#include "config.h"
#endif
-#include <string.h>
-
#include "gstautoaudiosink.h"
-#include "gstautodetect.h"
#define DEFAULT_TS_OFFSET 0
-#define DEFAULT_SYNC TRUE
/* Properties */
enum
{
PROP_0,
- PROP_CAPS,
PROP_TS_OFFSET,
- PROP_SYNC,
};
-static GstStateChangeReturn
-gst_auto_audio_sink_change_state (GstElement * element,
- GstStateChange transition);
-static void gst_auto_audio_sink_dispose (GstAutoAudioSink * sink);
-static void gst_auto_audio_sink_clear_kid (GstAutoAudioSink * sink);
static void gst_auto_audio_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_auto_audio_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
+static void gst_auto_audio_sink_configure (GstAutoDetect * autodetect,
+ GstElement * kid);
-#define gst_auto_audio_sink_parent_class parent_class
-G_DEFINE_TYPE (GstAutoAudioSink, gst_auto_audio_sink, GST_TYPE_BIN);
+G_DEFINE_TYPE (GstAutoAudioSink, gst_auto_audio_sink, GST_TYPE_AUTO_DETECT);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
static void
gst_auto_audio_sink_class_init (GstAutoAudioSinkClass * klass)
{
- GObjectClass *gobject_class;
- GstElementClass *eklass;
-
- gobject_class = G_OBJECT_CLASS (klass);
- eklass = GST_ELEMENT_CLASS (klass);
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
+ GstAutoDetectClass *aklass = GST_AUTO_DETECT_CLASS (klass);
- gobject_class->dispose = (GObjectFinalizeFunc) gst_auto_audio_sink_dispose;
gobject_class->set_property = gst_auto_audio_sink_set_property;
gobject_class->get_property = gst_auto_audio_sink_get_property;
- eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_audio_sink_change_state);
-
- /**
- * GstAutoAudioSink:filter-caps:
- *
- * This property will filter out candidate sinks that can handle the specified
- * caps. By default only audio sinks that support raw floating point and
- * integer audio are selected.
- *
- * This property can only be set before the element goes to the READY state.
- */
- g_object_class_install_property (gobject_class, PROP_CAPS,
- g_param_spec_boxed ("filter-caps", "Filter caps",
- "Filter sink candidates using these caps.", GST_TYPE_CAPS,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ aklass->configure = gst_auto_audio_sink_configure;
g_object_class_install_property (gobject_class, PROP_TS_OFFSET,
g_param_spec_int64 ("ts-offset", "TS Offset",
"Timestamp offset in nanoseconds", G_MININT64, G_MAXINT64,
DEFAULT_TS_OFFSET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- g_object_class_install_property (gobject_class, PROP_SYNC,
- g_param_spec_boolean ("sync", "Sync",
- "Sync on the clock", DEFAULT_SYNC,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&sink_template));
-
gst_element_class_set_static_metadata (eklass, "Auto audio sink",
"Sink/Audio",
"Wrapper audio sink for automatically detected audio sink",
}
static void
-gst_auto_audio_sink_dispose (GstAutoAudioSink * sink)
-{
- gst_auto_audio_sink_clear_kid (sink);
-
- if (sink->filter_caps)
- gst_caps_unref (sink->filter_caps);
- sink->filter_caps = NULL;
-
- G_OBJECT_CLASS (parent_class)->dispose ((GObject *) sink);
-}
-
-static void
-gst_auto_audio_sink_clear_kid (GstAutoAudioSink * sink)
-{
- if (sink->kid) {
- gst_element_set_state (sink->kid, GST_STATE_NULL);
- gst_bin_remove (GST_BIN (sink), sink->kid);
- sink->kid = NULL;
- /* Don't lose the SINK flag */
- GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_FLAG_SINK);
- }
-}
-
-/*
- * Hack to make initial linking work; ideally, this'd work even when
- * no target has been assigned to the ghostpad yet.
- */
-static void
-gst_auto_audio_sink_reset (GstAutoAudioSink * sink)
-{
- GstPad *targetpad;
-
- gst_auto_audio_sink_clear_kid (sink);
-
- /* fakesink placeholder */
- sink->kid = gst_element_factory_make ("fakesink", "tempsink");
- gst_bin_add (GST_BIN (sink), sink->kid);
-
- /* pad */
- targetpad = gst_element_get_static_pad (sink->kid, "sink");
- gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
- gst_object_unref (targetpad);
-}
-
-static GstStaticCaps raw_caps = GST_STATIC_CAPS ("audio/x-raw");
-
-static void
gst_auto_audio_sink_init (GstAutoAudioSink * sink)
{
- sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
- gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
+ GstAutoDetect *autodetect = GST_AUTO_DETECT (sink);
- gst_auto_audio_sink_reset (sink);
+ autodetect->media_klass = "Audio";
+ autodetect->flag = GST_ELEMENT_FLAG_SINK;
- /* set the default raw audio caps */
- sink->filter_caps = gst_static_caps_get (&raw_caps);
sink->ts_offset = DEFAULT_TS_OFFSET;
- sink->sync = DEFAULT_SYNC;
-
- /* mark as sink */
- GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_FLAG_SINK);
-}
-
-static gboolean
-gst_auto_audio_sink_factory_filter (GstPluginFeature * feature, gpointer data)
-{
- guint rank;
- const gchar *klass;
-
- /* we only care about element factories */
- if (!GST_IS_ELEMENT_FACTORY (feature))
- return FALSE;
-
- /* audio sinks */
- klass = gst_element_factory_get_metadata (GST_ELEMENT_FACTORY (feature),
- GST_ELEMENT_METADATA_KLASS);
- if (!(strstr (klass, "Sink") && strstr (klass, "Audio")))
- return FALSE;
-
- /* only select elements with autoplugging rank */
- rank = gst_plugin_feature_get_rank (feature);
- if (rank < GST_RANK_MARGINAL)
- return FALSE;
-
- return TRUE;
-}
-
-static GstElement *
-gst_auto_audio_sink_find_best (GstAutoAudioSink * sink)
-{
- GList *list, *item;
- GstElement *choice = NULL;
- GstMessage *message = NULL;
- GSList *errors = NULL;
- GstBus *bus = gst_bus_new ();
- GstPad *el_pad = NULL;
- GstCaps *el_caps = NULL;
- gboolean no_match = TRUE;
-
- list = gst_registry_feature_filter (gst_registry_get (),
- (GstPluginFeatureFilter) gst_auto_audio_sink_factory_filter, FALSE, sink);
- list =
- g_list_sort (list, (GCompareFunc) gst_plugin_feature_rank_compare_func);
-
- /* We don't treat sound server sinks special. Our policy is that sound
- * server sinks that have a rank must not auto-spawn a daemon under any
- * circumstances, so there's nothing for us to worry about here */
- GST_LOG_OBJECT (sink, "Trying to find usable audio devices ...");
-
- for (item = list; item != NULL; item = item->next) {
- GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
- GstElement *el;
-
- if ((el = gst_auto_create_element_with_pretty_name (GST_ELEMENT_CAST (sink),
- f, "sink"))) {
- GstStateChangeReturn ret;
-
- GST_DEBUG_OBJECT (sink, "Testing %s", GST_OBJECT_NAME (f));
-
- /* If autoaudiosink has been provided with filter caps,
- * accept only sinks that match with the filter caps */
- if (sink->filter_caps) {
- el_pad = gst_element_get_static_pad (GST_ELEMENT (el), "sink");
- el_caps = gst_pad_query_caps (el_pad, NULL);
- gst_object_unref (el_pad);
- GST_DEBUG_OBJECT (sink,
- "Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
- sink->filter_caps, el_caps);
- no_match = !gst_caps_can_intersect (sink->filter_caps, el_caps);
- gst_caps_unref (el_caps);
-
- if (no_match) {
- GST_DEBUG_OBJECT (sink, "Incompatible caps");
- gst_object_unref (el);
- continue;
- } else {
- GST_DEBUG_OBJECT (sink, "Found compatible caps");
- }
- }
-
- gst_element_set_bus (el, bus);
- ret = gst_element_set_state (el, GST_STATE_READY);
- if (ret == GST_STATE_CHANGE_SUCCESS) {
- GST_DEBUG_OBJECT (sink, "This worked!");
- choice = el;
- break;
- }
-
- /* collect all error messages */
- while ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ERROR))) {
- GST_DEBUG_OBJECT (sink, "error message %" GST_PTR_FORMAT, message);
- errors = g_slist_append (errors, message);
- }
-
- gst_element_set_state (el, GST_STATE_NULL);
- gst_object_unref (el);
- }
- }
-
- GST_DEBUG_OBJECT (sink, "done trying");
- if (!choice) {
- if (errors) {
