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Media (macOS): adds length & position detection support

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Carter Li
2026-05-12 15:07:08 +08:00
parent 7799dbe481
commit 1400291ae9
4 changed files with 150 additions and 59 deletions
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src/common/apple/cf_helpers.c
+41
View File
@@ -34,6 +34,29 @@ const char* ffCfNumGetInt(CFTypeRef cf, int32_t* result) {
return "TypeID is neither 'CFNumber' nor 'CFData'";
}
const char* ffCfNumGetDouble(CFTypeRef cf, double* result) {
if (CFGetTypeID(cf) == CFNumberGetTypeID()) {
if (!CFNumberGetValue((CFNumberRef) cf, kCFNumberDoubleType, result) &&
!CFNumberGetValue((CFNumberRef) cf, kCFNumberFloatType, result)) {
return "Number type is not Double or Float";
}
return NULL;
}
return "TypeID is neither 'CFNumber'";
}
const char* ffCfDateGetEpoch(CFTypeRef cf, uint64_t* result) {
if (CFGetTypeID(cf) != CFDateGetTypeID()) {
return "TypeID is not 'CFDate'";
}
CFAbsoluteTime absTime = CFDateGetAbsoluteTime((CFDateRef) cf);
// Convert from seconds to milliseconds and add the difference between 1970 and 2001 in milliseconds
*result = (uint64_t) ((absTime + 978307200 /*kCFAbsoluteTimeIntervalSince1970*/) * 1000);
return NULL;
}
const char* ffCfStrGetString(CFTypeRef cf, FFstrbuf* result) {
ffStrbufClear(result);
if (!cf) {
@@ -149,6 +172,15 @@ const char* ffCfDictGetInt64(CFDictionaryRef dict, CFStringRef key, int64_t* res
return ffCfNumGetInt64(cf, result);
}
const char* ffCfDictGetDouble(CFDictionaryRef dict, CFStringRef key, double* result) {
CFTypeRef cf = (CFTypeRef) CFDictionaryGetValue(dict, key);
if (cf == NULL) {
return "CFDictionaryGetValue() failed";
}
return ffCfNumGetDouble(cf, result);
}
const char* ffCfDictGetData(CFDictionaryRef dict, CFStringRef key, uint32_t offset, uint32_t size, uint8_t* result, uint32_t* length) {
CFTypeRef cf = (CFTypeRef) CFDictionaryGetValue(dict, key);
if (cf == NULL) {
@@ -182,3 +214,12 @@ const char* ffCfDictGetDict(CFDictionaryRef dict, CFStringRef key, CFDictionaryR
*result = cf;
return NULL;
}
const char* ffCfDictGetDateAsEpoch(CFDictionaryRef dict, CFStringRef key, uint64_t* result) {
CFTypeRef cf = (CFTypeRef) CFDictionaryGetValue(dict, key);
if (cf == NULL) {
return "CFDictionaryGetValue() failed";
}
return ffCfDateGetEpoch(cf, result);
}
src/common/apple/cf_helpers.h
+4
View File
@@ -8,14 +8,18 @@
const char* ffCfStrGetString(CFTypeRef cf, FFstrbuf* result);
const char* ffCfNumGetInt(CFTypeRef cf, int32_t* result);
const char* ffCfNumGetInt64(CFTypeRef cf, int64_t* result);
const char* ffCfNumGetDouble(CFTypeRef cf, double* result);
const char* ffCfDateGetEpoch(CFTypeRef cf, uint64_t* result);
const char* ffCfDataGetDataAsString(CFTypeRef cf, FFstrbuf* result);
const char* ffCfDictGetString(CFDictionaryRef dict, CFStringRef key, FFstrbuf* result);
const char* ffCfDictGetBool(CFDictionaryRef dict, CFStringRef key, bool* result);
const char* ffCfDictGetInt(CFDictionaryRef dict, CFStringRef key, int* result);
const char* ffCfDictGetInt64(CFDictionaryRef dict, CFStringRef key, int64_t* result);
const char* ffCfDictGetDouble(CFDictionaryRef dict, CFStringRef key, double* result);
const char* ffCfDictGetData(CFDictionaryRef dict, CFStringRef key, uint32_t offset, uint32_t size, uint8_t* result, uint32_t* length);
const char* ffCfDictGetDataAsString(CFDictionaryRef dict, CFStringRef key, FFstrbuf* result);
const char* ffCfDictGetDict(CFDictionaryRef dict, CFStringRef key, CFDictionaryRef* result);
const char* ffCfDictGetDateAsEpoch(CFDictionaryRef dict, CFStringRef key, uint64_t* result);
static inline CFNumberRef ffCfCreateInt(int value) {
return CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &value);