StreamingKit

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http://voice.fishsaying.com/FlwWDLc6I78cZ_MqrtUI0MqN4QpF?e=1395560221&token=p2DofS0KOhrEU1OXKk2X3fv2MapiWWjbbeAvnNtX:ha7Pm2DWf4WWHGDNuSVmo_plEKc=

hi, guy, this audio file can not be played with errorCode:STKAudioPlayerErrorStreamParseBytesFailed

I guess, it doesn't have extension like to mp3 in your url.

Actually, many of streaming audio files don't have extension, how it works?

danube83 [email protected]于2014年3月17日星期一写道：

I guess, it doesn't have extension like to mp3 in your url.

— Reply to this email directly or view it on GitHubhttps://github.com/tumtumtum/StreamingKit/issues/89#issuecomment-37777472 .

Sent by My iPhone.

This occurs if the file wasn't formatted for steaming (metadata packets supplied at the beginning of the file). These types of files are currently unsupported.

do you plan to support it?

No plans at the moment. Will do one day when I have time or a need... :-)

http://voice.fishsaying.com/FoR3s5lWBWTiCIDc4nKkTPgoFIAT?e=1421331465&token=p2DofS0KOhrEU1OXKk2X3fv2MapiWWjbbeAvnNtX:X8eKG1pxaOcLqXCZbe2Job0Wrjs=

this url can not be played. how can i do to support!

I have an app that uses Apple's m4a encoding to create files. Most stream fine through StreamingKit, but some do not - and fail with the same error above. Given that they are all created in the same way - it seems to imply a bug in StreamingKit ?

Here is a file that plays fine https://firebasestorage.googleapis.com/v0/b/noiz-eee96.appspot.com/o/beatmakerboss-iv3ga91n-15mjxs8r_1478244129198.m4a?alt=media&token=25ffc143-8db7-44cb-af4f-c664e9a4567f

Here is a file that throws the UnexpectedError:

https://firebasestorage.googleapis.com/v0/b/noiz-eee96.appspot.com/o/max3dec-iv13fhc5-vea04g5f_1478214209542.m4a?alt=media&token=1aa4f2a8-e5ad-4a53-9291-b943fd7b4b63

Additionally the files stream absolutely fine in the browser.

Please advise ? Thanks!

Found something interesting ::

Have a look::

I am trying to use STKAudioPlayer to stream playback of audio files created with TAAE, and for the most part it is working great. But I have found that longer files do not stream properly, giving an error STKAudioPlayerErrorStreamParseBytesFailed which indicates the file has not been properly prepared for streaming. It seems AVAssetExportSession has an "shouldOptimizeForNetworkUse" property which puts certain file info at the beginning instead of the end of the file, and STKAudioPlayer relies on that data to stream properly. My guess is that the shorter files don't actually end up streaming because they fully load, but the longer ones hit this error.

Is there any way to save audio files in TAAE that meet STKAudioPlayer's streaming file criteria?

Thanks, Adrian

Man, this is a huge issue. All of our work is in jeopardy because we can't have our app not play some files just because they are longer.

Regardless of the fact that m4a encoded streams causing crashes and content errors being a massive problem for me personally and having a desperate desire to see this resolved; @tumtumtum is in no way obliged to support his open source project, it is without any form of warranty or contract (bar the GPL).

If we want these issues resolved we need to band together, dig deep and fix it ourselves.

I agree, but since he created it, maybe it would be easier for him. But if not, then it is what it is.

Can't we have a method to look at the size of the file, and if it's a local file, have it wait for it to completely load before attempting to stream? One thing is to stream a remote file, but why not be able to play local files without the streaming portion of the player?

Have you tried setting the buffer size of streaming kit to > 6 minutes and seeing if it fills the buffer?

I will try right now.

Thanks!

On May 24, 2017, at 12:09 PM, Pat Quinn [email protected] wrote:

Have you tried setting the buffer size of streaming kit to > 6 minutes and seeing if it fills the buffer?

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    .readBufferSize = 600,
    .bufferSizeInSeconds = 600,
    .secondsRequiredToStartPlaying = 700,
    .flushQueueOnSeek = YES,
    .enableVolumeMixer = YES,
    .equalizerBandFrequencies = {

Doesn't work.

Hmm same result as before?

Kind Regards,

Patrick.

On 24 May 2017, 20:21 +0100, Dorian Mattar [email protected], wrote:

.readBufferSize = 600, .bufferSizeInSeconds = 600, .secondsRequiredToStartPlaying = 700, .flushQueueOnSeek = YES, .enableVolumeMixer = YES, .equalizerBandFrequencies = {

Doesn't work.

