GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/svq1enc.c Lines: 358 377 95.0 %
Date: 2020-08-14 10:39:37 Branches: 162 188 86.2 %

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 "avcodec.h"
30
#include "hpeldsp.h"
31
#include "me_cmp.h"
32
#include "mpegvideo.h"
33
#include "h263.h"
34
#include "internal.h"
35
#include "mpegutils.h"
36
#include "packet_internal.h"
37
#include "svq1.h"
38
#include "svq1enc.h"
39
#include "svq1enc_cb.h"
40
#include "libavutil/avassert.h"
41
42
43
200
static void svq1_write_header(SVQ1EncContext *s, int frame_type)
44
{
45
    int i;
46
47
    /* frame code */
48
200
    put_bits(&s->pb, 22, 0x20);
49
50
    /* temporal reference (sure hope this is a "don't care") */
51
200
    put_bits(&s->pb, 8, 0x00);
52
53
    /* frame type */
54
200
    put_bits(&s->pb, 2, frame_type - 1);
55
56
200
    if (frame_type == AV_PICTURE_TYPE_I) {
57
        /* no checksum since frame code is 0x20 */
58
        /* no embedded string either */
59
        /* output 5 unknown bits (2 + 2 + 1) */
60
20
        put_bits(&s->pb, 5, 2); /* 2 needed by quicktime decoder */
61
62
20
        i = ff_match_2uint16((void*)ff_svq1_frame_size_table,
63
                             FF_ARRAY_ELEMS(ff_svq1_frame_size_table),
64
                             s->frame_width, s->frame_height);
65
20
        put_bits(&s->pb, 3, i);
66
67
20
        if (i == 7) {
68
5
            put_bits(&s->pb, 12, s->frame_width);
69
5
            put_bits(&s->pb, 12, s->frame_height);
70
        }
71
    }
72
73
    /* no checksum or extra data (next 2 bits get 0) */
74
200
    put_bits(&s->pb, 2, 0);
75
200
}
76
77
#define QUALITY_THRESHOLD    100
78
#define THRESHOLD_MULTIPLIER 0.6
79
80
393187392
static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2,
81
                               intptr_t size)
82
{
83
393187392
    int score = 0, i;
84
85
7128095808
    for (i = 0; i < size; i++)
86
6734908416
        score += (pix1[i] - pix2[i]) * (pix1[i] - pix2[i]);
87
393187392
    return score;
88
}
89
90
4302520
static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref,
91
                        uint8_t *decoded, int stride, int level,
92
                        int threshold, int lambda, int intra)
93
{
94
    int count, y, x, i, j, split, best_mean, best_score, best_count;
95
    int best_vector[6];
96
4302520
    int block_sum[7] = { 0, 0, 0, 0, 0, 0 };
97
4302520
    int w            = 2 << (level + 2 >> 1);
98
4302520
    int h            = 2 << (level + 1 >> 1);
99
4302520
    int size         = w * h;
100
4302520
    int16_t (*block)[256] = s->encoded_block_levels[level];
101
    const int8_t *codebook_sum, *codebook;
102
    const uint16_t(*mean_vlc)[2];
103
    const uint8_t(*multistage_vlc)[2];
104
105
4302520
    best_score = 0;
106
    // FIXME: Optimize, this does not need to be done multiple times.
107
4302520
    if (intra) {
108
        // level is 5 when encode_block is called from svq1_encode_plane
109
        // and always < 4 when called recursively from this function.
110
643967
        codebook_sum   = level < 4 ? svq1_intra_codebook_sum[level] : NULL;
111
643967
        codebook       = ff_svq1_intra_codebooks[level];
112
643967
        mean_vlc       = ff_svq1_intra_mean_vlc;
113
643967
        multistage_vlc = ff_svq1_intra_multistage_vlc[level];
114
2941539
        for (y = 0; y < h; y++) {
115
18101876
            for (x = 0; x < w; x++) {
116
15804304
                int v = src[x + y * stride];
117
15804304
                block[0][x + w * y] = v;
118
15804304
                best_score         += v * v;
119
15804304
                block_sum[0]       += v;
120
            }
121
        }
122
    } else {
123
        // level is 5 or < 4, see above for details.
