| /* |
| * Copyright (c) 2010, Google, Inc. |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file |
| * VP8 encoder support via libvpx |
| */ |
| |
| #define VPX_DISABLE_CTRL_TYPECHECKS 1 |
| #define VPX_CODEC_DISABLE_COMPAT 1 |
| #include <vpx/vpx_encoder.h> |
| #include <vpx/vp8cx.h> |
| |
| #include "avcodec.h" |
| #include "internal.h" |
| #include "libavutil/base64.h" |
| #include "libavutil/mathematics.h" |
| #include "libavutil/opt.h" |
| |
| /** |
| * Portion of struct vpx_codec_cx_pkt from vpx_encoder.h. |
| * One encoded frame returned from the library. |
| */ |
| struct FrameListData { |
| void *buf; /**< compressed data buffer */ |
| size_t sz; /**< length of compressed data */ |
| int64_t pts; /**< time stamp to show frame |
| (in timebase units) */ |
| unsigned long duration; /**< duration to show frame |
| (in timebase units) */ |
| uint32_t flags; /**< flags for this frame */ |
| struct FrameListData *next; |
| }; |
| |
| typedef struct VP8EncoderContext { |
| AVClass *class; |
| struct vpx_codec_ctx encoder; |
| struct vpx_image rawimg; |
| struct vpx_fixed_buf twopass_stats; |
| int deadline; //i.e., RT/GOOD/BEST |
| struct FrameListData *coded_frame_list; |
| |
| int cpu_used; |
| /** |
| * VP8 specific flags, see VP8F_* below. |
| */ |
| int flags; |
| #define VP8F_ERROR_RESILIENT 0x00000001 ///< Enable measures appropriate for streaming over lossy links |
| #define VP8F_AUTO_ALT_REF 0x00000002 ///< Enable automatic alternate reference frame generation |
| |
| int auto_alt_ref; |
| |
| int arnr_max_frames; |
| int arnr_strength; |
| int arnr_type; |
| |
| int lag_in_frames; |
| int error_resilient; |
| int crf; |
| } VP8Context; |
| |
| /** String mappings for enum vp8e_enc_control_id */ |
| static const char *ctlidstr[] = { |
| [VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY", |
| [VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE", |
| [VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE", |
| [VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP", |
| [VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP", |
| [VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE", |
| [VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED", |
| [VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF", |
| [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY", |
| [VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS", |
| [VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD", |
| [VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS", |
| [VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER", |
| [VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES", |
| [VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH", |
| [VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE", |
| [VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL", |
| }; |
| |
| static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc) |
| { |
| VP8Context *ctx = avctx->priv_data; |
| const char *error = vpx_codec_error(&ctx->encoder); |
| const char *detail = vpx_codec_error_detail(&ctx->encoder); |
| |
| av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error); |
| if (detail) |
| av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail); |
| } |
| |
| static av_cold void dump_enc_cfg(AVCodecContext *avctx, |
| const struct vpx_codec_enc_cfg *cfg) |
| { |
| int width = -30; |
| int level = AV_LOG_DEBUG; |
| |
| av_log(avctx, level, "vpx_codec_enc_cfg\n"); |
| av_log(avctx, level, "generic settings\n" |
| " %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n" |
| " %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n", |
| width, "g_usage:", cfg->g_usage, |
| width, "g_threads:", cfg->g_threads, |
| width, "g_profile:", cfg->g_profile, |
| width, "g_w:", cfg->g_w, |
