From bf6a2f9afdf6890940eb8637dd1c3ffd574f80db Mon Sep 17 00:00:00 2001 From: Stefan Sauer Date: Wed, 19 Feb 2014 21:55:52 +0100 Subject: [PATCH] autodetect: use a common baseclass This makes the actual elements super simple. We're using the ELEMENT_FLAG to configure source/sink and a string for the Audio/Video type. --- gst/autodetect/gstautoaudiosink.c | 333 ++---------------------- gst/autodetect/gstautoaudiosink.h | 10 +- gst/autodetect/gstautoaudiosrc.c | 347 +------------------------ gst/autodetect/gstautoaudiosrc.h | 10 +- gst/autodetect/gstautodetect.c | 415 +++++++++++++++++++++++++++++- gst/autodetect/gstautodetect.h | 45 +++- gst/autodetect/gstautovideosink.c | 319 ++--------------------- gst/autodetect/gstautovideosink.h | 10 +- gst/autodetect/gstautovideosrc.c | 333 +----------------------- gst/autodetect/gstautovideosrc.h | 10 +- 10 files changed, 506 insertions(+), 1326 deletions(-) diff --git a/gst/autodetect/gstautoaudiosink.c b/gst/autodetect/gstautoaudiosink.c index 9dc7e18147..1dfc4cebdb 100644 --- a/gst/autodetect/gstautoaudiosink.c +++ b/gst/autodetect/gstautoaudiosink.c @@ -39,35 +39,25 @@ #include "config.h" #endif -#include - #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, @@ -77,318 +67,45 @@ static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", static void gst_auto_audio_sink_class_init (GstAutoAudioSinkClass * klass) { - GObjectClass *gobject_class; - GstElementClass *eklass; + 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); - eklass = GST_ELEMENT_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", "Jan Schmidt "); } -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) +static void +gst_auto_audio_sink_configure (GstAutoDetect * autodetect, GstElement * kid) { - guint rank; - const gchar *klass; + GstAutoAudioSink *self = GST_AUTO_AUDIO_SINK (autodetect); - /* 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) -{ - 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; - } - - 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 @@ -396,22 +113,13 @@ gst_auto_audio_sink_set_property (GObject * object, guint prop_id, 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); @@ -426,16 +134,9 @@ gst_auto_audio_sink_get_property (GObject * object, guint prop_id, 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; diff --git a/gst/autodetect/gstautoaudiosink.h b/gst/autodetect/gstautoaudiosink.h index 6a049aee3f..24a0b25edf 100644 --- a/gst/autodetect/gstautoaudiosink.h +++ b/gst/autodetect/gstautoaudiosink.h @@ -21,6 +21,7 @@ #define __GST_AUTO_AUDIO_SINK_H__ #include +#include "gstautodetect.h" G_BEGIN_DECLS @@ -38,18 +39,13 @@ 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); diff --git a/gst/autodetect/gstautoaudiosrc.c b/gst/autodetect/gstautoaudiosrc.c index b63d6baf8b..e60b24c86a 100644 --- a/gst/autodetect/gstautoaudiosrc.c +++ b/gst/autodetect/gstautoaudiosrc.c @@ -40,30 +40,9 @@ #include "config.h" #endif -#include - #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, @@ -73,35 +52,10 @@ static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("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", @@ -109,302 +63,11 @@ gst_auto_audio_src_class_init (GstAutoAudioSrcClass * klass) "Stefan Kost "); } -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); + GstAutoDetect *autodetect = GST_AUTO_DETECT (src); - 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); - - 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; } diff --git a/gst/autodetect/gstautoaudiosrc.h b/gst/autodetect/gstautoaudiosrc.h index 99b9aa5be4..427cdaefbf 100644 --- a/gst/autodetect/gstautoaudiosrc.h +++ b/gst/autodetect/gstautoaudiosrc.h @@ -22,6 +22,7 @@ #define __GST_AUTO_AUDIO_SRC_H__ #include +#include "gstautodetect.h" G_BEGIN_DECLS @@ -39,16 +40,11 @@ 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); diff --git a/gst/autodetect/gstautodetect.c b/gst/autodetect/gstautodetect.c index 7d7feb5d0b..9497c0cf37 100644 --- a/gst/autodetect/gstautodetect.c +++ b/gst/autodetect/gstautodetect.c @@ -21,6 +21,7 @@ #include "config.h" #endif +#include #include #include @@ -33,20 +34,203 @@ 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); @@ -55,7 +239,226 @@ gst_auto_create_element_with_pretty_name (GstElement * autodetect, 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) diff --git a/gst/autodetect/gstautodetect.h b/gst/autodetect/gstautodetect.h index c366a0cc87..105c28929d 100644 --- a/gst/autodetect/gstautodetect.h +++ b/gst/autodetect/gstautodetect.h @@ -20,11 +20,52 @@ #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__ */ diff --git a/gst/autodetect/gstautovideosink.c b/gst/autodetect/gstautovideosink.c index 2163c6f16a..6eaee6600c 100644 --- a/gst/autodetect/gstautovideosink.c +++ b/gst/autodetect/gstautovideosink.c @@ -39,36 +39,25 @@ #include "config.h" #endif -#include - #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, @@ -78,39 +67,20 @@ static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("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", @@ -119,264 +89,23 @@ gst_auto_video_sink_class_init (GstAutoVideoSinkClass * klass) "Jan Schmidt "); } -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) +static void +gst_auto_video_sink_configure (GstAutoDetect * autodetect, GstElement * kid) { - guint rank; - const gchar *klass; + GstAutoVideoSink *self = GST_AUTO_VIDEO_SINK (autodetect); - /* 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) -{ - 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); - - 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 @@ -384,22 +113,13 @@ gst_auto_video_sink_set_property (GObject * object, guint prop_id, 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); @@ -414,16 +134,9 @@ gst_auto_video_sink_get_property (GObject * object, guint prop_id, 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; diff --git a/gst/autodetect/gstautovideosink.h b/gst/autodetect/gstautovideosink.h index dcc1d9894c..5b7db40fec 100644 --- a/gst/autodetect/gstautovideosink.h +++ b/gst/autodetect/gstautovideosink.h @@ -21,6 +21,7 @@ #define __GST_AUTO_VIDEO_SINK_H__ #include +#include "gstautodetect.h" G_BEGIN_DECLS @@ -38,18 +39,13 @@ 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); diff --git a/gst/autodetect/gstautovideosrc.c b/gst/autodetect/gstautovideosrc.c index c4c5fa4725..90018ac6d7 100644 --- a/gst/autodetect/gstautovideosrc.c +++ b/gst/autodetect/gstautovideosrc.c @@ -40,31 +40,9 @@ #include "config.h" #endif -#include - #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, @@ -74,30 +52,8 @@ static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("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", @@ -107,292 +63,11 @@ gst_auto_video_src_class_init (GstAutoVideoSrcClass * klass) "Stefan Kost "); } -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); + GstAutoDetect *autodetect = GST_AUTO_DETECT (src); - 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); - - 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; } diff --git a/gst/autodetect/gstautovideosrc.h b/gst/autodetect/gstautovideosrc.h index ec5d4fc8ac..e76cc7240f 100644 --- a/gst/autodetect/gstautovideosrc.h +++ b/gst/autodetect/gstautovideosrc.h @@ -22,6 +22,7 @@ #define __GST_AUTO_VIDEO_SRC_H__ #include +#include "gstautodetect.h" G_BEGIN_DECLS @@ -39,16 +40,11 @@ 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);