- /* FIXME: we forward the first error for now; but later on it might make
- * sense to actually analyse them */
- gst_message_ref (GST_MESSAGE (errors->data));
- GST_DEBUG_OBJECT (sink, "reposting message %p", errors->data);
- gst_element_post_message (GST_ELEMENT (sink), GST_MESSAGE (errors->data));
- } else {
- /* send warning message to application and use a fakesink */
- GST_ELEMENT_WARNING (sink, RESOURCE, NOT_FOUND, (NULL),
- ("Failed to find a usable audio sink"));
- choice = gst_element_factory_make ("fakesink", "fake-audio-sink");
- if (g_object_class_find_property (G_OBJECT_GET_CLASS (choice), "sync"))
- g_object_set (choice, "sync", TRUE, NULL);
- gst_element_set_state (choice, GST_STATE_READY);
- }
- }
- gst_object_unref (bus);
- gst_plugin_feature_list_free (list);
- g_slist_foreach (errors, (GFunc) gst_mini_object_unref, NULL);
- g_slist_free (errors);
-
- return choice;
-}
-
-static gboolean
-gst_auto_audio_sink_detect (GstAutoAudioSink * sink)
-{
- GstElement *esink;
- GstPad *targetpad;
-
- gst_auto_audio_sink_clear_kid (sink);
-
- /* find element */
- GST_DEBUG_OBJECT (sink, "Creating new kid");
- if (!(esink = gst_auto_audio_sink_find_best (sink)))
- goto no_sink;
-
- g_object_set (G_OBJECT (esink), "ts-offset", sink->ts_offset, NULL);
- g_object_set (G_OBJECT (esink), "sync", sink->sync, NULL);
-
- sink->kid = esink;
- /* Ensure the child is brought up to the right state to match the parent
- * although it's currently always in READY and
- * we're always doing NULL->READY. */
- if (GST_STATE (sink->kid) < GST_STATE (sink))
- gst_element_set_state (sink->kid, GST_STATE (sink));
-
- gst_bin_add (GST_BIN (sink), esink);
-
- /* attach ghost pad */
- GST_DEBUG_OBJECT (sink, "Re-assigning ghostpad");
- targetpad = gst_element_get_static_pad (sink->kid, "sink");
- if (!gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad))
- goto target_failed;
-
- gst_object_unref (targetpad);
- GST_DEBUG_OBJECT (sink, "done changing auto audio sink");
-
- return TRUE;
-
- /* ERRORS */
-no_sink:
- {
- GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
- ("Failed to find a supported audio sink"));
- return FALSE;
- }
-target_failed:
- {
- GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
- ("Failed to set target pad"));
- gst_object_unref (targetpad);
- return FALSE;
- }
}
-static GstStateChangeReturn
-gst_auto_audio_sink_change_state (GstElement * element,
- GstStateChange transition)
+static void
+gst_auto_audio_sink_configure (GstAutoDetect * autodetect, GstElement * kid)
{
- GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
- GstAutoAudioSink *sink = GST_AUTO_AUDIO_SINK (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_NULL_TO_READY:
- if (!gst_auto_audio_sink_detect (sink))
- return GST_STATE_CHANGE_FAILURE;
- break;
- default:
- break;
- }
+ GstAutoAudioSink *self = GST_AUTO_AUDIO_SINK (autodetect);
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
- if (ret == GST_STATE_CHANGE_FAILURE)
- return ret;
-
- switch (transition) {
- case GST_STATE_CHANGE_READY_TO_NULL:
- gst_auto_audio_sink_reset (sink);
- break;
- default:
- break;
- }
-
- return ret;
+ g_object_set (G_OBJECT (kid), "ts-offset", self->ts_offset, NULL);
}
static void
const GValue * value, GParamSpec * pspec)
{
GstAutoAudioSink *sink = GST_AUTO_AUDIO_SINK (object);
+ GstAutoDetect *autodetect = (GstAutoDetect *) sink;
switch (prop_id) {
- case PROP_CAPS:
- if (sink->filter_caps)
- gst_caps_unref (sink->filter_caps);
- sink->filter_caps = gst_caps_copy (gst_value_get_caps (value));
- break;
case PROP_TS_OFFSET:
sink->ts_offset = g_value_get_int64 (value);
- if (sink->kid)
- g_object_set_property (G_OBJECT (sink->kid), pspec->name, value);
- break;
- case PROP_SYNC:
- sink->sync = g_value_get_boolean (value);
- if (sink->kid)
- g_object_set_property (G_OBJECT (sink->kid), pspec->name, value);
+ if (autodetect->kid)
+ g_object_set_property (G_OBJECT (autodetect->kid), pspec->name, value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
GstAutoAudioSink *sink = GST_AUTO_AUDIO_SINK (object);
switch (prop_id) {
- case PROP_CAPS:{
- gst_value_set_caps (value, sink->filter_caps);
- break;
- }
case PROP_TS_OFFSET:
g_value_set_int64 (value, sink->ts_offset);
break;
- case PROP_SYNC:
- g_value_set_boolean (value, sink->sync);
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
#define __GST_AUTO_AUDIO_SINK_H__
#include <gst/gst.h>
+#include "gstautodetect.h"
G_BEGIN_DECLS
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AUTO_AUDIO_SINK))
typedef struct _GstAutoAudioSink {
- GstBin parent;
+ GstAutoDetect parent;
- /* explicit pointers to stuff used */
- GstPad *pad;
- GstElement *kid;
- GstCaps *filter_caps;
GstClockTimeDiff ts_offset;
- gboolean sync;
} GstAutoAudioSink;
typedef struct _GstAutoAudioSinkClass {
- GstBinClass parent_class;
+ GstAutoDetectClass parent_class;
} GstAutoAudioSinkClass;
GType gst_auto_audio_sink_get_type (void);
#include "config.h"
#endif
-#include <string.h>
-
#include "gstautoaudiosrc.h"
-#include "gstautodetect.h"
-
-/* Properties */
-enum
-{
- PROP_0,
- PROP_CAPS,
-};
-static GstStateChangeReturn
-gst_auto_audio_src_change_state (GstElement * element,
- GstStateChange transition);
-static void gst_auto_audio_src_dispose (GstAutoAudioSrc * src);
-static void gst_auto_audio_src_clear_kid (GstAutoAudioSrc * src);
-static void gst_auto_audio_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_auto_audio_src_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-#define gst_auto_audio_src_parent_class parent_class
-G_DEFINE_TYPE (GstAutoAudioSrc, gst_auto_audio_src, GST_TYPE_BIN);
+G_DEFINE_TYPE (GstAutoAudioSrc, gst_auto_audio_src, GST_TYPE_AUTO_DETECT);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
static void
gst_auto_audio_src_class_init (GstAutoAudioSrcClass * klass)
{
- GObjectClass *gobject_class;
- GstElementClass *eklass;
-
- gobject_class = G_OBJECT_CLASS (klass);
- eklass = GST_ELEMENT_CLASS (klass);
-
- gobject_class->dispose = (GObjectFinalizeFunc) gst_auto_audio_src_dispose;
- gobject_class->set_property = gst_auto_audio_src_set_property;
- gobject_class->get_property = gst_auto_audio_src_get_property;
-
- eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_audio_src_change_state);
-
- /**
- * GstAutoAudioSrc:filter-caps:
- *
- * This property will filter out candidate sinks that can handle the specified
- * caps. By default only audio sinks that support raw floating point and
- * integer audio are selected.
- *
- * This property can only be set before the element goes to the READY state.
- */
- g_object_class_install_property (gobject_class, PROP_CAPS,
- g_param_spec_boxed ("filter-caps", "Filter caps",
- "Filter sink candidates using these caps.", GST_TYPE_CAPS,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&src_template));
-
gst_element_class_set_static_metadata (eklass, "Auto audio source",
"Source/Audio",
"Wrapper audio source for automatically detected audio source",
}
static void
-gst_auto_audio_src_dispose (GstAutoAudioSrc * src)
-{
- gst_auto_audio_src_clear_kid (src);
-
- if (src->filter_caps)
- gst_caps_unref (src->filter_caps);
- src->filter_caps = NULL;
-
- G_OBJECT_CLASS (parent_class)->dispose ((GObject *) src);
-}
-
-static void
-gst_auto_audio_src_clear_kid (GstAutoAudioSrc * src)
-{
- if (src->kid) {
- gst_element_set_state (src->kid, GST_STATE_NULL);
- gst_bin_remove (GST_BIN (src), src->kid);
- src->kid = NULL;
-
- /* Don't lose SOURCE flag */
- GST_OBJECT_FLAG_SET (src, GST_ELEMENT_FLAG_SOURCE);
- }
-}
-
-/*
- * Hack to make initial linking work; ideally, this'd work even when
- * no target has been assigned to the ghostpad yet.