| width, "g_h:", cfg->g_h, |
| width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den, |
| width, "g_error_resilient:", cfg->g_error_resilient, |
| width, "g_pass:", cfg->g_pass, |
| width, "g_lag_in_frames:", cfg->g_lag_in_frames); |
| av_log(avctx, level, "rate control settings\n" |
| " %*s%u\n %*s%u\n %*s%u\n %*s%u\n" |
| " %*s%d\n %*s%p(%zu)\n %*s%u\n", |
| width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh, |
| width, "rc_resize_allowed:", cfg->rc_resize_allowed, |
| width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh, |
| width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh, |
| width, "rc_end_usage:", cfg->rc_end_usage, |
| width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz, |
| width, "rc_target_bitrate:", cfg->rc_target_bitrate); |
| av_log(avctx, level, "quantizer settings\n" |
| " %*s%u\n %*s%u\n", |
| width, "rc_min_quantizer:", cfg->rc_min_quantizer, |
| width, "rc_max_quantizer:", cfg->rc_max_quantizer); |
| av_log(avctx, level, "bitrate tolerance\n" |
| " %*s%u\n %*s%u\n", |
| width, "rc_undershoot_pct:", cfg->rc_undershoot_pct, |
| width, "rc_overshoot_pct:", cfg->rc_overshoot_pct); |
| av_log(avctx, level, "decoder buffer model\n" |
| " %*s%u\n %*s%u\n %*s%u\n", |
| width, "rc_buf_sz:", cfg->rc_buf_sz, |
| width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz, |
| width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz); |
| av_log(avctx, level, "2 pass rate control settings\n" |
| " %*s%u\n %*s%u\n %*s%u\n", |
| width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct, |
| width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct, |
| width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct); |
| av_log(avctx, level, "keyframing settings\n" |
| " %*s%d\n %*s%u\n %*s%u\n", |
| width, "kf_mode:", cfg->kf_mode, |
| width, "kf_min_dist:", cfg->kf_min_dist, |
| width, "kf_max_dist:", cfg->kf_max_dist); |
| av_log(avctx, level, "\n"); |
| } |
| |
| static void coded_frame_add(void *list, struct FrameListData *cx_frame) |
| { |
| struct FrameListData **p = list; |
| |
| while (*p != NULL) |
| p = &(*p)->next; |
| *p = cx_frame; |
| cx_frame->next = NULL; |
| } |
| |
| static av_cold void free_coded_frame(struct FrameListData *cx_frame) |
| { |
| av_freep(&cx_frame->buf); |
| av_freep(&cx_frame); |
| } |
| |
| static av_cold void free_frame_list(struct FrameListData *list) |
| { |
| struct FrameListData *p = list; |
| |
| while (p) { |
| list = list->next; |
| free_coded_frame(p); |
| p = list; |
| } |
| } |
| |
| static av_cold int codecctl_int(AVCodecContext *avctx, |
| enum vp8e_enc_control_id id, int val) |
| { |
| VP8Context *ctx = avctx->priv_data; |
| char buf[80]; |
| int width = -30; |
| int res; |
| |
| snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]); |
| av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val); |
| |
| res = vpx_codec_control(&ctx->encoder, id, val); |
| if (res != VPX_CODEC_OK) { |
| snprintf(buf, sizeof(buf), "Failed to set %s codec control", |
| ctlidstr[id]); |
| log_encoder_error(avctx, buf); |
| } |
| |
| return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL); |
| } |
| |
| static av_cold int vp8_free(AVCodecContext *avctx) |
| { |
| VP8Context *ctx = avctx->priv_data; |
| |
| vpx_codec_destroy(&ctx->encoder); |
| av_freep(&ctx->twopass_stats.buf); |
| av_freep(&avctx->coded_frame); |
| av_freep(&avctx->stats_out); |
| free_frame_list(ctx->coded_frame_list); |
| return 0; |
| } |
| |
| static av_cold int vp8_init(AVCodecContext *avctx) |
| { |
| VP8Context *ctx = avctx->priv_data; |
| const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo; |
| struct vpx_codec_enc_cfg enccfg; |
| int res; |
| |
| av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str()); |
