-acodec copy does not copy wav file correctly (at least with with pcm_s24le )

[NabilStendardo]

What we have:

An audio file encoded in wav pcm_s24le(let us call it a.wav) from the output of a previous ffmpeg command.

What we want:
To execute:

$ffmpeg -i a.wav -acodec copy b.wav

and have an identical (and valid) wav file.

What we get with cmp:

$cmp -b a.wav b.wav

a.wav b.wav differ: byte 39, line 1 is 30 ^{X 0} @

Of course 30 is octal for 24, which is the expected value from the first file (bits per sample). 0 here is clearly wrong. Note that b.wav does not play under gstreamer (which is somewhat normal because it is AFACT invalid)

[Carl Eugen Hoyos]

Please add the complete, uncut output of your ffmpeg command.

[Michael Niedermayer]

fixed locally will push soon