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00026 #define VPX_DISABLE_CTRL_TYPECHECKS 1
00027 #define VPX_CODEC_DISABLE_COMPAT 1
00028 #include <vpx/vpx_encoder.h>
00029 #include <vpx/vp8cx.h>
00030
00031 #include "avcodec.h"
00032 #include "internal.h"
00033 #include "libavutil/base64.h"
00034 #include "libavutil/mathematics.h"
00035 #include "libavutil/opt.h"
00036
00041 struct FrameListData {
00042 void *buf;
00043 size_t sz;
00044 int64_t pts;
00046 unsigned long duration;
00048 uint32_t flags;
00049 struct FrameListData *next;
00050 };
00051
00052 typedef struct VP8EncoderContext {
00053 AVClass *class;
00054 struct vpx_codec_ctx encoder;
00055 struct vpx_image rawimg;
00056 struct vpx_fixed_buf twopass_stats;
00057 int deadline;
00058 struct FrameListData *coded_frame_list;
00059
00060 int cpu_used;
00064 int flags;
00065 #define VP8F_ERROR_RESILIENT 0x00000001
00066 #define VP8F_AUTO_ALT_REF 0x00000002
00067
00068 int auto_alt_ref;
00069
00070 int arnr_max_frames;
00071 int arnr_strength;
00072 int arnr_type;
00073
00074 int lag_in_frames;
00075 int error_resilient;
00076 int crf;
00077 } VP8Context;
00078
00080 static const char *ctlidstr[] = {
00081 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
00082 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
00083 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
00084 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
00085 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
00086 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
00087 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
00088 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
00089 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
00090 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
00091 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
00092 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
00093 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
00094 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
00095 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
00096 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
00097 [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
00098 };
00099
00100 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
00101 {
00102 VP8Context *ctx = avctx->priv_data;
00103 const char *error = vpx_codec_error(&ctx->encoder);
00104 const char *detail = vpx_codec_error_detail(&ctx->encoder);
00105
00106 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
00107 if (detail)
00108 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
00109 }
00110
00111 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
00112 const struct vpx_codec_enc_cfg *cfg)
00113 {
00114 int width = -30;
00115 int level = AV_LOG_DEBUG;
00116
00117 av_log(avctx, level, "vpx_codec_enc_cfg\n");
00118 av_log(avctx, level, "generic settings\n"
00119 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
00120 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
00121 width, "g_usage:", cfg->g_usage,
00122 width, "g_threads:", cfg->g_threads,
00123 width, "g_profile:", cfg->g_profile,
00124 width, "g_w:", cfg->g_w,
00125 width, "g_h:", cfg->g_h,
00126 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
00127 width, "g_error_resilient:", cfg->g_error_resilient,
00128 width, "g_pass:", cfg->g_pass,
00129 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
00130 av_log(avctx, level, "rate control settings\n"
00131 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
00132 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
00133 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
00134 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
00135 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
00136 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
00137 width, "rc_end_usage:", cfg->rc_end_usage,
00138 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
00139 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
00140 av_log(avctx, level, "quantizer settings\n"
00141 " %*s%u\n %*s%u\n",
00142 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
00143 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
00144 av_log(avctx, level, "bitrate tolerance\n"
00145 " %*s%u\n %*s%u\n",
00146 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
