Input #0, image2, from '/usr/data/printer_data/timelapse/frames/frame%6d.jpg':
  Duration: 00:00:02.28, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> mjpeg (native))
Press [q] to stop, [?] for help
Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p'
[swscaler @ 0xd42450] deprecated pixel format used, make sure you did set range correctly
[mjpeg @ 0x974760] MJPEG CBR encoding works badly with frame multi-threading, consider using -threads 1, -thread_type slice or a constant quantizer.
Output #0, mp4, to '/usr/data/printer_data/timelapse/frames/timelapse_TEST.mp4':
  Metadata:
    encoder         : Lavf58.29.100
    Stream #0:0: Video: mjpeg (mp4v / 0x7634706D), yuvj420p(pc), 640x480 [SAR 4:3 DAR 16:9], q=2-31, 7000 kb/s, 15 fps, 15360 tbn, 15 tbc
    Metadata:
      encoder         : Lavc58.54.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/7000000 buffer size: 0 vbv_delay: -1
frame=    6 fps=0.0 q=1.6 size=       0kB time=00:00:00.26 bitrate=   1.3kbits/sframe=   12 fps= 10 q=1.6 size=     256kB time=00:00:00.66 bitrate=3145.9kbits/sframe=   18 fps= 10 q=1.6 size=     256kB time=00:00:01.06 bitrate=1966.3kbits/sframe=   23 fps= 10 q=1.6 size=     512kB time=00:00:01.40 bitrate=2996.0kbits/sframe=   28 fps= 10 q=1.6 size=     512kB time=00:00:01.73 bitrate=2419.9kbits/sframe=   33 fps=9.9 q=1.6 size=     768kB time=00:00:02.06 bitrate=3044.3kbits/sframe=   38 fps=9.9 q=1.6 size=    1024kB time=00:00:02.40 bitrate=3495.3kbits/sframe=   43 fps=9.9 q=1.6 size=    1024kB time=00:00:02.73 bitrate=3069.1kbits/sframe=   48 fps=9.9 q=1.6 size=    1280kB time=00:00:03.06 bitrate=3419.3kbits/sframe=   53 fps=9.8 q=1.6 size=    1280kB time=00:00:03.40 bitrate=3084.1kbits/sframe=   57 fps=9.7 q=1.6 size=    1536kB time=00:00:03.66 bitrate=3431.7kbits/sframe=   57 fps=9.6 q=1.6 Lsize=    1667kB time=00:00:03.73 bitrate=3658.5kbits/s speed=0.627x
video:1666kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.062064%