540 s2->linesize =
322 540 s2->last_pic.linesize[0] =
323 540 s->m.new_pic->linesize[0] =
324 540 s2->cur_pic.linesize[0] = stride;
325 540 s2->width = width;
326 540 s2->height = height;
327 540 s2->mb_width = block_width;
328 540 s2->mb_height = block_height;
329 540 s2->mb_stride = s2->mb_width + 1;
330 540 s2->b8_stride = 2 * s2->mb_width + 1;
331 540 s->m.f_code = 1;
332 540 s2->pict_type = s->pict_type;
333 540 s->m.me.scene_change_score = 0;
334 // s2->out_format = FMT_H263;
335 // s->m.me.unrestricted_mv = 1;
336 540 s->m.lambda = s->quality;
337 540 s2->qscale = s->m.lambda * 139 +
338 540 FF_LAMBDA_SCALE * 64 >>
339 FF_LAMBDA_SHIFT + 7;
340 540 s->m.lambda2 = s->m.lambda * s->m.lambda +
341 540 FF_LAMBDA_SCALE / 2 >>
342 FF_LAMBDA_SHIFT;
343
344 540 s->m.mb_type = s->mb_type;
345
346 // dummies, to avoid segfaults
347 540 s->m.mb_mean = (uint8_t *)s->dummy;
348 540 s->m.mb_var = (uint16_t *)s->dummy;
349 540 s->m.mc_mb_var = (uint16_t *)s->dummy;
350 540 s2->cur_pic.mb_type = s->dummy;
351
352 540 s2->cur_pic.motion_val[0] = s->motion_val8[plane] + 2;
353 540 s->m.p_mv_table = s->motion_val16[plane] +
354 540 s2->mb_stride + 1;
355 540 ff_me_init_pic(&s->m);
356
357 540 s->m.me.dia_size = s->avctx->dia_size;
358 540 s2->first_slice_line = 1;
359
2/2
✓ Branch 0 taken 4005 times.
✓ Branch 1 taken 540 times.
 4545 for (y = 0; y < block_height; y++) {
360 4005 s->m.new_pic->data[0] = src - y * 16 * stride; // ugly
361 4005 s2->mb_y = y;
362
363
4/4
✓ Branch 0 taken 60975 times.
✓ Branch 1 taken 3600 times.
✓ Branch 2 taken 60570 times.
✓ Branch 3 taken 405 times.
 64575 for (i = 0; i < 16 && i + 16 * y < height; i++) {
364 60570 memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
365 width);
366
2/2
✓ Branch 0 taken 182700 times.
✓ Branch 1 taken 60570 times.
 243270 for (x = width; x < 16 * block_width; x++)
367 182700 src[i * stride + x] = src[i * stride + x - 1];
368 }
369
3/4
✓ Branch 0 taken 3510 times.
✓ Branch 1 taken 4005 times.
✓ Branch 2 taken 3510 times.
✗ Branch 3 not taken.
 7515 for (; i < 16 && i + 16 * y < 16 * block_height; i++)
370 3510 memcpy(&src[i * stride], &src[(i - 1) * stride],
371 3510 16 * block_width);
372
373
2/2
✓ Branch 0 taken 62055 times.
✓ Branch 1 taken 4005 times.
 66060 for (x = 0; x < block_width; x++) {
374 62055 s2->mb_x = x;
375 62055 init_block_index(s2);
376
377 62055 ff_estimate_p_frame_motion(&s->m, x, y);
378 }
379 4005 s2->first_slice_line = 0;
380 }
381
382 540 ff_fix_long_p_mvs(&s->m, CANDIDATE_MB_TYPE_INTRA);
383 540 ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code,
384 CANDIDATE_MB_TYPE_INTER, 0);
385 }
386
387 600 s2->first_slice_line = 1;
388
2/2
✓ Branch 0 taken 4450 times.
✓ Branch 1 taken 600 times.
 5050 for (y = 0; y < block_height; y++) {
389
4/4
✓ Branch 0 taken 67750 times.
✓ Branch 1 taken 4000 times.
✓ Branch 2 taken 67300 times.
✓ Branch 3 taken 450 times.
 71750 for (i = 0; i < 16 && i + 16 * y < height; i++) {
390 67300 memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
391 width);
392
2/2
✓ Branch 0 taken 203000 times.
✓ Branch 1 taken 67300 times.
