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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/wave.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/wave.c')
-rw-r--r--apps/metadata/wave.c432
1 files changed, 0 insertions, 432 deletions
diff --git a/apps/metadata/wave.c b/apps/metadata/wave.c
deleted file mode 100644
index 45acea1..0000000
--- a/apps/metadata/wave.c
+++ /dev/null
@@ -1,432 +0,0 @@
-/***************************************************************************
- * __________ __ ___.
- * Open \______ \ ____ ____ | | _\_ |__ _______ ___
- * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
- * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
- * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
- * \/ \/ \/ \/ \/
- * $Id$
- *
- * Copyright (C) 2005 Dave Chapman
- * 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 "rbunicode.h"
-#include "logf.h"
-
-#ifdef DEBUGF
-#undef DEBUGF
-#define DEBUGF(...)
-#endif
-
-/* Wave(RIFF)/Wave64 format */
-
-
-# define AV_WL32(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- ((uint8_t*)(p))[2] = (d)>>16; \
- ((uint8_t*)(p))[3] = (d)>>24; \
- } while(0)
-# define AV_WL16(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- } while(0)
-
-enum {
- RIFF_CHUNK = 0,
- WAVE_CHUNK,
- FMT_CHUNK,
- FACT_CHUNK,
- DATA_CHUNK,
- LIST_CHUNK,
-};
-
-/* Wave chunk names */
-#define WAVE_CHUNKNAME_LENGTH 4
-#define WAVE_CHUNKSIZE_LENGTH 4
-
-static const unsigned char * const wave_chunklist
- = "RIFF"
- "WAVE"
- "fmt "
- "fact"
- "data"
- "LIST";
-
-/* Wave64 GUIDs */
-#define WAVE64_CHUNKNAME_LENGTH 16
-#define WAVE64_CHUNKSIZE_LENGTH 8
-
-static const unsigned char * const wave64_chunklist
- = "riff\x2e\x91\xcf\x11\xa5\xd6\x28\xdb\x04\xc1\x00\x00"
- "wave\xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
- "fmt \xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
- "fact\xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
- "data\xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
- "\xbc\x94\x5f\x92\x5a\x52\xd2\x11\x86\xdc\x00\xc0\x4f\x8e\xdb\x8a";
-
-/* list/info chunk */
-
-struct info_chunk {
- const unsigned char* tag;
- size_t offset;
-};
-
-/* info chunk names are common wave/wave64 */
-static const struct info_chunk info_chunks[] = {
- { "INAM", offsetof(struct mp3entry, title), }, /* title */
- { "IART", offsetof(struct mp3entry, artist), }, /* artist */
- { "ISBJ", offsetof(struct mp3entry, albumartist), }, /* albumartist */
- { "IPRD", offsetof(struct mp3entry, album), }, /* album */
- { "IWRI", offsetof(struct mp3entry, composer), }, /* composer */
- { "ICMT", offsetof(struct mp3entry, comment), }, /* comment */
- { "ISRF", offsetof(struct mp3entry, grouping), }, /* grouping */
- { "IGNR", offsetof(struct mp3entry, genre_string), }, /* genre */
- { "ICRD", offsetof(struct mp3entry, year_string), }, /* date */
- { "IPRT", offsetof(struct mp3entry, track_string), }, /* track/trackcount */
- { "IFRM", offsetof(struct mp3entry, disc_string), }, /* disc/disccount */
-};
-
