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