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"

29 #if defined(_MSC_VER)

30 #define X264_API_IMPORTS 1

31 #endif

33 #include <x264.h>

34 #include <float.h>

35 #include <math.h>

36 #include <stdio.h>

37 #include <stdlib.h>

38 #include <string.h>

40 typedef struct X264Context {

41 AVClass *class;

42 x264_param_t params;

43 x264_t *enc;

44 x264_picture_t pic;

45 uint8_t *sei;

46 int sei_size;

47 char *preset;

48 char *tune;

49 char *profile;

50 char *level;

51 int fastfirstpass;

52 char *wpredp;

53 char *x264opts;

54 float crf;

55 float crf_max;

56 int cqp;

57 int aq_mode;

58 float aq_strength;

59 char *psy_rd;

60 int psy;

61 int rc_lookahead;

62 int weightp;

63 int weightb;

64 int ssim;

65 int intra_refresh;

66 int bluray_compat;

67 int b_bias;

68 int b_pyramid;

69 int mixed_refs;

70 int dct8x8;

71 int fast_pskip;

72 int aud;

73 int mbtree;

74 char *deblock;

75 float cplxblur;

76 char *partitions;

77 int direct_pred;

78 int slice_max_size;

79 char *stats;

80 int nal_hrd;

81 char *x264_params;

82 } X264Context;

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

85 {

86 static const int level_map[] = {

87 [X264_LOG_ERROR] = AV_LOG_ERROR,

88 [X264_LOG_WARNING] = AV_LOG_WARNING,

89 [X264_LOG_INFO] = AV_LOG_INFO,

90 [X264_LOG_DEBUG] = AV_LOG_DEBUG

91 };

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

94 return;

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

97 }

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

101 x264_nal_t *nals, int nnal)

102 {

103 X264Context *x4 = ctx->priv_data;

104 uint8_t *p;

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

106

107 if (!nnal)

108 return 0;

109

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

111 size += nals[i].i_payload;

112

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

114 return ret;

115

116 p = pkt->data;

117

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

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

120 if (x4->sei_size > size) {

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

122 return -1;

123 }

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

125 p += x4->sei_size;

126 x4->sei_size = 0;

127 av_freep(&x4->sei);

128 }

129

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

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

132 p += nals[i].i_payload;

133 }

134

135 return 1;

136 }

137

138 static int avfmt2_num_planes(int avfmt)

139 {

140 switch (avfmt) {

141 case AV_PIX_FMT_YUV420P:

142 case AV_PIX_FMT_YUVJ420P:

143 case AV_PIX_FMT_YUV420P9:

144 case AV_PIX_FMT_YUV420P10:

145 case AV_PIX_FMT_YUV444P:

146 return 3;

147

148 case AV_PIX_FMT_BGR24:

149 case AV_PIX_FMT_RGB24:

150 return 1;

151

152 default:

153 return 3;

154 }

155 }

156

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

158 int *got_packet)

159 {

160 X264Context *x4 = ctx->priv_data;

161 x264_nal_t *nal;

162 int nnal, i, ret;

163 x264_picture_t pic_out = {0};

164

165 x264_picture_init( &x4->pic );

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

167 if (x264_bit_depth > 8)

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

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

170

171 if (frame) {

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

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

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

175 }

176

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

178 x4->pic.i_type =

179 frame->pict_type == AV_PICTURE_TYPE_I ? X264_TYPE_KEYFRAME :

180 frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :

181 frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :

182 X264_TYPE_AUTO;

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

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

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

186 }

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

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

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

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

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

192 }

193 }

194

195 do {

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

197 return -1;

198

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

200 if (ret < 0)

201 return -1;

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

203

204 pkt->pts = pic_out.i_pts;

205 pkt->dts = pic_out.i_dts;

206

207 switch (pic_out.i_type) {

208 case X264_TYPE_IDR:

209 case X264_TYPE_I:

210 ctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;

211 break;

212 case X264_TYPE_P:

213 ctx->coded_frame->pict_type = AV_PICTURE_TYPE_P;

214 break;

215 case X264_TYPE_B:

216 case X264_TYPE_BREF:

217 ctx->coded_frame->pict_type = AV_PICTURE_TYPE_B;

218 break;

219 }

220

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

222 if (ret)

223 ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;

224

225 *got_packet = ret;

226 return 0;

227 }

228

229 static av_cold int X264_close(AVCodecContext *avctx)

230 {

231 X264Context *x4 = avctx->priv_data;

232

233 av_freep(&avctx->extradata);

234 av_free(x4->sei);

235

236 if (x4->enc)

237 x264_encoder_close(x4->enc);

238

239 av_frame_free(&avctx->coded_frame);

240

241 return 0;

