Fix non-Doxygen comment.
[libav.git] / libavcodec / xvmc.h
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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
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21#ifndef AVCODEC_XVMC_H
22#define AVCODEC_XVMC_H
699b3f99 23
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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
1369e003 31#include "avcodec.h"
7fade368 32
1aa7abb2 33//the surface should be shown, the video driver manipulates this
ea375af8 34#define AV_XVMC_STATE_DISPLAY_PENDING 1
1aa7abb2 35//the surface is needed for prediction, the codec manipulates this
117f9234 36#define AV_XVMC_STATE_PREDICTION 2
1aa7abb2 37//this surface is needed for subpicture rendering
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38#define AV_XVMC_STATE_OSD_SOURCE 4
39// 1337 IDCT MCo
40#define AV_XVMC_RENDER_MAGIC 0x1DC711C0
41
42#if LIBAVCODEC_VERSION_MAJOR < 53
43#define MP_XVMC_STATE_DISPLAY_PENDING AV_XVMC_STATE_DISPLAY_PENDING
44#define MP_XVMC_STATE_PREDICTION AV_XVMC_STATE_PREDICTION
45#define MP_XVMC_STATE_OSD_SOURCE AV_XVMC_STATE_OSD_SOURCE
46#define MP_XVMC_RENDER_MAGIC AV_XVMC_RENDER_MAGIC
47#endif
7fade368 48
c96da3ed 49struct xvmc_render_state {
6915cf38 50 //these are not changed by the decoder!
ff921378 51 int magic; ///< used as check for memory corruption by regular pixel routines
7fade368 52
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53 short * data_blocks;
54 XvMCMacroBlock * mv_blocks;
55 int total_number_of_mv_blocks;
56 int total_number_of_data_blocks;
4f7e6f0d 57 int mc_type; //XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
e0dcbda2 58 int idct; ///< indicate that IDCT acceleration level is used
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59 int chroma_format; ///< XVMC_CHROMA_FORMAT_420/422/444
60 int unsigned_intra; //+-128 for intra pictures after clipping
6915cf38 61 XvMCSurface* p_surface; //pointer to rendered surface, never changed
7fade368 62
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63 //these are changed by the decoder
64 //used by the XvMCRenderSurface function
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65 XvMCSurface* p_past_surface; //pointer to the past surface
66 XvMCSurface* p_future_surface; //pointer to the future prediction surface
7fade368 67
6915cf38 68 unsigned int picture_structure; //top/bottom fields or frame!
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69 unsigned int flags; //XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
70 unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface
7fade368 71
6915cf38 72 //these are for internal communication
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73 int state; //0 - free, 1 - waiting to display, 2 - waiting for prediction
74 int start_mv_blocks_num; //offset in the array for the current slice, updated by vo
75 int filled_mv_blocks_num; //processed mv block in this slice, changed by decoder
115329f1 76
4f7e6f0d 77 int next_free_data_block_num; //used in add_mv_block, pointer to next free block
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78 //extensions
79 void * p_osd_target_surface_render; //pointer to the surface where subpicture is rendered
7fade368 80
c96da3ed 81};
699b3f99 82
af28efa2 83#endif /* AVCODEC_XVMC_H */