 270300 for (x = width; x < 16 * block_width; x++)
393 203000 src[i * stride + x] = src[i * stride + x - 1];
394 }
395
3/4
✓ Branch 0 taken 3900 times.
✓ Branch 1 taken 4450 times.
✓ Branch 2 taken 3900 times.
✗ Branch 3 not taken.
 8350 for (; i < 16 && i + 16 * y < 16 * block_height; i++)
396 3900 memcpy(&src[i * stride], &src[(i - 1) * stride], 16 * block_width);
397
398 4450 s2->mb_y = y;
399
2/2
✓ Branch 0 taken 68950 times.
✓ Branch 1 taken 4450 times.
 73400 for (x = 0; x < block_width; x++) {
400 uint8_t reorder_buffer[2][6][7 * 32];
401 int count[2][6];
402 68950 int offset = y * 16 * stride + x * 16;
403 68950 uint8_t *decoded = decoded_plane + offset;
404 68950 const uint8_t *ref = ref_plane + offset;
405 68950 int score[4] = { 0, 0, 0, 0 }, best;
406 68950 uint8_t *temp = s->scratchbuf;
407
408
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 68950 times.
 68950 if (put_bytes_left(pb, 0) < 3000) { // FIXME: check size
409 ✗ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
410 ✗ return -1;
411 }
412
413 68950 s2->mb_x = x;
414 68950 init_block_index(s2);
415
416
2/2
✓ Branch 0 taken 62055 times.
✓ Branch 1 taken 6895 times.
 68950 if (s->pict_type == AV_PICTURE_TYPE_I ||
417
2/2
✓ Branch 0 taken 3450 times.
✓ Branch 1 taken 58605 times.
 62055 (s->m.mb_type[x + y * s2->mb_stride] &
418 CANDIDATE_MB_TYPE_INTRA)) {
419
2/2
✓ Branch 0 taken 62070 times.
✓ Branch 1 taken 10345 times.
 72415 for (i = 0; i < 6; i++)
420 62070 init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i],
421 7 * 32);
422
2/2
✓ Branch 0 taken 3450 times.
✓ Branch 1 taken 6895 times.
 10345 if (s->pict_type == AV_PICTURE_TYPE_P) {
423 3450 put_bits(&s->reorder_pb[5], SVQ1_BLOCK_INTRA_LEN, SVQ1_BLOCK_INTRA_CODE);
424 3450 score[0] = SVQ1_BLOCK_INTRA_LEN * lambda;
425 }
426 10345 score[0] += encode_block(s, src + 16 * x, src + 16 * x /* unused */,
427 temp, stride, 5, 64, lambda, 1);
428
2/2
✓ Branch 0 taken 62070 times.
✓ Branch 1 taken 10345 times.
 72415 for (i = 0; i < 6; i++) {
429 62070 count[0][i] = put_bits_count(&s->reorder_pb[i]);
430 62070 flush_put_bits(&s->reorder_pb[i]);
431 }
432 } else
433 58605 score[0] = INT_MAX;
434
435 68950 best = 0;
436
437
2/2
✓ Branch 0 taken 62055 times.
✓ Branch 1 taken 6895 times.
 68950 if (s->pict_type == AV_PICTURE_TYPE_P) {
438 int mx, my, pred_x, pred_y, dxy;
439 int16_t *motion_ptr;
440
441 62055 motion_ptr = ff_h263_pred_motion(s2, 0, 0, &pred_x, &pred_y);
442
2/2
✓ Branch 0 taken 58605 times.
✓ Branch 1 taken 3450 times.
 62055 if (s->m.mb_type[x + y * s2->mb_stride] &
443 CANDIDATE_MB_TYPE_INTER) {
444
2/2
✓ Branch 0 taken 351630 times.
✓ Branch 1 taken 58605 times.
