[FFmpeg-devel] The quantization parameter QP in FFmpeg-Libavformat-VLC
moadtoufik at yahoo.fr
Sat Jul 28 18:02:35 CEST 2012
I discovered that VLC decode most of the codecs using libavformat .
I would like to evaluate the quantization parameter QP priodically. For example:
I start reading video "toto.flv" using VLC, and at the same time, we'll show on the console the value of quantization paramaitre QP.
I intend modify the source code of this library (libavformat) to view the quantization parameter. I did a keyword search "qp" in the source code of Libavformat. I found the word qp in two place: in the file, "mmf.c" and "electronicarts.c", but this word is used in comments!!!
Please, do you have any ideas on how I could extract this parameter (quantization parameter) in FFmpeg?
Frankly, it's starting to stress me as it's been a while since I'm on it.
Thank you in advance for your answers.
More information about the ffmpeg-devel