Hi, On Wed, Jul 13, 2016 at 7:12 AM, Wouter Verhelst <[email protected]> wrote: > > By the way, there are many sessions and many recorded one with high quality, > > but it requires enough bandwidth to watch them or download them. > > low quality version of video optionally. > > > > To talk about this topic, I tried to some experimental conversion. > > > > Here is the command line to play with it: > > ffmpeg -i original.webm converted.webm > > > > This executes conversion from vp8 & vorbis to vp9 & opus. > > While losing some quality in the process. If we were to transcode to > VP9, it would be done from the source files, not from the currently > produced files.
Sure, I don't have source files, so just use produced files as a demonstrate. (I think that it should be discussed by the fact about transcode file size) > I did consider creating VP9/Opus WebM files of all the talks before > debconf and debcamp, but I decided not to, in the end: > ... > - While having smaller files for similar quality is useful, I'm not > convinced that producing low-quality versions of video files is still > very useful in this day and age. > > It's certainly on my TODO list to look at producing VP9/Opus files for > next year, but I am of the opinion that this year is too soon. Thank you for explanation in detail! I'm not a expert but I think your decision is reasonable. To be precise, I'm not intended to insist "we need to switch from VP8 to VP9", I just want to say "Please, provide us low-quality versions of video files". The command line which converts from vp8 to vp9 is just example to reduce size. -- Kentaro Hayashi <[email protected]>
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