1 files changed, 79 insertions, 0 deletions

diff --git a/lib/rbcodec/codecs/libffmpegFLAC/bitstream.h b/lib/rbcodec/codecs/libffmpegFLAC/bitstream.h
new file mode 100644
index 0000000000..5fc3460c8e
--- /dev/null
+++ b/lib/rbcodec/codecs/libffmpegFLAC/bitstream.h
@@ -0,0 +1,79 @@
+/**
+ * @file bitstream.h
+ * bitstream api header.
+ */
+
+#ifndef BITSTREAM_H
+#define BITSTREAM_H
+
+#include <inttypes.h>
+#include "ffmpeg_get_bits.h"
+
+#ifndef BUILD_STANDALONE
+  #include <config.h>
+  #include <system.h>
+#else
+  #include <stdio.h>
+  #define IBSS_ATTR
+  #define ICONST_ATTR
+  #define ICODE_ATTR
+#endif
+
+#if (CONFIG_CPU == MCF5250) || (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024)
+#define ICODE_ATTR_FLAC ICODE_ATTR
+#define IBSS_ATTR_FLAC  IBSS_ATTR
+/* Enough IRAM to move additional data to it. */
+#define IBSS_ATTR_FLAC_LARGE_IRAM   IBSS_ATTR
+#define IBSS_ATTR_FLAC_XLARGE_IRAM
+
+#elif defined(CPU_S5L870X)
+#define ICODE_ATTR_FLAC ICODE_ATTR
+#define IBSS_ATTR_FLAC  IBSS_ATTR
+/* Enough IRAM to move even more additional data to it. */
+#define IBSS_ATTR_FLAC_LARGE_IRAM   IBSS_ATTR
+#define IBSS_ATTR_FLAC_XLARGE_IRAM  IBSS_ATTR
+
+#else
+#define ICODE_ATTR_FLAC ICODE_ATTR
+#define IBSS_ATTR_FLAC  IBSS_ATTR
+/* Not enough IRAM available. */
+#define IBSS_ATTR_FLAC_LARGE_IRAM
+#define IBSS_ATTR_FLAC_XLARGE_IRAM
+#endif
+
+/* Endian conversion routines for standalone compilation */
+#ifdef BUILD_STANDALONE
+    #ifdef BUILD_BIGENDIAN
+        #define betoh32(x) (x)
+        #define letoh32(x) swap32(x)
+    #else
+        #define letoh32(x) (x)
+        #define betoh32(x) swap32(x)
+    #endif
+
+    /* Taken from rockbox/firmware/export/system.h */
+
+    static inline unsigned short swap16(unsigned short value)
+        /*
+          result[15..8] = value[ 7..0];
+          result[ 7..0] = value[15..8];
+        */
+    {
+        return (value >> 8) | (value << 8);
+    }
+
+    static inline unsigned long swap32(unsigned long value)
+        /*
+          result[31..24] = value[ 7.. 0];
+          result[23..16] = value[15.. 8];
+          result[15.. 8] = value[23..16];
+          result[ 7.. 0] = value[31..24];
+        */
+    {
+        unsigned long hi = swap16(value >> 16);
+        unsigned long lo = swap16(value & 0xffff);
+        return (lo << 16) | hi;
+    }
+#endif
+
+#endif /* BITSTREAM_H */