mirror of
https://github.com/FFmpeg/FFmpeg.git
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625 lines
26 KiB
C
625 lines
26 KiB
C
/*
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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 "internal.h"
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#include "libavutil/avassert.h"
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#include "libavutil/base64.h"
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#include "libavutil/common.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/opt.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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AVClass *class;
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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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int deadline; //i.e., RT/GOOD/BEST
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struct FrameListData *coded_frame_list;
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int cpu_used;
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/**
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* VP8 specific flags, see VP8F_* below.
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*/
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int flags;
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#define VP8F_ERROR_RESILIENT 0x00000001 ///< Enable measures appropriate for streaming over lossy links
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#define VP8F_AUTO_ALT_REF 0x00000002 ///< Enable automatic alternate reference frame generation
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int auto_alt_ref;
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int arnr_max_frames;
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int arnr_strength;
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int arnr_type;
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int lag_in_frames;
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int error_resilient;
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int crf;
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int max_intra_rate;
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} VP8Context;
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/** String mappings for enum vp8e_enc_control_id */
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static const char *const 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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[VP8E_SET_CQ_LEVEL] = "VP8E_SET_CQ_LEVEL",
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[VP8E_SET_MAX_INTRA_BITRATE_PCT] = "VP8E_SET_MAX_INTRA_BITRATE_PCT",
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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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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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if(!avctx->bit_rate)
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if(avctx->rc_max_rate || avctx->rc_buffer_size || avctx->rc_initial_buffer_occupancy) {
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av_log( avctx, AV_LOG_ERROR, "Rate control parameters set without a bitrate\n");
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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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enccfg.g_lag_in_frames= ctx->lag_in_frames;
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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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else if (ctx->crf)
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enccfg.rc_end_usage = VPX_CQ;
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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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if (avctx->qmin > 0)
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enccfg.rc_min_quantizer = avctx->qmin;
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if (avctx->qmax > 0)
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enccfg.rc_max_quantizer = avctx->qmax;
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enccfg.rc_dropframe_thresh = avctx->frame_skip_threshold;
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//0-100 (0 => CBR, 100 => VBR)
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enccfg.rc_2pass_vbr_bias_pct = round(avctx->qcompress * 100);
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if (avctx->bit_rate)
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enccfg.rc_2pass_vbr_minsection_pct =
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avctx->rc_min_rate * 100LL / avctx->bit_rate;
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if (avctx->rc_max_rate)
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enccfg.rc_2pass_vbr_maxsection_pct =
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avctx->rc_max_rate * 100LL / avctx->bit_rate;
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if (avctx->rc_buffer_size)
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enccfg.rc_buf_sz =
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avctx->rc_buffer_size * 1000LL / avctx->bit_rate;
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if (avctx->rc_initial_buffer_occupancy)
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enccfg.rc_buf_initial_sz =
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avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
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enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
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enccfg.rc_undershoot_pct = round(avctx->rc_buffer_aggressivity * 100);
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//_enc_init() will balk if kf_min_dist differs from max w/VPX_KF_AUTO
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if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
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enccfg.kf_min_dist = avctx->keyint_min;
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if (avctx->gop_size >= 0)
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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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/* 0-3: For non-zero values the encoder increasingly optimizes for reduced
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complexity playback on low powered devices at the expense of encode
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quality. */
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if (avctx->profile != FF_PROFILE_UNKNOWN)
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enccfg.g_profile = avctx->profile;
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enccfg.g_error_resilient = ctx->error_resilient || ctx->flags & VP8F_ERROR_RESILIENT;
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dump_enc_cfg(avctx, &enccfg);
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/* Construct Encoder Context */
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res = vpx_codec_enc_init(&ctx->encoder, iface, &enccfg, 0);
