osx problem or wrong usage? about vtt-editor HOT 14 CLOSED

you'll have to play around with the sensitivity a bit. try -s=0.001

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And remove -b=true > that is actually a method used by mashup_folder.js to signal 'edl_dropboring.js` not to render the job.

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so i now saw that i already had 6 ffprobes running in background (while the script was already finished) and my load avg was up to 22. that was because i changed the log levels for ffprobe and made mplayer not-silent to dump the script output.

child_process has a max buffer size after which the process will be killed (SIGTERM i think). it is 200*1024. could this become a problem in some cases?

https://nodejs.org/api/child_process.html#child_process_child_process_exec_command_options_callback

also, i noticed that sometimes the analyze script seems to let ffprobe run for ages (looking good) and just steps through the next files in milliseconds.

guess it would really be nice to see the output of the script in those cases (although i never got anything when dumping the values from the return function of child_process and changing the log level for ffprobe).

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i'll try it in linux now. why exactly do i need to compile ffmpeg from the github source?

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The thing is that the scoring of different films is necessarily different.

e.g. A video of the sky won't offer up much on the way of change, whereas people dancing changes all the time.

Try this:

ffprobe -loglevel error -show_frames -of compact=p=0 -f lavfi "movie=bin/assets/SDV_0476.MP4,select=gt(scene\,0.001)"

it gives something like this:
media_type=video|stream_index=0|key_frame=1|pkt_pts=2997600|pkt_pts_time=49.960000|pkt_dts=2997600|pkt_dts_time=49.960000|best_effort_timestamp=2997600|best_effort_timestamp_time=49.960000|pkt_duration=1200|pkt_duration_time=0.020000|pkt_pos=10257616|pkt_size=451584|width=448|height=336|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0|tag:lavfi.scene_score=0.002825
This is the interesting bit: lavfi.scene_score=0.002825

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did that and it gives me (among a million other lines):

pkt_size=2073600|width=960|height=720|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0|tag:lavfi.scene_score=0.448768

that score looks high enough to go over my threshold. but there are way less fields in my output.

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oh copy & paste error i guess:

media_type=video|key_frame=1|pkt_pts=11219208|pkt_pts_time=467.467000|pkt_dts=11219208|pkt_dts_time=467.467000|best_effort_timestamp=11219208|best_effort_timestamp_time=467.467000|pkt_duration=1001|pkt_duration_time=0.041708|pkt_pos=132815963|pkt_size=2073600|width=960|height=720|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0|tag:lavfi.scene_score=0.004472

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i know - the output is sed'd to get the frame where the scenchange happened.

ffprobe -loglevel error -show_frames -of compact=p=0 -f lavfi "movie=bin/assets/SDV_0476.MP4,select=gt(scene\,0.001)" | sed -r 's/.*pkt_pts_time=([0-9.]{8,})\|.*/\1/'

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so actually it should be filling up the edl files (at least tmp), right? then the error is somewhere else, maybe while extracting the data from the stdout?

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FFMPEG BUILDER:

https://gist.github.com/denjello/7705937e693a4c49932a

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i'll set up a vm especially for that as a last resort. but actually, if the probe command outputs all those values with time and difference and whatnot, i don't see why this can't work on my mac.

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aha!

unknown60F81DB21D5E:~ anton$ ffprobe -loglevel error -show_frames -of compact=p=0 -f lavfi "movie=/Volumes/GHOSTSHARK/mash/Decoder.avi,select=gt(scene\,0.001)"  | sed -r 's/.*pkt_pts_time=([0-9.]{8,})\|.*/\1/'
sed: illegal option -- r
usage: sed script [-Ealn] [-i extension] [file ...]
       sed [-Ealn] [-i extension] [-e script] ... [-f script_file] ... [file ...]

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bsd-style sed has no -r option, but rather -E

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ok i now get edls with content. running it now to see if it works. btw, the -b=true gets added automatically. i did not pass it to the mashup script.

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