Print Page - How know the long(duration) of .wav files, before play it?¿

Title: How know the long(duration) of .wav files, before play it?¿
Post by: mentalthink on 2011-Sep-22

Well, I like if this it´s possible, how long in time it´s a audio file, before play it. I like to extract or know the duration ifo about the files witout playing them. This it´s possible witout inline... if not, someone can help me in the code. :enc: :enc:

Thanks in advance.
Iván J.

Title: Re: How know the long(duration) of .wav files, before play it?¿
Post by: Kitty Hello on 2011-Sep-22

samples/_Projects_/WaveIn:

Code (glbasic) Select



// parse the WAV file and get the play time in [ms]
FUNCTION WaveGetDuration: channel%, filename$
LOCAL val%, byte_per_sec%, contentlen%
	IF OPENFILE(channel, filename$, TRUE)=FALSE THEN RETURN 0
	READLONG channel, val // RIFF
	READLONG channel, val // size
	READLONG channel, val // WAVE
	READLONG channel, val // FMT
	READLONG channel, val // dw16 (must be 16, otherwise compressed)
	READWORD channel, val // wOne_0 = 1
	READWORD channel, val // channels
	READLONG channel, val // sample rate [Hz]
	READLONG channel, byte_per_sec // bytes per second
	READWORD channel, val // block align =1
	READWORD channel, val // bits per sample (8/16)
	READLONG channel, val // DATA
	READLONG channel, contentlen
	CLOSEFILE channel

	RETURN 1000*contentlen/byte_per_sec

ENDFUNCTION

Title: Re: How know the long(duration) of .wav files, before play it?¿
Post by: mentalthink on 2011-Sep-22

Thanks Gernnot, a lot.
Kinds Regards,
Iván J.

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Main forum => GLBasic - en => Topic started by: mentalthink on 2011-Sep-22