mirror of https://git.ffmpeg.org/ffmpeg.git
573 lines
19 KiB
C
573 lines
19 KiB
C
/*
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* Scalable Video Technology for AV1 encoder library plugin
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*
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* Copyright (c) 2018 Intel Corporation
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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 this program; 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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#include <stdint.h>
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#include <EbSvtAv1ErrorCodes.h>
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#include <EbSvtAv1Enc.h>
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#include "libavutil/common.h"
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#include "libavutil/frame.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/avassert.h"
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#include "internal.h"
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#include "encode.h"
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#include "packet_internal.h"
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#include "avcodec.h"
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#include "profiles.h"
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typedef enum eos_status {
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EOS_NOT_REACHED = 0,
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EOS_SENT,
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EOS_RECEIVED
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}EOS_STATUS;
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typedef struct SvtContext {
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const AVClass *class;
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EbSvtAv1EncConfiguration enc_params;
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EbComponentType *svt_handle;
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EbBufferHeaderType *in_buf;
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int raw_size;
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int max_tu_size;
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AVFrame *frame;
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AVBufferPool *pool;
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EOS_STATUS eos_flag;
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// User options.
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int hierarchical_level;
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int la_depth;
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int enc_mode;
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int rc_mode;
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int scd;
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int qp;
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int tier;
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int tile_columns;
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int tile_rows;
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} SvtContext;
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static const struct {
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EbErrorType eb_err;
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int av_err;
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const char *desc;
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} svt_errors[] = {
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{ EB_ErrorNone, 0, "success" },
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{ EB_ErrorInsufficientResources, AVERROR(ENOMEM), "insufficient resources" },
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{ EB_ErrorUndefined, AVERROR(EINVAL), "undefined error" },
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{ EB_ErrorInvalidComponent, AVERROR(EINVAL), "invalid component" },
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{ EB_ErrorBadParameter, AVERROR(EINVAL), "bad parameter" },
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{ EB_ErrorDestroyThreadFailed, AVERROR_EXTERNAL, "failed to destroy thread" },
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{ EB_ErrorSemaphoreUnresponsive, AVERROR_EXTERNAL, "semaphore unresponsive" },
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{ EB_ErrorDestroySemaphoreFailed, AVERROR_EXTERNAL, "failed to destroy semaphore"},
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{ EB_ErrorCreateMutexFailed, AVERROR_EXTERNAL, "failed to create mutex" },
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{ EB_ErrorMutexUnresponsive, AVERROR_EXTERNAL, "mutex unresponsive" },
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{ EB_ErrorDestroyMutexFailed, AVERROR_EXTERNAL, "failed to destroy mutex" },
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{ EB_NoErrorEmptyQueue, AVERROR(EAGAIN), "empty queue" },
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};
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static int svt_map_error(EbErrorType eb_err, const char **desc)
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{
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int i;
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av_assert0(desc);
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for (i = 0; i < FF_ARRAY_ELEMS(svt_errors); i++) {
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if (svt_errors[i].eb_err == eb_err) {
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*desc = svt_errors[i].desc;
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return svt_errors[i].av_err;
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}
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}
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*desc = "unknown error";
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return AVERROR_UNKNOWN;
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}
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static int svt_print_error(void *log_ctx, EbErrorType err,
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const char *error_string)
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{
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const char *desc;
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int ret = svt_map_error(err, &desc);
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av_log(log_ctx, AV_LOG_ERROR, "%s: %s (0x%x)\n", error_string, desc, err);
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return ret;
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}
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static int alloc_buffer(EbSvtAv1EncConfiguration *config, SvtContext *svt_enc)
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{
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const int pack_mode_10bit =
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(config->encoder_bit_depth > 8) && (config->compressed_ten_bit_format == 0) ? 1 : 0;
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const size_t luma_size_8bit =
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config->source_width * config->source_height * (1 << pack_mode_10bit);
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const size_t luma_size_10bit =
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(config->encoder_bit_depth > 8 && pack_mode_10bit == 0) ? luma_size_8bit : 0;
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EbSvtIOFormat *in_data;
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svt_enc->raw_size = (luma_size_8bit + luma_size_10bit) * 3 / 2;
