linux - Gstreamer-Opus Caps分析错误，有人知道如何解决？

我的语法分析有什么问题？它无法正确解析opus caps（但不是speex）并导致它无法正常工作任何人都知道，在哪里我必须添加更多的\或/或“或”符号才能使其有效大写？

$ gst-launch-0.10 -v gstrtpbin name=rtpbin latency=100 udpsrc caps="application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)X-GST-OPUS-DRAFT-SPITTKA-00, caps=(string)\"audio/x-opus\\,\\ multistream\\=\\(boolean\\)false\\,\\ streamheader\\=\\(buffer\\)\\<\\ 4f707573486561640101000080bb0000000000\\,\\ 4f707573546167731e000000456e636f6465642077697468204753747265616d6572204f707573656e63010000001a0000004445534352495054494f4e3d617564696f74657374207761766501\\ \\>\", ssrc=(uint)3090172512, payload=(int)96, clock-base=(uint)4268257583, seqnum-base=(uint)10001" port=5002 ! rtpbin.recv_rtp_sink_1 rtpbin. ! rtpopusdepay ! opusdec ! audioconvert ! audioresample ! alsasink device=2 name=uudpsink0 udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1 rtpbin.send_rtcp_src_1 ! udpsink port=5007 host=%s sync=false async=false

(gst-plugin-scanner:25672): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstsimsyn.so': /usr/lib/gstreamer-0.10/libgstsimsyn.so: undefined symbol: gst_controller_sync_values

(gst-plugin-scanner:25672): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstaudiodelay.so': /usr/lib/gstreamer-0.10/libgstaudiodelay.so: undefined symbol: gst_base_transform_set_gap_aware

(gst-plugin-scanner:25672): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstbml.so': /usr/lib/gstreamer-0.10/libgstbml.so: undefined symbol: gst_base_src_set_format
WARNING: erroneous pipeline: could not set property "caps" in element "udpsrc0" to "application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)X-GST-OPUS-DRAFT-SPITTKA-00, caps=(string)"audio/x-opus\,\\ multistream\=\(boolean\)false\,\\ streamheader\=\(buffer\)\<\\ 4f707573486561640101000080bb0000000000\,\\ 4f707573546167731e000000456e636f6465642077697468204753747265616d6572204f707573656e63010000001a0000004445534352495054494f4e3d617564696f74657374207761766501\\ \>", ssrc=(uint)3090172512, payload=(int)96, clock-base=(uint)4268257583, seqnum-base=(uint)10001"

最佳答案

我认为不需要特别的逃跑。如果您的管道是正确的，那么这应该可以工作：

gst-launch-0.10 -v gstrtpbin name=rtpbin latency=100 udpsrc caps="application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)X-GST-OPUS-DRAFT-SPITTKA-00, caps=(string)audio/x-opus, multistream=(boolean)false, streamheader=(buffer)<4f707573486561640101000080bb0000000000,4f707573546167731e000000456e636f6465642077697468204753747265616d6572204f707573656e63010000001a0000004445534352495054494f4e3d617564696f74657374207761766501>, ssrc=(uint)3090172512, payload=(int)96, clock-base=(uint)4268257583, seqnum-base=(uint)10001" port=5002 ! rtpbin.recv_rtp_sink_1 rtpbin. ! rtpopusdepay ! opusdec ! audioconvert ! audioresample ! alsasink device=2 name=uudpsink0 udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1 rtpbin.send_rtcp_src_1 ! udpsink port=5007 host=%s sync=false async=false

如果需要处理bash可能要解释的特殊字符，请将caps="..."更改为caps='...'。
下面是一个笨拙的python版本：

import subprocess

args=[  'gst-launch-0.10',
        '-v',
        'gstrtpbin',
        'name=rtpbin',
        'latency=100',
        'udpsrc',
        'caps="application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)X-GST-OPUS-DRAFT-SPITTKA-00, caps=(string)audio/x-opus, multistream=(boolean)false, streamheader=(buffer)<4f707573486561640101000080bb0000000000,4f707573546167731e000000456e636f6465642077697468204753747265616d6572204f707573656e63010000001a0000004445534352495054494f4e3d617564696f74657374207761766501>, ssrc=(uint)3090172512, payload=(int)96, clock-base=(uint)4268257583, seqnum-base=(uint)10001"',
        'port=5002',
        '!',
        'rtpbin.recv_rtp_sink_1',
        'rtpbin.',
        '!',
        'rtpopusdepay',
        '!',
        'opusdec',
        '!',
        'audioconvert',
        '!',
        'audioresample',
        '!',
        'alsasink',
        'device=2',
        'name=uudpsink0',
        'udpsrc',
        'port=5003',
        '!',
        'rtpbin.recv_rtcp_sink_1',
        'rtpbin.send_rtcp_src_1',
        '!',
        'udpsink',
        'port=5007',
        'host=%s',
        'sync=false',
        'async=false',

        ]

child = subprocess.Popen(args, stdout=subprocess.PIPE)
streamdata = child.communicate()[0] # streamdata will contain output of gst-launch-0.10
rc = child.returncode # rc will contain the returncode of gst-launch-0.10

print streamdata
print "\nprocess returned %d" %(rc)

我认为您最好为gstreamer找到一个好的python模块，而不是使用subprocess或类似的方法。
希望这有帮助！

关于linux - Gstreamer-Opus Caps分析错误，有人知道如何解决？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/23356609/