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--- ffmpeg:video:speed_up [2025/01/12 13:38] – created peter
+++ ffmpeg:video:speed_up [2025/05/27 09:38] (current) – peter
@@ Line 12: / Line 12: @@
 </WRAP>
+----
+===== Use a complex filter to speed up video =====
+<code bash>
+ffmpeg -i input.mkv -filter_complex "[0:v]setpts=<1/x>*PTS[v];[0:a]atempo=<x>[a]" -map "[v]" -map "[a]" output.mkv
+</code>
+<WRAP info>
+**NOTE:**  w/ audio, where <x> is the speedup ratio.
+</WRAP>
+----
+For example, to speed up the video by 1.5 times the original speed, use:
+<code bash>
+ffmpeg -i input.mkv -filter_complex "[0:v]setpts=0.6667*PTS[v];[0:a]atempo=1.5[a]" -map "[v]" -map "[a]" output.mkv
+</code>
+----