[FFmpeg-user] FLV --> MP4 Conversion Audio/Video Out of Sync

[Leo Papadopoulos]

Dear Group:

The mailing list did not let me attach the FLV because it is too big, so I
am providing a link where you can download it:
https://docs.google.com/open?id=0B_lwz8YWXmRAcFN6VExqSDJCbmM

I converted it to an MP4 using the command:
ffmpeg -i telecomcto.flv -c:v copy -c:a aac -strict -2 -b:a 64k -ar 44100
-ac 1 telecomctotest.mp4

 I have not figured out how to get the audio to be in sync with the video.

I have tried to use the -itsoffset flag but it does not seem to do
anything. Is itsoffset the path I should take? Or is my problem related to
the "PTS < DTS invalid clipping"?

Leo P.


On Sat, Dec 22, 2012 at 11:50 PM, Leo Papadopoulos <leo at telecomcto.com>wrote:

> Carl:
>
> Thanks for responding. Here is the original .FLV file that you requested.
> I converted it to an MP4 using the command:
> ffmpeg -i telecomcto.flv -c:v copy -c:a aac -strict -2 -b:a 64k -ar 44100
> -ac 1 telecomctotest.mp4
>
>  I have not figured out how to get the audio to be in sync with the video.
>
> Leo P.
>
>
> On Sat, Dec 22, 2012 at 4:35 PM, Carl Eugen Hoyos <cehoyos at ag.or.at>wrote:
>
>> Leo Papadopoulos <leo <at> telecomcto.com> writes:
>>
>> > I was able to convert my FLV(Speex+h264) to MP4(AAC+h264)
>> > and the file plays on all my devices. However I get the
>> > following errors and audio plays 1 second later than the
>> > video.
>>
>> Please provide the input sample.
>>
>> Carl Eugen
>>
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>>
>>
>
>
> --
> _________________________________________
> Leo Papadopoulos (leo at telecomcto.com)
> TelecomCTO, LLC <http://telecomcto.com>
> Virtual Number: +1(203)539-0448
> Linkedin <https://www.linkedin.com/in/leopapadopoulos> - Twitter<https://twitter.com/LeoP_TCTO>
>



-- 
_________________________________________
Leo Papadopoulos (leo at telecomcto.com)
TelecomCTO, LLC <http://telecomcto.com>
Virtual Number: +1(203)539-0448
Linkedin <https://www.linkedin.com/in/leopapadopoulos> -
Twitter<https://twitter.com/LeoP_TCTO>