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