Using GPU to decode video on Android

[ivan-perez]

Hello

I'm receiving on my Android mobile phone a video via RTP/UDP, but I've seen
that CPU usage is very high, nearly 100% of one core is being used to decode
the video. On high-end devices the video is played smoothly, but on middle
and low-end devices I barely get 1 frame per second.

This is my pipeline:

udpsrc port=5004
caps=application/x-rtp,payload=96,clock-rate=90000,encoding-name=H264 \
    ! rtpjitterbuffer drop-on-latency=true max-dropout-time=500 \
    ! rtph264depay \
    !
video/x-h264,width=480,height=360,framerate=30/1,profile=baseline,stream-format=avc,alignment=au
\
    ! h264parse \
    ! decodebin \
    ! videoconvert \
    ! autovideosink

And this one is the pipeline on the server side (in this case I'm using a
Raspberry):

gst-launch-1.0 -e -v fdsrc \
  !
video/x-h264,width=480,height=360,framerate=30/1,profile=baseline,stream-format=avc,alignment=au
\
  ! h264parse \
  ! rtph264pay \
      config-interval=1 \
      pt=96 \
  ! udpsink \
      sync=false \
      host=192.168.1.5 \
      port=5004 \
      bind-address=192.168.1.2 \
      bind-port=5004

I think that this can be fixed if I could use GPU decoding instead of
software decoding, but I haven't found any information about it on the docs.

So my question is: How can I decode a H264 video (or whatever other format,
I don't mind to use another one if I get better results) using hardware
acceleration on Android?

Thanks!

Kind regards.



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