On 4/23/2024 5:53 PM, Michael Niedermayer wrote:
On Tue, Apr 23, 2024 at 05:24:03PM -0300, James Almer wrote:
On 4/23/2024 8:15 AM, Michael Niedermayer wrote:
On Tue, Apr 23, 2024 at 11:10:43AM +0100, Andrew Sayers wrote:
On Tue, Apr 23, 2024 at 12:04:34PM +0200, Anton Khirnov wrote:
Quoting Andrew Sayers (2024-04-23 11:51:00)
On Tue, Apr 23, 2024 at 11:21:27AM +0200, Anton Khirnov wrote:
lavu/opt: Clarify that AVOptions is not indended for general use
They _are_ intended for general use though.
In that case I'm confused...
Let's say I make a desktop app to transcode videos. Obviously I would use
AVOptions to display configuration options for different encoders. And it's
possible to create AVOptions objects for my UI. But how strongly is that use
case recommended?
To provide a particularly difficult example - let's say I want to let the user
choose between interface themes, and I want to show both some text and a
picture of the theme. AVOption doesn't include a "text + picture" option,
so how would I extend it to meet my needs?
If they fit your use case, then use them, otherwise don't - that's true
for pretty much all APIs we provide.
Ah ok, so how about if I changed "intended" to "optimized" in the subject?
If FFmpeg which is a multimedia tool in no place needs or wants to store
pictures through its option API in a way not curently supported.
I would say thats not going to qualify as "general use" outside specialized
software thats already dealing with a lot of pictures
still you certainly can handle binary data (like a bitmap picture) through
AVOption
thx
Take for example AVIAMFReconGain.recon_gain in libavutil/iamf.h, which is
currently the only field not covered by an AVOption (And thus not currently
configurable from the CLI). How could it be supported? Binary type doesn't
work because it expects a pointer + size field and allocates the former.
i would guess some form of AV_OPT_TYPE_FLAG_ARRAY
we have similar arrays like intra_matrix in mpeg codecs
Same situation it seems, it expects a pointer + size field.
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
