[FFmpeg-user] Ffmpeg Concat Images failure

[Vivek Jain]

hey Nicolas/Cley,

Thanks for correction. Image formats were getting destroyed due to some
optimisations/compressions done on them via a 3rd party service.
Would you know if ffmpeg provides any utility to convert a pdf into images
which could then be fed to create slideshow video?

On Sat, Jul 9, 2016 at 7:22 PM, Vivek Jain <vivek.jain at mindtickle.com>
wrote:

> Thank you Nicolas and Cley. Much appreciate your help..
>
> On Sat, Jul 9, 2016 at 7:04 PM, Nicolas George <george at nsup.org> wrote:
>
>> Le duodi 22 messidor, an CCXXIV, Cley Faye a écrit :
>> > > Below is the output. I see the below 2 files which errors out are PNG
>> > > whereas others are JPEG. I guess that's an issue?
>> >
>> > I'm still learning about ffmpeg, but what I know is that concat expect
>> all
>> > the files to have roughly the same layout and codecs. As it is, it is
>> > decoding all your files using what's found in the first file (a jpeg),
>> so
>> > all your files must be jpegs.
>> > The same thing happen if you use concat with multiple files with
>> clashing
>> > audio settings (different rates, different channel layouts, etc): the
>> > output is garbled (or just fail to process).
>> >
>> > Also, although it doesn't matter here, you might want to avoid naming
>> your
>> > files ".png" if they really are jpegs...
>>
>> That would have been almost exactly my answer. That was in fact the issue
>> I
>> suspected when asking for the file output.
>>
>> I would suggest to re-generate all the files as actual PNGs, since PNG is
>> lossless.
>>
>> Regards,
>>
>> --
>>   Nicolas George
>>
>> _______________________________________________
>> ffmpeg-user mailing list
>> ffmpeg-user at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>
>> To unsubscribe, visit link above, or email
>> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".
>>
>
>
>
> --
> Thanks,
> Vivek
>



-- 
Thanks,
Vivek