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if (res != VPX_CODEC_OK) {
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log_encoder_error(avctx, "Failed to initialize encoder");
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return AVERROR(EINVAL);
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}
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//codec control failures are currently treated only as warnings
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av_log(avctx, AV_LOG_DEBUG, "vpx_codec_control\n");
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if (ctx->cpu_used != INT_MIN)
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codecctl_int(avctx, VP8E_SET_CPUUSED, ctx->cpu_used);
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if (ctx->flags & VP8F_AUTO_ALT_REF)
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ctx->auto_alt_ref = 1;
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if (ctx->auto_alt_ref >= 0)
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codecctl_int(avctx, VP8E_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
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if (ctx->arnr_max_frames >= 0)
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codecctl_int(avctx, VP8E_SET_ARNR_MAXFRAMES, ctx->arnr_max_frames);
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if (ctx->arnr_strength >= 0)
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codecctl_int(avctx, VP8E_SET_ARNR_STRENGTH, ctx->arnr_strength);
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if (ctx->arnr_type >= 0)
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codecctl_int(avctx, VP8E_SET_ARNR_TYPE, ctx->arnr_type);
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codecctl_int(avctx, VP8E_SET_NOISE_SENSITIVITY, avctx->noise_reduction);
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codecctl_int(avctx, VP8E_SET_TOKEN_PARTITIONS, av_log2(avctx->slices));
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codecctl_int(avctx, VP8E_SET_STATIC_THRESHOLD, avctx->mb_threshold);
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codecctl_int(avctx, VP8E_SET_CQ_LEVEL, ctx->crf);
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if (ctx->max_intra_rate >= 0)
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codecctl_int(avctx, VP8E_SET_MAX_INTRA_BITRATE_PCT, ctx->max_intra_rate);
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av_log(avctx, AV_LOG_DEBUG, "Using deadline: %d\n", ctx->deadline);
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//provide dummy value to initialize wrapper, values will be updated each _encode()
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vpx_img_wrap(&ctx->rawimg, VPX_IMG_FMT_I420, avctx->width, avctx->height, 1,
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(unsigned char*)1);
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avctx->coded_frame = avcodec_alloc_frame();
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if (!avctx->coded_frame) {
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av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
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vp8_free(avctx);
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return AVERROR(ENOMEM);
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}
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return 0;
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}
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static inline void cx_pktcpy(struct FrameListData *dst,
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const struct vpx_codec_cx_pkt *src)
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{
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dst->pts = src->data.frame.pts;
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dst->duration = src->data.frame.duration;
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dst->flags = src->data.frame.flags;
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dst->sz = src->data.frame.sz;
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dst->buf = src->data.frame.buf;
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}
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/**
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* Store coded frame information in format suitable for return from encode2().
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*
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* Write information from @a cx_frame to @a pkt
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* @return packet data size on success
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* @return a negative AVERROR on error
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*/
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static int storeframe(AVCodecContext *avctx, struct FrameListData *cx_frame,
|
|
AVPacket *pkt, AVFrame *coded_frame)
|
|
{
|
|
int ret = ff_alloc_packet2(avctx, pkt, cx_frame->sz);
|
|
if (ret >= 0) {
|
|
memcpy(pkt->data, cx_frame->buf, pkt->size);
|
|
pkt->pts = pkt->dts = cx_frame->pts;
|
|
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;
|
|
pkt->flags |= AV_PKT_FLAG_KEY;
|
|
} else
|
|
coded_frame->pict_type = AV_PICTURE_TYPE_P;
|
|
} else {
|
|
return ret;
|
|
}
|
|
return pkt->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, AVPacket *pkt_out,
|
|
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, pkt_out, coded_frame);
|
|
if (size < 0)
|
|
return size;
|
|
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 */
|
|
av_assert0(!ctx->coded_frame_list);
|
|
cx_pktcpy(&cx_frame, pkt);
|
|
size = storeframe(avctx, &cx_frame, pkt_out, coded_frame);
|
|
if (size < 0)
|
|
return size;
|
|
} 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_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, AVPacket *pkt,
|
|
const AVFrame *frame, int *got_packet)
|
|
{
|
|
VP8Context *ctx = avctx->priv_data;
|
|
struct vpx_image *rawimg = NULL;
|
|
int64_t timestamp = 0;
|
|
long flags = 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;
|
|
flags = frame->pict_type == AV_PICTURE_TYPE_I ? VPX_EFLAG_FORCE_KF : 0;
|
|
}
|
|
|
|
res = vpx_codec_encode(&ctx->encoder, rawimg, timestamp,
|
|
avctx->ticks_per_frame, flags, ctx->deadline);
|
|
if (res != VPX_CODEC_OK) {
|
|
log_encoder_error(avctx, "Error encoding frame");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
coded_size = queue_frames(avctx, pkt, 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);
|
|
}
|
|
|
|
*got_packet = !!coded_size;
|
|
return 0;
|
|
}
|
|
|
|
#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"},
|
|
{ "max-intra-rate", "Maximum I-frame bitrate (pct) 0=unlimited", OFFSET(max_intra_rate), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
|
|
#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},
|
|
{"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},
|
|
{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 = AV_CODEC_ID_VP8,
|
|
.priv_data_size = sizeof(VP8Context),
|
|
.init = vp8_init,
|
|
.encode2 = 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,
|
|
};
|