124
3658553
        codebook_sum   = level < 4 ? svq1_inter_codebook_sum[level] : NULL;
125
3658553
        codebook       = ff_svq1_inter_codebooks[level];
126
3658553
        mean_vlc       = ff_svq1_inter_mean_vlc + 256;
127
3658553
        multistage_vlc = ff_svq1_inter_multistage_vlc[level];
128
16702413
        for (y = 0; y < h; y++) {
129
102693156
            for (x = 0; x < w; x++) {
130
89649296
                int v = src[x + y * stride] - ref[x + y * stride];
131
89649296
                block[0][x + w * y] = v;
132
89649296
                best_score         += v * v;
133
89649296
                block_sum[0]       += v;
134
            }
135
        }
136
    }
137
138
4302520
    best_count  = 0;
139
4302520
    best_score -= (int)((unsigned)block_sum[0] * block_sum[0] >> (level + 3));
140
4302520
    best_mean   = block_sum[0] + (size >> 1) >> (level + 3);
141
142
4302520
    if (level < 4) {
143
28669914
        for (count = 1; count < 7; count++) {
144
24574212
            int best_vector_score = INT_MAX;
145
24574212
            int best_vector_sum   = -999, best_vector_mean = -999;
146
24574212
            const int stage       = count - 1;
147
            const int8_t *vector;
148
149
417761604
            for (i = 0; i < 16; i++) {
150
393187392
                int sum = codebook_sum[stage * 16 + i];
151
                int sqr, diff, score;
152
153
393187392
                vector = codebook + stage * size * 16 + i * size;
154
393187392
                sqr    = s->ssd_int8_vs_int16(vector, block[stage], size);
155
393187392
                diff   = block_sum[stage] - sum;
156
393187392
                score  = sqr - (diff * (int64_t)diff >> (level + 3)); // FIXME: 64 bits slooow
157
393187392
                if (score < best_vector_score) {
158
65429340
                    int mean = diff + (size >> 1) >> (level + 3);
159
                    av_assert2(mean > -300 && mean < 300);
160
65429340
                    mean               = av_clip(mean, intra ? 0 : -256, 255);
161
65429340
                    best_vector_score  = score;
162
65429340
                    best_vector[stage] = i;
163
65429340
                    best_vector_sum    = sum;
164
65429340
                    best_vector_mean   = mean;
165
                }
166
            }
167
24574212
            av_assert0(best_vector_mean != -999);
168
24574212
            vector = codebook + stage * size * 16 + best_vector[stage] * size;
169
445505988
            for (j = 0; j < size; j++)
170
420931776
                block[stage + 1][j] = block[stage][j] - vector[j];
171
24574212
            block_sum[stage + 1] = block_sum[stage] - best_vector_sum;
172
24574212
            best_vector_score   += lambda *
173
24574212
                                   (+1 + 4 * count +
174
24574212
                                    multistage_vlc[1 + count][1]
175
24574212
                                    + mean_vlc[best_vector_mean][1]);
176
177
24574212
            if (best_vector_score < best_score) {
178
5418702
                best_score = best_vector_score;
179
5418702
                best_count = count;
180
5418702
                best_mean  = best_vector_mean;
181
            }
182
        }
183
    }
184
185
4302520
    split = 0;
186

4302520
    if (best_score > threshold && level) {
187
2116785
        int score  = 0;
188
2116785
        int offset = level & 1 ? stride * h / 2 : w / 2;
189
        PutBitContext backup[6];
190
191
6020163
        for (i = level - 1; i >= 0; i--)
192
3903378
            backup[i] = s->reorder_pb[i];
193
2116785
        score += encode_block(s, src, ref, decoded, stride, level - 1,
194
                              threshold >> 1, lambda, intra);
195
2116785
