From 9e685b3a87db5658bb5325f5c67db2838f81f76b Mon Sep 17 00:00:00 2001 From: Marcin Chrzanowski Date: Sun, 31 May 2020 14:16:49 +0200 Subject: Add ffmpeg filtergraphs --- ffmpeg.md | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/ffmpeg.md b/ffmpeg.md index 663471e..31a69bb 100644 --- a/ffmpeg.md +++ b/ffmpeg.md @@ -36,3 +36,15 @@ For the transpose parameter you can pass: ## Record sound ffmpeg -f alsa -i default out.flac + +## Fitlering + +### Filtergraph + +* A filtergraph is a `;`-separated list of filterchains. +* A filterchain is a `,`-separated list of filters. +* A filter is + + [in1] ... [ink] filter_name=option1=val1:...:optionn=valn [out1] ... [outm] + +* Use `-filter_complex` if more than one input or output stream. -- cgit v1.2.3