FFmpeg: libavcodec/libx264.c Source File

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libavcodec

libx264.c

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1 /*

2 * H.264 encoding using the x264 library

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 #include "libavutil/internal.h"

23 #include "libavutil/opt.h"

24 #include "libavutil/mem.h"

25 #include "libavutil/pixdesc.h"

26 #include "avcodec.h"

27 #include "internal.h"

28 #include <x264.h>

29 #include <float.h>

30 #include <math.h>

31 #include <stdio.h>

32 #include <stdlib.h>

33 #include <string.h>

35 typedef struct X264Context {

36 AVClass *class;

37 x264_param_t params;

38 x264_t *enc;

39 x264_picture_t pic;

40 uint8_t *sei;

41 int sei_size;

42 AVFrame out_pic;

43 char *preset;

44 char *tune;

45 char *profile;

46 char *level;

47 int fastfirstpass;

48 char *wpredp;

49 char *x264opts;

50 float crf;

51 float crf_max;

52 int cqp;

53 int aq_mode;

54 float aq_strength;

55 char *psy_rd;

56 int psy;

57 int rc_lookahead;

58 int weightp;

59 int weightb;

60 int ssim;

61 int intra_refresh;

62 int b_bias;

63 int b_pyramid;

64 int mixed_refs;

65 int dct8x8;

66 int fast_pskip;

67 int aud;

68 int mbtree;

69 char *deblock;

70 float cplxblur;

71 char *partitions;

72 int direct_pred;

73 int slice_max_size;

74 char *stats;

75 int nal_hrd;

76 char *x264_params;

77 } X264Context;

79 static void X264_log(void *p, int level, const char *fmt, va_list args)

80 {

81 static const int level_map[] = {

82 [X264_LOG_ERROR] = AV_LOG_ERROR,

83 [X264_LOG_WARNING] = AV_LOG_WARNING,

84 [X264_LOG_INFO] = AV_LOG_INFO,

85 [X264_LOG_DEBUG] = AV_LOG_DEBUG

86 };

88 if (level < 0 || level > X264_LOG_DEBUG)

89 return;

91 av_vlog(p, level_map[level], fmt, args);

92 }

95 static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,

96 x264_nal_t *nals, int nnal)

97 {

98 X264Context *x4 = ctx->priv_data;

99 uint8_t *p;

100 int i, size = x4->sei_size, ret;

101

102 if (!nnal)

103 return 0;

104

105 for (i = 0; i < nnal; i++)

106 size += nals[i].i_payload;

107

108 if ((ret = ff_alloc_packet2(ctx, pkt, size)) < 0)

109 return ret;

110

111 p = pkt->data;

112

113 /* Write the SEI as part of the first frame. */

114 if (x4->sei_size > 0 && nnal > 0) {

115 if (x4->sei_size > size) {

116 av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");

117 return -1;

118 }

119 memcpy(p, x4->sei, x4->sei_size);

120 p += x4->sei_size;

121 x4->sei_size = 0;

122 av_freep(&x4->sei);

123 }

124

125 for (i = 0; i < nnal; i++){

126 memcpy(p, nals[i].p_payload, nals[i].i_payload);

127 p += nals[i].i_payload;

128 }

129

130 return 1;

131 }

132

133 static int avfmt2_num_planes(int avfmt)

134 {

135 switch (avfmt) {

136 case AV_PIX_FMT_YUV420P:

137 case AV_PIX_FMT_YUVJ420P:

138 case AV_PIX_FMT_YUV420P9:

139 case AV_PIX_FMT_YUV420P10:

140 case AV_PIX_FMT_YUV444P:

141 return 3;

142

143 case AV_PIX_FMT_BGR24:

144 case AV_PIX_FMT_RGB24:

145 return 1;

146

147 default:

148 return 3;

149 }

150 }

151

152 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,

153 int *got_packet)

154 {

155 X264Context *x4 = ctx->priv_data;

156 x264_nal_t *nal;

157 int nnal, i, ret;

158 x264_picture_t pic_out = {0};

159

160 x264_picture_init( &x4->pic );

161 x4->pic.img.i_csp = x4->params.i_csp;

162 if (x264_bit_depth > 8)

163 x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;

164 x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);

165

166 if (frame) {

167 for (i = 0; i < x4->pic.img.i_plane; i++) {

168 x4->pic.img.plane[i] = frame->data[i];

169 x4->pic.img.i_stride[i] = frame->linesize[i];

170 }

171

172 x4->pic.i_pts = frame->pts;

