[FFmpeg-user] encode to RAW video

Carl Zwanzig cpz at tuunq.com
Tue Nov 1 01:01:32 EET 2022

On 10/31/2022 6:23 AM, Naveen.B wrote:
> I observed some weird behaviour with fast and medium preset,

We've observed that you're -still- top-posting, please stop it.

> fast preset:
> *ffmpeg -pixel_format gray10le -s 1600x1300 -r 30 -i CapturedImage-%03d.raw
Specifies the input file(s) and their characteristics.

All that follows is filters and output specs.

> -c:v rawvideo -pixel_format yuv420p 
Use the video codec "rawvideo" with that pixel format for output, except 
AFAICT that there is no video encoder "rawvideo" (that should throw an 
error, which because of the missing command output, we don't see).

> -f rawvideo 
Force the output format to rawvideo ("Raw muxers accept a single stream 
matching the designated codec. They do not store timestamps or metadata. The 
recognized extension is the same as the muxer name unless indicated 
otherwise.") Don't use this unless there's a _really_ good reason.

> -c:v libx264 -preset fast -crf 18 
But now use the x264 codec!!! (into a "raw" file)

> test.raw*
but call the output file "test.raw" (not "test.mp4" or something like that).

What do you really want? Why this insistence on "raw" output, either as an 
"encoding" or output file?  That's making life difficult and likely 
obscuring other issues.

> command output:
(but the the _complete_ output!! Stop making us guess about things and 
you'll get better answers.)


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