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uisourcebin: update forwarded properties on change

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Allows changing queueing properties at runtime

https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/60
This commit is contained in:
Matthew Waters 2018-07-30 14:56:40 +10:00 committed by Edward Hervey
parent 784e621b54
commit 81e00791bf
1 changed files with 45 additions and 34 deletions
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79
gst/playback/gsturisourcebin.c
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@ -209,6 +209,12 @@ enum
#define DEFAULT_LOW_WATERMARK 0.01 #define DEFAULT_LOW_WATERMARK 0.01
#define DEFAULT_HIGH_WATERMARK 0.99 #define DEFAULT_HIGH_WATERMARK 0.99
#define ACTUAL_DEFAULT_BUFFER_SIZE 10 * 1024 * 1024 /* The value used for byte limits when buffer-size == -1 */
#define ACTUAL_DEFAULT_BUFFER_DURATION 5 * GST_SECOND /* The value used for time limits when buffer-duration == -1 */
#define GET_BUFFER_SIZE(u) ((u)->buffer_size == -1 ? ACTUAL_DEFAULT_BUFFER_SIZE : (u)->buffer_size)
#define GET_BUFFER_DURATION(u) ((u)->buffer_duration == -1 ? ACTUAL_DEFAULT_BUFFER_DURATION : (u)->buffer_duration)
#define DEFAULT_CAPS (gst_static_caps_get (&default_raw_caps)) #define DEFAULT_CAPS (gst_static_caps_get (&default_raw_caps))
enum enum
{ {
@ -272,6 +278,8 @@ static void free_output_slot_async (GstURISourceBin * urisrc,
static GstPad *create_output_pad (GstURISourceBin * urisrc, GstPad * pad); static GstPad *create_output_pad (GstURISourceBin * urisrc, GstPad * pad);
static void remove_buffering_msgs (GstURISourceBin * bin, GstObject * src); static void remove_buffering_msgs (GstURISourceBin * bin, GstObject * src);
static void update_queue_values (GstURISourceBin * urisrc);
static void static void
gst_uri_source_bin_class_init (GstURISourceBinClass * klass) gst_uri_source_bin_class_init (GstURISourceBinClass * klass)
{ {
@ -496,9 +504,11 @@ gst_uri_source_bin_set_property (GObject * object, guint prop_id,
break; break;
case PROP_BUFFER_SIZE: case PROP_BUFFER_SIZE:
urisrc->buffer_size = g_value_get_int (value); urisrc->buffer_size = g_value_get_int (value);
update_queue_values (urisrc);
break; break;
case PROP_BUFFER_DURATION: case PROP_BUFFER_DURATION:
urisrc->buffer_duration = g_value_get_int64 (value); urisrc->buffer_duration = g_value_get_int64 (value);
update_queue_values (urisrc);
break; break;
case PROP_DOWNLOAD: case PROP_DOWNLOAD:
urisrc->download = g_value_get_boolean (value); urisrc->download = g_value_get_boolean (value);
@ -510,10 +520,12 @@ gst_uri_source_bin_set_property (GObject * object, guint prop_id,
urisrc->ring_buffer_max_size = g_value_get_uint64 (value); urisrc->ring_buffer_max_size = g_value_get_uint64 (value);
break; break;
case PROP_LOW_WATERMARK: case PROP_LOW_WATERMARK:
dec->low_watermark = g_value_get_double (value); urisrc->low_watermark = g_value_get_double (value);
update_queue_values (urisrc);
break; break;
case PROP_HIGH_WATERMARK: case PROP_HIGH_WATERMARK:
dec->high_watermark = g_value_get_double (value); urisrc->high_watermark = g_value_get_double (value);
update_queue_values (urisrc);
break; break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -563,10 +575,10 @@ gst_uri_source_bin_get_property (GObject * object, guint prop_id,
g_value_set_uint64 (value, urisrc->ring_buffer_max_size); g_value_set_uint64 (value, urisrc->ring_buffer_max_size);
break; break;
case PROP_LOW_WATERMARK: case PROP_LOW_WATERMARK:
g_value_set_double (value, dec->low_watermark); g_value_set_double (value, urisrc->low_watermark);
break; break;
case PROP_HIGH_WATERMARK: case PROP_HIGH_WATERMARK:
g_value_set_double (value, dec->high_watermark); g_value_set_double (value, urisrc->high_watermark);
break; break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -574,11 +586,6 @@ gst_uri_source_bin_get_property (GObject * object, guint prop_id,
} }
} }
#define DEFAULT_QUEUE_SIZE (3 * GST_SECOND)
#define DEFAULT_QUEUE_MIN_THRESHOLD ((DEFAULT_QUEUE_SIZE * 30) / 100)
#define DEFAULT_QUEUE_THRESHOLD ((DEFAULT_QUEUE_SIZE * 95) / 100)
static gboolean static gboolean
copy_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data) copy_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
{ {
@ -886,19 +893,19 @@ pre_queue_event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
