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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"
#define AV_XVMC_STATE_DISPLAY_PENDING 1 /** the surface should be shown, the video driver manipulates this */
#define AV_XVMC_STATE_PREDICTION 2 /** the surface is needed for prediction, the codec manipulates this */
#define AV_XVMC_STATE_OSD_SOURCE 4 /** this surface is needed for subpicture rendering */
#define AV_XVMC_RENDER_MAGIC 0x1DC711C0 /**< magic value to ensure that regular pixel routines haven't corrupted the struct */
// 1337 IDCT MCo
struct xvmc_render_state {
/** set by calling application */
//@{
int magic; ///< used as a check against 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 idct; ///< indicate that IDCT acceleration level is used
int unsigned_intra; ///< +-128 for intra pictures after clipping
XvMCSurface* p_surface; ///< pointer to rendered surface, never changed
//}@
/** set 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
#if LIBAVCODEC_VERSION_MAJOR < 53
unsigned int display_flags; ///< 1, 2 or 1+2 fields for XvMCPutSurface
#endif
//}@
/** modified by calling application and the decoder */
//@{
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 may be placed here */
#if LIBAVCODEC_VERSION_MAJOR < 53
//@{
int state; ///< 0 - free, 1 - waiting to display, 2 - waiting for prediction
void* p_osd_target_surface_render; ///< pointer to the surface where subpicture is rendered
//}@
#endif
};
#endif /* AVCODEC_XVMC_H */
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