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// allocate buffer for in and out
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svt_enc->in_buf = av_mallocz(sizeof(*svt_enc->in_buf));
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if (!svt_enc->in_buf)
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return AVERROR(ENOMEM);
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svt_enc->in_buf->p_buffer = av_mallocz(sizeof(*in_data));
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if (!svt_enc->in_buf->p_buffer)
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return AVERROR(ENOMEM);
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svt_enc->in_buf->size = sizeof(*svt_enc->in_buf);
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return 0;
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}
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static int config_enc_params(EbSvtAv1EncConfiguration *param,
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AVCodecContext *avctx)
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{
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SvtContext *svt_enc = avctx->priv_data;
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const AVPixFmtDescriptor *desc;
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param->source_width = avctx->width;
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param->source_height = avctx->height;
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desc = av_pix_fmt_desc_get(avctx->pix_fmt);
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param->encoder_bit_depth = desc->comp[0].depth;
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if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1)
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param->encoder_color_format = EB_YUV420;
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else if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 0)
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param->encoder_color_format = EB_YUV422;
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else if (!desc->log2_chroma_w && !desc->log2_chroma_h)
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param->encoder_color_format = EB_YUV444;
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else {
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av_log(avctx, AV_LOG_ERROR , "Unsupported pixel format\n");
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return AVERROR(EINVAL);
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}
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if (avctx->profile != FF_PROFILE_UNKNOWN)
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param->profile = avctx->profile;
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if (avctx->level != FF_LEVEL_UNKNOWN)
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param->level = avctx->level;
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if ((param->encoder_color_format == EB_YUV422 || param->encoder_bit_depth > 10)
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&& param->profile != FF_PROFILE_AV1_PROFESSIONAL ) {
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av_log(avctx, AV_LOG_WARNING, "Forcing Professional profile\n");
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param->profile = FF_PROFILE_AV1_PROFESSIONAL;
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} else if (param->encoder_color_format == EB_YUV444 && param->profile != FF_PROFILE_AV1_HIGH) {
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av_log(avctx, AV_LOG_WARNING, "Forcing High profile\n");
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param->profile = FF_PROFILE_AV1_HIGH;
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}
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// Update param from options
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param->hierarchical_levels = svt_enc->hierarchical_level;
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param->enc_mode = svt_enc->enc_mode;
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param->tier = svt_enc->tier;
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param->rate_control_mode = svt_enc->rc_mode;
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param->scene_change_detection = svt_enc->scd;
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param->qp = svt_enc->qp;
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param->target_bit_rate = avctx->bit_rate;
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if (avctx->gop_size > 0)
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param->intra_period_length = avctx->gop_size - 1;
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if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
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param->frame_rate_numerator = avctx->framerate.num;
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param->frame_rate_denominator = avctx->framerate.den;
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} else {
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param->frame_rate_numerator = avctx->time_base.den;
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param->frame_rate_denominator = avctx->time_base.num * avctx->ticks_per_frame;
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}
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if (param->rate_control_mode) {
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param->max_qp_allowed = avctx->qmax;
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param->min_qp_allowed = avctx->qmin;
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}
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param->intra_refresh_type = 2; /* Real keyframes only */
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if (svt_enc->la_depth >= 0)
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param->look_ahead_distance = svt_enc->la_depth;
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param->tile_columns = svt_enc->tile_columns;
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param->tile_rows = svt_enc->tile_rows;
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return 0;
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}
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static int read_in_data(EbSvtAv1EncConfiguration *param, const AVFrame *frame,
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EbBufferHeaderType *header_ptr)
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{
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EbSvtIOFormat *in_data = (EbSvtIOFormat *)header_ptr->p_buffer;
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ptrdiff_t linesizes[4];
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size_t sizes[4];
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int bytes_shift = param->encoder_bit_depth > 8 ? 1 : 0;
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int ret, frame_size;
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for (int i = 0; i < 4; i++)
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linesizes[i] = frame->linesize[i];
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ret = av_image_fill_plane_sizes(sizes, frame->format, frame->height,
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linesizes);
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if (ret < 0)
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return ret;
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frame_size = 0;
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for (int i = 0; i < 4; i++) {
