f640b89a12
- does not get dwAvgBytesPerSec wave/aiff/smaf/wave64 codec - corrects the problem that codec_main() returns invalid value. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25051 a1c6a512-1295-4272-9138-f99709370657
446 lines
14 KiB
C
446 lines
14 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* 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 "codeclib.h"
|
|
#include "codecs/libpcm/support_formats.h"
|
|
|
|
CODEC_HEADER
|
|
|
|
/* Wave64 codec
|
|
*
|
|
* References
|
|
* [1] VCS Aktiengesellschaft, Sony Wave64, Informations_about_Sony_Wave64.pdf
|
|
*/
|
|
|
|
#define PCM_SAMPLE_SIZE (4096*2)
|
|
|
|
static int32_t samples[PCM_SAMPLE_SIZE] IBSS_ATTR;
|
|
|
|
/* Wave64 GUIDs */
|
|
#define WAVE64_GUID_RIFF "riff\x2e\x91\xcf\x11\xa5\xd6\x28\xdb\x04\xc1\x00\x00"
|
|
#define WAVE64_GUID_WAVE "wave\xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
|
|
#define WAVE64_GUID_FMT "fmt \xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
|
|
#define WAVE64_GUID_FACT "fact\xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
|
|
#define WAVE64_GUID_DATA "data\xf3\xac\xd3\x11\x8c\xd1\x00\xc0\x4f\x8e\xdb\x8a"
|
|
|
|
/* This codec support WAVE files with the following formats: */
|
|
enum
|
|
{
|
|
WAVE_FORMAT_UNKNOWN = 0x0000, /* Microsoft Unknown Wave Format */
|
|
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_SWF_ADPCM = 0x5346, /* Adobe SWF ADPCM */
|
|
WAVE_FORMAT_EXTENSIBLE = 0xFFFE
|
|
};
|
|
|
|
const struct pcm_entry wave_codecs[] = {
|
|
{ WAVE_FORMAT_UNKNOWN, 0 },
|
|
{ WAVE_FORMAT_PCM, get_linear_pcm_codec },
|
|
{ WAVE_FORMAT_ADPCM, get_ms_adpcm_codec },
|
|
{ WAVE_FORMAT_IEEE_FLOAT, get_ieee_float_codec },
|
|
{ WAVE_FORMAT_ALAW, get_itut_g711_alaw_codec },
|
|
{ WAVE_FORMAT_MULAW, get_itut_g711_mulaw_codec },
|
|
{ WAVE_FORMAT_DVI_ADPCM, get_dvi_adpcm_codec },
|
|
{ WAVE_FORMAT_DIALOGIC_OKI_ADPCM, get_dialogic_oki_adpcm_codec },
|
|
{ WAVE_FORMAT_YAMAHA_ADPCM, get_yamaha_adpcm_codec },
|
|
{ WAVE_FORMAT_XBOX_ADPCM, get_dvi_adpcm_codec },
|
|
{ IBM_FORMAT_MULAW, get_itut_g711_mulaw_codec },
|
|
{ IBM_FORMAT_ALAW, get_itut_g711_alaw_codec },
|
|
{ WAVE_FORMAT_SWF_ADPCM, get_swf_adpcm_codec },
|
|
};
|
|
|
|
#define NUM_FORMATS 13
|
|
|
|
static const struct pcm_codec *get_wave_codec(uint32_t formattag)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < NUM_FORMATS; i++)
|
|
{
|
|
if (wave_codecs[i].format_tag == formattag)
|
|
{
|
|
if (wave_codecs[i].get_codec)
|
|
return wave_codecs[i].get_codec();
|
|
return 0;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct pcm_format format;
|
|
static uint32_t bytesdone;
|
|
|
|
/* Read an unaligned 64-bit little endian unsigned integer from buffer. */
|
|
static uint64_t get_uint64_le(void* buf)
|
|
{
|
|
unsigned char* p = (unsigned char*) buf;
|
|
|
|
return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24) | ((uint64_t)p[4] << 32) |
|
|
((uint64_t)p[5] << 40) | ((uint64_t)p[6] << 48) | ((uint64_t)p[7] << 56);
|
|
}
|
|
|
|
static bool set_msadpcm_coeffs(unsigned char *buf)
|
|
{
|
|
int i;
|
|
int num;
|
|
uint64_t size;
|
|
|
|
buf += 16; /* skip 'fmt ' GUID */
|
|
size = get_uint64_le(buf);
|
|
if (size < 50)
|
|
{
|
|
DEBUGF("CODEC_ERROR: microsoft adpcm 'fmt ' chunk size=%d < 50\n", (int)size);
|
|
return false;
|
|
}
|
|
|
|
/* get nNumCoef */
|
|
buf += 28;
|
|
num = buf[0] | (buf[1] << 8);
|
|
|
|
/*
|
|
* In many case, nNumCoef is 7.
