FFmpeg: libavcodec/svq1enc.c Source File

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svq1enc.c

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1 /*

2 * SVQ1 Encoder

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 */

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 */

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 "svq1.h"

37 #include "svq1enc.h"

38 #include "svq1enc_cb.h"

39 #include "libavutil/avassert.h"

42 static void svq1_write_header(SVQ1EncContext *s, int frame_type)

43 {

44 int i;

46 /* frame code */

47 put_bits(&s->pb, 22, 0x20);

49 /* temporal reference (sure hope this is a "don't care") */

50 put_bits(&s->pb, 8, 0x00);

52 /* frame type */

53 put_bits(&s->pb, 2, frame_type - 1);

55 if (frame_type == AV_PICTURE_TYPE_I) {

56 /* no checksum since frame code is 0x20 */

57 /* no embedded string either */

58 /* output 5 unknown bits (2 + 2 + 1) */

59 put_bits(&s->pb, 5, 2); /* 2 needed by quicktime decoder */

61 i = ff_match_2uint16((void*)ff_svq1_frame_size_table,

62 FF_ARRAY_ELEMS(ff_svq1_frame_size_table),

63 s->frame_width, s->frame_height);

64 put_bits(&s->pb, 3, i);

66 if (i == 7) {

67 put_bits(&s->pb, 12, s->frame_width);

68 put_bits(&s->pb, 12, s->frame_height);

69 }

70 }

72 /* no checksum or extra data (next 2 bits get 0) */

73 put_bits(&s->pb, 2, 0);

74 }

76 #define QUALITY_THRESHOLD 100

77 #define THRESHOLD_MULTIPLIER 0.6

79 static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2,

80 intptr_t size)

81 {

82 int score = 0, i;

84 for (i = 0; i < size; i++)

85 score += (pix1[i] - pix2[i]) * (pix1[i] - pix2[i]);

86 return score;

87 }

89 static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref,

90 uint8_t *decoded, int stride, int level,

91 int threshold, int lambda, int intra)

92 {

93 int count, y, x, i, j, split, best_mean, best_score, best_count;

94 int best_vector[6];

95 int block_sum[7] = { 0, 0, 0, 0, 0, 0 };

96 int w = 2 << (level + 2 >> 1);

97 int h = 2 << (level + 1 >> 1);

98 int size = w * h;

99 int16_t (*block)[256] = s->encoded_block_levels[level];

100 const int8_t *codebook_sum, *codebook;

101 const uint16_t(*mean_vlc)[2];

102 const uint8_t(*multistage_vlc)[2];

103

104 best_score = 0;

105 // FIXME: Optimize, this does not need to be done multiple times.

106 if (intra) {

107 // level is 5 when encode_block is called from svq1_encode_plane

108 // and always < 4 when called recursively from this function.

109 codebook_sum = level < 4 ? svq1_intra_codebook_sum[level] : NULL;

110 codebook = ff_svq1_intra_codebooks[level];

111 mean_vlc = ff_svq1_intra_mean_vlc;

112 multistage_vlc = ff_svq1_intra_multistage_vlc[level];

113 for (y = 0; y < h; y++) {

114 for (x = 0; x < w; x++) {

115 int v = src[x + y * stride];

116 block[0][x + w * y] = v;

117 best_score += v * v;

118 block_sum[0] += v;

119 }

120 }

121 } else {

122 // level is 5 or < 4, see above for details.

123 codebook_sum = level < 4 ? svq1_inter_codebook_sum[level] : NULL;

124 codebook = ff_svq1_inter_codebooks[level];

125 mean_vlc = ff_svq1_inter_mean_vlc + 256;

126 multistage_vlc = ff_svq1_inter_multistage_vlc[level];

127 for (y = 0; y < h; y++) {

128 for (x = 0; x < w; x++) {

129 int v = src[x + y * stride] - ref[x + y * stride];

130 block[0][x + w * y] = v;

131 best_score += v * v;

132 block_sum[0] += v;

133 }

134 }

135 }

136

137 best_count = 0;

138 best_score -= (int)((unsigned)block_sum[0] * block_sum[0] >> (level + 3));

139 best_mean = block_sum[0] + (size >> 1) >> (level + 3);

140

141 if (level < 4) {

142 for (count = 1; count < 7; count++) {

143 int best_vector_score = INT_MAX;

144 int best_vector_sum = -999, best_vector_mean = -999;

145 const int stage = count - 1;

146 const int8_t *vector;

147

148 for (i = 0; i < 16; i++) {

149 int sum = codebook_sum[stage * 16 + i];

150 int sqr, diff, score;

151

152 vector = codebook + stage * size * 16 + i * size;

153 sqr = s->ssd_int8_vs_int16(vector, block[stage], size);

154 diff = block_sum[stage] - sum;

155 score = sqr - (diff * (int64_t)diff >> (level + 3)); // FIXME: 64 bits slooow

156 if (score < best_vector_score) {

157 int mean = diff + (size >> 1) >> (level + 3);

158 av_assert2(mean > -300 && mean < 300);

159 mean = av_clip(mean, intra ? 0 : -256, 255);

160 best_vector_score = score;

161 best_vector[stage] = i;

162 best_vector_sum = sum;

163 best_vector_mean = mean;

164 }

165 }

166 av_assert0(best_vector_mean != -999);

167 vector = codebook + stage * size * 16 + best_vector[stage] * size;

168 for (j = 0; j < size; j++)

169 block[stage + 1][j] = block[stage][j] - vector[j];

170 block_sum[stage + 1] = block_sum[stage] - best_vector_sum;

171 best_vector_score += lambda *

172 (+1 + 4 * count +

173 multistage_vlc[1 + count][1]

174 + mean_vlc[best_vector_mean][1]);

175

176 if (best_vector_score < best_score) {

177 best_score = best_vector_score;

178 best_count = count;

179 best_mean = best_vector_mean;

180 }

181 }

182 }

183

184 split = 0;

185 if (best_score > threshold && level) {

186 int score = 0;

187 int offset = level & 1 ? stride * h / 2 : w / 2;

188 PutBitContext backup[6];

189

190 for (i = level - 1; i >= 0; i--)

