+2005-01-08 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+
+ * gst/playback/Makefile.am:
+ * gst/playback/gstplaybasebin.c: (gst_play_base_bin_class_init),
+ (group_destroy), (group_commit), (group_is_muted),
+ (gen_preroll_element), (add_stream), (unknown_type),
+ (probe_triggered), (preroll_unlinked), (mute_stream),
+ (silence_stream), (new_decoded_pad), (setup_substreams),
+ (setup_source), (get_active_source), (mute_group_type),
+ (muted_group_change_state), (set_active_source),
+ (gst_play_base_bin_set_property), (gst_play_base_bin_get_property),
+ (play_base_eos), (gst_play_base_bin_change_state):
+ * gst/playback/gstplaybasebin.h:
+ * gst/playback/gstplaybin.c: (add_sink), (setup_sinks):
+ * gst/playback/gststreaminfo.c: (gst_stream_info_class_init),
+ (gst_stream_info_dispose), (stream_info_mute_pad),
+ (stream_info_change_state), (gst_stream_info_set_mute):
+ * gst/playback/gststreamselector.c: (gst_stream_selector_get_type),
+ (gst_stream_selector_base_init), (gst_stream_selector_class_init),
+ (gst_stream_selector_init), (gst_stream_selector_dispose),
+ (gst_stream_selector_get_linked_pad),
+ (gst_stream_selector_get_caps), (gst_stream_selector_link),
+ (gst_stream_selector_get_linked_pads),
+ (gst_stream_selector_request_new_pad), (gst_stream_selector_chain):
+ * gst/playback/gststreamselector.h:
+ Adding stream selection support plus required properties for
+ applications to use this. Fully fixes #100931.
+
2005-01-08 Benjamin Otte <otte@gnome.org>
* gst/games/gstpuzzle.c: (nav_event_handler):
libgstplaybin_la_SOURCES = \
gstplaybin.c \
gstplaybasebin.c \
- gststreaminfo.c
+ gststreaminfo.c \
+ gststreamselector.c
+
nodist_libgstplaybin_la_SOURCES = $(built_sources)
libgstplaybin_la_CFLAGS = $(GST_CFLAGS)
libgstplaybin_la_LIBADD =
libgstdecodebin_la_LIBADD =
libgstdecodebin_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
-noinst_HEADERS = gstplaybasebin.h gststreaminfo.h
+noinst_HEADERS = \
+ gstplaybasebin.h \
+ gststreaminfo.h \
+ gststreamselector.h
noinst_PROGRAMS = test decodetest test2 test3 test4
#include <string.h>
#include "gstplaybasebin.h"
+#include "gststreamselector.h"
#include "gstplay-marshal.h"
GST_DEBUG_CATEGORY_STATIC (gst_play_base_bin_debug);
ARG_NSTREAMS,
ARG_QUEUE_SIZE,
ARG_STREAMINFO,
- ARG_SOURCE
+ ARG_SOURCE,
+ ARG_VIDEO,
+ ARG_AUDIO,
+ ARG_TEXT
};
/* signals */
static void gst_play_base_bin_found_tag (GstElement * element,
GstElement * source, const GstTagList * taglist, gpointer data);
+static void set_active_source (GstPlayBaseBin * play_base_bin,
+ GstStreamType type, gint source_num);
+static gboolean probe_triggered (GstProbe * probe, GstData ** data,
+ gpointer user_data);
+static void setup_substreams (GstPlayBaseBin * play_base_bin);
+
static GstElementClass *element_class;
static GstElementClass *parent_class;
static guint gst_play_base_bin_signals[LAST_SIGNAL] = { 0 };
g_param_spec_object ("source", "Source", "Source element",
GST_TYPE_ELEMENT, G_PARAM_READABLE));
+ g_object_class_install_property (gobject_klass, ARG_VIDEO,
+ g_param_spec_int ("current-video", "Current video",
+ "Currently playing video stream (-1 = none)",
+ -1, G_MAXINT, -1, G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_klass, ARG_AUDIO,
+ g_param_spec_int ("current-audio", "Current audio",
+ "Currently playing audio stream (-1 = none)",
+ -1, G_MAXINT, -1, G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_klass, ARG_TEXT,
+ g_param_spec_int ("current-text", "Current text",
+ "Currently playing text stream (-1 = none)",
+ -1, G_MAXINT, -1, G_PARAM_READWRITE));
+
GST_DEBUG_CATEGORY_INIT (gst_play_base_bin_debug, "playbasebin", 0,
"playbasebin");
group_destroy (GstPlayBaseGroup * group)
{
GstPlayBaseBin *play_base_bin = group->bin;
- GList *prerolls, *infos;
+ GList *infos;
+ gint n;
GST_LOG ("removing group %p", group);
/* remove the preroll queues */
- for (prerolls = group->preroll_elems; prerolls;
- prerolls = g_list_next (prerolls)) {
- GstElement *element = GST_ELEMENT (prerolls->data);
+ for (n = 0; n < NUM_TYPES; n++) {
+ GstElement *element = group->type[n].preroll;
GstPad *pad;
guint sig_id;
GstElement *fakesrc;
+ const GList *item;
+
+ if (!element)
+ continue;
/* have to unlink the unlink handler first because else we
* are going to link an element in the finalize handler */
}
/* remove any fakesrc elements for this preroll element */
- fakesrc = (GstElement *) g_object_get_data (G_OBJECT (element), "fakesrc");
- if (fakesrc != NULL) {
- GST_LOG ("removing fakesrc");
- gst_bin_remove (GST_BIN (play_base_bin->thread), fakesrc);
+ for (item = gst_element_get_pad_list (group->type[n].selector);
+ item != NULL; item = item->next) {
+ GstPad *pad = item->data;
+
+ if (GST_PAD_DIRECTION (pad) != GST_PAD_SINK)
+ continue;
+
+ fakesrc = (GstElement *) g_object_get_data (G_OBJECT (pad), "fakesrc");
+ if (fakesrc != NULL) {
+ GST_LOG ("removing fakesrc from %s:%s",
+ gst_pad_get_name (pad),
+ GST_ELEMENT_NAME (gst_pad_get_parent (pad)));
+ gst_bin_remove (GST_BIN (play_base_bin->thread), fakesrc);
+ }
}
/* if the group is currently being played, we have to remove the element
if (get_active_group (play_base_bin) == group) {
GST_LOG ("removing preroll element %s", gst_element_get_name (element));
gst_bin_remove (GST_BIN (play_base_bin->thread), element);
+ gst_bin_remove (GST_BIN (play_base_bin->thread), group->type[n].selector);
} else {
/* else we can just unref it */
