[Bug 768366] New: Add "set paly video speed" function fail on android

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=768366

            Bug ID: 768366
           Summary: Add "set paly video speed" function fail on android
    Classification: Platform
           Product: GStreamer
           Version: 1.8.0
                OS: Linux
            Status: NEW
          Severity: blocker
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: ereate.wang at qq.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

this is my code :

EXPORT_API void gub_pipeline_set_play_video_speed(GUBPipeline *pipeline,
gdouble speed)
{
    gint64 position = GST_CLOCK_TIME_NONE;
    GstEvent *seek_event;

    gub_log_pipeline(pipeline, "ereate:: Setting play speed to %g", speed);
    gst_element_query_position(pipeline->pipeline, GST_FORMAT_TIME, &position);

    if(speed>0)
    {
       
seek_event=gst_event_new_seek(speed,GST_FORMAT_TIME,GST_SEEK_FLAG_FLUSH|GST_SEEK_FLAG_ACCURATE,
            GST_SEEK_TYPE_SET,position,GST_SEEK_TYPE_NONE,GST_CLOCK_TIME_NONE);
    }
    else
    {
       
seek_event=gst_event_new_seek(speed,GST_FORMAT_TIME,GST_SEEK_FLAG_FLUSH|GST_SEEK_FLAG_ACCURATE,
            GST_SEEK_TYPE_SET,0,GST_SEEK_TYPE_SET,position);
    }

    if(seek_event==NULL)
    {
        gub_log_pipeline(pipeline,"ereate:: gub_pipeline_set_volume(): get
seek_event failled....");
        return ;
    }

    if(pipeline->video_sink ==NULL)
    {
        //GstElement
        //sink = gst_bin_get_by_name(GST_BIN(vsink), "sink");
       
g_object_get(pipeline->pipeline,"video-sink",&(pipeline->video_sink),NULL);
        if(pipeline->video_sink == NULL)
        {
            gub_log_pipeline(pipeline,"ereate:: gub_pipeline_set_volume(): get
video_sink failled....");
            return ;
        }
    }

    gst_element_send_event(pipeline->video_sink,seek_event);
}


when I call the function "gub_pipeline_set_play_video_speed", the video stop to
play video .

The Log:
  GStreamer encountered a general supporting library error.
(gstamcvideodec.c(1020): _gl_sync_render_unlocked ():
/GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstAmcVideoDec-OmxQcomVideoDecod.

could you help me to solve the problem ?

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