00147 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
00148 av_log(avctx, level, "decoder buffer model\n"
00149 " %*s%u\n %*s%u\n %*s%u\n",
00150 width, "rc_buf_sz:", cfg->rc_buf_sz,
00151 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
00152 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
00153 av_log(avctx, level, "2 pass rate control settings\n"
00154 " %*s%u\n %*s%u\n %*s%u\n",
00155 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
00156 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
00157 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
00158 av_log(avctx, level, "keyframing settings\n"
00159 " %*s%d\n %*s%u\n %*s%u\n",
00160 width, "kf_mode:", cfg->kf_mode,
00161 width, "kf_min_dist:", cfg->kf_min_dist,
00162 width, "kf_max_dist:", cfg->kf_max_dist);
00163 av_log(avctx, level, "\n");
00164 }
00165
00166 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
00167 {
00168 struct FrameListData **p = list;
00169
00170 while (*p != NULL)
00171 p = &(*p)->next;
00172 *p = cx_frame;
00173 cx_frame->next = NULL;
00174 }
00175
00176 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
00177 {
00178 av_freep(&cx_frame->buf);
00179 av_freep(&cx_frame);
00180 }
00181
00182 static av_cold void free_frame_list(struct FrameListData *list)
00183 {
00184 struct FrameListData *p = list;
00185
00186 while (p) {
00187 list = list->next;
00188 free_coded_frame(p);
00189 p = list;
00190 }
00191 }
00192
00193 static av_cold int codecctl_int(AVCodecContext *avctx,
00194 enum vp8e_enc_control_id id, int val)
00195 {
00196 VP8Context *ctx = avctx->priv_data;
00197 char buf[80];
00198 int width = -30;
00199 int res;
00200
00201 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
00202 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
00203
00204 res = vpx_codec_control(&ctx->encoder, id, val);
00205 if (res != VPX_CODEC_OK) {
00206 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
00207 ctlidstr[id]);
00208 log_encoder_error(avctx, buf);
00209 }
00210
00211 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
00212 }
00213
00214 static av_cold int vp8_free(AVCodecContext *avctx)
00215 {
00216 VP8Context *ctx = avctx->priv_data;
00217
00218 vpx_codec_destroy(&ctx->encoder);
00219 av_freep(&ctx->twopass_stats.buf);
00220 av_freep(&avctx->coded_frame);
00221 av_freep(&avctx->stats_out);
00222 free_frame_list(ctx->coded_frame_list);
00223 return 0;
00224 }
00225
00226 static av_cold int vp8_init(AVCodecContext *avctx)
00227 {
00228 VP8Context *ctx = avctx->priv_data;
00229 const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
00230 struct vpx_codec_enc_cfg enccfg;
00231 int res;
00232
00233 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
00234 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
00235
00236 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
00237 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
00238 vpx_codec_err_to_string(res));
00239 return AVERROR(EINVAL);
00240 }
00241 dump_enc_cfg(avctx, &enccfg);
00242
00243 enccfg.g_w = avctx->width;
00244 enccfg.g_h = avctx->height;
00245 enccfg.g_timebase.num = avctx->time_base.num;
00246 enccfg.g_timebase.den = avctx->time_base.den;
00247 enccfg.g_threads = avctx->thread_count;
00248 #if FF_API_X264_GLOBAL_OPTS
00249 if(avctx->rc_lookahead >= 0)
00250 enccfg.g_lag_in_frames= FFMIN(avctx->rc_lookahead, 25);
00251 if (ctx->lag_in_frames >= 0)
00252 enccfg.g_lag_in_frames = ctx->lag_in_frames;
00253 #else
00254 enccfg.g_lag_in_frames= ctx->lag_in_frames;
00255 #endif
00256
00257 if (avctx->flags & CODEC_FLAG_PASS1)
00258 enccfg.g_pass = VPX_RC_FIRST_PASS;
00259 else if (avctx->flags & CODEC_FLAG_PASS2)
00260 enccfg.g_pass = VPX_RC_LAST_PASS;
00261 else
00262 enccfg.g_pass = VPX_RC_ONE_PASS;
00263
00264 if (avctx->rc_min_rate == avctx->rc_max_rate &&
00265 avctx->rc_min_rate == avctx->bit_rate)
00266 enccfg.rc_end_usage = VPX_CBR;
00267 #if FF_API_X264_GLOBAL_OPTS
00268 else if (avctx->crf || ctx->crf > 0)
00269 #else
00270 else if (ctx->crf)
00271 #endif
00272 enccfg.rc_end_usage = VPX_CQ;
00273 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
00274 AV_ROUND_NEAR_INF);
00275 if (avctx->qmin > 0)
00276 enccfg.rc_min_quantizer = avctx->qmin;
00277 if (avctx->qmax > 0)
00278 enccfg.rc_max_quantizer = avctx->qmax;