 410235 for (i = 0; i < 6; i++)
445 351630 init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i],
446 7 * 32);
447
448 58605 put_bits(&s->reorder_pb[5], SVQ1_BLOCK_INTER_LEN, SVQ1_BLOCK_INTER_CODE);
449
450 58605 mx = motion_ptr[0];
451 58605 my = motion_ptr[1];
452 av_assert1(mx >= -32 && mx <= 31);
453 av_assert1(my >= -32 && my <= 31);
454 av_assert1(pred_x >= -32 && pred_x <= 31);
455 av_assert1(pred_y >= -32 && pred_y <= 31);
456 58605 ff_h263_encode_motion(&s->reorder_pb[5], mx - pred_x, 1);
457 58605 ff_h263_encode_motion(&s->reorder_pb[5], my - pred_y, 1);
458 58605 score[1] += lambda * put_bits_count(&s->reorder_pb[5]);
459
460 58605 dxy = (mx & 1) + 2 * (my & 1);
461
462 58605 s2->hdsp.put_pixels_tab[0][dxy](temp + 16*stride,
463 58605 ref + (mx >> 1) +
464 58605 stride * (my >> 1),
465 stride, 16);
466
467 58605 score[1] += encode_block(s, src + 16 * x, temp + 16*stride,
468 decoded, stride, 5, 64, lambda, 0);
469 58605 best = score[1] <= score[0];
470
471 58605 score[2] = s->mecc.sse[0](NULL, src + 16 * x, ref,
472 stride, 16);
473 58605 score[2] += SVQ1_BLOCK_SKIP_LEN * lambda;
474
6/6
✓ Branch 0 taken 119 times.
✓ Branch 1 taken 58486 times.
✓ Branch 2 taken 88 times.
✓ Branch 3 taken 31 times.
✓ Branch 4 taken 83 times.
✓ Branch 5 taken 5 times.
 58605 if (score[2] < score[best] && mx == 0 && my == 0) {
475 83 best = 2;
476 83 s2->hdsp.put_pixels_tab[0][0](decoded, ref, stride, 16);
477 83 put_bits(pb, SVQ1_BLOCK_SKIP_LEN, SVQ1_BLOCK_SKIP_CODE);
478 }
479 }
480
481
2/2
✓ Branch 0 taken 58522 times.
✓ Branch 1 taken 3533 times.
 62055 if (best == 1) {
482
2/2
✓ Branch 0 taken 351132 times.
✓ Branch 1 taken 58522 times.
 409654 for (i = 0; i < 6; i++) {
483 351132 count[1][i] = put_bits_count(&s->reorder_pb[i]);
484 351132 flush_put_bits(&s->reorder_pb[i]);
485 }
486 } else {
487 3533 motion_ptr[0] =
488 3533 motion_ptr[1] =
489 3533 motion_ptr[2] =
490 3533 motion_ptr[3] =
491 3533 motion_ptr[0 + 2 * s2->b8_stride] =
492 3533 motion_ptr[1 + 2 * s2->b8_stride] =
493 3533 motion_ptr[2 + 2 * s2->b8_stride] =
494 3533 motion_ptr[3 + 2 * s2->b8_stride] = 0;
495 }
496 }
497
498 68950 s->rd_total += score[best];
499
500
2/2
✓ Branch 0 taken 68867 times.
✓ Branch 1 taken 83 times.
 68950 if (best != 2)
501
2/2
✓ Branch 0 taken 413202 times.
✓ Branch 1 taken 68867 times.
 482069 for (i = 5; i >= 0; i--)
502 413202 ff_copy_bits(pb, reorder_buffer[best][i],
503 count[best][i]);
504
2/2
✓ Branch 0 taken 10345 times.
✓ Branch 1 taken 58605 times.
 68950 if (best == 0)
505 10345 s2->hdsp.put_pixels_tab[0][0](decoded, temp, stride, 16);
506 }
507 4450 s2->first_slice_line = 0;
508 }
509 600 return 0;
510 }
511
512 4 static av_cold int svq1_encode_end(AVCodecContext *avctx)
513 {
514 4 SVQ1EncContext *const s = avctx->priv_data;
515 int i;
516
517
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 if (avctx->frame_num)
518 4 av_log(avctx, AV_LOG_DEBUG, "RD: %f\n",
519 4 s->rd_total / (double)(avctx->width * avctx->height *
520 4 avctx->frame_num));
521
522 4 av_freep(&s->m.me.scratchpad);
523 4 av_freep(&s->mb_type);
524 4 av_freep(&s->dummy);
525 4 av_freep(&s->scratchbuf);
526
527
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 4 times.
