[FFmpeg-user] How to mitigate stream 1 decoding error?

Bernard Barton Jr. zbernie at icloud.com
Tue Apr 9 02:54:38 CEST 2013

Yes, the m4a file contains album artwork, which ffmpeg is detecting.  I get an error when I try to output a jpg file.  But your suggestion to disable the png decoder sounds accurate.  However, I just read the man page, and do not see how to disable the png decoder.

Can you please explain how this accomplished?

On Apr 8, 2013, at 7:16 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> Bernard Barton Jr. <zbernie <at> icloud.com> writes:
>> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '02 Have 
>> Yourself A Merry Little Christmas.m4a':
>>    Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 
>> 44100 Hz, stereo, fltp, 281 kb/s
>>    Metadata:
>>      creation_time   : 2011-07-26 04:49:15
>>    Stream #0:1: Video: png, 90k tbr, 90k tbn, 90k tbc
> It appears that the mov file contains an image (thumbnail) 
> that FFmpeg cannot read (or does ffmpeg -i 02.m4a out.jpg 
> work?), consider providing the sample.
> (If you really only want to silence the warning, you 
> probably have to disable the png decoder.)
> Carl Eugen
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