[FFmpeg-devel] [FUN] FFmpeg tips on Twitter

Clément Bœsch u at pkh.me
Thu Sep 12 10:24:51 CEST 2013

On Wed, Sep 11, 2013 at 04:36:49PM -0800, Lou Logan wrote:
> As the default overlord/monkey of the FFmpeg Twitter account [1] I've
> been simply regurgitating release news (often a few days late since
> releases have been occurring when I've been traveling).

> Today I added a "tip" [2] to make things more interesting. I plan on
> adding more at unspecified intervals – at least once a month if I
> remember.

That's a really good idea IMO.

But I'd suggest you ask on the IRC devel channel before submitting one:
keep in mind this Twitter account is "the voice of the FFmpeg project",
it's not really a user forum or wiki, so we should avoid random mistakes
or inefficient tip :)

> I'd like more FFtips. Please respond if you have any interesting or
> useful examples, and remember that we are limited to 140 characters.

Here are a few suggestions:

"Quickly in need of a 15 seconds video sample for your tests? ffmpeg -f
lavfi -i testsrc -t 15 test.avi"

"Want to export media information into shell script variables? eval
$(ffprobe -v 0 -show_entries stream=width,height -of flat=s=_ in.avi)"

"Is it OK for me to use FFmpeg git/HEAD? Let's check how green
http://fate.ffmpeg.org is."

"FFmpeg is slow to compile, let's try to be faster with dash ./configure
--cc='ccache cc'"

> Also, if you would like anything to be announced on Twitter then feel
> free to contact me.

I'll nag you on IRC when one come to my mind. Thanks for doing this.

Clément B.
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