[gst-devel] seeking changed in 0.3.2

[Benjamin Otte]

Hm, I guess the reason nobody answers is that events are currently borked.
We (wtay and me) were and are still thinking about a good and working way
to use events.
I am going to rewrite the event code nearly from scratch once I have the
time. So I would be very happy if I didn't need to debug that stuff. :)

And the best suggestion I can give is "don't use it or rewrite it".
Sorry.

I know somebody will flame me on IRC for being so negative, but oh well...

Benjamin



On Mon, 25 Feb 2002, Joshua N Pritikin wrote:

> Here is my code to seek.  i added the _SET suffix to GST_SEEK_BYTEOFFSET to
> get it to compile with 0.3.2.
>
> static void
> _fv_seek (FilmView *fv, gint64 offset)
> {
>   // g_warning ("seek %lld", offset);
>   gst_pad_send_event (gst_element_get_pad (fv->cur_source->elem, "src"),
> 		      gst_event_new_seek (GST_SEEK_BYTEOFFSET_SET, offset, TRUE));
> }
>
> This stopped working with the upgrade from 0.3.1 to 0.3.2.  Now i get:
>
> redael-filmview (pid:3503): GStreamer-ERROR **: file gstpad.c: line 1502 (gst_real_pad_dispose): assertion failed: (GST_PAD_PEER (pad) == NULL)
>
> #6  0x405a322d in g_object_unref () from /usr/lib/libgobject-1.3.so.15
> #7  0x4002da0a in gst_object_unref () from /usr/lib/libgst-0.3.2.so.0
> #8  0x40039b53 in gst_event_free () from /usr/lib/libgst-0.3.2.so.0
> #9  0x4003fef7 in gst_pad_event_default () from /usr/lib/libgst-0.3.2.so.0
> #10 0x400400b3 in gst_pad_send_event () from /usr/lib/libgst-0.3.2.so.0
> #11 0x0804c099 in _fv_pause (fv=0x808d938) at filmview.c:570
>
> It looks like there is some new ref-counting code that isn't working yet
> so i added a g_object_ref(pad) to see what happens next.  It looks like
> filesrc gets stuck in g_tree_search.
>
> Program received signal SIGINT, Interrupt.
> 0x4060c523 in g_tree_search () from /usr/lib/libglib-1.3.so.15
> (gdb) where
> #0  0x4060c523 in g_tree_search () from /usr/lib/libglib-1.3.so.15
> #1  0x405fa595 in g_mem_chunk_alloc () from /usr/lib/libglib-1.3.so.15
> #2  0x40039a29 in gst_event_new () from /usr/lib/libgst-0.3.2.so.0
> #3  0x408c6f62 in gst_filesrc_get_type () from /usr/lib/gst/libgstelements.so
>
> Then a few seconds later:
>
> Program received signal SIGINT, Interrupt.
> 0x4060cd8a in g_tree_nnodes () from /usr/lib/libglib-1.3.so.15
> (gdb) where
> #0  0x4060cd8a in g_tree_nnodes () from /usr/lib/libglib-1.3.so.15
> #1  0x4060c58f in g_tree_search () from /usr/lib/libglib-1.3.so.15
> #2  0x405fa595 in g_mem_chunk_alloc () from /usr/lib/libglib-1.3.so.15
> #3  0x40039a29 in gst_event_new () from /usr/lib/libgst-0.3.2.so.0
> #4  0x408c6f62 in gst_filesrc_get_type () from /usr/lib/gst/libgstelements.so
>
> Any suggestions?
>
> i noticed a brief comment in the release notes about events.  It would
> really be nice if there was a migration guide.  i don't feel too bad
> about API breakage if i know how to fix it.
>
> --
> Victory to the Divine Mother!!         after all,
>   http://sahajayoga.org                  http://why-compete.org
>
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