diff options
Diffstat (limited to 'gst')
| -rw-r--r-- | gst/dtmf/gstdtmfsrc.c | 297 | ||||
| -rw-r--r-- | gst/dtmf/gstdtmfsrc.h | 7 |
2 files changed, 93 insertions, 211 deletions
diff --git a/gst/dtmf/gstdtmfsrc.c b/gst/dtmf/gstdtmfsrc.c index 94987de8..f6425587 100644 --- a/gst/dtmf/gstdtmfsrc.c +++ b/gst/dtmf/gstdtmfsrc.c @@ -231,53 +231,30 @@ GST_STATIC_PAD_TEMPLATE ("src", "channels = (int) 1") ); -static GstElementClass *parent_class = NULL; +GST_BOILERPLATE (GstDTMFSrc, gst_dtmf_src, GstBaseSrc, GST_TYPE_BASE_SRC); -static void gst_dtmf_src_base_init (gpointer g_class); -static void gst_dtmf_src_class_init (GstDTMFSrcClass * klass); -static void gst_dtmf_src_init (GstDTMFSrc * dtmfsrc, gpointer g_class); static void gst_dtmf_src_finalize (GObject * object); -GType -gst_dtmf_src_get_type (void) -{ - static GType base_src_type = 0; - - if (G_UNLIKELY (base_src_type == 0)) { - static const GTypeInfo base_src_info = { - sizeof (GstDTMFSrcClass), - (GBaseInitFunc) gst_dtmf_src_base_init, - NULL, - (GClassInitFunc) gst_dtmf_src_class_init, - NULL, - NULL, - sizeof (GstDTMFSrc), - 0, - (GInstanceInitFunc) gst_dtmf_src_init, - }; - - base_src_type = g_type_register_static (GST_TYPE_ELEMENT, - "GstDTMFSrc", &base_src_info, 0); - } - return base_src_type; -} - static void gst_dtmf_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_dtmf_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); -static gboolean gst_dtmf_src_handle_event (GstPad * pad, GstEvent * event); +static gboolean gst_dtmf_src_handle_event (GstBaseSrc *src, GstEvent * event); static GstStateChangeReturn gst_dtmf_src_change_state (GstElement * element, GstStateChange transition); static void gst_dtmf_src_generate_tone(GstDTMFSrcEvent *event, DTMF_KEY key, float duration, GstBuffer * buffer); -static void gst_dtmf_src_push_next_tone_packet (GstDTMFSrc *dtmfsrc); -static void gst_dtmf_src_start (GstDTMFSrc *dtmfsrc); -static void gst_dtmf_src_stop (GstDTMFSrc *dtmfsrc); +static GstFlowReturn gst_dtmf_src_create (GstBaseSrc * basesrc, + guint64 offset, guint length, GstBuffer ** buffer); static void gst_dtmf_src_add_start_event (GstDTMFSrc *dtmfsrc, gint event_number, gint event_volume); static void gst_dtmf_src_add_stop_event (GstDTMFSrc *dtmfsrc); +static void gst_dtmf_src_get_times (GstBaseSrc * basesrc, + GstBuffer * buffer, GstClockTime * start, GstClockTime * end); + + + static void gst_dtmf_src_base_init (gpointer g_class) { @@ -296,12 +273,13 @@ static void gst_dtmf_src_class_init (GstDTMFSrcClass * klass) { GObjectClass *gobject_class; + GstBaseSrcClass *gstbasesrc_class; GstElementClass *gstelement_class; gobject_class = G_OBJECT_CLASS (klass); + gstbasesrc_class = GST_BASE_SRC_CLASS (klass); gstelement_class = GST_ELEMENT_CLASS (klass); - parent_class = g_type_class_peek_parent (klass); gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_dtmf_src_finalize); gobject_class->set_property = @@ -316,17 +294,22 @@ gst_dtmf_src_class_init (GstDTMFSrcClass * klass) gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_dtmf_src_change_state); + + gstbasesrc_class->event = + GST_DEBUG_FUNCPTR (gst_dtmf_src_handle_event); + gstbasesrc_class->get_times = + GST_DEBUG_FUNCPTR (gst_dtmf_src_get_times); + gstbasesrc_class->create = + GST_DEBUG_FUNCPTR (gst_dtmf_src_create); } + static void -gst_dtmf_src_init (GstDTMFSrc * dtmfsrc, gpointer g_class) +gst_dtmf_src_init (GstDTMFSrc * dtmfsrc, GstDTMFSrcClass *g_class) { - dtmfsrc->srcpad = - gst_pad_new_from_static_template (&gst_dtmf_src_template, "src"); - GST_DEBUG_OBJECT (dtmfsrc, "adding src pad"); - gst_element_add_pad (GST_ELEMENT (dtmfsrc), dtmfsrc->srcpad); - - gst_pad_set_event_function (dtmfsrc->srcpad, gst_dtmf_src_handle_event); + /* we operate in time */ + gst_base_src_set_format (GST_BASE_SRC (dtmfsrc), GST_FORMAT_TIME); + gst_base_src_set_live (GST_BASE_SRC (dtmfsrc), TRUE); dtmfsrc->interval = DEFAULT_PACKET_INTERVAL; @@ -334,7 +317,6 @@ gst_dtmf_src_init (GstDTMFSrc * dtmfsrc, gpointer g_class) dtmfsrc->last_event = NULL; dtmfsrc->clock_id = NULL; - dtmfsrc->task_paused = TRUE; GST_DEBUG_OBJECT (dtmfsrc, "init done"); } @@ -346,9 +328,6 @@ gst_dtmf_src_finalize (GObject * object) dtmfsrc = GST_DTMF_SRC (object); - - gst_dtmf_src_stop (dtmfsrc); - if (dtmfsrc->event_queue) { g_async_queue_unref (dtmfsrc->event_queue); dtmfsrc->event_queue = NULL; @@ -424,36 +403,18 @@ ret: } static gboolean -gst_dtmf_src_handle_event (GstPad * pad, GstEvent * event) +gst_dtmf_src_handle_event (GstBaseSrc * src, GstEvent * event) { GstDTMFSrc *dtmfsrc; gboolean result = FALSE; - GstElement *parent = gst_pad_get_parent_element (pad); - dtmfsrc = GST_DTMF_SRC (parent); + + dtmfsrc = GST_DTMF_SRC (src); GST_DEBUG_OBJECT (dtmfsrc, "Received an event on the src pad"); - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_CUSTOM_UPSTREAM: - { - result = gst_dtmf_src_handle_custom_upstream (dtmfsrc, event); - break; - } - /* Ideally this element should not be flushed but let's handle the event - * just in case it is */ - case GST_EVENT_FLUSH_START: - gst_dtmf_src_stop (dtmfsrc); - result = TRUE; - break; - case GST_EVENT_FLUSH_STOP: - gst_segment_init (&dtmfsrc->segment, GST_FORMAT_TIME); - break; - default: - result = gst_pad_event_default (pad, event); - break; + if (GST_EVENT_TYPE (event) == GST_EVENT_CUSTOM_UPSTREAM) { + result = gst_dtmf_src_handle_custom_upstream (dtmfsrc, event); } - gst_object_unref (parent); - gst_event_unref (event); return result; } @@ -496,6 +457,7 @@ gst_dtmf_src_get_property (GObject * object, guint prop_id, GValue * value, static void gst_dtmf_src_set_stream_lock (GstDTMFSrc *dtmfsrc, gboolean lock) { + GstPad *srcpad = GST_BASE_SRC_PAD (dtmfsrc); GstEvent *event; GstStructure *structure; @@ -503,7 +465,7 @@ gst_dtmf_src_set_stream_lock (GstDTMFSrc *dtmfsrc, gboolean lock) "lock", G_TYPE_BOOLEAN, lock, NULL); event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM_OOB, structure); - if (!gst_pad_push_event (dtmfsrc->srcpad, event)) { + if (!gst_pad_push_event (srcpad, event)) { GST_WARNING_OBJECT (dtmfsrc, "stream-lock event not