00279 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
00280
00281
00282 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
00283 enccfg.rc_2pass_vbr_minsection_pct =
00284 avctx->rc_min_rate * 100LL / avctx->bit_rate;
00285 if (avctx->rc_max_rate)
00286 enccfg.rc_2pass_vbr_maxsection_pct =
00287 avctx->rc_max_rate * 100LL / avctx->bit_rate;
00288
00289 if (avctx->rc_buffer_size)
00290 enccfg.rc_buf_sz =
00291 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
00292 if (avctx->rc_initial_buffer_occupancy)
00293 enccfg.rc_buf_initial_sz =
00294 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
00295 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
00296 enccfg.rc_undershoot_pct = round(avctx->rc_buffer_aggressivity * 100);
00297
00298
00299 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
00300 enccfg.kf_min_dist = avctx->keyint_min;
00301 if (avctx->gop_size >= 0)
00302 enccfg.kf_max_dist = avctx->gop_size;
00303
00304 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
00305 enccfg.g_lag_in_frames = 0;
00306 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
00307 int decode_size;
00308
00309 if (!avctx->stats_in) {
00310 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
00311 return AVERROR_INVALIDDATA;
00312 }
00313
00314 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
00315 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
00316 if (!ctx->twopass_stats.buf) {
00317 av_log(avctx, AV_LOG_ERROR,
00318 "Stat buffer alloc (%zu bytes) failed\n",
00319 ctx->twopass_stats.sz);
00320 return AVERROR(ENOMEM);
00321 }
00322 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
00323 ctx->twopass_stats.sz);
00324 if (decode_size < 0) {
00325 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
00326 return AVERROR_INVALIDDATA;
00327 }
00328
00329 ctx->twopass_stats.sz = decode_size;
00330 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
00331 }
00332
00333
00334
00335
00336 if (avctx->profile != FF_PROFILE_UNKNOWN)
00337 enccfg.g_profile = avctx->profile;
00338
00339 enccfg.g_error_resilient = ctx->error_resilient || ctx->flags & VP8F_ERROR_RESILIENT;
00340
00341 dump_enc_cfg(avctx, &enccfg);
00342
00343 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
00344 if (res != VPX_CODEC_OK) {
00345 log_encoder_error(avctx, "Failed to initialize encoder");
00346 return AVERROR(EINVAL);
00347 }
00348
00349
00350 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
00351 if (ctx->cpu_used != INT_MIN)
00352 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
00353 if (ctx->flags & VP8F_AUTO_ALT_REF)
00354 ctx->auto_alt_ref = 1;
00355 if (ctx->auto_alt_ref >= 0)
00356 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
00357 if (ctx->arnr_max_frames >= 0)
00358 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
00359 if (ctx->arnr_strength >= 0)
00360 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
00361 if (ctx->arnr_type >= 0)
00362 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
00363 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
00364 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
00365 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
00366 #if FF_API_X264_GLOBAL_OPTS
00367 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, (int)avctx->crf);
00368 if (ctx->crf >= 0)
00369 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
00370 #else
00371 codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
00372 #endif
00373
00374 av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline);
00375
00376
00377 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
00378 (unsigned char*)1);
00379
00380 avctx->coded_frame = avcodec_alloc_frame();
00381 if (!avctx->coded_frame) {
00382 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
00383 vp8_free(avctx);
00384 return AVERROR(ENOMEM);
00385 }
00386 return 0;
00387 }
00388
00389 static inline void cx_pktcpy(struct FrameListData *dst,
00390 const struct vpx_codec_cx_pkt *src)
00391 {
00392 dst->pts = src->data.frame.pts;
00393 dst->duration = src->data.frame.duration;
00394 dst->flags = src->data.frame.flags;
00395 dst->sz = src->data.frame.sz;
00396 dst->buf = src->data.frame.buf;
00397 }
00398
00407 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
00408 uint8_t *buf, int buf_size, AVFrame *coded_frame)
