如何修改以下命令行? [英] how to modify the following command line?

问题描述

我有以下gstreamer命令行:

I have the following gstreamer Command-line :

gst-launch alsasrc ! mulawenc ! rtppcmupay ! udpsink host= 127.0.0.1 port=5555

它记录单声道语音，如果我在5555端口上监听(使用了回显IP)，我可以听到它.但是我需要传送立体声. 我还使用以下命令尝试了麦克风的立体声录音功能:

It records Mono Voice and i can hear it ,if i listen on 5555 port ( echo IP was used). But i need to transmit Stereo . I have also tried my Microphone for stereo-recording Capability using the following command:

arecord -vv -fdat voiceFile.wav 

，并且有效. 有人知道如何在gstreamer命令中指定 stereo 吗?

and it works. Does anyone know how to specify stereo in the gstreamer command?

推荐答案

问题是rtppcmupay不支持立体声:

$ gst-inspect rtppcmupay
...
    Capabilities:
      audio/x-mulaw
               channels: 1
                   rate: 8000
....

您可以尝试其他编解码器(例如vorbis):

You can try some other codec (e.g. vorbis):

$ gst-launch alsasrc \
  ! 'audio/x-raw-int,channels=2' \
  ! audioconvert \
  ! vorbisenc \
  ! rtpvorbispay \
  ! udpsink host=127.0.0.1 port=5555

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