        score += encode_block(s, src + offset, ref + offset, decoded + offset,
196
                              stride, level - 1, threshold >> 1, lambda, intra);
197
2116785
        score += lambda;
198
199
2116785
        if (score < best_score) {
200
1359022
            best_score = score;
201
1359022
            split      = 1;
202
        } else {
203
1804497
            for (i = level - 1; i >= 0; i--)
204
1046734
                s->reorder_pb[i] = backup[i];
205
        }
206
    }
207
4302520
    if (level > 0)
208
2127648
        put_bits(&s->reorder_pb[level], 1, split);
209
210
4302520
    if (!split) {
211
        av_assert1(best_mean >= 0 && best_mean < 256 || !intra);
212
        av_assert1(best_mean >= -256 && best_mean < 256);
213
        av_assert1(best_count >= 0 && best_count < 7);
214
        av_assert1(level < 4 || best_count == 0);
215
216
        /* output the encoding */
217
2943498
        put_bits(&s->reorder_pb[level],
218
2943498
                 multistage_vlc[1 + best_count][1],
219
2943498
                 multistage_vlc[1 + best_count][0]);
220
2943498
        put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],
221
2943498
                 mean_vlc[best_mean][0]);
222
223
6593260
        for (i = 0; i < best_count; i++) {
224
            av_assert2(best_vector[i] >= 0 && best_vector[i] < 16);
225
3649762
            put_bits(&s->reorder_pb[level], 4, best_vector[i]);
226
        }
227
228
10625782
        for (y = 0; y < h; y++)
229
43895628
            for (x = 0; x < w; x++)
230
36213344
                decoded[x + y * stride] = src[x + y * stride] -
231
36213344
                                          block[best_count][x + w * y] +
232
                                          best_mean;
233
    }
234
235
4302520
    return best_score;
236
}
237
238
131005
static void init_block_index(MpegEncContext *s){
239
131005
    s->block_index[0]= s->b8_stride*(s->mb_y*2    )     + s->mb_x*2;
240
131005
    s->block_index[1]= s->b8_stride*(s->mb_y*2    ) + 1 + s->mb_x*2;
241
131005
    s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1)     + s->mb_x*2;
242
131005
    s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) + 1 + s->mb_x*2;
243
131005
    s->block_index[4]= s->mb_stride*(s->mb_y + 1)                + s->b8_stride*s->mb_height*2 + s->mb_x;
244
131005
    s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x;
245
131005
}
246
247
600
static int svq1_encode_plane(SVQ1EncContext *s, int plane,
248
                             unsigned char *src_plane,
249
                             unsigned char *ref_plane,
250
                             unsigned char *decoded_plane,
251
                             int width, int height, int src_stride, int stride)
252
{
253
    int x, y;
254
    int i;
255
    int block_width, block_height;
256
    int level;
257
    int threshold[6];
258
600
    uint8_t *src     = s->scratchbuf + stride * 32;
259
600
    const int lambda = (s->quality * s->quality) >>
260
                       (2 * FF_LAMBDA_SHIFT);
261
262
    /* figure out the acceptable level thresholds in advance */
263
600
    threshold[5] = QUALITY_THRESHOLD;
264
3600
    for (level = 4; level >= 0; level--)
265
3000
        threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER;
266
267
600
    block_width  = (width  + 15) / 16;
268
600
    block_height = (height + 15) / 16;
269
270
600
    if (s->pict_type == AV_PICTURE_TYPE_P) {
271
540
        s->m.avctx                         = s->avctx;
272
540
        s->m.current_picture_ptr           = &s->m.current_picture;
273
540
        s->m.last_picture_ptr              = &s->m.last_picture;
274
540
        s->m.last_picture.f->data[0]        = ref_plane;
275
540
        s->m.linesize                      =