gst_object_unref (GST_OBJECT (element));
+ gst_object_unref (GST_OBJECT (group->type[n].selector));
}
+
+ group->type[n].preroll = NULL;
}
- g_list_free (group->preroll_elems);
/* free the streaminfo too */
for (infos = group->streaminfo; infos; infos = g_list_next (infos)) {
group_commit (GstPlayBaseBin * play_base_bin, gboolean fatal)
{
GstPlayBaseGroup *group = play_base_bin->building_group;
- GList *prerolls;
/* if an element signalled a no-more-pads after we stopped due
* to preroll, the group is NULL. This is not an error */
GST_DEBUG ("Group loading failed, bailing out");
}
} else {
+ gint n;
+
GST_DEBUG ("group %p done", group);
play_base_bin->queued_groups = g_list_append (play_base_bin->queued_groups,
/* remove signals. We don't want anymore signals from the preroll
* elements at this stage. */
- for (prerolls = group->preroll_elems; prerolls;
- prerolls = g_list_next (prerolls)) {
- GstElement *element = GST_ELEMENT (prerolls->data);
+ for (n = 0; n < NUM_TYPES; n++) {
+ GstElement *element = group->type[n].preroll;
guint sig_id;
+ if (!element)
+ continue;
+
sig_id =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (element), "signal_id"));
static gboolean
group_is_muted (GstPlayBaseGroup * group)
{
- GList *infos;
-
- for (infos = group->streaminfo; infos; infos = g_list_next (infos)) {
- GstStreamInfo *info = GST_STREAM_INFO (infos->data);
+ gint n;
- /* if we find a non muded group we can return FALSE */
- if (!info->mute)
+ for (n = 0; n < NUM_TYPES; n++) {
+ if (group->type[n].preroll && !group->type[n].done)
return FALSE;
}
+
return TRUE;
}
* of the queues to fill. The assumption is that all the dynamic
* streams will be detected by that time.
*/
-static GstElement *
-gen_preroll_element (GstPlayBaseBin * play_base_bin, GstPad * pad)
+static void
+gen_preroll_element (GstPlayBaseBin * play_base_bin,
+ GstPlayBaseGroup * group, GstStreamType type, GstPad * pad,
+ GstStreamInfo * info)
{
- GstElement *element;
+ GstElement *selector, *preroll;
gchar *name;
+ const gchar *prename;
guint sig;
+ GstPad *preroll_pad;
+ GstProbe *probe;
+
+ if (type == GST_STREAM_TYPE_VIDEO)
+ prename = "video";
+ else if (type == GST_STREAM_TYPE_TEXT)
+ prename = "text";
+ else if (type == GST_STREAM_TYPE_AUDIO)
+ prename = "audio";
+ else
+ g_return_if_reached ();
+
+ /* create stream selector */
+ name = g_strdup_printf ("selector_%s_%s", prename, gst_pad_get_name (pad));
+ selector = g_object_new (GST_TYPE_STREAM_SELECTOR, NULL);
+ gst_object_set_name (GST_OBJECT (selector), name);
+ g_free (name);
- name = g_strdup_printf ("preroll_%s", gst_pad_get_name (pad));
- element = gst_element_factory_make ("queue", name);
- g_object_set (G_OBJECT (element),
+ /* create preroll queue */
+ name = g_strdup_printf ("preroll_%s_%s", prename, gst_pad_get_name (pad));
+ preroll = gst_element_factory_make ("queue", name);
+ g_object_set (G_OBJECT (preroll),
"max-size-buffers", 0, "max-size-bytes", 10 * 1024 * 1024,
"max-size-time", play_base_bin->queue_size, NULL);
- sig = g_signal_connect (G_OBJECT (element), "overrun",
+ sig = g_signal_connect (G_OBJECT (preroll), "overrun",
G_CALLBACK (queue_overrun), play_base_bin);
/* keep a ref to the signal id so that we can disconnect the signal callback
* when we are done with the preroll */
- g_object_set_data (G_OBJECT (element), "signal_id", GINT_TO_POINTER (sig));
+ g_object_set_data (G_OBJECT (preroll), "signal_id", GINT_TO_POINTER (sig));
g_free (name);
- return element;
+ /* listen for EOS */
+ preroll_pad = gst_element_get_pad (preroll, "src");
+ probe = gst_probe_new (FALSE, probe_triggered, info);
+ /* have to REALIZE the pad as we cannot attach a padprobe to a ghostpad */
+ gst_pad_add_probe (preroll_pad, probe);
+
+ /* add to group list */
+ gst_element_link (selector, preroll);
+ group->type[type - 1].selector = selector;
+ group->type[type - 1].preroll = preroll;
+ gst_bin_add (GST_BIN (play_base_bin->thread), selector);
+ gst_element_set_state (selector, GST_STATE_PLAYING);
+ gst_bin_add (GST_BIN (play_base_bin->thread), preroll);
+ gst_element_set_state (preroll, GST_STATE_PAUSED);
+
+ play_base_bin->threaded = TRUE;
}
static void
g_object_set_data (G_OBJECT (info), "group", group);
group->streaminfo = g_list_append (group->streaminfo, info);
- switch (info->type) {
- case GST_STREAM_TYPE_AUDIO:
- group->naudiopads++;
- break;
- case GST_STREAM_TYPE_VIDEO:
- group->nvideopads++;
- break;
- case GST_STREAM_TYPE_TEXT:
- group->ntextpads++;
- break;
- default:
- group->nunknownpads++;
- break;
+ if (info->type > 0 && info->type <= NUM_TYPES) {
+ group->type[info->type - 1].npads++;
}
}
GstPlayBaseGroup *group = get_building_group (play_base_bin);
capsstr = gst_caps_to_string (caps);
- g_warning ("don't know how to handle %s", capsstr);
+ g_message /*warning */ ("don't know how to handle %s", capsstr);
/* add the stream to the list */
info = gst_stream_info_new (GST_OBJECT (pad), GST_STREAM_TYPE_UNKNOWN,
GstEvent *event = GST_EVENT (*data);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
+ gint num_groups = 0;
gboolean have_left;
GST_DEBUG ("probe got EOS in group %p", group);
/* mute this stream */
- g_object_set (G_OBJECT (info), "mute", TRUE, NULL);
+ //g_object_set (G_OBJECT (info), "mute", TRUE, NULL);
+ if (info->type > 0 && info->type <= NUM_TYPES)
+ group->type[info->type - 1].done = TRUE;
/* see if we have some more groups left to play */
