1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
* Copyright (C) 2003 Ivan Kalvachev
*
* 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_XVMC_H
#define AVCODEC_XVMC_H
#include <X11/extensions/XvMC.h>
#include "avcodec.h"
#if LIBAVCODEC_VERSION_MAJOR < 53
#define AV_XVMC_STATE_DISPLAY_PENDING 1 /** the surface should be shown, the video driver manipulates this */
#define AV_XVMC_STATE_PREDICTION 2 /** the surface is needed for prediction, the codec manipulates this */
#define AV_XVMC_STATE_OSD_SOURCE 4 /** the surface is needed for subpicture rendering */
#endif
#define AV_XVMC_RENDER_MAGIC 0x1DC711C0 /**< magic value to ensure that regular pixel routines haven't corrupted the struct
the number is 1337 speak for the letters IDCT MCo (motion compensation) */
struct xvmc_pix_fmt {
/** Set by the calling application.
Once set these values are not supposed to be modified.
*/
//@{
/** The field contains special constant value.
It is used as test whenever the application knows the calling API,
and that there is no corruption caused by pixel routines.
- application - set during initialization
- libavcodec - unchanged
*/
int xvmc_id;
/** Pointer to the block array allocated by XvMCCreateBlocks()
it contins differential pixel data (in MoCo mode)
or coefficients for IDCT.
- application - set during initialization
- libavcodec - unchanged
*/
short* data_blocks;
/** Pointer to the macroblock description array allocated by XvMCCreateMacroBlocks().
- application - set during initialization
- libavcodec - unchanged
*/
XvMCMacroBlock* mv_blocks;
/** Number of all MB descriptions that could be stored in the mv_blocks array.
- application - set during initialization
- libavcodec - unchanged
*/
int total_number_of_mv_blocks;
/** Number of all blocks that could be stored at once in the data_blocks array.
- application - set during initialization
- libavcodec - unchanged
*/
int total_number_of_data_blocks;
/** Indicates that the hardware would interpret data_blocks as IDCT cefficients
and perform IDCT on them.
- application - set during initialization
- libavcodec - unchanged
*/
int idct;
/** In MoCo mode it indicates that Intra MB are assumed to be in unsigned format
Same as XVMC_INTRA_UNSIGNED flag.
- application - set during initialization
- libavcodec - unchanged
*/
int unsigned_intra;
/** Pointer to the Surface allocated by XvMCCreateSurface().
It identifies the frame on the video hardware and its state.
- application - set during initialization
- libavcodec - unchanged
*/
XvMCSurface* p_surface;
//}@
/** Set by the decoder before calling draw_horiz_band(),
needed by the XvMCRenderSurface function. */
//@{
/** Pointer to the surface used as past reference
- application - unchanged
- libavcodec - set
*/
XvMCSurface* p_past_surface;
/**Pointer to the surface used as future reference
- application - unchanged
- libavcodec - set
*/
XvMCSurface* p_future_surface;
/** top/bottom field or frame
- application - unchanged
- libavcodec - set
*/
unsigned int picture_structure;
/**XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
- application - unchanged
- libavcodec - set
*/
unsigned int flags;
//}@
/** Offset in the mv array for the current slice.
Macroblocks described before that offset are assumed to be already passed to the hardware.
- application - zeros it on get_buffer().
A successful draw_horiz_band() may increment it
with filled_mb_block_num or zero both.
- libavcodec - unchanged
*/
int start_mv_blocks_num;
/** Number of mv blocks that are filled by libavcodec and have to be passed to the hardware.
- application - zeros it on get_buffer() or after successful draw_horiz_band()
- libavcodec - increment with one of each stored MB
*/
int filled_mv_blocks_num;
/** Offset to the next free data block. The mv_blocks hold number pointing to the data blocks.
- application - zeroes it on get_buffer() and after successful draw_horiz_band()
- libvcodec - each macroblock increases it with the number of coded blocks in it.
*/
int next_free_data_block_num;
/** extensions may be placed here */
#if LIBAVCODEC_VERSION_MAJOR < 53
//@{
/** State - used to work around limitations in the MPlayer video system.
0 - Surface is not used.
1 - Surface is still held in application to be displayed or is still visible.
2 - Surface is still held in libavcodec buffer for prediction.
*/
int state;
void* p_osd_target_surface_render; ///< pointer to the surface where the subpicture is rendered
//}@
#endif
};
#endif /* AVCODEC_XVMC_H */
|
