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82 lines
2.5 KiB
C
Executable File
82 lines
2.5 KiB
C
Executable File
/*
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* HW decode acceleration through NVDEC
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*
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* Copyright (c) 2016 Anton Khirnov
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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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#ifndef AVCODEC_NVDEC_H
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#define AVCODEC_NVDEC_H
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#include "compat/cuda/dynlink_loader.h"
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#include <stdint.h>
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#include "libavutil/buffer.h"
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#include "libavutil/frame.h"
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#include "avcodec.h"
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#if defined(NVDECAPI_MAJOR_VERSION) && defined(NVDECAPI_MINOR_VERSION)
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# define NVDECAPI_CHECK_VERSION(major, minor) \
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((major) < NVDECAPI_MAJOR_VERSION || ((major) == NVDECAPI_MAJOR_VERSION && (minor) <= NVDECAPI_MINOR_VERSION))
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#else
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/* version macros were added in SDK 8.1 ffnvcodec */
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# define NVDECAPI_CHECK_VERSION(major, minor) \
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((major) < 8 || ((major) == 8 && (minor) <= 0))
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#endif
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typedef struct NVDECFrame {
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unsigned int idx;
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AVBufferRef *idx_ref;
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AVBufferRef *decoder_ref;
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} NVDECFrame;
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typedef struct NVDECContext {
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CUVIDPICPARAMS pic_params;
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AVBufferPool *decoder_pool;
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AVBufferRef *decoder_ref;
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uint8_t *bitstream;
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int bitstream_len;
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unsigned int bitstream_allocated;
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unsigned *slice_offsets;
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int nb_slices;
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unsigned int slice_offsets_allocated;
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int supports_444;
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} NVDECContext;
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int ff_nvdec_decode_init(AVCodecContext *avctx);
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int ff_nvdec_decode_uninit(AVCodecContext *avctx);
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int ff_nvdec_start_frame(AVCodecContext *avctx, AVFrame *frame);
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int ff_nvdec_end_frame(AVCodecContext *avctx);
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int ff_nvdec_simple_end_frame(AVCodecContext *avctx);
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int ff_nvdec_simple_decode_slice(AVCodecContext *avctx, const uint8_t *buffer,
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uint32_t size);
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int ff_nvdec_frame_params(AVCodecContext *avctx,
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AVBufferRef *hw_frames_ctx,
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int dpb_size,
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int supports_444);
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int ff_nvdec_get_ref_idx(AVFrame *frame);
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#endif /* AVCODEC_NVDEC_H */
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