FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/svq1enc.c
Date: 2026-08-19 01:31:13
Exec Total Coverage
Lines: 348 362 96.1%
Functions: 8 8 100.0%
Branches: 161 186 86.6%
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 typedef struct SVQ1EncContext {
52 /* FIXME: Needed for motion estimation, should not be used for anything
53 * else, the idea is to make the motion estimation eventually independent
54 * of MPVEncContext, so this will be removed then. */
55 MPVEncContext m;
56 AVCodecContext *avctx;
57 MECmpContext mecc;
58 AVFrame *current_picture;
59 AVFrame *last_picture;
60
61 /* Some compression statistics */
62 enum AVPictureType pict_type;
63 int quality;
64
65 /* why ooh why this sick breadth first order,
66 * everything is slower and more complex */
67 PutBitContext reorder_pb[6];
68
69 int frame_width;
70 int frame_height;
71
72 /* Y plane block dimensions */
73 int y_block_width;
74 int y_block_height;
75
76 DECLARE_ALIGNED(16, int16_t, encoded_block_levels)[6][7][256];
77
78 uint16_t *mb_type;
79 uint32_t *dummy;
80 int16_t (*motion_val8[3])[2];
81 int16_t (*motion_val16[3])[2];
82
83 int64_t rd_total;
84
85 uint8_t *scratchbuf;
86
87 SVQ1EncDSPContext svq1encdsp;
88 } SVQ1EncContext;
89
90 200 static void svq1_write_header(SVQ1EncContext *s, PutBitContext *pb, int frame_type)
91 {
92 int i;
93
94 /* frame code */
95 200 put_bits(pb, 22, 0x20);
96
97 /* temporal reference (sure hope this is a "don't care") */
98 200 put_bits(pb, 8, 0x00);
99
100 /* frame type */
101 200 put_bits(pb, 2, frame_type - 1);
102
103
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 180 times.
 200 if (frame_type == AV_PICTURE_TYPE_I) {
104 /* no checksum since frame code is 0x20 */
105 /* no embedded string either */
106 /* output 5 unknown bits (2 + 2 + 1) */
107 20 put_bits(pb, 5, 2); /* 2 needed by quicktime decoder */
108
109 20 i = ff_match_2uint16(ff_svq1_frame_size_table,
110 FF_ARRAY_ELEMS(ff_svq1_frame_size_table),
111 s->frame_width, s->frame_height);
112 20 put_bits(pb, 3, i);
113
114
2/2
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 15 times.
 20 if (i == 7) {
115 5 put_bits(pb, 12, s->frame_width);
116 5 put_bits(pb, 12, s->frame_height);
117 }
118 }
119
120 /* no checksum or extra data (next 2 bits get 0) */
121 200 put_bits(pb, 2, 0);
122 200 }
123
124 #define QUALITY_THRESHOLD 100
125 #define THRESHOLD_MULTIPLIER 0.6
126
127 4302522 static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref,
128 uint8_t *decoded, int stride, unsigned level,
129 int threshold, int lambda, int intra)
130 {
131
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4302522 times.
 4302522 av_assume(level <= 5U); // Workaround for GCC bug 102513
132
133 int count, y, x, i, j, split, best_mean, best_score, best_count;
134 int best_vector[6];
135 4302522 int block_sum[7] = { 0, 0, 0, 0, 0, 0 };
136 4302522 int w = 2 << (level + 2 >> 1);
137 4302522 int h = 2 << (level + 1 >> 1);
138 4302522 int size = w * h;
139 4302522 int16_t (*block)[256] = s->encoded_block_levels[level];
140 const int8_t *codebook_sum, *codebook;
141 const uint16_t(*mean_vlc)[2];
142 const uint8_t(*multistage_vlc)[2];
143
144 4302522 best_score = 0;
145 // FIXME: Optimize, this does not need to be done multiple times.
146
2/2
✓ Branch 0 taken 643715 times.
✓ Branch 1 taken 3658807 times.
 4302522 if (intra) {
147 // level is 5 when encode_block is called from svq1_encode_plane
148 // and always < 4 when called recursively from this function.
149
2/2
✓ Branch 0 taken 612686 times.
✓ Branch 1 taken 31029 times.
