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--- ffmpeg:conversions:convert_h264_to_av1:libaom:average_bitrate_abr [2023/06/15 11:44] – created peter
+++ ffmpeg:conversions:convert_h264_to_av1:libaom:average_bitrate_abr [2023/06/15 13:34] (current) – peter
@@ Line 1: / Line 1: @@
 ====== ffmpeg - Conversions - Convert H264 to AV1 - libaom - Average Bitrate (ABR) ======
+**libaom-av1** offers a simple "Average Bitrate" or "Target Bitrate" mode.
+  * In this mode, it will simply try to reach the specified bit rate on average, such as 2 MBit/s.
+<WRAP info>
+**NOTE:**  Use this option only if file size and encoding time are more important factors than quality alone.
+  * Otherwise, use one of the other rate control methods.
+</WRAP>
+----
+<code bash>
+time ffmpeg -i a.mp4 -c:v libaom-av1 -b:v 2M -f mp4 out.mp4
+</code>
+returns:
+<code bash>
+...
+real	106m2.063s
+user	601m51.372s
+sys	0m34.574s
+</code>
+<WRAP info>
+**NOTE:**
+  * Input test size:  75.5M
+  * Output test size:  4.9M
+</WRAP>
+<WRAP info>
+**NOTE:**  The bitrate limit by the **-b:v** where the bitrate MUST be non-zero.
+</WRAP>