Batch converting FLV to MP4. Please Help

[atredis91]

I have lots of FLV files that I would like to batch convert but I am having issues. The audio codec is nellymoser so a lot of the programs i have tried do not work. I have purchased movavi video converter but the process is still to slow. I don't really want to have to convert all my files as they will lose quality i just want to change the video container. I have also tried having a play around with FFMEG but I am a bit of a newbie with this software. Hope someone can help.

[Selur]

assuming libav can handle nellymoser audio, Hybrid could be used to do the deed,...

[Baldrick]

Does mp4 support that audio codec? Or you could just reconvert the audio and copy the video.

Have you tried any ffmpeg frontends like avanti or hybrid?

Or use a bat file with ffmpeg:

for %%a in ("*.flv") do ffmpeg -i "%%a" -vcodec copy -acodec copy "newfiles\%%~na.mp4"
pause

See https://forum.videohelp.com/threads/356314-How-to-batch-convert-multiplex-any-files-with-ffmpeg

[Selur]

Does mp4 support that audio codec?

Nope. using ffmpeg wit acodec copy would be a bad idea.

[stax76]

Best solution is IMO remuxing to MKV!

[Selur]

Are you sure mkv supports nellymoser ?

[stax76]

I don't know, probably best to just leave it as is.