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libavcodec
nvdec.h
Go to the documentation of this file.
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/*
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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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}
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
ff_nvdec_get_ref_idx
(
AVFrame
*
frame
);
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#endif
/* AVCODEC_NVDEC_H */
NVDECFrame::decoder_ref
AVBufferRef * decoder_ref
Definition:
nvdec.h:47
AVFrame
This structure describes decoded (raw) audio or video data.
Definition:
frame.h:218
ff_nvdec_decode_uninit
int ff_nvdec_decode_uninit(AVCodecContext *avctx)
Definition:
nvdec.c:246
NVDECContext::slice_offsets
unsigned * slice_offsets
Definition:
nvdec.h:61
NVDECContext::nb_slices
int nb_slices
Definition:
nvdec.h:62
NVDECContext::bitstream
uint8_t * bitstream
Definition:
nvdec.h:57
NVDECFrame
Definition:
nvdec.h:44
ff_nvdec_simple_decode_slice
int ff_nvdec_simple_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition:
nvdec.c:502
uint8_t
uint8_t
Definition:
audio_convert.c:194
NVDECContext::pic_params
CUVIDPICPARAMS pic_params
Definition:
nvdec.h:51
ff_nvdec_frame_params
int ff_nvdec_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx, int dpb_size)
Definition:
nvdec.c:524
ff_nvdec_start_frame
int ff_nvdec_start_frame(AVCodecContext *avctx, AVFrame *frame)
Definition:
nvdec.c:418
frame
static AVFrame * frame
Definition:
demuxing_decoding.c:53
NVDECContext::decoder_ref
AVBufferRef * decoder_ref
Definition:
nvdec.h:55
size
ptrdiff_t size
Definition:
opengl_enc.c:101
AVBufferPool
The buffer pool.
Definition:
buffer_internal.h:76
NVDECFrame::idx
unsigned int idx
Definition:
nvdec.h:45
ff_nvdec_end_frame
int ff_nvdec_end_frame(AVCodecContext *avctx)
Definition:
nvdec.c:460
frame.h
reference-counted frame API
NVDECContext::bitstream_len
int bitstream_len
Definition:
nvdec.h:58
avcodec.h
Libavcodec external API header.
NVDECContext::bitstream_allocated
unsigned int bitstream_allocated
Definition:
nvdec.h:59
AVCodecContext
main external API structure.
Definition:
avcodec.h:1518
ff_nvdec_decode_init
int ff_nvdec_decode_init(AVCodecContext *avctx)
Definition:
nvdec.c:264
NVDECContext::slice_offsets_allocated
unsigned int slice_offsets_allocated
Definition:
nvdec.h:63
buffer.h
refcounted data buffer API
NVDECFrame::idx_ref
AVBufferRef * idx_ref
Definition:
nvdec.h:46
NVDECContext
Definition:
nvdec.h:50
dynlink_loader.h
AVBufferRef
A reference to a data buffer.
Definition:
buffer.h:81
NVDECContext::decoder_pool
AVBufferPool * decoder_pool
Definition:
nvdec.h:53
ff_nvdec_simple_end_frame
int ff_nvdec_simple_end_frame(AVCodecContext *avctx)
Definition:
nvdec.c:494
ff_nvdec_get_ref_idx
int ff_nvdec_get_ref_idx(AVFrame *frame)
Definition:
nvdec.c:570
buffer
GLuint buffer
Definition:
opengl_enc.c:102
Generated on Sun May 13 2018 02:03:53 for FFmpeg by
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