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@ -0,0 +1,489 @@
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/*
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* Copyright (c) 2010, Google, Inc.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* VP8 encoder support via libvpx
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*/
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#define VPX_DISABLE_CTRL_TYPECHECKS 1
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#define VPX_CODEC_DISABLE_COMPAT 1
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#include <vpx/vpx_encoder.h>
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#include <vpx/vp8cx.h>
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#include "avcodec.h"
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#include "libavutil/base64.h"
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/**
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* Portion of struct vpx_codec_cx_pkt from vpx_encoder.h.
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* One encoded frame returned from the library.
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*/
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struct FrameListData {
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void *buf; /**≤ compressed data buffer */
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size_t sz; /**≤ length of compressed data */
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int64_t pts; /**≤ time stamp to show frame
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(in timebase units) */
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unsigned long duration; /**≤ duration to show frame
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(in timebase units) */
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uint32_t flags; /**≤ flags for this frame */
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struct FrameListData *next;
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};
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typedef struct VP8EncoderContext {
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struct vpx_codec_ctx encoder;
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struct vpx_image rawimg;
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struct vpx_fixed_buf twopass_stats;
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unsigned long deadline; //i.e., RT/GOOD/BEST
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struct FrameListData *coded_frame_list;
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} VP8Context;
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/** String mappings for enum vp8e_enc_control_id */
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static const char *ctlidstr[] = {
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[VP8E_UPD_ENTROPY] = "VP8E_UPD_ENTROPY",
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[VP8E_UPD_REFERENCE] = "VP8E_UPD_REFERENCE",
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[VP8E_USE_REFERENCE] = "VP8E_USE_REFERENCE",
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[VP8E_SET_ROI_MAP] = "VP8E_SET_ROI_MAP",
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[VP8E_SET_ACTIVEMAP] = "VP8E_SET_ACTIVEMAP",
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[VP8E_SET_SCALEMODE] = "VP8E_SET_SCALEMODE",
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[VP8E_SET_CPUUSED] = "VP8E_SET_CPUUSED",
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[VP8E_SET_ENABLEAUTOALTREF] = "VP8E_SET_ENABLEAUTOALTREF",
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[VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
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[VP8E_SET_SHARPNESS] = "VP8E_SET_SHARPNESS",
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[VP8E_SET_STATIC_THRESHOLD] = "VP8E_SET_STATIC_THRESHOLD",
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[VP8E_SET_TOKEN_PARTITIONS] = "VP8E_SET_TOKEN_PARTITIONS",
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[VP8E_GET_LAST_QUANTIZER] = "VP8E_GET_LAST_QUANTIZER",
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[VP8E_SET_ARNR_MAXFRAMES] = "VP8E_SET_ARNR_MAXFRAMES",
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[VP8E_SET_ARNR_STRENGTH] = "VP8E_SET_ARNR_STRENGTH",
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[VP8E_SET_ARNR_TYPE] = "VP8E_SET_ARNR_TYPE",
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};
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static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
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{
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VP8Context *ctx = avctx->priv_data;
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const char *error = vpx_codec_error(&ctx->encoder);
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const char *detail = vpx_codec_error_detail(&ctx->encoder);
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av_log(avctx, AV_LOG_ERROR, "%s: %s\n", desc, error);
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if (detail)
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av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n", detail);
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}
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static av_cold void dump_enc_cfg(AVCodecContext *avctx,
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const struct vpx_codec_enc_cfg *cfg)
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{
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int width = -30;
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int level = AV_LOG_DEBUG;
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av_log(avctx, level, "vpx_codec_enc_cfg\n");
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av_log(avctx, level, "generic settings\n"
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" %*s%u\n %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
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" %*s{%u/%u}\n %*s%u\n %*s%d\n %*s%u\n",
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width, "g_usage:", cfg->g_usage,
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width, "g_threads:", cfg->g_threads,
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width, "g_profile:", cfg->g_profile,
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width, "g_w:", cfg->g_w,
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width, "g_h:", cfg->g_h,
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width, "g_timebase:", cfg->g_timebase.num, cfg->g_timebase.den,
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width, "g_error_resilient:", cfg->g_error_resilient,
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width, "g_pass:", cfg->g_pass,
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width, "g_lag_in_frames:", cfg->g_lag_in_frames);
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av_log(avctx, level, "rate control settings\n"
