From 46bb010ca7c5eb04551c030105f9999ca80e472f Mon Sep 17 00:00:00 2001 From: tobigun Date: Sun, 8 Jun 2008 15:33:48 +0000 Subject: - set svn:eol-style to native - removed some svn:executable properties from non-executable files git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1144 b956fd51-792f-4845-bead-9b4dfca2ff2c --- Game/Code/lib/samplerate/samplerate.pas | 406 ++++++++++++++++---------------- 1 file changed, 203 insertions(+), 203 deletions(-) (limited to 'Game/Code/lib/samplerate') diff --git a/Game/Code/lib/samplerate/samplerate.pas b/Game/Code/lib/samplerate/samplerate.pas index ab163882..3ef78abe 100644 --- a/Game/Code/lib/samplerate/samplerate.pas +++ b/Game/Code/lib/samplerate/samplerate.pas @@ -1,203 +1,203 @@ -{* -** Copyright (C) 2002-2004 Erik de Castro Lopo -** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU General Public License as published by -** the Free Software Foundation; either version 2 of the License, or -** (at your option) any later version. -** -** This program is distributed in the hope that it will be useful, -** but WITHOUT ANY WARRANTY; without even the implied warranty of -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -** GNU General Public License for more details. -** -** You should have received a copy of the GNU General Public License -** along with this program; if not, write to the Free Software -** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. -*} - -{* -** API documentation is available here: -** http://www.mega-nerd.com/SRC/api.html -*} - -unit samplerate; - -{$IFDEF FPC} - {$PACKRECORDS C} (* GCC/Visual C/C++ compatible record packing *) - {$MODE DELPHI} -{$ENDIF} - -interface - -const -{$IFDEF MSWINDOWS} - LibName = 'libsamplerate.dll'; -{$ENDIF} -{$IFDEF LINUX} - LibName = 'samplerate'; -{$ENDIF} -{$IFDEF DARWIN} -// LibName = 'libsamplerate.dylib'; -// {$LINKLIB libsamplerate} -{$ENDIF} - -{ Opaque data type SRC_STATE. } -type - PSRC_STATE = ^SRC_STATE; - SRC_STATE = record - end; - -{ SRC_DATA is used to pass data to src_simple() and src_process(). } -type - PSRC_DATA = ^SRC_DATA; - SRC_DATA = record - data_in: Pdouble; - data_out: Pdouble; - input_frames: longint; - output_frames: longint; - input_frames_used: longint; - output_frames_gen: longint; - end_of_input: integer; - src_ratio: double; - end; - -{ SRC_CB_DATA is used with callback based API. } -type - SRC_CB_DATA = record - frames: longint; - data_in: Psingle; - end; - -type - PPsingle = ^Psingle; - -{* -** User supplied callback function type for use with src_callback_new() -** and src_callback_read(). First parameter is the same pointer that was -** passed into src_callback_new(). Second parameter is pointer to a -** pointer. The user supplied callback function must modify *data to -** point to the start of the user supplied float array. The user supplied -** function must return the number of frames that **data points to. -*} -src_callback_t = function (cb_data: pointer; data: PPsingle): longint; cdecl; - -{* -** Standard initialisation function : return an anonymous pointer to the -** internal state of the converter. Choose a converter from the enums below. -** Error returned in *error. -*} -function src_new(converter_type: integer; channels: integer; error: Pinteger): PSRC_STATE; cdecl; external LibName; - -{* -** Initilisation for callback based API : return an anonymous pointer to the -** internal state of the converter. Choose a converter from the enums below. -** The cb_data pointer can point to any data or be set to NULL. Whatever the -** value, when processing, user supplied function "func" gets called with -** cb_data as first parameter. -*} -function src_callback_new(func: src_callback_t; converter_type: integer; channels: integer; - error: Pinteger; cb_data: pointer): PSRC_STATE; cdecl; external LibName; - -{* -** Cleanup all internal allocations. -** Always returns NULL. -*} -function src_delete(state: PSRC_STATE): PSRC_STATE; cdecl; external LibName; - -{* -** Standard processing function. -** Returns non zero on error. -*} -function src_process(state: PSRC_STATE; data: PSRC_DATA): integer; cdecl; external LibName; - -{* -** Callback based processing function. Read up to frames worth of data from -** the converter int *data and return frames read or -1 on error. -*} -function src_callback_read(state: PSRC_STATE; src_ratio: double; - frames: longint; data: