[FFmpeg-devel] [PATCH 1/4] Implement avfilter_ref_video_buffer().

Michael Niedermayer michaelni
Sat Nov 20 03:39:44 CET 2010


On Sat, Nov 13, 2010 at 03:02:50PM +0100, Stefano Sabatini wrote:
> On date Friday 2010-11-12 20:19:08 +0100, Michael Niedermayer encoded:
> > On Fri, Nov 12, 2010 at 03:49:38PM +0100, Stefano Sabatini wrote:
> [...]
> > > Other proposals:
> > > 
> > 
> > > avfilter_get_video_buffer_ref_from_arrays
> > 
> > just longer than my suggestion otherwise its the same
> 
> Your suggestion:
> avfilter_arrays_to_video_buffer_ref()
> 
> I slightly dislike it as it lacks a verb.

If you associate a function with doing something then yes that makes sense
doxy then should also be writen to indicate so which leads to 3rd person ...

the use of to or 2 is quite common to indicate "convert to" though


>  
> > > avfilter_ref_video_buffer_arrays
> > 
> > ambigous
> 
> "Reference video buffer arrays", that is get a reference for the given
> video buffer arrays (data+linesizes), I don't see that so much
> ambiguous and a name of a function has not to be necessarily
> *completely* explicative.

avfilter_ref_video_buffer_arrays, does not contain a verb
either. More precissely ref is not a english word at all.


> 
> > > avfilter_ref_buffer_from_video_buffer_arrays
> > > avfilter_get_video_buffer_ref_from_video_buffer_arrays
> > > avfilter_get_buffer_ref_from_video_buffer_arrays
> > 
> > we have no video anything array, as the thing just represents a single frame
> 
> AVFilterVideoBufferRef references just an image anyway, so if this is
> amniguous the same is for the name of that struct.

Thats not untrue


> 
> Alternatively we could use the term "frame" in place of image (which
> is more consistent with the names already used in the rest of the
> lavfi API, start/end_frame).

To quote h264
3.104 picture: A collective term for a field or a frame.

So while you might think this is bikeshed, its not the terms you switch between
have subtiley different meaning


> 
> > > avfilter_ref_buffer_from_image_arrays
> > > avfilter_get_video_buffer_ref_from_image_arrays
> > > avfilter_get_buffer_ref_from_image_arrays
> > 
> > image arrays implicates to me that there are several images
> 
> That's unfortunately a quirk of the English language, image arrays ~
> images arrays.
> 
> Resuming:
> avfilter_get_video_buffer_ref_from_frame

> avfilter_get_video_buffer_ref_from_arrays

from your list this is the only that is not totally nonsense
still it is just longer than what i suggested with zero additional information
added
avfilter_arrays_to_video_buffer_ref
vs.
avfilter_get_video_buffer_ref_from_arrays

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The bravest are surely those who have the clearest vision
of what is before them, glory and danger alike, and yet
notwithstanding go out to meet it. -- Thucydides
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