/* GStreamer * Copyright (C) 2011 David Schleef * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin Street, Suite 500, * Boston, MA 02110-1335, USA. */ /** * SECTION:element-gstdecklinksink * * The decklinksink element is a sink element for BlackMagic DeckLink * cards. * * * Example launch line * |[ * gst-launch -v videotestsrc ! decklinksink * ]| * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include "gstdecklink.h" #include "gstdecklinksink.h" #include GST_DEBUG_CATEGORY_STATIC (gst_decklink_sink_debug_category); #define GST_CAT_DEFAULT gst_decklink_sink_debug_category /* prototypes */ static void gst_decklink_sink_set_property (GObject * object, guint property_id, const GValue * value, GParamSpec * pspec); static void gst_decklink_sink_get_property (GObject * object, guint property_id, GValue * value, GParamSpec * pspec); static void gst_decklink_sink_dispose (GObject * object); static void gst_decklink_sink_finalize (GObject * object); static GstStateChangeReturn gst_decklink_sink_change_state (GstElement * element, GstStateChange transition); static GstClock *gst_decklink_sink_provide_clock (GstElement * element); static gboolean gst_decklink_sink_set_clock (GstElement * element, GstClock * clock); static GstIndex *gst_decklink_sink_get_index (GstElement * element); static void gst_decklink_sink_set_index (GstElement * element, GstIndex * index); static gboolean gst_decklink_sink_send_event (GstElement * element, GstEvent * event); static gboolean gst_decklink_sink_query (GstElement * element, GstQuery * query); static GstCaps *gst_decklink_sink_videosink_getcaps (GstPad * pad); static gboolean gst_decklink_sink_videosink_setcaps (GstPad * pad, GstCaps * caps); static gboolean gst_decklink_sink_videosink_acceptcaps (GstPad * pad, GstCaps * caps); static gboolean gst_decklink_sink_videosink_activate (GstPad * pad); static gboolean gst_decklink_sink_videosink_activatepush (GstPad * pad, gboolean active); static gboolean gst_decklink_sink_videosink_activatepull (GstPad * pad, gboolean active); static GstPadLinkReturn gst_decklink_sink_videosink_link (GstPad * pad, GstPad * peer); static GstFlowReturn gst_decklink_sink_videosink_chain (GstPad * pad, GstBuffer * buffer); static GstFlowReturn gst_decklink_sink_videosink_chainlist (GstPad * pad, GstBufferList * bufferlist); static gboolean gst_decklink_sink_videosink_event (GstPad * pad, GstEvent * event); static gboolean gst_decklink_sink_videosink_query (GstPad * pad, GstQuery * query); static GstFlowReturn gst_decklink_sink_videosink_bufferalloc (GstPad * pad, guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf); static GstIterator *gst_decklink_sink_videosink_iterintlink (GstPad * pad); static GstCaps *gst_decklink_sink_audiosink_getcaps (GstPad * pad); static gboolean gst_decklink_sink_audiosink_setcaps (GstPad * pad, GstCaps * caps); static gboolean gst_decklink_sink_audiosink_acceptcaps (GstPad * pad, GstCaps * caps); static gboolean gst_decklink_sink_audiosink_activate (GstPad * pad); static gboolean gst_decklink_sink_audiosink_activatepush (GstPad * pad, gboolean active); static gboolean gst_decklink_sink_audiosink_activatepull (GstPad * pad, gboolean active); static GstPadLinkReturn gst_decklink_sink_audiosink_link (GstPad * pad, GstPad * peer); static GstFlowReturn gst_decklink_sink_audiosink_chain (GstPad * pad, GstBuffer * buffer); static GstFlowReturn gst_decklink_sink_audiosink_chainlist (GstPad * pad, GstBufferList * bufferlist); static gboolean gst_decklink_sink_audiosink_event (GstPad * pad, GstEvent * event); static gboolean gst_decklink_sink_audiosink_query (GstPad * pad, GstQuery * query); static GstFlowReturn gst_decklink_sink_audiosink_bufferalloc (GstPad * pad, guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf); static GstIterator *gst_decklink_sink_audiosink_iterintlink (GstPad * pad); static void