Changeset 4043 for pjproject/trunk/pjmedia/include/pjmedia/vid_stream.h

Timestamp:

Apr 12, 2012 1:41:50 PM (12 years ago)

Author:

nanang

Message:

Re #1476: Initial version of send rate control in video stream, added simple blocking method (block application thread to make send delay when delay is needed).

File:

• pjproject/trunk/pjmedia/include/pjmedia/vid_stream.h (modified) (3 diffs)

pjproject/trunk/pjmedia/include/pjmedia/vid_stream.h

@@ -72 +72 @@
  * #pjmedia_vid stream_info from local and remote SDP session descriptors.
  */
+
+
+/**
+ * Enumeration of video stream sending rate control.
+ */
+typedef enum pjmedia_vid_stream_rc_method
+{
+    /**
+     * No sending rate control. All outgoing RTP packets will be transmitted
+     * immediately right after encoding process is done.
+     */
+    PJMEDIA_VID_STREAM_RC_NONE              = 0,
+
+    /**
+     * Simple blocking. Each outgoing RTP packet transmission may be delayed
+     * to avoid peak bandwidth that is much higher than specified. The thread
+     * invoking the video stream put_frame(), e.g: video capture device thread,
+     * will be blocked whenever transmission delay takes place.
+     */
+    PJMEDIA_VID_STREAM_RC_SIMPLE_BLOCKING   = 1
+
+} pjmedia_vid_stream_rc_method;
+
+
+/**
+ * Structure of configuration settings for video stream sending rate control.
+ */
+typedef struct pjmedia_vid_stream_rc_config
+{
+    /**
+     * Rate control method.
+     *
+     * Default: PJMEDIA_VID_STREAM_RC_SIMPLE_BLOCKING.
+     */
+    pjmedia_vid_stream_rc_method    method;
+
+    /**
+     * Upstream/outgoing bandwidth. If this is set to zero, the video stream
+     * will use codec maximum bitrate setting.
+     *
+     * Default: 0 (follow codec maximum bitrate).
+     */
+    unsigned                        bandwidth;
+
+} pjmedia_vid_stream_rc_config;
 
 
@@ -118 +163 @@
                                     /**< Disable automatic sending of RTCP
                                          SDES and BYE.                      */
+
+    pjmedia_vid_stream_rc_config rc_cfg;
+                                    /**< Stream send rate control settings. */
 } pjmedia_vid_stream_info;
 
@@ -144 +192 @@
                                  const pjmedia_sdp_session *remote,
                                  unsigned stream_idx);
+
+
+/**
+ * Initialize the video stream rate control with default settings.
+ *
+ * @param cfg           Video stream rate control structure to be initialized.
+ */
+PJ_DECL(void)
+pjmedia_vid_stream_rc_config_default(pjmedia_vid_stream_rc_config *cfg);