Thanks for you input. This is giving me a better sense of direction.
On 2/19/12 4:05 PM, Nicolas George wrote:
Le primidi 1er ventôse, an CCXX, Deron a écrit :
So, I presume then that avformat_open_input (or?) does the interpreting
in the background and amends the stream list etc so that packet info is
basically the output from the filtergraph? How would I implement that in
some other app? Pass "lavfi" to avformat_open_input as the input format?
Exactly, and the filtergraph as the file name. But if you write your own
application, you can also use audio filters directly.
Ok, let me understand this part first before I dive into a libavdevice.
If I want to reduce the volume by 10db, what would be the command line
be in ffmpeg (using libavi of course)?
ffmpeg -f libavi -i "amovie=movie.avi, volume=-10db"
??
How would I reproduce that with the audio filters directly? Any example
out there?
I think it will take me much time to get a libavdevice working from the
sounds of it, but I'm willing to try.
Deron
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