| /* |
| * 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), |
| }; |