diff options
Diffstat (limited to 'Src/external_dependencies/libmp4v2/3gpmeta.cpp')
| -rw-r--r-- | Src/external_dependencies/libmp4v2/3gpmeta.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/Src/external_dependencies/libmp4v2/3gpmeta.cpp b/Src/external_dependencies/libmp4v2/3gpmeta.cpp new file mode 100644 index 00000000..a74c59be --- /dev/null +++ b/Src/external_dependencies/libmp4v2/3gpmeta.cpp @@ -0,0 +1,179 @@ +#include "mp4common.h" + +size_t utf16len(const uint16_t *str) +{ + size_t size=0; + while (*str++) size++; + return size; +} + +void utf16swap(uint16_t *str) +{ + while (*str) + { + *str = htons(*str); + str++; + } +} + +bool MP4File::Get3GPMetadataString(const char *atom, uint16_t **value) +{ + char atomstring[60]; + snprintf(atomstring, 60, "moov.udta.%s.metadata", atom); + const uint8_t *str = (const uint8_t *)this->GetStringProperty(atomstring); + + if (str) + { + bool reverse=false; + bool utf16=false; + if ((str[0] == 0xFE && str[1] == 0xFF)) + { + reverse=true; + utf16=true; + } + if ((str[0] == 0xFF && str[1] == 0xFE)) + { + utf16=true; + } + + if (utf16) + { + uint16_t *utf16 = (uint16_t *)str; + size_t len = utf16len(utf16); + *value = (uint16_t *)malloc(len*sizeof(uint16_t)); + if (!*value) + return false; + memcpy(*value, utf16+1, len*sizeof(uint16_t)); + + if (reverse) + utf16swap(*value); + } + else + { + int len = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)str, -1, 0, 0); + *value = (uint16_t *)malloc(len * sizeof(uint16_t)); + if (*value == NULL) + { + return false; + } + MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)str, -1, (LPWSTR)*value, len); + } + + + + return true; + } + return false; +} + + +bool MP4File::Set3GPMetadataString(const char *atom, const uint16_t *value) +{ + char atomstring[60]; + MP4Atom *pMetaAtom; + MP4StringProperty *pMetadataProperty = NULL; + MP4Integer16Property *unknown = NULL; + snprintf(atomstring, 60, "moov.udta.%s", atom); + + pMetaAtom = m_pRootAtom->FindAtomMP4(atomstring); + + if (!pMetaAtom) + { + (void)AddDescendantAtoms("moov", atomstring+5); + + //if (!CreateMetadataAtom(atom)) + //return false; + + pMetaAtom = m_pRootAtom->FindAtomMP4(atomstring); + if (pMetaAtom == NULL) return false; + } + + snprintf(atomstring, 60, "%s.language", atom); + ASSERT(pMetaAtom->FindProperty(atomstring, + (MP4Property**)&unknown)); + ASSERT(unknown); + unknown->SetValue(0x15C7); + + + snprintf(atomstring, 60, "%s.metadata", atom); + ASSERT(pMetaAtom->FindProperty(atomstring, + (MP4Property**)&pMetadataProperty)); + ASSERT(pMetadataProperty); + + pMetadataProperty->SetUnicode(true); + size_t lenWithBOM = utf16len(value) + 1; + uint16_t *newVal = (uint16_t *)malloc((lenWithBOM+1) * sizeof(uint16_t)); + newVal[0]=0xFEFF; + memcpy(newVal+1, value, lenWithBOM*sizeof(uint16_t)); + pMetadataProperty->SetValue((char *)newVal, 0); + free(newVal); + + return true; +} + +bool MP4File::Get3GPMetadataInteger(const char *atom, uint64_t *value) +{ + char atomstring[60]; + snprintf(atomstring, 60, "moov.udta.%s.metadata", atom); + + MP4Property* pProperty; + u_int32_t index; + + FindIntegerProperty(atomstring, &pProperty, &index); + if (pProperty) + { + *value = ((MP4IntegerProperty*)pProperty)->GetValue(index); + return true; + } + return false; +} + +bool MP4File::Set3GPMetadataInteger(const char *atom, uint64_t value) +{ + char atomstring[60] = {0}; + MP4Atom *pMetaAtom; + MP4IntegerProperty *pMetadataProperty = NULL; + snprintf(atomstring, 60, "moov.udta.%s", atom); + + pMetaAtom = m_pRootAtom->FindAtomMP4(atomstring); + + if (!pMetaAtom) + { + (void)AddDescendantAtoms("moov", atomstring+5); + //if (!CreateMetadataAtom(atom)) + //return false; + + pMetaAtom = m_pRootAtom->FindAtomMP4(atomstring); + if (pMetaAtom == NULL) return false; + } + + snprintf(atomstring, 60, "%s.metadata", atom); + ASSERT(pMetaAtom->FindProperty(atomstring, + (MP4Property**)&pMetadataProperty)); + ASSERT(pMetadataProperty); + + pMetadataProperty->SetValue(value, 0); + return true; +} + +bool MP4File::Delete3GPMetadataAtom(const char* name) +{ + MP4Atom *pMetaAtom = NULL; + char s[256]; + + snprintf(s, 256, "moov.udta.%s", name); + pMetaAtom = m_pRootAtom->FindAtomMP4(s); + /* if it exists, delete it */ + if (pMetaAtom) + { + MP4Atom *pParent = pMetaAtom->GetParentAtom(); + + pParent->DeleteChildAtom(pMetaAtom); + + delete pMetaAtom; + + return true; + } + + return false; +}
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