PPM image encoder issue

[techyian]

Unit tests have revealed that the PPM encoder results in an Out of Resources error. The file format is inefficient and use of the format may require more resources to be allocated to the GPU, or a smaller image resolution.

[techyian]

Raspberry Pi forum post reference https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=213835

[techyian]

Working as expected following firmware update. Run sudo rpi-update to update to latest firmware. After investigation, configuring the encoding sub-format does not appear to be used by the PPM/TGA encoders.