[FFmpeg-user] How to calculate the real (!) average variable video bitrate of a whole video with ffmpeg?

[Ben]

Assume I have a AVI, MP4 or MKV video which is encoded with a variable video bitrate.

Now I want to findout the average video bitrate across the WHOLE (!) video.

Now when I drag the video onto such tools like MediaInfo they show only the average video bitrate
of the first 5 or 20 seconds or so.

In rare cases they do not even show a value at all.

I could imagine that I can pass the video to ffmpeg and let it calculate the real variable video bitrate for the WHOLE video.

How does that work?

Ben
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[Carl Eugen Hoyos]

Post by Ben
Assume I have a AVI, MP4 or MKV video which is encoded with a
variable video bitrate.
Now I want to findout the average video bitrate across the WHOLE (!) video.

I may misunderstand but you could copy the video stream into a rawvideo file,
look at its size and divide it by the duration of the video.
If you use FFmpeg to copy the video stream, its console output will tell you
the bitrate, no need to divide:
$ ffmpeg -i input -vcodec copy -f rawvideo -y /dev/null

Carl Eugen
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[Peter van Houten]

Post by Ben
Assume I have a AVI, MP4 or MKV video which is encoded with a
variable video bitrate.
Now I want to findout the average video bitrate across the WHOLE (!) video.

Not ffmpeg but you mentioned mediainfo, so:

mediainfo --parsespeed=1 --output='Video;%BitRate% bps\n' <video file name>

Cheers
Peter
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[Dmitry Menshikov]

Or you may use this technique -
https://superuser.com/questions/1106343/determine-video-bitrate-using-ffmpeg

Post by Ben
Assume I have a AVI, MP4 or MKV video which is encoded with a variable video bitrate.
Now I want to findout the average video bitrate across the WHOLE (!) video.
Now when I drag the video onto such tools like MediaInfo they show only
the average video bitrate
of the first 5 or 20 seconds or so.
In rare cases they do not even show a value at all.
I could imagine that I can pass the video to ffmpeg and let it calculate
the real variable video bitrate for the WHOLE video.
How does that work?
Ben
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http://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email

--
Yours truly, Dmitry Menshikov
http://dmenshikov.com
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