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" %*s%u\n %*s%u\n %*s%u\n %*s%u\n"
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" %*s%d\n %*s%p(%zu)\n %*s%u\n",
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width, "rc_dropframe_thresh:", cfg->rc_dropframe_thresh,
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width, "rc_resize_allowed:", cfg->rc_resize_allowed,
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width, "rc_resize_up_thresh:", cfg->rc_resize_up_thresh,
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width, "rc_resize_down_thresh:", cfg->rc_resize_down_thresh,
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width, "rc_end_usage:", cfg->rc_end_usage,
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width, "rc_twopass_stats_in:", cfg->rc_twopass_stats_in.buf, cfg->rc_twopass_stats_in.sz,
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width, "rc_target_bitrate:", cfg->rc_target_bitrate);
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av_log(avctx, level, "quantizer settings\n"
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" %*s%u\n %*s%u\n",
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width, "rc_min_quantizer:", cfg->rc_min_quantizer,
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width, "rc_max_quantizer:", cfg->rc_max_quantizer);
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av_log(avctx, level, "bitrate tolerance\n"
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" %*s%u\n %*s%u\n",
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width, "rc_undershoot_pct:", cfg->rc_undershoot_pct,
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width, "rc_overshoot_pct:", cfg->rc_overshoot_pct);
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av_log(avctx, level, "decoder buffer model\n"
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" %*s%u\n %*s%u\n %*s%u\n",
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width, "rc_buf_sz:", cfg->rc_buf_sz,
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width, "rc_buf_initial_sz:", cfg->rc_buf_initial_sz,
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width, "rc_buf_optimal_sz:", cfg->rc_buf_optimal_sz);
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av_log(avctx, level, "2 pass rate control settings\n"
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" %*s%u\n %*s%u\n %*s%u\n",
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width, "rc_2pass_vbr_bias_pct:", cfg->rc_2pass_vbr_bias_pct,
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width, "rc_2pass_vbr_minsection_pct:", cfg->rc_2pass_vbr_minsection_pct,
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width, "rc_2pass_vbr_maxsection_pct:", cfg->rc_2pass_vbr_maxsection_pct);
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av_log(avctx, level, "keyframing settings\n"
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" %*s%d\n %*s%u\n %*s%u\n",
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width, "kf_mode:", cfg->kf_mode,
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width, "kf_min_dist:", cfg->kf_min_dist,
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width, "kf_max_dist:", cfg->kf_max_dist);
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av_log(avctx, level, "\n");
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}
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static void coded_frame_add(void *list, struct FrameListData *cx_frame)
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{
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struct FrameListData **p = list;
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while (*p != NULL)
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p = &(*p)->next;
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*p = cx_frame;
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cx_frame->next = NULL;
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}
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static av_cold void free_coded_frame(struct FrameListData *cx_frame)
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{
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av_freep(&cx_frame->buf);
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av_freep(&cx_frame);
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}
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static av_cold void free_frame_list(struct FrameListData *list)
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{
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struct FrameListData *p = list;
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while (p) {
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list = list->next;
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free_coded_frame(p);
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p = list;
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}
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}
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static av_cold int codecctl_int(AVCodecContext *avctx,
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enum vp8e_enc_control_id id, int val)
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{
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VP8Context *ctx = avctx->priv_data;
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char buf[80];
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int width = -30;
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int res;
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snprintf(buf, sizeof(buf), "%s:", ctlidstr[id]);
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av_log(avctx, AV_LOG_DEBUG, " %*s%d\n", width, buf, val);
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res = vpx_codec_control(&ctx->encoder, id, val);
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if (res != VPX_CODEC_OK) {
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snprintf(buf, sizeof(buf), "Failed to set %s codec control",
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ctlidstr[id]);
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log_encoder_error(avctx, buf);
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}
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return res == VPX_CODEC_OK ? 0 : AVERROR(EINVAL);
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}
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static av_cold int vp8_free(AVCodecContext *avctx)
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{
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VP8Context *ctx = avctx->priv_data;
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vpx_codec_destroy(&ctx->encoder);
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av_freep(&ctx->twopass_stats.buf);
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av_freep(&avctx->coded_frame);
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av_freep(&avctx->stats_out);
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free_frame_list(ctx->coded_frame_list);
