gstomxmjpegdec on RaspberryPi blocks in gst_omx_video_dec_drain()

Submitted by Yuji Kuwabara

Link to original bug (#788036)

Description

GST_EVENT_EOS and GST_EVENT_SEGMENT_DONE causes gst_omx_video_dec_drain().
On RaspberryPi3, for MJPEG movie file, gst_omx_video_dec_drain() blocks forever.

Specifying GST_OMX_HACK_DRAIN_MAY_NOT_RETURN for omxmjpegdec avoid this block.
But I'm not sure whether it is correct way or not.

"gstomx.conf"

[omxmjpegdec]

hacks=no-component-role;drain-may-not-return

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Version: 1.12.3