- have_left = (g_list_length (play_base_bin->queued_groups) > 1);
+ num_groups = g_list_length (play_base_bin->queued_groups);
+ if (play_base_bin->building_group)
+ num_groups++;
+ have_left = (num_groups > 1);
/* see if the complete group is muted */
if (!group_is_muted (group)) {
}
if (have_left) {
+ GST_DEBUG ("changing state for group change");
gst_element_set_state (play_base_bin->thread, GST_STATE_PAUSED);
/* ok, get rid of the current group then */
group_destroy (group);
/* removing the current group brings the next group
* active */
play_base_bin->queued_groups =
- g_list_delete_link (play_base_bin->queued_groups,
- play_base_bin->queued_groups);
+ g_list_remove (play_base_bin->queued_groups, group);
+ setup_substreams (play_base_bin);
GST_DEBUG ("switching to next group %p",
play_base_bin->queued_groups->data);
/* and signal the new group */
GST_DEBUG ("Syncing state from %d", GST_STATE (play_base_bin->thread));
gst_element_set_state (play_base_bin->thread, GST_STATE_PLAYING);
+ GST_DEBUG ("done");
/* get rid of the EOS event */
return FALSE;
+ } else {
+ GST_LOG ("Last group done, EOS");
}
} else if (GST_EVENT_TYPE (event) == GST_EVENT_TAG) {
GstTagList *taglist;
preroll_unlinked (GstPad * pad, GstPad * peerpad,
GstPlayBaseBin * play_base_bin)
{
- GstElement *fakesrc, *queue;
+ GstElement *fakesrc;
guint sig_id;
/* make a fakesrc that will just emit one EOS */
gst_bin_add (GST_BIN (play_base_bin->thread), fakesrc);
/* keep track of these patch elements */
- queue = GST_ELEMENT (gst_object_get_parent (GST_OBJECT (pad)));
- g_object_set_data (G_OBJECT (queue), "fakesrc", fakesrc);
+ g_object_set_data (G_OBJECT (pad), "fakesrc", fakesrc);
/* now unlink the unlinked signal so that it is not called again when
* we destroy the queue */
}
}
+/* Mute stream on first data - for header-is-in-stream-stuff
+ * (vorbis, ogmtext). */
+static gboolean
+mute_stream (GstProbe * probe, GstData ** d, gpointer data)
+{
+ GstStreamInfo *info = GST_STREAM_INFO (data);
+
+ if (GST_IS_BUFFER (*d)) {
+ g_object_set (G_OBJECT (info), "mute", TRUE, NULL);
+ gst_pad_remove_probe ((GstPad *) GST_PAD_REALIZE (info->object), probe);
+ gst_probe_destroy (probe);
+ }
+
+ /* no data */
+ return FALSE;
+}
+
+/* Eat data. */
+static gboolean
+silence_stream (GstProbe * probe, GstData ** d, gpointer data)
+{
+ /* no data */
+ return FALSE;
+}
/* signal fired when decodebin has found a new raw pad. We create
* a preroll element if needed and the appropriate streaminfo.
GstStructure *structure;
const gchar *mimetype;
GstCaps *caps;
- GstElement *new_element = NULL;
GstStreamInfo *info;
GstStreamType type;
- GstPad *srcpad;
- gboolean need_preroll;
+ GstPad *sinkpad;
GstPlayBaseGroup *group;
GstProbe *probe;
+ guint sig;
GST_DEBUG ("play base: new decoded pad %d", last);
group->nstreams++;
- need_preroll = FALSE;
-
if (g_str_has_prefix (mimetype, "audio/")) {
type = GST_STREAM_TYPE_AUDIO;
- /* first audio pad gets a preroll element */
- if (group->naudiopads == 0) {
- need_preroll = TRUE;
- }
} else if (g_str_has_prefix (mimetype, "video/")) {
type = GST_STREAM_TYPE_VIDEO;
- /* first video pad gets a preroll element */
- if (group->nvideopads == 0) {
- need_preroll = TRUE;
- }
} else if (g_str_has_prefix (mimetype, "text/")) {
type = GST_STREAM_TYPE_TEXT;
- /* first text pad gets a preroll element */
- if (group->ntextpads == 0) {
- need_preroll = TRUE;
- }
} else {
type = GST_STREAM_TYPE_UNKNOWN;
}
- if (last || !need_preroll) {
- GST_DEBUG ("play base: pad does not need preroll");
- srcpad = pad;
- } else {
- guint sig;
- GstPad *sinkpad;
-
- GST_DEBUG ("play base: pad needs preroll");
-
- new_element = gen_preroll_element (play_base_bin, pad);
- srcpad = gst_element_get_pad (new_element, "src");
- gst_bin_add (GST_BIN (play_base_bin->thread), new_element);
- play_base_bin->threaded = TRUE;
-
- group->preroll_elems = g_list_prepend (group->preroll_elems, new_element);
-
- gst_element_set_state (new_element, GST_STATE_READY);
+ info = gst_stream_info_new (GST_OBJECT (pad), type, NULL, caps);
+ if (type > 0 && type <= NUM_TYPES) {
+ /* first pad of each type gets a selector + preroll queue */
+ if (group->type[type - 1].npads == 0) {
+ GST_DEBUG ("play base: pad needs new preroll");
+ gen_preroll_element (play_base_bin, group, type, pad, info);
+ }
+ }
- sinkpad = gst_element_get_pad (new_element, "sink");
- gst_pad_link (pad, sinkpad);
- /* make sure we catch unlink signals */
- sig = g_signal_connect (G_OBJECT (sinkpad), "unlinked",
- G_CALLBACK (preroll_unlinked), play_base_bin);
- /* keep a ref to the signal id so that we can disconnect the signal callback */
- g_object_set_data (G_OBJECT (sinkpad), "unlinked_id",
- GINT_TO_POINTER (sig));
+ /* add to stream selector */
+ sinkpad = gst_element_get_pad (group->type[type - 1].selector, "sink%d");
+ /* make sure we catch unlink signals */
+ sig = g_signal_connect (G_OBJECT (sinkpad), "unlinked",
+ G_CALLBACK (preroll_unlinked), play_base_bin);
+ /* keep a ref to the signal id so that we can disconnect the signal callback */
+ g_object_set_data (G_OBJECT (sinkpad), "unlinked_id", GINT_TO_POINTER (sig));
+ gst_pad_link (pad, sinkpad);
- gst_element_set_state (new_element, GST_STATE_PAUSED);
- }
/* add the stream to the list */
- info = gst_stream_info_new (GST_OBJECT (srcpad), type, NULL, caps);
gst_caps_free (caps);
info->origin = GST_OBJECT (pad);
- add_stream (group, info);
