diff options
Diffstat (limited to 'libavcodec/nvdec_vp9.c')
| -rw-r--r-- | libavcodec/nvdec_vp9.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/libavcodec/nvdec_vp9.c b/libavcodec/nvdec_vp9.c new file mode 100644 index 0000000000..a76bcf9943 --- /dev/null +++ b/libavcodec/nvdec_vp9.c @@ -0,0 +1,184 @@ +/* + * 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, 0); +} + +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), +}; |