|
|
* Depending upon the encoder, as for this value there is a possibility of
|
|
* increasing more.
|
|
* If you found the file where this value exceeds 7, please report.
|
|
*/
|
|
if (num != MSADPCM_NUM_COEFF)
|
|
{
|
|
DEBUGF("CODEC_ERROR: microsoft adpcm nNumCoef=%d != 7\n", num);
|
|
return false;
|
|
}
|
|
|
|
/* get aCoeffs */
|
|
buf += 2;
|
|
for (i = 0; i < MSADPCM_NUM_COEFF; i++)
|
|
{
|
|
format.coeffs[i][0] = buf[0] | (SE(buf[1]) << 8);
|
|
format.coeffs[i][1] = buf[2] | (SE(buf[3]) << 8);
|
|
buf += 4;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static uint8_t *read_buffer(size_t *realsize)
|
|
{
|
|
uint8_t *buffer = (uint8_t *)ci->request_buffer(realsize, format.chunksize);
|
|
if (bytesdone + (*realsize) > format.numbytes)
|
|
*realsize = format.numbytes - bytesdone;
|
|
bytesdone += *realsize;
|
|
ci->advance_buffer(*realsize);
|
|
return buffer;
|
|
}
|
|
|
|
/* this is the codec entry point */
|
|
enum codec_status codec_main(void)
|
|
{
|
|
int status = CODEC_OK;
|
|
uint32_t decodedsamples;
|
|
size_t n;
|
|
int bufcount;
|
|
int endofstream;
|
|
unsigned char *buf;
|
|
uint8_t *wavbuf;
|
|
off_t firstblockposn; /* position of the first block in file */
|
|
const struct pcm_codec *codec;
|
|
uint64_t size;
|
|
|
|
/* Generic codec initialisation */
|
|
ci->configure(DSP_SET_SAMPLE_DEPTH, PCM_OUTPUT_DEPTH);
|
|
|
|
next_track:
|
|
if (codec_init()) {
|
|
DEBUGF("codec_init() error\n");
|
|
status = CODEC_ERROR;
|
|
goto exit;
|
|
}
|
|
|
|
while (!*ci->taginfo_ready && !ci->stop_codec)
|
|
ci->sleep(1);
|
|
|
|
codec_set_replaygain(ci->id3);
|
|
|
|
/* Need to save offset for later use (cleared indirectly by advance_buffer) */
|
|
bytesdone = ci->id3->offset;
|
|
|
|
/* get RIFF chunk header */
|
|
buf = ci->request_buffer(&n, 40);
|
|
if (n < 40) {
|
|
DEBUGF("request_buffer error\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
if ((memcmp(buf , WAVE64_GUID_RIFF, 16) != 0) ||
|
|
(memcmp(buf+24, WAVE64_GUID_WAVE, 16) != 0))
|
|
{
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
/* advance to first WAVE chunk */
|
|
ci->advance_buffer(40);
|
|
|
|
firstblockposn = 40;
|
|
ci->memset(&format, 0, sizeof(struct pcm_format));
|
|
format.is_signed = true;
|
|
format.is_little_endian = true;
|
|
|
|
decodedsamples = 0;
|
|
codec = 0;
|
|
|
|
/* iterate over WAVE chunks until the 'data' chunk, which should be after the 'fmt ' chunk */
|
|
while (true) {
|
|
/* get WAVE chunk header */
|
|
buf = ci->request_buffer(&n, 1024);
|
|
if (n < 8) {
|
|
DEBUGF("data chunk request_buffer error\n");
|
|
/* no more chunks, 'data' chunk must not have been found */
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
/* chunkSize */
|
|
size = get_uint64_le(buf+16) - 24;
|
|
if (memcmp(buf, WAVE64_GUID_FMT, 16) == 0) {
|
|
if (size < 16) {
|
|
DEBUGF("CODEC_ERROR: 'fmt ' chunk size=%d < 16\n", (int)size);