191 backup[i] = s->reorder_pb[i];

192 score += encode_block(s, src, ref, decoded, stride, level - 1,

193 threshold >> 1, lambda, intra);

194 score += encode_block(s, src + offset, ref + offset, decoded + offset,

195 stride, level - 1, threshold >> 1, lambda, intra);

196 score += lambda;

197

198 if (score < best_score) {

199 best_score = score;

200 split = 1;

201 } else {

202 for (i = level - 1; i >= 0; i--)

203 s->reorder_pb[i] = backup[i];

204 }

205 }

206 if (level > 0)

207 put_bits(&s->reorder_pb[level], 1, split);

208

209 if (!split) {

210 av_assert1(best_mean >= 0 && best_mean < 256 || !intra);

211 av_assert1(best_mean >= -256 && best_mean < 256);

212 av_assert1(best_count >= 0 && best_count < 7);

213 av_assert1(level < 4 || best_count == 0);

214

215 /* output the encoding */

216 put_bits(&s->reorder_pb[level],

217 multistage_vlc[1 + best_count][1],

218 multistage_vlc[1 + best_count][0]);

219 put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],

220 mean_vlc[best_mean][0]);

221

222 for (i = 0; i < best_count; i++) {

223 av_assert2(best_vector[i] >= 0 && best_vector[i] < 16);

224 put_bits(&s->reorder_pb[level], 4, best_vector[i]);

225 }

226

227 for (y = 0; y < h; y++)

228 for (x = 0; x < w; x++)

229 decoded[x + y * stride] = src[x + y * stride] -

230 block[best_count][x + w * y] +

231 best_mean;

232 }

233

234 return best_score;

235 }

236

237 static void init_block_index(MpegEncContext *s){

238 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) + s->mb_x*2;

239 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) + 1 + s->mb_x*2;

240 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) + s->mb_x*2;

241 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) + 1 + s->mb_x*2;

242 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x;

243 s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x;

244 }

245

246 static int svq1_encode_plane(SVQ1EncContext *s, int plane,

247 unsigned char *src_plane,

248 unsigned char *ref_plane,

249 unsigned char *decoded_plane,

250 int width, int height, int src_stride, int stride)

251 {

252 int x, y;

253 int i;

254 int block_width, block_height;

255 int level;

256 int threshold[6];

257 uint8_t *src = s->scratchbuf + stride * 32;

258 const int lambda = (s->quality * s->quality) >>

259 (2 * FF_LAMBDA_SHIFT);

260

261 /* figure out the acceptable level thresholds in advance */

262 threshold[5] = QUALITY_THRESHOLD;

263 for (level = 4; level >= 0; level--)

264 threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER;

265

266 block_width = (width + 15) / 16;

267 block_height = (height + 15) / 16;

268

269 if (s->pict_type == AV_PICTURE_TYPE_P) {

270 s->m.avctx = s->avctx;

271 s->m.current_picture_ptr = &s->m.current_picture;

272 s->m.last_picture_ptr = &s->m.last_picture;

273 s->m.last_picture.f->data[0] = ref_plane;

274 s->m.linesize =

275 s->m.last_picture.f->linesize[0] =

276 s->m.new_picture.f->linesize[0] =

277 s->m.current_picture.f->linesize[0] = stride;

278 s->m.width = width;

279 s->m.height = height;

280 s->m.mb_width = block_width;

281 s->m.mb_height = block_height;

282 s->m.mb_stride = s->m.mb_width + 1;

283 s->m.b8_stride = 2 * s->m.mb_width + 1;

284 s->m.f_code = 1;

285 s->m.pict_type = s->pict_type;

286 s->m.motion_est = s->motion_est;

287 s->m.me.scene_change_score = 0;

288 // s->m.out_format = FMT_H263;

289 // s->m.unrestricted_mv = 1;

290 s->m.lambda = s->quality;

291 s->m.qscale = s->m.lambda * 139 +

292 FF_LAMBDA_SCALE * 64 >>

293 FF_LAMBDA_SHIFT + 7;

294 s->m.lambda2 = s->m.lambda * s->m.lambda +

295 FF_LAMBDA_SCALE / 2 >>

296 FF_LAMBDA_SHIFT;

297

298 if (!s->motion_val8[plane]) {

299 s->motion_val8[plane] = av_mallocz((s->m.b8_stride *

300 block_height * 2 + 2) *

301 2 * sizeof(int16_t));

302 s->motion_val16[plane] = av_mallocz((s->m.mb_stride *

303 (block_height + 2) + 1) *

304 2 * sizeof(int16_t));

305 if (!s->motion_val8[plane] || !s->motion_val16[plane])

306 return AVERROR(ENOMEM);

307 }

308

309 s->m.mb_type = s->mb_type;

310

311 // dummies, to avoid segfaults

312 s->m.current_picture.mb_mean = (uint8_t *)s->dummy;

313 s->m.current_picture.mb_var = (uint16_t *)s->dummy;

314 s->m.current_picture.mc_mb_var = (uint16_t *)s->dummy;

315 s->m.current_picture.mb_type = s->dummy;

316

317 s->m.current_picture.motion_val[0] = s->motion_val8[plane] + 2;

318 s->m.p_mv_table = s->motion_val16[plane] +

319 s->m.mb_stride + 1;

320 s->m.mecc = s->mecc; // move

321 ff_init_me(&s->m);

322

323 s->m.me.dia_size = s->avctx->dia_size;

324 s->m.first_slice_line = 1;

325 for (y = 0; y < block_height; y++) {

326 s->m.new_picture.f->data[0] = src - y * 16 * stride; // ugly

327 s->m.mb_y = y;

328

329 for (i = 0; i < 16 && i + 16 * y < height; i++) {

330 memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],

331 width);

332 for (x = width; x < 16 * block_width; x++)

333 src[i * stride + x] = src[i * stride + x - 1];

334 }

335 for (; i < 16 && i + 16 * y < 16 * block_height; i++)

336 memcpy(&src[i * stride], &src[(i - 1) * stride],

337 16 * block_width);

338

339 for (x = 0; x < block_width; x++) {

340 s->m.mb_x = x;

341 init_block_index(&s->m);

