zuzu-typ / pywave Goto Github PK

While the seek function does seem to work to navigate around a file, it does not seem to update the data_position pointer. As such PyWave.Tell() provides an incorrect file position.

To recreate..

rb = pw.open(inWav,'r') #open a read only wav file 
print("pos = " + str(rb.tell()))                 # displays                    "Pos =  0"; good
dat1 = rb.read_samples(10)                       #read 10 samples
print("pos = " + str(rb.tell()))                 # displays                    "Pos =  10"; good
rb.seek(10,1)                                    #skip forward 10 samples
print("pos = " + str(rb.tell()))                 # displays                   "Pos =  10"; should display "Pos = 20"

Hi Zuzu-Typ,

Can I ask what your plans are with this mod? There is also a WavFile reader and writer in SciPy (https://docs.scipy.org/doc/scipy/reference/generated/scipy.io.wavfile.read.html) that does part of this. They have a rather large community but change requests can take years. They're also focused on just reading/writing and less on metadata support.

I'd like to add some stuff, notably ChannelMask and speaker layouts, 24-bit support, and normalization support (the latter taken from SciPy.wavfile). My main interest is that I can: read all current formats I have on my harddisk (96Khz/24 bit, 32 bit floating point, 8-32 bit fixed), read and copy all metadata if required for a 100% accurate copy, and display normalized data on a (real time) plot.

If you don't want that, it's cool. But if you agree, I'll add a few pull requests here and there over the coming weeks.

Cheers,
Ronald.