00409 {
00410 if ((int) cx_frame->sz <= buf_size) {
00411 buf_size = cx_frame->sz;
00412 memcpy(buf, cx_frame->buf, buf_size);
00413 coded_frame->pts = cx_frame->pts;
00414 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
00415
00416 if (coded_frame->key_frame)
00417 coded_frame->pict_type = AV_PICTURE_TYPE_I;
00418 else
00419 coded_frame->pict_type = AV_PICTURE_TYPE_P;
00420 } else {
00421 av_log(avctx, AV_LOG_ERROR,
00422 "Compressed frame larger than storage provided! (%zu/%d)\n",
00423 cx_frame->sz, buf_size);
00424 return AVERROR(EINVAL);
00425 }
00426 return buf_size;
00427 }
00428
00437 static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
00438 AVFrame *coded_frame)
00439 {
00440 VP8Context *ctx = avctx->priv_data;
00441 const struct vpx_codec_cx_pkt *pkt;
00442 const void *iter = NULL;
00443 int size = 0;
00444
00445 if (ctx->coded_frame_list) {
00446 struct FrameListData *cx_frame = ctx->coded_frame_list;
00447
00448 size = storeframe(avctx, cx_frame, buf, buf_size, coded_frame);
00449 if (size < 0)
00450 return AVERROR(EINVAL);
00451 ctx->coded_frame_list = cx_frame->next;
00452 free_coded_frame(cx_frame);
00453 }
00454
00455
00456
00457 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) {
00458 switch (pkt->kind) {
00459 case VPX_CODEC_CX_FRAME_PKT:
00460 if (!size) {
00461 struct FrameListData cx_frame;
00462
00463
00464
00465 assert(!ctx->coded_frame_list);
00466 cx_pktcpy(&cx_frame, pkt);
00467 size = storeframe(avctx, &cx_frame, buf, buf_size, coded_frame);
00468 if (size < 0)
00469 return AVERROR(EINVAL);
00470 } else {
00471 struct FrameListData *cx_frame =
00472 av_malloc(sizeof(struct FrameListData));
00473
00474 if (!cx_frame) {
00475 av_log(avctx, AV_LOG_ERROR,
00476 "Frame queue element alloc failed\n");
00477 return AVERROR(ENOMEM);
00478 }
00479 cx_pktcpy(cx_frame, pkt);
00480 cx_frame->buf = av_malloc(cx_frame->sz);
00481
00482 if (!cx_frame->buf) {
00483 av_log(avctx, AV_LOG_ERROR,
00484 "Data buffer alloc (%zu bytes) failed\n",
00485 cx_frame->sz);
00486 av_free(cx_frame);
00487 return AVERROR(ENOMEM);
00488 }
00489 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
00490 coded_frame_add(&ctx->coded_frame_list, cx_frame);
00491 }
00492 break;
00493 case VPX_CODEC_STATS_PKT: {
00494 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
00495 stats->buf = av_realloc_f(stats->buf, 1,
00496 stats->sz + pkt->data.twopass_stats.sz);
00497 if (!stats->buf) {
00498 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
00499 return AVERROR(ENOMEM);
00500 }
00501 memcpy((uint8_t*)stats->buf + stats->sz,
00502 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
00503 stats->sz += pkt->data.twopass_stats.sz;
00504 break;
00505 }
00506 case VPX_CODEC_PSNR_PKT:
00507 case VPX_CODEC_CUSTOM_PKT:
00508
00509 break;
00510 }
00511 }
00512
00513 return size;
00514 }
00515
00516 static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
00517 void *data)
00518 {
00519 VP8Context *ctx = avctx->priv_data;
00520 AVFrame *frame = data;
00521 struct vpx_image *rawimg = NULL;
00522 int64_t timestamp = 0;
00523 int res, coded_size;
00524
00525 if (frame) {
00526 rawimg = &ctx->rawimg;
00527 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
00528 rawimg->planes[VPX_PLANE_U] = frame->data[1];
00529 rawimg->planes[VPX_PLANE_V] = frame->data[2];
00530 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
00531 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
00532 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
00533 timestamp = frame->pts;
00534 }
00535
00536 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
00537 avctx->ticks_per_frame, 0, ctx->deadline);
00538 if (res != VPX_CODEC_OK) {
00539 log_encoder_error(avctx, "Error encoding frame");
00540 return AVERROR_INVALIDDATA;
00541 }
00542 coded_size = queue_frames(avctx, buf, buf_size, avctx->coded_frame);
00543
00544 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
00545 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
00546
00547 avctx->stats_out = av_malloc(b64_size);
00548 if (!avctx->stats_out) {
00549 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
00550 b64_size);
00551 return AVERROR(ENOMEM);
00552 }
00553 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
00554 ctx->twopass_stats.sz);
00555 }
00556 return coded_size;