 16 for (i = 0; i < 3; i++) {
528 12 av_freep(&s->motion_val8[i]);
529 12 av_freep(&s->motion_val16[i]);
530 }
531
532 4 av_frame_free(&s->current_picture);
533 4 av_frame_free(&s->last_picture);
534 4 av_frame_free(&s->m.new_pic);
535
536 4 return 0;
537 }
538
539 4 static av_cold int write_ident(AVCodecContext *avctx, const char *ident)
540 {
541 4 int size = strlen(ident);
542 4 avctx->extradata = av_malloc(size + 8);
543
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (!avctx->extradata)
544 ✗ return AVERROR(ENOMEM);
545 4 AV_WB32(avctx->extradata, size + 8);
546 4 AV_WL32(avctx->extradata + 4, MKTAG('S', 'V', 'Q', '1'));
547 4 memcpy(avctx->extradata + 8, ident, size);
548 4 avctx->extradata_size = size + 8;
549 4 return 0;
550 }
551
552 4 static av_cold int svq1_encode_init(AVCodecContext *avctx)
553 {
554 4 SVQ1EncContext *const s = avctx->priv_data;
555 int ret;
556
557
2/4
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 4 times.
 4 if (avctx->width >= 4096 || avctx->height >= 4096) {
558 ✗ av_log(avctx, AV_LOG_ERROR, "Dimensions too large, maximum is 4095x4095\n");
559 ✗ return AVERROR(EINVAL);
560 }
561
562 4 ff_hpeldsp_init(&s->m.c.hdsp, avctx->flags);
563 4 ff_me_cmp_init(&s->mecc, avctx);
564 4 ret = ff_me_init(&s->m.me, avctx, &s->mecc, 0);
565
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (ret < 0)
566 ✗ return ret;
567 4 ff_mpegvideoencdsp_init(&s->m.mpvencdsp, avctx);
568
569 4 s->current_picture = av_frame_alloc();
570 4 s->last_picture = av_frame_alloc();
571
2/4
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 4 times.
 4 if (!s->current_picture || !s->last_picture) {
572 ✗ return AVERROR(ENOMEM);
573 }
574 4 ret = ff_encode_alloc_frame(avctx, s->current_picture);
575
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (ret < 0)
576 ✗ return ret;
577 4 ret = ff_encode_alloc_frame(avctx, s->last_picture);
578
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (ret < 0)
579 ✗ return ret;
580 4 s->scratchbuf = av_malloc_array(s->current_picture->linesize[0], 16 * 3);
581
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (!s->scratchbuf)
582 ✗ return AVERROR(ENOMEM);
583
584 4 s->frame_width = avctx->width;
585 4 s->frame_height = avctx->height;
586
587 4 s->y_block_width = (s->frame_width + 15) / 16;
588 4 s->y_block_height = (s->frame_height + 15) / 16;
589
590 4 s->avctx = avctx;
591 4 s->m.c.avctx = avctx;
592
593
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 4 times.
 16 for (size_t plane = 0; plane < FF_ARRAY_ELEMS(s->motion_val16); ++plane) {
594
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 4 times.
 12 const int shift = plane ? 2 : 0;
595 12 unsigned block_height = ((s->frame_height >> shift) + 15U) / 16;
596 12 unsigned block_width = ((s->frame_width >> shift) + 15U) / 16;
597
598 12 s->motion_val8[plane] = av_calloc((2 * block_width + 1) * block_height * 2 + 2,
599 2 * sizeof(int16_t));
600 12 s->motion_val16[plane] = av_calloc((block_width + 1) * (block_height + 2) + 1,
601 2 * sizeof(int16_t));
602
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
 12 if (!s->motion_val8[plane] || !s->motion_val16[plane])
603 ✗ return AVERROR(ENOMEM);
604 }
605
606 4 s->m.c.picture_structure = PICT_FRAME;
607 4 s->m.me.temp =
608 8 s->m.me.scratchpad = av_mallocz((avctx->width + 64) *
609 4 2 * 16 * 2 * sizeof(uint8_t));
610 8 s->mb_type = av_mallocz((s->y_block_width + 1) *
611 4 s->y_block_height * sizeof(int16_t));
612 8 s->dummy = av_mallocz((s->y_block_width + 1) *
613 4 s->y_block_height * sizeof(int32_t));
614 4 s->m.new_pic = av_frame_alloc();
615
616
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 if (!s->m.me.scratchpad ||
617
3/6
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 4 times.
