From 528ba391354afceae05fb6993e6b76516393ccb9 Mon Sep 17 00:00:00 2001 From: kfrn Date: Thu, 4 Jun 2020 18:32:45 +1200 Subject: [PATCH] Recipe: transcode to H.264 - add note about >1 audio (etc) tracks Addresses https://github.com/amiaopensource/ffmprovisr/issues/383 --- index.html | 1 + 1 file changed, 1 insertion(+) diff --git a/index.html b/index.html index 7efcf3e..0a37a99 100644 --- a/index.html +++ b/index.html @@ -331,6 +331,7 @@
-crf 18
Specifying a lower CRF will make a larger file with better visual quality. For H.264 files being encoded with a 4:2:0 chroma subsampling scheme (i.e., using -pix_fmt yuv420p), the scale ranges between 0-51 for 8-bit content, with 0 being lossless and 51 the worst possible quality.
If no crf is specified, libx264 will use a default value of 23. 18 is often considered a “visually lossless” compression.
+

By default, this recipe will include one track of each type (e.g. audio, video) in the output file. If you wish to include more tracks, consult the entry on stream mapping.

For more information, see the FFmpeg and H.264 Encoding Guide on the FFmpeg wiki.