FFmpeg: libavcodec/vdpau_internal.h Source File

FFmpeg
vdpau_internal.h
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1 /*
2  * Video Decode and Presentation API for UNIX (VDPAU) is used for
3  * HW decode acceleration for MPEG-1/2, H.264 and VC-1.
4  *
5  * Copyright (C) 2008 NVIDIA
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #ifndef AVCODEC_VDPAU_INTERNAL_H
25 #define AVCODEC_VDPAU_INTERNAL_H
26 
27 #include <stdint.h>
28 #include <vdpau/vdpau.h>
29 
30 #include "libavutil/frame.h"
31 #include "libavutil/hwcontext.h"
32 #include "libavutil/hwcontext_vdpau.h"
33 
34 #include "avcodec.h"
35 #include "vdpau.h"
36 
37 /** Extract VdpVideoSurface from an AVFrame */
38  static inline uintptr_t ff_vdpau_get_surface_id(AVFrame *pic)
39 {
40  return (uintptr_t)pic->data[3];
41 }
42 
43  union VDPAUPictureInfo {
44   VdpPictureInfoH264 h264;
45   VdpPictureInfoMPEG1Or2 mpeg;
46   VdpPictureInfoVC1 vc1;
47   VdpPictureInfoMPEG4Part2 mpeg4;
48 #ifdef VDP_DECODER_PROFILE_H264_HIGH_444_PREDICTIVE
49  VdpPictureInfoH264Predictive h264_predictive;
50 #endif
51 #ifdef VDP_DECODER_PROFILE_HEVC_MAIN
52  VdpPictureInfoHEVC hevc;
53 #endif
54 #ifdef VDP_YCBCR_FORMAT_Y_U_V_444
55  VdpPictureInfoHEVC444 hevc_444;
56 #endif
57 #ifdef VDP_DECODER_PROFILE_VP9_PROFILE_0
58  VdpPictureInfoVP9 vp9;
59 #endif
60 #ifdef VDP_DECODER_PROFILE_AV1_MAIN
61  VdpPictureInfoAV1 av1;
62 #endif
63 };
64 
65  typedef struct VDPAUHWContext {
66   AVVDPAUContext context;
67   VdpDevice device;
68   VdpGetProcAddress *get_proc_address;
69   char reset;
70   unsigned char flags;
71 } VDPAUHWContext;
72 
73  typedef struct VDPAUContext {
74  /**
75  * VDPAU device handle
76  */
77   VdpDevice device;
78 
79  /**
80  * VDPAU decoder handle
81  */
82   VdpDecoder decoder;
83 
84  /**
85  * VDPAU device driver
86  */
87   VdpGetProcAddress *get_proc_address;
88 
89  /**
90  * VDPAU decoder render callback
91  */
92   VdpDecoderRender *render;
93 
94   uint32_t width;
95   uint32_t height;
96 } VDPAUContext;
97 
98  struct vdpau_picture_context {
99  /**
100  * VDPAU picture information.
101  */
102   union VDPAUPictureInfo info;
103 
104  /**
105  * Allocated size of the bitstream_buffers table.
106  */
107   int bitstream_buffers_allocated;
108 
109  /**
110  * Useful bitstream buffers in the bitstream buffers table.
111  */
112   int bitstream_buffers_used;
113 
114  /**
115  * Table of bitstream buffers.
116  */
117   VdpBitstreamBuffer *bitstream_buffers;
118 };
119 
120 int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile,
121  int level);
122 int ff_vdpau_common_uninit(AVCodecContext *avctx);
123 
124 int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic,
125  const uint8_t *buffer, uint32_t size);
126 int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
127  struct vdpau_picture_context *pic);
128 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx);
129 int ff_vdpau_add_buffer(struct vdpau_picture_context *pic, const uint8_t *buf,
130  uint32_t buf_size);
131 int ff_vdpau_common_frame_params(AVCodecContext *avctx,
132  AVBufferRef *hw_frames_ctx);
133 
134 #endif /* AVCODEC_VDPAU_INTERNAL_H */
level
uint8_t level
Definition: svq3.c:204
ff_vdpau_common_frame_params
int ff_vdpau_common_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
Definition: vdpau.c:123
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
VDPAUHWContext::get_proc_address
VdpGetProcAddress * get_proc_address
Definition: vdpau_internal.h:68
vdpau_picture_context::bitstream_buffers_used
int bitstream_buffers_used
Useful bitstream buffers in the bitstream buffers table.
