Hello Carlos, On Sat, Dec 8, 2018 at 8:43 AM Carlos Rafael Giani <[email protected]> wrote: > I recently noticed that VP8 playback does not work correctly with > imx-vpu-hantro . If a VP8 stream contains alternate reference (altref) > frames, then imx-vpu-hantro decodes them correctly, but does not inform > about the fact that they are altref frames. This is a problem, because > altref frames are supposed to be decoded, and NOT shown. In particular, > timestamps should not be increased because of a decoded altref frame. > They essentially are for internal use only. > > However, because the callers do not know that a frame is an altref one, > they don't skip them like they should. As a result, A/V sync gradually > gets worse over time. > > Is there any newer imx-vpu-hantro version that fixes this? The necessary > fields are already there. Specifically, there's isGoldenOrAlternate in > the FRAME struct in openmax_il/source/decoder/codec.h . However, it is > never set to TRUE . I did some digging, and the only part that sets any > flag like that is in vp8decmcapi.c (which is not used), and even then, > this concerns itself only with golden frames, not altref ones.
Adding Carol to Cc... -- Otavio Salvador O.S. Systems http://www.ossystems.com.br http://code.ossystems.com.br Mobile: +55 (53) 9 9981-7854 Mobile: +1 (347) 903-9750 -- _______________________________________________ meta-freescale mailing list [email protected] https://lists.yoctoproject.org/listinfo/meta-freescale
