On Tue, Feb 05, 2019 at 21:05:33 +0100, Zoltan Kerenyi Nagy wrote: > I see, however do you think it is normal that recording to 300 sec wav > segments digests 4% CPU, in contrast with streaming with mp3 conversion and > recording to wav at the same time digest 90-100% CPU on an ARM7 device > which has 4 cores an 625 Mhz CPU and 256MB ram?
Did you read Carl Eugen's hint that there may be some format conversion involved, which you can avoid if you request the correct format from ALSA (IIUC)? https://ffmpeg.org/pipermail/ffmpeg-user/2019-February/043140.html Aprart from that, encoding to WAV (i.e. PCM) is extremely easy on the CPU, unlike encoding to "more" compressed formats. Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