276
540
        s->m.last_picture.f->linesize[0]    =
277
540
        s->m.new_picture.f->linesize[0]     =
278
540
        s->m.current_picture.f->linesize[0] = stride;
279
540
        s->m.width                         = width;
280
540
        s->m.height                        = height;
281
540
        s->m.mb_width                      = block_width;
282
540
        s->m.mb_height                     = block_height;
283
540
        s->m.mb_stride                     = s->m.mb_width + 1;
284
540
        s->m.b8_stride                     = 2 * s->m.mb_width + 1;
285
540
        s->m.f_code                        = 1;
286
540
        s->m.pict_type                     = s->pict_type;
287
540
        s->m.motion_est                    = s->motion_est;
288
540
        s->m.me.scene_change_score         = 0;
289
        // s->m.out_format                    = FMT_H263;
290
        // s->m.unrestricted_mv               = 1;
291
540
        s->m.lambda                        = s->quality;
292
540
        s->m.qscale                        = s->m.lambda * 139 +
293
540
                                             FF_LAMBDA_SCALE * 64 >>
294
                                             FF_LAMBDA_SHIFT + 7;
295
540
        s->m.lambda2                       = s->m.lambda * s->m.lambda +
296
540
                                             FF_LAMBDA_SCALE / 2 >>
297
                                             FF_LAMBDA_SHIFT;
298
299
540
        if (!s->motion_val8[plane]) {
300
24
            s->motion_val8[plane]  = av_mallocz((s->m.b8_stride *
301
12
                                                 block_height * 2 + 2) *
302
                                                2 * sizeof(int16_t));
303
24
            s->motion_val16[plane] = av_mallocz((s->m.mb_stride *
304
12
                                                 (block_height + 2) + 1) *
305
                                                2 * sizeof(int16_t));
306

12
            if (!s->motion_val8[plane] || !s->motion_val16[plane])
307
                return AVERROR(ENOMEM);
308
        }
309
310
540
        s->m.mb_type = s->mb_type;
311
312
        // dummies, to avoid segfaults
313
540
        s->m.current_picture.mb_mean   = (uint8_t *)s->dummy;
314
540
        s->m.current_picture.mb_var    = (uint16_t *)s->dummy;
315
540
        s->m.current_picture.mc_mb_var = (uint16_t *)s->dummy;
316
540
        s->m.current_picture.mb_type = s->dummy;
317
318
540
        s->m.current_picture.motion_val[0]   = s->motion_val8[plane] + 2;
319
540
        s->m.p_mv_table                      = s->motion_val16[plane] +
320
540
                                               s->m.mb_stride + 1;
321
540
        s->m.mecc                            = s->mecc; // move
322
540
        ff_init_me(&s->m);
323
324
540
        s->m.me.dia_size      = s->avctx->dia_size;
325
540
        s->m.first_slice_line = 1;
326
4545
        for (y = 0; y < block_height; y++) {
327
4005
            s->m.new_picture.f->data[0] = src - y * 16 * stride; // ugly
328
4005
            s->m.mb_y                  = y;
329
330

64575
            for (i = 0; i < 16 && i + 16 * y < height; i++) {
331
60570
                memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
332
                       width);
333
243270
                for (x = width; x < 16 * block_width; x++)
334
182700
                    src[i * stride + x] = src[i * stride + x - 1];
335
            }
336

7515
            for (; i < 16 && i + 16 * y < 16 * block_height; i++)
337
3510
                memcpy(&src[i * stride], &src[(i - 1) * stride],
338
3510
                       16 * block_width);
339
340
66060
            for (x = 0; x < block_width; x++) {
341
62055
                s->m.mb_x = x;