173 x4->pic.i_type =

174 frame->pict_type == AV_PICTURE_TYPE_I ? X264_TYPE_KEYFRAME :

175 frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :

176 frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :

177 X264_TYPE_AUTO;

178 if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {

179 x4->params.b_tff = frame->top_field_first;

180 x264_encoder_reconfig(x4->enc, &x4->params);

181 }

182 if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den ||

183 x4->params.vui.i_sar_width != ctx->sample_aspect_ratio.num) {

184 x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;

185 x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;

186 x264_encoder_reconfig(x4->enc, &x4->params);

187 }

188 }

189

190 do {

191 if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)

192 return -1;

193

194 ret = encode_nals(ctx, pkt, nal, nnal);

195 if (ret < 0)

196 return -1;

197 } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));

198

199 pkt->pts = pic_out.i_pts;

200 pkt->dts = pic_out.i_dts;

201

202 switch (pic_out.i_type) {

203 case X264_TYPE_IDR:

204 case X264_TYPE_I:

205 x4->out_pic.pict_type = AV_PICTURE_TYPE_I;

206 break;

207 case X264_TYPE_P:

208 x4->out_pic.pict_type = AV_PICTURE_TYPE_P;

209 break;

210 case X264_TYPE_B:

211 case X264_TYPE_BREF:

212 x4->out_pic.pict_type = AV_PICTURE_TYPE_B;

213 break;

214 }

215

216 pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;

217 if (ret)

218 x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;

219

220 *got_packet = ret;

221 return 0;

222 }

223

224 static av_cold int X264_close(AVCodecContext *avctx)

225 {

226 X264Context *x4 = avctx->priv_data;

227

228 av_freep(&avctx->extradata);

229 av_free(x4->sei);

230

231 if (x4->enc)

232 x264_encoder_close(x4->enc);

233

234 return 0;

235 }

236

237 #define OPT_STR(opt, param) \

238 do { \

239 int ret; \

240 if (param!=NULL && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \

241 if(ret == X264_PARAM_BAD_NAME) \

242 av_log(avctx, AV_LOG_ERROR, \

243 "bad option '%s': '%s'\n", opt, param); \

244 else \

245 av_log(avctx, AV_LOG_ERROR, \

246 "bad value for '%s': '%s'\n", opt, param); \

247 return -1; \

248 } \

249 } while (0)

250

251 static int convert_pix_fmt(enum AVPixelFormat pix_fmt)

252 {

253 switch (pix_fmt) {

254 case AV_PIX_FMT_YUV420P:

255 case AV_PIX_FMT_YUVJ420P:

256 case AV_PIX_FMT_YUV420P9:

257 case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;

258 case AV_PIX_FMT_YUV422P:

259 case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;

260 case AV_PIX_FMT_YUV444P:

261 case AV_PIX_FMT_YUV444P9:

262 case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;

263 #ifdef X264_CSP_BGR

264 case AV_PIX_FMT_BGR24:

265 return X264_CSP_BGR;

266

267 case AV_PIX_FMT_RGB24:

268 return X264_CSP_RGB;

269 #endif

270 };

271 return 0;

272 }

273

274 #define PARSE_X264_OPT(name, var)\

275 if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\

276 av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\

277 return AVERROR(EINVAL);\

278 }

279

280 static av_cold int X264_init(AVCodecContext *avctx)

281 {

282 X264Context *x4 = avctx->priv_data;

283 int sw,sh;

284

285 x264_param_default(&x4->params);

286

287 x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;

288

289 x4->params.rc.f_pb_factor = avctx->b_quant_factor;

290 x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;

291 if (x4->preset || x4->tune)

292 if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {

293 int i;

294 av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);

295 av_log(avctx, AV_LOG_INFO, "Possible presets:");

296 for (i = 0; x264_preset_names[i]; i++)

297 av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);

298 av_log(avctx, AV_LOG_INFO, "\n");

299 av_log(avctx, AV_LOG_INFO, "Possible tunes:");

300 for (i = 0; x264_tune_names[i]; i++)

301 av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);

302 av_log(avctx, AV_LOG_INFO, "\n");

303 return AVERROR(EINVAL);

304 }

305

306 if (avctx->level > 0)

307 x4->params.i_level_idc = avctx->level;

308

309 x4->params.pf_log = X264_log;

310 x4->params.p_log_private = avctx;

311 x4->params.i_log_level = X264_LOG_DEBUG;

312 x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);

313

314 OPT_STR("weightp", x4->wpredp);

315

316 if (avctx->bit_rate) {

317 x4->params.rc.i_bitrate = avctx->bit_rate / 1000;