- */
-static void
-gst_auto_audio_src_reset (GstAutoAudioSrc * src)
-{
- GstPad *targetpad;
-
- gst_auto_audio_src_clear_kid (src);
-
- /* fakesink placeholder */
- src->kid = gst_element_factory_make ("fakesrc", "tempsrc");
- gst_bin_add (GST_BIN (src), src->kid);
-
- /* pad */
- targetpad = gst_element_get_static_pad (src->kid, "src");
- gst_ghost_pad_set_target (GST_GHOST_PAD (src->pad), targetpad);
- gst_object_unref (targetpad);
-}
-
-static GstStaticCaps raw_caps = GST_STATIC_CAPS ("audio/x-raw");
-
-static void
gst_auto_audio_src_init (GstAutoAudioSrc * src)
{
- src->pad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
- gst_element_add_pad (GST_ELEMENT (src), src->pad);
-
- gst_auto_audio_src_reset (src);
-
- /* set the default raw audio caps */
- src->filter_caps = gst_static_caps_get (&raw_caps);
-
- /* mark as source */
- GST_OBJECT_FLAG_SET (src, GST_ELEMENT_FLAG_SOURCE);
-}
-
-static gboolean
-gst_auto_audio_src_factory_filter (GstPluginFeature * feature, gpointer data)
-{
- guint rank;
- const gchar *klass;
-
- /* we only care about element factories */
- if (!GST_IS_ELEMENT_FACTORY (feature))
- return FALSE;
-
- /* audio sinks */
- klass = gst_element_factory_get_metadata (GST_ELEMENT_FACTORY (feature),
- GST_ELEMENT_METADATA_KLASS);
- if (!(strstr (klass, "Source") && strstr (klass, "Audio")))
- return FALSE;
-
- /* only select elements with autoplugging rank */
- rank = gst_plugin_feature_get_rank (feature);
- if (rank < GST_RANK_MARGINAL)
- return FALSE;
-
- return TRUE;
-}
-
-static GstElement *
-gst_auto_audio_src_find_best (GstAutoAudioSrc * src)
-{
- GList *list, *item;
- GstElement *choice = NULL;
- GstMessage *message = NULL;
- GSList *errors = NULL;
- GstBus *bus = gst_bus_new ();
- GstPad *el_pad = NULL;
- GstCaps *el_caps = NULL;
- gboolean no_match = TRUE;
-
- list = gst_registry_feature_filter (gst_registry_get (),
- (GstPluginFeatureFilter) gst_auto_audio_src_factory_filter, FALSE, src);
- list =
- g_list_sort (list, (GCompareFunc) gst_plugin_feature_rank_compare_func);
-
- /* We don't treat sound server sources special. Our policy is that sound
- * server sources that have a rank must not auto-spawn a daemon under any
- * circumstances, so there's nothing for us to worry about here */
- GST_LOG_OBJECT (src, "Trying to find usable audio devices ...");
-
- for (item = list; item != NULL; item = item->next) {
- GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
- GstElement *el;
-
- if ((el = gst_auto_create_element_with_pretty_name (GST_ELEMENT_CAST (src),
- f, "src"))) {
- GstStateChangeReturn ret;
-
- GST_DEBUG_OBJECT (src, "Testing %s", GST_OBJECT_NAME (f));
-
- /* If autoAudioSrc has been provided with filter caps,
- * accept only sources that match with the filter caps */
- if (src->filter_caps) {
- el_pad = gst_element_get_static_pad (GST_ELEMENT (el), "src");
- el_caps = gst_pad_query_caps (el_pad, NULL);
- gst_object_unref (el_pad);
- GST_DEBUG_OBJECT (src,
- "Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
- src->filter_caps, el_caps);
- no_match = !gst_caps_can_intersect (src->filter_caps, el_caps);
- gst_caps_unref (el_caps);
-
- if (no_match) {
- GST_DEBUG_OBJECT (src, "Incompatible caps");
- gst_object_unref (el);
- continue;
- } else {
- GST_DEBUG_OBJECT (src, "Found compatible caps");
- }
- }
-
- gst_element_set_bus (el, bus);
- ret = gst_element_set_state (el, GST_STATE_READY);
- if (ret == GST_STATE_CHANGE_SUCCESS) {
- GST_DEBUG_OBJECT (src, "This worked!");
- choice = el;
- break;
- }
-
- /* collect all error messages */
- while ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ERROR))) {
- GST_DEBUG_OBJECT (src, "error message %" GST_PTR_FORMAT, message);
- errors = g_slist_append (errors, message);
- }
-
- gst_element_set_state (el, GST_STATE_NULL);
- gst_object_unref (el);
- }
- }
-
- GST_DEBUG_OBJECT (src, "done trying");
- if (!choice) {
- if (errors) {
- /* FIXME: we forward the first error for now; but later on it might make
- * sense to actually analyse them */
- gst_message_ref (GST_MESSAGE (errors->data));
- GST_DEBUG_OBJECT (src, "reposting message %p", errors->data);
- gst_element_post_message (GST_ELEMENT (src), GST_MESSAGE (errors->data));
- } else {
- /* send warning message to application and use a fakesrc */
- GST_ELEMENT_WARNING (src, RESOURCE, NOT_FOUND, (NULL),
- ("Failed to find a usable audio source"));
- choice = gst_element_factory_make ("fakesrc", "fake-audio-src");
- if (g_object_class_find_property (G_OBJECT_GET_CLASS (choice), "sync"))
- g_object_set (choice, "sync", TRUE, NULL);
- gst_element_set_state (choice, GST_STATE_READY);
- }
- }
- gst_object_unref (bus);
- gst_plugin_feature_list_free (list);
- g_slist_foreach (errors, (GFunc) gst_mini_object_unref, NULL);
- g_slist_free (errors);
-
- return choice;
-}
-
-static gboolean
-gst_auto_audio_src_detect (GstAutoAudioSrc * src)
-{
- GstElement *esrc;
- GstPad *targetpad;
-
- gst_auto_audio_src_clear_kid (src);
-
- /* find element */
- GST_DEBUG_OBJECT (src, "Creating new kid");
- if (!(esrc = gst_auto_audio_src_find_best (src)))
- goto no_src;
-
- src->kid = esrc;
- /* Ensure the child is brought up to the right state to match the parent
- * although it's currently always in READY and
- * we're always doing NULL->READY. */
- if (GST_STATE (src->kid) < GST_STATE (src))
- gst_element_set_state (src->kid, GST_STATE (src));
-
- gst_bin_add (GST_BIN (src), esrc);
-
- /* attach ghost pad */
- GST_DEBUG_OBJECT (src, "Re-assigning ghostpad");
- targetpad = gst_element_get_static_pad (src->kid, "src");
- if (!gst_ghost_pad_set_target (GST_GHOST_PAD (src->pad), targetpad))
- goto target_failed;
-
- gst_object_unref (targetpad);
- GST_DEBUG_OBJECT (src, "done changing auto audio source");
-
- return TRUE;
-
- /* ERRORS */
-no_src:
- {
- GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL),
- ("Failed to find a supported audio source"));
- return FALSE;
- }
-target_failed:
- {
- GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL),
- ("Failed to set target pad"));
- gst_object_unref (targetpad);
- return FALSE;
- }
-}
-
-static GstStateChangeReturn
-gst_auto_audio_src_change_state (GstElement * element,
- GstStateChange transition)
-{
- GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
- GstAutoAudioSrc *src = GST_AUTO_AUDIO_SRC (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_NULL_TO_READY:
- if (!gst_auto_audio_src_detect (src))
- return GST_STATE_CHANGE_FAILURE;
- break;
- default:
- break;
- }
-
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
- if (ret == GST_STATE_CHANGE_FAILURE)
- return ret;
-
- switch (transition) {
- case GST_STATE_CHANGE_READY_TO_NULL:
- gst_auto_audio_src_reset (src);
- break;
- default:
- break;
- }
-
- return ret;
-}
-
-static void
-gst_auto_audio_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstAutoAudioSrc *src = GST_AUTO_AUDIO_SRC (object);
-
- switch (prop_id) {
- case PROP_CAPS:
- if (src->filter_caps)
- gst_caps_unref (src->filter_caps);
- src->filter_caps = gst_caps_copy (gst_value_get_caps (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_auto_audio_src_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- GstAutoAudioSrc *src = GST_AUTO_AUDIO_SRC (object);
+ GstAutoDetect *autodetect = GST_AUTO_DETECT (src);
- switch (prop_id) {
- case PROP_CAPS:{
- gst_value_set_caps (value, src->filter_caps);
- break;
- }
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
+ autodetect->media_klass = "Audio";
+ autodetect->flag = GST_ELEMENT_FLAG_SOURCE;
}
#define __GST_AUTO_AUDIO_SRC_H__
#include <gst/gst.h>
+#include "gstautodetect.h"
G_BEGIN_DECLS
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AUTO_AUDIO_SRC))
typedef struct _GstAutoAudioSrc {
- GstBin parent;
-
- /* explicit pointers to stuff used */
- GstPad *pad;
- GstElement *kid;
- GstCaps *filter_caps;
+ GstAutoDetect parent;
} GstAutoAudioSrc;
typedef struct _GstAutoAudioSrcClass {
- GstBinClass parent_class;