gst_decklink_sink_property_probe_interface_init (GstPropertyProbeInterface * iface); #ifdef _MSC_VER /* COM initialization/uninitialization thread */ static void gst_decklink_sink_com_thread (GstDecklinkSink * sink); #endif /* _MSC_VER */ enum { PROP_0, PROP_MODE, PROP_DEVICE }; /* pad templates */ /* the video sink pad template is created on the fly */ static GstStaticPadTemplate gst_decklink_sink_audiosink_template = GST_STATIC_PAD_TEMPLATE ("audiosink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("audio/x-raw-int,width=16,depth=16,channels=2,rate=48000") ); /* class initialization */ #define DEBUG_INIT(bla) \ GST_DEBUG_CATEGORY_INIT (gst_decklink_sink_debug_category, "decklinksink", 0, \ "debug category for decklinksink element"); static void gst_decklink_sink_init_interfaces (GType type) { static const GInterfaceInfo decklink_sink_propertyprobe_info = { (GInterfaceInitFunc) gst_decklink_sink_property_probe_interface_init, NULL, NULL, }; GST_DEBUG_CATEGORY_INIT (gst_decklink_sink_debug_category, "decklinksink", 0, "debug category for decklinksink element"); g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE, &decklink_sink_propertyprobe_info); } GST_BOILERPLATE_FULL (GstDecklinkSink, gst_decklink_sink, GstElement, GST_TYPE_ELEMENT, gst_decklink_sink_init_interfaces); static void gst_decklink_sink_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); GstPadTemplate *pad_template; pad_template = gst_pad_template_new ("videosink", GST_PAD_SINK, GST_PAD_ALWAYS, gst_decklink_mode_get_template_caps ()); gst_element_class_add_pad_template (element_class, pad_template); gst_object_unref (pad_template); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_decklink_sink_audiosink_template)); gst_element_class_set_metadata (element_class, "Decklink Sink", "Video/Sink", "Decklink Sink", "David Schleef "); } static void gst_decklink_sink_class_init (GstDecklinkSinkClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); gobject_class->set_property = gst_decklink_sink_set_property; gobject_class->get_property = gst_decklink_sink_get_property; gobject_class->dispose = gst_decklink_sink_dispose; gobject_class->finalize = gst_decklink_sink_finalize; element_class->change_state = GST_DEBUG_FUNCPTR (gst_decklink_sink_change_state); element_class->provide_clock = GST_DEBUG_FUNCPTR (gst_decklink_sink_provide_clock); element_class->set_clock = GST_DEBUG_FUNCPTR (gst_decklink_sink_set_clock); element_class->get_index = GST_DEBUG_FUNCPTR (gst_decklink_sink_get_index); element_class->set_index = GST_DEBUG_FUNCPTR (gst_decklink_sink_set_index); element_class->send_event = GST_DEBUG_FUNCPTR (gst_decklink_sink_send_event); element_class->query = GST_DEBUG_FUNCPTR (gst_decklink_sink_query); g_object_class_install_property (gobject_class, PROP_MODE, g_param_spec_enum ("mode", "Playback Mode", "Video Mode to use for playback", GST_TYPE_DECKLINK_MODE, GST_DECKLINK_MODE_NTSC, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT))); g_object_class_install_property (gobject_class, PROP_DEVICE, g_param_spec_int ("device", "Device", "Capture device instance to use", 0, G_MAXINT, 0, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT))); } static void gst_decklink_sink_init (GstDecklinkSink * decklinksink, GstDecklinkSinkClass * decklinksink_class) { decklinksink->videosinkpad = gst_pad_new_from_template (gst_element_class_get_pad_template (GST_ELEMENT_CLASS (decklinksink_class), "videosink"), "videosink"); gst_pad_set_getcaps_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_getcaps)); gst_pad_set_setcaps_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_setcaps)); gst_pad_set_acceptcaps_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_acceptcaps)); gst_pad_set_activate_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_activate)); gst_pad_set_activatepush_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_activatepush)); gst_pad_set_activatepull_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_activatepull)); gst_pad_set_link_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_link)); gst_pad_set_chain_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_chain)); gst_pad_set_chain_list_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_chainlist)); gst_pad_set_event_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_event)); gst_pad_set_query_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_query)); gst_pad_set_bufferalloc_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_bufferalloc)); gst_pad_set_iterate_internal_links_function (decklinksink->videosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_videosink_iterintlink)); gst_element_add_pad (GST_ELEMENT (decklinksink), decklinksink->videosinkpad); decklinksink->audiosinkpad = gst_pad_new_from_static_template (&gst_decklink_sink_audiosink_template, "audiosink"); gst_pad_set_getcaps_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_getcaps)); gst_pad_set_setcaps_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_setcaps)); gst_pad_set_acceptcaps_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_acceptcaps)); gst_pad_set_activate_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_activate)); gst_pad_set_activatepush_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_activatepush)); gst_pad_set_activatepull_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_activatepull)); gst_pad_set_link_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_link)); gst_pad_set_chain_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_chain)); gst_pad_set_chain_list_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_chainlist)); gst_pad_set_event_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_event)); gst_pad_set_query_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_query)); gst_pad_set_bufferalloc_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_bufferalloc)); gst_pad_set_iterate_internal_links_function (decklinksink->audiosinkpad, GST_DEBUG_FUNCPTR (gst_decklink_sink_audiosink_iterintlink)); gst_element_add_pad (GST_ELEMENT (decklinksink), decklinksink->audiosinkpad); GST_OBJECT_FLAG_SET (decklinksink, GST_ELEMENT_IS_SINK); decklinksink->cond = g_cond_new (); decklinksink->mutex = g_mutex_new (); decklinksink->audio_mutex = g_mutex_new (); decklinksink->audio_cond = g_cond_new (); decklinksink->mode = GST_DECKLINK_MODE_NTSC; decklinksink->device = 0; decklinksink->callback = new Output; decklinksink->callback->decklinksink = decklinksink; #ifdef _MSC_VER decklinksink->com_init_lock = g_mutex_new (); decklinksink->com_deinit_lock = g_mutex_new (); decklinksink->com_initialized = g_cond_new (); decklinksink->com_uninitialize = g_cond_new (); decklinksink->com_uninitialized = g_cond_new (); g_mutex_lock (decklinksink->com_init_lock); /* create the COM initialization thread */ g_thread_create ((GThreadFunc) gst_decklink_sink_com_thread, decklinksink, FALSE, NULL); /* wait until the COM thread signals that COM has been initialized */ g_cond_wait (decklinksink->com_initialized, decklinksink->com_init_lock); g_mutex_unlock (decklinksink->com_init_lock); #endif /* _MSC_VER */ } void gst_decklink_sink_set_property (GObject * object, guint property_id, const GValue * value, GParamSpec * pspec) { GstDecklinkSink *decklinksink; g_return_if_fail (GST_IS_DECKLINK_SINK (object)); decklinksink = GST_DECKLINK_SINK (object); switch (property_id) { case PROP_MODE: decklinksink->mode = (GstDecklinkModeEnum) g_value_get_enum (value); break; case PROP_DEVICE: decklinksink->device = g_value_get_int (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } void gst_decklink_sink_get_property (GObject * object, guint property_id, GValue * value, GParamSpec * pspec) { GstDecklinkSink *decklinksink; g_return_if_fail (GST_IS_DECKLINK_SINK (object)); decklinksink = GST_DECKLINK_SINK (object); switch (property_id) { case PROP_MODE: g_value_set_enum (value, decklinksink->mode); break; case PROP_DEVICE: g_value_set_int (value, decklinksink->device); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } #ifdef _MSC_VER static void gst_decklink_sink_com_thread (GstDecklinkSink * sink) { HRESULT res; g_mutex_lock (sink->com_init_lock); /* Initialize COM with a MTA for this process. This thread will * be the first one to enter the apartement and the last one to leave * it, unitializing COM properly */ res = CoInitializeEx (0, COINIT_MULTITHREADED); if (res == S_FALSE) GST_WARNING_OBJECT (sink, "COM has been already initialized in the same process"); else if (res == RPC_E_CHANGED_MODE) GST_WARNING_OBJECT (sink, "The concurrency model of COM has changed."); else GST_INFO_OBJECT (sink, "COM intialized succesfully"); sink->comInitialized = TRUE; /* Signal other threads waiting on this condition that COM was initialized */ g_cond_signal (sink->com_initialized); g_mutex_unlock (sink->com_init_lock); /* Wait until the unitialize condition is met to leave the COM apartement */ g_mutex_lock (sink->com_deinit_lock); g_cond_wait (sink->com_uninitialize, sink->com_deinit_lock); CoUninitialize (); GST_INFO_OBJECT (sink, "COM unintialized succesfully"); sink->comInitialized = FALSE; g_cond_signal (sink->com_uninitialized); g_mutex_unlock (sink->com_deinit_lock); } #endif /* _MSC_VER */ void gst_decklink_sink_dispose (GObject * object) { g_return_if_fail (GST_IS_DECKLINK_SINK (object)); /* clean up as possible. may be called multiple times */ G_OBJECT_CLASS (parent_class)->dispose (object); } void gst_decklink_sink_finalize (GObject * object) { GstDecklinkSink *decklinksink; g_return_if_fail (GST_IS_DECKLINK_SINK (object)); decklinksink = GST_DECKLINK_SINK (object); /* clean up object here */ g_cond_free (decklinksink->cond); g_mutex_free (decklinksink->mutex); g_cond_free (decklinksink->audio_cond); g_mutex_free (decklinksink->audio_mutex); delete decklinksink->callback; #ifdef _MSC_VER /* signal the COM thread that it should uninitialize COM */ if (decklinksink->comInitialized) { g_mutex_lock (decklinksink->com_deinit_lock); g_cond_signal (decklinksink->com_uninitialize); g_cond_wait (decklinksink->com_uninitialized, decklinksink->com_deinit_lock); g_mutex_unlock (decklinksink->com_deinit_lock); } g_mutex_free (decklinksink->com_init_lock); g_mutex_free (decklinksink->com_deinit_lock); g_cond_free (decklinksink->com_initialized); g_cond_free (decklinksink->com_uninitialize); g_cond_free (decklinksink->com_uninitialized); #endif /* _MSC_VER */ G_OBJECT_CLASS (parent_class)->finalize (object); } static gboolean gst_decklink_sink_start (GstDecklinkSink * decklinksink) { HRESULT ret; const GstDecklinkMode *mode; BMDAudioSampleType sample_depth; decklinksink->decklink = gst_decklink_get_nth_device (decklinksink->device); if (!decklinksink->decklink) { GST_WARNING ("failed to get device %d", decklinksink->device); return FALSE; } ret = decklinksink->decklink->QueryInterface (IID_IDeckLinkOutput, (void **) &decklinksink->output); if (ret != S_OK) { GST_WARNING ("selected device does not have output interface"); return FALSE; } decklinksink->output->SetAudioCallback (decklinksink->callback); mode = gst_decklink_get_mode (decklinksink->mode); ret = decklinksink->output->EnableVideoOutput (mode->mode, bmdVideoOutputFlagDefault); if (ret != S_OK) { GST_WARNING ("failed to enable video output"); return FALSE; } //decklinksink->video_enabled = TRUE; decklinksink->output->SetScheduledFrameCompletionCallback (decklinksink-> callback); sample_depth = bmdAudioSampleType16bitInteger; ret = decklinksink->output->EnableAudioOutput (bmdAudioSampleRate48kHz, sample_depth, 2, bmdAudioOutputStreamContinuous); if (ret != S_OK) { GST_WARNING ("failed to enable audio output"); return FALSE; } decklinksink->audio_adapter = gst_adapter_new (); decklinksink->num_frames = 0; return TRUE; } static gboolean gst_decklink_sink_force_stop (GstDecklinkSink * decklinksink) { g_mutex_lock (decklinksink->mutex); decklinksink->stop = TRUE; g_cond_signal (decklinksink->cond); g_mutex_unlock (decklinksink->mutex); g_mutex_lock (decklinksink->audio_mutex); g_cond_signal (decklinksink->audio_cond); g_mutex_unlock (decklinksink->audio_mutex); return TRUE; } static gboolean gst_decklink_sink_stop (GstDecklinkSink * decklinksink) { decklinksink->output->StopScheduledPlayback (0, NULL, 0); decklinksink->output->DisableAudioOutput (); decklinksink->output->DisableVideoOutput (); decklinksink->output->Release (); decklinksink->output = NULL; decklinksink->decklink->Release (); decklinksink->decklink = NULL; return TRUE; } static GstStateChangeReturn gst_decklink_sink_change_state (GstElement * element, GstStateChange transition) { GstDecklinkSink *decklinksink; GstStateChangeReturn ret; g_return_val_if_fail (GST_IS_DECKLINK_SINK (element), GST_STATE_CHANGE_FAILURE); decklinksink = GST_DECKLINK_SINK (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: if (!gst_decklink_sink_start (decklinksink)) { ret = GST_STATE_CHANGE_FAILURE; goto out; } break; case GST_STATE_CHANGE_READY_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; default: break; } ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: gst_decklink_sink_force_stop (decklinksink); break; case GST_STATE_CHANGE_PAUSED_TO_READY: break; case GST_STATE_CHANGE_READY_TO_NULL: gst_decklink_sink_stop (decklinksink); break; default: break; } out: return ret; } static GstClock * gst_decklink_sink_provide_clock (GstElement * element) { return NULL; } static gboolean gst_decklink_sink_set_clock (GstElement * element, GstClock * clock) { return GST_ELEMENT_CLASS (parent_class)->set_clock (element, clock); } static GstIndex * gst_decklink_sink_get_index (GstElement * element) { return NULL; } static void gst_decklink_sink_set_index (GstElement * element, GstIndex * index) { } static gboolean gst_decklink_sink_send_event (GstElement * element, GstEvent * event) { return TRUE; } static gboolean gst_decklink_sink_query (GstElement * element, GstQuery * query) { return FALSE; } static GstCaps * gst_decklink_sink_videosink_getcaps (GstPad * pad) { GstDecklinkSink *decklinksink; GstCaps *caps; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "getcaps"); caps = gst_decklink_mode_get_caps (decklinksink->mode); gst_object_unref (decklinksink); return caps; } static gboolean gst_decklink_sink_videosink_setcaps (GstPad * pad, GstCaps * caps) { GstDecklinkSink *decklinksink; gboolean ret; GstVideoFormat format; int width; int height; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "setcaps"); ret = gst_video_format_parse_caps (caps, &format, &width, &height); if (ret) { if (format == GST_VIDEO_FORMAT_v210) { decklinksink->pixel_format = bmdFormat10BitYUV; } else { decklinksink->pixel_format = bmdFormat8BitYUV; } } gst_object_unref (decklinksink); return TRUE; } static gboolean gst_decklink_sink_videosink_acceptcaps (GstPad * pad, GstCaps * caps) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "acceptcaps"); gst_object_unref (decklinksink); return TRUE; } static gboolean gst_decklink_sink_videosink_activate (GstPad * pad) { GstDecklinkSink *decklinksink; gboolean ret; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "activate"); if (gst_pad_check_pull_range (pad)) { GST_DEBUG_OBJECT (pad, "activating pull"); ret = gst_pad_activate_pull (pad, TRUE); } else { GST_DEBUG_OBJECT (pad, "activating push"); ret = gst_pad_activate_push (pad, TRUE); } gst_object_unref (decklinksink); return ret; } static gboolean gst_decklink_sink_videosink_activatepush (GstPad * pad, gboolean active) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "activatepush"); gst_object_unref (decklinksink); return TRUE; } static gboolean