Getting error: Unknown encoder 'libvo_aacenc'
Your ffmpeg was probably not configured with --enable-libvo-aacenc
. However there are other, higher quality AAC encoders that can be used with ffmpeg. ffmpeg -codecs
will list all encoders that have been configured for each supported codec; look for the "aac" line and the encoders listed on that line. If you don't have any other AAC encoder you can always use the experimental AAC encoder that is built-in to ffmpeg (-strict experimental -c:a aac
), or build your own ffmpeg with your favorite AAC encoder. For guidance on selecting an AAC encoder, see the ffmpeg AAC Encoding Guide.
Update: As of FFmpeg 3.0 (Feb 2016), libvo-aac has been removed from FFmpeg because the built-in AAC encoder has superior quality and is no longer experimental. It is suggested to use the built-in encoder (-c:a aac
) or libfdk-aac (-c:a libfdk_aac
) instead.
slhck
Updated on September 18, 2022Comments
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slhck over 1 year
I am new to
ffmpeg
, just trying to build an SDP file for streaming. I'm facing an error when I run the commandffmpeg -re -i "sample.mp4" -f rtp rtp://127.0.0.1:10000 -flags +global_header -c:a libvo_aacenc -vn -map 0:1 -f rtp rtp://127.0.0.1:10002 > 10000.sdp
The error is:
Unknown encoder 'libvo_aacenc'
How do I resolve this?
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Elisa Cha Cha almost 11 yearsYou need to include the complete ffmpeg console output that shows up after you enter your ffmpeg command.
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Elisa Cha Cha about 8 yearslibfaac is next in line for removal.