+ GstAutoDetectClass parent_class;
} GstAutoAudioSrcClass;
GType gst_auto_audio_src_get_type (void);
#include "config.h"
#endif
+#include <stdio.h>
#include <string.h>
#include <gst/gst.h>
GST_DEBUG_CATEGORY (autodetect_debug);
-GstElement *
-gst_auto_create_element_with_pretty_name (GstElement * autodetect,
- GstElementFactory * factory, const gchar * suffix)
+#define DEFAULT_SYNC TRUE
+
+/* Properties */
+enum
+{
+ PROP_0,
+ PROP_CAPS,
+ PROP_SYNC,
+};
+
+static GstStateChangeReturn gst_auto_detect_change_state (GstElement * element,
+ GstStateChange transition);
+static void gst_auto_detect_constructed (GObject * object);
+static void gst_auto_detect_dispose (GObject * self);
+static void gst_auto_detect_clear_kid (GstAutoDetect * self);
+static void gst_auto_detect_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_auto_detect_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+#define gst_auto_detect_parent_class parent_class
+G_DEFINE_ABSTRACT_TYPE (GstAutoDetect, gst_auto_detect, GST_TYPE_BIN);
+
+static void
+gst_auto_detect_class_init (GstAutoDetectClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *eklass;
+
+ gobject_class = G_OBJECT_CLASS (klass);
+ eklass = GST_ELEMENT_CLASS (klass);
+
+ gobject_class->constructed = gst_auto_detect_constructed;
+ gobject_class->dispose = gst_auto_detect_dispose;
+ gobject_class->set_property = gst_auto_detect_set_property;
+ gobject_class->get_property = gst_auto_detect_get_property;
+
+ eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_detect_change_state);
+
+ /**
+ * GstAutoDetect:filter-caps:
+ *
+ * This property will filter out candidate sinks that can handle the specified
+ * caps. By default only elements that support uncompressed data are selected.
+ *
+ * This property can only be set before the element goes to the READY state.
+ */
+ g_object_class_install_property (gobject_class, PROP_CAPS,
+ g_param_spec_boxed ("filter-caps", "Filter caps",
+ "Filter sink candidates using these caps.", GST_TYPE_CAPS,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class, PROP_SYNC,
+ g_param_spec_boolean ("sync", "Sync",
+ "Sync on the clock", DEFAULT_SYNC,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+}
+
+static void
+gst_auto_detect_dispose (GObject * object)
+{
+ GstAutoDetect *self = GST_AUTO_DETECT (object);
+
+ gst_auto_detect_clear_kid (self);
+
+ if (self->filter_caps)
+ gst_caps_unref (self->filter_caps);
+ self->filter_caps = NULL;
+
+ G_OBJECT_CLASS (parent_class)->dispose ((GObject *) self);
+}
+
+static void
+gst_auto_detect_clear_kid (GstAutoDetect * self)
+{
+ if (self->kid) {
+ gst_element_set_state (self->kid, GST_STATE_NULL);
+ gst_bin_remove (GST_BIN (self), self->kid);
+ self->kid = NULL;
+ /* Don't lose the element type flag */
+ GST_OBJECT_FLAG_SET (self, self->flag);
+ }
+}
+
+static GstElement *
+gst_auto_detect_create_fake_element (GstAutoDetect * self)
+{
+ GstElement *fake;
+ gchar dummy_factory[10], dummy_name[20];
+
+ sprintf (dummy_factory, "fake%s", self->type_klass_lc);
+ sprintf (dummy_name, "fake-%s-%s", self->media_klass_lc, self->type_klass_lc);
+ fake = gst_element_factory_make (dummy_factory, dummy_name);
+ g_object_set (fake, "sync", self->sync, NULL);
+
+ return fake;
+}
+
+static gboolean
+gst_auto_detect_attach_ghost_pad (GstAutoDetect * self)
+{
+ GstPad *target = gst_element_get_static_pad (self->kid, self->type_klass_lc);
+ gboolean res = gst_ghost_pad_set_target (GST_GHOST_PAD (self->pad), target);
+ gst_object_unref (target);
+
+ return res;
+}
+
+/* Hack to make initial linking work; ideally, this'd work even when
+ * no target has been assigned to the ghostpad yet. */
+static void
+gst_auto_detect_reset (GstAutoDetect * self)
+{
+ gst_auto_detect_clear_kid (self);
+
+ /* placeholder element */
+ self->kid = gst_auto_detect_create_fake_element (self);
+ gst_bin_add (GST_BIN (self), self->kid);
+
+ gst_auto_detect_attach_ghost_pad (self);
+}
+
+static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw");
+static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw");
+
+static void
+gst_auto_detect_init (GstAutoDetect * self)
+{
+ self->sync = DEFAULT_SYNC;
+}
+
+static void
+gst_auto_detect_constructed (GObject * object)
+{
+ GstAutoDetect *self = GST_AUTO_DETECT (object);
+ gboolean is_audio;
+
+ if (G_OBJECT_CLASS (parent_class)->constructed)
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ is_audio = !g_strcmp0 (self->media_klass, "Audio");
+ self->type_klass = (self->flag == GST_ELEMENT_FLAG_SINK) ? "Sink" : "Source";
+ self->type_klass_lc = (self->flag == GST_ELEMENT_FLAG_SINK) ? "sink" : "src";
+ self->media_klass_lc = is_audio ? "audio" : "video";
+ /* set the default raw caps */
+ self->filter_caps = gst_static_caps_get (is_audio ? &raw_audio_caps :
+ &raw_video_caps);
+
+ self->pad = gst_ghost_pad_new_no_target (self->type_klass_lc,
+ (self->flag == GST_ELEMENT_FLAG_SINK) ? GST_PAD_SINK : GST_PAD_SRC);
+ gst_element_add_pad (GST_ELEMENT (self), self->pad);
+
+ gst_auto_detect_reset (self);
+
+ /* mark element type */
+ GST_OBJECT_FLAG_SET (self, self->flag);
+}
+
+static gboolean
+gst_auto_detect_factory_filter (GstPluginFeature * feature, gpointer data)
+{
+ GstAutoDetect *self = (GstAutoDetect *) data;
+ guint rank;
+ const gchar *klass;
+
+ /* we only care about element factories */
+ if (!GST_IS_ELEMENT_FACTORY (feature))
+ return FALSE;
+
+ /* audio sinks */
+ klass = gst_element_factory_get_metadata (GST_ELEMENT_FACTORY (feature),
+ GST_ELEMENT_METADATA_KLASS);
+ if (!(strstr (klass, self->type_klass) && strstr (klass, self->media_klass)))
+ return FALSE;
+
+ /* only select elements with autoplugging rank */
+ rank = gst_plugin_feature_get_rank (feature);
+ if (rank < GST_RANK_MARGINAL)
+ return FALSE;
+
+ return TRUE;
+}
+
+static GstElement *
+create_element_with_pretty_name (GstAutoDetect * self,
+ GstElementFactory * factory)
{
GstElement *element;
gchar *name, *marker;
marker = g_strdup (GST_OBJECT_NAME (factory));
- if (g_str_has_suffix (marker, suffix))
+ if (g_str_has_suffix (marker, self->type_klass_lc))
marker[strlen (marker) - 4] = '\0';
if (g_str_has_prefix (marker, "gst"))
memmove (marker, marker + 3, strlen (marker + 3) + 1);
- name = g_strdup_printf ("%s-actual-%s-%s", GST_OBJECT_NAME (autodetect),
- suffix, marker);
+ name = g_strdup_printf ("%s-actual-%s-%s", GST_OBJECT_NAME (self),
+ self->type_klass_lc, marker);
g_free (marker);
element = gst_element_factory_create (factory, name);
return element;
}
+static GstElement *
+gst_auto_detect_find_best (GstAutoDetect * self)
+{
+ GList *list, *item;
+ GstElement *choice = NULL;
+ GstMessage *message = NULL;
+ GSList *errors = NULL;
+ GstBus *bus = gst_bus_new ();
+ GstPad *el_pad = NULL;
+ GstCaps *el_caps = NULL;
+ gboolean no_match = TRUE;
+
+ /* We don't treat sound server sinks special. Our policy is that sound
+ * server sinks that have a rank must not auto-spawn a daemon under any
+ * circumstances, so there's nothing for us to worry about here */
+ list = gst_registry_feature_filter (gst_registry_get (),
+ (GstPluginFeatureFilter) gst_auto_detect_factory_filter, FALSE, self);
+ list =
+ g_list_sort (list, (GCompareFunc) gst_plugin_feature_rank_compare_func);
+
+ GST_LOG_OBJECT (self, "Trying to find usable %s elements ...",
+ self->media_klass_lc);
+
+ for (item = list; item != NULL; item = item->next) {
+ GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
+ GstElement *el;
+
+ if ((el = create_element_with_pretty_name (self, f))) {
+ GstStateChangeReturn ret;
+
+ GST_DEBUG_OBJECT (self, "Testing %s", GST_OBJECT_NAME (f));
+
+ /* If autodetect has been provided with filter caps,
+ * accept only elements that match with the filter caps */
+ if (self->filter_caps) {
+ el_pad = gst_element_get_static_pad (el, self->type_klass_lc);
+ el_caps = gst_pad_query_caps (el_pad, NULL);
+ gst_object_unref (el_pad);
+ GST_DEBUG_OBJECT (self,