242 }

243

244 #define OPT_STR(opt, param) \

245 do { \

246 int ret; \

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

248 if(ret == X264_PARAM_BAD_NAME) \

249 av_log(avctx, AV_LOG_ERROR, \

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

251 else \

252 av_log(avctx, AV_LOG_ERROR, \

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

254 return -1; \

255 } \

256 } while (0)

257

258 static int convert_pix_fmt(enum AVPixelFormat pix_fmt)

259 {

260 switch (pix_fmt) {

261 case AV_PIX_FMT_YUV420P:

262 case AV_PIX_FMT_YUVJ420P:

263 case AV_PIX_FMT_YUV420P9:

264 case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;

265 case AV_PIX_FMT_YUV422P:

266 case AV_PIX_FMT_YUVJ422P:

267 case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;

268 case AV_PIX_FMT_YUV444P:

269 case AV_PIX_FMT_YUVJ444P:

270 case AV_PIX_FMT_YUV444P9:

271 case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;

272 #ifdef X264_CSP_BGR

273 case AV_PIX_FMT_BGR24:

274 return X264_CSP_BGR;

275

276 case AV_PIX_FMT_RGB24:

277 return X264_CSP_RGB;

278 #endif

279 case AV_PIX_FMT_NV12: return X264_CSP_NV12;

280 case AV_PIX_FMT_NV16:

281 case AV_PIX_FMT_NV20: return X264_CSP_NV16;

282 };

283 return 0;

284 }

285

286 #define PARSE_X264_OPT(name, var)\

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

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

289 return AVERROR(EINVAL);\

290 }

291

292 static av_cold int X264_init(AVCodecContext *avctx)

293 {

294 X264Context *x4 = avctx->priv_data;

295 int sw,sh;

296

297 x264_param_default(&x4->params);

298

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

300

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

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

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

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

305 int i;

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

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

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

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

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

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

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

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

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

315 return AVERROR(EINVAL);

316 }

317

318 if (avctx->level > 0)

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

320

321 x4->params.pf_log = X264_log;

322 x4->params.p_log_private = avctx;

323 x4->params.i_log_level = X264_LOG_DEBUG;

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

325

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

327

328 if (avctx->bit_rate) {

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

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

331 }

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

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

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

335 if (avctx->flags & CODEC_FLAG_PASS2) {

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

337 } else {

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

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

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

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

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

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

344 }

345

346 if (x4->crf_max >= 0)

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

348 }

349

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

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

352 x4->params.rc.f_vbv_buffer_init =

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

354 }

355

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

357

358 if(x4->x264opts){

359 const char *p= x4->x264opts;

360 while(p){

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

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

363 OPT_STR(param, "1");

364 }else

365 OPT_STR(param, val);

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

367 p+=!!p;

368 }

369 }

370

371 if (avctx->i_quant_factor > 0)

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

373

374 if (avctx->me_method == ME_EPZS)

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

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

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

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

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

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

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

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

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

384

385 if (avctx->gop_size >= 0)

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

387 if (avctx->max_b_frames >= 0)

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

389 if (avctx->scenechange_threshold >= 0)

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

391 if (avctx->qmin >= 0)

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

393 if (avctx->qmax >= 0)

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

395 if (avctx->max_qdiff >= 0)

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

397 if (avctx->qblur >= 0)

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

399 if (avctx->qcompress >= 0)

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

401 if (avctx->refs >= 0)

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

403 if (avctx->trellis >= 0)

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

405 if (avctx->me_range >= 0)

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

407 if (avctx->noise_reduction >= 0)

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

409 if (avctx->me_subpel_quality >= 0)

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

411 if (avctx->b_frame_strategy >= 0)

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

413 if (avctx->keyint_min >= 0)

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

415 if (avctx->coder_type >= 0)

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

417 if (avctx->me_cmp >= 0)

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

419

420 if (x4->aq_mode >= 0)

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

422 if (x4->aq_strength >= 0)

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

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

425 PARSE_X264_OPT("deblock", deblock);

426 PARSE_X264_OPT("partitions", partitions);

427 PARSE_X264_OPT("stats", stats);

428 if (x4->psy >= 0)

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

430 if (x4->rc_lookahead >= 0)

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

432 if (x4->weightp >= 0)

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

434 if (x4->weightb >= 0)

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

436 if (x4->cplxblur >= 0)

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

438

439 if (x4->ssim >= 0)

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

441 if (x4->intra_refresh >= 0)

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

443 if (x4->bluray_compat >= 0) {

444 x4->params.b_bluray_compat = x4->bluray_compat;

445 x4->params.b_vfr_input = 0;

446 }

447 if (x4->b_bias != INT_MIN)

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

449 if (x4->b_pyramid >= 0)

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

451 if (x4->mixed_refs >= 0)

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

453 if (x4->dct8x8 >= 0)

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

455 if (x4->fast_pskip >= 0)

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

457 if (x4->aud >= 0)

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

459 if (x4->mbtree >= 0)

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

461 if (x4->direct_pred >= 0)

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

463

464 if (x4->slice_max_size >= 0)

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

466 else {

467 /*

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

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

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

471 * NAL unit per RTP packet.