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
/* wFormatTag */
|
|
format.formattag=buf[24]|(buf[25]<<8);
|
|
/* wChannels */
|
|
format.channels=buf[26]|(buf[27]<<8);
|
|
/* skipping dwSamplesPerSec */
|
|
/* skipping dwAvgBytesPerSec */
|
|
/* wBlockAlign */
|
|
format.blockalign=buf[36]|(buf[37]<<8);
|
|
/* wBitsPerSample */
|
|
format.bitspersample=buf[38]|(buf[39]<<8);
|
|
if (format.formattag != WAVE_FORMAT_PCM) {
|
|
if (size < 18) {
|
|
/* this is not a fatal error with some formats,
|
|
* we'll see later if we can't decode it */
|
|
DEBUGF("CODEC_WARNING: non-PCM WAVE (formattag=0x%x) "
|
|
"doesn't have ext. fmt descr (chunksize=%d<18).\n",
|
|
(unsigned int)format.formattag, (int)size);
|
|
}
|
|
else
|
|
{
|
|
if (format.formattag != WAVE_FORMAT_EXTENSIBLE)
|
|
format.samplesperblock = buf[42]|(buf[43]<<8);
|
|
else {
|
|
format.size = buf[40]|(buf[41]<<8);
|
|
if (format.size < 22) {
|
|
DEBUGF("CODEC_ERROR: WAVE_FORMAT_EXTENSIBLE is "
|
|
"missing extension\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
/* wValidBitsPerSample */
|
|
format.bitspersample = buf[42]|(buf[43]<<8);
|
|
/* skipping dwChannelMask (4bytes) */
|
|
/* SubFormat (only get the first two bytes) */
|
|
format.formattag = buf[48]|(buf[49]<<8);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* msadpcm specific */
|
|
if (format.formattag == WAVE_FORMAT_ADPCM)
|
|
{
|
|
if (!set_msadpcm_coeffs(buf))
|
|
{
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* get codec */
|
|
codec = get_wave_codec(format.formattag);
|
|
if (!codec)
|
|
{
|
|
DEBUGF("CODEC_ERROR: unsupported wave format 0x%x\n",
|
|
(unsigned int) format.formattag);
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
/* riff 8bit linear pcm is unsigned */
|
|
if (format.formattag == WAVE_FORMAT_PCM && format.bitspersample == 8)
|
|
format.is_signed = false;
|
|
|
|
/* check format, and calculate chunk size */
|
|
if (!codec->set_format(&format))
|
|
{
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
} else if (memcmp(buf, WAVE64_GUID_DATA, 16) == 0) {
|
|
format.numbytes = size;
|
|
/* advance to start of data */
|
|
ci->advance_buffer(24);
|
|
firstblockposn += 24;
|
|
break;
|
|
} else if (memcmp(buf, WAVE64_GUID_FACT, 16) == 0) {
|
|
/* skip 'fact' chunk */
|
|
} else {
|
|
DEBUGF("unknown Wave64 chunk: "
|
|
"'%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x'\n",
|
|
buf[0], buf[1], buf[ 2], buf[ 3], buf[ 4], buf[ 5], buf[ 6], buf[ 7],
|
|
buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15]);
|
|
}
|
|
|
|
/* go to next chunk (8byte bound) */
|
|
size += 24 + ((1 + ~size) & 0x07);
|
|
|
|
ci->advance_buffer(size);
|
|
firstblockposn += size;
|
|
}
|
|
|
|
if (!codec)
|
|
{
|
|
DEBUGF("CODEC_ERROR: 'fmt ' chunk not found\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
/* common format check */
|
|
if (format.channels == 0) {
|
|