 643715 codebook_sum = level < 4 ? svq1_intra_codebook_sum[level] : NULL;
150 643715 codebook = ff_svq1_intra_codebooks[level];
151 643715 mean_vlc = ff_svq1_intra_mean_vlc;
152 643715 multistage_vlc = ff_svq1_intra_multistage_vlc[level];
153
2/2
✓ Branch 0 taken 2296676 times.
✓ Branch 1 taken 643715 times.
 2940391 for (y = 0; y < h; y++) {
154
2/2
✓ Branch 0 taken 15798160 times.
✓ Branch 1 taken 2296676 times.
 18094836 for (x = 0; x < w; x++) {
155 15798160 int v = src[x + y * stride];
156 15798160 block[0][x + w * y] = v;
157 15798160 best_score += v * v;
158 15798160 block_sum[0] += v;
159 }
160 }
161 } else {
162 // level is 5 or < 4, see above for details.
163
2/2
✓ Branch 0 taken 3483018 times.
✓ Branch 1 taken 175789 times.
 3658807 codebook_sum = level < 4 ? svq1_inter_codebook_sum[level] : NULL;
164 3658807 codebook = ff_svq1_inter_codebooks[level];
165 3658807 mean_vlc = ff_svq1_inter_mean_vlc + 256;
166 3658807 multistage_vlc = ff_svq1_inter_multistage_vlc[level];
167
2/2
✓ Branch 0 taken 13044696 times.
✓ Branch 1 taken 3658807 times.
 16703503 for (y = 0; y < h; y++) {
168
2/2
✓ Branch 0 taken 89655008 times.
✓ Branch 1 taken 13044696 times.
 102699704 for (x = 0; x < w; x++) {
169 89655008 int v = src[x + y * stride] - ref[x + y * stride];
170 89655008 block[0][x + w * y] = v;
171 89655008 best_score += v * v;
172 89655008 block_sum[0] += v;
173 }
174 }
175 }
176
177 4302522 best_count = 0;
178 4302522 best_score -= (int)((unsigned)block_sum[0] * block_sum[0] >> (level + 3));
179 4302522 best_mean = block_sum[0] + (size >> 1) >> (level + 3);
180
181
2/2
✓ Branch 0 taken 4095704 times.
✓ Branch 1 taken 206818 times.
 4302522 if (level < 4) {
182
2/2
✓ Branch 0 taken 24574224 times.
✓ Branch 1 taken 4095704 times.
 28669928 for (count = 1; count < 7; count++) {
183 24574224 int best_vector_score = INT_MAX;
184 24574224 int best_vector_sum = -999, best_vector_mean = -999;
185 24574224 const int stage = count - 1;
186 const int8_t *vector;
187
188
2/2
✓ Branch 0 taken 393187584 times.
✓ Branch 1 taken 24574224 times.
 417761808 for (i = 0; i < 16; i++) {
189 393187584 int sum = codebook_sum[stage * 16 + i];
190 int sqr, diff, score;
191
192 393187584 vector = codebook + stage * size * 16 + i * size;
193 393187584 sqr = s->svq1encdsp.ssd_int8_vs_int16(vector, block[stage], size);
194 393187584 diff = block_sum[stage] - sum;
195 393187584 score = sqr - (diff * (int64_t)diff >> (level + 3)); // FIXME: 64 bits slooow
196
2/2
✓ Branch 0 taken 65426753 times.
✓ Branch 1 taken 327760831 times.
 393187584 if (score < best_vector_score) {
197 65426753 int mean = diff + (size >> 1) >> (level + 3);
198 av_assert2(mean > -300 && mean < 300);
199
2/2
✓ Branch 0 taken 9912177 times.
✓ Branch 1 taken 55514576 times.
 65426753 mean = av_clip(mean, intra ? 0 : -256, 255);
200 65426753 best_vector_score = score;
201 65426753 best_vector[stage] = i;
202 65426753 best_vector_sum = sum;
203 65426753 best_vector_mean = mean;
204 }
205 }
206
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 24574224 times.
 24574224 av_assert0(best_vector_mean != -999);
207 24574224 vector = codebook + stage * size * 16 + best_vector[stage] * size;
208
2/2
✓ Branch 0 taken 420929184 times.