} }
static void static void
update_byte_limits (GstElement * elem, gpointer user_data) update_queue_values (GstURISourceBin * urisrc)
{ {
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (elem); gint64 duration;
guint buffer_size;
gdouble low_watermark, high_watermark;
guint64 cumulative_bitrate = 0; guint64 cumulative_bitrate = 0;
GSList *cur; GSList *cur;
GST_URI_SOURCE_BIN_LOCK (urisrc); GST_URI_SOURCE_BIN_LOCK (urisrc);
if (urisrc->buffer_size == -1) { duration = GET_BUFFER_DURATION (urisrc);
GST_TRACE_OBJECT (urisrc, "Buffer size not set, not recalculating queue " buffer_size = GET_BUFFER_SIZE (urisrc);
"limits"); low_watermark = urisrc->low_watermark;
GST_URI_SOURCE_BIN_UNLOCK (urisrc); high_watermark = urisrc->high_watermark;
return;
}
for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) { for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) {
OutputSlotInfo *slot = (OutputSlotInfo *) (cur->data); OutputSlotInfo *slot = (OutputSlotInfo *) (cur->data);
@ -920,8 +927,8 @@ update_byte_limits (GstElement * elem, gpointer user_data)
} }
GST_DEBUG_OBJECT (urisrc, "recalculating queue limits with cumulative " GST_DEBUG_OBJECT (urisrc, "recalculating queue limits with cumulative "
"bitrate %" G_GUINT64_FORMAT " and buffer size %u", cumulative_bitrate, "bitrate %" G_GUINT64_FORMAT ", buffer size %u, buffer duration %"
urisrc->buffer_size); G_GINT64_FORMAT, cumulative_bitrate, buffer_size, duration);
for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) { for (cur = urisrc->out_slots; cur != NULL; cur = g_slist_next (cur)) {
OutputSlotInfo *slot = (OutputSlotInfo *) (cur->data); OutputSlotInfo *slot = (OutputSlotInfo *) (cur->data);
@ -935,18 +942,23 @@ update_byte_limits (GstElement * elem, gpointer user_data)
} }
byte_limit = byte_limit =
gst_util_uint64_scale (urisrc->buffer_size, bitrate, gst_util_uint64_scale (buffer_size, bitrate, cumulative_bitrate);
cumulative_bitrate);
} else { } else {
byte_limit = urisrc->buffer_size; /* if not all queue's have valid bitrates, use the buffer-size as the
* limit */
byte_limit = buffer_size;
} }
GST_DEBUG_OBJECT (urisrc, GST_DEBUG_OBJECT (urisrc,
"calculated new byte limit for queue2 %" GST_PTR_FORMAT ", %u", "calculated new limits for queue-like element %" GST_PTR_FORMAT
slot->queue, byte_limit); ", bytes:%u, time:%" G_GUINT64_FORMAT
g_object_set (G_OBJECT (slot->queue), "max-size-bytes", byte_limit, NULL); ", low-watermark:%f, high-watermark:%f",
slot->queue, byte_limit, (guint64) duration, low_watermark,
high_watermark);
g_object_set (G_OBJECT (slot->queue), "max-size-bytes", byte_limit,
"max-size-time", (guint64) duration, "low-watermark", low_watermark,
"high-watermark", high_watermark, NULL);
} }
GST_URI_SOURCE_BIN_UNLOCK (urisrc); GST_URI_SOURCE_BIN_UNLOCK (urisrc);
} }
@ -956,7 +968,8 @@ on_queue_bitrate_changed (GstElement * queue, GParamSpec * pspec,
{ {
GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (user_data); GstURISourceBin *urisrc = GST_URI_SOURCE_BIN (user_data);
gst_element_call_async (GST_ELEMENT (urisrc), update_byte_limits, NULL, NULL); gst_element_call_async (GST_ELEMENT (urisrc),
(GstElementCallAsyncFunc) update_queue_values, NULL, NULL);
} }
/* Called with lock held */ /* Called with lock held */
@ -1052,13 +1065,11 @@ get_output_slot (GstURISourceBin * urisrc, gboolean do_download,
g_object_set (queue, "low-percent", 1, "high-percent", 60, NULL); g_object_set (queue, "low-percent", 1, "high-percent", 60, NULL);
} }
/* If buffer size or duration are set, set them on the element */ /* set the necessary limits on the queue-like elements */
if (urisrc->buffer_size != -1) g_object_set (queue, "max-size-bytes", GET_BUFFER_SIZE (urisrc),
g_object_set (queue, "max-size-bytes", urisrc->buffer_size, NULL); "max-size-time", (guint64) GET_BUFFER_DURATION (urisrc),
if (urisrc->buffer_duration != -1) "low-watermark", urisrc->low_watermark, "high-watermark",
g_object_set (queue, "max-size-time", urisrc->buffer_duration, NULL); urisrc->high_watermark, NULL);
g_object_set (queue, "low-watermark", urisrc->low_watermark,
"high-watermark", urisrc->high_watermark, NULL);
#if 0 #if 0
/* Disabled because this makes initial startup slower for radio streams */ /* Disabled because this makes initial startup slower for radio streams */
else { else {