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| author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-24 01:25:21 -0400 |
|---|---|---|
| committer | Nils Wallménius <nils@rockbox.org> | 2012-03-18 12:00:39 +0100 |
| commit | b5716df4cb2837bbbc42195cf1aefcf03e21d6a6 (patch) | |
| tree | 130cd712e2e00893b6df9959a375a8d9523a1aca /apps/metadata/au.c | |
| parent | 24bd9d5393dbe39a5c6194877bc00ede669b1d5d (diff) | |
| download | rockbox-b5716df4cb2837bbbc42195cf1aefcf03e21d6a6.zip rockbox-b5716df4cb2837bbbc42195cf1aefcf03e21d6a6.tar.gz rockbox-b5716df4cb2837bbbc42195cf1aefcf03e21d6a6.tar.bz2 rockbox-b5716df4cb2837bbbc42195cf1aefcf03e21d6a6.tar.xz | |
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.c | 105 |
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; -} |