ao2.it
Antonio Ospite, theorist attacks

If you need to generate test samples in different YUV formats you can use GStreamer's ffmpegcolorspace plugin like in the following snippet; for instance, in order to get an image in the NV12 raw format you can do:

gst-launch-0.10 -q \
  filesrc location=my_image.jpg ! \
  decodebin2 ! \
  ffmpegcolorspace ! video/x-raw-yuv,format=\(fourcc\)NV12 ! \
  filesink location=my_image_NV12.yuv

obviously you can use FFmpeg directly too.

Here is a script attached for me to use in the future.

Attached files: 

gst-convert-to-yuv.sh - convert an image to a raw YUV format