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gst/playback/gstplaybasebin.c: Do not try to autoplug sources that generate raw streams like cdparanoia.

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Original commit message from CVS:
* gst/playback/gstplaybasebin.c: (gen_preroll_element),
(unknown_type), (setup_source), (gst_play_base_bin_remove_element),
(gst_play_base_bin_link_stream):
Do not try to autoplug sources that generate raw streams like
cdparanoia.
disconnect the preroll overrun signal when we don't need it anymore.
This commit is contained in:
Wim Taymans 2004-10-08 17:10:16 +00:00
parent 267e7849f4
commit f1684d7324
2 changed files with 87 additions and 5 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2004-10-08 Wim Taymans <wim@fluendo.com>
* gst/playback/gstplaybasebin.c: (gen_preroll_element),
(unknown_type), (setup_source), (gst_play_base_bin_remove_element),
(gst_play_base_bin_link_stream):
Do not try to autoplug sources that generate raw streams like
cdparanoia.
disconnect the preroll overrun signal when we don't need it anymore.
2004-10-08 Wim Taymans <wim@fluendo.com>
* ext/cdparanoia/gstcdparanoia.c: (_do_init),

83
gst/playback/gstplaybasebin.c
View file

@ -192,6 +192,9 @@ gst_play_base_bin_dispose (GObject * object)
}
}
/* this signal will be fired when one of the queues with raw
* data is filled. This means that the preroll stage is over and
* playback should start */
static void
queue_overrun (GstElement * element, GstPlayBaseBin * play_base_bin)
{
@ -208,14 +211,16 @@ gen_preroll_element (GstPlayBaseBin * play_base_bin, GstPad * pad)
{
GstElement *element;
gchar *name;
guint sig;
name = g_strdup_printf ("preroll_%s", gst_pad_get_name (pad));
element = gst_element_factory_make ("queue", name);
g_object_set (G_OBJECT (element), "max-size-buffers", 0, NULL);
g_object_set (G_OBJECT (element), "max-size-bytes", 0, NULL);
g_object_set (G_OBJECT (element), "max-size-time", 3 * GST_SECOND, NULL);
g_signal_connect (G_OBJECT (element), "overrun",
sig = g_signal_connect (G_OBJECT (element), "overrun",
G_CALLBACK (queue_overrun), play_base_bin);
g_object_set_data (G_OBJECT (element), "signal_id", GINT_TO_POINTER (sig));
g_free (name);
return element;
@ -376,14 +381,18 @@ static gboolean
setup_source (GstPlayBaseBin * play_base_bin)
{
GstElement *old_src;
GstPad *srcpad = NULL;
if (!play_base_bin->need_rebuild)
return TRUE;
old_src = play_base_bin->source;
/* create and configure an element that can handle the uri
*/
play_base_bin->source =
gst_element_make_from_uri (GST_URI_SRC, play_base_bin->uri, "source");
if (!play_base_bin->source) {
g_warning ("don't know how to read %s", play_base_bin->uri);
play_base_bin->source = old_src;
@ -396,6 +405,55 @@ setup_source (GstPlayBaseBin * play_base_bin)
gst_bin_add (GST_BIN (play_base_bin->thread), play_base_bin->source);
}
/* now see if the source element emits raw audio/video all by itself,
* if so, we can create streams for the pads and be done with it
*/
{
const GList *pads;
gboolean is_raw = FALSE;
for (pads = gst_element_get_pad_list (play_base_bin->source);
pads; pads = g_list_next (pads)) {
GstPad *pad = GST_PAD (pads->data);
GstStructure *structure;
const gchar *mimetype;
GstCaps *caps;
if (GST_PAD_IS_SINK (pad))
continue;
srcpad = pad;
caps = gst_pad_get_caps (pad);
if (caps == NULL || gst_caps_is_empty (caps) ||
gst_caps_get_size (caps) == 0)
continue;
structure = gst_caps_get_structure (caps, 0);
mimetype = gst_structure_get_name (structure);
if (g_str_has_prefix (mimetype, "audio/x-raw") ||
g_str_has_prefix (mimetype, "video/x-raw")) {
new_decoded_pad (play_base_bin->source, pad, g_list_next (pad) == NULL,
play_base_bin);
is_raw = TRUE;
}
}
if (is_raw) {
return TRUE;
}
}
if (srcpad == NULL) {
/* FIXME we do not handle this yet, but we should just make sure that
* we don't error on this because there is no streaminfo. A possible element
* without any source pads could be cdaudio, which just plays an audio cd
*/
GST_DEBUG_OBJECT (play_base_bin, "have source element without source pad");
return FALSE;
}
{
gboolean res;
gint sig1, sig2, sig3, sig4;
@ -419,11 +477,10 @@ setup_source (GstPlayBaseBin * play_base_bin)
remove_prerolls (play_base_bin);
res =
gst_element_link_pads (play_base_bin->source, "src",
play_base_bin->decoder, "sink");
res = gst_pad_link (srcpad,
gst_element_get_pad (play_base_bin->decoder, "sink"));
if (!res) {
g_warning ("can't link source to typefind element");
g_warning ("can't link source to decoder element");
return FALSE;
}
sig1 = g_signal_connect (G_OBJECT (play_base_bin->decoder),
@ -439,11 +496,27 @@ setup_source (GstPlayBaseBin * play_base_bin)
g_mutex_lock (play_base_bin->preroll_lock);
if (gst_element_set_state (play_base_bin->thread, GST_STATE_PLAYING) ==
GST_STATE_SUCCESS) {
GList *prerolls;
GST_DEBUG ("waiting for preroll...");
sig4 = g_signal_connect (G_OBJECT (play_base_bin->thread),
"state-change", G_CALLBACK (state_change), play_base_bin);
g_cond_wait (play_base_bin->preroll_cond, play_base_bin->preroll_lock);
GST_DEBUG ("preroll done !");
/* remove signals */
for (prerolls = play_base_bin->preroll_elems; prerolls;
prerolls = g_list_next (prerolls)) {
GstElement *element = GST_ELEMENT (prerolls->data);
guint sig_id;
sig_id =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (element),
"signal_id"));
GST_LOG ("removing preroll signal %s", gst_element_get_name (element));
g_signal_handler_disconnect (G_OBJECT (element), sig_id);
}
} else {
GST_DEBUG ("state change failed, media cannot be loaded");
sig4 = 0;