Question PCM Buffersize in SrsEncoder.java

[JDBae]

in the SrsEncoder.java, I like to know the reason ..

• add 8191 and divide by 8192
  I send RTMP stream to AWS Medialive then audio get popcorn sound.
  If popcorn sound is from latetenancy, then I would like to adjust more precisely....

private int getPcmBufferSize() {
int pcmBufSize = AudioRecord.getMinBufferSize(ASAMPLERATE, AudioFormat.CHANNEL_IN_STEREO,
AudioFormat.ENCODING_PCM_16BIT) + 8191;
return pcmBufSize - (pcmBufSize % 8192);

[begeekmyfriend]

You might use ffmpeg to stream your test file to the AWS with authenticated URL to verify the rightness of codec format.

[JDBae]

Using your source, most of thing i used it as you make.
In the scenario, I hear the tick noise and popcorn sound.

• Play music in phone
• get the music sound using mic
• get video from camera
• and streaming to AWS medialive

Would you guide me on this ?
It is happen in android.

[begeekmyfriend]

Would you please changing a mobile phone? Or did you run on other Android devices? Besides you can use recording function to hear whether there is tick noise.

[JDBae]

I tested it LG phone and Samsung and others.. it is happened ....
Actually I can hear popcorn sound and tick noise.
During test I did not touch phone at all.
really I don't know... how it can be solved....
Yes, I test with wowza , then it is ok
But AWS medialive, it have that sound.
Another facts to be consider is IOS is fine with AWS medialive....

[begeekmyfriend]

Maybe there should be some configuration mismatch between AWS and yasea. Could this #554 (comment) help you?