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Diffstat (limited to 'lib/wrappers/sdl/smpeg.nim')
| -rw-r--r-- | lib/wrappers/sdl/smpeg.nim | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/lib/wrappers/sdl/smpeg.nim b/lib/wrappers/sdl/smpeg.nim new file mode 100644 index 000000000..ada0ed57c --- /dev/null +++ b/lib/wrappers/sdl/smpeg.nim @@ -0,0 +1,319 @@ + +#****************************************************************************** +# +# $Id: smpeg.pas,v 1.7 2004/08/14 22:54:30 savage Exp $ +# +# +# +# Borland Delphi SMPEG - SDL MPEG Player Library +# Conversion of the SMPEG - SDL MPEG Player Library +# +# Portions created by Sam Lantinga <slouken@devolution.com> are +# Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga +# 5635-34 Springhouse Dr. +# Pleasanton, CA 94588 (USA) +# +# All Rights Reserved. +# +# The original files are : smpeg.h +# +# The initial developer of this Pascal code was : +# Matthias Thoma <ma.thoma@gmx.de> +# +# Portions created by Matthias Thoma are +# Copyright (C) 2000 - 2001 Matthias Thoma. +# +# +# Contributor(s) +# -------------- +# Tom Jones <tigertomjones@gmx.de> His Project inspired this conversion +# Matthias Thoma <ma.thoma@gmx.de> +# +# Obtained through: +# Joint Endeavour of Delphi Innovators ( Project JEDI ) +# +# You may retrieve the latest version of this file at the Project +# JEDI home page, located at http://delphi-jedi.org +# +# The contents of this file are used with permission, subject to +# the Mozilla Public License Version 1.1 (the "License"); you may +# not use this file except in compliance with the License. You may +# obtain a copy of the License at +# http://www.mozilla.org/MPL/MPL-1.1.html +# +# Software distributed under the License is distributed on an +# "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +# implied. See the License for the specific language governing +# rights and limitations under the License. +# +# Description +# ----------- +# +# +# +# +# +# +# +# Requires +# -------- +# The SDL Runtime libraris on Win32 : SDL.dll on Linux : libSDL-1.2.so.0 +# They are available from... +# http://www.libsdl.org . +# +# Programming Notes +# ----------------- +# +# +# +# +# Revision History +# ---------------- +# May 08 2001 - MT : Initial conversion +# +# October 12 2001 - DA : Various changes as suggested by David Acklam +# +# April 03 2003 - DL : Added jedi-sdl.inc include file to support more +# Pascal compilers. Initial support is now included +# for GnuPascal, VirtualPascal, TMT and obviously +# continue support for Delphi Kylix and FreePascal. +# +# April 08 2003 - MK : Aka Mr Kroket - Added Better FPC support +# Fixed all invalid calls to DLL. +# Changed constant names to: +# const +# STATUS_SMPEG_ERROR = -1; +# STATUS_SMPEG_STOPPED = 0; +# STATUS_SMPEG_PLAYING = 1; +# because SMPEG_ERROR is a function (_SMPEG_error +# isn't correct), and cannot be two elements with the +# same name +# +# April 24 2003 - DL : under instruction from Alexey Barkovoy, I have added +# better TMT Pascal support and under instruction +# from Prof. Abimbola Olowofoyeku (The African Chief), +# I have added better Gnu Pascal support +# +# April 30 2003 - DL : under instruction from David Mears AKA +# Jason Siletto, I have added FPC Linux support. +# This was compiled with fpc 1.1, so remember