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/*
* 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"
/**the surface should be shown, the video driver manipulates this*/
#define AV_XVMC_STATE_DISPLAY_PENDING 1
/**the surface is needed for prediction, the codec manipulates this*/
#define AV_XVMC_STATE_PREDICTION 2
/**this surface is needed for subpicture rendering*/
#define AV_XVMC_STATE_OSD_SOURCE 4
/**<magic value to ensure that regular pixel routines haven't corrupted the struct*/
// 1337 IDCT MCo
#define AV_XVMC_RENDER_MAGIC 0x1DC711C0
#if LIBAVCODEC_VERSION_MAJOR < 53
#define MP_XVMC_STATE_DISPLAY_PENDING AV_XVMC_STATE_DISPLAY_PENDING
#define MP_XVMC_STATE_PREDICTION AV_XVMC_STATE_PREDICTION
#define MP_XVMC_STATE_OSD_SOURCE AV_XVMC_STATE_OSD_SOURCE
#define MP_XVMC_RENDER_MAGIC AV_XVMC_RENDER_MAGIC
#endif
struct xvmc_render_state {
/** these are not changed by the decoder! */
//@{
int magic; ///< used as check for memory corruption by regular pixel routines
short* data_blocks;
XvMCMacroBlock* mv_blocks;
int total_number_of_mv_blocks;
int total_number_of_data_blocks;
int mc_type; ///<XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
int idct; ///< indicate that IDCT acceleration level is used
int chroma_format; ///< XVMC_CHROMA_FORMAT_420/422/444
int unsigned_intra; ///<+-128 for intra pictures after clipping
XvMCSurface* p_surface; ///<pointer to rendered surface, never changed
//}@
/** these are changed by the decoder
//used by the XvMCRenderSurface function */
//@{
XvMCSurface* p_past_surface; ///<pointer to the past surface
XvMCSurface* p_future_surface; ///<pointer to the future prediction surface
unsigned int picture_structure; ///<top/bottom fields or frame!
unsigned int flags; ///<XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
unsigned int display_flags; ///<1,2 or 1+2 fields for XvMCPutSurface
//}@
/** these are for internal communication */
//@{
int state; ///<0 - free, 1 - waiting to display, 2 - waiting for prediction
int start_mv_blocks_num; ///<offset in the array for the current slice, updated by vo
int filled_mv_blocks_num; ///<processed mv block in this slice, changed by decoder
int next_free_data_block_num; ///<used in add_mv_block, pointer to next free block
//}@
/**extensions*/
//@{
void * p_osd_target_surface_render; ///<pointer to the surface where subpicture is rendered
//}@
};
#endif /* AVCODEC_XVMC_H */
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