[gst-devel] Seeking failed with decoder plugin

[Wei-Di Hung]

Yes, I use ffdemux_avi here.
> Hi ,, 
> Are you using demuxer also in pipeline ? 
> 
> On Thu, Nov 27, 2008 at 3:01 PM, Wei-Di Hung <wdhung at vaplab.ee.ncu.edu.tw> wrote:
> Hi,
> I'm writing a plugin for HW video decoder,
> functions of playing, pause and stop have been verified.
> 
> While seeking, the pipeline ran until the frame of seeking time
> was decoded, i.e, it did jump to the target frame, but the test
> program crashed then.
> 
> Here are messages shown after the sink pad received GST_EVENT_NEW_SEGMENT:
> (player:886): GStreamer-CRITICAL **:
> Trying to dispose element decoder, but it is not in the NULL state.
> You need to explicitly set elements to the NULL state before
> dropping the final reference, to allow them to clean up.
> 
> (player:886): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT
> (object)' failed
> 
> After these message, it seemed the HW keep decoding from the paused frame to
> the target frame. but the intermediate frames were not displayed.
> 
> Before decoding of each frame, came up the folloing message:
> (player:886): GLib-GObject-WARNING **: invalid unclassed pointer in cast to
> `Gstvideodec'
> 
> These are part of codes in sink event handler,
> the format is GST_FORMAT_TIME in this case,
> 
> case GST_EVENT_NEWSEGMENT:
> {
> GstFormat format;
> gint64 start, stop, position;
> gdouble rate;
> 
> gst_event_parse_new_segment(event, NULL, &rate, &format,
> &start, &stop, &position);
> 
> if (GST_FORMAT_TIME == format) {
> result = gst_pad_push_event(filter->srcpad, event);
> } else {
> ... ...
> }
> break;
> }
> 
> Below are part of codes in source event handler:
> 
> switch (GST_EVENT_TYPE(event)) {
> case GST_EVENT_SEEK:
> res = gst_pad_push_event(filter->sinkpad, event);
> break;
> case GST_EVENT_NAVIGATION:
> default:
> res = gst_pad_push_event(filter->sinkpad, event);
> break;
> }
> 
> gst_object_unref(filter);
> return res;
> 
> Could someone help me finding possible root cause?
> Thanks in advance.
> 
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> 
> -- 
> Regards,
> 
> Sudarshan Bisht

 
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