342
62055
                init_block_index(&s->m);
343
344
62055
                ff_estimate_p_frame_motion(&s->m, x, y);
345
            }
346
4005
            s->m.first_slice_line = 0;
347
        }
348
349
540
        ff_fix_long_p_mvs(&s->m, CANDIDATE_MB_TYPE_INTRA);
350
540
        ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code,
351
                        CANDIDATE_MB_TYPE_INTER, 0);
352
    }
353
354
600
    s->m.first_slice_line = 1;
355
5050
    for (y = 0; y < block_height; y++) {
356

71750
        for (i = 0; i < 16 && i + 16 * y < height; i++) {
357
67300
            memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
358
                   width);
359
270300
            for (x = width; x < 16 * block_width; x++)
360
203000
                src[i * stride + x] = src[i * stride + x - 1];
361
        }
362

8350
        for (; i < 16 && i + 16 * y < 16 * block_height; i++)
363
3900
            memcpy(&src[i * stride], &src[(i - 1) * stride], 16 * block_width);
364
365
4450
        s->m.mb_y = y;
366
73400
        for (x = 0; x < block_width; x++) {
367
            uint8_t reorder_buffer[2][6][7 * 32];
368
            int count[2][6];
369
68950
            int offset       = y * 16 * stride + x * 16;
370
68950
            uint8_t *decoded = decoded_plane + offset;
371
68950
            uint8_t *ref     = ref_plane + offset;
372
68950
            int score[4]     = { 0, 0, 0, 0 }, best;
373
68950
            uint8_t *temp    = s->scratchbuf;
374
375
137900
            if (s->pb.buf_end - s->pb.buf -
376
68950
                (put_bits_count(&s->pb) >> 3) < 3000) { // FIXME: check size
377
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
378
                return -1;
379
            }
380
381
68950
            s->m.mb_x = x;
382
68950
            init_block_index(&s->m);
383
384
68950
            if (s->pict_type == AV_PICTURE_TYPE_I ||
385
62055
                (s->m.mb_type[x + y * s->m.mb_stride] &
386
                 CANDIDATE_MB_TYPE_INTRA)) {
387
72443
                for (i = 0; i < 6; i++)
388
62094
                    init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i],
389
                                  7 * 32);
390
10349
                if (s->pict_type == AV_PICTURE_TYPE_P) {
391
3454
                    const uint8_t *vlc = ff_svq1_block_type_vlc[SVQ1_BLOCK_INTRA];
392
3454
                    put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
393
3454
                    score[0] = vlc[1] * lambda;
394
                }
395
10349
                score[0] += encode_block(s, src + 16 * x, NULL, temp, stride,
396
                                         5, 64, lambda, 1);
397
72443
                for (i = 0; i < 6; i++) {
398
62094
                    count[0][i] = put_bits_count(&s->reorder_pb[i]);
399
62094
                    flush_put_bits(&s->reorder_pb[i]);
400
                }
401
            } else
402
58601
                score[0] = INT_MAX;
403
404
68950
            best = 0;
405
406
68950
            if (s->pict_type == AV_PICTURE_TYPE_P) {
407
62055
                const uint8_t *vlc = ff_svq1_block_type_vlc[SVQ1_BLOCK_INTER];
408
                int mx, my, pred_x, pred_y, dxy;
409
                int16_t *motion_ptr;
410
411
62055
                motion_ptr = ff_h263_pred_motion(&s->m, 0, 0, &pred_x, &pred_y);
412
62055
                if (s->m.mb_type[x + y * s->m.mb_stride] &
413
                    CANDIDATE_MB_TYPE_INTER) {
414
410207
                    for (i = 0; i < 6; i++)
415
351606
                        init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i],
416
                                      7 * 32);
417
418
58601
                    put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