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Yeah. No discernible difference in the gapless, but large files fail. And if it tries to play another large file right after the first failure, the next short song won't play unless you hit play.

Frustrating I know but maybe it's time to step through StreamingKit line by line and seeing if you can solve the issue yourself?

Yes, I'll look at it in a couple of weeks and update. Thanks for all your help, truly admirable!

Could you upload here a file you can't stream?

@iDevelopper https://cdn1.nextgenmusicapp.com/e4698754c70d66f4d2f0a53ebcaa5404.mp3

any update on this issue? I have the same one with url above, it does not play

Check the pull requests, there is a PR for fixing SSL handshakes which solved this issue for me.

Kind Regards,

Patrick Quinn.

On 21 Nov 2017, 20:19 +0000, Igor Bizi [email protected], wrote:

@iDevelopper https://cdn1.nextgenmusicapp.com/e4698754c70d66f4d2f0a53ebcaa5404.mp3 — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.

@patrickjquinn yeah, I installed that but this link still does not play

@doriansgithub any updates?

No, i’ve implemented an auto switch that uses the AVAudioPlayer once it gets that error. But of course, it will not stream or use the EQ unless you know how to tweak core audio. But it will play any song.

On Nov 21, 2017, at 12:53 PM, Igor Bizi [email protected] wrote:

@doriansgithub https://github.com/doriansgithub any updates?

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@doriansgithub crap, well, it's an option. But did you try some other libraries ? I guess it was something with the same features

I don’t think there is another streaming player with an EQ.

There is novocaine, but that’s not a streamer nor a gapless player.

For me gapless and eq are the most important features.

On Nov 21, 2017, at 12:58 PM, Igor Bizi [email protected] wrote:

@doriansgithub https://github.com/doriansgithub crap, well, it's an option. But did you try some other libraries ? I guess it was something with the same features

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Found another thing interesting:

After exporting my file using AVAssetExportSession, convert the exported file in a PCM format, and StreamingKit can play this new file whatever its length:

#pragma mark Core Audio convert to pcm

// Generic error handler from upcoming "Core Audio" book.
// If result is nonzero, prints error message and exits program.
static void CheckResult(OSStatus result, const char *operation)
{
    if (result == noErr) return;
    
    char errorString[20];
    // see if it appears to be a 4-char-code
    *(UInt32 *)(errorString + 1) = CFSwapInt32HostToBig(result);
    if (isprint(errorString[1]) && isprint(errorString[2]) && isprint(errorString[3]) && isprint(errorString[4])) {
        errorString[0] = errorString[5] = '\'';
        errorString[6] = '\0';
    } else
        // no, format it as an integer
        sprintf(errorString, "%d", (int)result);
    
    fprintf(stderr, "Error: %s (%s)\n", operation, errorString);
}

- (void)convertToPCM:(NSURL *)url { // The url of the exported file from AVAssetExportSession
    NSLog (@"convertToPCM");
    
    // Open ExtAudioFile
    NSLog (@"Opening %@", url);
    ExtAudioFileRef inputFile;
    CheckResult (ExtAudioFileOpenURL((__bridge CFURLRef)url, &inputFile),
                 "ExtAudioFileOpenURL failed");
    
#ifdef CA_CANONICAL_DEPRECATED
    const int bytesPerSample = sizeof(SInt16);
#elif __IPHONE_OS_VERSION_MIN_REQUIRED >= 80000
    const int bytesPerSample = sizeof(SInt16);
#else
    const int bytesPerSample = sizeof(AudioSampleType);
#endif
    
    AudioStreamBasicDescription canonicalAudioStreamBasicDescription = (AudioStreamBasicDescription)
    {
        .mSampleRate = 44100.00,
        .mFormatID = kAudioFormatLinearPCM,
        .mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked,
        .mFramesPerPacket = 1,
        .mChannelsPerFrame = 2,
        .mBytesPerFrame = bytesPerSample * 2 /*channelsPerFrame*/,
        .mBitsPerChannel = 8 * bytesPerSample,
        .mBytesPerPacket = (bytesPerSample * 2)
    };
    
    CheckResult (ExtAudioFileSetProperty(inputFile, kExtAudioFileProperty_ClientDataFormat,
                                         sizeof (canonicalAudioStreamBasicDescription), &canonicalAudioStreamBasicDescription),
                 "ExtAudioFileSetProperty failed");
    