handled"); } } @@ -512,10 +474,13 @@ static void gst_dtmf_prepare_timestamps (GstDTMFSrc *dtmfsrc) { GstClock *clock; + GstClockTime base_time; + + base_time = GST_ELEMENT_CAST (dtmfsrc)->base_time; clock = gst_element_get_clock (GST_ELEMENT (dtmfsrc)); if (clock != NULL) { - dtmfsrc->timestamp = gst_clock_get_time (clock); + dtmfsrc->timestamp = gst_clock_get_time (clock) - base_time; gst_object_unref (clock); } else { gchar *dtmf_name = gst_element_get_name (dtmfsrc); @@ -526,65 +491,6 @@ gst_dtmf_prepare_timestamps (GstDTMFSrc *dtmfsrc) } static void -gst_dtmf_src_start (GstDTMFSrc *dtmfsrc) -{ - const GstCaps * caps = gst_pad_get_pad_template_caps (dtmfsrc->srcpad); - - if (!gst_pad_set_caps (dtmfsrc->srcpad, (GstCaps *)caps)) - GST_ERROR_OBJECT (dtmfsrc, - "Failed to set caps %" GST_PTR_FORMAT " on src pad", caps); - else - GST_DEBUG_OBJECT (dtmfsrc, - "caps %" GST_PTR_FORMAT " set on src pad", caps); - - dtmfsrc->task_paused = FALSE; - if (!gst_pad_start_task (dtmfsrc->srcpad, - (GstTaskFunction) gst_dtmf_src_push_next_tone_packet, dtmfsrc)) { - GST_ERROR_OBJECT (dtmfsrc, "Failed to start task on src pad"); - } -} - -static void -gst_dtmf_src_stop (GstDTMFSrc *dtmfsrc) -{ - GstDTMFSrcEvent *event = NULL; - - dtmfsrc->task_paused = TRUE; - GST_OBJECT_LOCK (dtmfsrc); - if (dtmfsrc->clock_id != NULL) { - gst_clock_id_unschedule(dtmfsrc->clock_id); - } - GST_OBJECT_UNLOCK (dtmfsrc); - - event = g_malloc (sizeof(GstDTMFSrcEvent)); - event->event_type = DTMF_EVENT_TYPE_PAUSE_TASK; - g_async_queue_push (dtmfsrc->event_queue, event); - - event = NULL; - - if (!gst_pad_pause_task (dtmfsrc->srcpad)) { - GST_ERROR_OBJECT (dtmfsrc, "Failed to pause task on src pad"); - return; - } - - if (dtmfsrc->last_event) { - /* Don't forget to release the stream lock */ - gst_dtmf_src_set_stream_lock (dtmfsrc, FALSE); - g_free (dtmfsrc->last_event); - dtmfsrc->last_event = NULL; - } - - /* Flushing the event queue */ - event = g_async_queue_try_pop (dtmfsrc->event_queue); - - while (event != NULL) { - g_free (event); - event = g_async_queue_try_pop (dtmfsrc->event_queue); - } - -} - -static void gst_dtmf_src_add_start_event (GstDTMFSrc *dtmfsrc, gint event_number, gint event_volume) { @@ -671,51 +577,25 @@ gst_dtmf_src_generate_tone(GstDTMFSrcEvent *event, DTMF_KEY key, float duration, } static void -gst_dtmf_src_wait_for_buffer_ts (GstDTMFSrc *dtmfsrc, GstBuffer * buf) +gst_dtmf_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer, + GstClockTime * start, GstClockTime * end) { - GstClock *clock; - - clock = gst_element_get_clock (GST_ELEMENT (dtmfsrc)); - if (clock != NULL) { - GstClockReturn clock_ret; - GstClockID clock_id; - - clock_id = gst_clock_new_single_shot_id (clock, GST_BUFFER_TIMESTAMP (buf)); - gst_object_unref (clock); + /* for live sources, sync on the timestamp of the buffer */ + if (gst_base_src_is_live (basesrc)) { + GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer); - GST_OBJECT_LOCK (dtmfsrc); - dtmfsrc->clock_id = clock_id; - GST_OBJECT_UNLOCK (dtmfsrc); + if (GST_CLOCK_TIME_IS_VALID (timestamp)) { + /* get duration to calculate end time */ + GstClockTime duration = GST_BUFFER_DURATION (buffer); - if (dtmfsrc->task_paused) { - clock_ret = GST_CLOCK_UNSCHEDULED; - } else { - clock_ret = gst_clock_id_wait (dtmfsrc->clock_id, NULL); - } - - GST_OBJECT_LOCK (dtmfsrc); - dtmfsrc->clock_id = NULL; - gst_clock_id_unref (clock_id); - GST_OBJECT_UNLOCK (dtmfsrc); - - if (clock_ret == GST_CLOCK_UNSCHEDULED) { - GST_DEBUG_OBJECT (dtmfsrc, "Clock wait unscheduled"); - } else { - if (clock_ret != GST_CLOCK_OK && clock_ret != GST_CLOCK_EARLY) { - gchar *clock_name = NULL; - - clock = gst_element_get_clock (GST_ELEMENT (dtmfsrc)); - clock_name = gst_element_get_name (clock); - gst_object_unref (clock); - - GST_ERROR_OBJECT (dtmfsrc, "Failed to wait on clock %s", clock_name); - g_free (clock_name); + *start = timestamp; + if (GST_CLOCK_TIME_IS_VALID (duration)) { + *end = *start + duration; } } } else { - gchar *dtmf_name = gst_element_get_name (dtmfsrc); - GST_ERROR_OBJECT (dtmfsrc, "No clock set for element %s", dtmf_name); - g_free (dtmf_name); + *start = -1; + *end = -1; } } @@ -726,6 +606,7 @@ gst_dtmf_src_create_next_tone_packet (GstDTMFSrc *dtmfsrc, { GstBuffer *buf = NULL; gboolean send_silence = FALSE; + GstPad *srcpad = GST_BASE_SRC_PAD (dtmfsrc); GST_DEBUG_OBJECT (dtmfsrc, "Creating buffer for tone %s", DTMF_KEYS[event->event_number].event_name); @@ -753,24 +634,26 @@ gst_dtmf_src_create_next_tone_packet (GstDTMFSrc *dtmfsrc, GST_BUFFER_TIMESTAMP (buf) = dtmfsrc->timestamp; dtmfsrc->timestamp += GST_BUFFER_DURATION (buf); - /* FIXME: Should we sync to clock ourselves or leave it to sink */ - gst_dtmf_src_wait_for_buffer_ts (dtmfsrc, buf); - /* Set caps on the buffer before pushing it */ - gst_buffer_set_caps (buf, GST_PAD_CAPS (dtmfsrc->srcpad)); + gst_buffer_set_caps (buf, GST_PAD_CAPS (srcpad)); return buf; } -static void -gst_dtmf_src_push_next_tone_packet (GstDTMFSrc *dtmfsrc) +static GstFlowReturn +gst_dtmf_src_create (GstBaseSrc * basesrc, guint64 offset, + guint length, GstBuffer ** buffer) { GstBuffer *buf = NULL; GstFlowReturn ret; GstDTMFSrcEvent *event; + GstDTMFSrc * dtmfsrc; + + dtmfsrc = GST_DTMF_SRC (basesrc); g_async_queue_ref (dtmfsrc->event_queue); + start: if (dtmfsrc->last_event == NULL) { event = g_async_queue_pop (dtmfsrc->event_queue); @@ -788,11 +671,10 @@ gst_dtmf_src_push_next_tone_packet (GstDTMFSrc *dtmfsrc) } else if (event->event_type == DTMF_EVENT_TYPE_PAUSE_TASK) { /* * We're pushing it back because it has to stay in there until - * the task is really paused (and the queue will then be flushed + * the task is really paused (and the queue will then be flushed) */ g_async_queue_push (dtmfsrc->event_queue, event); g_async_queue_unref (dtmfsrc->event_queue); - return; } } else if (dtmfsrc->last_event->packet_count * dtmfsrc->interval >= MIN_DUTY_CYCLE) { @@ -806,6 +688,7 @@ gst_dtmf_src_push_next_tone_packet (GstDTMFSrc *dtmfsrc) gst_dtmf_src_set_stream_lock (dtmfsrc, FALSE); g_free (dtmfsrc->last_event); dtmfsrc->last_event = NULL; + goto start; } } } @@ -814,19 +697,16 @@ gst_dtmf_src_push_next_tone_packet (GstDTMFSrc *dtmfsrc) if (dtmfsrc->last_event) { buf = gst_dtmf_src_create_next_tone_packet (dtmfsrc, dtmfsrc->last_event); - gst_buffer_ref(buf); - - GST_DEBUG_OBJECT (dtmfsrc, - "pushing buffer on src pad of size %d", GST_BUFFER_SIZE (buf)); - ret = gst_pad_push (dtmfsrc->srcpad, buf); - if (ret != GST_FLOW_OK) { - GST_ERROR_OBJECT (dtmfsrc, "Failed to push buffer on src pad"); - } - - gst_buffer_unref(buf); - GST_DEBUG_OBJECT (dtmfsrc, "pushed DTMF tone on src pad"); + GST_DEBUG_OBJECT (dtmfsrc, "Created buffer of size %d", GST_BUFFER_SIZE (buf)); + *buffer = buf; + ret = GST_FLOW_OK; + } else { + *buffer = NULL; + ret = GST_FLOW_WRONG_STATE; } + return ret; + } static GstStateChangeReturn @@ -838,23 +718,6 @@ gst_dtmf_src_change_state (GstElement * element, GstStateChange transition) dtmfsrc = GST_DTMF_SRC (element); - switch (transition) { - case GST_STATE_CHANGE_READY_TO_PAUSED: - gst_segment_init (&dtmfsrc->segment, GST_FORMAT_TIME); - gst_pad_push_event (dtmfsrc->srcpad, gst_event_new_new_segment (FALSE, - dtmfsrc->segment.rate, dtmfsrc->segment.format, - dtmfsrc->segment.start, dtmfsrc->segment.stop, - dtmfsrc->segment.time)); - /* Indicate that we don't do PRE_ROLL */ - no_preroll = TRUE; - break; - case GST_STATE_CHANGE_PAUSED_TO_PLAYING: - gst_dtmf_src_start (dtmfsrc); - break; - default: - break; - } - if ((result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition)) == GST_STATE_CHANGE_FAILURE) @@ -862,10 +725,30 @@ gst_dtmf_src_change_state (GstElement * element, GstStateChange transition) switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: - /* Indicate that we don't do PRE_ROLL */ - gst_dtmf_src_stop (dtmfsrc); - no_preroll = TRUE; - break; + { + GstDTMFSrcEvent *event = NULL; + + /* TODO lock the element */ + + if (dtmfsrc->last_event) { + /* Don't forget to release the stream lock */ + gst_dtmf_src_set_stream_lock (dtmfsrc, FALSE); + g_free (dtmfsrc->last_event); + dtmfsrc->last_event = NULL; + } + + /* Flushing the event queue */ + event = g_async_queue_try_pop (dtmfsrc->event_queue); + + while (event != NULL) { + g_free (event); + event = g_async_queue_try_pop (dtmfsrc->event_queue); + } + + /* Indicate that we don't do PRE_ROLL */ + no_preroll = TRUE; + break; + } default: break; } diff --git a/gst/dtmf/gstdtmfsrc.h b/gst/dtmf/gstdtmfsrc.h index 27e91a00..1ca44643 100644 --- a/gst/dtmf/gstdtmfsrc.h +++ b/gst/dtmf/gstdtmfsrc.h @@ -29,6 +29,7 @@ #include <gst/gst.h> #include <gst/gstbuffer.h> +#include <gst/base/gstbasesrc.h> G_BEGIN_DECLS @@ -69,9 +70,7 @@ struct _GstDTMFSrcEvent { typedef struct _GstDTMFSrcEvent GstDTMFSrcEvent; struct _GstDTMFSrc { - GstElement element; - GstPad *srcpad; - GstSegment segment; + GstBaseSrc parent; GAsyncQueue* event_queue; GstDTMFSrcEvent* last_event; GstClockID clock_id; @@ -83,7 +82,7 @@ struct _GstDTMFSrc { struct _GstDTMFSrcClass { - GstElementClass parent_class; + GstBaseSrcClass parent_class; }; GType gst_dtmf_src_get_type (void); |