+ "Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
+ self->filter_caps, el_caps);
+ no_match = !gst_caps_can_intersect (self->filter_caps, el_caps);
+ gst_caps_unref (el_caps);
+
+ if (no_match) {
+ GST_DEBUG_OBJECT (self, "Incompatible caps");
+ gst_object_unref (el);
+ continue;
+ } else {
+ GST_DEBUG_OBJECT (self, "Found compatible caps");
+ }
+ }
+
+ gst_element_set_bus (el, bus);
+ ret = gst_element_set_state (el, GST_STATE_READY);
+ if (ret == GST_STATE_CHANGE_SUCCESS) {
+ GST_DEBUG_OBJECT (self, "This worked!");
+ choice = el;
+ break;
+ }
+
+ /* collect all error messages */
+ while ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ERROR))) {
+ GST_DEBUG_OBJECT (self, "error message %" GST_PTR_FORMAT, message);
+ errors = g_slist_append (errors, message);
+ }
+
+ gst_element_set_state (el, GST_STATE_NULL);
+ gst_object_unref (el);
+ }
+ }
+
+ GST_DEBUG_OBJECT (self, "done trying");
+ if (!choice) {
+ if (errors) {
+ /* FIXME: we forward the first error for now; but later on it might make
+ * sense to actually analyse them */
+ message = gst_message_ref (GST_MESSAGE (errors->data));
+ GST_DEBUG_OBJECT (self, "reposting message %p", message);
+ gst_element_post_message (GST_ELEMENT_CAST (self), message);
+ } else {
+ /* send warning message to application and use a fakesrc */
+ GST_ELEMENT_WARNING (self, RESOURCE, NOT_FOUND, (NULL),
+ ("Failed to find a usable %s %s", self->media_klass_lc,
+ self->type_klass_lc));
+ choice = gst_auto_detect_create_fake_element (self);
+ gst_element_set_state (choice, GST_STATE_READY);
+ }
+ }
+ gst_object_unref (bus);
+ gst_plugin_feature_list_free (list);
+ g_slist_foreach (errors, (GFunc) gst_mini_object_unref, NULL);
+ g_slist_free (errors);
+
+ return choice;
+}
+
+static gboolean
+gst_auto_detect_detect (GstAutoDetect * self)
+{
+ GstElement *kid;
+ GstAutoDetectClass *klass = GST_AUTO_DETECT_GET_CLASS (self);
+ gst_auto_detect_clear_kid (self);
+
+ /* find element */
+ GST_DEBUG_OBJECT (self, "Creating new kid");
+ if (!(kid = gst_auto_detect_find_best (self)))
+ goto no_sink;
+
+ g_object_set (G_OBJECT (kid), "sync", self->sync, NULL);
+ if (klass->configure) {
+ klass->configure (self, kid);
+ }
+
+ self->kid = kid;
+ /* Ensure the child is brought up to the right state to match the parent.
+ * Although it's currently always in READY and we're always doing NULL->READY.
+ */
+ if (GST_STATE (self->kid) < GST_STATE (self))
+ gst_element_set_state (self->kid, GST_STATE (self));
+
+ gst_bin_add (GST_BIN (self), kid);
+
+ /* attach ghost pad */
+ GST_DEBUG_OBJECT (self, "Re-assigning ghostpad");
+ if (!gst_auto_detect_attach_ghost_pad (self))
+ goto target_failed;
+
+ GST_DEBUG_OBJECT (self, "done changing auto %s %s", self->media_klass_lc,
+ self->type_klass_lc);
+
+ return TRUE;
+
+ /* ERRORS */
+no_sink:
+ {
+ GST_ELEMENT_ERROR (self, LIBRARY, INIT, (NULL),
+ ("Failed to find a supported audio sink"));
+ return FALSE;
+ }
+target_failed:
+ {
+ GST_ELEMENT_ERROR (self, LIBRARY, INIT, (NULL),
+ ("Failed to set target pad"));
+ return FALSE;
+ }
+}
+
+static GstStateChangeReturn
+gst_auto_detect_change_state (GstElement * element, GstStateChange transition)
+{
+ GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
+ GstAutoDetect *sink = GST_AUTO_DETECT (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ if (!gst_auto_detect_detect (sink))
+ return GST_STATE_CHANGE_FAILURE;
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+ if (ret == GST_STATE_CHANGE_FAILURE)
+ return ret;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ gst_auto_detect_reset (sink);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static void
+gst_auto_detect_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstAutoDetect *self = GST_AUTO_DETECT (object);
+
+ switch (prop_id) {
+ case PROP_CAPS:
+ if (self->filter_caps)
+ gst_caps_unref (self->filter_caps);
+ self->filter_caps = gst_caps_copy (gst_value_get_caps (value));
+ break;
+ case PROP_SYNC:
+ self->sync = g_value_get_boolean (value);
+ if (self->kid)
+ g_object_set_property (G_OBJECT (self->kid), pspec->name, value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_auto_detect_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstAutoDetect *self = GST_AUTO_DETECT (object);
+
+ switch (prop_id) {
+ case PROP_CAPS:
+ gst_value_set_caps (value, self->filter_caps);
+ break;
+ case PROP_SYNC:
+ g_value_set_boolean (value, self->sync);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
static gboolean
plugin_init (GstPlugin * plugin)
#ifndef __GST_AUTO_DETECT_H__
#define __GST_AUTO_DETECT_H__
+G_BEGIN_DECLS
+
GST_DEBUG_CATEGORY_EXTERN (autodetect_debug);
#define GST_CAT_DEFAULT autodetect_debug
-GstElement * gst_auto_create_element_with_pretty_name (
- GstElement * autodetect, GstElementFactory * factory, const gchar *suffix);
+#define GST_TYPE_AUTO_DETECT (gst_auto_detect_get_type ())
+#define GST_AUTO_DETECT(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_AUTO_DETECT, GstAutoDetect))
+#define GST_AUTO_DETECT_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_AUTO_DETECT, GstAutoDetectClass))
+#define GST_IS_AUTO_DETECT(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_AUTO_DETECT))
+#define GST_IS_AUTO_DETECT_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AUTO_DETECT))
+#define GST_AUTO_DETECT_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_AUTO_DETECT, GstAutoDetectClass))
+
+typedef struct _GstAutoDetect {
+ GstBin parent;
+
+ /* configuration for subclasses */
+ const gchar *media_klass; /* Audio/Video/... */
+ GstElementFlags flag; /* GST_ELEMENT_FLAG_{SINK/SOURCE} */
+
+ /* explicit pointers to stuff used */
+ GstPad *pad;
+ GstCaps *filter_caps;
+ gboolean sync;
+
+ /* < private > */
+ GstElement *kid;
+ const gchar *type_klass; /* Source/Sink */
+ const gchar *media_klass_lc, *type_klass_lc; /* lower case versions */
+
+} GstAutoDetect;
+
+typedef struct _GstAutoDetectClass {
+ GstBinClass parent_class;
+
+ /*< public >*/
+ /* virtual methods for subclasses */
+ void (*configure)(GstAutoDetect *self, GstElement *kid);
+} GstAutoDetectClass;
+
+GType gst_auto_detect_get_type (void);
+G_END_DECLS
#endif /* __GST_AUTO_DETECT_H__ */
#include "config.h"
#endif
-#include <string.h>
-
#include "gstautovideosink.h"
-#include "gstautodetect.h"
#define DEFAULT_TS_OFFSET 0
-#define DEFAULT_SYNC TRUE
/* Properties */
enum
{
PROP_0,
- PROP_CAPS,
PROP_TS_OFFSET,
- PROP_SYNC,
};
-static GstStateChangeReturn
-gst_auto_video_sink_change_state (GstElement * element,
- GstStateChange transition);
-static void gst_auto_video_sink_dispose (GstAutoVideoSink * sink);
-static void gst_auto_video_sink_clear_kid (GstAutoVideoSink * sink);
-
static void gst_auto_video_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_auto_video_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
+static void gst_auto_video_sink_configure (GstAutoDetect * autodetect,
+ GstElement * kid);
-#define gst_auto_video_sink_parent_class parent_class
-G_DEFINE_TYPE (GstAutoVideoSink, gst_auto_video_sink, GST_TYPE_BIN);
+G_DEFINE_TYPE (GstAutoVideoSink, gst_auto_video_sink, GST_TYPE_AUTO_DETECT);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
static void
gst_auto_video_sink_class_init (GstAutoVideoSinkClass * klass)
{
- GObjectClass *gobject_class;
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
+ GstAutoDetectClass *aklass = GST_AUTO_DETECT_CLASS (klass);
- gobject_class = G_OBJECT_CLASS (klass);
- gobject_class->dispose = (GObjectFinalizeFunc) gst_auto_video_sink_dispose;
gobject_class->set_property = gst_auto_video_sink_set_property;
gobject_class->get_property = gst_auto_video_sink_get_property;
- eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_video_sink_change_state);
- /**
- * GstAutoVideoSink:filter-caps:
- *
- * This property will filter out candidate sinks that can handle the specified
- * caps. By default only video sinks that support raw rgb and yuv video
- * are selected.