| av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config()); |
| |
| if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) { |
| av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n", |
| vpx_codec_err_to_string(res)); |
| return AVERROR(EINVAL); |
| } |
| dump_enc_cfg(avctx, &enccfg); |
| |
| enccfg.g_w = avctx->width; |
| enccfg.g_h = avctx->height; |
| enccfg.g_timebase.num = avctx->time_base.num; |
| enccfg.g_timebase.den = avctx->time_base.den; |
| enccfg.g_threads = avctx->thread_count; |
| #if FF_API_X264_GLOBAL_OPTS |
| if(avctx->rc_lookahead >= 0) |
| enccfg.g_lag_in_frames= FFMIN(avctx->rc_lookahead, 25); //0-25, avoids init failure |
| if (ctx->lag_in_frames >= 0) |
| enccfg.g_lag_in_frames = ctx->lag_in_frames; |
| #else |
| enccfg.g_lag_in_frames= ctx->lag_in_frames; |
| #endif |
| |
| if (avctx->flags & CODEC_FLAG_PASS1) |
| enccfg.g_pass = VPX_RC_FIRST_PASS; |
| else if (avctx->flags & CODEC_FLAG_PASS2) |
| enccfg.g_pass = VPX_RC_LAST_PASS; |
| else |
| enccfg.g_pass = VPX_RC_ONE_PASS; |
| |
| if (avctx->rc_min_rate == avctx->rc_max_rate && |
| avctx->rc_min_rate == avctx->bit_rate) |
| enccfg.rc_end_usage = VPX_CBR; |
| #if FF_API_X264_GLOBAL_OPTS |
| else if (avctx->crf || ctx->crf > 0) |
| #else |
| else if (ctx->crf) |
| #endif |
| enccfg.rc_end_usage = VPX_CQ; |
| enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000, |
| AV_ROUND_NEAR_INF); |
| if (avctx->qmin > 0) |
| enccfg.rc_min_quantizer = avctx->qmin; |
| if (avctx->qmax > 0) |
| enccfg.rc_max_quantizer = avctx->qmax; |
| enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold; |
| |
| //0-100 (0 => CBR, 100 => VBR) |
| enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100); |
| enccfg.rc_2pass_vbr_minsection_pct = |
| avctx->rc_min_rate * 100LL / avctx->bit_rate; |
| if (avctx->rc_max_rate) |
| enccfg.rc_2pass_vbr_maxsection_pct = |
| avctx->rc_max_rate * 100LL / avctx->bit_rate; |
| |
| if (avctx->rc_buffer_size) |
| enccfg.rc_buf_sz = |
| avctx->rc_buffer_size * 1000LL / avctx->bit_rate; |
| if (avctx->rc_initial_buffer_occupancy) |
| enccfg.rc_buf_initial_sz = |
| avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate; |
| enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6; |
| enccfg.rc_undershoot_pct = round(avctx->rc_buffer_aggressivity * 100); |
| |
| //_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO |
| if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size) |
| enccfg.kf_min_dist = avctx->keyint_min; |
| if (avctx->gop_size >= 0) |
| enccfg.kf_max_dist = avctx->gop_size; |
| |
| if (enccfg.g_pass == VPX_RC_FIRST_PASS) |
| enccfg.g_lag_in_frames = 0; |
| else if (enccfg.g_pass == VPX_RC_LAST_PASS) { |
| int decode_size; |
| |
| if (!avctx->stats_in) { |
| av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4; |
| ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz); |
| if (!ctx->twopass_stats.buf) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Stat buffer alloc (%zu bytes) failed\n", |
| ctx->twopass_stats.sz); |
| return AVERROR(ENOMEM); |
| } |
| decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in, |
| ctx->twopass_stats.sz); |
| if (decode_size < 0) { |
| av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| ctx->twopass_stats.sz = decode_size; |
| enccfg.rc_twopass_stats_in = ctx->twopass_stats; |
| } |
| |
| /* 0-3: For non-zero values the encoder increasingly optimizes for reduced |
| complexity playback on low powered devices at the expense of encode |
| quality. */ |
| if (avctx->profile != FF_PROFILE_UNKNOWN) |
| enccfg.g_profile = avctx->profile; |
| |
| enccfg.g_error_resilient = ctx->error_resilient || ctx->flags & VP8F_ERROR_RESILIENT; |
| |
| dump_enc_cfg(avctx, &enccfg); |
| /* Construct Encoder Context */ |
| res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0); |