Definition: vdpau_internal.h:112
VDPAUPictureInfo::mpeg
VdpPictureInfoMPEG1Or2 mpeg
Definition: vdpau_internal.h:45
VDPAUContext::width
uint32_t width
Definition: vdpau_internal.h:94
VDPAUContext::render
VdpDecoderRender * render
VDPAU decoder render callback.
Definition: vdpau_internal.h:92
VDPAUHWContext::device
VdpDevice device
Definition: vdpau_internal.h:67
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:351
vdpau_picture_context
Definition: vdpau_internal.h:98
AVVDPAUContext
This structure is used to share data between the libavcodec library and the client video application.
Definition: vdpau.h:80
ff_vdpau_add_buffer
int ff_vdpau_add_buffer(struct vdpau_picture_context *pic, const uint8_t *buf, uint32_t buf_size)
Definition: vdpau.c:386
ff_vdpau_common_init
int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile, int level)
Definition: vdpau.c:142
vdpau.h
VDPAUPictureInfo::h264
VdpPictureInfoH264 h264
Definition: vdpau_internal.h:44
ff_vdpau_get_surface_id
static uintptr_t ff_vdpau_get_surface_id(AVFrame *pic)
Extract VdpVideoSurface from an AVFrame.
Definition: vdpau_internal.h:38
VDPAUContext::height
uint32_t height
Definition: vdpau_internal.h:95
VDPAUPictureInfo
Definition: vdpau_internal.h:43
ff_vdpau_common_end_frame
int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame, struct vdpau_picture_context *pic)
Definition: vdpau.c:341
VDPAUHWContext
Definition: vdpau_internal.h:65
VDPAUContext::device
VdpDevice device
VDPAU device handle.
Definition: vdpau_internal.h:77
ff_vdpau_common_uninit
int ff_vdpau_common_uninit(AVCodecContext *avctx)
Definition: vdpau.c:293
VDPAUContext
Definition: vdpau_internal.h:73
VDPAUPictureInfo::mpeg4
VdpPictureInfoMPEG4Part2 mpeg4
Definition: vdpau_internal.h:47
size
int size
Definition: twinvq_data.h:10344
VDPAUContext::decoder
VdpDecoder decoder
VDPAU decoder handle.
Definition: vdpau_internal.h:82
VDPAUPictureInfo::vc1
VdpPictureInfoVC1 vc1
Definition: vdpau_internal.h:46
frame.h
ff_vdpau_mpeg_end_frame
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
VDPAUHWContext::reset
char reset
Definition: vdpau_internal.h:69
ff_vdpau_common_start_frame
int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic, const uint8_t *buffer, uint32_t size)
vdpau_picture_context::bitstream_buffers
VdpBitstreamBuffer * bitstream_buffers
Table of bitstream buffers.
Definition: vdpau_internal.h:117
VDPAUHWContext::context
AVVDPAUContext context
Definition: vdpau_internal.h:66
profile
int profile
Definition: mxfenc.c:2009
hwcontext_vdpau.h
avcodec.h
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
VDPAUContext::get_proc_address
VdpGetProcAddress * get_proc_address
VDPAU device driver.
Definition: vdpau_internal.h:87
vdpau_picture_context::bitstream_buffers_allocated
int bitstream_buffers_allocated
Allocated size of the bitstream_buffers table.
Definition: vdpau_internal.h:107
AVCodecContext
main external API structure.
Definition: avcodec.h:426
vdpau_picture_context::info
union VDPAUPictureInfo info
VDPAU picture information.
Definition: vdpau_internal.h:102
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
VDPAUHWContext::flags
unsigned char flags
Definition: vdpau_internal.h:70
hwcontext.h
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