gst_decklink_sink_videosink_activatepull (GstPad * pad, gboolean active) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "activatepull"); gst_object_unref (decklinksink); return TRUE; } static GstPadLinkReturn gst_decklink_sink_videosink_link (GstPad * pad, GstPad * peer) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "link"); gst_object_unref (decklinksink); return GST_PAD_LINK_OK; } static GstFlowReturn gst_decklink_sink_videosink_chain (GstPad * pad, GstBuffer * buffer) { GstDecklinkSink *decklinksink; IDeckLinkMutableVideoFrame *frame; void *data; GstFlowReturn ret; const GstDecklinkMode *mode; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "chain"); #if 0 if (!decklinksink->video_enabled) { HRESULT ret; ret = decklinksink->output->EnableVideoOutput (decklinksink->display_mode, bmdVideoOutputFlagDefault); if (ret != S_OK) { GST_WARNING ("failed to enable video output"); //return FALSE; } decklinksink->video_enabled = TRUE; } #endif mode = gst_decklink_get_mode (decklinksink->mode); decklinksink->output->CreateVideoFrame (mode->width, mode->height, mode->width * 2, decklinksink->pixel_format, bmdFrameFlagDefault, &frame); frame->GetBytes (&data); memcpy (data, GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer)); gst_buffer_unref (buffer); g_mutex_lock (decklinksink->mutex); while (decklinksink->queued_frames > 2 && !decklinksink->stop) { g_cond_wait (decklinksink->cond, decklinksink->mutex); } if (!decklinksink->stop) { decklinksink->queued_frames++; } g_mutex_unlock (decklinksink->mutex); if (!decklinksink->stop) { decklinksink->output->ScheduleVideoFrame (frame, decklinksink->num_frames * mode->fps_d, mode->fps_d, mode->fps_n); decklinksink->num_frames++; if (!decklinksink->sched_started) { decklinksink->output->StartScheduledPlayback (0, mode->fps_d, 1.0); decklinksink->sched_started = TRUE; } ret = GST_FLOW_OK; } else { ret = GST_FLOW_FLUSHING; } frame->Release (); gst_object_unref (decklinksink); return ret; } static GstFlowReturn gst_decklink_sink_videosink_chainlist (GstPad * pad, GstBufferList * bufferlist) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "chainlist"); gst_object_unref (decklinksink); return GST_FLOW_OK; } static gboolean gst_decklink_sink_videosink_event (GstPad * pad, GstEvent * event) { gboolean res; GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "event"); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_EOS: decklinksink->video_eos = TRUE; decklinksink->video_seqnum = gst_event_get_seqnum (event); { GstMessage *message; message = gst_message_new_eos (GST_OBJECT_CAST (decklinksink)); gst_message_set_seqnum (message, decklinksink->video_seqnum); gst_element_post_message (GST_ELEMENT_CAST (decklinksink), message); } break; default: res = gst_pad_event_default (pad, event); break; } gst_object_unref (decklinksink); return res; } static gboolean gst_decklink_sink_videosink_query (GstPad * pad, GstQuery * query) { gboolean res; GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "query"); switch (GST_QUERY_TYPE (query)) { default: res = gst_pad_query_default (pad, query); break; } gst_object_unref (decklinksink); return res; } static GstFlowReturn gst_decklink_sink_videosink_bufferalloc (GstPad * pad, guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "bufferalloc"); *buf = gst_buffer_new_and_alloc (size); gst_buffer_set_caps (*buf, caps); gst_object_unref (decklinksink); return GST_FLOW_OK; } static GstIterator * gst_decklink_sink_videosink_iterintlink (GstPad * pad) { GstDecklinkSink *decklinksink; GstIterator *iter; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "iterintlink"); iter = gst_pad_iterate_internal_links_default (pad); gst_object_unref (decklinksink); return iter; } static GstCaps * gst_decklink_sink_audiosink_getcaps (GstPad * pad) { GstDecklinkSink *decklinksink; GstCaps *caps; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "getcaps"); caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad)); gst_object_unref (decklinksink); return caps; } static gboolean gst_decklink_sink_audiosink_setcaps (GstPad * pad, GstCaps * caps) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "setcaps"); gst_object_unref (decklinksink); return TRUE; } static gboolean gst_decklink_sink_audiosink_acceptcaps (GstPad * pad, GstCaps * caps) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "acceptcaps"); gst_object_unref (decklinksink); return TRUE; } static gboolean gst_decklink_sink_audiosink_activate (GstPad * pad) { GstDecklinkSink *decklinksink; gboolean ret; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "activate"); if (gst_pad_check_pull_range (pad)) { GST_DEBUG_OBJECT (pad, "activating pull"); ret = gst_pad_activate_pull (pad, TRUE); } else { GST_DEBUG_OBJECT (pad, "activating push"); ret = gst_pad_activate_push (pad, TRUE); } gst_object_unref (decklinksink); return ret; } static gboolean gst_decklink_sink_audiosink_activatepush (GstPad * pad, gboolean active) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "activatepush"); gst_object_unref (decklinksink); return TRUE; } static gboolean gst_decklink_sink_audiosink_activatepull (GstPad * pad, gboolean active) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "activatepull"); gst_object_unref (decklinksink); return TRUE; } static GstPadLinkReturn gst_decklink_sink_audiosink_link (GstPad * pad, GstPad * peer) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "link"); gst_object_unref (decklinksink); return GST_PAD_LINK_OK; } static GstFlowReturn gst_decklink_sink_audiosink_chain (GstPad * pad, GstBuffer * buffer) { GstDecklinkSink *decklinksink; GstFlowReturn ret; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "chain"); if (decklinksink->stop) { return GST_FLOW_WRONG_STATE; } g_mutex_lock (decklinksink->audio_mutex); while (!decklinksink->stop && gst_adapter_available (decklinksink->audio_adapter) > 1600 * 4 * 2) { g_cond_wait (decklinksink->audio_cond, decklinksink->audio_mutex); } gst_adapter_push (decklinksink->audio_adapter, buffer); g_mutex_unlock (decklinksink->audio_mutex); gst_object_unref (decklinksink); ret = GST_FLOW_OK; return ret; } static GstFlowReturn gst_decklink_sink_audiosink_chainlist (GstPad * pad, GstBufferList * bufferlist) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "chainlist"); gst_object_unref (decklinksink); return GST_FLOW_OK; } static gboolean gst_decklink_sink_audiosink_event (GstPad * pad, GstEvent * event) { gboolean res; GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "event"); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_EOS: decklinksink->audio_eos = TRUE; decklinksink->audio_seqnum = gst_event_get_seqnum (event); break; default: res = gst_pad_event_default (pad, event); break; } gst_object_unref (decklinksink); return res; } static gboolean gst_decklink_sink_audiosink_query (GstPad * pad, GstQuery * query) { gboolean res; GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "query"); switch (GST_QUERY_TYPE (query)) { default: res = gst_pad_query_default (pad, query); break; } gst_object_unref (decklinksink); return res; } static GstFlowReturn gst_decklink_sink_audiosink_bufferalloc (GstPad * pad, guint64 offset, guint size, GstCaps * caps, GstBuffer ** buf) { GstDecklinkSink *decklinksink; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "bufferalloc"); *buf = gst_buffer_new_and_alloc (size); gst_buffer_set_caps (*buf, caps); gst_object_unref (decklinksink); return GST_FLOW_OK; } static GstIterator * gst_decklink_sink_audiosink_iterintlink (GstPad * pad) { GstDecklinkSink *decklinksink; GstIterator *iter; decklinksink = GST_DECKLINK_SINK (gst_pad_get_parent (pad)); GST_DEBUG_OBJECT (decklinksink, "iterintlink"); iter = gst_pad_iterate_internal_links_default (pad); gst_object_unref (decklinksink); return iter; } HRESULT