to set +# include file path. ie. -Fi/usr/share/fpcsrc/rtl/* +# +# +# $Log: smpeg.pas,v $ +# Revision 1.7 2004/08/14 22:54:30 savage +# Updated so that Library name defines are correctly defined for MacOS X. +# +# Revision 1.6 2004/05/10 14:10:04 savage +# Initial MacOS X support. Fixed defines for MACOS ( Classic ) and DARWIN ( MacOS X ). +# +# Revision 1.5 2004/04/13 09:32:08 savage +# Changed Shared object names back to just the .so extension to avoid conflicts on various Linux/Unix distros. Therefore developers will need to create Symbolic links to the actual Share Objects if necessary. +# +# Revision 1.4 2004/04/02 10:40:55 savage +# Changed Linux Shared Object name so they reflect the Symbolic Links that are created when installing the RPMs from the SDL site. +# +# Revision 1.3 2004/03/31 22:20:02 savage +# Windows unit not used in this file, so it was removed to keep the code tidy. +# +# Revision 1.2 2004/03/30 20:23:28 savage +# Tidied up use of UNIX compiler directive. +# +# Revision 1.1 2004/02/14 23:35:42 savage +# version 1 of sdl_image, sdl_mixer and smpeg. +# +# +# +#****************************************************************************** + +import + sdl + +when defined(windows): + const SmpegLibName = "smpeg.dll" +elif defined(macosx): + const SmpegLibName = "libsmpeg.dylib" +else: + const SmpegLibName = "libsmpeg.so" + +const + SMPEG_FILTER_INFO_MB_ERROR* = 1 + SMPEG_FILTER_INFO_PIXEL_ERROR* = 2 # Filter info from SMPEG + +type + SMPEG_FilterInfo*{.final.} = object + yuv_mb_square_error*: PUint16 + yuv_pixel_square_error*: PUint16 + + TSMPEG_FilterInfo* = SMPEG_FilterInfo + PSMPEG_FilterInfo* = ptr SMPEG_FilterInfo # MPEG filter definition + PSMPEG_Filter* = ptr TSMPEG_Filter # Callback functions for the filter + TSMPEG_FilterCallback* = proc (dest, source: PSDL_Overlay, region: PSDL_Rect, + filter_info: PSMPEG_FilterInfo, data: Pointer): Pointer{. + cdecl.} + TSMPEG_FilterDestroy* = proc (Filter: PSMPEG_Filter): Pointer{.cdecl.} # The filter + # definition itself + TSMPEG_Filter*{.final.} = object # The null filter (default). It simply copies the source rectangle to the video overlay. + flags*: Uint32 + data*: Pointer + callback*: TSMPEG_FilterCallback + destroy*: TSMPEG_FilterDestroy + + +proc SMPEGfilter_null*(): PSMPEG_Filter{.cdecl, importc, dynlib: SmpegLibName.} + # The bilinear filter. A basic low-pass filter that will produce a smoother image. +proc SMPEGfilter_bilinear*(): PSMPEG_Filter{.cdecl, importc, dynlib: SmpegLibName.} + # The deblocking filter. It filters block borders and non-intra coded blocks to reduce blockiness +proc SMPEGfilter_deblocking*(): PSMPEG_Filter{.cdecl, importc, dynlib: SmpegLibName.} + #------------------------------------------------------------------------------ + # SMPEG.h + #------------------------------------------------------------------------------ +const + SMPEG_MAJOR_VERSION* = 0'i8 + SMPEG_MINOR_VERSION* = 4'i8 + SMPEG_PATCHLEVEL* = 2'i8 + +type + SMPEG_version*{.final.} = object + major*: UInt8 + minor*: UInt8 + patch*: UInt8 + + TSMPEG_version* = SMPEG_version + PSMPEG_version* = ptr TSMPEG_version # This is the actual SMPEG object + TSMPEG*{.final.} = object + PSMPEG* = ptr TSMPEG # Used to get information about the SMPEG object + TSMPEG_Info*{.final.