[FFmpeg-user] Submitting a Feature Request

[Chris]

-----Original Message-----
From: Carl Eugen Hoyos <ceffmpeg at gmail.com>
To: FFmpeg user questions <ffmpeg-user at ffmpeg.org>
Sent: Tue, Jan 21, 2020 1:17 pm
Subject: Re: [FFmpeg-user] Submitting a Feature Request

Am Di., 21. Jan. 2020 um 21:45 Uhr schrieb Chris via ffmpeg-user
<ffmpeg-user at ffmpeg.org>:

> My last message contained a comment line which explains why there are two command lines:


> // Open an input pipe from ffmpeg and an output pipe to a second instance of ffmpeg


> One is an input pipe for reading video frames; the other is an output pipe for writing video frames.



> The output pipe is the one modifying the video levels I have written in the C program.



> out_range=full causes ffmpeg to force video levels to 0 - 255.


> out_range=tv causes ffmpeg to force video levels to 16 - 235.


> But you are not specifying either of these, are you?


No I am not, as you can see from the lines I copied.
> Since there are two commands:
> Which one is changing the video level? Is the issue you see (that the levels
> are changed) also reproducible if only one of the commands is used?

The second command is changing the video levels as I explained in my previous post, viz.:

> The output pipe is the one modifying the video levels I have written in the C program.