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Man Pages


Manual Reference Pages  -  WILDMIDI_GETINFO (3)

NAME

WildMidi_GetInfo - get information on a midi

CONTENTS

Library
Synopsis
Description
Return Value
See Also
Author
Copyright

LIBRARY

libWildMidi

SYNOPSIS

#include <wildmidi_lib.h>

struct _WM_Info *WildMidi_GetInfo (midi *handle);

DESCRIPTION

Obtains information allowing you to determine song position, current options, and any copyright information.

handle The identifier obtained from opening a midi file with WildMidi_Open(3) or WildMidi_OpenBuffer(3)

RETURN VALUE

On error returns NULL with an error message displayed to stderr.

Otherwise returns a pointer to a struct containing the information.

struct _WM_Info {
   char *copyright;
   unsigned long int current_sample;
   unsigned long int approx_total_samples;
   unsigned long int total_midi_time;
   unsigned short int mixer_options;
   unsigned long int total_midi_time;
};

copyright A pointer to a \0 terminated string containing any copyright MIDI events found while processing the MIDI file handle refers to. If more than one copyright event was found then each one is separated by \n
If copyright is NULL then no copyright MIDI events were found.
current_sample This is the number of stereo samples libWildMidi has processed for the MIDI file referred to by handle. You can use this value to determine the current playing time by dividing this value by the rate given when libWildMidi was initialized by WildMidi_Init(3).
approx_total_samples This is the total number of stereo samples libWildMidi expects to process. This can be used to obtain the total playing time by dividing this value by the rate given when libWildMidi was initialized by WildMidi_Init(3). Also when you divide current_sample by this value and multiplying by 100, you have the percentage currently processed.
total_midi_time This is the total time of MIDI events in 1/1000’s of a second. It differs from approx_total_samples in that it only states the total time within the MIDI file and does not take into account the extra bit of time to finish playing sampling smoothly.
mixer_options
WM_MO_LOG_VOLUME Using curved volume settings instead of linear ones.
WM_MO_ENHANCED_RESAMPLING The enhanced resampler is active
WM_MO_REVERB Reverb is being added to the final output.

SEE ALSO

WildMidi_GetString(3) , WildMidi_Init(3) , WildMidi_MasterVolume(3) , WildMidi_Open(3) , WildMidi_OpenBuffer(3) , WildMidi_SetOption(3) , WildMidi_GetOutput(3) , WildMidi_FastSeek(3) , WildMidi_Close(3) , WildMidi_Shutdown(3) , wildmidi.cfg(5)

AUTHOR

Chris Ison <wildcode@users.sf.net> Bret Curtis <psi29a@gmail.com>

COPYRIGHT

Copyright (C) Chris Ison 2001-2010 Copyright (C) Bret Curtis 2013-2014

This file is part of WildMIDI.

WildMIDI is free software: you can redistribute and/or modify the player under the terms of the GNU General Public License and you can redistribute and/or modify the library under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the licenses, or(at your option) any later version.

WildMIDI 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 and the GNU Lesser General Public License for more details.

You should have received a copy of the GNU General Public License and the GNU Lesser General Public License along with WildMIDI. If not, see <http://www.gnu.org/licenses/>.

This manpage is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.

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WILDMIDI_GETINFO (3) 27 February 2014

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