From: Timothy Gu <[email protected]>
---
doc/encoders.texi | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/doc/encoders.texi b/doc/encoders.texi
index f214964..eccc9c6 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -599,6 +599,43 @@ default value is 0 (disabled).
@end table
+@section libopencore-amrnb
+
+OpenCORE Adaptive Multi-Rate Narrowband encoder.
+
+Requires the presence of the libopencore-amrnb headers and library during
+configuration. You need to explicitly configure the build with
+@code{--enable-libopencore-amrnb --enable-version3}.
+
+This is a mono-only encoder. Officially it only supports 8000Hz sample rate,
+but you can override it by setting @option{strict} to @samp{unofficial} or
+lower.
+
+@subsection Options
+
+@table @option
+
+@item b
+Set bitrate in bits per second. Only the following bitrates are supported,
+otherwise libavcodec will round to the nearest valid bitrate.
+
+@table @option
+@item 4750
+@item 5150
+@item 5900
+@item 6700
+@item 7400
+@item 7950
+@item 10200
+@item 12200
+@end table
+
+@item dtx
+Allow discontinuous transmission (generate comfort noise) when set to 1. The
+default value is 0 (disabled).
+
+@end table
+
@c man end AUDIO ENCODERS
@chapter Video Encoders
--
1.8.3.4 (Apple Git-47)
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