| 0,0 → 1,119 |
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| /* ----------------------------- MNI Header ----------------------------------- |
| @NAME : mpeg.h |
| @INPUT : |
| @OUTPUT : |
| @RETURNS : |
| @DESCRIPTION: Types and function prototypes needed for applications to |
| use the Berkely MPEG decoding engine via the MNI front |
| end. |
| @METHOD : |
| @GLOBALS : Types defined: |
| ImageDesc - structure giving height, width, etc. |
| DitherEnum - the different dither types supported by |
| the decoding engine |
| @CALLS : |
| @CREATED : Greg Ward, 94/6/16. |
| @MODIFIED : Greg Ward, 94/9/12 (based on John Cristy's fixes): made |
| more amenable to use with other libraries that also |
| happen to define TRUE, FALSE, [Bb]oolean, and added |
| PROTO macro |
| ---------------------------------------------------------------------------- */ |
| |
| #ifndef __MPEG_H |
| #define __MPEG_H |
| |
| #include <stdio.h> |
| |
| /* An attempt at a portable and integrable boolean type... */ |
| |
| #if (!defined(TRUE) || !defined(FALSE)) |
| # define TRUE 1 |
| # define FALSE 0 |
| #endif |
| |
| #if (!defined (BOOLEAN_TYPE_EXISTS)) |
| typedef unsigned int Boolean; |
| #endif |
| |
| typedef struct |
| { |
| short red, green, blue; |
| } ColormapEntry; |
| |
| typedef struct |
| { |
| int Height; /* in pixels */ |
| int Width; |
| int Depth; /* image depth (bits) */ |
| int PixelSize; /* bits actually stored per pixel */ |
| int Size; /* bytes for whole image */ |
| int BitmapPad; /* "quantum" of a scanline -- each scanline */ |
| /* starts on an even interval of this */ |
| /* many bits */ |
| int PictureRate; /* required number of frames/sec [?] */ |
| int BitRate; /* ??? */ |
| |
| int ColormapSize; |
| ColormapEntry *Colormap; /* an array of ColormapSize entries */ |
| } ImageDesc; |
| |
| typedef enum |
| { |
| HYBRID_DITHER, |
| HYBRID2_DITHER, |
| FS4_DITHER, |
| FS2_DITHER, |
| FS2FAST_DITHER, |
| Twox2_DITHER, |
| GRAY_DITHER, |
| FULL_COLOR_DITHER, |
| NO_DITHER, |
| ORDERED_DITHER, |
| MONO_DITHER, |
| MONO_THRESHOLD, |
| ORDERED2_DITHER, |
| MBORDERED_DITHER |
| } DitherEnum; |
| |
| |
| typedef enum |
| { |
| MPEG_DITHER, |
| MPEG_QUIET, |
| MPEG_LUM_RANGE, |
| MPEG_CR_RANGE, |
| MPEG_CB_RANGE, |
| MPEG_CMAP_INDEX |
| } MPEGOptionEnum; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * Kludge so we can compile under ANSI or K&R. (This only means |
| * that programs that *use* mpeg_lib can be compiled with K&R; |
| * the library itself must be compiled with an ANSI compiler. |
| * Mixing and matching compilers, BTW, is not a good idea...) |
| */ |
| #undef PROTO |
| #if __STDC__ || __cplusplus |
| #define PROTO(formal_parameters) formal_parameters |
| #else |
| #define const |
| #define PROTO(formal_parameters) () |
| #endif |
| |
| /* Function prototypes (all are defined in wrapper.c) */ |
| |
| Boolean OpenMPEG PROTO((FILE *MPEGfile, ImageDesc *ImgInfo)); |
| void CloseMPEG PROTO((void)); |
| Boolean RewindMPEG PROTO((FILE *MPEGfile, ImageDesc *Image)); |
| void SetMPEGOption PROTO((MPEGOptionEnum Option, int value)); |
| Boolean GetMPEGFrame PROTO((char *Frame)); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __MPEG_H */ |