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nvdec.h
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1 /*
2  * HW decode acceleration through NVDEC
3  *
4  * Copyright (c) 2016 Anton Khirnov
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_NVDEC_H
24 #define AVCODEC_NVDEC_H
25 
27 
28 #include <stdint.h>
29 
30 #include "libavutil/buffer.h"
31 #include "libavutil/frame.h"
32 
33 #include "avcodec.h"
34 
35 #if defined(NVDECAPI_MAJOR_VERSION) && defined(NVDECAPI_MINOR_VERSION)
36 # define NVDECAPI_CHECK_VERSION(major, minor) \
37  ((major) < NVDECAPI_MAJOR_VERSION || ((major) == NVDECAPI_MAJOR_VERSION && (minor) <= NVDECAPI_MINOR_VERSION))
38 #else
39 /* version macros were added in SDK 8.1 ffnvcodec */
40 # define NVDECAPI_CHECK_VERSION(major, minor) \
41  ((major) < 8 || ((major) == 8 && (minor) <= 0))
42 #endif
43 
44 typedef struct NVDECFrame {
45  unsigned int idx;
48 } NVDECFrame;
49 
50 typedef struct NVDECContext {
51  CUVIDPICPARAMS pic_params;
52 
54 
56 
59  unsigned int bitstream_allocated;
60 
61  unsigned *slice_offsets;
62  int nb_slices;
64 } NVDECContext;
65 
72  uint32_t size);
74  AVBufferRef *hw_frames_ctx,
75  int dpb_size);
77 
78 #endif /* AVCODEC_NVDEC_H */
AVBufferRef * decoder_ref
Definition: nvdec.h:47
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
int ff_nvdec_decode_uninit(AVCodecContext *avctx)
Definition: nvdec.c:248
unsigned * slice_offsets
Definition: nvdec.h:61
int nb_slices
Definition: nvdec.h:62
uint8_t * bitstream
Definition: nvdec.h:57
int ff_nvdec_simple_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: nvdec.c:541
uint8_t
CUVIDPICPARAMS pic_params
Definition: nvdec.h:51
int ff_nvdec_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx, int dpb_size)
Definition: nvdec.c:573
int ff_nvdec_start_frame(AVCodecContext *avctx, AVFrame *frame)
Definition: nvdec.c:457
static AVFrame * frame
AVBufferRef * decoder_ref
Definition: nvdec.h:55
ptrdiff_t size
Definition: opengl_enc.c:101
The buffer pool.
unsigned int idx
Definition: nvdec.h:45
int ff_nvdec_end_frame(AVCodecContext *avctx)
Definition: nvdec.c:499
reference-counted frame API
int bitstream_len
Definition: nvdec.h:58
Libavcodec external API header.
unsigned int bitstream_allocated
Definition: nvdec.h:59
main external API structure.
Definition: avcodec.h:1520
int ff_nvdec_decode_init(AVCodecContext *avctx)
Definition: nvdec.c:266
unsigned int slice_offsets_allocated
Definition: nvdec.h:63
refcounted data buffer API
AVBufferRef * idx_ref
Definition: nvdec.h:46
A reference to a data buffer.
Definition: buffer.h:81
AVBufferPool * decoder_pool
Definition: nvdec.h:53
int ff_nvdec_simple_end_frame(AVCodecContext *avctx)
Definition: nvdec.c:533
int ff_nvdec_get_ref_idx(AVFrame *frame)
Definition: nvdec.c:625
GLuint buffer
Definition: opengl_enc.c:102