On Sun, Jul 16, 2023 at 02:28:53PM +0800, Nuo Mi wrote: > On Mon, Jul 10, 2023 at 3:41 PM Nuo Mi <nuomi2...@gmail.com> wrote: > > > > > > > On Sun, Jul 9, 2023 at 5:52 AM Michael Niedermayer <mich...@niedermayer.cc> > > wrote: > > > >> On Fri, Jul 07, 2023 at 10:05:27PM +0800, Nuo Mi wrote: > >> > The executor design pattern was inroduced by java > >> > < > >> https://docs.oracle.com/en/java/javase/20/docs/api/java.base/java/util/concurrent/Executor.html > >> > > >> > it also adapted by python > >> > <https://docs.python.org/3/library/concurrent.futures.html> > >> > Compared to handcrafted thread pool management, it greatly simplifies > >> the thread code. > >> > --- > >> > libavcodec/Makefile | 1 + > >> > libavcodec/executor.c | 182 ++++++++++++++++++++++++++++++++++++++++ > >> > libavcodec/executor.h | 67 +++++++++++++++ > >> > libavcodec/vvc/Makefile | 4 + > >> > 4 files changed, 254 insertions(+) > >> > create mode 100644 libavcodec/executor.c > >> > create mode 100644 libavcodec/executor.h > >> > create mode 100644 libavcodec/vvc/Makefile > >> > >> This seems to need some fallback if pthreads are unavailable > >> > >> src/libavcodec/executor.c: In function ‘executor_worker_task’: > >> src/libavcodec/executor.c:64:5: error: implicit declaration of function > >> ‘pthread_mutex_lock’; did you mean ‘ff_mutex_lock’? > >> [-Werror=implicit-function-declaration] > >> pthread_mutex_lock(&e->lock); > >> ^~~~~~~~~~~~~~~~~~ > >> ff_mutex_lock > >> ... > >> cc1: some warnings being treated as errors > >> ffmpeg/ffbuild/common.mak:81: recipe for target 'libavcodec/executor.o' > >> failed > >> make: *** [libavcodec/executor.o] Error 1 > >> make: *** Waiting for unfinished jobs.... > >> > >> thx > >> > >> [...] > >> -- > >> Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > >> > >> Why not whip the teacher when the pupil misbehaves? -- Diogenes of Sinope > >> _______________________________________________ > >> 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". > >> > > Hi Michael, > > Thank you for the information. I will fixed it > > > > Hi Michael, > FFmpeg application has a dependency on threads > Once I --disable-pthreads, I can't build ffmpeg for the decoder md5 test. > Could you share with me how to test the decoder when we disabled threads?
it seems this failure occurred on a ppc cross compile ../configure --target-os=linux --enable-cross-compile --disable-iconv --disable-pthreads && make -j32 but its reproduceable on ubuntu x86-64 with a simple make distclean ; ./configure --disable-pthreads && make -j32 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Those who are too smart to engage in politics are punished by being governed by those who are dumber. -- Plato
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