419
420
58601
                    s->m.pb = s->reorder_pb[5];
421
58601
                    mx      = motion_ptr[0];
422
58601
                    my      = motion_ptr[1];
423
                    av_assert1(mx     >= -32 && mx     <= 31);
424
                    av_assert1(my     >= -32 && my     <= 31);
425
                    av_assert1(pred_x >= -32 && pred_x <= 31);
426
                    av_assert1(pred_y >= -32 && pred_y <= 31);
427
58601
                    ff_h263_encode_motion(&s->m.pb, mx - pred_x, 1);
428
58601
                    ff_h263_encode_motion(&s->m.pb, my - pred_y, 1);
429
58601
                    s->reorder_pb[5] = s->m.pb;
430
58601
                    score[1]        += lambda * put_bits_count(&s->reorder_pb[5]);
431
432
58601
                    dxy = (mx & 1) + 2 * (my & 1);
433
434
58601
                    s->hdsp.put_pixels_tab[0][dxy](temp + 16*stride,
435
58601
                                                   ref + (mx >> 1) +
436
58601
                                                   stride * (my >> 1),
437
                                                   stride, 16);
438
439
58601
                    score[1] += encode_block(s, src + 16 * x, temp + 16*stride,
440
                                             decoded, stride, 5, 64, lambda, 0);
441
58601
                    best      = score[1] <= score[0];
442
443
58601
                    vlc       = ff_svq1_block_type_vlc[SVQ1_BLOCK_SKIP];
444
58601
                    score[2]  = s->mecc.sse[0](NULL, src + 16 * x, ref,
445
                                               stride, 16);
446
58601
                    score[2] += vlc[1] * lambda;
447

58601
                    if (score[2] < score[best] && mx == 0 && my == 0) {
448
84
                        best = 2;
449
84
                        s->hdsp.put_pixels_tab[0][0](decoded, ref, stride, 16);
450
84
                        put_bits(&s->pb, vlc[1], vlc[0]);
451
                    }
452
                }
453
454
62055
                if (best == 1) {
455
409619
                    for (i = 0; i < 6; i++) {
456
351102
                        count[1][i] = put_bits_count(&s->reorder_pb[i]);
457
351102
                        flush_put_bits(&s->reorder_pb[i]);
458
                    }
459
                } else {
460
3538
                    motion_ptr[0]                      =
461
3538
                    motion_ptr[1]                      =
462
3538
                    motion_ptr[2]                      =
463
3538
                    motion_ptr[3]                      =
464
3538
                    motion_ptr[0 + 2 * s->m.b8_stride] =
465
3538
                    motion_ptr[1 + 2 * s->m.b8_stride] =
466
3538
                    motion_ptr[2 + 2 * s->m.b8_stride] =
467
3538
                    motion_ptr[3 + 2 * s->m.b8_stride] = 0;
468
                }
469
            }
470
471
68950
            s->rd_total += score[best];
472
473
68950
            if (best != 2)
474
482062
            for (i = 5; i >= 0; i--)
475
413196
                avpriv_copy_bits(&s->pb, reorder_buffer[best][i],
476
                                 count[best][i]);
477
68950
            if (best == 0)
478
10349
                s->hdsp.put_pixels_tab[0][0](decoded, temp, stride, 16);
479
        }
480
4450
        s->m.first_slice_line = 0;
481
    }
482
600
    return 0;
483
}
484
485
4
static av_cold int svq1_encode_end(AVCodecContext *avctx)
486
{
487
4
    SVQ1EncContext *const s = avctx->priv_data;
488
    int i;
489
490
4
    av_log(avctx, AV_LOG_DEBUG, "RD: %f\n",
491
4
           s->rd_total / (double)(avctx->width * avctx->height *
492
4
                                  avctx->frame_number));
493
494
4
    s->m.mb_type = NULL;
495
4
    ff_mpv_common_end(&s->m);
