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https://github.com/Swiftgram/Telegram-iOS.git
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72 lines
2.2 KiB
Objective-C
72 lines
2.2 KiB
Objective-C
#import "TGAudioMediaAttachment.h"
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@implementation TGAudioMediaAttachment
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- (instancetype)init
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{
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self = [super init];
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if (self != nil)
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{
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self.type = TGAudioMediaAttachmentType;
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}
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return self;
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}
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- (void)serialize:(NSMutableData *)data
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{
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int dataLengthPtr = (int)data.length;
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int32_t zero = 0;
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[data appendBytes:&zero length:4];
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[data appendBytes:&_audioId length:8];
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[data appendBytes:&_accessHash length:8];
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[data appendBytes:&_datacenterId length:4];
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[data appendBytes:&_localAudioId length:8];
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[data appendBytes:&_duration length:4];
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[data appendBytes:&_fileSize length:4];
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NSData *audioUriData = [_audioUri dataUsingEncoding:NSUTF8StringEncoding];
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int32_t audioUriLength = (int32_t)audioUriData.length;
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[data appendBytes:&audioUriLength length:4];
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if (audioUriLength != 0)
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[data appendData:audioUriData];
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int dataLength = (int)(data.length - dataLengthPtr - 4);
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[data replaceBytesInRange:NSMakeRange(dataLengthPtr, 4) withBytes:&dataLength];
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}
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- (TGMediaAttachment *)parseMediaAttachment:(NSInputStream *)is
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{
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int dataLength = 0;
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[is read:(uint8_t *)&dataLength maxLength:4];
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TGAudioMediaAttachment *attachment = [[TGAudioMediaAttachment alloc] init];
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if (attachment != nil)
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{
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[is read:(uint8_t *)&attachment->_audioId maxLength:8];
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[is read:(uint8_t *)&attachment->_accessHash maxLength:8];
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[is read:(uint8_t *)&attachment->_datacenterId maxLength:4];
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[is read:(uint8_t *)&attachment->_localAudioId maxLength:8];
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[is read:(uint8_t *)&attachment->_duration maxLength:4];
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[is read:(uint8_t *)&attachment->_fileSize maxLength:4];
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int32_t audioUriLength = 0;
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[is read:(uint8_t *)&audioUriLength maxLength:4];
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if (audioUriLength != 0)
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{
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uint8_t *audioUriBytes = malloc(audioUriLength);
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[is read:audioUriBytes maxLength:audioUriLength];
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attachment.audioUri = [[NSString alloc] initWithBytesNoCopy:audioUriBytes length:audioUriLength encoding:NSUTF8StringEncoding freeWhenDone:true];
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}
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}
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return attachment;
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}
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@end
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