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authorSean Bartell <wingedtachikoma@gmail.com>2011-06-25 21:32:25 -0400
committerNils Wallménius <nils@rockbox.org>2012-04-25 22:13:20 +0200
commitf40bfc9267b13b54e6379dfe7539447662879d24 (patch)
tree9b20069d5e62809ff434061ad730096836f916f2 /lib/rbcodec/codecs/libffmpegFLAC/bitstream.h
parenta0009907de7a0107d49040d8a180f140e2eff299 (diff)
downloadrockbox-f40bfc9267b13b54e6379dfe7539447662879d24.tar.gz
rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.zip
Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'lib/rbcodec/codecs/libffmpegFLAC/bitstream.h')
-rw-r--r--lib/rbcodec/codecs/libffmpegFLAC/bitstream.h79
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 */