On Tue, Sep 20, 2016 at 1:54 PM, Amber Beriwal <amber.beri...@newgen.co.in> wrote:
> Hi, > > > > Decode Only. We are not generating PNG. These are the timings of obtaining > YUV data from frame. > > > > Regards > > *Amber Beriwal* > > Newgen Software Technologies Ltd. > You cannot achieve 30 FPS for 720p video in software on the specified platform. Luckily, most Android devices have hardware decoders that can easily handle hi-rez video, but they are not very flexible. The bottleneck is usually the encoder, and fine-tuning its communication with Android camera, see e.g. http://stackoverflow.com/a/19923966/192373. I did some experiments with sliced multithreading for x264, and (with the fastest profile) I could produce 25 FPS for 720p on similar hardware with software encoder, using 2 cores (with NEON optimizations enabled). But not 30 FPS. And this was a severe stress for the battery. Once you have a sliced video stream (or file), you can decode it on two cores, and your own benchmark suggests that the goal is reachable: 60 ms/frame / 2 threads => ~30 fps! BR, Alex
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