DEBUGF("CODEC_ERROR: 'fmt ' chunk not found or 0-channels file\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
if (format.samplesperblock == 0) {
|
|
DEBUGF("CODEC_ERROR: 'fmt ' chunk not found or 0-wSamplesPerBlock file\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
if (format.blockalign == 0)
|
|
{
|
|
DEBUGF("CODEC_ERROR: 'fmt ' chunk not found or 0-blockalign file\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
if (format.numbytes == 0) {
|
|
DEBUGF("CODEC_ERROR: 'data' chunk not found or has zero-length\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
/* check chunksize */
|
|
if ((format.chunksize / format.blockalign) * format.samplesperblock * format.channels
|
|
> PCM_SAMPLE_SIZE)
|
|
format.chunksize = (PCM_SAMPLE_SIZE / format.blockalign) * format.blockalign;
|
|
if (format.chunksize == 0)
|
|
{
|
|
DEBUGF("CODEC_ERROR: chunksize is 0\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
ci->configure(DSP_SWITCH_FREQUENCY, ci->id3->frequency);
|
|
if (format.channels == 2) {
|
|
ci->configure(DSP_SET_STEREO_MODE, STEREO_INTERLEAVED);
|
|
} else if (format.channels == 1) {
|
|
ci->configure(DSP_SET_STEREO_MODE, STEREO_MONO);
|
|
} else {
|
|
DEBUGF("CODEC_ERROR: more than 2 channels\n");
|
|
status = CODEC_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
/* make sure we're at the correct offset */
|
|
if (bytesdone > (uint32_t) firstblockposn) {
|
|
/* Round down to previous block */
|
|
uint32_t offset = bytesdone - bytesdone % format.blockalign;
|
|
|
|
ci->advance_buffer(offset-firstblockposn);
|
|
bytesdone = offset - firstblockposn;
|
|
} else {
|
|
/* already where we need to be */
|
|
bytesdone = 0;
|
|
}
|
|
|
|
/* The main decoder loop */
|
|
endofstream = 0;
|
|
|
|
while (!endofstream) {
|
|
ci->yield();
|
|
if (ci->stop_codec || ci->new_track) {
|
|
break;
|
|
}
|
|
|
|
if (ci->seek_time) {
|
|
struct pcm_pos *newpos = codec->get_seek_pos(ci->seek_time, &read_buffer);
|
|
|
|
if (newpos->pos > format.numbytes)
|
|
break;
|
|
if (ci->seek_buffer(firstblockposn + newpos->pos))
|
|
{
|
|
bytesdone = newpos->pos;
|
|
decodedsamples = newpos->samples;
|
|
}
|
|
ci->seek_complete();
|
|
}
|
|
|
|
wavbuf = (uint8_t *)ci->request_buffer(&n, format.chunksize);
|
|
if (n == 0)
|
|
break; /* End of stream */
|
|
if (bytesdone + n > format.numbytes) {
|
|
n = format.numbytes - bytesdone;
|
|
endofstream = 1;
|
|
}
|
|
|
|
status = codec->decode(wavbuf, n, samples, &bufcount);
|
|
if (status == CODEC_ERROR)
|
|
{
|
|
DEBUGF("codec error\n");
|
|
goto done;
|
|
}
|
|
|
|
ci->pcmbuf_insert(samples, NULL, bufcount);
|
|
ci->advance_buffer(n);
|
|
bytesdone += n;
|
|
decodedsamples += bufcount;
|
|
|
|
if (bytesdone >= format.numbytes)
|
|
endofstream = 1;
|
|
ci->set_elapsed(decodedsamples*1000LL/ci->id3->frequency);
|
|
}
|
|
status = CODEC_OK;
|
|
|
|
done:
|
|
if (ci->request_next_track())
|
|
goto next_track;
|
|
|
|
exit:
|
|
return status;
|
|
}
|