winamp/Src/external_dependencies/libmp4v2/3gp.cpp
2024-09-24 14:54:57 +02:00

129 lines
3.9 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. 2001. All Rights Reserved.
*
* 3GPP features implementation is based on 3GPP's TS26.234-v5.60,
* and was contributed by Ximpo Group Ltd.
*
* Portions created by Ximpo Group Ltd. are
* Copyright (C) Ximpo Group Ltd. 2003, 2004. All Rights Reserved.
*
* Contributor(s):
* Ximpo Group Ltd. mp4v2@ximpo.com
*/
#include "mp4common.h"
#define _3GP_MAJOR_BRAND "3gp5"
#define _3GP_MINOR_VERSION 0x0001
void MP4File::Make3GPCompliant(const MP4_FILENAME_CHAR* fileName, char* majorBrand, u_int32_t minorVersion, char** supportedBrands, u_int32_t supportedBrandsCount, bool deleteIodsAtom)
{
char brand[5] = "3gp5";
char* _3gpSupportedBrands[1] = { (char*)&brand };
if (majorBrand) {
if (!supportedBrands || !supportedBrandsCount) {
throw new MP4Error("Invalid parameters", "MP4File::Make3GPCompliant");
}
}
MakeFtypAtom(
majorBrand ? majorBrand : (char*)brand,
majorBrand ? minorVersion : _3GP_MINOR_VERSION,
majorBrand ? supportedBrands : (char**)_3gpSupportedBrands,
majorBrand ? supportedBrandsCount : 1);
if (deleteIodsAtom) {
// Delete the iods atom, if it exists....
MP4Atom* iodsAtom = m_pRootAtom->FindAtomMP4("moov.iods");
if (iodsAtom) {
MP4Atom* moovAtom = m_pRootAtom->FindAtomMP4("moov");
ASSERT(moovAtom);
moovAtom->DeleteChildAtom(iodsAtom);
}
}
}
void MP4File::MakeFtypAtom(char* majorBrand, u_int32_t minorVersion, char** supportedBrands, u_int32_t supportedBrandsCount)
{
bool rewriteNeeded = false;
u_int32_t currentSupportedBrandsCount;
u_int32_t i;
MP4Atom* ftypAtom = m_pRootAtom->FindAtomMP4("ftyp");
if (ftypAtom == NULL) {
ftypAtom = InsertChildAtom(m_pRootAtom, "ftyp", 0);
}
if (majorBrand == NULL)
return;
MP4StringProperty* pMajorBrandProperty;
if (!ftypAtom->FindProperty(
"ftyp.majorBrand",
(MP4Property**)&pMajorBrandProperty))
return;
pMajorBrandProperty->SetValue(majorBrand);
MP4Integer32Property* pMinorVersionProperty;
if (!ftypAtom->FindProperty(
"ftype.minorVersion",
(MP4Property**)&pMinorVersionProperty))
return;
pMinorVersionProperty->SetValue(minorVersion);
MP4Integer32Property* pCompatibleBrandsCountProperty;
if (!ftypAtom->FindProperty(
"ftyp.compatibleBrandsCount",
(MP4Property**)&pCompatibleBrandsCountProperty)) return;
currentSupportedBrandsCount = pCompatibleBrandsCountProperty->GetValue();
MP4TableProperty* pCompatibleBrandsProperty;
if (!ftypAtom->FindProperty(
"ftyp.compatibleBrands",
(MP4Property**)&pCompatibleBrandsProperty)) return;
MP4StringProperty* pBrandProperty = (MP4StringProperty*)
pCompatibleBrandsProperty->GetProperty(0);
ASSERT(pBrandProperty);
for (i = 0 ; i < ((currentSupportedBrandsCount > supportedBrandsCount) ? supportedBrandsCount : currentSupportedBrandsCount) ; i++) {
pBrandProperty->SetValue(supportedBrands[i], i);
}
if (i < supportedBrandsCount) {
for ( ; i < supportedBrandsCount ; i++) {
pBrandProperty->AddValue(supportedBrands[i]);
}
}
if (currentSupportedBrandsCount != supportedBrandsCount) {
rewriteNeeded = true;
pBrandProperty->SetCount(supportedBrandsCount);
pCompatibleBrandsCountProperty->SetReadOnly(false);
pCompatibleBrandsCountProperty->SetValue(supportedBrandsCount);
pCompatibleBrandsCountProperty->SetReadOnly(true);
}
}