audio/filter: change filter callback signature

The new signature is actually closer to how it actually works, and
someone who is not familiar to the API and how it works might make fewer
fatal mistakes with the new signature than the old one. Pretty weird.

Do this to sneak in a flags parameter, which will later be used to flush
remaining data of at least vf_lavfi.

1 files changed, 3 insertions, 6 deletions

diff --git a/audio/filter/af_dummy.c b/audio/filter/af_dummy.c
index d1cb054413..d024d0343f 100644
--- a/audio/filter/af_dummy.c
+++ b/audio/filter/af_dummy.c
@@ -41,18 +41,15 @@ static int control(struct af_instance* af, int cmd, void* arg)
 }
 
 // Filter data through filter
-static struct mp_audio* play(struct af_instance* af, struct mp_audio* data)
+static int filter(struct af_instance* af, struct mp_audio* data, int flags)
 {
-  // Do something necessary to get rid of annoying warning during compile
-  if(!af)
-    mp_msg(MSGT_AFILTER, MSGL_ERR, "EEEK: Argument af == NULL in af_dummy.c play().");
-  return data;
+    return 0;
 }
 
 // Allocate memory and set function pointers
 static int af_open(struct af_instance* af){
   af->control=control;
-  af->play=play;
+  af->filter=filter;
   return AF_OK;
 }