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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 unsigned long deadline;
00058 struct FrameListData *coded_frame_list;
00059 int cpu_used;
00060 int auto_alt_ref;
00061 int arnr_max_frames;
00062 int arnr_strength;
00063 int arnr_type;
00064 int lag_in_frames;
00065 int error_resilient;
00066 } VP8Context;
00067
00069 static const char *ctlidstr[] = {
00070 [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
00071 [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
00072 [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
00073 [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
00074 [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
00075 [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
00076 [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
00077 [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
00078 [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
00079 [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
00080 [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
00081 [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
00082 [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
00083 [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
00084 [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
00085 [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
00086 };
00087
00088 static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
00089 {
00090 VP8Context *ctx = avctx->priv_data;
00091 const char *error = vpx_codec_error(&ctx->encoder);
00092 const char *detail = vpx_codec_error_detail(&ctx->encoder);
00093
00094 av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
00095 if (detail)
00096 av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
00097 }
00098
00099 static av_cold void dump_enc_cfg(AVCodecContext *avctx,
00100 const struct vpx_codec_enc_cfg *cfg)
00101 {
00102 int width = -30;
00103 int level = AV_LOG_DEBUG;
00104
00105 av_log(avctx, level, "vpx_codec_enc_cfg\n");
00106 av_log(avctx, level, "generic settings\n"
00107 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
00108 " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
00109 width, "g_usage:", cfg->g_usage,
00110 width, "g_threads:", cfg->g_threads,
00111 width, "g_profile:", cfg->g_profile,
00112 width, "g_w:", cfg->g_w,
00113 width, "g_h:", cfg->g_h,
00114 width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
00115 width, "g_error_resilient:", cfg->g_error_resilient,
00116 width, "g_pass:", cfg->g_pass,
00117 width, "g_lag_in_frames:", cfg->g_lag_in_frames);
00118 av_log(avctx, level, "rate control settings\n"
00119 " %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
00120 " %*s%d\n %*s%p(%zu)\n %*s%u\n",
00121 width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
00122 width, "rc_resize_allowed:", cfg->rc_resize_allowed,
00123 width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
00124 width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
00125 width, "rc_end_usage:", cfg->rc_end_usage,
00126 width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
00127 width, "rc_target_bitrate:", cfg->rc_target_bitrate);
00128 av_log(avctx, level, "quantizer settings\n"
00129 " %*s%u\n %*s%u\n",
00130 width, "rc_min_quantizer:", cfg->rc_min_quantizer,
00131 width, "rc_max_quantizer:", cfg->rc_max_quantizer);
00132 av_log(avctx, level, "bitrate tolerance\n"
00133 " %*s%u\n %*s%u\n",
00134 width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
00135 width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
00136 av_log(avctx, level, "decoder buffer model\n"
00137 " %*s%u\n %*s%u\n %*s%u\n",
00138 width, "rc_buf_sz:", cfg->rc_buf_sz,
00139 width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
00140 width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
00141 av_log(avctx, level, "2 pass rate control settings\n"
00142 " %*s%u\n %*s%u\n %*s%u\n",
00143 width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
00144 width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
00145 width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
00146 av_log(avctx, level, "keyframing settings\n"
00147 " %*s%d\n %*s%u\n %*s%u\n",
00148 width, "kf_mode:", cfg->kf_mode,
00149 width, "kf_min_dist:", cfg->kf_min_dist,
00150 width, "kf_max_dist:", cfg->kf_max_dist);
00151 av_log(avctx, level, "\n");
00152 }
00153
00154 static void coded_frame_add(void *list, struct FrameListData *cx_frame)
00155 {
00156 struct FrameListData **p = list;
00157
00158 while (*p != NULL)
