Initial community commit

Src/external_dependencies/libmp4v2/3gp.cpp

@@ -0,0 +1,128 @@
+/*
+ * 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);
+	}
+
+}