wildmididec: explicitly cast buffer data to int8 in _decode()

Fixes compiler warning introduced in commit ff32a4297:

gstwildmididec.c:637:47: error: pointer targets in passing argument 2 of ‘WildMidi_GetOutput’ differ in signedness
       WildMidi_GetOutput (wildmidi_dec->song, (char *) (info.data), info.size);
                                               ^
wildmidi_lib.h:106:15: note: expected ‘int8_t * {aka signed char *}’ but argument is of type ‘char *’
 WM_SYMBOL int WildMidi_GetOutput (midi *handle, int8_t *buffer, uint32_t size);

https://bugzilla.gnome.org/show_bug.cgi?id=768576

diff --git a/ext/wildmidi/gstwildmididec.c b/ext/wildmidi/gstwildmididec.c
index 69aa75c..934ca35 100644 (file)
--- a/ext/wildmidi/gstwildmididec.c
+++ b/ext/wildmidi/gstwildmididec.c
@@ -634,7 +634,8 @@ gst_wildmidi_dec_decode (GstNonstreamAudioDecoder * dec, GstBuffer ** buffer,
   /* The actual decoding */
   gst_buffer_map (outbuf, &info, GST_MAP_WRITE);
   decoded_size_in_bytes =
-      WildMidi_GetOutput (wildmidi_dec->song, (char *) (info.data), info.size);
+      WildMidi_GetOutput (wildmidi_dec->song, (int8_t *) (info.data),
+      info.size);
   gst_buffer_unmap (outbuf, &info);
 
   if (decoded_size_in_bytes == 0) {