options: add options that set defaults for af/vf/ao/vo

There are some use cases for this. For example, you can use it to set
defaults of automatically inserted filters (like af_lavrresample). It's
also useful if you have a non-trivial VO configuration, and want to use
--vo to quickly change between the drivers without repeating the whole
configuration in the --vo argument.

1 files changed, 0 insertions, 1 deletions

diff --git a/audio/filter/af.h b/audio/filter/af.h
index 7dee490665..77f3bb4945 100644
--- a/audio/filter/af.h
+++ b/audio/filter/af.h
@@ -79,7 +79,6 @@ struct af_stream {
     struct af_instance *last;
     // The user sets the input format (what the decoder outputs), and sets some
     // or all fields in output to the output format the AO accepts.
-    // See fixup_output_format().
     struct mp_audio input;
     struct mp_audio output;
     struct mp_audio filter_output;