318 x4->params.rc.i_rc_method = X264_RC_ABR;

319 }

320 x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;

321 x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;

322 x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;

323 if (avctx->flags & CODEC_FLAG_PASS2) {

324 x4->params.rc.b_stat_read = 1;

325 } else {

326 if (x4->crf >= 0) {

327 x4->params.rc.i_rc_method = X264_RC_CRF;

328 x4->params.rc.f_rf_constant = x4->crf;

329 } else if (x4->cqp >= 0) {

330 x4->params.rc.i_rc_method = X264_RC_CQP;

331 x4->params.rc.i_qp_constant = x4->cqp;

332 }

333

334 if (x4->crf_max >= 0)

335 x4->params.rc.f_rf_constant_max = x4->crf_max;

336 }

337

338 if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&

339 (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {

340 x4->params.rc.f_vbv_buffer_init =

341 (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;

342 }

343

344 OPT_STR("level", x4->level);

345

346 if(x4->x264opts){

347 const char *p= x4->x264opts;

348 while(p){

349 char param[256]={0}, val[256]={0};

350 if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){

351 OPT_STR(param, "1");

352 }else

353 OPT_STR(param, val);

354 p= strchr(p, ':');

355 p+=!!p;

356 }

357 }

358

359 if (avctx->i_quant_factor > 0)

360 x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);

361

362 if (avctx->me_method == ME_EPZS)

363 x4->params.analyse.i_me_method = X264_ME_DIA;

364 else if (avctx->me_method == ME_HEX)

365 x4->params.analyse.i_me_method = X264_ME_HEX;

366 else if (avctx->me_method == ME_UMH)

367 x4->params.analyse.i_me_method = X264_ME_UMH;

368 else if (avctx->me_method == ME_FULL)

369 x4->params.analyse.i_me_method = X264_ME_ESA;

370 else if (avctx->me_method == ME_TESA)

371 x4->params.analyse.i_me_method = X264_ME_TESA;

372

373 if (avctx->gop_size >= 0)

374 x4->params.i_keyint_max = avctx->gop_size;

375 if (avctx->max_b_frames >= 0)

376 x4->params.i_bframe = avctx->max_b_frames;

377 if (avctx->scenechange_threshold >= 0)

378 x4->params.i_scenecut_threshold = avctx->scenechange_threshold;

379 if (avctx->qmin >= 0)

380 x4->params.rc.i_qp_min = avctx->qmin;

381 if (avctx->qmax >= 0)

382 x4->params.rc.i_qp_max = avctx->qmax;

383 if (avctx->max_qdiff >= 0)

384 x4->params.rc.i_qp_step = avctx->max_qdiff;

385 if (avctx->qblur >= 0)

386 x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */

387 if (avctx->qcompress >= 0)

388 x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */

389 if (avctx->refs >= 0)

390 x4->params.i_frame_reference = avctx->refs;

391 if (avctx->trellis >= 0)

392 x4->params.analyse.i_trellis = avctx->trellis;

393 if (avctx->me_range >= 0)

394 x4->params.analyse.i_me_range = avctx->me_range;

395 if (avctx->noise_reduction >= 0)

396 x4->params.analyse.i_noise_reduction = avctx->noise_reduction;

397 if (avctx->me_subpel_quality >= 0)

398 x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;

399 if (avctx->b_frame_strategy >= 0)

400 x4->params.i_bframe_adaptive = avctx->b_frame_strategy;

401 if (avctx->keyint_min >= 0)

402 x4->params.i_keyint_min = avctx->keyint_min;

403 if (avctx->coder_type >= 0)

404 x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;

405 if (avctx->me_cmp >= 0)

406 x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;

407

408 if (x4->aq_mode >= 0)

409 x4->params.rc.i_aq_mode = x4->aq_mode;

410 if (x4->aq_strength >= 0)

411 x4->params.rc.f_aq_strength = x4->aq_strength;

412 PARSE_X264_OPT("psy-rd", psy_rd);

413 PARSE_X264_OPT("deblock", deblock);

414 PARSE_X264_OPT("partitions", partitions);

415 PARSE_X264_OPT("stats", stats);

416 if (x4->psy >= 0)

417 x4->params.analyse.b_psy = x4->psy;

418 if (x4->rc_lookahead >= 0)

419 x4->params.rc.i_lookahead = x4->rc_lookahead;

420 if (x4->weightp >= 0)

421 x4->params.analyse.i_weighted_pred = x4->weightp;