- /* install a probe so that we know when this group has ended */
- probe = gst_probe_new (FALSE, probe_triggered, info);
- /* have to REALIZE the pad as we cannot attach a padprobe to a ghostpad */
- gst_pad_add_probe (GST_PAD_REALIZE (srcpad), probe);
+ /* select 1st for now - we'll select a preferred one after preroll */
+ if (type == GST_STREAM_TYPE_UNKNOWN || group->type[type - 1].npads > 0) {
+ probe = gst_probe_new (FALSE, silence_stream, info);
+ gst_pad_add_probe (GST_PAD_REALIZE (pad), probe);
+ g_object_set_data (G_OBJECT (pad), "eat_probe", probe);
+ }
+
+ add_stream (group, info);
/* signal the no more pads after adding the stream */
if (last)
return bin;
}
+/* Setup the substreams (to be called right after group_commit ()) */
+static void
+setup_substreams (GstPlayBaseBin * play_base_bin)
+{
+ GstPlayBaseGroup *group = get_active_group (play_base_bin);
+ GstProbe *probe;
+ gint n;
+ const GList *item;
+
+ /* Remove the eat probes */
+ for (item = group->streaminfo; item; item = item->next) {
+ GstStreamInfo *info = item->data;
+
+ probe = g_object_get_data (G_OBJECT (info->object), "eat_probe");
+ if (probe) {
+ gst_pad_remove_probe (GST_PAD_REALIZE (info->object), probe);
+ gst_probe_destroy (probe);
+ }
+
+ /* now remove unknown pads */
+ if (info->type == GST_STREAM_TYPE_UNKNOWN) {
+ GstProbe *probe;
+
+ probe = gst_probe_new (FALSE, mute_stream, info);
+ gst_pad_add_probe (GST_PAD_REALIZE (info->object), probe);
+ }
+ }
+
+ /* now check if the requested current streams exist */
+ for (n = 0; n < NUM_TYPES; n++) {
+ if (play_base_bin->current[n] >= group->type[n].npads) {
+ play_base_bin->current[n] = group->type[n].npads > 0 ? 0 : -1;
+ }
+ }
+
+ /* now acticate the right sources. Don't forget that during preroll,
+ * we set the first source to forwarding and ignored the rest. */
+ for (n = 0; n < NUM_TYPES; n++) {
+ set_active_source (play_base_bin, n + 1, play_base_bin->current[n]);
+ }
+}
+
/* construct and run the source and decoder elements until we found
* all the streams or until a preroll queue has been filled.
*/
play_base_bin->need_rebuild = FALSE;
}
- /* make subs iterate from now on */
- for (item = play_base_bin->subtitles; item; item = item->next) {
- gst_bin_add (GST_BIN (play_base_bin->thread), item->data);
+ if (get_active_group (play_base_bin) != NULL) {
+ /* make subs iterate from now on */
+ for (item = play_base_bin->subtitles; item; item = item->next) {
+ gst_bin_add (GST_BIN (play_base_bin->thread), item->data);
+ }
+ setup_substreams (play_base_bin);
}
return TRUE;
}
+/*
+ * Multi-stream management. -1 = none.
+ */
+static gint
+get_active_source (GstPlayBaseBin * play_base_bin, GstStreamType type)
+{
+ GstPlayBaseGroup *group;
+ GList *s;
+ gint num = 0;
+
+ group = get_active_group (play_base_bin);
+ if (!group)
+ return -1;
+
+ for (s = group->streaminfo; s; s = s->next) {
+ GstStreamInfo *info = s->data;
+
+ if (info->type == type) {
+ if (!info->mute) {
+ return num;
+ } else {
+ num++;
+ }
+ }
+ }
+
+ return -1;
+}
+
+/* Kill pad reactivation on state change. */
+
+static void muted_group_change_state (GstElement * element,
+ gint old_state, gint new_state, gpointer data);
+
+static void
+mute_group_type (GstPlayBaseGroup * group, GstStreamType type, gboolean mute)
+{
+ gboolean active = !mute;
+
+ gst_pad_set_active (gst_element_get_pad (group->type[type - 1].preroll,
+ "src"), active);
+ gst_pad_set_active (gst_element_get_pad (group->type[type - 1].preroll,
+ "sink"), active);
+ gst_pad_set_active (gst_element_get_pad (group->type[type - 1].selector,
+ "src"), active);
+
+ if (mute) {
+ g_signal_connect (group->type[type - 1].preroll, "state-change",
+ G_CALLBACK (muted_group_change_state), group);
+ } else {
+ g_signal_handlers_disconnect_by_func (group->type[type - 1].preroll,
+ G_CALLBACK (muted_group_change_state), group);
+ }
+}
+
+static void
+muted_group_change_state (GstElement * element,
+ gint old_state, gint new_state, gpointer data)
+{
+ GstPlayBaseGroup *group = data;
+
+ if (new_state == GST_STATE_PLAYING) {
+ gint n;
+
+ for (n = 0; n < NUM_TYPES; n++) {
+ if (group->type[n].selector == element) {
+ mute_group_type (group, n + 1, TRUE);
+ }
+ }
+ }
+}
+
+static void
+set_active_source (GstPlayBaseBin * play_base_bin,
+ GstStreamType type, gint source_num)
+{
+ GstPlayBaseGroup *group;
+ GList *s;
+ gint num = 0;
+ gboolean have_active = FALSE;
+
+ GST_LOG ("Changing active source of type %d to %d", type, source_num);
+ play_base_bin->current[type - 1] = source_num;
+
+ group = get_active_group (play_base_bin);
+ if (!group || !group->type[type - 1].preroll)
+ return;
+
+ for (s = group->streaminfo; s; s = s->next) {
+ GstStreamInfo *info = s->data;
+
+ if (info->type == type) {
+ if (num == source_num) {
+ g_object_set (s->data, "mute", FALSE, NULL);
+ have_active = TRUE;
+ } else {
+ GstProbe *probe;
+
+ probe = gst_probe_new (FALSE, mute_stream, info);
+ gst_pad_add_probe (GST_PAD_REALIZE (info->object), probe);
+ }
+ num++;
+ }
+ }
+
+ mute_group_type (group, type, !have_active);
+}
+
static void
gst_play_base_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
case ARG_QUEUE_SIZE:
play_base_bin->queue_size = g_value_get_uint64 (value);
break;
+ case ARG_VIDEO:
+ set_active_source (play_base_bin,
+ GST_STREAM_TYPE_VIDEO, g_value_get_int (value));
+ break;
+ case ARG_AUDIO:
+ set_active_source (play_base_bin,
+ GST_STREAM_TYPE_AUDIO, g_value_get_int (value));