-#define INFO_CHUNK_COUNT ((int)ARRAYLEN(info_chunks))
-
-/* support formats */
-enum
-{
- WAVE_FORMAT_PCM = 0x0001, /* Microsoft PCM Format */
- WAVE_FORMAT_ADPCM = 0x0002, /* Microsoft ADPCM Format */
- WAVE_FORMAT_IEEE_FLOAT = 0x0003, /* IEEE Float */
- WAVE_FORMAT_ALAW = 0x0006, /* Microsoft ALAW */
- WAVE_FORMAT_MULAW = 0x0007, /* Microsoft MULAW */
- WAVE_FORMAT_DVI_ADPCM = 0x0011, /* Intel's DVI ADPCM */
- WAVE_FORMAT_DIALOGIC_OKI_ADPCM = 0x0017, /* Dialogic OKI ADPCM */
- WAVE_FORMAT_YAMAHA_ADPCM = 0x0020, /* Yamaha ADPCM */
- WAVE_FORMAT_XBOX_ADPCM = 0x0069, /* XBOX ADPCM */
- IBM_FORMAT_MULAW = 0x0101, /* same as WAVE_FORMAT_MULAW */
- IBM_FORMAT_ALAW = 0x0102, /* same as WAVE_FORMAT_ALAW */
- WAVE_FORMAT_ATRAC3 = 0x0270, /* Atrac3 stream */
- WAVE_FORMAT_SWF_ADPCM = 0x5346, /* Adobe SWF ADPCM */
- WAVE_FORMAT_EXTENSIBLE = 0xFFFE,
-};
-
-struct wave_fmt {
- unsigned int formattag;
- unsigned int channels;
- unsigned int blockalign;
- unsigned int bitspersample;
- unsigned int samplesperblock;
- uint32_t totalsamples;
- uint64_t numbytes;
-};
-
-static unsigned char *convert_utf8(const unsigned char *src, unsigned char *dst,
- int size, bool is_64)
-{
- if (is_64)
- {
- /* Note: wave64: metadata codepage is UTF-16 only */
- return utf16LEdecode(src, dst, size);
- }
- return iso_decode(src, dst, -1, size);
-}
-
-static void set_totalsamples(struct wave_fmt *fmt, struct mp3entry* id3)
-{
- switch (fmt->formattag)
- {
- case WAVE_FORMAT_PCM:
- case WAVE_FORMAT_IEEE_FLOAT:
- case WAVE_FORMAT_ALAW:
- case WAVE_FORMAT_MULAW:
- case IBM_FORMAT_ALAW:
- case IBM_FORMAT_MULAW:
- fmt->blockalign = fmt->bitspersample * fmt->channels >> 3;
- fmt->samplesperblock = 1;
- break;
- case WAVE_FORMAT_YAMAHA_ADPCM:
- if (id3->channels != 0)
- {
- fmt->samplesperblock =
- (fmt->blockalign == ((id3->frequency / 60) + 4) * fmt->channels)?
- id3->frequency / 30 : (fmt->blockalign << 1) / fmt->channels;
- }
- break;
- case WAVE_FORMAT_DIALOGIC_OKI_ADPCM:
- fmt->blockalign = 1;
- fmt->samplesperblock = 2;
- break;
- case WAVE_FORMAT_SWF_ADPCM:
- if (fmt->bitspersample != 0 && id3->channels != 0)
- {
- fmt->samplesperblock
- = (((fmt->blockalign << 3) - 2) / fmt->channels - 22)
- / fmt->bitspersample + 1;
- }
- break;
- default:
- break;
- }
-
- if (fmt->blockalign != 0)
- fmt->totalsamples = (fmt->numbytes / fmt->blockalign) * fmt->samplesperblock;
-}
-
-static void parse_riff_format(unsigned char* buf, int fmtsize, struct wave_fmt *fmt,
- struct mp3entry* id3)
-{
- /* wFormatTag */
- fmt->formattag = buf[0] | (buf[1] << 8);
- /* wChannels */
- fmt->channels = buf[2] | (buf[3] << 8);
- /* dwSamplesPerSec */
- id3->frequency = get_long_le(&buf[4]);
- /* dwAvgBytesPerSec */
- id3->bitrate = (get_long_le(&buf[8]) * 8) / 1000;
- /* wBlockAlign */
- fmt->blockalign = buf[12] | (buf[13] << 8);
- /* wBitsPerSample */
- fmt->bitspersample = buf[14] | (buf[15] << 8);
-
- if (fmt->formattag != WAVE_FORMAT_EXTENSIBLE)
- {
- if (fmtsize > 19)
- {
- /* wSamplesPerBlock */
- fmt->samplesperblock = buf[18] | (buf[19] << 8);