342

343 ff_estimate_p_frame_motion(&s->m, x, y);

344 }

345 s->m.first_slice_line = 0;

346 }

347

348 ff_fix_long_p_mvs(&s->m);

349 ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code,

350 CANDIDATE_MB_TYPE_INTER, 0);

351 }

352

353 s->m.first_slice_line = 1;

354 for (y = 0; y < block_height; y++) {

355 for (i = 0; i < 16 && i + 16 * y < height; i++) {

356 memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],

357 width);

358 for (x = width; x < 16 * block_width; x++)

359 src[i * stride + x] = src[i * stride + x - 1];

360 }

361 for (; i < 16 && i + 16 * y < 16 * block_height; i++)

362 memcpy(&src[i * stride], &src[(i - 1) * stride], 16 * block_width);

363

364 s->m.mb_y = y;

365 for (x = 0; x < block_width; x++) {

366 uint8_t reorder_buffer[2][6][7 * 32];

367 int count[2][6];

368 int offset = y * 16 * stride + x * 16;

369 uint8_t *decoded = decoded_plane + offset;

370 uint8_t *ref = ref_plane + offset;

371 int score[4] = { 0, 0, 0, 0 }, best;

372 uint8_t *temp = s->scratchbuf;

373

374 if (s->pb.buf_end - s->pb.buf -

375 (put_bits_count(&s->pb) >> 3) < 3000) { // FIXME: check size

376 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");

377 return -1;

378 }

379

380 s->m.mb_x = x;

381 init_block_index(&s->m);

382

383 if (s->pict_type == AV_PICTURE_TYPE_I ||

384 (s->m.mb_type[x + y * s->m.mb_stride] &

385 CANDIDATE_MB_TYPE_INTRA)) {

386 for (i = 0; i < 6; i++)

387 init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i],

388 7 * 32);

389 if (s->pict_type == AV_PICTURE_TYPE_P) {

390 const uint8_t *vlc = ff_svq1_block_type_vlc[SVQ1_BLOCK_INTRA];

391 put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);

392 score[0] = vlc[1] * lambda;

393 }

394 score[0] += encode_block(s, src + 16 * x, NULL, temp, stride,

395 5, 64, lambda, 1);

396 for (i = 0; i < 6; i++) {

397 count[0][i] = put_bits_count(&s->reorder_pb[i]);

398 flush_put_bits(&s->reorder_pb[i]);

399 }

400 } else

401 score[0] = INT_MAX;

402

403 best = 0;

404

405 if (s->pict_type == AV_PICTURE_TYPE_P) {

406 const uint8_t *vlc = ff_svq1_block_type_vlc[SVQ1_BLOCK_INTER];

407 int mx, my, pred_x, pred_y, dxy;

408 int16_t *motion_ptr;

409

410 motion_ptr = ff_h263_pred_motion(&s->m, 0, 0, &pred_x, &pred_y);

411 if (s->m.mb_type[x + y * s->m.mb_stride] &

412 CANDIDATE_MB_TYPE_INTER) {

413 for (i = 0; i < 6; i++)

414 init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i],

415 7 * 32);

416

417 put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);

418

419 s->m.pb = s->reorder_pb[5];

420 mx = motion_ptr[0];

421 my = motion_ptr[1];

422 av_assert1(mx >= -32 && mx <= 31);

423 av_assert1(my >= -32 && my <= 31);

424 av_assert1(pred_x >= -32 && pred_x <= 31);

425 av_assert1(pred_y >= -32 && pred_y <= 31);

426 ff_h263_encode_motion(&s->m.pb, mx - pred_x, 1);

427 ff_h263_encode_motion(&s->m.pb, my - pred_y, 1);

428 s->reorder_pb[5] = s->m.pb;

429 score[1] += lambda * put_bits_count(&s->reorder_pb[5]);

430

431 dxy = (mx & 1) + 2 * (my & 1);

432

433 s->hdsp.put_pixels_tab[0][dxy](temp + 16*stride,

434 ref + (mx >> 1) +

435 stride * (my >> 1),

436 stride, 16);

437

438 score[1] += encode_block(s, src + 16 * x, temp + 16*stride,

439 decoded, stride, 5, 64, lambda, 0);

440 best = score[1] <= score[0];

441

442 vlc = ff_svq1_block_type_vlc[SVQ1_BLOCK_SKIP];

443 score[2] = s->mecc.sse[0](NULL, src + 16 * x, ref,

444 stride, 16);

445 score[2] += vlc[1] * lambda;

446 if (score[2] < score[best] && mx == 0 && my == 0) {

447 best = 2;

448 s->hdsp.put_pixels_tab[0][0](decoded, ref, stride, 16);

449 put_bits(&s->pb, vlc[1], vlc[0]);

450 }

451 }

452

453 if (best == 1) {

454 for (i = 0; i < 6; i++) {

455 count[1][i] = put_bits_count(&s->reorder_pb[i]);

456 flush_put_bits(&s->reorder_pb[i]);

457 }

458 } else {

459 motion_ptr[0] =

460 motion_ptr[1] =

461 motion_ptr[2] =

462 motion_ptr[3] =

463 motion_ptr[0 + 2 * s->m.b8_stride] =

464 motion_ptr[1 + 2 * s->m.b8_stride] =

465 motion_ptr[2 + 2 * s->m.b8_stride] =

466 motion_ptr[3 + 2 * s->m.b8_stride] = 0;

467 }

468 }

469

470 s->rd_total += score[best];

471

472 if (best != 2)

473 for (i = 5; i >= 0; i--)

474 avpriv_copy_bits(&s->pb, reorder_buffer[best][i],

475 count[best][i]);

476 if (best == 0)

477 s->hdsp.put_pixels_tab[0][0](decoded, temp, stride, 16);

478 }

479 s->m.first_slice_line = 0;

480 }

481 return 0;

482 }

483

484 static av_cold int svq1_encode_end(AVCodecContext *avctx)

485 {

486 SVQ1EncContext *const s = avctx->priv_data;

487 int i;

488

489 av_log(avctx, AV_LOG_DEBUG, "RD: %f\n",

490 s->rd_total / (double)(avctx->width * avctx->height *

491 avctx->frame_number));

