[webSocket发送text and binary message]

ws.m

- (void)SRWebSocketDidOpen {
    NSLog(@"开启成功");
    //在成功后需要做的操作。。。
    
    NSDictionary *dict = @{
                          @"ref_text": @"sunny",
                          @"audio_format": @{
                                  @"type": @"WAV",
                                  @"audio_channel": @(1),
                                  @"sample_rate": @(16000)
                                  }
                          };
    
    if ([NSJSONSerialization isValidJSONObject:dict]){
        NSError *error;
        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
        NSString *jsonString =[[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
        [[SocketRocketUtility instance] sendData:jsonString];
    }
    
    
    NSString *path= [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"5d71c6b41faee04074000001.wav"];
    NSData *data = [[NSData alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path]];
    
    NSMutableData *dataM = [NSMutableData dataWithData:data];
    unsigned char endBytes[3] = {0x45, 0x4f, 0x53};
    [dataM appendBytes:&endBytes length:3];
    
    [[SocketRocketUtility instance] sendData:dataM];
        
}


-------------------------------------------------------------------------------
NSMutableData *data = [[NSMutableData alloc] init];
uint8_t number = 255;
[data appendBytes:&number length:2];

http://cn.voidcc.com/question/p-ckiotlso-sk.html
const NSUInteger dataLength = 130; 
unsigned char dataBytes[dataLength] = { 
0x01,0x00,0x00,0x04,0x40,0x00,0x00,0x00,0x00,0x41,0x41,0x41,0x41,0x48,0x47,0x5A, 
0x30,0x65,0x58,0x42,0x4E,0x4E,0x45,0x45,0x67,0x41,0x41,0x41,0x41,0x41,0x45,0x30, 
0x30,0x51,0x53,0x42,0x74,0x63,0x44,0x51,0x79,0x61,0x58,0x4E,0x76,0x62,0x51,0x41, 
0x41,0x41,0x2B,0x39,0x74,0x62,0x32,0x39,0x32,0x41,0x41,0x41,0x41,0x62,0x47,0x31, 
0x32,0x61,0x47,0x51,0x41,0x41,0x41,0x41,0x41,0x71,0x67,0x59,0x35,0x79,0x36,0x6F, 
0x47,0x4F,0x63,0x73,0x41,0x41,0x4B,0x78,0x45,0x41,0x41,0x43,0x34,0x41,0x41,0x41, 
0x42,0x41,0x41,0x41,0x42,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41, 
0x41,0x41,0x41,0x41,0x41,0x41,0x51,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41, 
0x41,0x41}; 
NSData *data = [NSData dataWithBytes:dataBytes length:130]; 

const NSUInteger startBytesLength = 4; 
unsigned char startBytes[startBytesLength] = {0x40, 0x00, 0x00, 0x00}; 
const NSUInteger stopBytesLength = 1; 
unsigned char stopBytes[stopBytesLength] = {0x34}; 


NSData *startData = [NSData dataWithBytes:startBytes length:startBytesLength]; 
NSData *stopData = [NSData dataWithBytes:stopBytes length:stopBytesLength]; 
NSRange startRange = [data rangeOfData:startData options:0 range:NSMakeRange(0, dataLength)]; 
NSUInteger start = startRange.location; 

NSRange stopRange = [data rangeOfData:stopData options:0 range:NSMakeRange(start+startBytesLength, dataLength-(start+startBytesLength))]; 
NSUInteger length = stopRange.location - start; 
NSUInteger stopLocation = stopRange.location+stopBytesLength; 

NSData *extractData = [data subdataWithRange:NSMakeRange(start, length)]; 
NSLog(@"extractData: %@", extractData); 

NSMutableData *newData = [NSMutableData data]; 
[newData appendData:[data subdataWithRange:NSMakeRange(0, start)]]; 
[newData appendData:[data subdataWithRange:NSMakeRange(stopLocation, dataLength-stopLocation)]]; 
NSLog(@"newData: %@", newData);