    // Allocate a big buffer. size can be arbitrary for ExtAudioFile.
    // You have 64 KB to spare, right?
    UInt32 outputBufferSize = 0x10000;
    void *ioBuf = malloc (outputBufferSize);
    UInt32 sizePerPacket = canonicalAudioStreamBasicDescription.mBytesPerPacket;
    UInt32 packetsPerBuffer = outputBufferSize / sizePerPacket;
    
    // Setup output file
    NSString *outputPath = [[_appDelegate applicationDocumentsPath]stringByAppendingPathComponent: EXPORT_PCM_FILE];
    NSURL *outputURL = [NSURL fileURLWithPath:outputPath];
    NSLog (@"creating output file %@", outputURL);
    AudioFileID outputFile;
    CheckResult(AudioFileCreateWithURL((__bridge CFURLRef)outputURL,
                                       kAudioFileCAFType,
                                       &canonicalAudioStreamBasicDescription,
                                       kAudioFileFlags_EraseFile,
                                       &outputFile),
                "AudioFileCreateWithURL failed");
    
    // Start converting
    UInt32 outputFilePacketPosition = 0; //in bytes
    
    while (true) {
        // Wrap the destination buffer in an AudioBufferList
        AudioBufferList convertedData;
        convertedData.mNumberBuffers = 1;
        convertedData.mBuffers[0].mNumberChannels = canonicalAudioStreamBasicDescription.mChannelsPerFrame;
        convertedData.mBuffers[0].mDataByteSize = outputBufferSize;
        convertedData.mBuffers[0].mData = ioBuf;
        
        UInt32 frameCount = packetsPerBuffer;
        
        // Read from the extaudiofile
        CheckResult (ExtAudioFileRead(inputFile,
                                      &frameCount,
                                      &convertedData),
                     "Couldn't read from input file");
        
        if (frameCount == 0) {
            NSLog(@"done reading from file");
            break;
        }
        
        // Write the converted data to the output file
        CheckResult (AudioFileWritePackets(outputFile,
                                           false,
                                           frameCount,
                                           NULL,
                                           outputFilePacketPosition / canonicalAudioStreamBasicDescription.mBytesPerPacket,
                                           &frameCount,
                                           convertedData.mBuffers[0].mData),
                    "Couldn't write packets to file");
        
        NSLog(@"Converted %u bytes", (unsigned int)outputFilePacketPosition);
        
        // Advance the output file write location
        outputFilePacketPosition += (frameCount * canonicalAudioStreamBasicDescription.mBytesPerPacket);
    }
    
    // Clean up
    ExtAudioFileDispose(inputFile);
    AudioFileClose(outputFile);
    
    NSLog (@"Checking file at %@", outputPath);
    if ([[NSFileManager defaultManager] fileExistsAtPath:outputPath]) {
        NSError *fileManagerError = nil;
        unsigned long long fileSize = [[[NSFileManager defaultManager] attributesOfItemAtPath:outputPath
                                                                                        error:&fileManagerError]
                                       fileSize];
        NSLog(@"File Size: %@", [NSString stringWithFormat: @"%lld bytes", fileSize]);
    } else {
        NSLog (@"No file at %@", outputPath);
    }
}

I’ll be testing this! This would be fantastic!!

Sent from my iPhone

On Dec 2, 2017, at 7:03 AM, Patrick [email protected] wrote:

Found another thing interesting:

After exporting my file using AVAssetExportSession, convert the exported file in a PCM format, and StreamingKit can play this new file whatever its length:

#pragma mark Core Audio convert to pcm

// Generic error handler from upcoming "Core Audio" book. // If result is nonzero, prints error message and exits program. static void CheckResult(OSStatus result, const char *operation) { if (result == noErr) return;

char errorString[20];
// see if it appears to be a 4-char-code
*(UInt32 *)(errorString + 1) = CFSwapInt32HostToBig(result);
if (isprint(errorString[1]) && isprint(errorString[2]) && isprint(errorString[3]) && isprint(errorString[4])) {
    errorString[0] = errorString[5] = '\'';
    errorString[6] = '\0';
} else
    // no, format it as an integer
    sprintf(errorString, "%d", (int)result);

fprintf(stderr, "Error: %s (%s)\n", operation, errorString);

}

• (void)convertToPCM:(NSURL *)url { // The url of the exported file from AVAssetExportSession NSLog (@"convertToPCM");

