Changes between Version 6 and Version 7 of Software/encoding

Timestamp:

03/22/18 13:36:26 (6 years ago)

Author:

Herwig Zilken

Comment:

--

Software/encoding

@@ -125 +125 @@
 (https://www.virag.si/2012/01/web-video-encoding-tutorial-with-ffmpeg-0-9)\\
 
-Here is how to generate a mp4 movie from a number of .png images. Each image is shown 2 seconds (-framerate 1/2). The resulting movie has 25 fps (-r 25) and 4K resolution (-s 3840x2160). The filenames of the images are read from the filesystem (-pattern_type glob  -i '*.png').
+Here is how to generate a mp4 movie from a number of .png images. Each image is shown 2 seconds (-framerate 1/2). The resulting movie has 25 fps (-r 25) and 4K resolution (-s 3840x2160). The quality is set to 25 (-crf 25). Lower means better quality, 15-25 is usually good. The filenames of the images are read from the filesystem (-pattern_type glob  -i '*.png').
 {{{#!ShellExample
 ffmpeg -framerate 1/2 -pattern_type glob  -i '*.png' -vcodec libx264 -crf 25 -s 3840x2160 -r 25 foo.mp4