From 804fe1979f9ed7bef7badaf0aa08e35e09874772 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Sun, 30 Oct 2016 16:28:27 +0100
Subject: Add rudimentary file input

No nonblock support yet
---
 src/mpeg.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'src/mpeg.c')

diff --git a/src/mpeg.c b/src/mpeg.c
index f7aed34..fb6591a 100644
--- a/src/mpeg.c
+++ b/src/mpeg.c
@@ -219,3 +219,29 @@ int readMpegFrame(int file, void* data, int size)
     }
     return framelength;
 }
+
+int checkDabMpegFrame(void* data) {
+    mpegHeader* header = (mpegHeader*)data;
+    unsigned long* headerData = (unsigned long*)data;
+    if ((*headerData & 0x0f0ffcff) == 0x0004fcff) return 0;
+    if ((*headerData & 0x0f0ffcff) == 0x0004f4ff) return 0;
+    if (getMpegFrequency(header) != 48000) {
+        if (getMpegFrequency(header) != 24000) {
+            return MPEG_FREQUENCY;
+        }
+    }
+    if (header->padding != 0) {
+        return MPEG_PADDING;
+    }
+    if (header->copyright != 0) {
+        return MPEG_COPYRIGHT;
+    }
+    if (header->original != 0) {
+        return MPEG_ORIGINAL;
+    }
+    if (header->emphasis != 0) {
+        return MPEG_EMPHASIS;
+    }
+    return -1;
+}
+
-- 
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