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gst/playback/: Set state on newly added element to READY so that negotiation can happen ASAP.

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Original commit message from CVS:
* gst/playback/gstdecodebin.c: (gst_decode_bin_init),
(find_compatibles), (close_pad_link), (try_to_link_1),
(no_more_pads), (close_link), (type_found):
* gst/playback/gstplaybasebin.c: (new_decoded_pad):
* gst/playback/gstplaybin.c: (gen_video_element),
(gen_audio_element):
Set state on newly added element to READY so that negotiation
can happen ASAP.
Addes some more debug info.
Do not try to plug pads with multiple caps structures or ANY
because it is too dangerous since we do not do dynamic
replugging.
This commit is contained in:
Wim Taymans 2004-10-06 09:51:37 +00:00
parent 651b92bc77
commit e3ddfa2c41
4 changed files with 52 additions and 11 deletions
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15
ChangeLog
View file

@ -1,3 +1,18 @@
2004-10-06 Wim Taymans <wim@fluendo.com>
* gst/playback/gstdecodebin.c: (gst_decode_bin_init),
(find_compatibles), (close_pad_link), (try_to_link_1),
(no_more_pads), (close_link), (type_found):
* gst/playback/gstplaybasebin.c: (new_decoded_pad):
* gst/playback/gstplaybin.c: (gen_video_element),
(gen_audio_element):
Set state on newly added element to READY so that negotiation
can happen ASAP.
Addes some more debug info.
Do not try to plug pads with multiple caps structures or ANY
because it is too dangerous since we do not do dynamic
replugging.
2004-10-06 Thomas Vander Stichele <thomas at apestaart dot org>
written by: Gora Mohanty <gora_mohanty@yahoo.co.in>

39
gst/playback/gstdecodebin.c
View file

@ -380,6 +380,14 @@ close_pad_link (GstElement * element, GstPad * pad, GstCaps * caps,
return;
}
/* the caps is any, this means the pad can be anything and
* we don't know yet */
if (gst_caps_is_any (caps)) {
return;
}
GST_LOG_OBJECT (element, "trying to close %" GST_PTR_FORMAT, caps);
/* FIXME, iterate over more structures? */
structure = gst_caps_get_structure (caps, 0);
mimetype = gst_structure_get_name (structure);
@ -402,6 +410,8 @@ close_pad_link (GstElement * element, GstPad * pad, GstCaps * caps,
/* see if any more pending dynamic connections exist */
dynamic = gst_decode_bin_is_dynamic (decode_bin);
GST_LOG_OBJECT (element, "closed pad %s", padname);
/* our own signal with an extra flag that this is the only pad */
g_signal_emit (G_OBJECT (decode_bin),
gst_decode_bin_signals[SIGNAL_NEW_DECODED_PAD], 0, ghost, !dynamic);
@ -410,18 +420,22 @@ close_pad_link (GstElement * element, GstPad * pad, GstCaps * caps,
return;
}
/* then continue plugging, first find all compatible elements */
to_try = find_compatibles (decode_bin, caps);
if (to_try == NULL) {
/* no compatible elements, fire the unknown_type signal, we cannot go
* on */
g_signal_emit (G_OBJECT (decode_bin),
gst_decode_bin_signals[SIGNAL_UNKNOWN_TYPE], 0, caps);
return;
if (gst_caps_get_size (caps) == 1) {
/* then continue plugging, first find all compatible elements */
to_try = find_compatibles (decode_bin, caps);
if (to_try == NULL) {
/* no compatible elements, fire the unknown_type signal, we cannot go
* on */
g_signal_emit (G_OBJECT (decode_bin),
gst_decode_bin_signals[SIGNAL_UNKNOWN_TYPE], 0, caps);
return;
}
try_to_link_1 (decode_bin, pad, to_try);
} else {
GST_LOG_OBJECT (element, "multiple possibilities, delaying");
g_warning ("multiple possibilities, delaying");
}
/* now try to link the elements in the to_try list to the pad */
try_to_link_1 (decode_bin, pad, to_try);
}
/* given a list of element factories, try to link one of the factories
@ -452,6 +466,9 @@ try_to_link_1 (GstDecodeBin * decode_bin, GstPad * pad, GList * factories)
/* now add the element to the bin first */
GST_DEBUG_OBJECT (decode_bin, "adding %s", gst_element_get_name (element));
gst_bin_add (GST_BIN (decode_bin), element);
gst_element_set_state (element, GST_STATE_READY);
/* keep out own list of elements */
decode_bin->elements = g_list_prepend (decode_bin->elements, element);
@ -654,7 +671,7 @@ type_found (GstElement * typefind, guint probability, GstCaps * caps,
gst_element_no_more_pads (GST_ELEMENT (decode_bin));
} else {
/* more dynamic elements exist that could create new pads */
GST_DEBUG_OBJECT (decode_bin, "we more dynamic elements");
GST_DEBUG_OBJECT (decode_bin, "we have more dynamic elements");
}
}

3
gst/playback/gstplaybasebin.c
View file

@ -336,7 +336,10 @@ new_decoded_pad (GstElement * element, GstPad * pad, gboolean last,
play_base_bin->preroll_elems =
g_list_prepend (play_base_bin->preroll_elems, new_element);
gst_element_set_state (new_element, GST_STATE_READY);
gst_pad_link (pad, gst_element_get_pad (new_element, "sink"));
gst_element_set_state (new_element, GST_STATE_PAUSED);
}

6
gst/playback/gstplaybin.c
View file

@ -289,6 +289,8 @@ gen_video_element (GstPlayBin * play_bin)
sink = play_bin->video_sink;
} else {
sink = gst_element_factory_make ("ximagesink", "sink");
/* g_object_set (G_OBJECT (sink), "pixel-aspect-ratio", "1/1", NULL); */
}
play_bin->seekables = g_list_append (play_bin->seekables, sink);
@ -302,6 +304,8 @@ gen_video_element (GstPlayBin * play_bin)
gst_element_add_ghost_pad (element, gst_element_get_pad (conv, "sink"),
"sink");
gst_element_set_state (element, GST_STATE_READY);
return element;
}
@ -343,6 +347,8 @@ gen_audio_element (GstPlayBin * play_bin)
gst_element_add_ghost_pad (element,
gst_element_get_pad (conv, "sink"), "sink");
gst_element_set_state (element, GST_STATE_READY);
return element;
}