atom_mp4v.cpp
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:2k
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"
- MP4Mp4vAtom::MP4Mp4vAtom()
- : MP4Atom("mp4v")
- {
- AddReserved("reserved1", 6); /* 0 */
- AddProperty( /* 1 */
- new MP4Integer16Property("dataReferenceIndex"));
- AddReserved("reserved2", 16); /* 2 */
- AddProperty( /* 3 */
- new MP4Integer16Property("width"));
- AddProperty( /* 4 */
- new MP4Integer16Property("height"));
- AddReserved("reserved3", 14); /* 5 */
- MP4StringProperty* pProp =
- new MP4StringProperty("compressorName");
- pProp->SetFixedLength(32);
- pProp->SetValue("");
- AddProperty(pProp); /* 6 */
- AddReserved("reserved4", 4); /* 7 */
- ExpectChildAtom("esds", Required, OnlyOne);
- }
- void MP4Mp4vAtom::Generate()
- {
- MP4Atom::Generate();
- ((MP4Integer16Property*)m_pProperties[1])->SetValue(1);
- // property reserved3 has non-zero fixed values
- static u_int8_t reserved3[14] = {
- 0x00, 0x48, 0x00, 0x00,
- 0x00, 0x48, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x01,
- };
- m_pProperties[5]->SetReadOnly(false);
- ((MP4BytesProperty*)m_pProperties[5])->
- SetValue(reserved3, sizeof(reserved3));
- m_pProperties[5]->SetReadOnly(true);
- // property reserved4 has non-zero fixed values
- static u_int8_t reserved4[4] = {
- 0x00, 0x18, 0xFF, 0xFF,
- };
- m_pProperties[7]->SetReadOnly(false);
- ((MP4BytesProperty*)m_pProperties[7])->
- SetValue(reserved4, sizeof(reserved4));
- m_pProperties[7]->SetReadOnly(true);
- }