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gst/playback/: Implement muting/unmuting of streams, mute streams that are not used.

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Original commit message from CVS:
* gst/playback/gstplaybasebin.c: (play_base_bin_mute_pad),
(gst_play_base_bin_mute_stream), (gst_play_base_bin_link_stream):
* gst/playback/gstplaybin.c: (setup_sinks):
Implement muting/unmuting of streams, mute streams that are not
used.
This commit is contained in:
Wim Taymans 2004-10-07 11:14:48 +00:00
parent 96ead4ff7f
commit 72570f800a
3 changed files with 85 additions and 17 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2004-10-07 Wim Taymans <wim@fluendo.com>
* gst/playback/gstplaybasebin.c: (play_base_bin_mute_pad),
(gst_play_base_bin_mute_stream), (gst_play_base_bin_link_stream):
* gst/playback/gstplaybin.c: (setup_sinks):
Implement muting/unmuting of streams, mute streams that are not
used.
2004-10-07 Wim Taymans <wim@fluendo.com>
* gst/typefind/gsttypefindfunctions.c: (ac3_type_find),

54
gst/playback/gstplaybasebin.c
View file

@ -739,17 +739,69 @@ gst_play_base_bin_found_tag (GstElement * element,
gst_object_unref (parent);
}
static void
play_base_bin_mute_pad (GstPlayBaseBin * play_base_bin,
GstPad * pad, gboolean mute)
{
GList *int_links;
gboolean activate = !mute;
gchar *debug_str = (activate ? "activate" : "inactivate");
GST_DEBUG_OBJECT (play_base_bin, "%s %s:%s", debug_str,
GST_DEBUG_PAD_NAME (pad));
gst_pad_set_active (pad, activate);
for (int_links = gst_pad_get_internal_links (pad);
int_links; int_links = g_list_next (int_links)) {
GstPad *pad = GST_PAD (int_links->data);
GstPad *peer = gst_pad_get_peer (pad);
GstElement *peer_elem = gst_pad_get_parent (peer);
GST_DEBUG_OBJECT (play_base_bin, "%s internal pad %s:%s",
debug_str, GST_DEBUG_PAD_NAME (pad));
gst_pad_set_active (pad, activate);
if (peer_elem->numsrcpads == 1) {
GST_DEBUG_OBJECT (play_base_bin, "recursing element %s on pad %s:%s",
gst_element_get_name (peer_elem), GST_DEBUG_PAD_NAME (peer));
play_base_bin_mute_pad (play_base_bin, peer, mute);
} else {
GST_DEBUG_OBJECT (play_base_bin, "%s final pad %s:%s",
debug_str, GST_DEBUG_PAD_NAME (peer));
gst_pad_set_active (peer, activate);
}
}
}
/* muting a stream follows the flow downstream and dis/enables all
* pads it encounters until an element with more than one source pad
* (a demuxer or equivalent) is met.
*/
void
gst_play_base_bin_mute_stream (GstPlayBaseBin * play_base_bin,
GstStreamInfo * info, gboolean mute)
{
GST_DEBUG ("mute");
GST_DEBUG ("mute stream");
g_return_if_fail (play_base_bin != NULL);
g_return_if_fail (GST_IS_PLAY_BASE_BIN (play_base_bin));
g_return_if_fail (info != NULL);
g_return_if_fail (GST_IS_STREAM_INFO (info));
/* check if info contains a pad */
if (info->pad == NULL)
return;
play_base_bin_mute_pad (play_base_bin, info->pad, mute);
}
void
gst_play_base_bin_link_stream (GstPlayBaseBin * play_base_bin,
GstStreamInfo * info, GstPad * pad)
{
GST_DEBUG ("link stream");
if (info == NULL) {
GList *streams;

40
gst/playback/gstplaybin.c
View file

@ -382,8 +382,9 @@ setup_sinks (GstPlayBin * play_bin)
GObject *obj = G_OBJECT (s->data);
int type;
GstPad *srcpad, *sinkpad;
GstElement *sink;
GstElement *sink = NULL;
gboolean res;
gboolean mute = FALSE;
g_object_get (obj, "type", &type, NULL);
g_object_get (obj, "pad", &srcpad, NULL);
@ -394,7 +395,7 @@ setup_sinks (GstPlayBin * play_bin)
if (type == 1) {
if (have_audio) {
g_warning ("two audio streams found, playing first one");
continue;
mute = TRUE;
} else {
sink = gen_audio_element (play_bin);
have_audio = TRUE;
@ -402,29 +403,36 @@ setup_sinks (GstPlayBin * play_bin)
} else if (type == 2) {
if (have_video) {
g_warning ("two video streams found, playing first one");
continue;
mute = TRUE;
} else {
sink = gen_video_element (play_bin);
have_video = TRUE;
}
} else {
g_warning ("unknown stream found");
continue;
mute = TRUE;
}
gst_bin_add (GST_BIN (play_bin), sink);
sinkpad = gst_element_get_pad (sink, "sink");
res = gst_pad_link (srcpad, sinkpad);
if (!res) {
gchar *capsstr;
if (sink != NULL) {
gst_bin_add (GST_BIN (play_bin), sink);
sinkpad = gst_element_get_pad (sink, "sink");
res = gst_pad_link (srcpad, sinkpad);
if (!res) {
gchar *capsstr;
capsstr = gst_caps_to_string (gst_pad_get_caps (srcpad));
g_warning ("could not link %s", capsstr);
g_free (capsstr);
GST_LOG ("removing sink %p", sink);
gst_bin_remove (GST_BIN (play_bin), sink);
} else {
play_bin->sinks = g_list_prepend (play_bin->sinks, sink);
capsstr = gst_caps_to_string (gst_pad_get_caps (srcpad));
g_warning ("could not link %s", capsstr);
g_free (capsstr);
GST_LOG ("removing sink %p", sink);
gst_bin_remove (GST_BIN (play_bin), sink);
mute = TRUE;
} else {
play_bin->sinks = g_list_prepend (play_bin->sinks, sink);
}
}
if (mute) {
gst_play_base_bin_mute_stream (GST_PLAY_BASE_BIN (play_bin),
GST_STREAM_INFO (obj), TRUE);
}
}
}