1 files changed, 138 insertions, 0 deletions

diff --git a/lib/rbcodec/codecs/libm4a/m4a.h b/lib/rbcodec/codecs/libm4a/m4a.h
new file mode 100644
index 0000000000..aa8e768045
--- /dev/null
+++ b/lib/rbcodec/codecs/libm4a/m4a.h
@@ -0,0 +1,138 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2005 Dave Chapman
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _M4A_H
+#define _M4A_H
+
+#include <codecs.h>
+#include <inttypes.h>
+
+/* AAC codecdata appears to always be less than 8 bytes - see
+   AudioSpecificConfig2 in libfaad/mp4.c
+
+   ALAC codecdata appears to always be 44 bytes (see alac_set_info in
+   libalac/alac.c) but my test file contains 56 bytes.
+
+   So we go safe and round up to 64 bytes - if we find more than this,
+   we give an error (even though we could possibly continue), so we
+   can increase this buffer.
+*/
+
+#define MAX_CODECDATA_SIZE  64
+
+typedef struct {
+  struct codec_api* ci;
+  int eof;
+} stream_t;
+
+typedef uint32_t fourcc_t;
+
+typedef struct 
+{
+    uint32_t first_chunk;
+    uint32_t num_samples;
+} sample_to_chunk_t;
+
+typedef struct 
+{
+    uint32_t sample_count;
+    uint32_t sample_duration;
+} time_to_sample_t;
+
+typedef struct
+{
+    uint32_t sample;
+    uint32_t offset;
+} sample_offset_t;
+
+typedef struct
+{
+    uint16_t num_channels;
+    uint16_t sound_sample_size;
+    uint32_t sound_sample_rate;
+    fourcc_t format;
+    void *buf;
+
+    sample_to_chunk_t *sample_to_chunk;
+    uint32_t num_sample_to_chunks;
+    
+    sample_offset_t *lookup_table;
+    uint32_t num_lookup_table;
+    
+    time_to_sample_t *time_to_sample;
+    uint32_t num_time_to_samples;
+
+    uint32_t num_sample_byte_sizes;
+
+    uint32_t codecdata_len;
+    uint8_t codecdata[MAX_CODECDATA_SIZE];
+
+    int mdat_offset;
+    uint32_t mdat_len;
+#if 0
+    void *mdat;
+#endif
+} demux_res_t;
+
+int qtmovie_read(stream_t *stream, demux_res_t *demux_res);
+
+#ifndef MAKEFOURCC
+#define MAKEFOURCC(ch0, ch1, ch2, ch3) ( \
+    ( (int32_t)(char)(ch0) << 24 ) | \
+    ( (int32_t)(char)(ch1) << 16 ) | \
+    ( (int32_t)(char)(ch2) << 8 ) | \
+    ( (int32_t)(char)(ch3) ) )
+#endif
+
+#ifndef SLPITFOURCC
+/* splits it into ch0, ch1, ch2, ch3 - use for printf's */
+#define SPLITFOURCC(code) \
+    (char)((int32_t)code >> 24), \
+    (char)((int32_t)code >> 16), \
+    (char)((int32_t)code >> 8), \
+    (char)code
+#endif
+
+void stream_read(stream_t *stream, size_t len, void *buf);
+
+int32_t stream_tell(stream_t *stream);
+int32_t stream_read_int32(stream_t *stream);
+uint32_t stream_read_uint32(stream_t *stream);
+
+uint16_t stream_read_uint16(stream_t *stream);
+
+uint8_t stream_read_uint8(stream_t *stream);
+
+void stream_skip(stream_t *stream, size_t skip);
+void stream_seek(stream_t *stream, size_t offset);
+
+int stream_eof(stream_t *stream);
+
+void stream_create(stream_t *stream,struct codec_api* ci);
+unsigned int get_sample_offset(demux_res_t *demux_res, uint32_t sample);
+unsigned int m4a_seek (demux_res_t* demux_res, stream_t* stream,
+    uint32_t sound_sample_loc, uint32_t* sound_samples_done, 
+    int* current_sample);
+unsigned int m4a_seek_raw (demux_res_t* demux_res, stream_t* stream,
+    uint32_t file_loc, uint32_t* sound_samples_done, int* current_sample);
+int m4a_check_sample_offset(demux_res_t *demux_res, uint32_t frame, uint32_t *start);
+
+#endif /* STREAM_H */