} = object + has_audio*: int + has_video*: int + width*: int + height*: int + current_frame*: int + current_fps*: float64 + audio_string*: array[0..79, char] + audio_current_frame*: int + current_offset*: UInt32 + total_size*: UInt32 + current_time*: float64 + total_time*: float64 + + PSMPEG_Info* = ptr TSMPEG_Info # Possible MPEG status codes + +const + STATUS_SMPEG_ERROR* = - 1 + STATUS_SMPEG_STOPPED* = 0 + STATUS_SMPEG_PLAYING* = 1 + +type + TSMPEGstatus* = int + PSMPEGstatus* = ptr int # Matches the declaration of SDL_UpdateRect() + TSMPEG_DisplayCallback* = proc (dst: PSDL_Surface, x, y: int, w, h: int): Pointer{. + cdecl.} # Create a new SMPEG object from an MPEG file. + # On return, if 'info' is not NULL, it will be filled with information + # about the MPEG object. + # This function returns a new SMPEG object. Use SMPEG_error() to find out + # whether or not there was a problem building the MPEG stream. + # The sdl_audio parameter indicates if SMPEG should initialize the SDL audio + # subsystem. If not, you will have to use the SMPEG_playaudio() function below + # to extract the decoded data. + +proc SMPEG_new*(theFile: cstring, info: PSMPEG_Info, sdl_audio: int): PSMPEG{. + cdecl, importc, dynlib: SmpegLibName.} + # The same as above for a file descriptor +proc SMPEG_new_descr*(theFile: int, info: PSMPEG_Info, sdl_audio: int): PSMPEG{. + cdecl, importc, dynlib: SmpegLibName.} + # The same as above but for a raw chunk of data. SMPEG makes a copy of the + # data, so the application is free to delete after a successful call to this + # function. +proc SMPEG_new_data*(data: Pointer, size: int, info: PSMPEG_Info, sdl_audio: int): PSMPEG{. + cdecl, importc, dynlib: SmpegLibName.} + # Get current information about an SMPEG object +proc SMPEG_getinfo*(mpeg: PSMPEG, info: PSMPEG_Info){.cdecl, + importc, dynlib: SmpegLibName.} + #procedure SMPEG_getinfo(mpeg: PSMPEG; info: Pointer); + #cdecl; external SmpegLibName; + # Enable or disable audio playback in MPEG stream +proc SMPEG_enableaudio*(mpeg: PSMPEG, enable: int){.cdecl, importc, dynlib: SmpegLibName.} + # Enable or disable video playback in MPEG stream +proc SMPEG_enablevideo*(mpeg: PSMPEG, enable: int){.cdecl, importc, dynlib: SmpegLibName.} + # Delete an SMPEG object +proc SMPEG_delete*(mpeg: PSMPEG){.cdecl, importc, dynlib: SmpegLibName.} + # Get the current status of an SMPEG object +proc SMPEG_status*(mpeg: PSMPEG): TSMPEGstatus{.cdecl, importc, dynlib: SmpegLibName.} + # status + # Set the audio volume of an MPEG stream, in the range 0-100 +proc SMPEG_setvolume*(mpeg: PSMPEG, volume: int){.cdecl, importc, dynlib: SmpegLibName.} + # Set the destination surface for MPEG video playback + # 'surfLock' is a mutex used to synchronize access to 'dst', and can be NULL. + # 'callback' is a function called when an area of 'dst' needs to be updated. + # If 'callback' is NULL, the default function (SDL_UpdateRect) will be used. +proc SMPEG_setdisplay*(mpeg: PSMPEG, dst: PSDL_Surface, surfLock: PSDL_mutex, + callback: TSMPEG_DisplayCallback){.cdecl, + importc, dynlib: SmpegLibName.} + # Set or clear looping play on an SMPEG object +proc SMPEG_loop*(mpeg: PSMPEG, repeat_: int){.cdecl, importc, dynlib: SmpegLibName.} + # Scale pixel display on an SMPEG object +proc SMPEG_scaleXY*(mpeg: PSMPEG, width, height: int){.cdecl, + importc, dynlib: SmpegLibName.