✓ Branch 1 taken 24574224 times.
 445503408 for (j = 0; j < size; j++)
209 420929184 block[stage + 1][j] = block[stage][j] - vector[j];
210 24574224 block_sum[stage + 1] = block_sum[stage] - best_vector_sum;
211 24574224 best_vector_score += lambda *
212 24574224 (+1 + 4 * count +
213 24574224 multistage_vlc[1 + count][1]
214 24574224 + mean_vlc[best_vector_mean][1]);
215
216
2/2
✓ Branch 0 taken 5416629 times.
✓ Branch 1 taken 19157595 times.
 24574224 if (best_vector_score < best_score) {
217 5416629 best_score = best_vector_score;
218 5416629 best_count = count;
219 5416629 best_mean = best_vector_mean;
220 }
221 }
222 }
223
224
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 4302510 times.
 4302522 if (best_mean == -128)
225 12 best_mean = -127;
226
2/2
✓ Branch 0 taken 6210 times.
✓ Branch 1 taken 4296300 times.
 4302510 else if (best_mean == 128)
227 6210 best_mean = 127;
228
229 4302522 split = 0;
230
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) {
231 2116786 int score = 0;
232
2/2
✓ Branch 0 taken 1431267 times.
✓ Branch 1 taken 685519 times.
 2116786 int offset = level & 1 ? stride * h / 2 : w / 2;
233 PutBitContext backup[6];
234
235
2/2
✓ Branch 0 taken 3903357 times.
✓ Branch 1 taken 2116786 times.
 6020143 for (i = level - 1; i >= 0; i--)
236 3903357 backup[i] = s->reorder_pb[i];
237 2116786 score += encode_block(s, src, ref, decoded, stride, level - 1,
238 threshold >> 1, lambda, intra);
239 2116786 score += encode_block(s, src + offset, ref + offset, decoded + offset,
240 stride, level - 1, threshold >> 1, lambda, intra);
241 2116786 score += lambda;
242
243
2/2
✓ Branch 0 taken 1359243 times.
✓ Branch 1 taken 757543 times.
 2116786 if (score < best_score) {
244 1359243 best_score = score;
245 1359243 split = 1;
246 } else {
247
2/2
✓ Branch 0 taken 1046147 times.
✓ Branch 1 taken 757543 times.
 1803690 for (i = level - 1; i >= 0; i--)
248 1046147 s->reorder_pb[i] = backup[i];
249 }
250 }
251
2/2
✓ Branch 0 taken 2127616 times.
✓ Branch 1 taken 2174906 times.
 4302522 if (level > 0)
252 2127616 put_bits(&s->reorder_pb[level], 1, split);
253
254
2/2
✓ Branch 0 taken 2943279 times.
✓ Branch 1 taken 1359243 times.
 4302522 if (!split) {
255 av_assert1(best_mean >= 0 && best_mean < 256 || !intra);
256 av_assert1(best_mean >= -256 && best_mean < 256);
257 av_assert1(best_count >= 0 && best_count < 7);
258 av_assert1(level < 4 || best_count == 0);
259
260 /* output the encoding */
261 2943279 put_bits(&s->reorder_pb[level],
262 2943279 multistage_vlc[1 + best_count][1],
263 2943279 multistage_vlc[1 + best_count][0]);
264 2943279 put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],
265 2943279 mean_vlc[best_mean][0]);
266
267
2/2
✓ Branch 0 taken 3649044 times.
✓ Branch 1 taken 2943279 times.
 6592323 for (i = 0; i < best_count; i++) {
268 av_assert2(best_vector[i] >= 0 && best_vector[i] < 16);
269 3649044 put_bits(&s->reorder_pb[level], 4, best_vector[i]);
270 }
271
272
2/2
✓ Branch 0 taken 7680728 times.
✓ Branch 1 taken 2943279 times.
 10624007 for (y = 0; y < h; y++)
273
2/2
✓ Branch 0 taken 36196848 times.
✓ Branch 1 taken 7680728 times.