- *
- * This property can only be set before the element goes to the READY state.
- */
- g_object_class_install_property (gobject_class, PROP_CAPS,
- g_param_spec_boxed ("filter-caps", "Filter caps",
- "Filter sink candidates using these caps.", GST_TYPE_CAPS,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ aklass->configure = gst_auto_video_sink_configure;
g_object_class_install_property (gobject_class, PROP_TS_OFFSET,
g_param_spec_int64 ("ts-offset", "TS Offset",
"Timestamp offset in nanoseconds", G_MININT64, G_MAXINT64,
DEFAULT_TS_OFFSET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- g_object_class_install_property (gobject_class, PROP_SYNC,
- g_param_spec_boolean ("sync", "Sync",
- "Sync on the clock", DEFAULT_SYNC,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&sink_template));
gst_element_class_set_static_metadata (eklass, "Auto video sink",
}
static void
-gst_auto_video_sink_dispose (GstAutoVideoSink * sink)
-{
- gst_auto_video_sink_clear_kid (sink);
-
- if (sink->filter_caps)
- gst_caps_unref (sink->filter_caps);
- sink->filter_caps = NULL;
-
- G_OBJECT_CLASS (parent_class)->dispose ((GObject *) sink);
-}
-
-static void
-gst_auto_video_sink_clear_kid (GstAutoVideoSink * sink)
-{
- if (sink->kid) {
- gst_element_set_state (sink->kid, GST_STATE_NULL);
- gst_bin_remove (GST_BIN (sink), sink->kid);
- sink->kid = NULL;
- /* Don't lose the SINK flag */
- GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_FLAG_SINK);
- }
-}
-
-/*
- * Hack to make initial linking work; ideally, this'd work even when
- * no target has been assigned to the ghostpad yet.
- */
-
-static void
-gst_auto_video_sink_reset (GstAutoVideoSink * sink)
-{
- GstPad *targetpad;
-
- /* Remove any existing element */
- gst_auto_video_sink_clear_kid (sink);
-
- /* fakesink placeholder */
- sink->kid = gst_element_factory_make ("fakesink", "tempsink");
- gst_bin_add (GST_BIN (sink), sink->kid);
-
- /* pad, setting this target should always work */
- targetpad = gst_element_get_static_pad (sink->kid, "sink");
- gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
- gst_object_unref (targetpad);
-}
-
-static GstStaticCaps raw_caps = GST_STATIC_CAPS ("video/x-raw");
-
-static void
gst_auto_video_sink_init (GstAutoVideoSink * sink)
{
- sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
- gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
+ GstAutoDetect *autodetect = GST_AUTO_DETECT (sink);
- gst_auto_video_sink_reset (sink);
+ autodetect->media_klass = "Video";
+ autodetect->flag = GST_ELEMENT_FLAG_SINK;
- /* set the default raw video caps */
- sink->filter_caps = gst_static_caps_get (&raw_caps);
sink->ts_offset = DEFAULT_TS_OFFSET;
- sink->sync = DEFAULT_SYNC;
-
- /* mark as sink */
- GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_FLAG_SINK);
-}
-
-static gboolean
-gst_auto_video_sink_factory_filter (GstPluginFeature * feature, gpointer data)
-{
- guint rank;
- const gchar *klass;
-
- /* we only care about element factories */
- if (!GST_IS_ELEMENT_FACTORY (feature))
- return FALSE;
-
- /* video sinks */
- klass = gst_element_factory_get_metadata (GST_ELEMENT_FACTORY (feature),
- GST_ELEMENT_METADATA_KLASS);
- if (!(strstr (klass, "Sink") && strstr (klass, "Video")))
- return FALSE;
-
- /* only select elements with autoplugging rank */
- rank = gst_plugin_feature_get_rank (feature);
- if (rank < GST_RANK_MARGINAL)
- return FALSE;
-
- return TRUE;
-}
-
-static GstElement *
-gst_auto_video_sink_find_best (GstAutoVideoSink * sink)
-{
- GList *list, *item;
- GstElement *choice = NULL;
- GstMessage *message = NULL;
- GSList *errors = NULL;
- GstBus *bus = gst_bus_new ();
- GstPad *el_pad = NULL;
- GstCaps *el_caps = NULL;
- gboolean no_match = TRUE;
-
- list = gst_registry_feature_filter (gst_registry_get (),
- (GstPluginFeatureFilter) gst_auto_video_sink_factory_filter, FALSE, sink);
- list =
- g_list_sort (list, (GCompareFunc) gst_plugin_feature_rank_compare_func);
-
- GST_LOG_OBJECT (sink, "Trying to find usable video devices ...");
-
- for (item = list; item != NULL; item = item->next) {
- GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
- GstElement *el;
-
- if ((el = gst_auto_create_element_with_pretty_name (GST_ELEMENT_CAST (sink),
- f, "sink"))) {
- GstStateChangeReturn ret;
-
- GST_DEBUG_OBJECT (sink, "Testing %s", GST_OBJECT_NAME (f));
-
- /* If autovideosink has been provided with filter caps,
- * accept only sinks that match with the filter caps */
- if (sink->filter_caps) {
- el_pad = gst_element_get_static_pad (GST_ELEMENT (el), "sink");
- el_caps = gst_pad_query_caps (el_pad, NULL);
- gst_object_unref (el_pad);
- GST_DEBUG_OBJECT (sink,
- "Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
- sink->filter_caps, el_caps);
- no_match = !gst_caps_can_intersect (sink->filter_caps, el_caps);
- gst_caps_unref (el_caps);
-
- if (no_match) {
- GST_DEBUG_OBJECT (sink, "Incompatible caps");
- gst_object_unref (el);
- continue;
- } else {
- GST_DEBUG_OBJECT (sink, "Found compatible caps");
- }
- }
-
- gst_element_set_bus (el, bus);
- ret = gst_element_set_state (el, GST_STATE_READY);
- if (ret == GST_STATE_CHANGE_SUCCESS) {
- GST_DEBUG_OBJECT (sink, "This worked!");
- choice = el;
- break;
- }
-
- /* collect all error messages */
- while ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ERROR))) {
- GST_DEBUG_OBJECT (sink, "error message %" GST_PTR_FORMAT, message);
- errors = g_slist_append (errors, message);
- }
-
- gst_element_set_state (el, GST_STATE_NULL);
- gst_object_unref (el);
- }
- }
-
- GST_DEBUG_OBJECT (sink, "done trying");
- if (!choice) {
- if (errors) {
- /* FIXME: we forward the first error for now; but later on it might make
- * sense to actually analyse them */
- gst_message_ref (GST_MESSAGE (errors->data));
- GST_DEBUG_OBJECT (sink, "reposting message %p", errors->data);
- gst_element_post_message (GST_ELEMENT (sink), GST_MESSAGE (errors->data));
- } else {
- /* send warning message to application and use a fakesink */
- GST_ELEMENT_WARNING (sink, RESOURCE, NOT_FOUND, (NULL),
- ("Failed to find a usable video sink"));
- choice = gst_element_factory_make ("fakesink", "fake-video-sink");
- if (g_object_class_find_property (G_OBJECT_GET_CLASS (choice), "sync"))
- g_object_set (choice, "sync", TRUE, NULL);
- gst_element_set_state (choice, GST_STATE_READY);
- }
- }
- gst_object_unref (bus);
- gst_plugin_feature_list_free (list);