492

493 s->m.mb_type = NULL;

494 ff_mpv_common_end(&s->m);

495

496 av_freep(&s->m.me.scratchpad);

497 av_freep(&s->m.me.map);

498 av_freep(&s->m.me.score_map);

499 av_freep(&s->mb_type);

500 av_freep(&s->dummy);

501 av_freep(&s->scratchbuf);

502

503 for (i = 0; i < 3; i++) {

504 av_freep(&s->motion_val8[i]);

505 av_freep(&s->motion_val16[i]);

506 }

507

508 av_frame_free(&s->current_picture);

509 av_frame_free(&s->last_picture);

510

511 return 0;

512 }

513

514 static av_cold int svq1_encode_init(AVCodecContext *avctx)

515 {

516 SVQ1EncContext *const s = avctx->priv_data;

517 int ret;

518

519 if (avctx->width >= 4096 || avctx->height >= 4096) {

520 av_log(avctx, AV_LOG_ERROR, "Dimensions too large, maximum is 4095x4095\n");

521 return AVERROR(EINVAL);

522 }

523

524 ff_hpeldsp_init(&s->hdsp, avctx->flags);

525 ff_me_cmp_init(&s->mecc, avctx);

526 ff_mpegvideoencdsp_init(&s->m.mpvencdsp, avctx);

527

528 s->current_picture = av_frame_alloc();

529 s->last_picture = av_frame_alloc();

530 if (!s->current_picture || !s->last_picture) {

531 svq1_encode_end(avctx);

532 return AVERROR(ENOMEM);

533 }

534

535 s->frame_width = avctx->width;

536 s->frame_height = avctx->height;

537

538 s->y_block_width = (s->frame_width + 15) / 16;

539 s->y_block_height = (s->frame_height + 15) / 16;

540

541 s->c_block_width = (s->frame_width / 4 + 15) / 16;

542 s->c_block_height = (s->frame_height / 4 + 15) / 16;

543

544 s->avctx = avctx;

545 s->m.avctx = avctx;

546

547 if ((ret = ff_mpv_common_init(&s->m)) < 0) {

548 svq1_encode_end(avctx);

549 return ret;

550 }

551

552 s->m.picture_structure = PICT_FRAME;

553 s->m.me.temp =

554 s->m.me.scratchpad = av_mallocz((avctx->width + 64) *

555 2 * 16 * 2 * sizeof(uint8_t));

556 s->m.me.map = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));

557 s->m.me.score_map = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));

558 s->mb_type = av_mallocz((s->y_block_width + 1) *

559 s->y_block_height * sizeof(int16_t));

560 s->dummy = av_mallocz((s->y_block_width + 1) *

561 s->y_block_height * sizeof(int32_t));

562 s->ssd_int8_vs_int16 = ssd_int8_vs_int16_c;

563

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

565 !s->m.me.score_map || !s->mb_type || !s->dummy) {

566 svq1_encode_end(avctx);

567 return AVERROR(ENOMEM);

568 }

569

570 if (ARCH_PPC)

571 ff_svq1enc_init_ppc(s);

572 if (ARCH_X86)

573 ff_svq1enc_init_x86(s);

574

575 ff_h263_encode_init(&s->m); // mv_penalty

576

577 return 0;

578 }

579

580 static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt,

581 const AVFrame *pict, int *got_packet)

582 {

583 SVQ1EncContext *const s = avctx->priv_data;

584 int i, ret;

585

586 if ((ret = ff_alloc_packet2(avctx, pkt, s->y_block_width * s->y_block_height *

587 MAX_MB_BYTES*3 + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)

588 return ret;

589

590 if (avctx->pix_fmt != AV_PIX_FMT_YUV410P) {

591 av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");

592 return -1;

593 }

594

595 if (!s->current_picture->data[0]) {

596 if ((ret = ff_get_buffer(avctx, s->current_picture, 0)) < 0) {

597 return ret;

598 }

599 }

600 if (!s->last_picture->data[0]) {

601 ret = ff_get_buffer(avctx, s->last_picture, 0);

602 if (ret < 0)

603 return ret;

604 }

605 if (!s->scratchbuf) {

606 s->scratchbuf = av_malloc_array(s->current_picture->linesize[0], 16 * 3);

607 if (!s->scratchbuf)

608 return AVERROR(ENOMEM);

609 }

610

611 FFSWAP(AVFrame*, s->current_picture, s->last_picture);

612

613 init_put_bits(&s->pb, pkt->data, pkt->size);

614

615 if (avctx->gop_size && (avctx->frame_number % avctx->gop_size))

616 s->pict_type = AV_PICTURE_TYPE_P;

617 else

618 s->pict_type = AV_PICTURE_TYPE_I;

619 s->quality = pict->quality;

620

621 #if FF_API_CODED_FRAME

622 FF_DISABLE_DEPRECATION_WARNINGS

623 avctx->coded_frame->pict_type = s->pict_type;

624 avctx->coded_frame->key_frame = s->pict_type == AV_PICTURE_TYPE_I;

625 FF_ENABLE_DEPRECATION_WARNINGS

626 #endif

627

628 ff_side_data_set_encoder_stats(pkt, pict->quality, NULL, 0, s->pict_type);

629

630 svq1_write_header(s, s->pict_type);

631 for (i = 0; i < 3; i++) {

632 int ret = svq1_encode_plane(s, i,

633 pict->data[i],

634 s->last_picture->data[i],

635 s->current_picture->data[i],

636 s->frame_width / (i ? 4 : 1),

637 s->frame_height / (i ? 4 : 1),

638 pict->linesize[i],

639 s->current_picture->linesize[i]);

640 emms_c();

641 if (ret < 0) {

642 int j;

643 for (j = 0; j < i; j++) {

644 av_freep(&s->motion_val8[j]);

645 av_freep(&s->motion_val16[j]);

646 }

647 av_freep(&s->scratchbuf);

648 return -1;

649 }

650 }

651

652 // avpriv_align_put_bits(&s->pb);

653 while (put_bits_count(&s->pb) & 31)

654 put_bits(&s->pb, 1, 0);

655

656 flush_put_bits(&s->pb);