Psingle): longint; cdecl; external LibName; - -{* -** Simple interface for performing a single conversion from input buffer to -** output buffer at a fixed conversion ratio. -** Simple interface does not require initialisation as it can only operate on -** a single buffer worth of audio. -*} -function src_simple(data: PSRC_DATA; converter_type: integer; channels: integer): integer; cdecl; external LibName; - -{* -** This library contains a number of different sample rate converters, -** numbered 0 through N. -** -** Return a string giving either a name or a more full description of each -** sample rate converter or NULL if no sample rate converter exists for -** the given value. The converters are sequentially numbered from 0 to N. -*} -(* Const before type ignored *) -function src_get_name(converter_type: integer): Pchar; cdecl; external LibName; - -(* Const before type ignored *) -function src_get_description(converter_type: integer): Pchar; cdecl; external LibName; - -(* Const before type ignored *) -function src_get_version(): Pchar; cdecl; external LibName; - -{* -** Set a new SRC ratio. This allows step responses -** in the conversion ratio. -** Returns non zero on error. -*} -function src_set_ratio(state: PSRC_STATE; new_ratio: double): integer; cdecl; external LibName; - -{* -** Reset the internal SRC state. -** Does not modify the quality settings. -** Does not free any memory allocations. -** Returns non zero on error. -*} -function src_reset(state: PSRC_STATE): integer; cdecl; external LibName; - -{* -** Return TRUE if ratio is a valid conversion ratio, FALSE -** otherwise. -*} -function src_is_valid_ratio(ratio: double): integer; cdecl; external LibName; - -{* -** Return an error number. -*} -function src_error(state: PSRC_STATE): integer; cdecl; external LibName; - -{* -** Convert the error number into a string. -*} -(* Const before type ignored *) -function src_strerror(error: integer): Pchar; cdecl; external LibName; - -{* -** The following enums can be used to set the interpolator type -** using the function src_set_converter(). -*} -type TConverterType = {enum}integer; const -{enum_begin TConverterType} - SRC_SINC_BEST_QUALITY = 0; - SRC_SINC_MEDIUM_QUALITY = 1; - SRC_SINC_FASTEST = 2; - SRC_ZERO_ORDER_HOLD = 3; - SRC_LINEAR = 4; -{enum_end TConverterType} - -{* -** Extra helper functions for converting from short to float and -** back again. -*} -(* Const before type ignored *) -procedure src_short_to_float_array(input: Psmallint; output: Psingle; len: integer); cdecl; external LibName; - -(* Const before type ignored *) -procedure src_float_to_short_array(input: Psingle; output: Psmallint; len: integer); cdecl; external LibName; - -implementation - -end. +{* +** Copyright (C) 2002-2004 Erik de Castro Lopo +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU General Public License as published by +** the Free Software Foundation; either version 2 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU General Public License for more details. +** +** You should have received a copy of the GNU General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. +*} + +{* +** API documentation is available here: +** http://www.mega-nerd.com/SRC/api.html +*} + +unit samplerate; + +{$IFDEF FPC} + {$PACKRECORDS C} (* GCC/Visual C/C++ compatible record packing *) + {$MODE DELPHI} +{$ENDIF} + +interface + +const +{$IFDEF MSWINDOWS} + LibName = 'libsamplerate.dll'; +{$ENDIF} +{$IFDEF LINUX} + LibName = 'samplerate'; +{$ENDIF} +{$IFDEF DARWIN} +// LibName = 'libsamplerate.dylib'; +// {$LINKLIB libsamplerate} +{$ENDIF} + +{ Opaque data type SRC_STATE. } +type + PSRC_STATE = ^SRC_STATE; + SRC_STATE = record + end; + +{ SRC_DATA is used to pass data to src_simple() and src_process(). } +type + PSRC_DATA = ^SRC_DATA; + SRC_DATA = record + data_in: Pdouble; + data_out: Pdouble; + input_frames: longint; + output_frames: longint; + input_frames_used: longint; + output_frames_gen: longint; + end_of_input: integer; + src_ratio: double; + end; + +{ SRC_CB_DATA is used with callback based API. } +type + SRC_CB_DATA = record + frames: longint; + data_in: Psingle; + end; + +type + PPsingle = ^Psingle; + +{* +** User supplied callback function type for use with src_callback_new() +** and src_callback_read(). First parameter is the same pointer that was +** passed into src_callback_new(). Second parameter is pointer to a +** pointer. The user