我需要使用下一个编解码器 vp8 ， opus 获取 rtp stream 。 我从相机（h264，aac）获得一个流，然后我发送到ffmpeg，然后我将它发送到ffserver，从那里我想收到一个格式为rtp的流。 没有音频的视频（VP8）我成功获得，但带有音频的流视频（任何编解码器（aac，vorbis，opus））都不起作用。
ffmpeg命令：
./ffmpeg -thread_queue_size 512 -rtsp_transport tcp -i rtsp://ip:port/stream -analyzeduration 0 -threads 2 http://localhost:4000/feed1.ffm
ffserver config：
HTTPPort 4000
RTSPPort 1235
RTSPBindAddress 0.0.0.0
HTTPBindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 10000
<Feed feed1.ffm>
File /tmp/feed1.ffm
FileMaxSize 1G
ACL allow 127.0.0.1
ACL allow localhost
</Feed>
<Stream test1.sdp>
Feed feed1.ffm
Format rtp
# Video settings
VideoCodec libvpx
VideoSize 720x576
VideoFrameRate 25
VideoBitRate 512
AVOptionVideo maxrate 2000
VideoQMin 4
VideoQMax 50
VideoBufferSize 4000
AVOptionVideo cpu-used 3
AVOptionVideo crf 33
AVOptionVideo quality realtime
AVOptionVideo flags +global_header
#PreRoll 0
#StartSendOnKey
# Audio settings
#AudioCodec aac
#AudioCodec libopus
#Strict -2
AudioBitRate 128
AudioChannels 2
AudioSampleRate 48k
AVOptionAudio flags +global_header
ACL allow localhost
</Stream>
没有视频（只有音频） - 没有工作
HTTPPort 4000
RTSPPort 1235
RTSPBindAddress 0.0.0.0
HTTPBindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 10000
<Feed feed1.ffm>
File /tmp/feed1.ffm
FileMaxSize 1G
ACL allow 127.0.0.1
ACL allow localhost
</Feed>
<Stream test1.sdp>
Feed feed1.ffm
Format rtp
# Video settings
NoVideo
# Audio settings
#AudioCodec aac
#AudioCodec libopus
#Strict -2
AudioBitRate 128
AudioChannels 2
AudioSampleRate 48k
AVOptionAudio flags +global_header
ACL allow localhost
</Stream>
我尝试通过vlc连接到我的流，但我看到vlc中的错误（如果是音频libopus）core error: could not identify codec，如果是音频编解码器（例如aac） - live555 error: no data received in 10s, aborting。
ffserver info build：
ffserver version N-86676-g45dbb40cd1-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.1 (Debian 5.4.1-11) 20170519
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
libavutil 55. 67.100 / 55. 67.100
libavcodec 57.100.102 / 57.100.102
libavformat 57. 75.100 / 57. 75.100
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 94.100 / 6. 94.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
ffmpeg info build：
ffmpeg version N-86676-g45dbb40cd1-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.1 (Debian 5.4.1-11) 20170519
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
libavutil 55. 67.100 / 55. 67.100
libavcodec 57.100.102 / 57.100.102
libavformat 57. 75.100 / 57. 75.100
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 94.100 / 6. 94.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
有什么问题？ 任何想法？