From 1fa171d3960dea447283d6eda05e2ed96e602049 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@collabora.co.uk>
Date: Fri, 9 Apr 2010 16:06:05 +0200
Subject: [PATCH] audiopayload: add property to control packet duration

Add a property to specify that the amount of data in a packet should be a
multiple of ptime-multiple.

See #613248
---
 gst-libs/gst/rtp/gstbasertppayload.c | 21 +++++++++++++++++++++
 gst-libs/gst/rtp/gstbasertppayload.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/gst-libs/gst/rtp/gstbasertppayload.c b/gst-libs/gst/rtp/gstbasertppayload.c
index c7746d5cd4..e1cc721b2d 100644
--- a/gst-libs/gst/rtp/gstbasertppayload.c
+++ b/gst-libs/gst/rtp/gstbasertppayload.c
@@ -72,6 +72,7 @@ enum
 #define DEFAULT_MAX_PTIME               -1
 #define DEFAULT_MIN_PTIME               0
 #define DEFAULT_PERFECT_RTPTIME         TRUE
+#define DEFAULT_PTIME_MULTIPLE          0
 
 enum
 {
@@ -86,6 +87,7 @@ enum
   PROP_TIMESTAMP,
   PROP_SEQNUM,
   PROP_PERFECT_RTPTIME,
+  PROP_PTIME_MULTIPLE,
   PROP_LAST
 };
 
@@ -225,6 +227,18 @@ gst_basertppayload_class_init (GstBaseRTPPayloadClass * klass)
       g_param_spec_boolean ("perfect-rtptime", "Perfect RTP Time",
           "Generate perfect RTP timestamps when possible",
           DEFAULT_PERFECT_RTPTIME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+  /**
+   * GstBaseRTPAudioPayload:ptime-multiple:
+   *
+   * Force buffers to be multiples of this duration in ns (0 disables)
+   *
+   * Since: 0.10.29
+   **/
+  g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PTIME_MULTIPLE,
+      g_param_spec_int64 ("ptime-multiple", "Packet time multiple",
+          "Force buffers to be multiples of this duration in ns (0 disables)",
+          0, G_MAXINT64, DEFAULT_PTIME_MULTIPLE,
+          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 
   gstelement_class->change_state = gst_basertppayload_change_state;
 
@@ -279,6 +293,7 @@ gst_basertppayload_init (GstBaseRTPPayload * basertppayload, gpointer g_class)
   basertppayload->max_ptime = DEFAULT_MAX_PTIME;
   basertppayload->min_ptime = DEFAULT_MIN_PTIME;
   basertppayload->priv->perfect_rtptime = DEFAULT_PERFECT_RTPTIME;
+  basertppayload->abidata.ABI.ptime_multiple = DEFAULT_PTIME_MULTIPLE;
 
   basertppayload->media = NULL;
   basertppayload->encoding_name = NULL;
@@ -906,6 +921,9 @@ gst_basertppayload_set_property (GObject * object, guint prop_id,
     case PROP_PERFECT_RTPTIME:
       priv->perfect_rtptime = g_value_get_boolean (value);
       break;
+    case PROP_PTIME_MULTIPLE:
+      basertppayload->abidata.ABI.ptime_multiple = g_value_get_int64 (value);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -962,6 +980,9 @@ gst_basertppayload_get_property (GObject * object, guint prop_id,
     case PROP_PERFECT_RTPTIME:
       g_value_set_boolean (value, priv->perfect_rtptime);
       break;
+    case PROP_PTIME_MULTIPLE:
+      g_value_set_int64 (value, basertppayload->abidata.ABI.ptime_multiple);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
diff --git a/gst-libs/gst/rtp/gstbasertppayload.h b/gst-libs/gst/rtp/gstbasertppayload.h
index afdbffc59f..9707be06e1 100644
--- a/gst-libs/gst/rtp/gstbasertppayload.h
+++ b/gst-libs/gst/rtp/gstbasertppayload.h
@@ -114,6 +114,7 @@ struct _GstBaseRTPPayload
   union  {
     struct {
       guint64 ptime; /* in ns */
+      guint64 ptime_multiple; /* in ns */
     } ABI;
     gpointer _gst_reserved[GST_PADDING - (sizeof(guint64)/sizeof(gpointer)) - 1];
   } abidata;