- g_slist_foreach (errors, (GFunc) gst_mini_object_unref, NULL);
- g_slist_free (errors);
-
- return choice;
}
-static gboolean
-gst_auto_video_sink_detect (GstAutoVideoSink * sink)
-{
- GstElement *esink;
- GstPad *targetpad;
-
- gst_auto_video_sink_clear_kid (sink);
-
- /* find element */
- GST_DEBUG_OBJECT (sink, "Creating new kid");
- if (!(esink = gst_auto_video_sink_find_best (sink)))
- goto no_sink;
-
- g_object_set (G_OBJECT (esink), "ts-offset", sink->ts_offset, NULL);
- g_object_set (G_OBJECT (esink), "sync", sink->sync, NULL);
-
- sink->kid = esink;
- gst_bin_add (GST_BIN (sink), esink);
-
- /* attach ghost pad */
- GST_DEBUG_OBJECT (sink, "Re-assigning ghostpad");
- targetpad = gst_element_get_static_pad (sink->kid, "sink");
- if (!gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad))
- goto target_failed;
-
- gst_object_unref (targetpad);
- GST_DEBUG_OBJECT (sink, "done changing auto video sink");
-
- return TRUE;
-
- /* ERRORS */
-no_sink:
- {
- GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
- ("Failed to find a supported video sink"));
- return FALSE;
- }
-target_failed:
- {
- GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
- ("Failed to set target pad"));
- gst_object_unref (targetpad);
- return FALSE;
- }
-}
-
-static GstStateChangeReturn
-gst_auto_video_sink_change_state (GstElement * element,
- GstStateChange transition)
+static void
+gst_auto_video_sink_configure (GstAutoDetect * autodetect, GstElement * kid)
{
- GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
- GstAutoVideoSink *sink = GST_AUTO_VIDEO_SINK (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_NULL_TO_READY:
- if (!gst_auto_video_sink_detect (sink))
- return GST_STATE_CHANGE_FAILURE;
- break;
- default:
- break;
- }
-
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+ GstAutoVideoSink *self = GST_AUTO_VIDEO_SINK (autodetect);
- switch (transition) {
- case GST_STATE_CHANGE_READY_TO_NULL:
- gst_auto_video_sink_reset (sink);
- break;
- default:
- break;
- }
-
- return ret;
+ g_object_set (G_OBJECT (kid), "ts-offset", self->ts_offset, NULL);
}
static void
const GValue * value, GParamSpec * pspec)
{
GstAutoVideoSink *sink = GST_AUTO_VIDEO_SINK (object);
+ GstAutoDetect *autodetect = (GstAutoDetect *) sink;
switch (prop_id) {
- case PROP_CAPS:
- if (sink->filter_caps)
- gst_caps_unref (sink->filter_caps);
- sink->filter_caps = gst_caps_copy (gst_value_get_caps (value));
- break;
case PROP_TS_OFFSET:
sink->ts_offset = g_value_get_int64 (value);
- if (sink->kid)
- g_object_set_property (G_OBJECT (sink->kid), pspec->name, value);
- break;
- case PROP_SYNC:
- sink->sync = g_value_get_boolean (value);
- if (sink->kid)
- g_object_set_property (G_OBJECT (sink->kid), pspec->name, value);
+ if (autodetect->kid)
+ g_object_set_property (G_OBJECT (autodetect->kid), pspec->name, value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
GstAutoVideoSink *sink = GST_AUTO_VIDEO_SINK (object);
switch (prop_id) {
- case PROP_CAPS:{
- gst_value_set_caps (value, sink->filter_caps);
- break;
- }
case PROP_TS_OFFSET:
g_value_set_int64 (value, sink->ts_offset);
break;
- case PROP_SYNC:
- g_value_set_boolean (value, sink->sync);
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
#define __GST_AUTO_VIDEO_SINK_H__
#include <gst/gst.h>
+#include "gstautodetect.h"
G_BEGIN_DECLS
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AUTO_VIDEO_SINK))
typedef struct _GstAutoVideoSink {
- GstBin parent;
+ GstAutoDetect parent;
- /* explicit pointers to stuff used */
- GstPad *pad;
- GstElement *kid;
- GstCaps *filter_caps;
GstClockTimeDiff ts_offset;
- gboolean sync;
} GstAutoVideoSink;
typedef struct _GstAutoVideoSinkClass {
- GstBinClass parent_class;
+ GstAutoDetectClass parent_class;
} GstAutoVideoSinkClass;
GType gst_auto_video_sink_get_type (void);
#include "config.h"
#endif
-#include <string.h>
-
#include "gstautovideosrc.h"
-#include "gstautodetect.h"
-
-/* Properties */
-enum
-{
- PROP_0,
- PROP_CAPS,
-};
-
-static GstStateChangeReturn
-gst_auto_video_src_change_state (GstElement * element,
- GstStateChange transition);
-static void gst_auto_video_src_dispose (GstAutoVideoSrc * src);
-static void gst_auto_video_src_clear_kid (GstAutoVideoSrc * src);
-
-static void gst_auto_video_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_auto_video_src_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-#define gst_auto_video_src_parent_class parent_class
-G_DEFINE_TYPE (GstAutoVideoSrc, gst_auto_video_src, GST_TYPE_BIN);
+G_DEFINE_TYPE (GstAutoVideoSrc, gst_auto_video_src, GST_TYPE_AUTO_DETECT);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
static void
gst_auto_video_src_class_init (GstAutoVideoSrcClass * klass)
{
- GObjectClass *gobject_class;
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
- gobject_class = G_OBJECT_CLASS (klass);
- gobject_class->dispose = (GObjectFinalizeFunc) gst_auto_video_src_dispose;
- gobject_class->set_property = gst_auto_video_src_set_property;
- gobject_class->get_property = gst_auto_video_src_get_property;
-
- eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_video_src_change_state);
-
- /**
- * GstAutoVideoSrc:filter-caps:
- *
- * This property will filter out candidate sources that can handle the specified
- * caps. By default only video sources that support raw rgb and yuv video
- * are selected.
- *
- * This property can only be set before the element goes to the READY state.
- */
- g_object_class_install_property (gobject_class, PROP_CAPS,
- g_param_spec_boxed ("filter-caps", "Filter caps",
- "Filter src candidates using these caps.", GST_TYPE_CAPS,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&src_template));
gst_element_class_set_static_metadata (eklass, "Auto video source",
}
static void
-gst_auto_video_src_dispose (GstAutoVideoSrc * src)
-{
- gst_auto_video_src_clear_kid (src);
-
- if (src->filter_caps)
- gst_caps_unref (src->filter_caps);
- src->filter_caps = NULL;
-
- G_OBJECT_CLASS (parent_class)->dispose ((GObject *) src);
-}
-
-static void
-gst_auto_video_src_clear_kid (GstAutoVideoSrc * src)
-{
- if (src->kid) {
- gst_element_set_state (src->kid, GST_STATE_NULL);
- gst_bin_remove (GST_BIN (src), src->kid);
- src->kid = NULL;
- /* Don't loose SOURCE flag */
- GST_OBJECT_FLAG_SET (src, GST_ELEMENT_FLAG_SOURCE);
- }
-}
-
-/*
- * Hack to make initial linking work; ideally, this'd work even when
- * no target has been assigned to the ghostpad yet.