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return 0;
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}
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static av_cold int vp8_init(AVCodecContext *avctx)
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{
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VP8Context *ctx = avctx->priv_data;
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const struct vpx_codec_iface *iface = &vpx_codec_vp8_cx_algo;
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int cpuused = 3;
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struct vpx_codec_enc_cfg enccfg;
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int res;
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av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
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av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
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if ((res = vpx_codec_enc_config_default(iface, &enccfg, 0)) != VPX_CODEC_OK) {
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av_log(avctx, AV_LOG_ERROR, "Failed to get config: %s\n",
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vpx_codec_err_to_string(res));
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return AVERROR(EINVAL);
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}
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dump_enc_cfg(avctx, &enccfg);
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enccfg.g_w = avctx->width;
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enccfg.g_h = avctx->height;
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enccfg.g_timebase.num = avctx->time_base.num;
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enccfg.g_timebase.den = avctx->time_base.den;
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enccfg.g_threads = avctx->thread_count;
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if (avctx->flags & CODEC_FLAG_PASS1)
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enccfg.g_pass = VPX_RC_FIRST_PASS;
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else if (avctx->flags & CODEC_FLAG_PASS2)
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enccfg.g_pass = VPX_RC_LAST_PASS;
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else
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enccfg.g_pass = VPX_RC_ONE_PASS;
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if (avctx->rc_min_rate == avctx->rc_max_rate &&
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avctx->rc_min_rate == avctx->bit_rate)
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enccfg.rc_end_usage = VPX_CBR;
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enccfg.rc_target_bitrate = av_rescale_rnd(avctx->bit_rate, 1, 1000,
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AV_ROUND_NEAR_INF);
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//convert [1,51] -> [0,63]
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enccfg.rc_min_quantizer = ((avctx->qmin * 5 + 1) >> 2) - 1;
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enccfg.rc_max_quantizer = ((avctx->qmax * 5 + 1) >> 2) - 1;
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if (avctx->keyint_min == avctx->gop_size)
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enccfg.kf_mode = VPX_KF_FIXED;
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//_enc_init() will balk if kf_min_dist is set in this case
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if (enccfg.kf_mode != VPX_KF_AUTO)
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enccfg.kf_min_dist = avctx->keyint_min;
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enccfg.kf_max_dist = avctx->gop_size;
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if (enccfg.g_pass == VPX_RC_FIRST_PASS)
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enccfg.g_lag_in_frames = 0;
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else if (enccfg.g_pass == VPX_RC_LAST_PASS) {
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int decode_size;
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if (!avctx->stats_in) {
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av_log(avctx, AV_LOG_ERROR, "No stats file for second pass\n");
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return AVERROR_INVALIDDATA;
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}
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ctx->twopass_stats.sz = strlen(avctx->stats_in) * 3 / 4;
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ctx->twopass_stats.buf = av_malloc(ctx->twopass_stats.sz);
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if (!ctx->twopass_stats.buf) {
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av_log(avctx, AV_LOG_ERROR,
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"Stat buffer alloc (%zu bytes) failed\n",
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ctx->twopass_stats.sz);
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return AVERROR(ENOMEM);
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}
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decode_size = av_base64_decode(ctx->twopass_stats.buf, avctx->stats_in,
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ctx->twopass_stats.sz);
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if (decode_size < 0) {
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av_log(avctx, AV_LOG_ERROR, "Stat buffer decode failed\n");
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return AVERROR_INVALIDDATA;
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}
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ctx->twopass_stats.sz = decode_size;
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enccfg.rc_twopass_stats_in = ctx->twopass_stats;
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}
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|
|
|
|
|
|
|
ctx->deadline = VPX_DL_GOOD_QUALITY;
|
|
|
|
|
|
|
|
|
|
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");
|
|
|
|
|
codecctl_int(avctx, VP8E_SET_CPUUSED, cpuused);
|
|
|
|
|
codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
|
|
|
|
|
|
|
|
|
|
//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 = FF_I_TYPE;
|
|
|
|
|
else
|
|
|
|
|
coded_frame->pict_type = FF_P_TYPE;
|
|
|
|
|
} 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);
|
|
|
|
|
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(stats->buf,
|
|
|
|
|
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 = ((ctx->twopass_stats.sz + 2) / 3) * 4 + 1;
|
|
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
AVCodec libvpx_encoder = {
|
|
|
|
|
"libvpx",
|
|
|
|
|
AVMEDIA_TYPE_VIDEO,
|
|
|
|
|
CODEC_ID_VP8,
|
|
|
|
|
sizeof(VP8Context),
|
|
|
|
|
vp8_init,
|
|
|
|
|
vp8_encode,
|
|
|
|
|
vp8_free,
|
|
|
|
|
NULL,
|
|
|
|
|
CODEC_CAP_DELAY,
|
|
|
|
|
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
|
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
|
|
|
|
|
};
|
James Zern