422 if (x4->weightb >= 0)

423 x4->params.analyse.b_weighted_bipred = x4->weightb;

424 if (x4->cplxblur >= 0)

425 x4->params.rc.f_complexity_blur = x4->cplxblur;

426

427 if (x4->ssim >= 0)

428 x4->params.analyse.b_ssim = x4->ssim;

429 if (x4->intra_refresh >= 0)

430 x4->params.b_intra_refresh = x4->intra_refresh;

431 if (x4->b_bias != INT_MIN)

432 x4->params.i_bframe_bias = x4->b_bias;

433 if (x4->b_pyramid >= 0)

434 x4->params.i_bframe_pyramid = x4->b_pyramid;

435 if (x4->mixed_refs >= 0)

436 x4->params.analyse.b_mixed_references = x4->mixed_refs;

437 if (x4->dct8x8 >= 0)

438 x4->params.analyse.b_transform_8x8 = x4->dct8x8;

439 if (x4->fast_pskip >= 0)

440 x4->params.analyse.b_fast_pskip = x4->fast_pskip;

441 if (x4->aud >= 0)

442 x4->params.b_aud = x4->aud;

443 if (x4->mbtree >= 0)

444 x4->params.rc.b_mb_tree = x4->mbtree;

445 if (x4->direct_pred >= 0)

446 x4->params.analyse.i_direct_mv_pred = x4->direct_pred;

447

448 if (x4->slice_max_size >= 0)

449 x4->params.i_slice_max_size = x4->slice_max_size;

450 else {

451 /*

452 * Allow x264 to be instructed through AVCodecContext about the maximum

453 * size of the RTP payload. For example, this enables the production of

454 * payload suitable for the H.264 RTP packetization-mode 0 i.e. single

455 * NAL unit per RTP packet.

456 */

457 if (avctx->rtp_payload_size)

458 x4->params.i_slice_max_size = avctx->rtp_payload_size;

459 }

460

461 if (x4->fastfirstpass)

462 x264_param_apply_fastfirstpass(&x4->params);

463

464 /* Allow specifying the x264 profile through AVCodecContext. */

465 if (!x4->profile)

466 switch (avctx->profile) {

467 case FF_PROFILE_H264_BASELINE:

468 x4->profile = av_strdup("baseline");

469 break;

470 case FF_PROFILE_H264_HIGH:

471 x4->profile = av_strdup("high");

472 break;

473 case FF_PROFILE_H264_HIGH_10:

474 x4->profile = av_strdup("high10");

475 break;

476 case FF_PROFILE_H264_HIGH_422:

477 x4->profile = av_strdup("high422");

478 break;

479 case FF_PROFILE_H264_HIGH_444:

480 x4->profile = av_strdup("high444");

481 break;

482 case FF_PROFILE_H264_MAIN:

483 x4->profile = av_strdup("main");

484 break;

485 default:

486 break;

487 }

488

489 if (x4->nal_hrd >= 0)

490 x4->params.i_nal_hrd = x4->nal_hrd;

491

492 if (x4->profile)

493 if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {

494 int i;

495 av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);

496 av_log(avctx, AV_LOG_INFO, "Possible profiles:");

497 for (i = 0; x264_profile_names[i]; i++)

498 av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);

499 av_log(avctx, AV_LOG_INFO, "\n");

500 return AVERROR(EINVAL);

501 }

502

503 x4->params.i_width = avctx->width;

504 x4->params.i_height = avctx->height;

505 av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);

506 x4->params.vui.i_sar_width = sw;

507 x4->params.vui.i_sar_height = sh;

508 x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den;

509 x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num;

510

511 x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;

512

513 x4->params.i_threads = avctx->thread_count;

514 if (avctx->thread_type)

515 x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;

516

517 x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;

518

519 x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP);

520

521 x4->params.i_slice_count = avctx->slices;

522

523 x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P;

524

525 if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)

526 x4->params.b_repeat_headers = 0;

527

528 if (x4->x264_params) {

529 AVDictionary *dict = NULL;

530 AVDictionaryEntry *en = NULL;

531

532 if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {

533 while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {

534 if (x264_param_parse(&x4->params, en->key, en->value) < 0)

535 av_log(avctx, AV_LOG_WARNING,

536 "Error parsing option '%s = %s'.\n",

537 en->key, en->value);

538 }

539

540 av_dict_free(&dict);

541 }

542 }

543

544 // update AVCodecContext with x264 parameters

545 avctx->has_b_frames = x4->params.i_bframe ?

