WildMidi_GetInfo3

Usage

Library

libWildMidi

Overview

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;
   uint32_t current_sample;
   uint32_t approx_total_samples;
   uint32_t total_midi_time;
   uint16_t mixer_options;
   uint32_t 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.