314 lines
11 KiB
C
314 lines
11 KiB
C
/*
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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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#include <va/va.h>
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#include <va/va_enc_vp9.h>
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#include "libavutil/avassert.h"
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#include "libavutil/common.h"
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#include "libavutil/internal.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixfmt.h"
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#include "avcodec.h"
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#include "internal.h"
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#include "vaapi_encode.h"
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#define VP9_MAX_QUANT 255
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typedef struct VAAPIEncodeVP9Context {
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int q_idx_idr;
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int q_idx_p;
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int q_idx_b;
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// Reference direction for B-like frames:
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// 0 - most recent P/IDR frame is last.
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// 1 - most recent P frame is golden.
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int last_ref_dir;
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} VAAPIEncodeVP9Context;
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typedef struct VAAPIEncodeVP9Options {
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int loop_filter_level;
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int loop_filter_sharpness;
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} VAAPIEncodeVP9Options;
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#define vseq_var(name) vseq->name, name
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#define vseq_field(name) vseq->seq_fields.bits.name, name
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#define vpic_var(name) vpic->name, name
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#define vpic_field(name) vpic->pic_fields.bits.name, name
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static int vaapi_encode_vp9_init_sequence_params(AVCodecContext *avctx)
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{
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VAAPIEncodeContext *ctx = avctx->priv_data;
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VAEncSequenceParameterBufferVP9 *vseq = ctx->codec_sequence_params;
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VAEncPictureParameterBufferVP9 *vpic = ctx->codec_picture_params;
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vseq->max_frame_width = avctx->width;
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vseq->max_frame_height = avctx->height;
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vseq->kf_auto = 0;
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if (!(ctx->va_rc_mode & VA_RC_CQP)) {
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vseq->bits_per_second = avctx->bit_rate;
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vseq->intra_period = avctx->gop_size;
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}
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vpic->frame_width_src = avctx->width;
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vpic->frame_height_src = avctx->height;
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vpic->frame_width_dst = avctx->width;
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vpic->frame_height_dst = avctx->height;
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return 0;
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}
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static int vaapi_encode_vp9_init_picture_params(AVCodecContext *avctx,
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VAAPIEncodePicture *pic)
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{
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VAAPIEncodeContext *ctx = avctx->priv_data;
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VAEncPictureParameterBufferVP9 *vpic = pic->codec_picture_params;
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VAAPIEncodeVP9Context *priv = ctx->priv_data;
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VAAPIEncodeVP9Options *opt = ctx->codec_options;
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int i;
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vpic->reconstructed_frame = pic->recon_surface;
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vpic->coded_buf = pic->output_buffer;
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switch (pic->type) {
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case PICTURE_TYPE_IDR:
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av_assert0(pic->nb_refs == 0);
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vpic->ref_flags.bits.force_kf = 1;
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vpic->refresh_frame_flags = 0x01;
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priv->last_ref_dir = 0;
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break;
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case PICTURE_TYPE_P:
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av_assert0(pic->nb_refs == 1);
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if (avctx->max_b_frames > 0) {
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if (priv->last_ref_dir) {
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vpic->ref_flags.bits.ref_frame_ctrl_l0 = 2;
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vpic->ref_flags.bits.ref_gf_idx = 1;
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vpic->ref_flags.bits.ref_gf_sign_bias = 1;
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vpic->refresh_frame_flags = 0x01;
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} else {
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vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
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vpic->ref_flags.bits.ref_last_idx = 0;
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vpic->ref_flags.bits.ref_last_sign_bias = 1;
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vpic->refresh_frame_flags = 0x02;
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}
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} else {
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vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
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vpic->ref_flags.bits.ref_last_idx = 0;
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vpic->ref_flags.bits.ref_last_sign_bias = 1;
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vpic->refresh_frame_flags = 0x01;
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}
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break;