+ break;
+ case ARG_TEXT:
+ set_active_source (play_base_bin,
+ GST_STREAM_TYPE_TEXT, g_value_get_int (value));
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
} else
g_value_set_object (value, play_base_bin->source);
break;
+ case ARG_VIDEO:
+ g_value_set_int (value, get_active_source (play_base_bin,
+ GST_STREAM_TYPE_VIDEO));
+ break;
+ case ARG_AUDIO:
+ g_value_set_int (value, get_active_source (play_base_bin,
+ GST_STREAM_TYPE_AUDIO));
+ break;
+ case ARG_TEXT:
+ g_value_set_int (value, get_active_source (play_base_bin,
+ GST_STREAM_TYPE_TEXT));
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
{
no_more_pads (GST_ELEMENT (bin), play_base_bin);
+ GST_LOG ("forwarding EOS");
+
gst_element_set_eos (GST_ELEMENT (play_base_bin));
}
GST_DEBUG ("emit signal");
g_signal_emit (play_base_bin,
gst_play_base_bin_signals[SETUP_OUTPUT_PADS_SIGNAL], 0);
+ GST_DEBUG ("done");
} else {
/* clean up leftover groups */
remove_groups (play_base_bin);
gint nstreams;
GList *streaminfo;
- gint naudiopads;
- gint nvideopads;
- gint ntextpads;
- gint nunknownpads;
-
- GList *preroll_elems;
+ struct {
+ gint npads;
+ GstElement *preroll;
+ GstElement *selector;
+ gboolean done;
+#define NUM_TYPES 3
+ } type[NUM_TYPES]; /* AUDIO, VIDEO, TEXT */
} GstPlayBaseGroup;
struct _GstPlayBaseBin {
gboolean threaded;
guint64 queue_size;
+ gint current[NUM_TYPES];
+
/* internal thread */
GstElement *thread;
gchar *uri;
* this should eventually be handled with a tuner interface so that
* one can switch the streams.
*/
+static gboolean
+add_sink (GstPlayBin * play_bin, GstElement * sink, GstPad * srcpad)
+{
+ GstPad *sinkpad;
+ gboolean res;
+
+ /* we found a sink for this stream, now try to install it */
+ gst_bin_add (GST_BIN (play_bin), sink);
+ GST_DEBUG ("Adding sink with state %d (parent: %d, peer: %d)\n",
+ GST_STATE (sink), GST_STATE (play_bin),
+ GST_STATE (gst_pad_get_parent (srcpad)));
+ sinkpad = gst_element_get_pad (sink, "sink");
+
+ /* try to link the pad of the sink to the stream */
+ res = gst_pad_link (srcpad, sinkpad);
+ if (!res) {
+ gchar *capsstr;
+
+ /* could not link this stream */
+ 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 {
+ /* we got the sink succesfully linked, now keep the sink
+ * in out internal list */
+ play_bin->sinks = g_list_prepend (play_bin->sinks, sink);
+ }
+
+ return res;
+}
+
static void
setup_sinks (GstPlayBaseBin * play_base_bin)
{
GstPlayBin *play_bin = GST_PLAY_BIN (play_base_bin);
- GList *streaminfo;
- GList *s;
- gint num_audio = 0;
- gint num_video = 0;
- gint num_text = 0;
+ GstPlayBaseGroup *group;
+ GList *streaminfo = NULL, *s;
gboolean need_vis = FALSE;
gboolean need_text = FALSE;
GstPad *textsrcpad = NULL, *textsinkpad = NULL;
+ GstElement *sink;
- /* FIXME: do this nicer, like taking a look at the installed
- * bins and figuring out if we can simply reconnect them, remove
- * or add them. */
- if (GST_STATE (play_base_bin) == GST_STATE_PLAYING) {
+ /* get rid of existing sinks */
+ if (play_bin->sinks) {
remove_sinks (play_bin);
}
GST_DEBUG ("setupsinks");
- /* get info about the stream */
- g_object_get (G_OBJECT (play_bin), "stream-info", &streaminfo, NULL);
- /* first examine the streams we have */
- for (s = streaminfo; s; s = g_list_next (s)) {
- GObject *obj = G_OBJECT (s->data);
- gint type;
- GstPad *srcpad;
-
- g_object_get (obj, "type", &type, NULL);
- /* we don't care about streams with their own sink */
- if (type == 4)
- continue;
-
- /* else we need to get the pad */
- g_object_get (obj, "object", &srcpad, NULL);
-
- /* hmm.. pad is allready linked */
- if (gst_pad_is_linked (srcpad))
- continue;
-
- if (type == 1) {
- num_audio++;
- } else if (type == 2) {
- num_video++;
- } else if (type == 3) {
- num_text++;
- }
- }
- /* no video, use vis */
- if (num_video == 0 && num_audio > 0 && play_bin->visualisation) {
- need_vis = TRUE;
- } else if (num_video > 0 && num_text > 0) {
+ /* find out what to do */
+ group = play_base_bin->queued_groups->data;
+ if (group->type[GST_STREAM_TYPE_VIDEO - 1].npads > 0 &&
+ group->type[GST_STREAM_TYPE_TEXT - 1].npads > 0) {
need_text = TRUE;
+ } else if (group->type[GST_STREAM_TYPE_VIDEO - 1].npads == 0 &&
+ group->type[GST_STREAM_TYPE_AUDIO - 1].npads > 0 &&
+ play_bin->visualisation != NULL) {
+ need_vis = TRUE;
}
- num_audio = 0;
- num_video = 0;
- num_text = 0;
-
/* now actually connect everything */
+ g_object_get (G_OBJECT (play_base_bin), "stream-info", &streaminfo, NULL);
for (s = streaminfo; s; s = g_list_next (s)) {
GObject *obj = G_OBJECT (s->data);
gint type;
- GstPad *srcpad, *sinkpad;
- GstElement *sink = NULL;
- gboolean res;
- gboolean mute = FALSE;
GstObject *object;
g_object_get (obj, "type", &type, NULL);
/* use the sink elements as seek entry point */
if (type == 4) {
play_bin->seekables = g_list_prepend (play_bin->seekables, object);
- continue;
}
+ }
- srcpad = GST_PAD (object);
-
- /* pas is allready linked, go to the next pad */
- if (gst_pad_is_linked (srcpad))
- continue;
-
- if (type == 1) {
- if (num_audio > 0) {
- g_warning ("two audio streams found, playing first one");
- mute = TRUE;
- } else {
- if (need_vis) {
- sink = gen_vis_element (play_bin);
- } else {
- sink = gen_audio_element (play_bin);
- }
- num_audio++;
- }
- } else if (type == 2) {
- if (num_video > 0) {
- g_warning ("two video streams found, playing first one");
- mute = TRUE;
- } else {