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if (sizes[i] > INT_MAX - frame_size)
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return AVERROR(EINVAL);
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frame_size += sizes[i];
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}
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in_data->luma = frame->data[0];
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in_data->cb = frame->data[1];
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in_data->cr = frame->data[2];
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in_data->y_stride = AV_CEIL_RSHIFT(frame->linesize[0], bytes_shift);
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in_data->cb_stride = AV_CEIL_RSHIFT(frame->linesize[1], bytes_shift);
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in_data->cr_stride = AV_CEIL_RSHIFT(frame->linesize[2], bytes_shift);
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header_ptr->n_filled_len = frame_size;
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return 0;
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}
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static av_cold int eb_enc_init(AVCodecContext *avctx)
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{
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SvtContext *svt_enc = avctx->priv_data;
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EbErrorType svt_ret;
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int ret;
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svt_enc->eos_flag = EOS_NOT_REACHED;
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svt_ret = svt_av1_enc_init_handle(&svt_enc->svt_handle, svt_enc, &svt_enc->enc_params);
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if (svt_ret != EB_ErrorNone) {
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return svt_print_error(avctx, svt_ret, "Error initializing encoder handle");
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}
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ret = config_enc_params(&svt_enc->enc_params, avctx);
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if (ret < 0) {
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av_log(avctx, AV_LOG_ERROR, "Error configuring encoder parameters\n");
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return ret;
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}
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svt_ret = svt_av1_enc_set_parameter(svt_enc->svt_handle, &svt_enc->enc_params);
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if (svt_ret != EB_ErrorNone) {
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return svt_print_error(avctx, svt_ret, "Error setting encoder parameters");
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}
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svt_ret = svt_av1_enc_init(svt_enc->svt_handle);
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if (svt_ret != EB_ErrorNone) {
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return svt_print_error(avctx, svt_ret, "Error initializing encoder");
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}
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if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
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EbBufferHeaderType *headerPtr = NULL;
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svt_ret = svt_av1_enc_stream_header(svt_enc->svt_handle, &headerPtr);
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if (svt_ret != EB_ErrorNone) {
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return svt_print_error(avctx, svt_ret, "Error building stream header");
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}
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avctx->extradata_size = headerPtr->n_filled_len;
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avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!avctx->extradata) {
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av_log(avctx, AV_LOG_ERROR,
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"Cannot allocate AV1 header of size %d.\n", avctx->extradata_size);
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return AVERROR(ENOMEM);
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}
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memcpy(avctx->extradata, headerPtr->p_buffer, avctx->extradata_size);
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svt_ret = svt_av1_enc_stream_header_release(headerPtr);
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if (svt_ret != EB_ErrorNone) {
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return svt_print_error(avctx, svt_ret, "Error freeing stream header");
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}
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}
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svt_enc->frame = av_frame_alloc();
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if (!svt_enc->frame)
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return AVERROR(ENOMEM);
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return alloc_buffer(&svt_enc->enc_params, svt_enc);
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}
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static int eb_send_frame(AVCodecContext *avctx, const AVFrame *frame)
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{
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SvtContext *svt_enc = avctx->priv_data;
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EbBufferHeaderType *headerPtr = svt_enc->in_buf;
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int ret;
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if (!frame) {
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EbBufferHeaderType headerPtrLast;
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if (svt_enc->eos_flag == EOS_SENT)
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return 0;
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headerPtrLast.n_alloc_len = 0;
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headerPtrLast.n_filled_len = 0;
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headerPtrLast.n_tick_count = 0;
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headerPtrLast.p_app_private = NULL;
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headerPtrLast.p_buffer = NULL;
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headerPtrLast.flags = EB_BUFFERFLAG_EOS;
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svt_av1_enc_send_picture(svt_enc->svt_handle, &headerPtrLast);
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svt_enc->eos_flag = EOS_SENT;
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return 0;
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}
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ret = read_in_data(&svt_enc->enc_params, frame, headerPtr);
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if (ret < 0)
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return ret;
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headerPtr->flags = 0;
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headerPtr->p_app_private = NULL;
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headerPtr->pts = frame->pts;
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svt_av1_enc_send_picture(svt_enc->svt_handle, headerPtr);
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return 0;
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}