  // Open ExtAudioFile NSLog (@"Opening %@", url); ExtAudioFileRef inputFile; CheckResult (ExtAudioFileOpenURL((__bridge CFURLRef)url, &inputFile), "ExtAudioFileOpenURL failed");

#ifdef CA_CANONICAL_DEPRECATED const int bytesPerSample = sizeof(SInt16); #elif __IPHONE_OS_VERSION_MIN_REQUIRED >= 80000 const int bytesPerSample = sizeof(SInt16); #else const int bytesPerSample = sizeof(AudioSampleType); #endif

AudioStreamBasicDescription canonicalAudioStreamBasicDescription = (AudioStreamBasicDescription)
{
    .mSampleRate = 44100.00,
    .mFormatID = kAudioFormatLinearPCM,
    .mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked,
    .mFramesPerPacket = 1,
    .mChannelsPerFrame = 2,
    .mBytesPerFrame = bytesPerSample * 2 /*channelsPerFrame*/,
    .mBitsPerChannel = 8 * bytesPerSample,
    .mBytesPerPacket = (bytesPerSample * 2)
};

CheckResult (ExtAudioFileSetProperty(inputFile, kExtAudioFileProperty_ClientDataFormat,
                                     sizeof (canonicalAudioStreamBasicDescription), &canonicalAudioStreamBasicDescription),
             "ExtAudioFileSetProperty failed");

// Allocate a big buffer. size can be arbitrary for ExtAudioFile.
// You have 64 KB to spare, right?
UInt32 outputBufferSize = 0x10000;
void *ioBuf = malloc (outputBufferSize);
UInt32 sizePerPacket = canonicalAudioStreamBasicDescription.mBytesPerPacket;
UInt32 packetsPerBuffer = outputBufferSize / sizePerPacket;

// Setup output file
NSString *outputPath = [[_appDelegate applicationDocumentsPath]stringByAppendingPathComponent: EXPORT_PCM_FILE];
NSURL *outputURL = [NSURL fileURLWithPath:outputPath];
NSLog (@"creating output file %@", outputURL);
AudioFileID outputFile;
CheckResult(AudioFileCreateWithURL((__bridge CFURLRef)outputURL,
                                   kAudioFileCAFType,
                                   &canonicalAudioStreamBasicDescription,
                                   kAudioFileFlags_EraseFile,
                                   &outputFile),
            "AudioFileCreateWithURL failed");

// Start converting
UInt32 outputFilePacketPosition = 0; //in bytes

while (true) {
    // Wrap the destination buffer in an AudioBufferList
    AudioBufferList convertedData;
    convertedData.mNumberBuffers = 1;
    convertedData.mBuffers[0].mNumberChannels = canonicalAudioStreamBasicDescription.mChannelsPerFrame;
    convertedData.mBuffers[0].mDataByteSize = outputBufferSize;
    convertedData.mBuffers[0].mData = ioBuf;
    
    UInt32 frameCount = packetsPerBuffer;
    
    // Read from the extaudiofile
    CheckResult (ExtAudioFileRead(inputFile,
                                  &frameCount,
                                  &convertedData),
                 "Couldn't read from input file");
    
    if (frameCount == 0) {
        NSLog(@"done reading from file");
        break;
    }
    
    // Write the converted data to the output file
    CheckResult (AudioFileWritePackets(outputFile,
                                       false,
                                       frameCount,
                                       NULL,
                                       outputFilePacketPosition / canonicalAudioStreamBasicDescription.mBytesPerPacket,
                                       &frameCount,
                                       convertedData.mBuffers[0].mData),
                "Couldn't write packets to file");
    
    NSLog(@"Converted %u bytes", (unsigned int)outputFilePacketPosition);
    
    // Advance the output file write location
    outputFilePacketPosition += (frameCount * canonicalAudioStreamBasicDescription.mBytesPerPacket);
}

// Clean up
ExtAudioFileDispose(inputFile);
AudioFileClose(outputFile);

NSLog (@"Checking file at %@", outputPath);
if ([[NSFileManager defaultManager] fileExistsAtPath:outputPath]) {
    NSError *fileManagerError = nil;
    unsigned long long fileSize = [[[NSFileManager defaultManager] attributesOfItemAtPath:outputPath
                                                                                    error:&fileManagerError]
                                   fileSize];
    NSLog(@"File Size: %@", [NSString stringWithFormat: @"%lld bytes", fileSize]);
} else {
    NSLog (@"No file at %@", outputPath);
}

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