Template:Converting to y4m: Difference between revisions

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== Creating y4m from other formats ==
== Converting to y4m from other formats ==


You can use the ffmpeg tool to generate y4m from any of it supported video formats:
You can use the [https://www.ffmpeg.org/ ffmpeg] tool to generate y4m from any of its supported video formats:


     ffmpeg -i video.webm -pix_fmt yuv420p video.y4m
     ffmpeg -i video.webm -pix_fmt yuv420p video.y4m


Note that ffmpeg is optimized for speed. You may not get repeatable results across machines.
Or just encode directly without an intermediate file:
 
    ffmpeg -i video.webm -pix_fmt yuv420p -f yuv4mpegpipe - | ./encoder_example - -o video.ogv
 
Note that ffmpeg is optimized for speed. You may not get comparable results across machines.

Latest revision as of 20:18, 7 October 2015

Converting to y4m from other formats

You can use the ffmpeg tool to generate y4m from any of its supported video formats:

   ffmpeg -i video.webm -pix_fmt yuv420p video.y4m

Or just encode directly without an intermediate file:

   ffmpeg -i video.webm -pix_fmt yuv420p -f yuv4mpegpipe - | ./encoder_example - -o video.ogv

Note that ffmpeg is optimized for speed. You may not get comparable results across machines.