2018-02-18 22:56 GMT+01:00 Jonathan Baecker <[email protected]>: > when I use pipe to ffmpeg in combination with *filter_complex > overlay, *I always get the message: > > Thread message queue blocking; consider raising the > thread_queue_size option (current value: 256)
What exactly is the problem when FFmpeg shows this message? I suspect your command line will always fill the buffer which hopefully doesn't matter for you (because it isn't entirely clear why you are using the pipe) but does typically matter. [...] > ffmpeg -v error -hide_banner -nostats -i "input.mp4" -s 1024x576 > -pix_fmt yuv420p -c:v rawvideo -c:a pcm_s16le -f avi - | ffmpeg > -thread_queue_size 256 -i pipe:0 -i "logo.png" -filter_complex > overlay -pix_fmt yuv420p -c:v libx264 -crf 26 -preset ultrafast > -c:a aac -f flv -y /dev/null Please understand that reports with "-hide_banner" are useless unless you want to report an issue with this option. Carl Eugen _______________________________________________ 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".
