Issue that does not publish sample buffers when used only audio

[Jellabean07]

Describe the bug

• If audio is used only, captureOutput cannot send a sample buffer because AVMixer's useSampleBuffer function always returns false.
• The reason is that MediaSync is always fixed with video when only attachAudio is called
• Therefore, exception handling is required for audio only

func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
        
        guard mixer?.useSampleBuffer(sampleBuffer: sampleBuffer, mediaType: AVMediaType.audio) == true else {
            return
        }
        appendSampleBuffer(sampleBuffer)
    }

func useSampleBuffer(sampleBuffer: CMSampleBuffer, mediaType: AVMediaType) -> Bool {
        switch mediaSync {
        case .video:
            if mediaType == .audio {
                return !videoTimeStamp.seconds.isZero && videoTimeStamp.seconds <= sampleBuffer.presentationTimeStamp.seconds
            }
            if videoTimeStamp == CMTime.zero {
                videoTimeStamp = sampleBuffer.presentationTimeStamp
            }
            return true
        case .audio:
            if mediaType == .video {
                return !audioTimeStamp.seconds.isZero && audioTimeStamp.seconds <= sampleBuffer.presentationTimeStamp.seconds
            }
            if audioTimeStamp == CMTime.zero {
                audioTimeStamp = sampleBuffer.presentationTimeStamp
            }
            return true
        default:
            return true
        }
    }

To Reproduce

Use only the attachAudio function and do not use attachVideo.

Expected behavior

The sample buffer should be published when using audio only

Version

1.2.6

Smartphone info.

No response

Additional context

No response

Screenshots

No response

Relevant log output

No response

[shogo4405]

Thank you for feedback. I fixed it cd57a82.

[Jellabean07]

@shogo4405 Thank you for fixed it
I'll look forward to the version being updated

[shogo4405]

closed as fixed and released 1.2.7