Compiling FFmpeg source enabling the configurations sudo. I am trying to enable the hardware support for H264 encoding on raspberry pi 4B model. This leads to why configure is not supporting alsa, and looking up asoundlib.h goes here though you could also query the packaging db. so it is not just off by default.Ĭheck_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound configure -enable-indev=alsa -enable-outdev=alsa The output you want is "alsa" as a supported indev (and probably outdev.). It is normal to change system libraries and configuration options and rerun configure many times until you are happy with its results. The last line is a compaction of three steps, and the first one is significant as configure establishes what optional features the binary will support. Returning to this build/install method: $ cd /usr/src Process for resolving similar build dependencies: īefore attempting to configure and compile ffmpeg or anything where you need alsa support. I see that another question like this was posted. I have thought of piping arecord to ffmpeg like here, but I keep getting other errors and I feel this is going AROUND the problem rather than solving it.
I know the webcam's mic is working because I can record with arecord -D plughw:1,0 -f cd test.wav configure -arch=armel -target-os=linux -enable-gpl -enable-libx264 -enable-nonfreeīut I always get the same error, with varying results on the version number of ffpmeg.
configure & sudo make & sudo make install
Sudo ffmpeg -f alsa -i hw:1 -t 30 out.wavįfmpeg version N-86882-gc0220c7 Copyright (c) 2000-2017 the FFmpeg developersįrom a fresh install of Raspbian, I installed ffmpeg in the instructions I found : I have a Raspberry Pi 3 and I keep trying to install FFMPEG, but whenever I try to record audio through my USB webcam's mic with
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