[Bug 749729] gstsample: add a method to set buffer metadata

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=749729

--- Comment #2 from Nicola <lists at svrinformatica.it> ---
(In reply to Tim-Philipp Müller from comment #1)
> Comment on attachment 303818 [details] [review]
> proof of concept patch
> 
> I don't know, this function is very specific, sooner or later people will
> want more things.
> 
> Perhaps we could implement a make_writable() for GstSample that makes sure
> the contents are writable as well, or add a _get_writable_buffer() (but then
> the sample itself needs to be writable too).
> 
> This is really something that kills your app performance? How many buffers
> do you push around per second?

I push as many buffers I can read from disk, making sample writable ecc.. make
my app about 10% slower when I work with files with many small buffers, however
I don't need this patch anymore, I used an alternative approach in my app

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