audio: drop swapped-endian audio formats

Until now, the audio chain could handle both little endian and big
endian formats. This actually doesn't make much sense, since the audio
API and the HW will most likely prefer native formats. Or at the very
least, it should be trivial for audio drivers to do the byte swapping
themselves.

From now on, the audio chain contains native-endian formats only. All
AOs and some filters are adjusted. af_convertsignendian.c is now wrongly
named, but the filter name is adjusted. In some cases, the audio
infrastructure was reused on the demuxer side, but that is relatively
easy to rectify.

This is a quite intrusive and radical change. It's possible that it will
break some things (especially if they're obscure or not Linux), so watch
out for regressions. It's probably still better to do it the bulldozer
way, since slow transition and researching foreign platforms would take
a lot of time and effort.

1 files changed, 14 insertions, 28 deletions

diff --git a/audio/out/ao_rsound.c b/audio/out/ao_rsound.c
index e41a89ae37..fe187144a6 100644
--- a/audio/out/ao_rsound.c
+++ b/audio/out/ao_rsound.c
@@ -52,40 +52,26 @@ static int set_format(struct ao *ao)
     case AF_FORMAT_S8:
         rsd_format = RSD_S8;
         break;
-    case AF_FORMAT_S16_LE:
-        rsd_format = RSD_S16_LE;
+    case AF_FORMAT_S16:
+        rsd_format = RSD_S16_NE;
         break;
-    case AF_FORMAT_S16_BE:
-        rsd_format = RSD_S16_BE;
+    case AF_FORMAT_U16:
+        rsd_format = RSD_U16_NE;
         break;
-    case AF_FORMAT_U16_LE:
-        rsd_format = RSD_U16_LE;
+    case AF_FORMAT_S24:
+    case AF_FORMAT_U24:
+        rsd_format = RSD_S32_NE;
+        ao->format = AF_FORMAT_S32;
         break;
-    case AF_FORMAT_U16_BE:
-        rsd_format = RSD_U16_BE;
+    case AF_FORMAT_S32:
+        rsd_format = RSD_S32_NE;
         break;
-    case AF_FORMAT_S24_LE:
-    case AF_FORMAT_S24_BE:
-    case AF_FORMAT_U24_LE:
-    case AF_FORMAT_U24_BE:
-        rsd_format = RSD_S32_LE;
-        ao->format = AF_FORMAT_S32_LE;
-        break;
-    case AF_FORMAT_S32_LE:
-        rsd_format = RSD_S32_LE;
-        break;
-    case AF_FORMAT_S32_BE:
-        rsd_format = RSD_S32_BE;
-        break;
-    case AF_FORMAT_U32_LE:
-        rsd_format = RSD_U32_LE;
-        break;
-    case AF_FORMAT_U32_BE:
-        rsd_format = RSD_U32_BE;
+    case AF_FORMAT_U32:
+        rsd_format = RSD_U32_NE;
         break;
     default:
-        rsd_format = RSD_S16_LE;
-        ao->format = AF_FORMAT_S16_LE;
+        rsd_format = RSD_S16_NE;
+        ao->format = AF_FORMAT_S16;
     }
 
     return rsd_format;