ad_spdif: move frame sizes to a general function

Needed for the next commit. This commit should probably be reverted as
soon as we're working with full audio frames internally, instead of
"flat" FIFOs.

1 files changed, 13 insertions, 0 deletions

diff --git a/audio/format.c b/audio/format.c
index 08b369c090..5e83ead1b2 100644
--- a/audio/format.c
+++ b/audio/format.c
@@ -227,3 +227,16 @@ int af_format_conversion_score(int dst_format, int src_format)
         score -= 2048;  // has to convert float<->int
     return score;
 }
+
+int af_format_sample_alignment(int format)
+{
+    switch (format) {
+    case AF_FORMAT_S_AAC:       return 16384;
+    case AF_FORMAT_S_AC3:       return 6144;
+    case AF_FORMAT_S_DTSHD:     return 32768;
+    case AF_FORMAT_S_EAC3:      return 24576;
+    case AF_FORMAT_S_MP3:       return 4608;
+    case AF_FORMAT_S_TRUEHD:    return 61440;
+    default:                    return 1;
+    }
+}