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i.mx6 VPU MJPEG encoding quality

Question asked by Eric Kratzer on May 16, 2014



I am using the GST C API to encode MJPEG images, and am having trouble finding a way to adjust the JPEG image quality.


The "vpuenc" GST module offers the "bitrate" and "quant" settings, but adjusting these appears to have no effect on output quality.


How would I go about adjusting the typical JPEG "quality" parameter, if it is even possible?