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case PICTURE_TYPE_B:
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av_assert0(pic->nb_refs == 2);
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if (priv->last_ref_dir) {
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vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
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vpic->ref_flags.bits.ref_frame_ctrl_l1 = 2;
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vpic->ref_flags.bits.ref_last_idx = 0;
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vpic->ref_flags.bits.ref_last_sign_bias = 1;
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vpic->ref_flags.bits.ref_gf_idx = 1;
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vpic->ref_flags.bits.ref_gf_sign_bias = 0;
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} else {
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vpic->ref_flags.bits.ref_frame_ctrl_l0 = 2;
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vpic->ref_flags.bits.ref_frame_ctrl_l1 = 1;
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vpic->ref_flags.bits.ref_last_idx = 0;
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vpic->ref_flags.bits.ref_last_sign_bias = 0;
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vpic->ref_flags.bits.ref_gf_idx = 1;
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vpic->ref_flags.bits.ref_gf_sign_bias = 1;
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}
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vpic->refresh_frame_flags = 0x00;
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break;
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default:
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av_assert0(0 && "invalid picture type");
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}
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for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++)
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vpic->reference_frames[i] = VA_INVALID_SURFACE;
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if (pic->type == PICTURE_TYPE_P) {
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av_assert0(pic->refs[0]);
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vpic->reference_frames[priv->last_ref_dir] =
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pic->refs[0]->recon_surface;
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} else if (pic->type == PICTURE_TYPE_B) {
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av_assert0(pic->refs[0] && pic->refs[1]);
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vpic->reference_frames[!priv->last_ref_dir] =
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pic->refs[0]->recon_surface;
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vpic->reference_frames[priv->last_ref_dir] =
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pic->refs[1]->recon_surface;
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}
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vpic->pic_flags.bits.frame_type = (pic->type != PICTURE_TYPE_IDR);
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vpic->pic_flags.bits.show_frame = pic->display_order <= pic->encode_order;
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if (pic->type == PICTURE_TYPE_IDR)
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vpic->luma_ac_qindex = priv->q_idx_idr;
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else if (pic->type == PICTURE_TYPE_P)
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vpic->luma_ac_qindex = priv->q_idx_p;
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else
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vpic->luma_ac_qindex = priv->q_idx_b;
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vpic->luma_dc_qindex_delta = 0;
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vpic->chroma_ac_qindex_delta = 0;
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vpic->chroma_dc_qindex_delta = 0;
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vpic->filter_level = opt->loop_filter_level;
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vpic->sharpness_level = opt->loop_filter_sharpness;
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if (avctx->max_b_frames > 0 && pic->type == PICTURE_TYPE_P)
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priv->last_ref_dir = !priv->last_ref_dir;
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return 0;
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}
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static av_cold int vaapi_encode_vp9_configure(AVCodecContext *avctx)
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{
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VAAPIEncodeContext *ctx = avctx->priv_data;
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VAAPIEncodeVP9Context *priv = ctx->priv_data;
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priv->q_idx_p = av_clip(avctx->global_quality, 0, VP9_MAX_QUANT);
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if (avctx->i_quant_factor > 0.0)
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priv->q_idx_idr = av_clip((avctx->global_quality *
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avctx->i_quant_factor +
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avctx->i_quant_offset) + 0.5,
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0, VP9_MAX_QUANT);
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else
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priv->q_idx_idr = priv->q_idx_p;
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if (avctx->b_quant_factor > 0.0)
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priv->q_idx_b = av_clip((avctx->global_quality *
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avctx->b_quant_factor +
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avctx->b_quant_offset) + 0.5,
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0, VP9_MAX_QUANT);
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else
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priv->q_idx_b = priv->q_idx_p;
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return 0;
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}
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static const VAAPIEncodeType vaapi_encode_type_vp9 = {
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.configure = &vaapi_encode_vp9_configure,
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.priv_data_size = sizeof(VAAPIEncodeVP9Context),
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.sequence_params_size = sizeof(VAEncSequenceParameterBufferVP9),
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.init_sequence_params = &vaapi_encode_vp9_init_sequence_params,
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.picture_params_size = sizeof(VAEncPictureParameterBufferVP9),
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.init_picture_params = &vaapi_encode_vp9_init_picture_params,
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};