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static AVBufferRef *get_output_ref(AVCodecContext *avctx, SvtContext *svt_enc, int filled_len)
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{
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if (filled_len > svt_enc->max_tu_size) {
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const int max_frames = 8;
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int max_tu_size;
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if (filled_len > svt_enc->raw_size * max_frames) {
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av_log(avctx, AV_LOG_ERROR, "TU size > %d raw frame size.\n", max_frames);
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return NULL;
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}
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max_tu_size = 1 << av_ceil_log2(filled_len);
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av_buffer_pool_uninit(&svt_enc->pool);
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svt_enc->pool = av_buffer_pool_init(max_tu_size + AV_INPUT_BUFFER_PADDING_SIZE, NULL);
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if (!svt_enc->pool)
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return NULL;
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svt_enc->max_tu_size = max_tu_size;
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}
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av_assert0(svt_enc->pool);
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return av_buffer_pool_get(svt_enc->pool);
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}
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static int eb_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
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{
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SvtContext *svt_enc = avctx->priv_data;
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EbBufferHeaderType *headerPtr;
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AVFrame *frame = svt_enc->frame;
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EbErrorType svt_ret;
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AVBufferRef *ref;
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int ret = 0, pict_type;
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if (svt_enc->eos_flag == EOS_RECEIVED)
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return AVERROR_EOF;
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ret = ff_encode_get_frame(avctx, frame);
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if (ret < 0 && ret != AVERROR_EOF)
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return ret;
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if (ret == AVERROR_EOF)
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frame = NULL;
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ret = eb_send_frame(avctx, frame);
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if (ret < 0)
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return ret;
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av_frame_unref(svt_enc->frame);
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svt_ret = svt_av1_enc_get_packet(svt_enc->svt_handle, &headerPtr, svt_enc->eos_flag);
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if (svt_ret == EB_NoErrorEmptyQueue)
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return AVERROR(EAGAIN);
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ref = get_output_ref(avctx, svt_enc, headerPtr->n_filled_len);
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if (!ref) {
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av_log(avctx, AV_LOG_ERROR, "Failed to allocate output packet.\n");
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svt_av1_enc_release_out_buffer(&headerPtr);
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return AVERROR(ENOMEM);
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}
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pkt->buf = ref;
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pkt->data = ref->data;
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memcpy(pkt->data, headerPtr->p_buffer, headerPtr->n_filled_len);
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memset(pkt->data + headerPtr->n_filled_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
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pkt->size = headerPtr->n_filled_len;
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pkt->pts = headerPtr->pts;
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pkt->dts = headerPtr->dts;
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switch (headerPtr->pic_type) {
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case EB_AV1_KEY_PICTURE:
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pkt->flags |= AV_PKT_FLAG_KEY;
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// fall-through
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case EB_AV1_INTRA_ONLY_PICTURE:
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pict_type = AV_PICTURE_TYPE_I;
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break;
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case EB_AV1_INVALID_PICTURE:
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pict_type = AV_PICTURE_TYPE_NONE;
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break;
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default:
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pict_type = AV_PICTURE_TYPE_P;
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break;
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}
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if (headerPtr->pic_type == EB_AV1_NON_REF_PICTURE)
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pkt->flags |= AV_PKT_FLAG_DISPOSABLE;
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if (headerPtr->flags & EB_BUFFERFLAG_EOS)
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svt_enc->eos_flag = EOS_RECEIVED;
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ff_side_data_set_encoder_stats(pkt, headerPtr->qp * FF_QP2LAMBDA, NULL, 0, pict_type);
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svt_av1_enc_release_out_buffer(&headerPtr);
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return 0;
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}
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static av_cold int eb_enc_close(AVCodecContext *avctx)
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{
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SvtContext *svt_enc = avctx->priv_data;
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if (svt_enc->svt_handle) {
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svt_av1_enc_deinit(svt_enc->svt_handle);
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svt_av1_enc_deinit_handle(svt_enc->svt_handle);
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}
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if (svt_enc->in_buf) {
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av_free(svt_enc->in_buf->p_buffer);
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av_freep(&svt_enc->in_buf);
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}
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av_buffer_pool_uninit(&svt_enc->pool);
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av_frame_free(&svt_enc->frame);
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return 0;
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}
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#define OFFSET(x) offsetof(SvtContext, x)