supplied callback function must modify *data to +** point to the start of the user supplied float array. The user supplied +** function must return the number of frames that **data points to. +*} +src_callback_t = function (cb_data: pointer; data: PPsingle): longint; cdecl; + +{* +** Standard initialisation function : return an anonymous pointer to the +** internal state of the converter. Choose a converter from the enums below. +** Error returned in *error. +*} +function src_new(converter_type: integer; channels: integer; error: Pinteger): PSRC_STATE; cdecl; external LibName; + +{* +** Initilisation for callback based API : return an anonymous pointer to the +** internal state of the converter. Choose a converter from the enums below. +** The cb_data pointer can point to any data or be set to NULL. Whatever the +** value, when processing, user supplied function "func" gets called with +** cb_data as first parameter. +*} +function src_callback_new(func: src_callback_t; converter_type: integer; channels: integer; + error: Pinteger; cb_data: pointer): PSRC_STATE; cdecl; external LibName; + +{* +** Cleanup all internal allocations. +** Always returns NULL. +*} +function src_delete(state: PSRC_STATE): PSRC_STATE; cdecl; external LibName; + +{* +** Standard processing function. +** Returns non zero on error. +*} +function src_process(state: PSRC_STATE; data: PSRC_DATA): integer; cdecl; external LibName; + +{* +** Callback based processing function. Read up to frames worth of data from +** the converter int *data and return frames read or -1 on error. +*} +function src_callback_read(state: PSRC_STATE; src_ratio: double; + frames: longint; data: Psingle): longint; cdecl; external LibName; + +{* +** Simple interface for performing a single conversion from input buffer to +** output buffer at a fixed conversion ratio. +** Simple interface does not require initialisation as it can only operate on +** a single buffer worth of audio. +*} +function src_simple(data: PSRC_DATA; converter_type: integer; channels: integer): integer; cdecl; external LibName; + +{* +** This library contains a number of different sample rate converters, +** numbered 0 through N. +** +** Return a string giving either a name or a more full description of each +** sample rate converter or NULL if no sample rate converter exists for +** the given value. The converters are sequentially numbered from 0 to N. +*} +(* Const before type ignored *) +function src_get_name(converter_type: integer): Pchar; cdecl; external LibName; + +(* Const before type ignored *) +function src_get_description(converter_type: integer): Pchar; cdecl; external LibName; + +(* Const before type ignored *) +function src_get_version(): Pchar; cdecl; external LibName; + +{* +** Set a new SRC ratio. This allows step responses +** in the conversion ratio. +** Returns non zero on error. +*} +function src_set_ratio(state: PSRC_STATE; new_ratio: double): integer; cdecl; external LibName; + +{* +** Reset the internal SRC state. +** Does not modify the quality settings. +** Does not free any memory allocations. +** Returns non zero on error. +*} +function src_reset(state: PSRC_STATE): integer; cdecl; external LibName; + +{* +** Return TRUE if ratio is a valid conversion ratio, FALSE +** otherwise. +*} +function src_is_valid_ratio(ratio: double): integer; cdecl; external LibName; + +{* +** Return an error number. +*} +function src_error(state: PSRC_STATE): integer; cdecl; external LibName; + +{* +** Convert the error number into a string. +*} +(* Const before type ignored *) +function src_strerror(error: integer): Pchar; cdecl; external LibName; + +{* +** The following enums can be used to set the interpolator type +** using the function src_set_converter(). +*} +type TConverterType = {enum}integer; const +{enum_begin TConverterType} + SRC_SINC_BEST_QUALITY = 0; + SRC_SINC_MEDIUM_QUALITY = 1; + SRC_SINC_FASTEST = 2; + SRC_ZERO_ORDER_HOLD = 3; + SRC_LINEAR = 4; +{enum_end TConverterType} + +{* +** Extra helper functions for converting from short to float and +** back again. +*} +(* Const before type ignored *) +procedure src_short_to_float_array(input: Psmallint; output: Psingle; len: integer); cdecl; external LibName; + +(* Const before type ignored *) +procedure src_float_to_short_array(input: Psingle; output: Psmallint; len: integer); cdecl; external LibName; + +implementation + +end. -- cgit v1.2.3