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View Code? Open in Web Editor NEWHardware video encode/decode on the raspberry pi using the MMAL API
Hardware video encode/decode on the raspberry pi using the MMAL API
The following also applies to the fork from 6by9.
$ uname -a
Linux sa1 4.19.19-v7+ #1198 SMP Tue Feb 5 14:53:32 GMT 2019 armv7l GNU/Linux
Using above kernel & f/w always produces this:
$ ./graph_decode_render
startmmal: mmal_port_enable: vc.ril.video_decode:ctr:0(0x1664070) already enabled
mmal: mmal_graph_enable: could not enable port vc.ril.video_decode:ctr:0
stop decoding
The supplied test file plays ok, but subsequent attempts often fail, & many valid .h264 files (I just substituted
SOURCE_OPEN(argv[1])
for the hard coded test file)
silently quit the application immediately.
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