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#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption options[] = {
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{ "hielevel", "Hierarchical prediction levels setting", OFFSET(hierarchical_level),
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AV_OPT_TYPE_INT, { .i64 = 4 }, 3, 4, VE , "hielevel"},
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{ "3level", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3 }, INT_MIN, INT_MAX, VE, "hielevel" },
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{ "4level", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 4 }, INT_MIN, INT_MAX, VE, "hielevel" },
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{ "la_depth", "Look ahead distance [0, 120]", OFFSET(la_depth),
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AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 120, VE },
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{ "preset", "Encoding preset [0, 8]",
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OFFSET(enc_mode), AV_OPT_TYPE_INT, { .i64 = MAX_ENC_PRESET }, 0, MAX_ENC_PRESET, VE },
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{ "tier", "Set operating point tier", OFFSET(tier),
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AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, "tier" },
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{ "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "tier" },
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{ "high", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, VE, "tier" },
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FF_AV1_PROFILE_OPTS
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#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
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{ .i64 = value }, 0, 0, VE, "avctx.level"
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{ LEVEL("2.0", 20) },
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{ LEVEL("2.1", 21) },
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{ LEVEL("2.2", 22) },
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{ LEVEL("2.3", 23) },
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{ LEVEL("3.0", 30) },
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{ LEVEL("3.1", 31) },
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{ LEVEL("3.2", 32) },
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{ LEVEL("3.3", 33) },
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{ LEVEL("4.0", 40) },
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{ LEVEL("4.1", 41) },
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{ LEVEL("4.2", 42) },
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{ LEVEL("4.3", 43) },
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{ LEVEL("5.0", 50) },
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{ LEVEL("5.1", 51) },
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{ LEVEL("5.2", 52) },
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{ LEVEL("5.3", 53) },
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{ LEVEL("6.0", 60) },
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{ LEVEL("6.1", 61) },
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{ LEVEL("6.2", 62) },
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{ LEVEL("6.3", 63) },
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{ LEVEL("7.0", 70) },
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{ LEVEL("7.1", 71) },
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{ LEVEL("7.2", 72) },
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{ LEVEL("7.3", 73) },
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#undef LEVEL
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{ "rc", "Bit rate control mode", OFFSET(rc_mode),
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AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, VE , "rc"},
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{ "cqp", "Constant quantizer", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "rc" },
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{ "vbr", "Variable Bit Rate, use a target bitrate for the entire stream", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "rc" },
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{ "cvbr", "Constrained Variable Bit Rate, use a target bitrate for each GOP", 0, AV_OPT_TYPE_CONST,{ .i64 = 2 }, INT_MIN, INT_MAX, VE, "rc" },
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{ "qp", "Quantizer to use with cqp rate control mode", OFFSET(qp),
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AV_OPT_TYPE_INT, { .i64 = 50 }, 0, 63, VE },
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{ "sc_detection", "Scene change detection", OFFSET(scd),
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AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
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{ "tile_columns", "Log2 of number of tile columns to use", OFFSET(tile_columns), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, VE},
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{ "tile_rows", "Log2 of number of tile rows to use", OFFSET(tile_rows), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 6, VE},
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{NULL},
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};
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static const AVClass class = {
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.class_name = "libsvtav1",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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static const AVCodecDefault eb_enc_defaults[] = {
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{ "b", "7M" },
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{ "g", "-1" },
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{ "qmin", "0" },
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{ "qmax", "63" },
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{ NULL },
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};
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AVCodec ff_libsvtav1_encoder = {
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.name = "libsvtav1",
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.long_name = NULL_IF_CONFIG_SMALL("SVT-AV1(Scalable Video Technology for AV1) encoder"),
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.priv_data_size = sizeof(SvtContext),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_AV1,
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.init = eb_enc_init,
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.receive_packet = eb_receive_packet,
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.close = eb_enc_close,
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.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_OTHER_THREADS,
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.caps_internal = FF_CODEC_CAP_AUTO_THREADS,
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.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUV420P10,
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AV_PIX_FMT_NONE },
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.priv_class = &class,
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.defaults = eb_enc_defaults,
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.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
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.wrapper_name = "libsvtav1",
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};
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