 43877576 for (x = 0; x < w; x++)
274 36196848 decoded[x + y * stride] = src[x + y * stride] -
275 36196848 block[best_count][x + w * y] +
276 best_mean;
277 }
278
279 4302522 return best_score;
280 }
281
282 131005 static void init_block_index(MpegEncContext *const s)
283 {
284 131005 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) + s->mb_x*2;
285 131005 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) + 1 + s->mb_x*2;
286 131005 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) + s->mb_x*2;
287 131005 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) + 1 + s->mb_x*2;
288 131005 }
289
290 600 static int svq1_encode_plane(SVQ1EncContext *s, int plane,
291 PutBitContext *pb,
292 const unsigned char *src_plane,
293 unsigned char *ref_plane,
294 unsigned char *decoded_plane,
295 int width, int height, int src_stride, int stride)
296 {
297 600 MpegEncContext *const s2 = &s->m.c;
298 int x, y;
299 int i;
300 int block_width, block_height;
301 int level;
302 int threshold[6];
303 600 uint8_t *src = s->scratchbuf + stride * 32;
304 600 const int lambda = (s->quality * s->quality) >>
305 (2 * FF_LAMBDA_SHIFT);
306
307 /* figure out the acceptable level thresholds in advance */
308 600 threshold[5] = QUALITY_THRESHOLD;
309
2/2
✓ Branch 0 taken 3000 times.
✓ Branch 1 taken 600 times.
 3600 for (level = 4; level >= 0; level--)
310 3000 threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER;
311
312 600 block_width = (width + 15) / 16;
313 600 block_height = (height + 15) / 16;
314
315
2/2
✓ Branch 0 taken 540 times.
✓ Branch 1 taken 60 times.
 600 if (s->pict_type == AV_PICTURE_TYPE_P) {
316 540 s2->last_pic.data[0] = ref_plane;
317 540 s2->linesize =
318 540 s2->last_pic.linesize[0] =
319 540 s->m.new_pic->linesize[0] =
320 540 s2->cur_pic.linesize[0] = stride;
321 540 s2->width = width;
322 540 s2->height = height;
323 540 s2->mb_width = block_width;
324 540 s2->mb_height = block_height;
325 540 s2->mb_stride = s2->mb_width + 1;
326 540 s2->b8_stride = 2 * s2->mb_width + 1;
327 540 s->m.f_code = 1;
328 540 s2->pict_type = s->pict_type;
329 540 s->m.me.scene_change_score = 0;
330 // s2->out_format = FMT_H263;
331 // s->m.me.unrestricted_mv = 1;
332 540 s->m.lambda = s->quality;
333 540 s2->qscale = s->m.lambda * 139 +
334 540 FF_LAMBDA_SCALE * 64 >>
335 FF_LAMBDA_SHIFT + 7;
336 540 s->m.lambda2 = s->m.lambda * s->m.lambda +
337 540 FF_LAMBDA_SCALE / 2 >>
338 FF_LAMBDA_SHIFT;
339
340 540 s->m.mb_type = s->mb_type;
341
342 // dummies, to avoid segfaults
343 540 s->m.mb_mean = (uint8_t *)s->dummy;
344 540 s->m.mb_var = (uint16_t *)s->dummy;
345 540 s->m.mc_mb_var = (uint16_t *)s->dummy;
346 540 s2->cur_pic.mb_type = s->dummy;
347
348 540 s2->cur_pic.motion_val[0] = s->motion_val8[plane] + 2;
349 540 s->m.p_mv_table = s->motion_val16[plane] +
350 540 s2->mb_stride + 1;
351 540 ff_me_init_pic(&s->m);
352
353 540 s->m.me.dia_size = s->avctx->dia_size;
354 540 s2->first_slice_line = 1;
355
2/2
✓ Branch 0 taken 4005 times.
✓ Branch 1 taken 540 times.
 4545 for (y = 0; y < block_height; y++) {
356 4005 s->m.new_pic->data[0] = src - y * 16 * stride; // ugly
357 4005 s2->mb_y = y;
358
359
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++) {
360 60570 memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
361 width);
362
2/2
✓ Branch 0 taken 182700 times.
✓ Branch 1 taken 60570 times.
 243270 for (x = width; x < 16 * block_width; x++)
363 182700 src[i * stride + x] = src[i * stride + x - 1];
364 }
365
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++)
366 3510 memcpy(&src[i * stride], &src[(i - 1) * stride],
367 3510 16 * block_width);
368
369
2/2
✓ Branch 0 taken 62055 times.