- }
- }
- else if (fmtsize > 25)
- {
- /* wValidBitsPerSample */
- fmt->bitspersample = buf[18] | (buf[19] << 8);
- /* SubFormat */
- fmt->formattag = buf[24] | (buf[25] << 8);
- }
-
- /* Check for ATRAC3 stream */
- if (fmt->formattag == WAVE_FORMAT_ATRAC3)
- {
- int jsflag = 0;
- if(id3->bitrate == 66 || id3->bitrate == 94)
- jsflag = 1;
-
- id3->extradata_size = 14;
- id3->channels = 2;
- id3->codectype = AFMT_OMA_ATRAC3;
- id3->bytesperframe = fmt->blockalign;
-
- /* Store the extradata for the codec */
- AV_WL16(&id3->id3v2buf[0], 1); // always 1
- AV_WL32(&id3->id3v2buf[2], id3->frequency);// samples rate
- AV_WL16(&id3->id3v2buf[6], jsflag); // coding mode
- AV_WL16(&id3->id3v2buf[8], jsflag); // coding mode
- AV_WL16(&id3->id3v2buf[10], 1); // always 1
- AV_WL16(&id3->id3v2buf[12], 0); // always 0
- }
-}
-
-static void parse_list_chunk(int fd, struct mp3entry* id3, int chunksize, bool is_64)
-{
- unsigned char tmpbuf[ID3V2_BUF_SIZE];
- unsigned char *bp = tmpbuf;
- unsigned char *endp;
- unsigned char *data_pos;
- unsigned char *tag_pos = id3->id3v2buf;
- int datasize;
- int infosize;
- int remain;
- int i;
-
- if (is_64)
- lseek(fd, 4, SEEK_CUR);
- else if (read(fd, bp, 4) < 4 || memcmp(bp, "INFO", 4))
- return;
-
- /* decrease skip bytes */
- chunksize -= 4;
-
- infosize = read(fd, bp, (ID3V2_BUF_SIZE > chunksize)? chunksize : ID3V2_BUF_SIZE);
- if (infosize <= 8)
- return;
-
- endp = bp + infosize;
- while (bp < endp)
- {
- datasize = get_long_le(bp + 4);
- data_pos = bp + 8;
- remain = ID3V2_BUF_SIZE - (tag_pos - (unsigned char*)id3->id3v2buf);
- if (remain < 1)
- break;
-
- for (i = 0; i < INFO_CHUNK_COUNT; i++)
- {
- if (memcmp(bp, info_chunks[i].tag, 4) == 0)
- {
- *((char **)(((char*)id3) + info_chunks[i].offset)) = tag_pos;
- tag_pos = convert_utf8(data_pos, tag_pos,
- (datasize + 1 >= remain )? remain - 1 : datasize,
- is_64);
- *tag_pos++ = 0;
- break;
- }
- }
- bp = data_pos + datasize + (datasize & 1);
- };
-}
-
-static bool read_header(int fd, struct mp3entry* id3, const unsigned char *chunknames,
- bool is_64)
-{
- /* Use the temporary buffer */
- unsigned char* buf = (unsigned char *)id3->path;
-
- struct wave_fmt fmt;
-
- const unsigned int namelen = (is_64)? WAVE64_CHUNKNAME_LENGTH : WAVE_CHUNKNAME_LENGTH;
- const unsigned int sizelen = (is_64)? WAVE64_CHUNKSIZE_LENGTH : WAVE_CHUNKSIZE_LENGTH;
- const unsigned int len = namelen + sizelen;
- uint64_t chunksize;
- uint64_t offset = len + namelen;
- int read_data;
-
- memset(&fmt, 0, sizeof(struct wave_fmt));
-
- id3->vbr = false; /* All Wave/Wave64 files are CBR */
- id3->filesize = filesize(fd);
-
- /* get RIFF chunk header */
- lseek(fd, 0, SEEK_SET);
- read(fd, buf, offset);
-
- if ((memcmp(buf, chunknames + RIFF_CHUNK * namelen, namelen) != 0) ||
- (memcmp(buf + len, chunknames + WAVE_CHUNK * namelen, namelen) != 0))
- {
- DEBUGF("metadata error: missing riff header.\n");
- return false;
- }
-
- /* iterate over WAVE chunks until 'data' chunk */
- while (read(fd, buf, len) > 0)
- {
- offset += len;
