I like to top post. Feel free to flame me :)
This is a developer's mailing list. As such, it is unlikely that anyone will
take the time to reverse engineer your ffmpeg command and re-write it as a melt
command. However, if you have saturated on the documentation and looked at the
examples, then feel free to bring some specific questions around.
In MLT, filters apply changes/effects to video frames and transitions combine
frames in various ways. You can see the available filters and transitions
here:http://www.mltframework.org/bin/view/MLT/PluginsFiltershttp://www.mltframework.org/bin/view/MLT/PluginsTransitions
The melt documentation is an important place to
start:http://www.mltframework.org/bin/view/MLT/MltMelt
There are a host of really good examples
here:https://github.com/mltframework/mlt/tree/master/demoLook for examples that
use transitions to get a feel for how they work.
It can take a little trial and error to get used to the syntax. So dig in and
have fun!
~Brian
On 11/30/15, Brian Matherly <c...@brianmatherly.com> wrote:
> I think you want to look into MLT transitions.
> ~Brian
Thanks, Brian. I checked
http://www.mltframework.org/bin/view/MLT/PluginsTransitions
But I am not getting how to hook together different transitions and
filters together. An example like the ffmpeg's filter complex would be
helpful, I guess.
wbr,
/z
> Hi,
>
> Is there an equivalent of ffmpeg's --filter-complex in melt? For instance,
>
> $ ffmpeg -f x11grab -video_size 1680x1050 -framerate 30 -i :0.0 \
> -f v4l2 -video_size 320x240 -framerate 30 -i /dev/video0 \
> -f alsa -ac 2 -i hw:0,0 -i logo.png -filter_complex \
> "[0:v]scale=1024:-1,setpts=PTS-STARTPTS[bg]; \
> [1:v]scale=120:-1,setpts=PTS-STARTPTS[fg]; \
> [bg][fg]overlay=W-w-10:10[bg2]; \
> [bg2][3:v]overlay=W-w-10:H-h-10,format=yuv420p[out]" \
> -map "[out]" -map 2:a -vcodec libx264 -preset veryfast \
> -maxrate 3000k -bufsize 4000k -acodec libmp3lame -ar 44100 -b:a 128k \
> -f flv rtmp://live.justin.tv/app/<stream key>
>
> Appreciate any inputs!
>
> Cheers,
> /z
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