Output::ScheduledFrameCompleted (IDeckLinkVideoFrame * completedFrame, BMDOutputFrameCompletionResult result) { GST_DEBUG ("ScheduledFrameCompleted"); g_mutex_lock (decklinksink->mutex); g_cond_signal (decklinksink->cond); decklinksink->queued_frames--; g_mutex_unlock (decklinksink->mutex); return S_OK; } HRESULT Output::ScheduledPlaybackHasStopped () { GST_DEBUG ("ScheduledPlaybackHasStopped"); return S_OK; } HRESULT Output::RenderAudioSamples (bool preroll) { uint32_t samplesWritten; // guint64 samplesToWrite; if (decklinksink->stop) { GST_DEBUG ("decklinksink->stop set TRUE!"); decklinksink->output->BeginAudioPreroll (); // running = true; } else { int n; const guint8 *data; g_mutex_lock (decklinksink->audio_mutex); n = gst_adapter_available (decklinksink->audio_adapter); if (n > 0) { data = gst_adapter_peek (decklinksink->audio_adapter, n); decklinksink->output->ScheduleAudioSamples ((void *) data, n / 4, 0, 0, &samplesWritten); gst_adapter_flush (decklinksink->audio_adapter, samplesWritten * 4); GST_DEBUG ("wrote %d samples, %d available", samplesWritten, n / 4); g_cond_signal (decklinksink->audio_cond); } else { if (decklinksink->audio_eos) { GstMessage *message; message = gst_message_new_eos (GST_OBJECT_CAST (decklinksink)); gst_message_set_seqnum (message, decklinksink->audio_seqnum); gst_element_post_message (GST_ELEMENT_CAST (decklinksink), message); } } g_mutex_unlock (decklinksink->audio_mutex); } GST_DEBUG ("RenderAudioSamples"); return S_OK; } static const GList * gst_decklink_sink_probe_get_properties (GstPropertyProbe * probe) { GObjectClass *klass = G_OBJECT_GET_CLASS (probe); static GList *list = NULL; static gsize init = 0; if (g_once_init_enter (&init)) { list = g_list_append (NULL, g_object_class_find_property (klass, "device")); g_once_init_leave (&init, 1); } return list; } static gboolean probed = FALSE; static int n_devices; static void gst_decklink_sink_class_probe_devices (GstElementClass * klass) { IDeckLinkIterator *iterator; IDeckLink *decklink; n_devices = 0; iterator = CreateDeckLinkIteratorInstance (); if (iterator) { while (iterator->Next (&decklink) == S_OK) { n_devices++; } } probed = TRUE; } static void gst_decklink_sink_probe_probe_property (GstPropertyProbe * probe, guint prop_id, const GParamSpec * pspec) { GstElementClass *klass = GST_ELEMENT_GET_CLASS (probe); switch (prop_id) { case PROP_DEVICE: gst_decklink_sink_class_probe_devices (klass); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec); break; } } static gboolean gst_decklink_sink_probe_needs_probe (GstPropertyProbe * probe, guint prop_id, const GParamSpec * pspec) { gboolean ret = FALSE; switch (prop_id) { case PROP_DEVICE: ret = !probed; break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec); break; } return ret; } static GValueArray * gst_decklink_sink_class_list_devices (GstElementClass * klass) { GValueArray *array; GValue value = { 0}; GList *item; int i; array = g_value_array_new (n_devices); g_value_init (&value, G_TYPE_INT); for (i = 0; i < n_devices; i++) { g_value_set_int (&value, i); g_value_array_append (array, &value); item = item->next; } g_value_unset (&value); return array; } static GValueArray * gst_decklink_sink_probe_get_values (GstPropertyProbe * probe, guint prop_id, const GParamSpec * pspec) { GstElementClass *klass = GST_ELEMENT_GET_CLASS (probe); GValueArray *array = NULL; switch (prop_id) { case PROP_DEVICE: array = gst_decklink_sink_class_list_devices (klass); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec); break; } return array; } static void gst_decklink_sink_property_probe_interface_init (GstPropertyProbeInterface * iface) { iface->get_properties = gst_decklink_sink_probe_get_properties; iface->probe_property = gst_decklink_sink_probe_probe_property; iface->needs_probe = gst_decklink_sink_probe_needs_probe; iface->get_values = gst_decklink_sink_probe_get_values; }