10-21-2010
Maybe it's my english which is too bad ... i think i just don't understand the sentence in the same way than you:
when he wrote "Line 10", i thought it was a typo error and that we should read "char 10" instead (indeed, that was matching the sample he gave)
By the way, i read the bold line and he explicitly talk about 4 length, he never specified it could be larger .
Or am I missunderstanding something ?
I understood he wanted to count the number of BELL occurence appearing in field starting at char 10 and have a length of 4
(just as it appear in his example).
I didn't figure his problem was about having BELLLLLLLLLLLLL occurrence (if so, i suppose he would have put such an entry in the sample)
You are true that my code does not handle with BELLLLLLLLLLLLL : it count them as if it were a BELL one.
I just assumed that his input file was a file formatted the same way than the sample he gave.
Last edited by ctsgnb; 10-21-2010 at 12:36 PM..
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LEARN ABOUT CENTOS
afgetframecount
AFGETFRAMECOUNT(3) AFGETFRAMECOUNT(3)
NAME
afGetFrameCount, afGetTrackBytes, afGetDataOffset - get the total sample frame count, length of audio track in bytes, offset of the audio
track for a track in an audio file
SYNOPSIS
#include <audiofile.h>
AFframecount afGetFrameCount (AFfilehandle file, int track);
AFfileoffset afGetTrackBytes (AFfilehandle file, int track);
AFfileoffset afGetDataOffset (AFfilehandle file, int track);
PARAMETERS
file is an audio file handle created by a previous call to afOpenFile(3).
track is an integer which specifies an audio track within file. All supported file formats contain exactly one audio track per file, so the
constant AF_DEFAULT_TRACK should always be used.
DESCRIPTION
afGetFrameCount returns the total number of sample frames contained within the specified track of the specified file.
Each sample frame of audio consists of a fixed number of samples (equal to the number of audio channels in the track. For monaural data, a
sample frame consists of one audio sample. For stereophonic data, a sample frame consists of a stereo pair.
afGetTrackBytes returns the total number of bytes of raw audio data (i.e., prior to decompression or conversion) in the track.
afGetDataOffset returns the offset in bytes of the start of the audio data contained within the specified track of the specified file.
RETURN VALUE
afGetFrameCount returns the total number of sample frames in track.
afGetTrackBytes returns the total number of bytes of audio data in track.
afGetDataOffset returns the offset in bytes to the beginning of the audio data in track.
Each of these routines returns -1 in case of error.
AUTHOR
Michael Pruett <michael@68k.org>
Audio File Library 0.3.6 03/06/2013 AFGETFRAMECOUNT(3)