Deprecate some unused xvmc structure fields.
[libav.git] / libavcodec / xvmc.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 AVCODEC_XVMC_H
22 #define AVCODEC_XVMC_H
23
24 #include <X11/extensions/XvMC.h>
25
26 #define AV_XVMC_STATE_DISPLAY_PENDING 1 /** the surface should be shown, the video driver manipulates this */
27 #define AV_XVMC_STATE_PREDICTION 2 /** the surface is needed for prediction, the codec manipulates this */
28 #define AV_XVMC_STATE_OSD_SOURCE 4 /** this surface is needed for subpicture rendering */
29 #define AV_XVMC_RENDER_MAGIC 0x1DC711C0 /**< magic value to ensure that regular pixel routines haven't corrupted the struct */
30 // 1337 IDCT MCo
31
32 struct xvmc_render_state {
33 /** set by calling application */
34 //@{
35 int magic; ///< used as a check against memory corruption by regular pixel routines
36
37 short* data_blocks;
38 XvMCMacroBlock* mv_blocks;
39 int total_number_of_mv_blocks;
40 int total_number_of_data_blocks;
41 #if LIBAVCODEC_VERSION_MAJOR < 53
42 int mc_type; ///< XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
43 #endif
44 int idct; ///< indicate that IDCT acceleration level is used
45 #if LIBAVCODEC_VERSION_MAJOR < 53
46 int chroma_format; ///< XVMC_CHROMA_FORMAT_420/422/444
47 #endif
48 int unsigned_intra; ///< +-128 for intra pictures after clipping
49 XvMCSurface* p_surface; ///< pointer to rendered surface, never changed
50 //}@
51
52 /** set by the decoder
53 used by the XvMCRenderSurface function */
54 //@{
55 XvMCSurface* p_past_surface; ///< pointer to the past surface
56 XvMCSurface* p_future_surface; ///< pointer to the future prediction surface
57
58 unsigned int picture_structure; ///< top/bottom fields or frame
59 unsigned int flags; ///< XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
60 unsigned int display_flags; ///< 1, 2 or 1+2 fields for XvMCPutSurface
61 //}@
62
63 /** modified by calling application and the decoder */
64 //@{
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 //}@
71 /** extensions may be placed here*/
72 #if LIBAVCODEC_VERSION_MAJOR < 53
73 //@{
74 void* p_osd_target_surface_render; ///< pointer to the surface where subpicture is rendered
75 //}@
76 #endif
77 };
78
79 #endif /* AVCODEC_XVMC_H */