[Bug 785686] New: pi: frame drops when decoding H264 1080p at 60 video

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=785686

            Bug ID: 785686
           Summary: pi: frame drops when decoding H264 1080p at 60 video
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-omx
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: gdesmott at gnome.org
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

I get a lot of frame drops when trying to decode a 60fps 1080 video (like
https://drive.google.com/file/d/0BwxFVkl63-lETTVtaVV0LUVRZ1k/view?usp=sharing )
but playing the same file using omxplayer is smooth.

I use this playback pipeline:
gst-launch-1.0 -v filesrc location=FPS_test_1080p60_L4.2.mkv ! matroskademux !
h264parse ! omxh264dec ! queue ! glimagesink

The decoder seems to be able to decode fast enough as shown with this pipeline,
so the slow down should be in glimagesink.

gst-launch-1.0 -v filesrc location=FPS_test_1080p60_L4.2.mkv ! matroskademux !
h264parse ! omxh264dec ! glupload ! "video/x-raw(memory:GLMemory)" !
fpsdisplaysink video-sink=fakesink

/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0: last-message =
rendered: 304, dropped: 0, current: 61,41, average: 59,90

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.