00159 p = &(*p)->next;
00160 *p = cx_frame;
00161 cx_frame->next = NULL;
00162 }
00163
00164 static av_cold void free_coded_frame(struct FrameListData *cx_frame)
00165 {
00166 av_freep(&cx_frame->buf);
00167 av_freep(&cx_frame);
00168 }
00169
00170 static av_cold void free_frame_list(struct FrameListData *list)
00171 {
00172 struct FrameListData *p = list;
00173
00174 while (p) {
00175 list = list->next;
00176 free_coded_frame(p);
00177 p = list;
00178 }
00179 }
00180
00181 static av_cold int codecctl_int(AVCodecContext *avctx,
00182 enum vp8e_enc_control_id id, int val)
00183 {
00184 VP8Context *ctx = avctx->priv_data;
00185 char buf[80];
00186 int width = -30;
00187 int res;
00188
00189 snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
00190 av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
00191
00192 res = vpx_codec_control(&ctx->encoder, id, val);
00193 if (res != VPX_CODEC_OK) {
00194 snprintf(buf, sizeof(buf), "Failed to set %s codec control",
00195 ctlidstr[id]);
00196 log_encoder_error(avctx, buf);
00197 }
00198
00199 return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
00200 }
00201
00202 static av_cold int vp8_free(AVCodecContext *avctx)
00203 {
00204 VP8Context *ctx = avctx->priv_data;
00205
00206 vpx_codec_destroy(&ctx->encoder);
00207 av_freep(&ctx->twopass_stats.buf);
00208 av_freep(&avctx->coded_frame);
00209 av_freep(&avctx->stats_out);
00210 free_frame_list(ctx->coded_frame_list);
00211 return 0;
00212 }
00213
00214 static av_cold int vp8_init(AVCodecContext *avctx)
00215 {
00216 VP8Context *ctx = avctx->priv_data;
00217 const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
00218 struct vpx_codec_enc_cfg enccfg;
00219 int res;
00220
00221 av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
00222 av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
00223
00224 if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
00225 av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
00226 vpx_codec_err_to_string(res));
00227 return AVERROR(EINVAL);
00228 }
00229 dump_enc_cfg(avctx, &enccfg);
00230
00231 enccfg.g_w = avctx->width;
00232 enccfg.g_h = avctx->height;
00233 enccfg.g_timebase.num = avctx->time_base.num;
00234 enccfg.g_timebase.den = avctx->time_base.den;
00235 enccfg.g_threads = avctx->thread_count;
00236
00237 if (ctx->lag_in_frames >= 0)
00238 enccfg.g_lag_in_frames = ctx->lag_in_frames;
00239
00240 if (avctx->flags & CODEC_FLAG_PASS1)
00241 enccfg.g_pass = VPX_RC_FIRST_PASS;
00242 else if (avctx->flags & CODEC_FLAG_PASS2)
00243 enccfg.g_pass = VPX_RC_LAST_PASS;
00244 else
00245 enccfg.g_pass = VPX_RC_ONE_PASS;
00246
00247 if (avctx->rc_min_rate == avctx->rc_max_rate &&
00248 avctx->rc_min_rate == avctx->bit_rate)
00249 enccfg.rc_end_usage = VPX_CBR;
00250 enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
00251 AV_ROUND_NEAR_INF);
00252 if (avctx->qmin > 0)
00253 enccfg.rc_min_quantizer = avctx->qmin;
00254 if (avctx->qmax > 0)
00255 enccfg.rc_max_quantizer = avctx->qmax;
00256 enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
00257
00258
00259 enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
00260 enccfg.rc_2pass_vbr_minsection_pct =
00261 avctx->rc_min_rate * 100LL / avctx->bit_rate;
00262 if (avctx->rc_max_rate)
00263 enccfg.rc_2pass_vbr_maxsection_pct =
00264 avctx->rc_max_rate * 100LL / avctx->bit_rate;
00265
00266 if (avctx->rc_buffer_size)
00267 enccfg.rc_buf_sz =
00268 avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
00269 if (avctx->rc_initial_buffer_occupancy)
00270 enccfg.rc_buf_initial_sz =
00271 avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
00272 enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
00273
00274
00275 if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
00276 enccfg.kf_min_dist = avctx->keyint_min;
00277 if (avctx->gop_size >= 0)
00278 enccfg.kf_max_dist = avctx->gop_size;
00279
00280 if (enccfg.g_pass == VPX_RC_FIRST_PASS)
00281 enccfg.g_lag_in_frames = 0;
00282 else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
00283 int decode_size;
00284
00285 if (!avctx->stats_in) {
00286 av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
00287 return AVERROR_INVALIDDATA;
00288 }
00289
00290 ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
00291 ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
00292 if (!ctx->twopass_stats.buf) {
00293 av_log(avctx, AV_LOG_ERROR,
00294 "Stat buffer alloc (%zu bytes) failed\n",
00295 ctx->twopass_stats.sz);
00296 return AVERROR(ENOMEM);
00297 }
00298 decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