✓ Branch 1 taken 4005 times.
 66060 for (x = 0; x < block_width; x++) {
370 62055 s2->mb_x = x;
371 62055 init_block_index(s2);
372
373 62055 ff_estimate_p_frame_motion(&s->m, x, y);
374 }
375 4005 s2->first_slice_line = 0;
376 }
377
378 540 ff_fix_long_p_mvs(&s->m, CANDIDATE_MB_TYPE_INTRA);
379 540 ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code,
380 CANDIDATE_MB_TYPE_INTER, 0);
381 }
382
383 600 s2->first_slice_line = 1;
384
2/2
✓ Branch 0 taken 4450 times.
✓ Branch 1 taken 600 times.
 5050 for (y = 0; y < block_height; y++) {
385
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++) {
386 67300 memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
387 width);
388
2/2
✓ Branch 0 taken 203000 times.
✓ Branch 1 taken 67300 times.
 270300 for (x = width; x < 16 * block_width; x++)
389 203000 src[i * stride + x] = src[i * stride + x - 1];
390 }
391
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++)
392 3900 memcpy(&src[i * stride], &src[(i - 1) * stride], 16 * block_width);
393
394 4450 s2->mb_y = y;
395
2/2
✓ Branch 0 taken 68950 times.
✓ Branch 1 taken 4450 times.
 73400 for (x = 0; x < block_width; x++) {
396 uint8_t reorder_buffer[2][6][7 * 32];
397 int count[2][6];
398 68950 int offset = y * 16 * stride + x * 16;
399 68950 uint8_t *decoded = decoded_plane + offset;
400 68950 const uint8_t *ref = ref_plane + offset;
401 68950 int score[4] = { 0, 0, 0, 0 }, best;
402 68950 uint8_t *temp = s->scratchbuf;
403
404
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 68950 times.
 68950 if (put_bytes_left(pb, 0) < 3000) { // FIXME: check size
405 ✗ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
406 ✗ return -1;
407 }
408
409 68950 s2->mb_x = x;
410 68950 init_block_index(s2);
411
412
2/2
✓ Branch 0 taken 62055 times.
✓ Branch 1 taken 6895 times.
 68950 if (s->pict_type == AV_PICTURE_TYPE_I ||
413
2/2
✓ Branch 0 taken 3450 times.
✓ Branch 1 taken 58605 times.
 62055 (s->m.mb_type[x + y * s2->mb_stride] &
414 CANDIDATE_MB_TYPE_INTRA)) {
415
2/2
✓ Branch 0 taken 62070 times.
✓ Branch 1 taken 10345 times.
 72415 for (i = 0; i < 6; i++)
416 62070 init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i],
417 7 * 32);
418
2/2
✓ Branch 0 taken 3450 times.
✓ Branch 1 taken 6895 times.
 10345 if (s->pict_type == AV_PICTURE_TYPE_P) {
419 3450 put_bits(&s->reorder_pb[5], SVQ1_BLOCK_INTRA_LEN, SVQ1_BLOCK_INTRA_CODE);
420 3450 score[0] = SVQ1_BLOCK_INTRA_LEN * lambda;
421 }
422 10345 score[0] += encode_block(s, src + 16 * x, src + 16 * x /* unused */,
423 temp, stride, 5, 64, lambda, 1);
424
2/2
✓ Branch 0 taken 62070 times.
✓ Branch 1 taken 10345 times.
 72415 for (i = 0; i < 6; i++) {
425 62070 count[0][i] = put_bits_count(&s->reorder_pb[i]);
426 62070 flush_put_bits(&s->reorder_pb[i]);
427 }
428 } else
429 58605 score[0] = INT_MAX;
430
431 68950 best = 0;
432
433
2/2
✓ Branch 0 taken 62055 times.
✓ Branch 1 taken 6895 times.
 68950 if (s->pict_type == AV_PICTURE_TYPE_P) {
434 int mx, my, pred_x, pred_y, dxy;
435 int16_t *motion_ptr;
436
437 62055 motion_ptr = ff_h263_pred_motion(s2, 0, 0, &pred_x, &pred_y);
438
2/2
✓ Branch 0 taken 58605 times.
