On 14/05/2020, Ram Shaffir <r...@ram.sh> wrote: > My "success" wasn't as good as I thought when capturing the video feed for > over 15 seconds or so I get an error and the although the output video size > keeps on growing there are no new frames only audio: > > ffmpeg -y -f alsa -thread_queue_size 15000 -ac 2 -itsoffset -0.5 -i hw:1,0 > -f v4l2 -thread_queue_size 15000 -i /dev/video0 -acodec ac3 -ab 51k -s > 896x504 -r 30 -vcodec libx264 -b:v 2100K -pix_fmt yuv422p -f mp4 > /usr/ramDisk/libx264.mp4 > Input #1, video4linux2,v4l2, from '/dev/video0': > Duration: N/A, start: 53746.367981, bitrate: 1988671 kb/s > Stream #1:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, > 1988671 kb/s, 59.94 fps, 59.94 tbr, 1000k tbn, 1000k tbc
You are trying to convert a RAW 1080p @ 60fps (1988671 kb/s) stream to h.264 504p @ 30fps (2100Kb/s), the raspberry PI *DOES NOT* have the CPU power and the USB bus cant handle 248.583875 Mbytes/s _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
