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authorMarcin Chrzanowski <marcin.j.chrzanowski@gmail.com>2020-05-31 14:16:49 +0200
committerMarcin Chrzanowski <marcin.j.chrzanowski@gmail.com>2020-05-31 14:16:49 +0200
commit9e685b3a87db5658bb5325f5c67db2838f81f76b (patch)
tree7c8ea78c9a457a00b093b582daf75752d2df5d2a
parente1979c646ab0a11a06020b6126db926397d8bffd (diff)
Add ffmpeg filtergraphs
-rw-r--r--ffmpeg.md12
1 files changed, 12 insertions, 0 deletions
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.