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/*
* VP9 HW decode acceleration through NVDEC
*
* Copyright (c) 2016 Timo Rothenpieler
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "nvdec.h"
#include "decode.h"
#include "internal.h"
#include "vp9shared.h"
static int nvdec_vp9_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
{
VP9SharedContext *h = avctx->priv_data;
const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
NVDECContext *ctx = avctx->internal->hwaccel_priv_data;
CUVIDPICPARAMS *pp = &ctx->pic_params;
CUVIDVP9PICPARAMS *ppc = &pp->CodecSpecific.vp9;
FrameDecodeData *fdd;
NVDECFrame *cf;
AVFrame *cur_frame = h->frames[CUR_FRAME].tf.f;
int ret, i;
ret = ff_nvdec_start_frame(avctx, cur_frame);
if (ret < 0)
return ret;
fdd = (FrameDecodeData*)cur_frame->private_ref->data;
cf = (NVDECFrame*)fdd->hwaccel_priv;
*pp = (CUVIDPICPARAMS) {
.PicWidthInMbs = (cur_frame->width + 15) / 16,
.FrameHeightInMbs = (cur_frame->height + 15) / 16,
.CurrPicIdx = cf->idx,
.CodecSpecific.vp9 = {
.width = cur_frame->width,
.height = cur_frame->height,
.LastRefIdx = ff_nvdec_get_ref_idx(h->refs[h->h.refidx[0]].f),
.GoldenRefIdx = ff_nvdec_get_ref_idx(h->refs[h->h.refidx[1]].f),
.AltRefIdx = ff_nvdec_get_ref_idx(h->refs[h->h.refidx[2]].f),
.profile = h->h.profile,
.frameContextIdx = h->h.framectxid,
.frameType = !h->h.keyframe,
.showFrame = !h->h.invisible,
.errorResilient = h->h.errorres,
.frameParallelDecoding = h->h.parallelmode,
.subSamplingX = pixdesc->log2_chroma_w,
.subSamplingY = pixdesc->log2_chroma_h,
.intraOnly = h->h.intraonly,
.allow_high_precision_mv = h->h.keyframe ? 0 : h->h.highprecisionmvs,
.refreshEntropyProbs = h->h.refreshctx,
.bitDepthMinus8Luma = pixdesc->comp[0].depth - 8,
.bitDepthMinus8Chroma = pixdesc->comp[1].depth - 8,
.loopFilterLevel = h->h.filter.level,
.loopFilterSharpness = h->h.filter.sharpness,
.modeRefLfEnabled = h->h.lf_delta.enabled,
.log2_tile_columns = h->h.tiling.log2_tile_cols,
.log2_tile_rows = h->h.tiling.log2_tile_rows,
.segmentEnabled = h->h.segmentation.enabled,
.segmentMapUpdate = h->h.segmentation.update_map,
.segmentMapTemporalUpdate = h->h.segmentation.temporal,
.segmentFeatureMode = h->h.segmentation.absolute_vals,
.qpYAc = h->h.yac_qi,
.qpYDc = h->h.ydc_qdelta,
.qpChDc = h->h.uvdc_qdelta,
.qpChAc = h->h.uvac_qdelta,
.resetFrameContext = h->h.resetctx,
.mcomp_filter_type = h->h.filtermode ^ (h->h.filtermode <= 1),
.frameTagSize = h->h.uncompressed_header_size,
.offsetToDctParts = h->h.compressed_header_size,
.refFrameSignBias[0] = 0,
}
};
for (i = 0; i < 2; i++)
ppc->mbModeLfDelta[i] = h->h.lf_delta.mode[i];
for (i = 0; i < 4; i++)
ppc->mbRefLfDelta[i] = h->h.lf_delta.ref[i];
for (i = 0; i < 7; i++)
ppc->mb_segment_tree_probs[i] = h->h.segmentation.prob[i];
for (i = 0; i < 3; i++) {
ppc->activeRefIdx[i] = h->h.refidx[i];
ppc->segment_pred_probs[i] = h->h.segmentation.pred_prob[i];
ppc->refFrameSignBias[i + 1] = h->h.signbias[i];
}
for (i = 0; i < 8; i++) {
ppc->segmentFeatureEnable[i][0] = h->h.segmentation.feat[i].q_enabled;
ppc->segmentFeatureEnable[i][1] = h->h.segmentation.feat[i].lf_enabled;
ppc->segmentFeatureEnable[i][2] = h->h.segmentation.feat[i].ref_enabled;
ppc->segmentFeatureEnable[i][3] = h->h.segmentation.feat[i].skip_enabled;
ppc->segmentFeatureData[i][0] = h->h.segmentation.feat[i].q_val;
ppc->segmentFeatureData[i][1] = h->h.segmentation.feat[i].lf_val;
ppc->segmentFeatureData[i][2] = h->h.segmentation.feat[i].ref_val;
ppc->segmentFeatureData[i][3] = 0;
}
switch (avctx->colorspace) {
default:
case AVCOL_SPC_UNSPECIFIED:
ppc->colorSpace = 0;
break;
case AVCOL_SPC_BT470BG:
ppc->colorSpace = 1;
break;
case AVCOL_SPC_BT709:
ppc->colorSpace = 2;
break;
case AVCOL_SPC_SMPTE170M:
ppc->colorSpace = 3;
break;
case AVCOL_SPC_SMPTE240M:
ppc->colorSpace = 4;
break;
case AVCOL_SPC_BT2020_NCL:
ppc->colorSpace = 5;
break;
case AVCOL_SPC_RESERVED:
ppc->colorSpace = 6;
break;
case AVCOL_SPC_RGB:
ppc->colorSpace = 7;
break;
}
return 0;
}
static int nvdec_vp9_frame_params(AVCodecContext *avctx,
AVBufferRef *hw_frames_ctx)
{
// VP9 uses a fixed size pool of 8 possible reference frames
return ff_nvdec_frame_params(avctx, hw_frames_ctx, 8);
}
const AVHWAccel ff_vp9_nvdec_hwaccel = {
.name = "vp9_nvdec",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_VP9,
.pix_fmt = AV_PIX_FMT_CUDA,
.start_frame = nvdec_vp9_start_frame,
.end_frame = ff_nvdec_simple_end_frame,
.decode_slice = ff_nvdec_simple_decode_slice,
.frame_params = nvdec_vp9_frame_params,
.init = ff_nvdec_decode_init,
.uninit = ff_nvdec_decode_uninit,
.priv_data_size = sizeof(NVDECContext),
};
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