546 x4->params.i_bframe_pyramid ? 2 : 1 : 0;

547 if (avctx->max_b_frames < 0)

548 avctx->max_b_frames = 0;

549

550 avctx->bit_rate = x4->params.rc.i_bitrate*1000;

551

552 x4->enc = x264_encoder_open(&x4->params);

553 if (!x4->enc)

554 return -1;

555

556 avctx->coded_frame = &x4->out_pic;

557

558 if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {

559 x264_nal_t *nal;

560 uint8_t *p;

561 int nnal, s, i;

562

563 s = x264_encoder_headers(x4->enc, &nal, &nnal);

564 avctx->extradata = p = av_malloc(s);

565

566 for (i = 0; i < nnal; i++) {

567 /* Don't put the SEI in extradata. */

568 if (nal[i].i_type == NAL_SEI) {

569 av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);

570 x4->sei_size = nal[i].i_payload;

571 x4->sei = av_malloc(x4->sei_size);

572 memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);

573 continue;

574 }

575 memcpy(p, nal[i].p_payload, nal[i].i_payload);

576 p += nal[i].i_payload;

577 }

578 avctx->extradata_size = p - avctx->extradata;

579 }

580

581 return 0;

582 }

583

584 static const enum AVPixelFormat pix_fmts_8bit[] = {

585 AV_PIX_FMT_YUV420P,

586 AV_PIX_FMT_YUVJ420P,

587 AV_PIX_FMT_YUV422P,

588 AV_PIX_FMT_YUV444P,

589 AV_PIX_FMT_NONE

590 };

591 static const enum AVPixelFormat pix_fmts_9bit[] = {

592 AV_PIX_FMT_YUV420P9,

593 AV_PIX_FMT_YUV444P9,

594 AV_PIX_FMT_NONE

595 };

596 static const enum AVPixelFormat pix_fmts_10bit[] = {

597 AV_PIX_FMT_YUV420P10,

598 AV_PIX_FMT_YUV422P10,

599 AV_PIX_FMT_YUV444P10,

600 AV_PIX_FMT_NONE

601 };

602 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {

603 #ifdef X264_CSP_BGR

604 AV_PIX_FMT_BGR24,

605 AV_PIX_FMT_RGB24,

606 #endif

607 AV_PIX_FMT_NONE

608 };

609

610 static av_cold void X264_init_static(AVCodec *codec)

611 {

612 if (x264_bit_depth == 8)

613 codec->pix_fmts = pix_fmts_8bit;

614 else if (x264_bit_depth == 9)

615 codec->pix_fmts = pix_fmts_9bit;

616 else if (x264_bit_depth == 10)

617 codec->pix_fmts = pix_fmts_10bit;

618 }

619

620 #define OFFSET(x) offsetof(X264Context, x)

621 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

622 static const AVOption options[] = {

623 { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},

624 { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

625 { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

626 { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE},

627 {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

628 {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

629 {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

630 {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},

631 { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },

632 { "crf_max", "In CRF mode, prevents VBV from lowering quality beyond this point.",OFFSET(crf_max), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },

633 { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },

634 { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},

635 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },

636 { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },

637 { "autovariance", "Auto-variance AQ (experimental)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },

638 { "aq-strength", "AQ strength. Reduces blocking and blurring in flat and textured areas.", OFFSET(aq_strength), AV_OPT_TYPE_FLOAT, {.dbl = -1}, -1, FLT_MAX, VE},

639 { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },

640 { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},

641 { "rc-lookahead", "Number of frames to look ahead for frametype and ratecontrol", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },

642 { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },

643 { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },

644 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },

645 { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },

646 { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },

647 { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },

648 { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },

649 { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },

650 { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },

651 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },

652 { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },

653 { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },

654 { "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, { .i64 = -1}, -1, 1, VE },

655 { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},

656 { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},

657 { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},

658 { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},

659 { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

660 { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},

661 { "partitions", "A comma-separated list of partitions to consider. "

662 "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},

663 { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },

664 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },

665 { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },

666 { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },

667 { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },

668 { "slice-max-size","Limit the size of each slice in bytes", OFFSET(slice_max_size),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },

669 { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },

670 { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "

671 "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },

672 { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },

673 { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },

674 { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },

675 { "x264-params", "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },

676 { NULL },

677 };

678

679 static const AVClass x264_class = {

680 .class_name = "libx264",

681 .item_name = av_default_item_name,

682 .option = options,

683 .version = LIBAVUTIL_VERSION_INT,

684 };

685

686 static const AVClass rgbclass = {

687 .class_name = "libx264rgb",