Streaming WebM
Posted: 15 Jul 2014 22:04
I'm attempting to stream VP8 and Opus muxed into WebM using http. I'd like to be able to also use VBR for VP8 and Opus, but wasn't able to find how to do this in the Wiki. Thanks in advance!
FFMPEG with compiled with libvpx and I think opus
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vlc $1 -I dummy --sout-keep \
vlc://quit --sout='#transcode{width=480,fps=15,vcodec=VP80,acodec=opus,channels=1}:std{access=http,mux=ffmpeg{mux=webm},dst=127.0.0.1:8000}'
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VLC media player 2.1.4 Rincewind (revision 2.1.4-0-g2a072be)
Warning: option --sout-ffmpeg-strict no longer exists.
[0x100502cd0] main interface error: no suitable interface module
[0x10023cf00] dummy interface: using the dummy interface module...
[0x10040b390] access_output_http access out: Consider passing --http-host=IP on the command line instead.
[0x10040c2d0] stream_out_transcode stream out error: cannot find audio encoder (module:any fourcc:opus). Take a look few lines earlier to see possible reason.
[0x10040c2d0] stream_out_transcode stream out error: cannot create audio chain
[0x1020034b0] main decoder error: cannot create packetizer output (mp4a)
[libvpx @ 0x10201bc00] v1.1.0
[libvpx @ 0x10201bc00] Neither bitrate nor constrained quality specified, using default bitrate of 256kbit/sec
[0x100415630] vda generic error: Failed to create decoder: -12473
[0x1028048b0] avcodec generic error: acceleration setup failure
[0x1028048b0] avcodec generic error: acceleration not available
[0x10036de80] vda generic error: Failed to create decoder: -12473
[0x1028048b0] avcodec generic error: acceleration setup failure
[0x1028048b0] avcodec generic error: acceleration not available
[libvpx @ 0x101014c00] v1.1.0
[libvpx @ 0x101014c00] Neither bitrate nor constrained quality specified, using default bitrate of 256kbit/sec
[webm @ 0x102006000] Codec for stream 0 does not use global headers but container format requires global headersCode: Select all
ffmpeg -formats | grep opus
ffmpeg version 2.2.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Jul 15 2014 12:22:11 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-libspeex --enable-libfdk-aac --enable-openssl --enable-libopus --enable-libcaca --enable-libx265
libavutil 52. 66.100 / 52. 66.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 2.100 / 4. 2.100
libavresample 1. 2. 0 / 1. 2. 0
libswscale 2. 5.102 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
E opus Opus