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128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is MPEG4IP.
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*
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* The Initial Developer of the Original Code is Cisco Systems Inc.
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* Portions created by Cisco Systems Inc. are
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* Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
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*
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* 3GPP features implementation is based on 3GPP's TS26.234-v5.60,
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* and was contributed by Ximpo Group Ltd.
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*
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* Portions created by Ximpo Group Ltd. are
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* Copyright (C) Ximpo Group Ltd. 2003, 2004. All Rights Reserved.
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*
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* Contributor(s):
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* Ximpo Group Ltd. mp4v2@ximpo.com
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*/
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#include "mp4common.h"
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#define _3GP_MAJOR_BRAND "3gp5"
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#define _3GP_MINOR_VERSION 0x0001
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void MP4File::Make3GPCompliant(const MP4_FILENAME_CHAR* fileName, char* majorBrand, u_int32_t minorVersion, char** supportedBrands, u_int32_t supportedBrandsCount, bool deleteIodsAtom)
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{
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char brand[5] = "3gp5";
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char* _3gpSupportedBrands[1] = { (char*)&brand };
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if (majorBrand) {
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if (!supportedBrands || !supportedBrandsCount) {
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throw new MP4Error("Invalid parameters", "MP4File::Make3GPCompliant");
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}
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}
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MakeFtypAtom(
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majorBrand ? majorBrand : (char*)brand,
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majorBrand ? minorVersion : _3GP_MINOR_VERSION,
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majorBrand ? supportedBrands : (char**)_3gpSupportedBrands,
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majorBrand ? supportedBrandsCount : 1);
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if (deleteIodsAtom) {
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// Delete the iods atom, if it exists....
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MP4Atom* iodsAtom = m_pRootAtom->FindAtomMP4("moov.iods");
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if (iodsAtom) {
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MP4Atom* moovAtom = m_pRootAtom->FindAtomMP4("moov");
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ASSERT(moovAtom);
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moovAtom->DeleteChildAtom(iodsAtom);
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}
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}
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}
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void MP4File::MakeFtypAtom(char* majorBrand, u_int32_t minorVersion, char** supportedBrands, u_int32_t supportedBrandsCount)
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{
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bool rewriteNeeded = false;
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u_int32_t currentSupportedBrandsCount;
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u_int32_t i;
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MP4Atom* ftypAtom = m_pRootAtom->FindAtomMP4("ftyp");
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if (ftypAtom == NULL) {
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ftypAtom = InsertChildAtom(m_pRootAtom, "ftyp", 0);
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}
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if (majorBrand == NULL)
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return;
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MP4StringProperty* pMajorBrandProperty;
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if (!ftypAtom->FindProperty(
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"ftyp.majorBrand",
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(MP4Property**)&pMajorBrandProperty))
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return;
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pMajorBrandProperty->SetValue(majorBrand);
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MP4Integer32Property* pMinorVersionProperty;
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if (!ftypAtom->FindProperty(
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"ftype.minorVersion",
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(MP4Property**)&pMinorVersionProperty))
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return;
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pMinorVersionProperty->SetValue(minorVersion);
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MP4Integer32Property* pCompatibleBrandsCountProperty;
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if (!ftypAtom->FindProperty(
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"ftyp.compatibleBrandsCount",
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(MP4Property**)&pCompatibleBrandsCountProperty)) return;
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currentSupportedBrandsCount = pCompatibleBrandsCountProperty->GetValue();
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MP4TableProperty* pCompatibleBrandsProperty;
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if (!ftypAtom->FindProperty(
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"ftyp.compatibleBrands",
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(MP4Property**)&pCompatibleBrandsProperty)) return;
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MP4StringProperty* pBrandProperty = (MP4StringProperty*)
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pCompatibleBrandsProperty->GetProperty(0);
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ASSERT(pBrandProperty);
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for (i = 0 ; i < ((currentSupportedBrandsCount > supportedBrandsCount) ? supportedBrandsCount : currentSupportedBrandsCount) ; i++) {
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pBrandProperty->SetValue(supportedBrands[i], i);
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}
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if (i < supportedBrandsCount) {
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for ( ; i < supportedBrandsCount ; i++) {
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pBrandProperty->AddValue(supportedBrands[i]);
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}
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}
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if (currentSupportedBrandsCount != supportedBrandsCount) {
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rewriteNeeded = true;
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pBrandProperty->SetCount(supportedBrandsCount);
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pCompatibleBrandsCountProperty->SetReadOnly(false);
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pCompatibleBrandsCountProperty->SetValue(supportedBrandsCount);
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pCompatibleBrandsCountProperty->SetReadOnly(true);
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}
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}
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