00299 ctx->twopass_stats.sz);
00300 if (decode_size < 0) {
00301 av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
00302 return AVERROR_INVALIDDATA;
00303 }
00304
00305 ctx->twopass_stats.sz = decode_size;
00306 enccfg.rc_twopass_stats_in = ctx->twopass_stats;
00307 }
00308
00309
00310
00311
00312 if (avctx->profile != FF_PROFILE_UNKNOWN)
00313 enccfg.g_profile = avctx->profile;
00314
00315 enccfg.g_error_resilient = ctx->error_resilient;
00316
00317 dump_enc_cfg(avctx, &enccfg);
00318
00319 res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
00320 if (res != VPX_CODEC_OK) {
00321 log_encoder_error(avctx, "Failed to initialize encoder");
00322 return AVERROR(EINVAL);
00323 }
00324
00325
00326 av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
00327 if (ctx->cpu_used != INT_MIN)
00328 codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
00329 if (ctx->auto_alt_ref >= 0)
00330 codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
00331 if (ctx->arnr_max_frames >= 0)
00332 codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
00333 if (ctx->arnr_strength >= 0)
00334 codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
00335 if (ctx->arnr_type >= 0)
00336 codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
00337 codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
00338 codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
00339 codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
00340
00341
00342 vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
00343 (unsigned char*)1);
00344
00345 avctx->coded_frame = avcodec_alloc_frame();
00346 if (!avctx->coded_frame) {
00347 av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
00348 vp8_free(avctx);
00349 return AVERROR(ENOMEM);
00350 }
00351 return 0;
00352 }
00353
00354 static inline void cx_pktcpy(struct FrameListData *dst,
00355 const struct vpx_codec_cx_pkt *src)
00356 {
00357 dst->pts = src->data.frame.pts;
00358 dst->duration = src->data.frame.duration;
00359 dst->flags = src->data.frame.flags;
00360 dst->sz = src->data.frame.sz;
00361 dst->buf = src->data.frame.buf;
00362 }
00363
00372 static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
00373 uint8_t *buf, int buf_size, AVFrame *coded_frame)
00374 {
00375 if ((int) cx_frame->sz <= buf_size) {
00376 buf_size = cx_frame->sz;
00377 memcpy(buf, cx_frame->buf, buf_size);
00378 coded_frame->pts = cx_frame->pts;
00379 coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY);
00380
00381 if (coded_frame->key_frame)
00382 coded_frame->pict_type = AV_PICTURE_TYPE_I;
00383 else
00384 coded_frame->pict_type = AV_PICTURE_TYPE_P;
00385 } else {
00386 av_log(avctx, AV_LOG_ERROR,
00387 "Compressed frame larger than storage provided! (%zu/%d)\n",
00388 cx_frame->sz, buf_size);
00389 return AVERROR(EINVAL);
00390 }
00391 return buf_size;
00392 }
00393
00402 static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size,
00403 AVFrame *coded_frame)
00404 {
00405 VP8Context *ctx = avctx->priv_data;
00406 const struct vpx_codec_cx_pkt *pkt;
00407 const void *iter = NULL;
00408 int size = 0;
00409
00410 if (ctx->coded_frame_list) {
00411 struct FrameListData *cx_frame = ctx->coded_frame_list;
00412
00413 size = storeframe(avctx, cx_frame, buf, buf_size, coded_frame);
00414 if (size < 0)
00415 return AVERROR(EINVAL);
00416 ctx->coded_frame_list = cx_frame->next;
00417 free_coded_frame(cx_frame);
00418 }
00419
00420
00421
00422 while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) {
00423 switch (pkt->kind) {
00424 case VPX_CODEC_CX_FRAME_PKT:
00425 if (!size) {
00426 struct FrameListData cx_frame;
00427
00428
00429
00430 assert(!ctx->coded_frame_list);
00431 cx_pktcpy(&cx_frame, pkt);
00432 size = storeframe(avctx, &cx_frame, buf, buf_size, coded_frame);
00433 if (size < 0)
00434 return AVERROR(EINVAL);
00435 } else {
00436 struct FrameListData *cx_frame =
00437 av_malloc(sizeof(struct FrameListData));
00438
00439 if (!cx_frame) {
00440 av_log(avctx, AV_LOG_ERROR,
00441 "Frame queue element alloc failed\n");
00442 return AVERROR(ENOMEM);
00443 }
00444 cx_pktcpy(cx_frame, pkt);
00445 cx_frame->buf = av_malloc(cx_frame->sz);
00446
00447 if (!cx_frame->buf) {
00448 av_log(avctx, AV_LOG_ERROR,
00449 "Data buffer alloc (%zu bytes) failed\n",
00450 cx_frame->sz);
00451 return AVERROR(ENOMEM);
00452 }
00453 memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz);
00454 coded_frame_add(&ctx->coded_frame_list, cx_frame);
00455 }
00456 break;
00457 case VPX_CODEC_STATS_PKT: {
00458 struct vpx_fixed_buf *stats = &ctx->twopass_stats;
