[FFmpeg-devel] Request: make framepool visible externally

Marco Vianini marco_vianini at yahoo.it
Wed Jul 13 11:21:44 EEST 2022


Yes, I know the version 4.1.6 is very old. But I stuck in 4.1.x versions because I need NDI support.
In the file "framepool.h" there are only some very high level functions to deal with AVFrame pool:
"FFFramePool *ff_frame_pool_video_init(...);FFFramePool *ff_frame_pool_audio_init(...);void ff_frame_pool_uninit(FFFramePool **pool);int ff_frame_pool_get_video_config();int ff_frame_pool_get_audio_config();AVFrame *ff_frame_pool_get(FFFramePool *pool);"
In my debug tests I tried to make "framepool.h" public and to use it, and it worked like a charm!With an important improvement on performances (like a pool does).
Probably I don't understand what You mean with "It's also not in any way stable, so can break its API at any random point.".Can You please clarify?
I think that it is very stable, and contains only high level functions (see above).Then my request to make it public.
Thank You
Il martedì 12 luglio 2022 19:16:02 CEST, Timo Rothenpieler <timo at rothenpieler.org> ha scritto:
 
 
 On 12.07.2022 18:28, Marco Vianini wrote:
> Hi all
> I'm using Libav libraries (version 4.1.6) to make operations on audio/video AVFrame: conversions, decoding, encoding, etc.

That is a really old version, and you should desperately update.

> To improve performances I'd like to use framepool.
> So I need to include "libavfilter/framepool.h", but I cannot, because this file is not exported.
> Should be possible to add "framepool.h" to HEADERS in "libavfilter\Makefile" ?
> Code:"NAME = avfilterDESC = FFmpeg audio/video filtering library
> HEADERS = avfilter.h                                                    \          buffersink.h                                                  \          buffersrc.h                                                   \          version.h                                                     \   framepool.h                

framepool.h is not a public header, and contains no publicly exported 
functions.
Even if you got the header, you couldn't use the functions since they're 
not exported from the library.

So no, you can't use any of the stuff in there outside of libavfilter.
It's also not in any way stable, so can break its API at any random point.
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