Bitrate, framerate and resolution set independently?

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amartinovic
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Bitrate, framerate and resolution set independently?

Postby amartinovic » 13 Dec 2013 15:23

Hello everyone, this is my first post on the forum. Just want to congratulate you all on developing and maintaining a great app. I makes me really happy to see an active ongoing open source community :)

I'm experimenting with video transcoding, and found myself in a dilemma regarding the setting for bitrate, frame rate and resolution. Let me first give you my definition of these terms.

resolution - number of pixels per frame

frame rate - number of frames per second

bitrate - number of bits per second required for playing the video. It is defined as resolution * frame rate * bits per pixel.


The window in VLC that confuses me is Play->Stream->Next->Transcoding Profile (edit) -> Video codec. It allows me to specify all the three values independently.

Why is it sensible to set the resolution to 1000x1000, framerate to 100 and bitrate to just 1kb/s. Is this just some missing field validation in VLC, or am I missing something with the basic concepts?

Jean-Baptiste Kempf
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Re: Bitrate, framerate and resolution set independently?

Postby Jean-Baptiste Kempf » 14 Dec 2013 18:06

Because validation is way too complex to do.
Jean-Baptiste Kempf
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