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initial XvMC support, define common packet for decoder <-> libXvMC communication

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Originally committed as revision 2086 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ivan Kalvachev 2003-07-26 01:34:32 +00:00
parent 2e7b4c8442
commit 7fade368d5
1 changed files with 47 additions and 0 deletions
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xvmc_render.h Normal file
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#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xv.h>
#include <X11/extensions/Xvlib.h>
#include <X11/extensions/XvMClib.h>
//the surface should be shown, video driver manipulate this
#define MP_XVMC_STATE_DISPLAY_PENDING 1
//the surface is needed for prediction, codec manipulate this
#define MP_XVMC_STATE_PREDICTION 2
// 1337 IDCT MCo
#define MP_XVMC_RENDER_MAGIC 0x1DC711C0
typedef struct{
//these are not changed by decoder!
int magic;
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;//does we use IDCT acceleration?
int chroma_format;//420,422,444
int unsigned_intra;//+-128 for intra pictures after clip
int reserved1[13];//future extenstions (e.g. gmc,qpel)
XvMCSurface* p_surface;//pointer to rendered surface, never changed
//these are changed by decoder
//used by 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 - 1'st or 2'd field in the sequence
unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface,
//these are internal communication one
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,change by decoder
int next_free_data_block_num;//used in add_mv_block, pointer to next free block
} xvmc_render_state_t;