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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3 | pmbaty | 1 | /* |
| 2 | SMPEG - SDL MPEG Player Library |
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| 3 | Copyright (C) 1999 Loki Entertainment Software |
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| 4 | |||
| 5 | This library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Library General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2 of the License, or (at your option) any later version. |
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| 9 | |||
| 10 | This library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Library General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU Library General Public |
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| 16 | License along with this library; if not, write to the Free |
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| 17 | Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 18 | */ |
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| 19 | |||
| 20 | /* MPEG filters */ |
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| 21 | |||
| 22 | #ifndef _MPEGFILTER_H_ |
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| 23 | #define _MPEGFILTER_H_ |
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| 24 | |||
| 25 | /* SMPEG filter info flags */ |
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| 26 | #define SMPEG_FILTER_INFO_MB_ERROR 1 |
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| 27 | #define SMPEG_FILTER_INFO_PIXEL_ERROR 2 |
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| 28 | |||
| 29 | /* Filter info from SMPEG */ |
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| 30 | typedef struct SMPEG_FilterInfo { |
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| 31 | Uint16* yuv_mb_square_error; |
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| 32 | Uint16* yuv_pixel_square_error; |
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| 33 | } SMPEG_FilterInfo; |
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| 34 | |||
| 35 | /* MPEG filter definition */ |
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| 36 | struct SMPEG_Filter; |
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| 37 | |||
| 38 | /* Callback functions for the filter */ |
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| 39 | typedef void (* SMPEG_FilterCallback)( SDL_Overlay * dest, SDL_Overlay * source, SDL_Rect * region, SMPEG_FilterInfo * filter_info, void * data ); |
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| 40 | typedef void (* SMPEG_FilterDestroy)( struct SMPEG_Filter * filter ); |
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| 41 | |||
| 42 | /* The filter definition itself */ |
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| 43 | typedef struct SMPEG_Filter { |
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| 44 | Uint32 flags; |
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| 45 | void * data; |
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| 46 | SMPEG_FilterCallback callback; |
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| 47 | SMPEG_FilterDestroy destroy; |
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| 48 | } SMPEG_Filter; |
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| 49 | |||
| 50 | /* SMPEG built-in filters. */ |
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| 51 | #ifdef __cplusplus |
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| 52 | extern "C" { |
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| 53 | #endif |
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| 54 | |||
| 55 | /* The null filter (default). It simply copies the source rectangle to the video overlay. */ |
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| 56 | extern DECLSPEC SMPEG_Filter * SMPEGfilter_null(void); |
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| 57 | |||
| 58 | /* The bilinear filter. A basic low-pass filter that will produce a smoother image. */ |
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| 59 | extern DECLSPEC SMPEG_Filter * SMPEGfilter_bilinear(void); |
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| 60 | |||
| 61 | /* The deblocking filter. It filters block borders and non-intra coded blocks to reduce blockiness */ |
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| 62 | extern DECLSPEC SMPEG_Filter * SMPEGfilter_deblocking(void); |
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| 63 | |||
| 64 | #ifdef __cplusplus |
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| 65 | }; |
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| 66 | #endif |
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| 67 | #endif /* _MPEGFILTER_H_ */ |