✓ Branch 1 taken 3450 times.
 62055 if (s->m.mb_type[x + y * s2->mb_stride] &
439 CANDIDATE_MB_TYPE_INTER) {
440
2/2
✓ Branch 0 taken 351630 times.
✓ Branch 1 taken 58605 times.
 410235 for (i = 0; i < 6; i++)
441 351630 init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i],
442 7 * 32);
443
444 58605 put_bits(&s->reorder_pb[5], SVQ1_BLOCK_INTER_LEN, SVQ1_BLOCK_INTER_CODE);
445
446 58605 mx = motion_ptr[0];
447 58605 my = motion_ptr[1];
448 av_assert1(mx >= -32 && mx <= 31);
449 av_assert1(my >= -32 && my <= 31);
450 av_assert1(pred_x >= -32 && pred_x <= 31);
451 av_assert1(pred_y >= -32 && pred_y <= 31);
452 58605 ff_h263_encode_motion(&s->reorder_pb[5], mx - pred_x, 1);
453 58605 ff_h263_encode_motion(&s->reorder_pb[5], my - pred_y, 1);
454 58605 score[1] += lambda * put_bits_count(&s->reorder_pb[5]);
455
456 58605 dxy = (mx & 1) + 2 * (my & 1);
457
458 58605 s2->hdsp.put_pixels_tab[0][dxy](temp + 16*stride,
459 58605 ref + (mx >> 1) +
460 58605 stride * (my >> 1),
461 stride, 16);
462
463 58605 score[1] += encode_block(s, src + 16 * x, temp + 16*stride,
464 decoded, stride, 5, 64, lambda, 0);
465 58605 best = score[1] <= score[0];
466
467 58605 score[2] = s->mecc.sse[0](NULL, src + 16 * x, ref,
468 stride, 16);
469 58605 score[2] += SVQ1_BLOCK_SKIP_LEN * lambda;
470
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) {
471 83 best = 2;
472 83 s2->hdsp.put_pixels_tab[0][0](decoded, ref, stride, 16);
473 83 put_bits(pb, SVQ1_BLOCK_SKIP_LEN, SVQ1_BLOCK_SKIP_CODE);
474 }
475 }
476
477
2/2
✓ Branch 0 taken 58522 times.
✓ Branch 1 taken 3533 times.
 62055 if (best == 1) {
478
2/2
✓ Branch 0 taken 351132 times.
✓ Branch 1 taken 58522 times.
 409654 for (i = 0; i < 6; i++) {
479 351132 count[1][i] = put_bits_count(&s->reorder_pb[i]);
480 351132 flush_put_bits(&s->reorder_pb[i]);
481 }
482 } else {
483 3533 motion_ptr[0] =
484 3533 motion_ptr[1] =
485 3533 motion_ptr[2] =
486 3533 motion_ptr[3] =
487 3533 motion_ptr[0 + 2 * s2->b8_stride] =
488 3533 motion_ptr[1 + 2 * s2->b8_stride] =
489 3533 motion_ptr[2 + 2 * s2->b8_stride] =
490 3533 motion_ptr[3 + 2 * s2->b8_stride] = 0;
491 }
492 }
493
494 68950 s->rd_total += score[best];
495
496
2/2
✓ Branch 0 taken 68867 times.
✓ Branch 1 taken 83 times.
 68950 if (best != 2)
497
2/2
✓ Branch 0 taken 413202 times.
✓ Branch 1 taken 68867 times.
 482069 for (i = 5; i >= 0; i--)
498 413202 ff_copy_bits(pb, reorder_buffer[best][i],
499 count[best][i]);
500
2/2
✓ Branch 0 taken 10345 times.
✓ Branch 1 taken 58605 times.
 68950 if (best == 0)
501 10345 s2->hdsp.put_pixels_tab[0][0](decoded, temp, stride, 16);
502 }
503 4450 s2->first_slice_line = 0;
504 }
505 600 return 0;
506 }
507
508 4 static av_cold int svq1_encode_end(AVCodecContext *avctx)
509 {
510 4 SVQ1EncContext *const s = avctx->priv_data;
511 int i;
512
513
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 if (avctx->frame_num)
514 4 av_log(avctx, AV_LOG_DEBUG, "RD: %f\n",
515 4 s->rd_total / (double)(avctx->width * avctx->height *
516 4 avctx->frame_num));
517
518 4 av_freep(&s->m.me.scratchpad);
519 4 av_freep(&s->mb_type);
520 4 av_freep(&s->dummy);
521 4 av_freep(&s->scratchbuf);
522
523
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 4 times.
