mirror of
https://github.com/FFmpeg/FFmpeg.git
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b945fed629
Explicitly identify decoder/encoder wrappers with a common name. This
saves API users from guessing by the name suffix. For example, they
don't have to guess that "h264_qsv" is the h264 QSV implementation, and
instead they can just check the AVCodec .codec and .wrapper_name fields.
Explicitly mark AVCodec entries that are hardware decoders or most
likely hardware decoders with new AV_CODEC_CAPs. The purpose is allowing
API users listing hardware decoders in a more generic way. The proposed
AVCodecHWConfig does not provide this information fully, because it's
concerned with decoder configuration, not information about the fact
whether the hardware is used or not.
AV_CODEC_CAP_HYBRID exists specifically for QSV, which can have software
implementations in case the hardware is not capable.
Based on a patch by Philip Langdale <philipl@overt.org>.
Merges Libav commit 47687a2f8a.
315 lines
11 KiB
C
315 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 | AV_CODEC_CAP_HARDWARE,
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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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.wrapper_name = "vaapi",
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};
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