 4 !s->mb_type || !s->dummy || !s->m.new_pic)
618 ✗ return AVERROR(ENOMEM);
619
620 4 ff_svq1enc_init(&s->svq1encdsp);
621
622 4 s->m.me.mv_penalty = ff_h263_get_mv_penalty();
623
624
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 return write_ident(avctx, s->avctx->flags & AV_CODEC_FLAG_BITEXACT ? "Lavc" : LIBAVCODEC_IDENT);
625 }
626
627 200 static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
628 const AVFrame *pict, int *got_packet)
629 {
630 200 SVQ1EncContext *const s = avctx->priv_data;
631 PutBitContext pb;
632 int i, ret;
633
634 200 ret = ff_alloc_packet(avctx, pkt, s->y_block_width * s->y_block_height *
635 200 MAX_MB_BYTES * 3 + FF_INPUT_BUFFER_MIN_SIZE);
636
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 200 times.
 200 if (ret < 0)
637 ✗ return ret;
638
639 200 FFSWAP(AVFrame*, s->current_picture, s->last_picture);
640
641
3/4
✓ Branch 0 taken 200 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 180 times.
✓ Branch 3 taken 20 times.
 200 if (avctx->gop_size && (avctx->frame_num % avctx->gop_size))
642 180 s->pict_type = AV_PICTURE_TYPE_P;
643 else
644 20 s->pict_type = AV_PICTURE_TYPE_I;
645 200 s->quality = pict->quality;
646
647 200 ff_encode_add_stats_side_data(pkt, pict->quality, NULL, 0, s->pict_type);
648
649 200 init_put_bits(&pb, pkt->data, pkt->size);
650 200 svq1_write_header(s, &pb, s->pict_type);
651
2/2
✓ Branch 0 taken 600 times.
✓ Branch 1 taken 200 times.
 800 for (i = 0; i < 3; i++) {
652 1800 int ret = svq1_encode_plane(s, i, &pb,
653 600 pict->data[i],
654 600 s->last_picture->data[i],
655 600 s->current_picture->data[i],
656
2/2
✓ Branch 0 taken 400 times.
✓ Branch 1 taken 200 times.
 600 s->frame_width / (i ? 4 : 1),
657 600 s->frame_height / (i ? 4 : 1),
658 600 pict->linesize[i],
659
2/2
✓ Branch 0 taken 400 times.
✓ Branch 1 taken 200 times.
 600 s->current_picture->linesize[i]);
660 600 emms_c();
661
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 600 times.
 600 if (ret < 0)
662 ✗ return ret;
663 }
664
665 // align_put_bits(&pb);
666
2/2
✓ Branch 1 taken 3154 times.
✓ Branch 2 taken 200 times.
 3354 while (put_bits_count(&pb) & 31)
667 3154 put_bits(&pb, 1, 0);
668
669 200 flush_put_bits(&pb);
670
671 200 pkt->size = put_bytes_output(&pb);
672
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 180 times.
 200 if (s->pict_type == AV_PICTURE_TYPE_I)
673 20 pkt->flags |= AV_PKT_FLAG_KEY;
674 200 *got_packet = 1;
675
676 200 return 0;
677 }
678
679 #define OFFSET(x) offsetof(struct SVQ1EncContext, x)
680 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
681 static const AVOption options[] = {
682 { "motion-est", "Motion estimation algorithm", OFFSET(m.me.motion_est), AV_OPT_TYPE_INT, { .i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, VE, .unit = "motion-est"},
683 { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion-est" },
684 { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion-est" },
685 { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion-est" },
686
687 { NULL },
688 };
689
690 static const AVClass svq1enc_class = {
691 .class_name = "svq1enc",
692 .item_name = av_default_item_name,
693 .option = options,
694 .version = LIBAVUTIL_VERSION_INT,
695 };
696
697 const FFCodec ff_svq1_encoder = {
698 .p.name = "svq1",
699 CODEC_LONG_NAME("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
700 .p.type = AVMEDIA_TYPE_VIDEO,
701 .p.id = AV_CODEC_ID_SVQ1,
702 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
703 .priv_data_size = sizeof(SVQ1EncContext),
704 .p.priv_class = &svq1enc_class,
705 .init = svq1_encode_init,
706 FF_CODEC_ENCODE_CB(svq1_encode_frame),
707 .close = svq1_encode_end,
708 CODEC_PIXFMTS(AV_PIX_FMT_YUV410P),
709 .color_ranges = AVCOL_RANGE_MPEG,
710 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
711 };
712