 16 for (i = 0; i < 3; i++) {
524 12 av_freep(&s->motion_val8[i]);
525 12 av_freep(&s->motion_val16[i]);
526 }
527
528 4 av_frame_free(&s->current_picture);
529 4 av_frame_free(&s->last_picture);
530 4 av_frame_free(&s->m.new_pic);
531
532 4 return 0;
533 }
534
535 4 static av_cold int write_ident(AVCodecContext *avctx, const char *ident)
536 {
537 4 int size = strlen(ident);
538 4 avctx->extradata = av_malloc(size + 8);
539
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (!avctx->extradata)
540 ✗ return AVERROR(ENOMEM);
541 4 AV_WB32(avctx->extradata, size + 8);
542 4 AV_WL32(avctx->extradata + 4, MKTAG('S', 'V', 'Q', '1'));
543 4 memcpy(avctx->extradata + 8, ident, size);
544 4 avctx->extradata_size = size + 8;
545 4 return 0;
546 }
547
548 4 static av_cold int svq1_encode_init(AVCodecContext *avctx)
549 {
550 4 SVQ1EncContext *const s = avctx->priv_data;
551 int ret;
552
553
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) {
554 ✗ av_log(avctx, AV_LOG_ERROR, "Dimensions too large, maximum is 4095x4095\n");
555 ✗ return AVERROR(EINVAL);
556 }
557
558 4 ff_hpeldsp_init(&s->m.c.hdsp, avctx->flags);
559 4 ff_me_cmp_init(&s->mecc, avctx);
560 4 ret = ff_me_init(&s->m.me, avctx, &s->mecc, 0);
561
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (ret < 0)
562 ✗ return ret;
563 4 ff_mpegvideoencdsp_init(&s->m.mpvencdsp, avctx);
564
565 4 s->current_picture = av_frame_alloc();
566 4 s->last_picture = av_frame_alloc();
567
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) {
568 ✗ return AVERROR(ENOMEM);
569 }
570 4 ret = ff_encode_alloc_frame(avctx, s->current_picture);
571
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (ret < 0)
572 ✗ return ret;
573 4 ret = ff_encode_alloc_frame(avctx, s->last_picture);
574
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (ret < 0)
575 ✗ return ret;
576 4 s->scratchbuf = av_malloc_array(s->current_picture->linesize[0], 16 * 3);
577
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (!s->scratchbuf)
578 ✗ return AVERROR(ENOMEM);
579
580 4 s->frame_width = avctx->width;
581 4 s->frame_height = avctx->height;
582
583 4 s->y_block_width = (s->frame_width + 15) / 16;
584 4 s->y_block_height = (s->frame_height + 15) / 16;
585
586 4 s->avctx = avctx;
587 4 s->m.c.avctx = avctx;
588
589
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) {
590
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 4 times.
 12 const int shift = plane ? 2 : 0;
591 12 unsigned block_height = ((s->frame_height >> shift) + 15U) / 16;
592 12 unsigned block_width = ((s->frame_width >> shift) + 15U) / 16;
593
594 12 s->motion_val8[plane] = av_calloc((2 * block_width + 1) * block_height * 2 + 2,
595 2 * sizeof(int16_t));
596 12 s->motion_val16[plane] = av_calloc((block_width + 1) * (block_height + 2) + 1,
597 2 * sizeof(int16_t));
598
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])
599 ✗ return AVERROR(ENOMEM);
600 }
601
602 4 s->m.c.picture_structure = PICT_FRAME;
603 4 s->m.me.temp =
604 8 s->m.me.scratchpad = av_mallocz((avctx->width + 64) *
605 4 2 * 16 * 2 * sizeof(uint8_t));
606 8 s->mb_type = av_mallocz((s->y_block_width + 1) *
607 4 s->y_block_height * sizeof(int16_t));
608 8 s->dummy = av_mallocz((s->y_block_width + 1) *
609 4 s->y_block_height * sizeof(int32_t));
610 4 s->m.new_pic = av_frame_alloc();
611
612
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 if (!s->m.me.scratchpad ||
613
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)
614 ✗ return AVERROR(ENOMEM);
615
616 4 ff_svq1enc_init(&s->svq1encdsp);
617
618 4 s->m.me.mv_penalty = ff_h263_get_mv_penalty();
619
620
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);
621 }
622
623 200 static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
624 const AVFrame *pict, int *got_packet)
625 {
626 200 SVQ1EncContext *const s = avctx->priv_data;
627 PutBitContext pb;
628 int i, ret;
629
630 200 ret = ff_alloc_packet(avctx, pkt, s->y_block_width * s->y_block_height *
631 200 MAX_MB_BYTES * 3 + FF_INPUT_BUFFER_MIN_SIZE);
632
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 200 times.
