Initial opus codec support

Synchronised with opus repo on github (https://github.com/freqmod/rockbox-opus)

Status:
* Seeking ported from speex, but fails on some cases (e.g. seek to granule 0)
* ReplayGain parsing needs to be reworked, we do vorbis-style replaygain now.
  http://wiki.xiph.org/OggOpus#Comment_Header explicitly forbids these in
  favour of R128_TRACK_GAIN tag.
* No optimisation yet, source files still nearly identical to opus upstream
* Multi-stream opus files may not be parsed correctly

Change-Id: Ia66f1027dc1d288083e3c57b2816700078376f9a
Reviewed-on: http://gerrit.rockbox.org/300
Reviewed-by: Bertrik Sikken <bertrik@sikken.nl>
Tested-by: Bertrik Sikken <bertrik@sikken.nl>

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/rbcodec/codecs/libopus/ogg/os_types.h b/lib/rbcodec/codecs/libopus/ogg/os_types.h
new file mode 100644
index 0000000000..55f0bf559c
--- /dev/null
+++ b/lib/rbcodec/codecs/libopus/ogg/os_types.h
@@ -0,0 +1,56 @@
+#include "config.h"
+#include <stdint.h>
+#include "codeclib.h"
+
+#ifdef SIMULATOR
+
+#include <stdio.h>
+
+static inline void* _ogg_malloc(size_t size)
+{
+    void *buf;
+
+    printf("ogg_malloc %d", size);
+    buf = codec_malloc(size);
+    printf(" = %p\n", buf);
+    
+    return buf;
+}
+
+static inline void* _ogg_calloc(size_t nmemb, size_t size)
+{
+    printf("ogg_calloc %d %d\n", nmemb, size);
+    return codec_calloc(nmemb, size);
+}
+
+static inline void* _ogg_realloc(void *ptr, size_t size)
+{
+    void *buf;
+
+    printf("ogg_realloc %p %d", ptr, size);
+    buf = codec_realloc(ptr, size);
+    printf(" = %p\n", buf);
+    return buf;
+}
+
+static inline void _ogg_free(void *ptr)
+{
+    printf("ogg_free %p\n", ptr);
+    codec_free(ptr);
+}
+
+#else
+
+#define _ogg_malloc  codec_malloc
+#define _ogg_calloc  codec_calloc
+#define _ogg_realloc codec_realloc
+#define _ogg_free    codec_free
+
+#endif
+
+typedef int16_t ogg_int16_t;
+typedef uint16_t ogg_uint16_t;
+typedef int32_t ogg_int32_t;
+typedef uint32_t ogg_uint32_t;
+typedef int64_t ogg_int64_t;
+