我试图在iOS项目中使用FUNCTION XMLTEST (P_XML VARCHAR2) RETURN VARCHAR2 AS
V_FLAG VARCHAR2(4000);
BEGIN
WITH test_data AS
(SELECT xmltype(P_XML) data
FROM dual
)
SELECT extractValue(data,'/boolean','xmlns="http://SOAPwebservice.com/WebServices/Methods"')
FROM test_data;
return V_FLAG;
将M4A音频文件转换为MP3格式，语言：目标C.为了方便起见，我尝试使用ffmpeg < / p>
我使用通过CocoaPods安装的ffmpeg ver 2.8.3和FFmpegWrapper 1.0。在FFmpegWrapper，它显示我使用的是最新版本。
这是我的代码：
pod outdated结果转换失败时显示以下日志：
- (void) convertMP4ToMP3
{
NSString *inputFormat = @"m4a";
NSString *outputFormat = @"mp3";
NSString *inputFileName = @"audio";
NSString *outputFileName = @"outputAudio";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *inputFilePath = [[NSBundle mainBundle] pathForResource:inputFileName ofType:inputFormat];
NSString *outputFilePath = [documentsDirectory stringByAppendingPathComponent:[outputFileName stringByAppendingPathExtension:outputFormat]];
if ([[NSFileManager defaultManager] fileExistsAtPath:outputFilePath])
{
[[NSFileManager defaultManager] removeItemAtPath:outputFilePath error:nil];
}
FFmpegWrapper *wrapper = [[FFmpegWrapper alloc] init];
NSDictionary *options = @{kFFmpegInputFormatKey : inputFormat, kFFmpegOutputFormatKey : outputFormat};
[wrapper convertInputPath:inputFilePath outputPath:outputFilePath options:options progressBlock:^(NSUInteger bytesRead, uint64_t totalBytesRead, uint64_t totalBytesExpectedToRead) {
} completionBlock:^(BOOL success, NSError *error) {
success ? NSLog(@"Success!") : NSLog(@"Error : %@",error.localizedDescription);
}];
}
任何帮助都将不胜感激。