- */
-
-static void
-gst_auto_video_src_reset (GstAutoVideoSrc * src)
-{
- GstPad *targetpad;
-
- /* Remove any existing element */
- gst_auto_video_src_clear_kid (src);
-
- /* fakesrc placeholder */
- src->kid = gst_element_factory_make ("fakesrc", "tempsrc");
- gst_bin_add (GST_BIN (src), src->kid);
-
- /* pad */
- targetpad = gst_element_get_static_pad (src->kid, "src");
- gst_ghost_pad_set_target (GST_GHOST_PAD (src->pad), targetpad);
- gst_object_unref (targetpad);
-}
-
-static GstStaticCaps raw_caps = GST_STATIC_CAPS ("video/x-raw");
-
-static void
gst_auto_video_src_init (GstAutoVideoSrc * src)
{
- src->pad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
- gst_element_add_pad (GST_ELEMENT (src), src->pad);
-
- gst_auto_video_src_reset (src);
-
- /* set the default raw video caps */
- src->filter_caps = gst_static_caps_get (&raw_caps);
-
- /* mark as source */
- GST_OBJECT_FLAG_SET (src, GST_ELEMENT_FLAG_SOURCE);
-}
-
-static gboolean
-gst_auto_video_src_factory_filter (GstPluginFeature * feature, gpointer data)
-{
- guint rank;
- const gchar *klass;
-
- /* we only care about element factories */
- if (!GST_IS_ELEMENT_FACTORY (feature))
- return FALSE;
-
- /* video sources */
- klass = gst_element_factory_get_metadata (GST_ELEMENT_FACTORY (feature),
- GST_ELEMENT_METADATA_KLASS);
- if (!(strstr (klass, "Source") && strstr (klass, "Video")))
- return FALSE;
-
- /* only select elements with autoplugging rank */
- rank = gst_plugin_feature_get_rank (feature);
- if (rank < GST_RANK_MARGINAL)
- return FALSE;
-
- return TRUE;
-}
-
-static GstElement *
-gst_auto_video_src_find_best (GstAutoVideoSrc * src)
-{
- GList *list, *item;
- GstElement *choice = NULL;
- GstMessage *message = NULL;
- GSList *errors = NULL;
- GstBus *bus = gst_bus_new ();
- GstPad *el_pad = NULL;
- GstCaps *el_caps = NULL;
- gboolean no_match = TRUE;
-
- list = gst_registry_feature_filter (gst_registry_get (),
- (GstPluginFeatureFilter) gst_auto_video_src_factory_filter, FALSE, src);
- list =
- g_list_sort (list, (GCompareFunc) gst_plugin_feature_rank_compare_func);
-
- GST_LOG_OBJECT (src, "Trying to find usable video devices ...");
-
- for (item = list; item != NULL; item = item->next) {
- GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
- GstElement *el;
-
- if ((el = gst_auto_create_element_with_pretty_name (GST_ELEMENT_CAST (src),
- f, "src"))) {
- GstStateChangeReturn ret;
-
- GST_DEBUG_OBJECT (src, "Testing %s", GST_OBJECT_NAME (f));
-
- /* If AutoVideoSrc has been provided with filter caps,
- * accept only sources that match with the filter caps */
- if (src->filter_caps) {
- el_pad = gst_element_get_static_pad (GST_ELEMENT (el), "src");
- el_caps = gst_pad_query_caps (el_pad, NULL);
- gst_object_unref (el_pad);
- GST_DEBUG_OBJECT (src,
- "Checking caps: %" GST_PTR_FORMAT " vs. %" GST_PTR_FORMAT,
- src->filter_caps, el_caps);
- no_match = !gst_caps_can_intersect (src->filter_caps, el_caps);
- gst_caps_unref (el_caps);
-
- if (no_match) {
- GST_DEBUG_OBJECT (src, "Incompatible caps");
- gst_object_unref (el);
- continue;
- } else {
- GST_DEBUG_OBJECT (src, "Found compatible caps");
- }
- }
-
- gst_element_set_bus (el, bus);
- ret = gst_element_set_state (el, GST_STATE_READY);
- if (ret == GST_STATE_CHANGE_SUCCESS) {
- GST_DEBUG_OBJECT (src, "This worked!");
- choice = el;
- break;
- }
-
- /* collect all error messages */
- while ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ERROR))) {
- GST_DEBUG_OBJECT (src, "error message %" GST_PTR_FORMAT, message);
- errors = g_slist_append (errors, message);
- }
-
- gst_element_set_state (el, GST_STATE_NULL);
- gst_object_unref (el);
- }
- }
-
- GST_DEBUG_OBJECT (src, "done trying");
- if (!choice) {
- if (errors) {
- /* FIXME: we forward the first error for now; but later on it might make
- * sense to actually analyse them */
- gst_message_ref (GST_MESSAGE (errors->data));
- GST_DEBUG_OBJECT (src, "reposting message %p", errors->data);
- gst_element_post_message (GST_ELEMENT (src), GST_MESSAGE (errors->data));
- } else {
- /* send warning message to application and use a fakesrc */
- GST_ELEMENT_WARNING (src, RESOURCE, NOT_FOUND, (NULL),
- ("Failed to find a usable video source"));
- choice = gst_element_factory_make ("fakesrc", "fake-video-src");
- if (g_object_class_find_property (G_OBJECT_GET_CLASS (choice), "sync"))
- g_object_set (choice, "sync", TRUE, NULL);
- gst_element_set_state (choice, GST_STATE_READY);
- }
- }
- gst_object_unref (bus);
- gst_plugin_feature_list_free (list);
- g_slist_foreach (errors, (GFunc) gst_mini_object_unref, NULL);
- g_slist_free (errors);
-
- return choice;
-}
-
-static gboolean
-gst_auto_video_src_detect (GstAutoVideoSrc * src)
-{
- GstElement *esrc;
- GstPad *targetpad;
-
- gst_auto_video_src_clear_kid (src);
-
- /* find element */
- GST_DEBUG_OBJECT (src, "Creating new kid");
- if (!(esrc = gst_auto_video_src_find_best (src)))
- goto no_src;
-
- src->kid = esrc;
- gst_bin_add (GST_BIN (src), esrc);
-
- /* attach ghost pad */
- GST_DEBUG_OBJECT (src, "Re-assigning ghostpad");
- targetpad = gst_element_get_static_pad (src->kid, "src");
- if (!gst_ghost_pad_set_target (GST_GHOST_PAD (src->pad), targetpad))
- goto target_failed;
-
- gst_object_unref (targetpad);
- GST_DEBUG_OBJECT (src, "done changing auto video source");
-
- return TRUE;
-
- /* ERRORS */
-no_src:
- {
- GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL),
- ("Failed to find a supported video source"));
- return FALSE;
- }
-target_failed:
- {
- GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL),
- ("Failed to set target pad"));
- gst_object_unref (targetpad);
- return FALSE;
- }
-}
-
-static GstStateChangeReturn
-gst_auto_video_src_change_state (GstElement * element,
- GstStateChange transition)
-{
- GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
- GstAutoVideoSrc *src = GST_AUTO_VIDEO_SRC (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_NULL_TO_READY:
- if (!gst_auto_video_src_detect (src))
- return GST_STATE_CHANGE_FAILURE;
- break;
- default:
- break;
- }
-
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-
- switch (transition) {
- case GST_STATE_CHANGE_READY_TO_NULL:
- gst_auto_video_src_reset (src);
- break;
- default:
- break;
- }
-
- return ret;
-}
-
-static void
-gst_auto_video_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstAutoVideoSrc *src = GST_AUTO_VIDEO_SRC (object);
-
- switch (prop_id) {
- case PROP_CAPS:
- if (src->filter_caps)
- gst_caps_unref (src->filter_caps);
- src->filter_caps = gst_caps_copy (gst_value_get_caps (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_auto_video_src_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- GstAutoVideoSrc *src = GST_AUTO_VIDEO_SRC (object);
+ GstAutoDetect *autodetect = GST_AUTO_DETECT (src);
- switch (prop_id) {
- case PROP_CAPS:{
- gst_value_set_caps (value, src->filter_caps);
- break;
- }
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
+ autodetect->media_klass = "Video";
+ autodetect->flag = GST_ELEMENT_FLAG_SOURCE;
}
#define __GST_AUTO_VIDEO_SRC_H__
#include <gst/gst.h>
+#include "gstautodetect.h"
G_BEGIN_DECLS
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AUTO_VIDEO_SRC))
typedef struct _GstAutoVideoSrc {
- GstBin parent;
-
- /* explicit pointers to stuff used */
- GstPad *pad;
- GstElement *kid;
- GstCaps *filter_caps;
+ GstAutoDetect parent;
} GstAutoVideoSrc;
typedef struct _GstAutoVideoSrcClass {
- GstBinClass parent_class;
+ GstAutoDetectClass parent_class;
} GstAutoVideoSrcClass;
GType gst_auto_video_src_get_type (void);
projects / platform / upstream / gst-plugins-good.git / commitdiff