HTTP Live Streaming causes BAD_EXC_ACCESS at GCDAsyncSocket.m / doWriteData

[Ben Skarsgård]

Hi Guys,

when I try to stream a NSData (MP4 file) and playing it I got a bad exc access. My buffer ist empty, but I have no idea why and I'm not very common with coding C code.

GCDAsyncSocket.m / -(void)doWriteData

[...]

const uint8_t *buffer = (const uint8_t *)[currentWrite->buffer bytes] + currentWrite->bytesDone; <= BAD_EXC_ACCESS

[...]

enqueued from HTTPConnection.m / -

[...]

[asyncSocket writeData:responseData withTimeout:TIMEOUT_WRITE_HEAD tag:HTTP_PARTIAL_RESPONSE_HEADER];

[...]

What I did:

I've subclassed HTTPConnection:

MyHTTPConnection.m

 - (NSObject<HTTPResponse> *)httpResponseForMethod:(NSString *)method URI:(NSString *)path

{

    NSData *data = [NSData dataWithContentsOfFile:[FileHandler videoFilePathWithIdentifier:1]];

    NSError *error;

   self.videoData = [RNDecryptor decryptData:data withSettings:kRNCryptorAES256Settings password:MyCryptoPhrase error:&error];

    

    return [[HTTPDataResponse alloc] initWithData:self.videoData]];

}

The part at the viewcontroller where my videofile should be played:

    httpServer = [[HTTPServer alloc] init];

    [httpServer setType:@"_http._tcp."];

    [httpServer setPort:33566];

    [httpServer setConnectionClass:[MyHTTPConnection class]];

        

    if (![httpServer start:&error]) {

        NSLog(@"Error starting HTTP Server: %@", error);

    }

    

    NSString *server = [NSString stringWithFormat:@"http://localhost:%hu", httpServer.listeningPort];

    NSURL *myURL = [NSURL URLWithString: [NSString stringWithFormat: @"%@", server]];

    

    self.moviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:myURL];

    

    [self.moviePlayerController setControlStyle:MPMovieControlStyleDefault];

    self.moviePlayerController.movieSourceType = MPMovieSourceTypeStreaming;

    [self.moviePlayerController prepareToPlay];

    [self.moviePlayerController.view setFrame: CGRectMake(0, 0, 1024, 768)];

    [self.view addSubview:self.moviePlayerController.view];

    

    [self.moviePlayerController play];

I know loading NSData is not the best idea for videos, but the video files are really small: 3 MB.

Perhaps anyone here has got an idea, I'm really getting desperate.. 

Thanks so far,

Ben

[Ben Skarsgård]

I have no idea why, but I replaced cocoahttpserver from github with cocoahttpserver used in iphoneHTTPServer.. so now it works.

Thanks,

Ben

[isPrivate luo]

So it's work for you?

在 2014年12月15日星期一 UTC+8下午1:36:46，Ben Skarsgård写道：