2 * Copyright (C) 2003 Ivan Kalvachev
4 * This file is part of FFmpeg.
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.
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.
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
21 #ifndef AVCODEC_XVMC_H
22 #define AVCODEC_XVMC_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>
32 //the surface should be shown, the video driver manipulates this
33 #define AV_XVMC_STATE_DISPLAY_PENDING 1
34 //the surface is needed for prediction, the codec manipulates this
35 #define AV_XVMC_STATE_PREDICTION 2
36 //this surface is needed for subpicture rendering
37 #define AV_XVMC_STATE_OSD_SOURCE 4
39 #define AV_XVMC_RENDER_MAGIC 0x1DC711C0
41 #if LIBAVCODEC_VERSION_MAJOR < 53
42 #define MP_XVMC_STATE_DISPLAY_PENDING AV_XVMC_STATE_DISPLAY_PENDING
43 #define MP_XVMC_STATE_PREDICTION AV_XVMC_STATE_PREDICTION
44 #define MP_XVMC_STATE_OSD_SOURCE AV_XVMC_STATE_OSD_SOURCE
45 #define MP_XVMC_RENDER_MAGIC AV_XVMC_RENDER_MAGIC
48 struct xvmc_render_state {
49 //these are not changed by the decoder!
50 int magic; ///< used as check for memory corruption by regular pixel routines
53 XvMCMacroBlock * mv_blocks;
54 int total_number_of_mv_blocks;
55 int total_number_of_data_blocks;
56 int mc_type; //XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
57 int idct; //< indicate that IDCT acceleration level is used
58 int chroma_format; ///< XVMC_CHROMA_FORMAT_420/422/444
59 int unsigned_intra; //+-128 for intra pictures after clipping
60 XvMCSurface* p_surface; //pointer to rendered surface, never changed
62 //these are changed by the decoder
63 //used by the XvMCRenderSurface function
64 XvMCSurface* p_past_surface; //pointer to the past surface
65 XvMCSurface* p_future_surface; //pointer to the future prediction surface
67 unsigned int picture_structure; //top/bottom fields or frame!
68 unsigned int flags; //XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
69 unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface
71 //these are for internal communication
72 int state; //0 - free, 1 - waiting to display, 2 - waiting for prediction
73 int start_mv_blocks_num; //offset in the array for the current slice, updated by vo
74 int filled_mv_blocks_num; //processed mv block in this slice, changed by decoder
76 int next_free_data_block_num; //used in add_mv_block, pointer to next free block
78 void * p_osd_target_surface_render; //pointer to the surface where subpicture is rendered
82 #endif /* AVCODEC_XVMC_H */