/** * Notifies this instance that the dynamic payload types of the associated {@link MediaStream} * have changed. */ public void onDynamicPayloadTypesChanged() { rtxPayloadType = -1; rtxAssociatedPayloadType = -1; MediaStream mediaStream = channel.getStream(); Map<Byte, MediaFormat> mediaFormatMap = mediaStream.getDynamicRTPPayloadTypes(); Iterator<Map.Entry<Byte, MediaFormat>> it = mediaFormatMap.entrySet().iterator(); while (it.hasNext() && rtxPayloadType == -1) { Map.Entry<Byte, MediaFormat> entry = it.next(); MediaFormat format = entry.getValue(); if (!Constants.RTX.equalsIgnoreCase(format.getEncoding())) { continue; } // XXX(gp) we freak out if multiple codecs with RTX support are // present. rtxPayloadType = entry.getKey(); rtxAssociatedPayloadType = Byte.parseByte(format.getFormatParameters().get("apt")); } }