winamp/Src/external_dependencies/libmp4v2/atom_avc1.cpp
2024-09-24 14:54:57 +02:00

82 lines
2.2 KiB
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. 2004. All Rights Reserved.
*
* Contributor(s):
* Bill May wmay@cisco.com
*/
#include "mp4common.h"
MP4Avc1Atom::MP4Avc1Atom()
: MP4Atom("avc1")
{
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("AVC Coding");
AddProperty(pProp); /* 6 */
AddReserved("reserved4", 4); /* 7 */
ExpectChildAtom("avcC", Required, OnlyOne);
ExpectChildAtom("btrt", Optional, OnlyOne);
// for now ExpectChildAtom("m4ds", Optional, OnlyOne);
}
void MP4Avc1Atom::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);
}