On 2012-01-20 14:02:57 +0000, Måns Rullgård wrote: > Reinhard Tartler <siret...@tauware.de> writes: > > > On Mi, Jan 18, 2012 at 23:25:04 (CET), Ronald S. Bultje wrote: > > > >> OK, so it can crash. What's the use case of draw_horiz_band if > >> threading is enabled? Shouldn't the whole callback never be used, > >> since we force codec delay? Is there a valid use case where the > >> user-supplied draw_horiz_band should be called while threading is > >> active and enabled? > >> > >> If not, we shouldn't revert the default back to 1 thread, but we > >> should disable draw_horiz_band calls when threading is enabled. After > >> all, threading gives a much bigger speed benefit than draw_horiz_band. > > > > Another reason for reverting the default back to 1 thread might be to > > avoid crashes with applications that use hwaccel, like vlc/vaapi: > > Sounds like a bug to be fixed.
If I knew how sure. Threading is initiliazed in avcodec_open2() but AVHWAccel based hardware acceleration only after the first frame is available. Janne _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
