Add docs for autoscale.
Update information for autorotate according to ffplay.
Signed-off-by: U. Artie Eoff <ullysses.a.e...@intel.com>
Signed-off-by: Linjie Fu <linjie...@intel.com>
---
doc/ffmpeg.texi | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index cd35eb49c8..99121b6981 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -734,10 +734,6 @@ ffmpeg -dump_attachment:t "" -i INPUT
Technical note -- attachments are implemented as codec extradata, so this
option can actually be used to extract extradata from any stream, not just
attachments.
-
-@item -noautorotate
-Disable automatically rotating video based on file metadata.
-
@end table
@section Video Options
@@ -819,6 +815,19 @@ Create the filtergraph specified by @var{filtergraph} and
use it to
filter the stream.
This is an alias for @code{-filter:v}, see the @ref{filter_option,,-filter
option}.
+
+@item -autorotate
+Automatically rotate the video according to file metadata. Enabled by
+default, use @option{-noautorotate} to disable it.
+
+@item -autoscale
+Automatically scale the video according to the resolution of first frame.
+Enabled by default, use @option{-noautoscale} to disable it. When autoscale is
+disabled, all output frames might not be in the same resolution and may require
+some additional explicit processing according to your final rendering/output
+destination. Disabling autoscale may not work in all situations. Therefore, it
+is not recommended to disable it unless you really know what you are doing.
+Disable autoscale at your own risk.
@end table
@section Advanced Video options
--
2.17.1
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