[FFmpeg-user] Combining .webm side by side - frame size changes

[Mike Grommet]

Thank you both for your assistance.

Hm, so far, initial tests using hstack do combine the videos - but I'm 
losing the audio for one of the streams in the final video.



On 11/24/2015 9:15 AM, Moritz Barsnick wrote:
> On Tue, Nov 24, 2015 at 15:20:03 +0100, Paul B Mahol wrote:
>>> Something like
>>> $ ./ffmpeg -i a.webm -i b.webm -filter_complex "[0:v]scale=640:480[left];
>>> [1:v]scale=640:480[right]; [left][right]vstack[out] -map [out] -map 0:a -map
>>> 1:a c.webm
>> hstack is for side by side. vstack is for top/bottom.
> Good catch. My command created legal output, but nothing like intended.
> ;-) So much for not testing my command line. :-P
>
> Thanks!
> Moritz
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