/* * vidixlib.h * VIDIXLib - Library for VIDeo Interface for *niX * This interface is introduced as universal one to MPEG decoder, * BES == Back End Scaler and YUV2RGB hw accelerators. * In the future it may be expanded up to capturing and audio things. * Main goal of this this interface imlpementation is providing DGA * everywhere where it's possible (unlike X11 and other). * Copyright 2002 Nick Kurshev * Licence: GPL * This interface is based on v4l2, fbvid.h, mga_vid.h projects * and personally my ideas. * NOTE: This interface is introduces as APP interface. * Don't use it for driver. * It provides multistreaming. This mean that APP can handle * several streams simultaneously. (Example: Video capturing and video * playback or capturing, video playback, audio encoding and so on). */ #ifndef VIDIXLIB_H #define VIDIXLIB_H #ifdef __cplusplus extern "C" { #endif #include "vidix.h" typedef struct VDXDriver { const char *name; struct VDXDriver *next; int (* probe) (int verbose, int force); int (* get_caps) (vidix_capability_t *cap); int (*query_fourcc)(vidix_fourcc_t *); int (*init)(void); void (*destroy)(void); int (*config_playback)(vidix_playback_t *); int (*playback_on)( void ); int (*playback_off)( void ); /* Functions below can be missed in driver ;) */ int (*frame_sel)( unsigned frame_idx ); int (*get_eq)( vidix_video_eq_t * ); int (*set_eq)( const vidix_video_eq_t * ); int (*get_deint)( vidix_deinterlace_t * ); int (*set_deint)( const vidix_deinterlace_t * ); int (*copy_frame)( const vidix_dma_t * ); int (*get_gkey)( vidix_grkey_t * ); int (*set_gkey)( const vidix_grkey_t * ); int (*get_num_fx)( unsigned * ); int (*get_fx)( vidix_oem_fx_t * ); int (*set_fx)( const vidix_oem_fx_t * ); } VDXDriver; typedef struct VDXContext { VDXDriver *drv; /* might be filled in by much more info later on */ } VDXContext; typedef VDXContext * VDL_HANDLE; /* returns library version */ unsigned vdlGetVersion( void ); /* Opens corresponded video driver and returns handle of associated stream. path - specifies path where drivers are located. name - specifies prefered driver name (can be NULL). cap - specifies driver capability (TYPE_* constants). verbose - specifies verbose level returns !0 if ok else NULL. */ VDL_HANDLE vdlOpen(const char *path,const char *name,unsigned cap,int verbose); /* Closes stream and corresponded driver. */ void vdlClose(VDL_HANDLE ctx); /* Queries driver capabilities. Return 0 if ok else errno */ int vdlGetCapability(VDL_HANDLE, vidix_capability_t *); /* Queries support for given fourcc. Returns 0 if ok else errno */ int vdlQueryFourcc(VDL_HANDLE,vidix_fourcc_t *); /* Returns 0 if ok else errno */ int vdlConfigPlayback(VDL_HANDLE, vidix_playback_t *); /* Returns 0 if ok else errno */ int vdlPlaybackOn(VDL_HANDLE); /* Returns 0 if ok else errno */ int vdlPlaybackOff(VDL_HANDLE); /* Returns 0 if ok else errno */ int vdlPlaybackFrameSelect(VDL_HANDLE, unsigned frame_idx ); /* Returns 0 if ok else errno */ int vdlGetGrKeys(VDL_HANDLE, vidix_grkey_t * ); /* Returns 0 if ok else errno */ int vdlSetGrKeys(VDL_HANDLE, const vidix_grkey_t * ); /* Returns 0 if ok else errno */ int vdlPlaybackGetEq(VDL_HANDLE, vidix_video_eq_t * ); /* Returns 0 if ok else errno */ int vdlPlaybackSetEq(VDL_HANDLE, const vidix_video_eq_t * ); /* Returns 0 if ok else errno */ int vdlPlaybackGetDeint(VDL_HANDLE, vidix_deinterlace_t * ); /* Returns 0 if ok else errno */ int vdlPlaybackSetDeint(VDL_HANDLE, const vidix_deinterlace_t * ); /* Returns 0 if ok else errno */ int vdlQueryNumOemEffects(VDL_HANDLE, unsigned * number ); /* Returns 0 if ok else errno */ int vdlGetOemEffect(VDL_HANDLE, vidix_oem_fx_t * ); /* Returns 0 if ok else errno */ int vdlSetOemEffect(VDL_HANDLE, const vidix_oem_fx_t * ); /* Returns 0 if ok else errno */ int vdlPlaybackCopyFrame(VDL_HANDLE, const vidix_dma_t * ); #ifdef __cplusplus } #endif #endif