10fd56ffaae6f6d156bbad3558fbf722f0511071
[libav.git] / libavcodec / xvmc_render.h
1 /*
2 * Copyright (C) 2003 Ivan Kalvachev
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef FFMPEG_XVMC_RENDER_H
22 #define FFMPEG_XVMC_RENDER_H
23
24 #include <X11/Xlib.h>
25 #include <X11/Xutil.h>
26 #include <X11/Xatom.h>
27 #include <X11/extensions/Xv.h>
28 #include <X11/extensions/Xvlib.h>
29 #include <X11/extensions/XvMClib.h>
30
31
32 //the surface should be shown, video driver manipulates this
33 #define MP_XVMC_STATE_DISPLAY_PENDING 1
34 //the surface is needed for prediction, codec manipulates this
35 #define MP_XVMC_STATE_PREDICTION 2
36 //this surface is needed for subpicture rendering
37 #define MP_XVMC_STATE_OSD_SOURCE 4
38 // 1337 IDCT MCo
39 #define MP_XVMC_RENDER_MAGIC 0x1DC711C0
40
41 typedef struct{
42 //these are not changed by the decoder!
43 int magic;
44
45 short * data_blocks;
46 XvMCMacroBlock * mv_blocks;
47 int total_number_of_mv_blocks;
48 int total_number_of_data_blocks;
49 int mc_type;//XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
50 int idct;//Do we use IDCT acceleration?
51 int chroma_format;//420,422,444
52 int unsigned_intra;//+-128 for intra pictures after clip
53 XvMCSurface* p_surface;//pointer to rendered surface, never changed
54
55 //these are changed by decoder
56 //used by XvMCRenderSurface function
57 XvMCSurface* p_past_surface;//pointer to the past surface
58 XvMCSurface* p_future_surface;//pointer to the future prediction surface
59
60 unsigned int picture_structure;//top/bottom fields or frame!
61 unsigned int flags;//XVMC_SECOND_FIELD - 1'st or 2'd field in the sequence
62 unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface,
63
64 //these are internal communication ones
65 int state;//0-free, 1 Waiting to Display, 2 Waiting for prediction
66 int start_mv_blocks_num;//offset in the array for the current slice, updated by vo
67 int filled_mv_blocks_num;//processed mv block in this slice, changed by decoder
68
69 int next_free_data_block_num;//used in add_mv_block, pointer to next free block
70 //extensions
71 void * p_osd_target_surface_render;//pointer to the surface where subpicture is rendered
72
73 } xvmc_render_state_t;
74
75 #endif /* FFMPEG_XVMC_RENDER_H */