 200 if (ret < 0)
633 ✗ return ret;
634
635 200 FFSWAP(AVFrame*, s->current_picture, s->last_picture);
636
637
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))
638 180 s->pict_type = AV_PICTURE_TYPE_P;
639 else
640 20 s->pict_type = AV_PICTURE_TYPE_I;
641 200 s->quality = pict->quality;
642
643 200 ff_encode_add_stats_side_data(pkt, pict->quality, NULL, 0, s->pict_type);
644
645 200 init_put_bits(&pb, pkt->data, pkt->size);
646 200 svq1_write_header(s, &pb, s->pict_type);
647
2/2
✓ Branch 0 taken 600 times.
✓ Branch 1 taken 200 times.
 800 for (i = 0; i < 3; i++) {
648 1800 ret = svq1_encode_plane(s, i, &pb,
649 600 pict->data[i],
650 600 s->last_picture->data[i],
651 600 s->current_picture->data[i],
652
2/2
✓ Branch 0 taken 400 times.
✓ Branch 1 taken 200 times.
 600 s->frame_width / (i ? 4 : 1),
653 600 s->frame_height / (i ? 4 : 1),
654 600 pict->linesize[i],
655
2/2
✓ Branch 0 taken 400 times.
✓ Branch 1 taken 200 times.
 600 s->current_picture->linesize[i]);
656 600 emms_c();
657
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 600 times.
 600 if (ret < 0)
658 ✗ return ret;
659 }
660
661 // align_put_bits(&pb);
662
2/2
✓ Branch 1 taken 3154 times.
✓ Branch 2 taken 200 times.
 3354 while (put_bits_count(&pb) & 31)
663 3154 put_bits(&pb, 1, 0);
664
665 200 flush_put_bits(&pb);
666
667 200 pkt->size = put_bytes_output(&pb);
668
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 180 times.
 200 if (s->pict_type == AV_PICTURE_TYPE_I)
669 20 pkt->flags |= AV_PKT_FLAG_KEY;
670 200 *got_packet = 1;
671
672 200 return 0;
673 }
674
675 #define OFFSET(x) offsetof(struct SVQ1EncContext, x)
676 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
677 static const AVOption options[] = {
678 { "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"},
679 { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion-est" },
680 { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion-est" },
681 { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, .unit = "motion-est" },
682
683 { NULL },
684 };
685
686 static const AVClass svq1enc_class = {
687 .class_name = "svq1enc",
688 .item_name = av_default_item_name,
689 .option = options,
690 .version = LIBAVUTIL_VERSION_INT,
691 };
692
693 const FFCodec ff_svq1_encoder = {
694 .p.name = "svq1",
695 CODEC_LONG_NAME("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
696 .p.type = AVMEDIA_TYPE_VIDEO,
697 .p.id = AV_CODEC_ID_SVQ1,
698 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
699 .priv_data_size = sizeof(SVQ1EncContext),
700 .p.priv_class = &svq1enc_class,
701 .init = svq1_encode_init,
702 FF_CODEC_ENCODE_CB(svq1_encode_frame),
703 .close = svq1_encode_end,
704 CODEC_PIXFMTS(AV_PIX_FMT_YUV410P),
705 .color_ranges = AVCOL_RANGE_MPEG,
706 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
707 };
708