00459 stats->buf = av_realloc(stats->buf,
00460 stats->sz + pkt->data.twopass_stats.sz);
00461 if (!stats->buf) {
00462 av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n");
00463 return AVERROR(ENOMEM);
00464 }
00465 memcpy((uint8_t*)stats->buf + stats->sz,
00466 pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz);
00467 stats->sz += pkt->data.twopass_stats.sz;
00468 break;
00469 }
00470 case VPX_CODEC_PSNR_PKT:
00471 case VPX_CODEC_CUSTOM_PKT:
00472
00473 break;
00474 }
00475 }
00476
00477 return size;
00478 }
00479
00480 static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size,
00481 void *data)
00482 {
00483 VP8Context *ctx = avctx->priv_data;
00484 AVFrame *frame = data;
00485 struct vpx_image *rawimg = NULL;
00486 int64_t timestamp = 0;
00487 int res, coded_size;
00488
00489 if (frame) {
00490 rawimg = &ctx->rawimg;
00491 rawimg->planes[VPX_PLANE_Y] = frame->data[0];
00492 rawimg->planes[VPX_PLANE_U] = frame->data[1];
00493 rawimg->planes[VPX_PLANE_V] = frame->data[2];
00494 rawimg->stride[VPX_PLANE_Y] = frame->linesize[0];
00495 rawimg->stride[VPX_PLANE_U] = frame->linesize[1];
00496 rawimg->stride[VPX_PLANE_V] = frame->linesize[2];
00497 timestamp = frame->pts;
00498 }
00499
00500 res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
00501 avctx->ticks_per_frame, 0, ctx->deadline);
00502 if (res != VPX_CODEC_OK) {
00503 log_encoder_error(avctx, "Error encoding frame");
00504 return AVERROR_INVALIDDATA;
00505 }
00506 coded_size = queue_frames(avctx, buf, buf_size, avctx->coded_frame);
00507
00508 if (!frame && avctx->flags & CODEC_FLAG_PASS1) {
00509 unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz);
00510
00511 avctx->stats_out = av_malloc(b64_size);
00512 if (!avctx->stats_out) {
00513 av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n",
00514 b64_size);
00515 return AVERROR(ENOMEM);
00516 }
00517 av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf,
00518 ctx->twopass_stats.sz);
00519 }
00520 return coded_size;
00521 }
00522
00523 #define OFFSET(x) offsetof(VP8Context, x)
00524 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
00525 static const AVOption options[] = {
00526 { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE},
00527 { "auto-alt-ref", "Enable use of alternate reference "
00528 "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {-1}, -1, 1, VE},
00529 { "lag-in-frames", "Number of frames to look ahead for "
00530 "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
00531 { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
00532 { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
00533 { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE, "arnr_type"},
00534 { "backward", NULL, 0, AV_OPT_TYPE_CONST, {1}, 0, 0, VE, "arnr_type" },
00535 { "forward", NULL, 0, AV_OPT_TYPE_CONST, {2}, 0, 0, VE, "arnr_type" },
00536 { "centered", NULL, 0, AV_OPT_TYPE_CONST, {3}, 0, 0, VE, "arnr_type" },
00537 { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
00538 { "best", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
00539 { "good", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
00540 { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_REALTIME}, 0, 0, VE, "quality"},
00541 { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, VE, "er"},
00542 #ifdef VPX_ERROR_RESILIENT_DEFAULT
00543 { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
00544 { "partitions", "The frame partitions are independently decodable "
00545 "by the bool decoder, meaning that partitions can be decoded even "
00546 "though earlier partitions have been lost. Note that intra predicition"
00547 " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"},
00548 #endif
00549 { NULL }
00550 };
00551
00552 static const AVClass class = {
00553 .class_name = "libvpx encoder",
00554 .item_name = av_default_item_name,
00555 .option = options,
00556 .version = LIBAVUTIL_VERSION_INT,
00557 };
00558
00559 static const AVCodecDefault defaults[] = {
00560 { "qmin", "-1" },
00561 { "qmax", "-1" },
00562 { "g", "-1" },
00563 { "keyint_min", "-1" },
00564 { NULL },
00565 };
00566
00567 AVCodec ff_libvpx_encoder = {
00568 .name = "libvpx",
00569 .type = AVMEDIA_TYPE_VIDEO,
00570 .id = CODEC_ID_VP8,
00571 .priv_data_size = sizeof(VP8Context),
00572 .init = vp8_init,
00573 .encode = vp8_encode,
00574 .close = vp8_free,
00575 .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
00576 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
00577 .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
00578 .priv_class = &class,
00579 .defaults = defaults,
00580 };