Commit graph

5 commits

Author SHA1 Message Date
Guillaume Desmottes
2ca3cf5cfa omxvideodec: add hack to pass color format from caps to OMX decoder
This hack tries to pass as much information as possible from caps to the
decoder before it receives any buffer. These information can be used by
the OMX decoder to, for example, pre-allocate its internal buffers
before starting to decode and so reduce its initial latency.

This mechanism is currently supported by the zynqultrascaleplus decoder.

https://bugzilla.gnome.org/show_bug.cgi?id=792040
2018-01-30 09:23:59 +00:00
Guillaume Desmottes
5751001ddc omxh265dec: add H265 decoder
Add HEVC decoder for the zynqultrascaleplus platform.

I used the H264 decoder code as a template.

https://bugzilla.gnome.org/show_bug.cgi?id=785434
2017-09-06 14:50:18 -04:00
Guillaume Desmottes
cf9f1903db omxh265enc: add H265 encoder
The OMX spec doesn't support HEVC but the OMX stack of the
zynqultrascaleplus adds it as a custom extension.
It uses the same API as the one of Android's OMX stack.

I used the H264 encoder code as a template.

https://bugzilla.gnome.org/show_bug.cgi?id=785434
2017-09-06 14:50:18 -04:00
Guillaume Desmottes
0aa4c9db4e h264dec: add hack to pass profile and level to OMX
This information can be useful to zynqultrascaleplus decoders. They may
use this information to reduce startup latency by configuring itself
before receiving the first frames.

We also have a custom OMX extension allowing the decoder to report the
latency. The profile/level information helps it reporting a more
accurate latency earlier.

https://bugzilla.gnome.org/show_bug.cgi?id=783114
2017-07-11 11:57:50 -04:00
Guillaume Desmottes
2be1214cab add 'zynqultrascaleplus' as OMX target
Adding support for the 'Zynq UltraScale+' as a new OMX target.

See https://www.xilinx.com/products/silicon-devices/soc/zynq-ultrascale-mpsoc.html
for details about the platform.

https://bugzilla.gnome.org/show_bug.cgi?id=783097
2017-07-03 10:15:17 -04:00