496
497
4
    av_freep(&s->m.me.scratchpad);
498
4
    av_freep(&s->m.me.map);
499
4
    av_freep(&s->m.me.score_map);
500
4
    av_freep(&s->mb_type);
501
4
    av_freep(&s->dummy);
502
4
    av_freep(&s->scratchbuf);
503
504
16
    for (i = 0; i < 3; i++) {
505
12
        av_freep(&s->motion_val8[i]);
506
12
        av_freep(&s->motion_val16[i]);
507
    }
508
509
4
    av_frame_free(&s->current_picture);
510
4
    av_frame_free(&s->last_picture);
511
512
4
    return 0;
513
}
514
515
4
static av_cold int svq1_encode_init(AVCodecContext *avctx)
516
{
517
4
    SVQ1EncContext *const s = avctx->priv_data;
518
    int ret;
519
520

4
    if (avctx->width >= 4096 || avctx->height >= 4096) {
521
        av_log(avctx, AV_LOG_ERROR, "Dimensions too large, maximum is 4095x4095\n");
522
        return AVERROR(EINVAL);
523
    }
524
525
4
    ff_hpeldsp_init(&s->hdsp, avctx->flags);
526
4
    ff_me_cmp_init(&s->mecc, avctx);
527
4
    ff_mpegvideoencdsp_init(&s->m.mpvencdsp, avctx);
528
529
4
    s->current_picture = av_frame_alloc();
530
4
    s->last_picture    = av_frame_alloc();
531

4
    if (!s->current_picture || !s->last_picture) {
532
        return AVERROR(ENOMEM);
533
    }
534
535
4
    s->frame_width  = avctx->width;
536
4
    s->frame_height = avctx->height;
537
538
4
    s->y_block_width  = (s->frame_width  + 15) / 16;
539
4
    s->y_block_height = (s->frame_height + 15) / 16;
540
541
4
    s->c_block_width  = (s->frame_width  / 4 + 15) / 16;
542
4
    s->c_block_height = (s->frame_height / 4 + 15) / 16;
543
544
4
    s->avctx               = avctx;
545
4
    s->m.avctx             = avctx;
546
547
4
    if ((ret = ff_mpv_common_init(&s->m)) < 0) {
548
        return ret;
549
    }
550
551
4
    s->m.picture_structure = PICT_FRAME;
552
4
    s->m.me.temp           =
553
8
    s->m.me.scratchpad     = av_mallocz((avctx->width + 64) *
554
4
                                        2 * 16 * 2 * sizeof(uint8_t));
555
4
    s->m.me.map            = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));
556
4
    s->m.me.score_map      = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));
557
8
    s->mb_type             = av_mallocz((s->y_block_width + 1) *
558
4
                                        s->y_block_height * sizeof(int16_t));
559
8
    s->dummy               = av_mallocz((s->y_block_width + 1) *
560
4
                                        s->y_block_height * sizeof(int32_t));
561
4
    s->ssd_int8_vs_int16   = ssd_int8_vs_int16_c;
562
563

4
    if (!s->m.me.temp || !s->m.me.scratchpad || !s->m.me.map ||
564

4
        !s->m.me.score_map || !s->mb_type || !s->dummy) {
565
        return AVERROR(ENOMEM);
566
    }
567
568
    if (ARCH_PPC)
569
        ff_svq1enc_init_ppc(s);
570
    if (ARCH_X86)
571
4
        ff_svq1enc_init_x86(s);
572
573
4
    ff_h263_encode_init(&s->m); // mv_penalty
574
575
4
    return 0;
576
}
577
578
200
static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
579
                             const AVFrame *pict, int *got_packet)
580
{
581
200
    SVQ1EncContext *const s = avctx->priv_data;
582
    int i, ret;
583
584
200
    if ((ret = ff_alloc_packet2(avctx, pkt, s->y_block_width * s->y_block_height *
585
200
                             MAX_MB_BYTES*3 + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
586
        return ret;
587
588
200
    if (avctx->pix_fmt != AV_PIX_FMT_YUV410P) {
589
        av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");
590
        return -1;
591
    }
592
593
200
    if (!s->current_picture->data[0]) {
594
4
        if ((ret = ff_get_buffer(avctx, s->current_picture, 0)) < 0) {
595
            return ret;
596
        }
597
    }
598
200
    if (!s->last_picture->data[0]) {
599
4