- if (need_text) {
- sink = gen_text_element (play_bin);
- textsinkpad = gst_element_get_pad (sink, "text_sink");
- } else {
- sink = gen_video_element (play_bin);
- }
- num_video++;
- }
- } else if (type == 3) {
- if (num_text > 0) {
- g_warning ("two subtitle streams found, playing first one");
- mute = TRUE;
- } else {
- textsrcpad = srcpad;
- num_text++;
- }
- } else if (type == 4) {
- /* we can ignore these streams here */
+ /* link audio */
+ if (group->type[GST_STREAM_TYPE_AUDIO - 1].npads > 0) {
+ if (need_vis) {
+ sink = gen_vis_element (play_bin);
} else {
- g_warning ("unknown stream found");
- mute = TRUE;
+ sink = gen_audio_element (play_bin);
}
+ //gst_element_link (group->type[GST_STREAM_TYPE_AUDIO - 1].preroll, sink);
+ add_sink (play_bin, sink,
+ gst_element_get_pad (group->type[GST_STREAM_TYPE_AUDIO - 1].preroll,
+ "src"));
+ }
- /* we found a sink for this stream, now try to install it */
- if (sink != NULL) {
- gst_bin_add (GST_BIN (play_bin), sink);
- GST_DEBUG ("Adding sink with state %d (parent: %d, peer: %d)\n",
- GST_STATE (sink), GST_STATE (play_bin),
- GST_STATE (gst_pad_get_parent (srcpad)));
- sinkpad = gst_element_get_pad (sink, "sink");
-
- /* try to link the pad of the sink to the stream */
- res = gst_pad_link (srcpad, sinkpad);
- if (!res) {
- gchar *capsstr;
-
- /* could not link this stream */
- 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 {
- /* we got the sink succesfully linked, now keep the sink
- * in out internal list */
- play_bin->sinks = g_list_prepend (play_bin->sinks, sink);
+ /* link video */
+ if (group->type[GST_STREAM_TYPE_VIDEO - 1].npads > 0) {
+ if (need_text) {
+ sink = gen_text_element (play_bin);
+
+ textsinkpad = gst_element_get_pad (sink, "text_sink");
+ textsrcpad =
+ gst_element_get_pad (group->type[GST_STREAM_TYPE_TEXT - 1].preroll,
+ "src");
+ if (textsinkpad && textsrcpad) {
+ gst_pad_link (textsrcpad, textsinkpad);
}
+ } else {
+ sink = gen_video_element (play_bin);
}
- if (mute) {
- /* no sink found/needed for this stream. We mute the stream
- * so that it does not take any resources */
- g_object_set (G_OBJECT (obj), "mute", TRUE, NULL);
- }
- }
-
- /* if subtitles, link */
- if (textsrcpad && num_video > 0) {
- gst_pad_link (textsrcpad, textsinkpad);
+ //gst_element_link (group->type[GST_STREAM_TYPE_VIDEO - 1].preroll, sink);
+ add_sink (play_bin, sink,
+ gst_element_get_pad (group->type[GST_STREAM_TYPE_VIDEO - 1].preroll,
+ "src"));
}
}
#include <gst/gst.h>
#include "gststreaminfo.h"
+GST_DEBUG_CATEGORY_STATIC (gst_streaminfo_debug);
+#define GST_CAT_DEFAULT gst_streaminfo_debug
+
/* props */
enum
{
static void gst_stream_info_init (GstStreamInfo * stream_info);
static void gst_stream_info_dispose (GObject * object);
+static void stream_info_change_state (GstElement * element,
+ gint old_state, gint new_state, gpointer data);
+
static void gst_stream_info_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec);
static void gst_stream_info_get_property (GObject * object, guint prop_id,
gst_marshal_VOID__BOOLEAN, G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
gobject_klass->dispose = GST_DEBUG_FUNCPTR (gst_stream_info_dispose);
+
+ GST_DEBUG_CATEGORY_INIT (gst_streaminfo_debug, "streaminfo", 0,
+ "Playbin Stream Info");
}
stream_info = GST_STREAM_INFO (object);
- gst_object_unref (stream_info->object);
- stream_info->object = NULL;
+ if (stream_info->object) {
+ if (GST_PAD_REALIZE (stream_info->object)) {
+ g_signal_handlers_disconnect_by_func (gst_pad_get_parent ((GstPad *)
+ GST_PAD_REALIZE (stream_info->object)),
+ G_CALLBACK (stream_info_change_state), stream_info);
+ }
+
+ gst_object_unref (stream_info->object);
+ stream_info->object = NULL;
+ }
stream_info->origin = NULL;
stream_info->type = GST_STREAM_TYPE_UNKNOWN;
g_free (stream_info->decoder);
GST_DEBUG_OBJECT (stream_info, "%s %s:%s", debug_str,
GST_DEBUG_PAD_NAME (pad));
gst_pad_set_active (pad, activate);
+ if (gst_pad_get_parent (pad)->numsrcpads > 1)
+ return;
for (int_links = gst_pad_get_internal_links (pad);
int_links; int_links = g_list_next (int_links)) {
}
}
+static void
+stream_info_change_state (GstElement * element,
+ gint old_state, gint new_state, gpointer data)
+{
+ GstStreamInfo *stream_info = data;
+
+ if (new_state == GST_STATE_PLAYING) {
+ /* state change will annoy us */
+ g_return_if_fail (stream_info->mute == TRUE);
+ GST_DEBUG_OBJECT (stream_info, "Re-muting pads after state-change");
+ stream_info_mute_pad (stream_info, GST_PAD (stream_info->object), TRUE);
+ }
+}
+
gboolean
gst_stream_info_set_mute (GstStreamInfo * stream_info, gboolean mute)
{
if (mute != stream_info->mute) {
stream_info->mute = mute;
- stream_info_mute_pad (stream_info, GST_PAD (stream_info->object), mute);
+ stream_info_mute_pad (stream_info,
+ (GstPad *) GST_PAD_REALIZE (stream_info->object), mute);
+
+ if (mute) {
+ g_signal_connect (gst_pad_get_parent ((GstPad *)
+ GST_PAD_REALIZE (stream_info->object)), "state-change",
+ G_CALLBACK (stream_info_change_state), stream_info);
+ } else {
+ g_signal_handlers_disconnect_by_func (gst_pad_get_parent ((GstPad *)
+ GST_PAD_REALIZE (stream_info->object)),
+ G_CALLBACK (stream_info_change_state), stream_info);
+ }
}
return TRUE;
}
--- /dev/null
+/* GStreamer
+ * Copyright (C) 2003 Julien Moutte <julien@moutte.net>
+ * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * !!!!!!!!!!!!!!!!! Big phat warning. !!!!!!!!!!!!!!!!!!!!!!