| if (res != VPX_CODEC_OK) { |
| log_encoder_error(avctx, "Failed to initialize encoder"); |
| return AVERROR(EINVAL); |
| } |
| |
| //codec control failures are currently treated only as warnings |
| av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n"); |
| if (ctx->cpu_used != INT_MIN) |
| codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used); |
| if (ctx->flags & VP8F_AUTO_ALT_REF) |
| ctx->auto_alt_ref = 1; |
| if (ctx->auto_alt_ref >= 0) |
| codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref); |
| if (ctx->arnr_max_frames >= 0) |
| codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames); |
| if (ctx->arnr_strength >= 0) |
| codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength); |
| if (ctx->arnr_type >= 0) |
| codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type); |
| codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction); |
| codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices)); |
| codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold); |
| #if FF_API_X264_GLOBAL_OPTS |
| codecctl_int(avctx, VP8E_SET_CQ_LEVEL, (int)avctx->crf); |
| if (ctx->crf >= 0) |
| codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf); |
| #else |
| codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf); |
| #endif |
| |
| av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline); |
| |
| //provide dummy value to initialize wrapper, values will be updated each _encode() |
| vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1, |
| (unsigned char*)1); |
| |
| avctx->coded_frame = avcodec_alloc_frame(); |
| if (!avctx->coded_frame) { |
| av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n"); |
| vp8_free(avctx); |
| return AVERROR(ENOMEM); |
| } |
| return 0; |
| } |
| |
| static inline void cx_pktcpy(struct FrameListData *dst, |
| const struct vpx_codec_cx_pkt *src) |
| { |
| dst->pts = src->data.frame.pts; |
| dst->duration = src->data.frame.duration; |
| dst->flags = src->data.frame.flags; |
| dst->sz = src->data.frame.sz; |
| dst->buf = src->data.frame.buf; |
| } |
| |
| /** |
| * Store coded frame information in format suitable for return from encode(). |
| * |
| * Write buffer information from @a cx_frame to @a buf & @a buf_size. |
| * Timing/frame details to @a coded_frame. |
| * @return Frame size written to @a buf on success |
| * @return AVERROR(EINVAL) on error |
| */ |
| static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame, |
| uint8_t *buf, int buf_size, AVFrame *coded_frame) |
| { |
| if ((int) cx_frame->sz <= buf_size) { |
| buf_size = cx_frame->sz; |
| memcpy(buf, cx_frame->buf, buf_size); |
| coded_frame->pts = cx_frame->pts; |
| coded_frame->key_frame = !!(cx_frame->flags & VPX_FRAME_IS_KEY); |
| |
| if (coded_frame->key_frame) |
| coded_frame->pict_type = AV_PICTURE_TYPE_I; |
| else |
| coded_frame->pict_type = AV_PICTURE_TYPE_P; |
| } else { |
| av_log(avctx, AV_LOG_ERROR, |
| "Compressed frame larger than storage provided! (%zu/%d)\n", |
| cx_frame->sz, buf_size); |
| return AVERROR(EINVAL); |
| } |
| return buf_size; |
| } |
| |
| /** |
| * Queue multiple output frames from the encoder, returning the front-most. |
| * In cases where vpx_codec_get_cx_data() returns more than 1 frame append |
| * the frame queue. Return the head frame if available. |
| * @return Stored frame size |
| * @return AVERROR(EINVAL) on output size error |
| * @return AVERROR(ENOMEM) on coded frame queue data allocation error |
| */ |
| static int queue_frames(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
| AVFrame *coded_frame) |
| { |
| VP8Context *ctx = avctx->priv_data; |
| const struct vpx_codec_cx_pkt *pkt; |
| const void *iter = NULL; |
| int size = 0; |
| |
| if (ctx->coded_frame_list) { |
| struct FrameListData *cx_frame = ctx->coded_frame_list; |