        ret = ff_get_buffer(avctx, s->last_picture, 0);
600
4
        if (ret < 0)
601
            return ret;
602
    }
603
200
    if (!s->scratchbuf) {
604
4
        s->scratchbuf = av_malloc_array(s->current_picture->linesize[0], 16 * 3);
605
4
        if (!s->scratchbuf)
606
            return AVERROR(ENOMEM);
607
    }
608
609
200
    FFSWAP(AVFrame*, s->current_picture, s->last_picture);
610
611
200
    init_put_bits(&s->pb, pkt->data, pkt->size);
612
613

200
    if (avctx->gop_size && (avctx->frame_number % avctx->gop_size))
614
180
        s->pict_type = AV_PICTURE_TYPE_P;
615
    else
616
20
        s->pict_type = AV_PICTURE_TYPE_I;
617
200
    s->quality = pict->quality;
618
619
#if FF_API_CODED_FRAME
620
FF_DISABLE_DEPRECATION_WARNINGS
621
200
    avctx->coded_frame->pict_type = s->pict_type;
622
200
    avctx->coded_frame->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
623
FF_ENABLE_DEPRECATION_WARNINGS
624
#endif
625
626
200
    ff_side_data_set_encoder_stats(pkt, pict->quality, NULL, 0, s->pict_type);
627
628
200
    svq1_write_header(s, s->pict_type);
629
800
    for (i = 0; i < 3; i++) {
630
1800
        int ret = svq1_encode_plane(s, i,
631
600
                              pict->data[i],
632
600
                              s->last_picture->data[i],
633
600
                              s->current_picture->data[i],
634
600
                              s->frame_width  / (i ? 4 : 1),
635
600
                              s->frame_height / (i ? 4 : 1),
636
                              pict->linesize[i],
637
600
                              s->current_picture->linesize[i]);
638
600
        emms_c();
639
600
        if (ret < 0) {
640
            int j;
641
            for (j = 0; j < i; j++) {
642
                av_freep(&s->motion_val8[j]);
643
                av_freep(&s->motion_val16[j]);
644
            }
645
            av_freep(&s->scratchbuf);
646
            return -1;
647
        }
648
    }
649
650
    // avpriv_align_put_bits(&s->pb);
651
3365
    while (put_bits_count(&s->pb) & 31)
652
3165
        put_bits(&s->pb, 1, 0);
653
654
200
    flush_put_bits(&s->pb);
655
656
200
    pkt->size = put_bits_count(&s->pb) / 8;
657
200
    if (s->pict_type == AV_PICTURE_TYPE_I)
658
20
        pkt->flags |= AV_PKT_FLAG_KEY;
659
200
    *got_packet = 1;
660
661
200
    return 0;
662
}
663
664
#define OFFSET(x) offsetof(struct SVQ1EncContext, x)
665
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
666
static const AVOption options[] = {
667
    { "motion-est", "Motion estimation algorithm", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, VE, "motion-est"},
668
        { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion-est" },
669
        { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion-est" },
670
        { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion-est" },
671
672
    { NULL },
673
};
674
675
static const AVClass svq1enc_class = {
676
    .class_name = "svq1enc",
677
    .item_name  = av_default_item_name,
678
    .option     = options,
679
    .version    = LIBAVUTIL_VERSION_INT,
680
};
681
682
AVCodec ff_svq1_encoder = {
683
    .name           = "svq1",
684
    .long_name      = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
685
    .type           = AVMEDIA_TYPE_VIDEO,
686
    .id             = AV_CODEC_ID_SVQ1,
687
    .priv_data_size = sizeof(SVQ1EncContext),
688
    .priv_class     = &svq1enc_class,
689
    .init           = svq1_encode_init,
690
    .encode2        = svq1_encode_frame,
691
    .close          = svq1_encode_end,
692
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
693
    .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV410P,
694
                                                     AV_PIX_FMT_NONE },
695
};