Is it possible to change the source rate while transcoding ?

About encoding, codec settings, muxers and filter usage
Neutro
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Is it possible to change the source rate while transcoding ?

Postby Neutro » 21 Oct 2007 16:17

Hello,

I'm using VLC to stream videos from my computer to a device provided by my ISP which is doing a digital to RGB conversion so i can watch it on my TV.

This device is only accepting 25 fps framerate so i need to use the "sout-transcode-fps=25.0" option in VLC when i watch NTSC vids (23.97 fps).
The problem is that this option is converting 23.97 fps to 25 by duplicating one or two frames each seconds which results in a small freeze each second.

I reencoded the NTSC video using Virtualdub source rate filter :

Image

which is properly making packets of 25 images per second whithout duplicating any frames so it basicly increases the playback speed. After demuxing the audio and resynchronising it with the software Besweet everything works like a charm when i transcode with VLC.

So my question is : is it possible to convert the NTSC frame rate to PAL frame rate the way virtualdub is doing it and change the audio rate accordingly with VLC transcoding system ?

And if it's possible, how !! :)

Thanks in advance for your help.

Neutro
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Re: Is it possible to change the source rate while transcoding ?

Postby Neutro » 24 Oct 2007 15:55

up

VideoLAN_forums
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Re: Is it possible to change the source rate while transcoding ?

Postby VideoLAN_forums » 02 Mar 2009 16:40

Still the same question: is it possible to change framerate during streaming/transcoding for .mkv?


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