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0e93694e64
I'm told my prefix work-around wasn't enough to make it compile, although I'm not sure why; I did some basic testing and that approach appeared to work, but I'm not in a position to do a full compile on CentOS 6 so I can't be sure of anything. I have had it confirmed that the additional change to not use named initialisers is enough to make it compile, so let's throw that into the mix too.
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/*
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* VP8 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 "internal.h"
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#include "vp8.h"
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static unsigned char safe_get_ref_idx(VP8Frame *frame)
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{
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return frame ? ff_nvdec_get_ref_idx(frame->tf.f) : 255;
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}
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static int nvdec_vp8_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
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{
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VP8Context *h = avctx->priv_data;
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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 = h->framep[VP56_FRAME_CURRENT]->tf.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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.CodecSpecific.vp8 = {
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.width = cur_frame->width,
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.height = cur_frame->height,
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.first_partition_size = h->header_partition_size,
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.LastRefIdx = safe_get_ref_idx(h->framep[VP56_FRAME_PREVIOUS]),
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.GoldenRefIdx = safe_get_ref_idx(h->framep[VP56_FRAME_GOLDEN]),
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.AltRefIdx = safe_get_ref_idx(h->framep[VP56_FRAME_GOLDEN2]),
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/*
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* Explicit braces for anonymous inners and unnamed fields
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* to work around limitations in ancient versions of gcc.
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*/
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{ // union
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{ // struct
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!h->keyframe, // frame_type
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h->profile, // version
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!h->invisible, // show_frame
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h->segmentation.enabled ? // update_mb_segmentation_data
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h->segmentation.update_feature_data : 0,
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}
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}
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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_vp8_frame_params(AVCodecContext *avctx,
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AVBufferRef *hw_frames_ctx)
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{
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// VP8 uses a fixed size pool of 3 possible reference frames
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return ff_nvdec_frame_params(avctx, hw_frames_ctx, 3);
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}
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AVHWAccel ff_vp8_nvdec_hwaccel = {
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.name = "vp8_nvdec",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_VP8,
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.pix_fmt = AV_PIX_FMT_CUDA,
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.start_frame = nvdec_vp8_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_vp8_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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