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