-
- /* get chunk size (when the header is wave64, chunksize includes GUID and data length) */
- chunksize = (is_64) ? get_uint64_le(buf + namelen) - len :
- get_long_le(buf + namelen);
-
- read_data = 0;
- if (memcmp(buf, chunknames + FMT_CHUNK * namelen, namelen) == 0)
- {
- DEBUGF("find 'fmt ' chunk\n");
-
- if (chunksize < 16)
- {
- DEBUGF("metadata error: 'fmt ' chunk is too small: %d\n", (int)chunksize);
- return false;
- }
-
- /* get and parse format */
- read_data = (chunksize > 25)? 26 : chunksize;
-
- read(fd, buf, read_data);
- parse_riff_format(buf, read_data, &fmt, id3);
- }
- else if (memcmp(buf, chunknames + FACT_CHUNK * namelen, namelen) == 0)
- {
- DEBUGF("find 'fact' chunk\n");
-
- /* dwSampleLength */
- if (chunksize >= sizelen)
- {
- /* get totalsamples */
- read_data = sizelen;
- read(fd, buf, read_data);
- fmt.totalsamples = (is_64)? get_uint64_le(buf) : get_long_le(buf);
- }
- }
- else if (memcmp(buf, chunknames + DATA_CHUNK * namelen, namelen) == 0)
- {
- DEBUGF("find 'data' chunk\n");
- fmt.numbytes = chunksize;
- if (fmt.formattag == WAVE_FORMAT_ATRAC3)
- id3->first_frame_offset = offset;
- }
- else if (memcmp(buf, chunknames + LIST_CHUNK * namelen, namelen) == 0)
- {
- DEBUGF("find 'LIST' chunk\n");
- parse_list_chunk(fd, id3, chunksize, is_64);
- lseek(fd, offset, SEEK_SET);
- }
-
- /* padded to next chunk */
- chunksize += ((is_64)? ((1 + ~chunksize) & 0x07) : (chunksize & 1));
-
- offset += chunksize;
- if (offset >= id3->filesize)
- break;
-
- lseek(fd, chunksize - read_data, SEEK_CUR);
- }
-
- if (fmt.numbytes == 0)
- {
- DEBUGF("metadata error: read error or missing 'data' chunk.\n");
- return false;
- }
-
- if (fmt.totalsamples == 0)
- set_totalsamples(&fmt, id3);
-
- if (id3->frequency == 0 || id3->bitrate == 0)
- {
- DEBUGF("metadata error: frequency or bitrate is 0\n");
- return false;
- }
-
- /* Calculate track length (in ms) and estimate the bitrate (in kbit/s) */
- id3->length = (fmt.formattag != WAVE_FORMAT_ATRAC3)?
- (uint64_t)fmt.totalsamples * 1000 / id3->frequency :
- ((id3->filesize - id3->first_frame_offset) * 8) / id3->bitrate;
-
- /* output header/id3 info (for debug) */
- DEBUGF("%s header info ----\n", (is_64)? "wave64" : "wave");
- DEBUGF(" format: %04x\n", (int)fmt.formattag);
- DEBUGF(" channels: %u\n", fmt.channels);
- DEBUGF(" blockalign: %u\n", fmt.blockalign);
- DEBUGF(" bitspersample: %u\n", fmt.bitspersample);
- DEBUGF(" samplesperblock: %u\n", fmt.samplesperblock);
- DEBUGF(" totalsamples: %u\n", (unsigned int)fmt.totalsamples);
- DEBUGF(" numbytes: %u\n", (unsigned int)fmt.numbytes);
- DEBUGF("id3 info ----\n");
- DEBUGF(" frequency: %u\n", (unsigned int)id3->frequency);
- DEBUGF(" bitrate: %d\n", id3->bitrate);
- DEBUGF(" length: %u\n", (unsigned int)id3->length);
-
- return true;
-}
-
-bool get_wave_metadata(int fd, struct mp3entry* id3)
-{
- return read_header(fd, id3, wave_chunklist, false);
-}
-
-bool get_wave64_metadata(int fd, struct mp3entry* id3)
-{
- return read_header(fd, id3, wave64_chunklist, true);
-}