GUI ways to Select + Batch process/ convert formats Videos in folder trees?

[insight]

GUI ways to Select + Batch process/ convert formats Videos in folder trees?

* But I'd like to preferably run a BATCH of VIDEOS in Folder Trees through this process.

* I will be doing it "small collections" at a time, would like to have visibility instead of a BATCH or SCRIPT running somewhere and having to be modified for every such collection.

* Current INITIAL collections are FLV to MP4 - Some others may be different formats/ codecs later.

* Hence VISIBILITY if INPUT folders/ files and OUTPUT would be nice to keep track of.

* Ideally with UI that "shows the list of Selected Source videos" before the BATCH PROCESSING; and maybe during/ after.


--- Might have to be doing various "FLAVORS" of conversions of X format to Y format.. But VISIBILITY & CONFIGURABILITY is key in the UI. -----

What I need:

So GUIs for FFMeg that have Batch with VISIBILITY or Other non FFMPEG - Batch processors with UI with Selection Visibility.


First collections:

---------- FLV to MP4 Commandline without Reencode given these FLVs of current collection are V: .H264/ AVC A: AAC/ mp4a ---

From these threads it seems, its better to copy streams from container without "conversion".
Method seems simple enough via FFMpeg for a single video.

https://obsproject.com/forum/threads/guide-how-to-convert-flvs-to-mp4-fast-without-re-encoding.6406/

ffmpeg -i %1 -c copy -copyts %1.mp4

https://obsproject.com/forum/resources/how-to-convert-flvs-to-mp4-fast-without-re-encoding.78/

ffmpeg -i input.flv -c copy -copyts output.mp4

The "-c copy" means it will just copy the audio and video tracks without re-encoding them.
The "-copyts" flag means it will copy timestamps, which should help with syncing audio and video.

https://obsproject.com/forum/resources/guide-batch-convert-flv-to-mp4-losslessly-with-ffmpeg.525/

@echo off
echo =========================================
echo Flv to Mp4 batch script using ffmpeg v1.0
echo =========================================
echo.
echo Press any key to start the batch process
pause>nul
set SourceDir=C:\Example Dir Here
set TargetDir=C:\Example Dir Here
cd /d %SourceDir%
for %%f in (*.flv) do ffmpeg -i "%SourceDir%\%%f" -c copy -copyts "%TargetDir%\%%f.mp4"
echo.
echo All done! Press any key to exit...
pause>nul

[jagabo]

Many codecs used in FLV files aren't supported by the MP4 container. For those you'll have use a different container (MOV or MKV ?) or re-compress with a suitable codec.