657

658 pkt->size = put_bits_count(&s->pb) / 8;

659 if (s->pict_type == AV_PICTURE_TYPE_I)

660 pkt->flags |= AV_PKT_FLAG_KEY;

661 *got_packet = 1;

662

663 return 0;

664 }

665

666 #define OFFSET(x) offsetof(struct SVQ1EncContext, x)

667 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

668 static const AVOption options[] = {

669 { "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"},

670 { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion-est" },

671 { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion-est" },

672 { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion-est" },

673

674 { NULL },

675 };

676

677 static const AVClass svq1enc_class = {

678 .class_name = "svq1enc",

679 .item_name = av_default_item_name,

680 .option = options,

681 .version = LIBAVUTIL_VERSION_INT,

682 };

683

684 AVCodec ff_svq1_encoder = {

685 .name = "svq1",

686 .long_name = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),

687 .type = AVMEDIA_TYPE_VIDEO,

688 .id = AV_CODEC_ID_SVQ1,

689 .priv_data_size = sizeof(SVQ1EncContext),

690 .priv_class = &svq1enc_class,

691 .init = svq1_encode_init,

692 .encode2 = svq1_encode_frame,

693 .close = svq1_encode_end,

694 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV410P,

695 AV_PIX_FMT_NONE },

696 };

MotionEstContext::scratchpad

uint8_t * scratchpad

data area for the ME algo, so that the ME does not need to malloc/free.

Definition: motion_est.h:52

plane

int plane

Definition: avisynth_c.h:422

ff_me_cmp_init

av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)

Definition: me_cmp.c:1035

NULL

#define NULL

Definition: coverity.c:32

svq1enc_class

static const AVClass svq1enc_class

Definition: svq1enc.c:677

const char * s

Definition: avisynth_c.h:768

AVFrame

This structure describes decoded (raw) audio or video data.

Definition: frame.h:218

AV_PIX_FMT_NONE

Definition: pixfmt.h:61

SVQ1EncContext::mb_type

uint16_t * mb_type

Definition: svq1enc.h:67

MpegEncContext::p_mv_table

int16_t(* p_mv_table)[2]

MV table (1MV per MB) P-frame encoding.

Definition: mpegvideo.h:248

Definition: vp9dsp_template.c:2038

AVOption

AVOption.

Definition: opt.h:246

ff_side_data_set_encoder_stats

int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)

Definition: avpacket.c:710

ff_estimate_p_frame_motion

void ff_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)

Definition: motion_est.c:885

Picture::mb_mean

uint8_t * mb_mean

Table for MB luminance.

Definition: mpegpicture.h:74

THRESHOLD_MULTIPLIER

#define THRESHOLD_MULTIPLIER

Definition: svq1enc.c:77

SVQ1EncContext::frame_height

int frame_height

Definition: svq1enc.h:55

PutBitContext

Definition: put_bits.h:35

SVQ1EncContext::m

MpegEncContext m

Definition: svq1enc.h:38

put_bits

static void put_bits(Jpeg2000EncoderContext *s, int val, int n)

put n times val bit

Definition: j2kenc.c:207

LIBAVUTIL_VERSION_INT

#define LIBAVUTIL_VERSION_INT

Definition: version.h:85

temp

else temp

Definition: vf_mcdeint.c:256

ff_h263_encode_init

void ff_h263_encode_init(MpegEncContext *s)

Definition: ituh263enc.c:761

init

static av_cold int init(AVCodecContext *avctx)

Definition: avrndec.c:35

AV_OPT_TYPE_INT

Definition: opt.h:223

Picture::mb_var

uint16_t * mb_var

Table for MB variances.

Definition: mpegpicture.h:65

SVQ1EncContext::current_picture

AVFrame * current_picture

Definition: svq1enc.h:42

AVPacket::size

int size

Definition: avcodec.h:1431

av_default_item_name

const char * av_default_item_name(void *ptr)

Return the context name.

Definition: log.c:191

SVQ1EncContext::quality

int quality

Definition: svq1enc.h:48

avpriv_copy_bits

void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length)

Copy the content of src to the bitstream.

Definition: bitstream.c:64

FF_MPV_OPT_FLAGS

#define FF_MPV_OPT_FLAGS

Definition: mpegvideo.h:616

svq1_encode_plane

static int svq1_encode_plane(SVQ1EncContext *s, int plane, unsigned char *src_plane, unsigned char *ref_plane, unsigned char *decoded_plane, int width, int height, int src_stride, int stride)

Definition: svq1enc.c:246

AVCodecContext::pix_fmt

enum AVPixelFormat pix_fmt

Pixel format, see AV_PIX_FMT_xxx.

Definition: avcodec.h:1727

SVQ1EncContext::c_block_height

int c_block_height

Definition: svq1enc.h:63

MotionEstContext::score_map

uint32_t * score_map

map to store the scores

Definition: motion_est.h:59

mpegvideo.h

mpegvideo header.

av_mallocz

void * av_mallocz(size_t size)

Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...

Definition: mem.c:236

MotionEstContext::scene_change_score

int scene_change_score

Definition: motion_est.h:87

pkt

static AVPacket pkt

Definition: demuxing_decoding.c:54

SVQ1_BLOCK_INTRA

#define SVQ1_BLOCK_INTRA

Definition: svq1.h:43

src

#define src

Definition: vp8dsp.c:254

FF_LAMBDA_SHIFT

#define FF_LAMBDA_SHIFT

Definition: avutil.h:225

AVCodec

AVCodec.

Definition: avcodec.h:3408

MpegEncContext::qscale

int qscale

QP.

Definition: mpegvideo.h:204

ff_h263_pred_motion

int16_t * ff_h263_pred_motion(MpegEncContext *s, int block, int dir, int *px, int *py)

Definition: h263.c:307

ff_h263_encode_motion

void ff_h263_encode_motion(PutBitContext *pb, int val, int f_code)

Definition: ituh263enc.c:646

svq1enc_cb.h

svq1 code books.

