我如何进行原始发送和原始接收？这不起作用，我无法播放我发送的内容:
Send: $ gst-launch -v autoaudiosrc ! udpsink host=127.0.0.1 auto-multicast=true port=4444
Recv/play:
[root@example ~]# gst-launch udpsrc multicast-group=127.0.0.1 port=4444 ! autoaudiosink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstAutoAudioSink:autoaudiosink0/GstPulseSink:autoaudiosink0-actual-sink-pulse: The stream is in the wrong format.
Additional debug info:
gstbaseaudiosink.c(866): gst_base_audio_sink_preroll (): /GstPipeline:pipeline0/GstAutoAudioSink:autoaudiosink0/GstPulseSink:autoaudiosink0-actual-sink-pulse:
sink not negotiated.
Execution ended after 16110169 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
[root@example ~]#
最佳答案
您需要为源指定功能。这实际上是 ERROR: from element/GstPipeline:pipeline0/GstAudioConvert:audioconvert0: not negotiated 的意思。
(在 gst-launch 上使用 -v 标志以查看有关错误的更多详细信息)。
所以，解决方案是:
$ gst-launch -v udpsrc multicast-group=127.0.0.1 port=4444 \
! audio/x-raw-int, endianness=1234, signed=true, width=16, depth=16, rate=44100, channels=2 \
! autoaudiosink
实际上，我只是从发送 gst-launch 的详细输出中复制了功能。
关于c - 如何在基本原始格式中播放端口音频，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/4410516/