Why can't I send new-segment event?

[wl2776]

Playbin2 doesn't accept new-segment events.

gst_element_send_event(
     GST_ELEMENT(m_player),
    gst_event_new_new_segment( blah-blah-blah)
)

always returns false.

m_player is the instance of playbin2, loaded a MPEG2-PS file.

[michael smith-6-3]

On Fri, Jun 25, 2010 at 2:02 AM, wl2776 <[hidden email]> wrote:

>
> Playbin2 doesn't accept new-segment events.
>
> gst_element_send_event(
>     GST_ELEMENT(m_player),
>    gst_event_new_new_segment( blah-blah-blah)
> )
>
> always returns false.
>
> m_player is the instance of playbin2, loaded a MPEG2-PS file.

Of course. playbin2 has no pads, so sending an event to it can't work.

There wouldn't be any meaningful semantics from doing this anyway.
Whatever you're really trying to do; this is certainly completely the
wrong approach.

Mike

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[wl2776]

michael smith-6-3 wrote

There wouldn't be any meaningful semantics from doing this anyway.
Whatever you're really trying to do; this is certainly completely the
wrong approach.

I am struggling with the reverse framestepping in the mpeg2 files. It works unstable.
Developers still haven't replied neither to my mails here nor to my bugreports in bugzilla.

[Sandeep Prakash]

wl2776 wrote

Playbin2 doesn't accept new-segment events.

gst_element_send_event(
     GST_ELEMENT(m_player),
    gst_event_new_new_segment( blah-blah-blah)
)

always returns false.

m_player is the instance of playbin2, loaded a MPEG2-PS file.

One more thing about the new-segment events is that it can't be sent from outside the
streaming thread. Here is the explanation from the design doc:
       "The NEWSEGMENT event should be sent from the streaming thread and should be
serialized with the buffers."

Plz refer:
http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/design/part-events.txt
for more information abt events.

Cheers,
Sandeep Prakash
http://sandeepprakash.homeip.net