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577 lines
19 KiB
577 lines
19 KiB
/* |
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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, "semaphore unresponsive" }, |
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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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svt_av1_enc_deinit_handle(svt_enc->svt_handle); |
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svt_enc->svt_handle = NULL; |
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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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svt_av1_enc_deinit_handle(svt_enc->svt_handle); |
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svt_enc->svt_handle = NULL; |
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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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svt_av1_enc_deinit_handle(svt_enc->svt_handle); |
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svt_enc->svt_handle = NULL; |
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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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|
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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) }, |
|
{ LEVEL("2.2", 22) }, |
|
{ LEVEL("2.3", 23) }, |
|
{ LEVEL("3.0", 30) }, |
|
{ LEVEL("3.1", 31) }, |
|
{ LEVEL("3.2", 32) }, |
|
{ LEVEL("3.3", 33) }, |
|
{ LEVEL("4.0", 40) }, |
|
{ LEVEL("4.1", 41) }, |
|
{ LEVEL("4.2", 42) }, |
|
{ LEVEL("4.3", 43) }, |
|
{ LEVEL("5.0", 50) }, |
|
{ LEVEL("5.1", 51) }, |
|
{ LEVEL("5.2", 52) }, |
|
{ LEVEL("5.3", 53) }, |
|
{ LEVEL("6.0", 60) }, |
|
{ LEVEL("6.1", 61) }, |
|
{ LEVEL("6.2", 62) }, |
|
{ LEVEL("6.3", 63) }, |
|
{ LEVEL("7.0", 70) }, |
|
{ LEVEL("7.1", 71) }, |
|
{ LEVEL("7.2", 72) }, |
|
{ LEVEL("7.3", 73) }, |
|
#undef LEVEL |
|
|
|
{ "rc", "Bit rate control mode", OFFSET(rc_mode), |
|
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, VE , "rc"}, |
|
{ "cqp", "Constant quantizer", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "rc" }, |
|
{ "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" }, |
|
{ "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" }, |
|
|
|
{ "qp", "Quantizer to use with cqp rate control mode", OFFSET(qp), |
|
AV_OPT_TYPE_INT, { .i64 = 50 }, 0, 63, VE }, |
|
|
|
{ "sc_detection", "Scene change detection", OFFSET(scd), |
|
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, |
|
|
|
{ "tile_columns", "Log2 of number of tile columns to use", OFFSET(tile_columns), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, VE}, |
|
{ "tile_rows", "Log2 of number of tile rows to use", OFFSET(tile_rows), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 6, VE}, |
|
|
|
{NULL}, |
|
}; |
|
|
|
static const AVClass class = { |
|
.class_name = "libsvtav1", |
|
.item_name = av_default_item_name, |
|
.option = options, |
|
.version = LIBAVUTIL_VERSION_INT, |
|
}; |
|
|
|
static const AVCodecDefault eb_enc_defaults[] = { |
|
{ "b", "7M" }, |
|
{ "g", "-1" }, |
|
{ "qmin", "0" }, |
|
{ "qmax", "63" }, |
|
{ NULL }, |
|
}; |
|
|
|
AVCodec ff_libsvtav1_encoder = { |
|
.name = "libsvtav1", |
|
.long_name = NULL_IF_CONFIG_SMALL("SVT-AV1(Scalable Video Technology for AV1) encoder"), |
|
.priv_data_size = sizeof(SvtContext), |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.id = AV_CODEC_ID_AV1, |
|
.init = eb_enc_init, |
|
.receive_packet = eb_receive_packet, |
|
.close = eb_enc_close, |
|
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS, |
|
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, |
|
AV_PIX_FMT_YUV420P10, |
|
AV_PIX_FMT_NONE }, |
|
.priv_class = &class, |
|
.defaults = eb_enc_defaults, |
|
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP, |
|
.wrapper_name = "libsvtav1", |
|
};
|
|
|