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Anonymous
FFmthread 2016-03-25 02:48:16Post No. 53670699
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FFmthread Anonymous 2016-03-25 02:48:16 Post No. 53670699 [Report]

Are these good medium quality presets?

Is there more/less I should be doing?

>webm

ffmpeg -i input.wmv -c:v libvpx -vb 1400K -pix_fmt yuv420p -c:a libvorbis -ab 320k -qmin 4 -qmax 52 -crf 25 -quality good -cpu-used 2 -deadline realtime output.webm

>mp4

ffmpeg -i input.wmv -c:v 1400K libx264 -profile:v baseline -strict experimental -c:a aac -ab 320k -qmin 4 -qmax 52 -crf 25 -quality good -cpu-used 2 -preset superfast output.mp4

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Anonymous 2016-03-25 02:53:27 Post No.53670768
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Anonymous 2016-03-25 02:53:27 Post No.53670768 [Report]

>>53670699
>
-pix_fmt yuv420p
not needed, that's automatic

sounds about right for medium quality, the bitrate for the audio is a bit high, though

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Anonymous 2016-03-25 02:56:07 Post No.53670807
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Anonymous 2016-03-25 02:56:07 Post No.53670807 [Report]

>>53670768
those bitrates can be adjusted, im just wondering about all the other options

is libvorbis automatic?

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Anonymous 2016-03-25 02:58:08 Post No.53670837
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Anonymous 2016-03-25 02:58:08 Post No.53670837 [Report]

>>53670807
depends on the version of ffmpeg, the one I'm using has opus as default so you better still call vorbis, to be sure

never heard of -deadline realtime, though

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Anonymous 2016-03-25 02:59:23 Post No.53670854
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Anonymous 2016-03-25 02:59:23 Post No.53670854 [Report]

>>53670699
>Medium quality
Go to McDonalds.

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Anonymous 2016-03-25 03:08:35 Post No.53671001
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Anonymous 2016-03-25 03:08:35 Post No.53671001 [Report]

Is -ab 320k constant bitrate?

Is -q:a 0 variable bitrate? Should it be used instead?