+ *
+ * The pads on the sinkside can be filled and the application is
+ * supposed to enable/disable them. The plugin will receive input
+ * data over the currently active pad and take care of data
+ * forwarding and negotiation. This plugin does nothing fancy. It
+ * exists to be light-weight and simple.
+ *
+ * This is not a generic switch element. This is not to be used for
+ * any such purpose. Patches to make it do that will be rejected.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gststreamselector.h"
+
+GST_DEBUG_CATEGORY_STATIC (stream_selector_debug);
+#define GST_CAT_DEFAULT stream_selector_debug
+
+static GstStaticPadTemplate gst_stream_selector_sink_factory =
+GST_STATIC_PAD_TEMPLATE ("sink%d",
+ GST_PAD_SINK,
+ GST_PAD_REQUEST,
+ GST_STATIC_CAPS_ANY);
+
+static GstStaticPadTemplate gst_stream_selector_src_factory =
+GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS_ANY);
+
+static void gst_stream_selector_dispose (GObject * object);
+static void gst_stream_selector_init (GstStreamSelector * sel);
+static void gst_stream_selector_base_init (GstStreamSelectorClass * klass);
+static void gst_stream_selector_class_init (GstStreamSelectorClass * klass);
+
+static GstCaps *gst_stream_selector_get_caps (GstPad * pad);
+static GstPadLinkReturn gst_stream_selector_link (GstPad * pad,
+ const GstCaps * caps);
+static GList *gst_stream_selector_get_linked_pads (GstPad * pad);
+static GstPad *gst_stream_selector_request_new_pad (GstElement * element,
+ GstPadTemplate * templ, const gchar * unused);
+static void gst_stream_selector_chain (GstPad * pad, GstData * data);
+
+static GstElementClass *parent_class = NULL;
+
+GType
+gst_stream_selector_get_type (void)
+{
+ static GType stream_selector_type = 0;
+
+ if (!stream_selector_type) {
+ static const GTypeInfo stream_selector_info = {
+ sizeof (GstStreamSelectorClass),
+ (GBaseInitFunc) gst_stream_selector_base_init,
+ NULL,
+ (GClassInitFunc) gst_stream_selector_class_init,
+ NULL,
+ NULL,
+ sizeof (GstStreamSelector),
+ 0,
+ (GInstanceInitFunc) gst_stream_selector_init,
+ };
+
+ stream_selector_type =
+ g_type_register_static (GST_TYPE_ELEMENT,
+ "GstStreamSelector", &stream_selector_info, 0);
+
+ GST_DEBUG_CATEGORY_INIT (stream_selector_debug,
+ "streamselector", 0, "A stream-selector element");
+ }
+
+ return stream_selector_type;
+}
+
+static void
+gst_stream_selector_base_init (GstStreamSelectorClass * klass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+ static GstElementDetails gst_stream_selector_details =
+ GST_ELEMENT_DETAILS ("StreamSelector",
+ "Generic",
+ "N-to-1 input stream_selectoring",
+ "Julien Moutte <julien@moutte.net>\n"
+ "Ronald S. Bultje <rbultje@ronald.bitfreak.net>");
+
+ gst_element_class_set_details (element_class, &gst_stream_selector_details);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_stream_selector_sink_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_stream_selector_src_factory));
+}
+
+static void
+gst_stream_selector_class_init (GstStreamSelectorClass * klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
+
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ gobject_class->dispose = gst_stream_selector_dispose;
+
+ gstelement_class->request_new_pad = gst_stream_selector_request_new_pad;
+}
+
+static void
+gst_stream_selector_init (GstStreamSelector * sel)
+{
+ sel->srcpad = gst_pad_new ("src", GST_PAD_SRC);
+ gst_pad_set_internal_link_function (sel->srcpad,
+ GST_DEBUG_FUNCPTR (gst_stream_selector_get_linked_pads));
+ gst_pad_set_link_function (sel->srcpad,
+ GST_DEBUG_FUNCPTR (gst_stream_selector_link));
+ gst_pad_set_getcaps_function (sel->srcpad,
+ GST_DEBUG_FUNCPTR (gst_stream_selector_get_caps));
+ gst_element_add_pad (GST_ELEMENT (sel), sel->srcpad);
+
+ /* sinkpad management */
+ sel->last_active_sinkpad = NULL;
+ sel->nb_sinkpads = 0;
+}
+
+static void
+gst_stream_selector_dispose (GObject * object)
+{
+ GstStreamSelector *sel = GST_STREAM_SELECTOR (object);
+
+ sel->last_active_sinkpad = NULL;
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static GstPad *
+gst_stream_selector_get_linked_pad (GstPad * pad)
+{
+ GstStreamSelector *sel = GST_STREAM_SELECTOR (gst_pad_get_parent (pad));
+ GstPad *otherpad = NULL;
+
+ if (pad == sel->srcpad)
+ otherpad = sel->last_active_sinkpad;
+ else if (pad == sel->last_active_sinkpad)
+ otherpad = sel->srcpad;
+
+ return otherpad;
+}
+
+static GstCaps *