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static av_cold int vaapi_encode_vp9_init(AVCodecContext *avctx)
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{
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VAAPIEncodeContext *ctx = avctx->priv_data;
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ctx->codec = &vaapi_encode_type_vp9;
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switch (avctx->profile) {
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case FF_PROFILE_VP9_0:
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case FF_PROFILE_UNKNOWN:
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ctx->va_profile = VAProfileVP9Profile0;
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ctx->va_rt_format = VA_RT_FORMAT_YUV420;
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break;
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case FF_PROFILE_VP9_1:
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av_log(avctx, AV_LOG_ERROR, "VP9 profile 1 is not "
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"supported.\n");
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return AVERROR_PATCHWELCOME;
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case FF_PROFILE_VP9_2:
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ctx->va_profile = VAProfileVP9Profile2;
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ctx->va_rt_format = VA_RT_FORMAT_YUV420_10BPP;
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break;
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case FF_PROFILE_VP9_3:
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av_log(avctx, AV_LOG_ERROR, "VP9 profile 3 is not "
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"supported.\n");
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return AVERROR_PATCHWELCOME;
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default:
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av_log(avctx, AV_LOG_ERROR, "Unknown VP9 profile %d.\n",
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avctx->profile);
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return AVERROR(EINVAL);
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}
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ctx->va_entrypoint = VAEntrypointEncSlice;
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if (avctx->flags & AV_CODEC_FLAG_QSCALE) {
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ctx->va_rc_mode = VA_RC_CQP;
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} else if (avctx->bit_rate > 0) {
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if (avctx->bit_rate == avctx->rc_max_rate)
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ctx->va_rc_mode = VA_RC_CBR;
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else
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ctx->va_rc_mode = VA_RC_VBR;
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} else {
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ctx->va_rc_mode = VA_RC_CQP;
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}
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// Packed headers are not currently supported.
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ctx->va_packed_headers = 0;
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// Surfaces must be aligned to superblock boundaries.
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ctx->surface_width = FFALIGN(avctx->width, 64);
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ctx->surface_height = FFALIGN(avctx->height, 64);
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return ff_vaapi_encode_init(avctx);
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}
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#define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
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offsetof(VAAPIEncodeVP9Options, x))
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#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
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static const AVOption vaapi_encode_vp9_options[] = {
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{ "loop_filter_level", "Loop filter level",
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OFFSET(loop_filter_level), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, 63, FLAGS },
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{ "loop_filter_sharpness", "Loop filter sharpness",
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OFFSET(loop_filter_sharpness), AV_OPT_TYPE_INT, { .i64 = 4 }, 0, 15, FLAGS },
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{ NULL },
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};
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static const AVCodecDefault vaapi_encode_vp9_defaults[] = {
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{ "profile", "0" },
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{ "b", "0" },
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{ "bf", "0" },
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{ "g", "250" },
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{ "global_quality", "100" },
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{ NULL },
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};
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static const AVClass vaapi_encode_vp9_class = {
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.class_name = "vp9_vaapi",
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.item_name = av_default_item_name,
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.option = vaapi_encode_vp9_options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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AVCodec ff_vp9_vaapi_encoder = {
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.name = "vp9_vaapi",
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.long_name = NULL_IF_CONFIG_SMALL("VP9 (VAAPI)"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_VP9,
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.priv_data_size = (sizeof(VAAPIEncodeContext) +
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sizeof(VAAPIEncodeVP9Options)),
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.init = &vaapi_encode_vp9_init,
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.encode2 = &ff_vaapi_encode2,
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.close = &ff_vaapi_encode_close,
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.priv_class = &vaapi_encode_vp9_class,
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.capabilities = AV_CODEC_CAP_DELAY,
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.defaults = vaapi_encode_vp9_defaults,
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.pix_fmts = (const enum AVPixelFormat[]) {
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AV_PIX_FMT_VAAPI,
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AV_PIX_FMT_NONE,
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},
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};
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