FF_ME_ZERO

#define FF_ME_ZERO

Definition: motion_est.h:40

svq1_intra_codebook_sum

static const int8_t svq1_intra_codebook_sum[4][16 *6]

Definition: svq1enc_cb.h:59

init_block_index

static void init_block_index(MpegEncContext *s)

Definition: svq1enc.c:237

block

static int16_t block[64]

Definition: dct.c:115

ff_svq1_frame_size_table

const uint16_t ff_svq1_frame_size_table[7][2]

Definition: svq1.c:40

AVClass::class_name

const char * class_name

The name of the class; usually it is the same name as the context structure type to which the AVClass...

Definition: log.h:72

SVQ1_BLOCK_SKIP

#define SVQ1_BLOCK_SKIP

Definition: svq1.h:40

CANDIDATE_MB_TYPE_INTER

#define CANDIDATE_MB_TYPE_INTER

Definition: mpegutils.h:105

av_assert0

#define av_assert0(cond)

assert() equivalent, that is always enabled.

Definition: avassert.h:37

ff_alloc_packet2

int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)

Check AVPacket size and/or allocate data.

Definition: encode.c:32

AV_OPT_TYPE_CONST

Definition: opt.h:232

svq1_encode_init

static av_cold int svq1_encode_init(AVCodecContext *avctx)

Definition: svq1enc.c:514

SVQ1EncContext::y_block_height

int y_block_height

Definition: svq1enc.h:59

ff_mpegvideoencdsp_init

av_cold void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c, AVCodecContext *avctx)

Definition: mpegvideoencdsp.c:232

svq1enc.h

uint8_t

Definition: audio_convert.c:194

ME_MAP_SIZE

#define ME_MAP_SIZE

Definition: motion_est.h:38

av_cold

#define av_cold

Definition: attributes.h:82

av_frame_alloc

AVFrame * av_frame_alloc(void)

Allocate an AVFrame and set its fields to default values.

Definition: frame.c:189

av_assert2

#define av_assert2(cond)

assert() equivalent, that does lie in speed critical code.

Definition: avassert.h:64

SVQ1EncContext::frame_width

int frame_width

Definition: svq1enc.h:54

ff_svq1_inter_codebooks

const int8_t *const ff_svq1_inter_codebooks[6]

Definition: svq1_cb.h:776

SVQ1EncContext::encoded_block_levels

int16_t encoded_block_levels[6][7][256]

Definition: svq1enc.h:65

SVQ1EncContext::pict_type

enum AVPictureType pict_type

Definition: svq1enc.h:47

MpegEncContext::current_picture

Picture current_picture

copy of the current picture structure.

Definition: mpegvideo.h:180

height

#define height

AVPacket::data

uint8_t * data

Definition: avcodec.h:1430

MpegEncContext::mb_height

int mb_height

number of MBs horizontally & vertically

Definition: mpegvideo.h:129

size

ptrdiff_t size

Definition: opengl_enc.c:101

mpegutils.h

AV_INPUT_BUFFER_MIN_SIZE

#define AV_INPUT_BUFFER_MIN_SIZE

minimum encoding buffer size Used to avoid some checks during header writing.

Definition: avcodec.h:780

av_log

#define av_log(a,...)

Definition: tableprint_vlc.h:28

AV_PKT_FLAG_KEY

#define AV_PKT_FLAG_KEY

The packet contains a keyframe.

Definition: avcodec.h:1462

SVQ1EncContext::c_block_width

int c_block_width

Definition: svq1enc.h:62

ssd_int8_vs_int16_c

static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2, intptr_t size)

Definition: svq1enc.c:79

SVQ1EncContext::rd_total

int64_t rd_total

Definition: svq1enc.h:72

AV_LOG_ERROR

#define AV_LOG_ERROR

Something went wrong and cannot losslessly be recovered.

Definition: log.h:176

MAX_MB_BYTES

#define MAX_MB_BYTES

Definition: mpegutils.h:47

AVERROR

#define AVERROR(e)

Definition: error.h:43

SVQ1EncContext::scratchbuf

uint8_t * scratchbuf

Definition: svq1enc.h:74

av_frame_free

void av_frame_free(AVFrame **frame)

Free the frame and any dynamically allocated objects in it, e.g.

Definition: frame.c:202

NULL_IF_CONFIG_SMALL

#define NULL_IF_CONFIG_SMALL(x)

Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...

Definition: internal.h:186

AV_LOG_DEBUG

#define AV_LOG_DEBUG

Stuff which is only useful for libav* developers.

Definition: log.h:197

SVQ1EncContext::y_block_width

int y_block_width

Definition: svq1enc.h:58

AVCodecContext::flags

int flags

AV_CODEC_FLAG_*.

Definition: avcodec.h:1598

PutBitContext::buf

uint8_t * buf

Definition: put_bits.h:38

width

uint16_t width

Definition: gdv.c:47

avassert.h

simple assert() macros that are a bit more flexible than ISO C assert().

MpegEncContext::mpvencdsp

MpegvideoEncDSPContext mpvencdsp

Definition: mpegvideo.h:233

AVCodec::name

const char * name

Name of the codec implementation.

Definition: avcodec.h:3415

SVQ1EncContext::motion_val16

int16_t(*[3] motion_val16)[2]

Definition: svq1enc.h:70

h263.h

MpegEncContext::mb_type

uint16_t * mb_type

Table for candidate MB types for encoding (defines in mpegutils.h)

Definition: mpegvideo.h:291

SVQ1_BLOCK_INTER

#define SVQ1_BLOCK_INTER

Definition: svq1.h:41

offset

static const uint8_t offset[127][2]

Definition: vf_spp.c:92

count

GLsizei count

Definition: opengl_enc.c:109

ff_mpv_common_end

void ff_mpv_common_end(MpegEncContext *s)

Definition: mpegvideo.c:1122

encode_block

static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra)

Definition: svq1enc.c:89

AVPacket::flags

int flags

A combination of AV_PKT_FLAG values.

Definition: avcodec.h:1436

SVQ1EncContext::motion_est

int motion_est

Definition: svq1enc.h:76

svq1.h

Sorenson Vector Quantizer #1 (SVQ1) video codec.

put_bits_count

static int put_bits_count(PutBitContext *s)

Definition: put_bits.h:85

split

static char * split(char *message, char delim)

Definition: af_channelmap.c:81

ff_hpeldsp_init

av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)

Definition: hpeldsp.c:338

SVQ1EncContext::reorder_pb

PutBitContext reorder_pb[6]

Definition: svq1enc.h:52

AV_PICTURE_TYPE_I

Intra.