} +proc SMPEG_scale*(mpeg: PSMPEG, scale: int){.cdecl, importc, dynlib: SmpegLibName.} +proc SMPEG_Double*(mpeg: PSMPEG, doubleit: bool) + # Move the video display area within the destination surface +proc SMPEG_move*(mpeg: PSMPEG, x, y: int){.cdecl, importc, dynlib: SmpegLibName.} + # Set the region of the video to be shown +proc SMPEG_setdisplayregion*(mpeg: PSMPEG, x, y, w, h: int){.cdecl, + importc, dynlib: SmpegLibName.} + # Play an SMPEG object +proc SMPEG_play*(mpeg: PSMPEG){.cdecl, importc, dynlib: SmpegLibName.} + # Pause/Resume playback of an SMPEG object +proc SMPEG_pause*(mpeg: PSMPEG){.cdecl, importc, dynlib: SmpegLibName.} + # Stop playback of an SMPEG object +proc SMPEG_stop*(mpeg: PSMPEG){.cdecl, importc, dynlib: SmpegLibName.} + # Rewind the play position of an SMPEG object to the beginning of the MPEG +proc SMPEG_rewind*(mpeg: PSMPEG){.cdecl, importc, dynlib: SmpegLibName.} + # Seek 'bytes' bytes in the MPEG stream +proc SMPEG_seek*(mpeg: PSMPEG, bytes: int){.cdecl, importc, dynlib: SmpegLibName.} + # Skip 'seconds' seconds in the MPEG stream +proc SMPEG_skip*(mpeg: PSMPEG, seconds: float32){.cdecl, importc, dynlib: SmpegLibName.} + # Render a particular frame in the MPEG video + # API CHANGE: This function no longer takes a target surface and position. + # Use SMPEG_setdisplay() and SMPEG_move() to set this information. +proc SMPEG_renderFrame*(mpeg: PSMPEG, framenum: int){.cdecl, + importc, dynlib: SmpegLibName.} + # Render the last frame of an MPEG video +proc SMPEG_renderFinal*(mpeg: PSMPEG, dst: PSDL_Surface, x, y: int){.cdecl, + importc, dynlib: SmpegLibName.} + # Set video filter +proc SMPEG_filter*(mpeg: PSMPEG, filter: PSMPEG_Filter): PSMPEG_Filter{.cdecl, + importc, dynlib: SmpegLibName.} + # Return NULL if there is no error in the MPEG stream, or an error message + # if there was a fatal error in the MPEG stream for the SMPEG object. +proc SMPEG_error*(mpeg: PSMPEG): cstring{.cdecl, importc, dynlib: SmpegLibName.} + # Exported callback function for audio playback. + # The function takes a buffer and the amount of data to fill, and returns + # the amount of data in bytes that was actually written. This will be the + # amount requested unless the MPEG audio has finished. + # +proc SMPEG_playAudio*(mpeg: PSMPEG, stream: PUInt8, length: int): int{.cdecl, + importc, dynlib: SmpegLibName.} + # Wrapper for SMPEG_playAudio() that can be passed to SDL and SDL_mixer +proc SMPEG_playAudioSDL*(mpeg: Pointer, stream: PUInt8, length: int){.cdecl, + importc, dynlib: SmpegLibName.} + # Get the best SDL audio spec for the audio stream +proc SMPEG_wantedSpec*(mpeg: PSMPEG, wanted: PSDL_AudioSpec): int{.cdecl, + importc, dynlib: SmpegLibName.} + # Inform SMPEG of the actual SDL audio spec used for sound playback +proc SMPEG_actualSpec*(mpeg: PSMPEG, spec: PSDL_AudioSpec){.cdecl, + importc, dynlib: SmpegLibName.} + # This macro can be used to fill a version structure with the compile-time + # version of the SDL library. +proc SMPEG_GETVERSION*(X: var TSMPEG_version) +# implementation + +proc SMPEG_double(mpeg: PSMPEG, doubleit: bool) = + if doubleit: SMPEG_scale(mpeg, 2) + else: SMPEG_scale(mpeg, 1) + +proc SMPEG_GETVERSION(X: var TSMPEG_version) = + X.major = SMPEG_MAJOR_VERSION + X.minor = SMPEG_MINOR_VERSION + X.patch = SMPEG_PATCHLEVEL |