qosqualifiers.cpp
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上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is MPEG4IP.
- *
- * The Initial Developer of the Original Code is Cisco Systems Inc.
- * Portions created by Cisco Systems Inc. are
- * Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
- *
- * Contributor(s):
- * Dave Mackie dmackie@cisco.com
- */
- #include "mp4common.h"
- MP4QosDescriptor::MP4QosDescriptor()
- : MP4Descriptor(MP4QosDescrTag)
- {
- AddProperty( /* 0 */
- new MP4Integer8Property("predefined"));
- AddProperty( /* 1 */
- new MP4QosQualifierProperty("qualifiers",
- MP4QosTagsStart, MP4QosTagsEnd, Optional, Many));
- }
- MP4MaxDelayQosQualifier::MP4MaxDelayQosQualifier()
- : MP4QosQualifier(MP4MaxDelayQosTag)
- {
- AddProperty( /* 0 */
- new MP4Integer32Property("maxDelay"));
- }
- MP4PrefMaxDelayQosQualifier::MP4PrefMaxDelayQosQualifier()
- : MP4QosQualifier(MP4PrefMaxDelayQosTag)
- {
- AddProperty( /* 0 */
- new MP4Integer32Property("prefMaxDelay"));
- }
- MP4LossProbQosQualifier::MP4LossProbQosQualifier()
- : MP4QosQualifier(MP4LossProbQosTag)
- {
- AddProperty( /* 0 */
- new MP4Float32Property("lossProb"));
- }
- MP4MaxGapLossQosQualifier::MP4MaxGapLossQosQualifier()
- : MP4QosQualifier(MP4MaxGapLossQosTag)
- {
- AddProperty( /* 0 */
- new MP4Integer32Property("maxGapLoss"));
- }
- MP4MaxAUSizeQosQualifier::MP4MaxAUSizeQosQualifier()
- : MP4QosQualifier(MP4MaxAUSizeQosTag)
- {
- AddProperty( /* 0 */
- new MP4Integer32Property("maxAUSize"));
- }
- MP4AvgAUSizeQosQualifier::MP4AvgAUSizeQosQualifier()
- : MP4QosQualifier(MP4AvgAUSizeQosTag)
- {
- AddProperty( /* 0 */
- new MP4Integer32Property("avgAUSize"));
- }
- MP4MaxAURateQosQualifier::MP4MaxAURateQosQualifier()
- : MP4QosQualifier(MP4MaxAURateQosTag)
- {
- AddProperty( /* 0 */
- new MP4Integer32Property("maxAURate"));
- }
- MP4UnknownQosQualifier::MP4UnknownQosQualifier()
- : MP4QosQualifier()
- {
- AddProperty( /* 0 */
- new MP4BytesProperty("data"));
- }
- void MP4UnknownQosQualifier::Read(MP4File* pFile)
- {
- ReadHeader(pFile);
- /* byte properties need to know how long they are before reading */
- ((MP4BytesProperty*)m_pProperties[0])->SetValueSize(m_size);
- ReadProperties(pFile);
- }
- MP4Descriptor* MP4QosQualifierProperty::CreateDescriptor(u_int8_t tag)
- {
- MP4Descriptor* pDescriptor = NULL;
- switch (tag) {
- case MP4MaxDelayQosTag:
- pDescriptor = new MP4MaxDelayQosQualifier();
- break;
- case MP4PrefMaxDelayQosTag:
- pDescriptor = new MP4PrefMaxDelayQosQualifier();
- break;
- case MP4LossProbQosTag:
- pDescriptor = new MP4LossProbQosQualifier();
- break;
- case MP4MaxGapLossQosTag:
- pDescriptor = new MP4MaxGapLossQosQualifier();
- break;
- case MP4MaxAUSizeQosTag:
- pDescriptor = new MP4MaxAUSizeQosQualifier();
- break;
- case MP4AvgAUSizeQosTag:
- pDescriptor = new MP4AvgAUSizeQosQualifier();
- break;
- case MP4MaxAURateQosTag:
- pDescriptor = new MP4MaxAURateQosQualifier();
- break;
- default:
- pDescriptor = new MP4UnknownQosQualifier();
- pDescriptor->SetTag(tag);
- }
- return pDescriptor;
- }