early-access version 1432
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pineappleEA
141
externals/ffmpeg/libavcodec/nvdec_vc1.c
vendored
Executable file
141
externals/ffmpeg/libavcodec/nvdec_vc1.c
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/*
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* VC1 HW decode acceleration through NVDEC
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*
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* Copyright (c) 2017 Philip Langdale
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*
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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 "avcodec.h"
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#include "nvdec.h"
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#include "decode.h"
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#include "vc1.h"
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static int nvdec_vc1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
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{
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VC1Context *v = avctx->priv_data;
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MpegEncContext *s = &v->s;
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NVDECContext *ctx = avctx->internal->hwaccel_priv_data;
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CUVIDPICPARAMS *pp = &ctx->pic_params;
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FrameDecodeData *fdd;
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NVDECFrame *cf;
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AVFrame *cur_frame = s->current_picture.f;
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int ret;
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ret = ff_nvdec_start_frame(avctx, cur_frame);
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if (ret < 0)
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return ret;
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fdd = (FrameDecodeData*)cur_frame->private_ref->data;
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cf = (NVDECFrame*)fdd->hwaccel_priv;
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*pp = (CUVIDPICPARAMS) {
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.PicWidthInMbs = (cur_frame->width + 15) / 16,
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.FrameHeightInMbs = (cur_frame->height + 15) / 16,
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.CurrPicIdx = cf->idx,
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.field_pic_flag = v->field_mode,
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.bottom_field_flag = v->cur_field_type,
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.second_field = v->second_field,
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.intra_pic_flag = s->pict_type == AV_PICTURE_TYPE_I ||
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s->pict_type == AV_PICTURE_TYPE_BI,
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.ref_pic_flag = s->pict_type == AV_PICTURE_TYPE_I ||
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s->pict_type == AV_PICTURE_TYPE_P,
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.CodecSpecific.vc1 = {
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.ForwardRefIdx = ff_nvdec_get_ref_idx(s->last_picture.f),
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.BackwardRefIdx = ff_nvdec_get_ref_idx(s->next_picture.f),
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.FrameWidth = cur_frame->width,
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.FrameHeight = cur_frame->height,
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.intra_pic_flag = s->pict_type == AV_PICTURE_TYPE_I ||
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s->pict_type == AV_PICTURE_TYPE_BI,
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.ref_pic_flag = s->pict_type == AV_PICTURE_TYPE_I ||
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s->pict_type == AV_PICTURE_TYPE_P,
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.progressive_fcm = v->fcm == 0,
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.profile = v->profile,
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.postprocflag = v->postprocflag,
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.pulldown = v->broadcast,
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.interlace = v->interlace,
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.tfcntrflag = v->tfcntrflag,
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.finterpflag = v->finterpflag,
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.psf = v->psf,
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.multires = v->multires,
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.syncmarker = v->resync_marker,
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.rangered = v->rangered,
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.maxbframes = s->max_b_frames,
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.panscan_flag = v->panscanflag,
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.refdist_flag = v->refdist_flag,
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.extended_mv = v->extended_mv,
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.dquant = v->dquant,
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.vstransform = v->vstransform,
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.loopfilter = v->s.loop_filter,
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.fastuvmc = v->fastuvmc,
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.overlap = v->overlap,
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.quantizer = v->quantizer_mode,
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.extended_dmv = v->extended_dmv,
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.range_mapy_flag = v->range_mapy_flag,
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.range_mapy = v->range_mapy,
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.range_mapuv_flag = v->range_mapuv_flag,
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.range_mapuv = v->range_mapuv,
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.rangeredfrm = v->rangeredfrm,
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}
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};
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return 0;
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}
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static int nvdec_vc1_frame_params(AVCodecContext *avctx,
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AVBufferRef *hw_frames_ctx)
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{
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// Each frame can at most have one P and one B reference
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return ff_nvdec_frame_params(avctx, hw_frames_ctx, 2, 0);
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}
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const AVHWAccel ff_vc1_nvdec_hwaccel = {
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.name = "vc1_nvdec",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_VC1,
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.pix_fmt = AV_PIX_FMT_CUDA,
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.start_frame = nvdec_vc1_start_frame,
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.end_frame = ff_nvdec_simple_end_frame,
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.decode_slice = ff_nvdec_simple_decode_slice,
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.frame_params = nvdec_vc1_frame_params,
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.init = ff_nvdec_decode_init,
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.uninit = ff_nvdec_decode_uninit,
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.priv_data_size = sizeof(NVDECContext),
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};
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#if CONFIG_WMV3_NVDEC_HWACCEL
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const AVHWAccel ff_wmv3_nvdec_hwaccel = {
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.name = "wmv3_nvdec",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_WMV3,
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.pix_fmt = AV_PIX_FMT_CUDA,
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.start_frame = nvdec_vc1_start_frame,
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.end_frame = ff_nvdec_simple_end_frame,
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.decode_slice = ff_nvdec_simple_decode_slice,
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.frame_params = nvdec_vc1_frame_params,
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.init = ff_nvdec_decode_init,
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.uninit = ff_nvdec_decode_uninit,
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.priv_data_size = sizeof(NVDECContext),
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};
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#endif
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