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authorSean Bartell <wingedtachikoma@gmail.com>2011-06-24 01:25:21 -0400
committerNils Wallménius <nils@rockbox.org>2012-03-18 12:00:39 +0100
commitb5716df4cb2837bbbc42195cf1aefcf03e21d6a6 (patch)
tree130cd712e2e00893b6df9959a375a8d9523a1aca /apps/metadata/au.c
parent24bd9d5393dbe39a5c6194877bc00ede669b1d5d (diff)
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Build librbcodec with DSP and metadata.
All associated files are moved to /lib/rbcodec. Change-Id: I572ddd2b8a996aae1e98c081d06b1ed356dce222
Diffstat (limited to 'apps/metadata/au.c')
-rw-r--r--apps/metadata/au.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/apps/metadata/au.c b/apps/metadata/au.c
deleted file mode 100644
index 94e7453..0000000
--- a/apps/metadata/au.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/***************************************************************************
- * __________ __ ___.
- * Open \______ \ ____ ____ | | _\_ |__ _______ ___
- * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
- * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
- * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
- * \/ \/ \/ \/ \/
- * $Id$
- *
- * Copyright (C) 2010 Yoshihisa Uchida
- *
- * 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.
- *
- ****************************************************************************/
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-
-#include "system.h"
-#include "metadata.h"
-#include "metadata_common.h"
-#include "metadata_parsers.h"
-#include "logf.h"
-
-static const unsigned char bitspersamples[9] = {
- 0, /* encoding */
- 8, /* 1: G.711 MULAW */
- 8, /* 2: Linear PCM 8bit */
- 16, /* 3: Linear PCM 16bit */
- 24, /* 4: Linear PCM 24bit */
- 32, /* 5: Linear PCM 32bit */
- 32, /* 6: IEEE float 32bit */
- 64, /* 7: IEEE float 64bit */
- /* encoding 8 - 26 unsupported. */
- 8, /* 27: G.711 ALAW */
-};
-
-static inline unsigned char get_au_bitspersample(unsigned int encoding)
-{
- if (encoding < 8)
- return bitspersamples[encoding];
- else if (encoding == 27)
- return bitspersamples[8];
-
- return 0;
-}
-
-bool get_au_metadata(int fd, struct mp3entry* id3)
-{
- /* temporary buffer */
- unsigned char* buf = (unsigned char *)id3->path;
- unsigned long numbytes = 0;
- int offset;
-
- id3->vbr = false; /* All Sun audio files are CBR */
- id3->filesize = filesize(fd);
- id3->length = 0;
-
- lseek(fd, 0, SEEK_SET);
- if ((read(fd, buf, 24) < 24) || (memcmp(buf, ".snd", 4) != 0))
- {
- /*
- * no header
- *
- * frequency: 8000 Hz
- * bits per sample: 8 bit
- * channel: mono
- */
- numbytes = id3->filesize;
- id3->frequency = 8000;
- id3->bitrate = 8;
- }
- else
- {
- /* parse header */
-
- /* data offset */
- offset = get_long_be(buf + 4);
- if (offset < 24)
- {
- DEBUGF("CODEC_ERROR: sun audio offset size is small: %d\n", offset);
- return false;
- }
- /* data size */
- numbytes = get_long_be(buf + 8);
- if (numbytes == (uint32_t)0xffffffff)
- numbytes = id3->filesize - offset;
-
- id3->frequency = get_long_be(buf + 16);
- id3->bitrate = get_au_bitspersample(get_long_be(buf + 12)) * get_long_be(buf + 20)
- * id3->frequency / 1000;
- }
-
- /* Calculate track length [ms] */
- if (id3->bitrate)
- id3->length = (numbytes << 3) / id3->bitrate;
-
- return true;
-}