+gst_stream_selector_get_caps (GstPad * pad)
+{
+ GstPad *otherpad = gst_stream_selector_get_linked_pad (pad);
+
+ if (!otherpad) {
+ GST_DEBUG_OBJECT (gst_pad_get_parent (pad),
+ "Pad %s not linked, returning ANY", gst_pad_get_name (pad));
+
+ return gst_caps_new_any ();
+ }
+
+ GST_DEBUG_OBJECT (gst_pad_get_parent (pad),
+ "Pad %s is linked (to %s), returning allowed-caps",
+ gst_pad_get_name (pad), gst_pad_get_name (otherpad));
+
+ return gst_pad_get_allowed_caps (otherpad);
+}
+
+static GstPadLinkReturn
+gst_stream_selector_link (GstPad * pad, const GstCaps * caps)
+{
+ GstPad *otherpad = gst_stream_selector_get_linked_pad (pad);
+
+ if (!otherpad) {
+ GST_DEBUG_OBJECT (gst_pad_get_parent (pad),
+ "Pad %s not linked, returning %s",
+ gst_pad_get_name (pad), GST_PAD_IS_SINK (pad) ? "ok" : "delayed");
+
+ return GST_PAD_IS_SINK (pad) ? GST_PAD_LINK_OK : GST_PAD_LINK_DELAYED;
+ }
+
+ GST_DEBUG_OBJECT (gst_pad_get_parent (pad),
+ "Pad %s is linked (to %s), returning other-trysetcaps",
+ gst_pad_get_name (pad), gst_pad_get_name (otherpad));
+
+ return gst_pad_try_set_caps (otherpad, caps);
+}
+
+static GList *
+gst_stream_selector_get_linked_pads (GstPad * pad)
+{
+ GstPad *otherpad = gst_stream_selector_get_linked_pad (pad);
+
+ if (!otherpad)
+ return NULL;
+
+ return g_list_append (NULL, otherpad);
+}
+
+static GstPad *
+gst_stream_selector_request_new_pad (GstElement * element,
+ GstPadTemplate * templ, const gchar * unused)
+{
+ GstStreamSelector *sel = GST_STREAM_SELECTOR (element);
+ gchar *name = NULL;
+ GstPad *sinkpad = NULL;
+
+ g_return_val_if_fail (templ->direction == GST_PAD_SINK, NULL);
+
+ GST_LOG_OBJECT (sel, "Creating new pad %d", sel->nb_sinkpads);
+
+ name = g_strdup_printf ("sink%d", sel->nb_sinkpads++);
+ sinkpad = gst_pad_new_from_template (templ, name);
+ g_free (name);
+
+ gst_pad_set_link_function (sinkpad,
+ GST_DEBUG_FUNCPTR (gst_stream_selector_link));
+ gst_pad_set_getcaps_function (sinkpad,
+ GST_DEBUG_FUNCPTR (gst_stream_selector_get_caps));
+ gst_pad_set_chain_function (sinkpad,
+ GST_DEBUG_FUNCPTR (gst_stream_selector_chain));
+ gst_pad_set_internal_link_function (sinkpad,
+ GST_DEBUG_FUNCPTR (gst_stream_selector_get_linked_pads));
+ gst_element_add_pad (GST_ELEMENT (sel), sinkpad);
+
+ return sinkpad;
+}
+
+static void
+gst_stream_selector_chain (GstPad * pad, GstData * data)
+{
+ GstStreamSelector *sel = GST_STREAM_SELECTOR (gst_pad_get_parent (pad));
+
+ /* first, check if the active pad changed. If so, redo
+ * negotiation and fail if that fails. */
+ if (pad != sel->last_active_sinkpad) {
+ GstPadLinkReturn ret;
+
+ GST_LOG_OBJECT (sel, "stream change detected, switching from %s to %s",
+ sel->last_active_sinkpad ?
+ gst_pad_get_name (sel->last_active_sinkpad) : "none",
+ gst_pad_get_name (pad));
+ sel->last_active_sinkpad = pad;
+ ret = gst_pad_renegotiate (pad);
+ if (GST_PAD_LINK_FAILED (ret)) {
+ GST_ELEMENT_ERROR (sel, CORE, NEGOTIATION, (NULL), (NULL));
+ sel->last_active_sinkpad = NULL;
+ return;
+ }
+ }
+
+ /* forward */
+ GST_DEBUG_OBJECT (sel, "Forwarding %s %p from pad %s",
+ GST_IS_EVENT (data) ? "event" : "buffer", data, gst_pad_get_name (pad));
+ gst_pad_push (sel->srcpad, data);
+}
--- /dev/null
+/* GStreamer
+ * Copyright (C) 2003 Julien Moutte <julien@moutte.net>
+ * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_STREAM_SELECTOR_H__
+#define __GST_STREAM_SELECTOR_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_STREAM_SELECTOR \
+ (gst_stream_selector_get_type())
+#define GST_STREAM_SELECTOR(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_STREAM_SELECTOR, GstStreamSelector))
+#define GST_STREAM_SELECTOR_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_STREAM_SELECTOR, GstStreamSelector))
+#define GST_IS_STREAM_SELECTOR(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_STREAM_SELECTOR))
+#define GST_IS_STREAM_SELECTOR_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_STREAM_SELECTOR))
+
+typedef struct _GstStreamSelector GstStreamSelector;
+typedef struct _GstStreamSelectorClass GstStreamSelectorClass;
+
+struct _GstStreamSelector {
+ GstElement element;
+
+ GstPad *last_active_sinkpad;
+ GstPad *srcpad;
+ guint nb_sinkpads;
+};
+
+struct _GstStreamSelectorClass {
+ GstElementClass parent_class;
+};
+
+GType gst_stream_selector_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_STREAM_SELECTOR_H__ */
projects / platform / upstream / gstreamer.git / commitdiff