Definition: avutil.h:274

AVFrame::pict_type

enum AVPictureType pict_type

Picture type of the frame.

Definition: frame.h:301

av_assert1

#define av_assert1(cond)

assert() equivalent, that does not lie in speed critical code.

Definition: avassert.h:53

MpegEncContext::mb_y

int mb_y

Definition: mpegvideo.h:288

MpegEncContext::new_picture

Picture new_picture

copy of the source picture structure for encoding.

Definition: mpegvideo.h:174

ff_svq1_block_type_vlc

const uint8_t ff_svq1_block_type_vlc[4][2]

Definition: svq1_vlc.h:27

AVCodecContext::width

int width

picture width / height.

Definition: avcodec.h:1690

MpegEncContext::mb_x

int mb_x

Definition: mpegvideo.h:288

#define VE

Definition: svq1enc.c:667

uint8_t w

Definition: llviddspenc.c:38

Picture::motion_val

int16_t(*[2] motion_val)[2]

Definition: mpegpicture.h:53

MpegEncContext::width

int width

Definition: mpegvideo.h:100

MpegEncContext::current_picture_ptr

Picture * current_picture_ptr

pointer to the current picture

Definition: mpegvideo.h:184

SVQ1EncContext::mecc

MECmpContext mecc

Definition: svq1enc.h:40

int32_t

Definition: audio_convert.c:194

ff_svq1_encoder

AVCodec ff_svq1_encoder

Definition: svq1enc.c:684

SVQ1EncContext::ssd_int8_vs_int16

int(* ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2, intptr_t size)

Definition: svq1enc.h:78

MpegEncContext::mb_width

int mb_width

Definition: mpegvideo.h:129

AVFrame::quality

int quality

quality (between 1 (good) and FF_LAMBDA_MAX (bad))

Definition: frame.h:341

MpegEncContext::me

MotionEstContext me

Definition: mpegvideo.h:282

AVCodecContext::height

int height

Definition: avcodec.h:1690

AV_CODEC_ID_SVQ1

Definition: avcodec.h:240

FF_ARRAY_ELEMS

#define FF_ARRAY_ELEMS(a)

Definition: sinewin_tablegen_template.c:36

ff_svq1_inter_multistage_vlc

const uint8_t ff_svq1_inter_multistage_vlc[6][8][2]

Definition: svq1_vlc.h:50

MpegEncContext::block_index

int block_index[6]

index to current MB in block based arrays with edges

Definition: mpegvideo.h:293

svq1_encode_end

static av_cold int svq1_encode_end(AVCodecContext *avctx)

Definition: svq1enc.c:484

me_cmp.h

SVQ1EncContext::pb

PutBitContext pb

Definition: svq1enc.h:44

MpegEncContext::first_slice_line

int first_slice_line

used in MPEG-4 too to handle resync markers

Definition: mpegvideo.h:436

Picture::mc_mb_var

uint16_t * mc_mb_var

Table for motion compensated MB variances.

Definition: mpegpicture.h:68

SVQ1EncContext::motion_val8

int16_t(*[3] motion_val8)[2]

Definition: svq1enc.h:69

hpeldsp.h

Half-pel DSP functions.

FF_ME_XONE

#define FF_ME_XONE

Definition: motion_est.h:42

FF_LAMBDA_SCALE

#define FF_LAMBDA_SCALE

Definition: avutil.h:226

MpegEncContext::lambda2

unsigned int lambda2

(lambda*lambda) >> FF_LAMBDA_SHIFT

Definition: mpegvideo.h:207

avcodec.h

Libavcodec external API header.

MpegEncContext::linesize

ptrdiff_t linesize

line size, in bytes, may be different from width

Definition: mpegvideo.h:134

svq1_write_header

static void svq1_write_header(SVQ1EncContext *s, int frame_type)

Definition: svq1enc.c:42

AVFrame::linesize

int linesize[AV_NUM_DATA_POINTERS]

For video, size in bytes of each picture line.

Definition: frame.h:249

ff_svq1enc_init_ppc

av_cold void ff_svq1enc_init_ppc(SVQ1EncContext *c)

Definition: svq1enc_altivec.c:74

AVCodecContext

main external API structure.

Definition: avcodec.h:1518

MpegEncContext::height

int height

picture size. must be a multiple of 16

Definition: mpegvideo.h:100

FF_ME_EPZS

#define FF_ME_EPZS

Definition: motion_est.h:41

ff_get_buffer

int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)

Get a buffer for a frame.

Definition: decode.c:1891

HpelDSPContext::put_pixels_tab

op_pixels_func put_pixels_tab[4][4]

Halfpel motion compensation with rounding (a+b+1)>>1.

Definition: hpeldsp.h:56

PutBitContext::buf_end

uint8_t * buf_end

Definition: put_bits.h:38

ff_fix_long_p_mvs

void ff_fix_long_p_mvs(MpegEncContext *s)

Definition: motion_est.c:1651

AV_PIX_FMT_YUV410P

planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)

Definition: pixfmt.h:68

AVClass

Describe the class of an AVClass context structure.

Definition: log.h:67

Picture::f

struct AVFrame * f

Definition: mpegpicture.h:46

MpegEncContext::f_code

int f_code

forward MV resolution

Definition: mpegvideo.h:238

MpegEncContext::pict_type

int pict_type

AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...

Definition: mpegvideo.h:212

pix_fmts

static enum AVPixelFormat pix_fmts[]

Definition: libkvazaar.c:266

MpegEncContext::motion_est

int motion_est

ME algorithm.

Definition: mpegvideo.h:258

ff_svq1enc_init_x86

void ff_svq1enc_init_x86(SVQ1EncContext *c)

Definition: svq1enc_init.c:32

SVQ1EncContext::last_picture

AVFrame * last_picture

Definition: svq1enc.h:43

ff_init_me

int ff_init_me(MpegEncContext *s)

Definition: motion_est.c:306

AVFrame::data

uint8_t * data[AV_NUM_DATA_POINTERS]

pointer to the picture/channel planes.

