[FFmpeg-devel] [PATCH v3] lavc: convert frame threading to the receive_frame() pattern

[Michael Niedermayer]

On Fri, Dec 09, 2022 at 02:09:45PM +0100, Timo Rothenpieler wrote:
> On 07/12/2022 23:22, Michael Niedermayer wrote:
> > On Wed, Dec 07, 2022 at 02:20:23PM +0100, Timo Rothenpieler wrote:
> > > From: Anton Khirnov <anton at khirnov.net>
> > > 
> > > Reorganize the code such that the frame threading code does not call the
> > > decoders directly, but instead calls back into the generic decoding
> > > code. This avoids duplicating the logic that wraps the decoder
> > > invocation and will be useful in the following commits.
> > > ---
> > >   libavcodec/decode.c        |  57 +++++----
> > >   libavcodec/decode.h        |   7 +
> > >   libavcodec/internal.h      |   7 +
> > >   libavcodec/pthread_frame.c | 256 ++++++++++++++++++++++++-------------
> > >   libavcodec/thread.h        |  18 +--
> > >   5 files changed, 222 insertions(+), 123 deletions(-)
> > 
> > This breaks on arm (probably lack of pthread support) in this env
> > 
> > libavcodec/libavcodec.a(decode.o): In function `decode_receive_frame_internal':
> > arm/src/libavcodec/decode.c:616: undefined reference to `ff_thread_receive_frame'
> > arm/src/libavcodec/decode.c:616: undefined reference to `ff_thread_receive_frame'
> > collect2: error: ld returned 1 exit status
> > Makefile:131: recipe for target 'ffprobe_g' failed
> > make: *** [ffprobe_g] Error 1
> 
> Probably just missing an #if somewhere.

> Why does arm not support pthreads though?
> Or is that just this specific configuration?

just this specific environment 
i could fix that but then noone will test the lack of pthreads so i think
its better if i leave it :)

thx

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

When the tyrant has disposed of foreign enemies by conquest or treaty, and
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