| /* return the leading frame if we've already begun queueing */ |
| size = storeframe(avctx, cx_frame, buf, buf_size, coded_frame); |
| if (size < 0) |
| return AVERROR(EINVAL); |
| ctx->coded_frame_list = cx_frame->next; |
| free_coded_frame(cx_frame); |
| } |
| |
| /* consume all available output from the encoder before returning. buffers |
| are only good through the next vpx_codec call */ |
| while ((pkt = vpx_codec_get_cx_data(&ctx->encoder, &iter))) { |
| switch (pkt->kind) { |
| case VPX_CODEC_CX_FRAME_PKT: |
| if (!size) { |
| struct FrameListData cx_frame; |
| |
| /* avoid storing the frame when the list is empty and we haven't yet |
| provided a frame for output */ |
| assert(!ctx->coded_frame_list); |
| cx_pktcpy(&cx_frame, pkt); |
| size = storeframe(avctx, &cx_frame, buf, buf_size, coded_frame); |
| if (size < 0) |
| return AVERROR(EINVAL); |
| } else { |
| struct FrameListData *cx_frame = |
| av_malloc(sizeof(struct FrameListData)); |
| |
| if (!cx_frame) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Frame queue element alloc failed\n"); |
| return AVERROR(ENOMEM); |
| } |
| cx_pktcpy(cx_frame, pkt); |
| cx_frame->buf = av_malloc(cx_frame->sz); |
| |
| if (!cx_frame->buf) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Data buffer alloc (%zu bytes) failed\n", |
| cx_frame->sz); |
| av_free(cx_frame); |
| return AVERROR(ENOMEM); |
| } |
| memcpy(cx_frame->buf, pkt->data.frame.buf, pkt->data.frame.sz); |
| coded_frame_add(&ctx->coded_frame_list, cx_frame); |
| } |
| break; |
| case VPX_CODEC_STATS_PKT: { |
| struct vpx_fixed_buf *stats = &ctx->twopass_stats; |
| stats->buf = av_realloc_f(stats->buf, 1, |
| stats->sz + pkt->data.twopass_stats.sz); |
| if (!stats->buf) { |
| av_log(avctx, AV_LOG_ERROR, "Stat buffer realloc failed\n"); |
| return AVERROR(ENOMEM); |
| } |
| memcpy((uint8_t*)stats->buf + stats->sz, |
| pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz); |
| stats->sz += pkt->data.twopass_stats.sz; |
| break; |
| } |
| case VPX_CODEC_PSNR_PKT: //FIXME add support for CODEC_FLAG_PSNR |
| case VPX_CODEC_CUSTOM_PKT: |
| //ignore unsupported/unrecognized packet types |
| break; |
| } |
| } |
| |
| return size; |
| } |
| |
| static int vp8_encode(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
| void *data) |
| { |
| VP8Context *ctx = avctx->priv_data; |
| AVFrame *frame = data; |
| struct vpx_image *rawimg = NULL; |
| int64_t timestamp = 0; |
| int res, coded_size; |
| |
| if (frame) { |
| rawimg = &ctx->rawimg; |
| rawimg->planes[VPX_PLANE_Y] = frame->data[0]; |
| rawimg->planes[VPX_PLANE_U] = frame->data[1]; |
| rawimg->planes[VPX_PLANE_V] = frame->data[2]; |
| rawimg->stride[VPX_PLANE_Y] = frame->linesize[0]; |
| rawimg->stride[VPX_PLANE_U] = frame->linesize[1]; |
| rawimg->stride[VPX_PLANE_V] = frame->linesize[2]; |
| timestamp = frame->pts; |
| } |
| |
| res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp, |
| avctx->ticks_per_frame, 0, ctx->deadline); |
| if (res != VPX_CODEC_OK) { |
| log_encoder_error(avctx, "Error encoding frame"); |
| return AVERROR_INVALIDDATA; |
| } |
| coded_size = queue_frames(avctx, buf, buf_size, avctx->coded_frame); |
| |
| if (!frame && avctx->flags & CODEC_FLAG_PASS1) { |
| unsigned int b64_size = AV_BASE64_SIZE(ctx->twopass_stats.sz); |
| |
| avctx->stats_out = av_malloc(b64_size); |
| if (!avctx->stats_out) { |
| av_log(avctx, AV_LOG_ERROR, "Stat buffer alloc (%d bytes) failed\n", |
| b64_size); |
| return AVERROR(ENOMEM); |
| } |
| av_base64_encode(avctx->stats_out, b64_size, ctx->twopass_stats.buf, |
| ctx->twopass_stats.sz); |
| } |
| return coded_size; |
| } |
| |
| #define OFFSET(x) offsetof(VP8Context, x) |
| #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
| static const AVOption options[] = { |
| { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE}, |
| { "auto-alt-ref", "Enable use of alternate reference " |
| "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {-1}, -1, 1, VE}, |
| { "lag-in-frames", "Number of frames to look ahead for " |
| "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE}, |
| { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE}, |
| { "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE}, |
| { "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE, "arnr_type"}, |
| { "backward", NULL, 0, AV_OPT_TYPE_CONST, {1}, 0, 0, VE, "arnr_type" }, |
| { "forward", NULL, 0, AV_OPT_TYPE_CONST, {2}, 0, 0, VE, "arnr_type" }, |
| { "centered", NULL, 0, AV_OPT_TYPE_CONST, {3}, 0, 0, VE, "arnr_type" }, |
| { "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"}, |
| { "best", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"}, |
| { "good", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"}, |
| { "realtime", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_REALTIME}, 0, 0, VE, "quality"}, |
| { "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, VE, "er"}, |
| #ifdef VPX_ERROR_RESILIENT_DEFAULT |
| { "default", "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"}, |
| { "partitions", "The frame partitions are independently decodable " |
| "by the bool decoder, meaning that partitions can be decoded even " |
| "though earlier partitions have been lost. Note that intra predicition" |
| " is still done over the partition boundary.", 0, AV_OPT_TYPE_CONST, {VPX_ERROR_RESILIENT_PARTITIONS}, 0, 0, VE, "er"}, |
| #endif |
| {"speed", "", offsetof(VP8Context, cpu_used), AV_OPT_TYPE_INT, {.dbl = 3}, -16, 16, VE}, |
| {"quality", "", offsetof(VP8Context, deadline), AV_OPT_TYPE_INT, {.dbl = VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"}, |
| {"vp8flags", "", offsetof(VP8Context, flags), FF_OPT_TYPE_FLAGS, {.dbl = 0}, 0, UINT_MAX, VE, "flags"}, |
| {"error_resilient", "enable error resilience", 0, FF_OPT_TYPE_CONST, {.dbl = VP8F_ERROR_RESILIENT}, INT_MIN, INT_MAX, VE, "flags"}, |
| {"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"}, |
| {"arnr_max_frames", "altref noise reduction max frame count", offsetof(VP8Context, arnr_max_frames), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 15, VE}, |
| {"arnr_strength", "altref noise reduction filter strength", offsetof(VP8Context, arnr_strength), AV_OPT_TYPE_INT, {.dbl = 3}, 0, 6, VE}, |
| {"arnr_type", "altref noise reduction filter type", offsetof(VP8Context, arnr_type), AV_OPT_TYPE_INT, {.dbl = 3}, 1, 3, VE}, |
| #if FF_API_X264_GLOBAL_OPTS |
| {"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}, |
| {"crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 63, VE}, |
| #else |
| {"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}, |
| {"crf", "Select the quality for constant quality mode", offsetof(VP8Context, crf), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 63, VE}, |
| #endif |
| {NULL} |
| }; |
| |
| static const AVClass class = { |
| .class_name = "libvpx encoder", |
| .item_name = av_default_item_name, |
| .option = options, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| |
| static const AVCodecDefault defaults[] = { |
| { "qmin", "-1" }, |
| { "qmax", "-1" }, |
| { "g", "-1" }, |
| { "keyint_min", "-1" }, |
| { NULL }, |
| }; |
| |
| AVCodec ff_libvpx_encoder = { |
| .name = "libvpx", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = CODEC_ID_VP8, |
| .priv_data_size = sizeof(VP8Context), |
| .init = vp8_init, |
| .encode = vp8_encode, |
| .close = vp8_free, |
| .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS, |
| .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, |
| .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"), |
| .priv_class = &class, |
| .defaults = defaults, |
| }; |