Definition: frame.h:232

level

uint8_t level

Definition: svq3.c:207

MpegEncContext::b8_stride

int b8_stride

2*mb_width+1 used for some 8x8 block arrays to allow simple addressing

Definition: mpegvideo.h:131

MECmpContext::sse

me_cmp_func sse[6]

Definition: me_cmp.h:57

MpegEncContext

MpegEncContext.

Definition: mpegvideo.h:81

MpegEncContext::avctx

struct AVCodecContext * avctx

Definition: mpegvideo.h:98

AVCodecContext::gop_size

int gop_size

the number of pictures in a group of pictures, or 0 for intra_only

Definition: avcodec.h:1712

MpegEncContext::pb

PutBitContext pb

bit output

Definition: mpegvideo.h:151

int

Definition: ffmpeg_filter.c:190

stride

GLint GLenum GLboolean GLsizei stride

Definition: opengl_enc.c:105

MpegEncContext::mecc

MECmpContext mecc

Definition: mpegvideo.h:231

FF_DISABLE_DEPRECATION_WARNINGS

#define FF_DISABLE_DEPRECATION_WARNINGS

Definition: internal.h:84

ff_svq1_intra_codebooks

const int8_t *const ff_svq1_intra_codebooks[6]

Definition: svq1_cb.h:1519

internal.h

common internal api header.

MpegEncContext::mb_stride

int mb_stride

mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...

Definition: mpegvideo.h:130

flush_put_bits

static void flush_put_bits(PutBitContext *s)

Pad the end of the output stream with zeros.

Definition: put_bits.h:101

SVQ1EncContext::avctx

AVCodecContext * avctx

Definition: svq1enc.h:39

ref

static int ref[MAX_W *MAX_W]

Definition: jpeg2000dwt.c:107

ff_svq1_intra_multistage_vlc

const uint8_t ff_svq1_intra_multistage_vlc[6][8][2]

Definition: svq1_vlc.h:33

MpegEncContext::last_picture

Picture last_picture

copy of the previous picture structure.

Definition: mpegvideo.h:162

MpegEncContext::last_picture_ptr

Picture * last_picture_ptr

pointer to the previous picture.

Definition: mpegvideo.h:182

svq1_inter_codebook_sum

static const int8_t svq1_inter_codebook_sum[4][16 *6]

Definition: svq1enc_cb.h:32

AVCodecContext::coded_frame

attribute_deprecated AVFrame * coded_frame

the picture in the bitstream

Definition: avcodec.h:2760

ff_svq1_inter_mean_vlc

const uint16_t ff_svq1_inter_mean_vlc[512][2]

Definition: svq1_vlc.h:136

OFFSET

#define OFFSET(x)

Definition: svq1enc.c:666

init_put_bits

static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)

Initialize the PutBitContext s.

Definition: put_bits.h:48

MotionEstContext::map

uint32_t * map

map to avoid duplicate evaluations

Definition: motion_est.h:58

options

static const AVOption options[]

Definition: svq1enc.c:668

CANDIDATE_MB_TYPE_INTRA

#define CANDIDATE_MB_TYPE_INTRA

Definition: mpegutils.h:104

AVCodecContext::priv_data

void * priv_data

Definition: avcodec.h:1545

PICT_FRAME

#define PICT_FRAME

Definition: mpegutils.h:39

ff_mpv_common_init

av_cold int ff_mpv_common_init(MpegEncContext *s)

init common structure for both encoder and decoder.

Definition: mpegvideo.c:883

diff

static av_always_inline int diff(const uint32_t a, const uint32_t b)

Definition: vf_palettegen.c:136

MpegEncContext::picture_structure

int picture_structure

Definition: mpegvideo.h:460

AVCodecContext::dia_size

int dia_size

ME diamond size & shape.

Definition: avcodec.h:1945

FF_ENABLE_DEPRECATION_WARNINGS

#define FF_ENABLE_DEPRECATION_WARNINGS

Definition: internal.h:85

MotionEstContext::dia_size

int dia_size

Definition: motion_est.h:73

SVQ1EncContext::dummy

uint32_t * dummy

Definition: svq1enc.h:68

AVFrame::key_frame

int key_frame

1 -> keyframe, 0-> not

Definition: frame.h:296

ff_fix_long_mvs

void ff_fix_long_mvs(MpegEncContext *s, uint8_t *field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)

Definition: motion_est.c:1700

svq1_encode_frame

static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)

Definition: svq1enc.c:580

SVQ1EncContext::hdsp

HpelDSPContext hdsp

Definition: svq1enc.h:41

AVCodecContext::frame_number

int frame_number

Frame counter, set by libavcodec.

Definition: avcodec.h:2204

Picture::mb_type

uint32_t * mb_type

types and macros are defined in mpegutils.h

Definition: mpegpicture.h:56

av_freep

#define av_freep(p)

Definition: tableprint_vlc.h:35

AVMEDIA_TYPE_VIDEO

Definition: avutil.h:201

SVQ1EncContext

Definition: svq1enc.h:34

MotionEstContext::temp

uint8_t * temp

Definition: motion_est.h:56

av_malloc_array

#define av_malloc_array(a, b)

Definition: tableprint_vlc.h:32

FFSWAP

#define FFSWAP(type, a, b)

Definition: common.h:99

QUALITY_THRESHOLD

#define QUALITY_THRESHOLD

Definition: svq1enc.c:76

stride

#define stride

AVPixelFormat

Pixel format.

Definition: pixfmt.h:60

AVPacket

This structure stores compressed data.

Definition: avcodec.h:1407

ff_svq1_intra_mean_vlc

const uint16_t ff_svq1_intra_mean_vlc[256][2]

Definition: svq1_vlc.h:67

ff_match_2uint16

int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)

Return the index into tab at which {a,b} match elements {[0],[1]} of tab.

Definition: utils.c:1740

AV_PICTURE_TYPE_P

Predicted.

Definition: avutil.h:275

MpegEncContext::lambda

unsigned int lambda

Lagrange multiplier used in rate distortion.

Definition: mpegvideo.h:206

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