472 */

473 if (avctx->rtp_payload_size)

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

475 }

476

477 if (x4->fastfirstpass)

478 x264_param_apply_fastfirstpass(&x4->params);

479

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

481 if (!x4->profile)

482 switch (avctx->profile) {

483 case FF_PROFILE_H264_BASELINE:

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

485 break;

486 case FF_PROFILE_H264_HIGH:

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

488 break;

489 case FF_PROFILE_H264_HIGH_10:

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

491 break;

492 case FF_PROFILE_H264_HIGH_422:

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

494 break;

495 case FF_PROFILE_H264_HIGH_444:

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

497 break;

498 case FF_PROFILE_H264_MAIN:

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

500 break;

501 default:

502 break;

503 }

504

505 if (x4->nal_hrd >= 0)

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

507

508 if (x4->profile)

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

510 int i;

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

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

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

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

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

516 return AVERROR(EINVAL);

517 }

518

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

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

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

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

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

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

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

526

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

528

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

530 if (avctx->thread_type)

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

532

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

534

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

536

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

538

539 x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||

540 avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||

541 avctx->pix_fmt == AV_PIX_FMT_YUVJ444P;

542

543 if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)

544 x4->params.b_repeat_headers = 0;

545

546 if (x4->x264_params) {

547 AVDictionary *dict = NULL;

548 AVDictionaryEntry *en = NULL;

549

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

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

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

553 av_log(avctx, AV_LOG_WARNING,

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

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

556 }

557

558 av_dict_free(&dict);

559 }

560 }

561

562 // update AVCodecContext with x264 parameters

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

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

565 if (avctx->max_b_frames < 0)

566 avctx->max_b_frames = 0;

567

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

569

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

571 if (!x4->enc)

572 return -1;

573

574 avctx->coded_frame = av_frame_alloc();

575 if (!avctx->coded_frame)

576 return AVERROR(ENOMEM);

577

578 if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {

579 x264_nal_t *nal;

580 uint8_t *p;

581 int nnal, s, i;

582

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

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

585

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

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

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

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

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

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

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

593 continue;

594 }

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

596 p += nal[i].i_payload;

597 }

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

599 }

600

601 return 0;

602 }

603

604 static const enum AVPixelFormat pix_fmts_8bit[] = {

605 AV_PIX_FMT_YUV420P,

606 AV_PIX_FMT_YUVJ420P,

607 AV_PIX_FMT_YUV422P,

608 AV_PIX_FMT_YUVJ422P,

609 AV_PIX_FMT_YUV444P,

610 AV_PIX_FMT_YUVJ444P,

611 AV_PIX_FMT_NV12,

612 AV_PIX_FMT_NV16,

613 AV_PIX_FMT_NONE

614 };

615 static const enum AVPixelFormat pix_fmts_9bit[] = {

616 AV_PIX_FMT_YUV420P9,

617 AV_PIX_FMT_YUV444P9,

618 AV_PIX_FMT_NONE

619 };

620 static const enum AVPixelFormat pix_fmts_10bit[] = {

621 AV_PIX_FMT_YUV420P10,

622 AV_PIX_FMT_YUV422P10,

623 AV_PIX_FMT_YUV444P10,

624 AV_PIX_FMT_NV20,

625 AV_PIX_FMT_NONE

626 };

627 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {

628 #ifdef X264_CSP_BGR

629 AV_PIX_FMT_BGR24,

630 AV_PIX_FMT_RGB24,

631 #endif

632 AV_PIX_FMT_NONE

633 };

634

635 static av_cold void X264_init_static(AVCodec *codec)

636 {

637 if (x264_bit_depth == 8)

638 codec->pix_fmts = pix_fmts_8bit;

639 else if (x264_bit_depth == 9)

640 codec->pix_fmts = pix_fmts_9bit;

641 else if (x264_bit_depth == 10)

642 codec->pix_fmts = pix_fmts_10bit;

643 }

644

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

646 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

647 static const AVOption options[] = {

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

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

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

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

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

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

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

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

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

657 { "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 },

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

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

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

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

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

663 { "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},

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

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

666 { "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 },

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

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

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

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

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

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

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

674 { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },

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

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

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

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

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

680 { "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 },

681 { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},

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

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

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

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

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

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

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

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

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

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

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

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

694 { "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 },

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

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

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

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

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

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

701 { "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 },

702 { NULL },

703 };

704

705 static const AVClass x264_class = {

706 .class_name = "libx264",

707 .item_name = av_default_item_name,

708 .option = options,

709 .version = LIBAVUTIL_VERSION_INT,

710 };

711

712 static const AVClass rgbclass = {

713 .class_name = "libx264rgb",