wsmaster,
It sounds to me like a problem with the G.711 implementation. I’ve seen such behavior before… some work, some don’t. Try adjusting the audio settings if possible.
You can post the output of ffprobe, and/or describe your stream and device/model in detail so we can identify if a certain implementation exhibits this behavior. Is it a-law or mu-law? G.711.0 or G.711.1? Sample rate and bitrate?
Alternatively, you can transcode the audio portion before the stream gets to Wowza. Some examples here: Frequently requested FFMPEG command examples for Wowza
Thanks for reply.
Ip camera is Samsung SNB-5000. I have live streaming from Wowza Media Server 3.5.
This is ffprobe output from my ip camera stream:
[NULL @ 0xcf76c0]missing picture in access unit
[rtsp @ 0xcf44e0]Estimating duration from bitrate, this may be inaccurate
Input #0, rtsp, from 'rtsp://ipaddress:554/profile/media.smp':
Metadata:
title : Media Presentation
comment : samsung
Duration: N/A, bitrate: N/A
Stream #0.0: Video: h264, yuv420p, 640x360, 90k tbr, 90k tbn, 90k tbc
Stream #0.1: Audio: pcm_mulaw, 8000 Hz, 2 channels, s16, 128 kb/s
This is ffprobe output from my Wowza encoded stream:
[NULL @ 0x9820ed0]missing picture in access unit
[rtsp @ 0x981d430]Could not find codec parameters (Audio: aac, mono, s16)
[rtsp @ 0x981d430]Estimating duration from bitrate, this may be inaccurate
Input #0, rtsp, from 'rtsp://ipaddress:1935/live/my.stream_high':
Metadata:
title : my.stream_high
Duration: N/A, bitrate: N/A
Stream #0.0: Audio: aac, mono, s16
Stream #0.1: Video: h264, yuv420p, 640x480, 90k tbr, 90k tbn, 90k tbc
Video dont have lags and have good framerate when audio is turn off, when I add tags to section, my video have lags and skipframe. But audio is ok, good and clear, problem only with video when I turn on audio. May be video and audio live sync and I have skipframe, dont know… Please help me.
CPU load when transcoder is working - 40-50%.
Thanks.