Video streaming with ipCamera in iphone - iphone

Question

I am developing app for the connecting ip camera and get stream. I don't know how to convert stream into video. I have analysed, and then i tried FFMPEG library. But i did not get correct url for ios with FFMPEG. Can you suggest the guide for implementation.
Now i am integrating ffmpeg, when i integrated i got the error when opening avformat_find_stream_info() function. I used the increase or less the value of pFormatCtx->max_analyze_duration. But no solution for this.
[mjpeg # 0x8b85000] max_analyze_duration 1000 reached at 40000
[mjpeg # 0x8b85000] Estimating duration from bitrate, this may be inaccurate
Pls help how to solve this.

Answer 1

Look at the "AVCam" example from Apple.
It does exactly that, and with lots of inline comments.
https://developer.apple.com/library/ios/#samplecode/AVCam/Introduction/Intro.html
Here is a small code snippet that will point you in the right direction:
Create an AVCaptureSession first...
// Init the device inputs
AVCaptureDeviceInput *newVideoInput = [[AVCaptureDeviceInput alloc] initWithDevice:[self backFacingCamera] error:nil];
AVCaptureDeviceInput *newAudioInput = [[AVCaptureDeviceInput alloc] initWithDevice:[self audioDevice] error:nil];
// Setup the still image file output
AVCaptureStillImageOutput *newStillImageOutput = [[AVCaptureStillImageOutput alloc] init];
NSDictionary *outputSettings = [[NSDictionary alloc] initWithObjectsAndKeys:
AVVideoCodecJPEG, AVVideoCodecKey,
nil];
[newStillImageOutput setOutputSettings:outputSettings];
[outputSettings release];
// Create session (use default AVCaptureSessionPresetHigh)
AVCaptureSession *newCaptureSession = [[AVCaptureSession alloc] init];
Create the video file output
AVCaptureMovieFileOutput *aMovieFileOutput = [[AVCaptureMovieFileOutput alloc] init];
if ([aSession canAddOutput:aMovieFileOutput])
[aSession addOutput:aMovieFileOutput];
Save the file:
-(void)recorder:(AVCamRecorder *)recorder recordingDidFinishToOutputFileURL:(NSURL *)outputFileURL error:(NSError *)error
{
if ([[self recorder] recordsAudio] && ![[self recorder] recordsVideo]) {
// If the file was created on a device that doesn't support video recording, it can't be saved to the assets
// library. Instead, save it in the app's Documents directory, whence it can be copied from the device via
// iTunes file sharing.
[self copyFileToDocuments:outputFileURL];
if ([[UIDevice currentDevice] isMultitaskingSupported]) {
[[UIApplication sharedApplication] endBackgroundTask:[self backgroundRecordingID]];
}
if ([[self delegate] respondsToSelector:#selector(captureManagerRecordingFinished:)]) {
[[self delegate] captureManagerRecordingFinished:self];
}
}
else {
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library writeVideoAtPathToSavedPhotosAlbum:outputFileURL
completionBlock:^(NSURL *assetURL, NSError *error) {
if (error) {
if ([[self delegate] respondsToSelector:#selector(captureManager:didFailWithError:)]) {
[[self delegate] captureManager:self didFailWithError:error];
}
}
if ([[UIDevice currentDevice] isMultitaskingSupported]) {
[[UIApplication sharedApplication] endBackgroundTask:[self backgroundRecordingID]];
}
if ([[self delegate] respondsToSelector:#selector(captureManagerRecordingFinished:)]) {
[[self delegate] captureManagerRecordingFinished:self];
}
}];
[library release];
}
}