ref: 5fb579cefe331eb9f62585d481dbbec3447a6bad
dir: /common/mp4v2/odcommands.cpp/
/* * 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" MP4ODUpdateDescriptor::MP4ODUpdateDescriptor() : MP4Descriptor(MP4ODUpdateODCommandTag) { // just a container for ObjectDescriptors AddProperty( /* 0 */ new MP4DescriptorProperty(NULL, MP4FileODescrTag, 0, Required, Many)); } MP4ODRemoveDescriptor::MP4ODRemoveDescriptor() : MP4Descriptor(MP4ODRemoveODCommandTag) { MP4Integer32Property* pCount = new MP4Integer32Property("entryCount"); pCount->SetImplicit(); AddProperty(pCount); /* 0 */ MP4TableProperty* pTable = new MP4TableProperty("entries", pCount); AddProperty(pTable); /* 1 */ pTable->AddProperty( /* 1, 0 */ new MP4BitfieldProperty("objectDescriptorId", 10)); } void MP4ODRemoveDescriptor::Read(MP4File* pFile) { // table entry count computed from descriptor size ((MP4Integer32Property*)m_pProperties[0])->SetReadOnly(false); ((MP4Integer32Property*)m_pProperties[0])->SetValue((m_size * 8) / 10); ((MP4Integer32Property*)m_pProperties[0])->SetReadOnly(true); MP4Descriptor::Read(pFile); } MP4ESUpdateDescriptor::MP4ESUpdateDescriptor() : MP4Descriptor(MP4ESUpdateODCommandTag) { AddProperty( /* 0 */ new MP4BitfieldProperty("objectDescriptorId", 10)); AddProperty( /* 1 */ new MP4BitfieldProperty("pad", 6)); AddProperty( /* 2 */ new MP4DescriptorProperty("esIdRefs", MP4ESIDRefDescrTag, 0, Required, Many)); } // LATER might be able to combine with ESUpdateDescriptor MP4ESRemoveDescriptor::MP4ESRemoveDescriptor() : MP4Descriptor(MP4ESRemoveODCommandTag) { AddProperty( /* 0 */ new MP4BitfieldProperty("objectDescriptorId", 10)); AddProperty( /* 1 */ new MP4BitfieldProperty("pad", 6)); AddProperty( /* 2 */ new MP4DescriptorProperty("esIdRefs", MP4ESIDRefDescrTag, 0, Required, Many)); } MP4Descriptor* CreateODCommand(u_int8_t tag) { MP4Descriptor* pDescriptor = NULL; switch (tag) { case MP4ODUpdateODCommandTag: pDescriptor = new MP4ODUpdateDescriptor(); break; case MP4ODRemoveODCommandTag: pDescriptor = new MP4ODRemoveDescriptor(); break; case MP4ESUpdateODCommandTag: pDescriptor = new MP4ESUpdateDescriptor(); break; case MP4ESRemoveODCommandTag: pDescriptor = new MP4ESRemoveDescriptor(); break; } return pDescriptor; }