On Mon, Feb 4, 2019, at 11:31 AM, Zoltan Kerenyi Nagy wrote: > Hi All, > > For some reason the CPU is insanely high, hitting almost all the time 100%, > I run ffmpeg on an ARM7 4 core embedded device. > > This is the setup, how I do it: > > ffserver -d -f /etc/ffserver.conf > ffmpeg -f alsa -i hw:0,0 http://localhost:4444/audio.ffm
You can see if libshine gives you better performance likely at the cost of quality per bit but it may not matter. You'll need to compile with "--enable-libshine" and encode with "-c:a libshine" unless it is the only MP3 encoder. > ffmpeg -f alsa -i hw:0,0-ar 8000 http://localhost:4444/audio.ffm Use the "-sample_rate" ALSA private option (before the input) if you want to change the sample rate, otherwise ffmpeg will use the default ALSA value of 48000 and resample to 8000. https://ffmpeg.org/ffmpeg-devices.html#alsa _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