00557 }
00558
00559 #define OFFSET(x) offsetof(VP8Context, x)
00560 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
00561 static const AVOption options[] = {
00562 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE},
00563 { "auto-alt-ref", "Enable use of alternate reference "
00564 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {-1}, -1, 1, VE},
00565 { "lag-in-frames", "Number of frames to look ahead for "
00566 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
00567 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
00568 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
00569 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE, "arnr_type"},
00570 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {1}, 0, 0, VE, "arnr_type" },
00571 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {2}, 0, 0, VE, "arnr_type" },
00572 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {3}, 0, 0, VE, "arnr_type" },
00573 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
00574 { "best", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
00575 { "good", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
00576 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_REALTIME}, 0, 0, VE, "quality"},
00577 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, VE, "er"},
00578 #ifdef VPX_ERROR_RESILIENT_DEFAULT
00579 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
00580 { "partitions", "The frame partitions are independently decodable "
00581 "by the bool decoder, meaning that partitions can be decoded even "
00582 "though earlier partitions have been lost. Note that intra predicition"
00583 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
00584 #endif
00585 {"speed", "", offsetof(VP8Context, cpu_used), AV_OPT_TYPE_INT, {.dbl = 3}, -16, 16, VE},
00586 {"quality", "", offsetof(VP8Context, deadline), AV_OPT_TYPE_INT, {.dbl = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
00587 {"vp8flags", "", offsetof(VP8Context, flags), FF_OPT_TYPE_FLAGS, {.dbl = 0}, 0, UINT_MAX, VE, "flags"},
00588 {"error_resilient", "enable error resilience", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_ERROR_RESILIENT}, INT_MIN, INT_MAX, VE, "flags"},
00589 {"altref", "enable use of alternate reference frames (VP8/2-pass only)", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_AUTO_ALT_REF}, INT_MIN, INT_MAX, VE, "flags"},
00590 {"arnr_max_frames", "altref noise reduction max frame count", offsetof(VP8Context, arnr_max_frames), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 15, VE},
00591 {"arnr_strength", "altref noise reduction filter strength", offsetof(VP8Context, arnr_strength), AV_OPT_TYPE_INT, {.dbl = 3}, 0, 6, VE},
00592 {"arnr_type", "altref noise reduction filter type", offsetof(VP8Context, arnr_type), AV_OPT_TYPE_INT, {.dbl = 3}, 1, 3, VE},
00593 #if FF_API_X264_GLOBAL_OPTS
00594 {"rc_lookahead", "Number of frames to look ahead for alternate reference frame selection", offsetof(VP8Context, lag_in_frames), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 25, VE},
00595 {"crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 63, VE},
00596 #else
00597 {"rc_lookahead", "Number of frames to look ahead for alternate reference frame selection", offsetof(VP8Context, lag_in_frames), AV_OPT_TYPE_INT, {.dbl = 25}, 0, 25, VE},
00598 {"crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 63, VE},
00599 #endif
00600 {NULL}
00601 };
00602
00603 static const AVClass class = {
00604 .class_name = "libvpx encoder",
00605 .item_name = av_default_item_name,
00606 .option = options,
00607 .version = LIBAVUTIL_VERSION_INT,
00608 };
00609
00610 static const AVCodecDefault defaults[] = {
00611 { "qmin", "-1" },
00612 { "qmax", "-1" },
00613 { "g", "-1" },
00614 { "keyint_min", "-1" },
00615 { NULL },
00616 };
00617
00618 AVCodec ff_libvpx_encoder = {
00619 .name = "libvpx",
00620 .type = AVMEDIA_TYPE_VIDEO,
00621 .id = CODEC_ID_VP8,
00622 .priv_data_size = sizeof(VP8Context),
00623 .init = vp8_init,
00624 .encode = vp8_encode,
00625 .close = vp8_free,
00626 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
00627 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
00628 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
00629 .priv_class = &class,
00630 .defaults = defaults,
00631 };
