second attempt,
a few days ago i talk about libsndfile and flac and ogg support.
i think we have to add ogg support and remove the obsolete flac file reader.
also we can add ogg, flac, .... song export formats.
second step is to try fixed export samplerates. in moment diskwriterdriver
starts witch
audiodriver samplerate. this is no problem, but sometimes the files hydrogen
have export don't
fit in length. maybe this caused because some hardware dont get the ideal
samplerate eg 44100, 48000, .... often this is something like 44099(my on-board
sound card use this rate) or similar.
so i think we start the driver with settings users can do.
this mean export song with
rate in hz
44100
48000
96000
192000
depth in bit
8
16
24
32
32 float
64 long
and choose between
waf
ogg
flac
aiff
au
...
...
templates are possible. like
cd, adat, lofi, hifi, dont know, what ever.
available format options with libsnd file.
SF_FORMAT_WAV = 0x010000, /* Microsoft WAV format (little
endian). */
SF_FORMAT_AIFF = 0x020000, /* Apple/SGI AIFF format (big
endian). */
SF_FORMAT_AU = 0x030000, /* Sun/NeXT AU format (big
endian). */
SF_FORMAT_RAW = 0x040000, /* RAW PCM data. */
SF_FORMAT_PAF = 0x050000, /* Ensoniq PARIS file format.
*/
SF_FORMAT_SVX = 0x060000, /* Amiga IFF / SVX8 / SV16
format. */
SF_FORMAT_NIST = 0x070000, /* Sphere NIST format. */
SF_FORMAT_VOC = 0x080000, /* VOC files. */
SF_FORMAT_IRCAM = 0x0A0000, /* Berkeley/IRCAM/CARL */
SF_FORMAT_W64 = 0x0B0000, /* Sonic Foundry's 64 bit
RIFF/WAV */
SF_FORMAT_MAT4 = 0x0C0000, /* Matlab (tm) V4.2 / GNU
Octave 2.0 */
SF_FORMAT_MAT5 = 0x0D0000, /* Matlab (tm) V5.0 / GNU
Octave 2.1 */
SF_FORMAT_PVF = 0x0E0000, /* Portable Voice Format */
SF_FORMAT_XI = 0x0F0000, /* Fasttracker 2 Extended
Instrument */
SF_FORMAT_HTK = 0x100000, /* HMM Tool Kit format */
SF_FORMAT_SDS = 0x110000, /* Midi Sample Dump Standard */
SF_FORMAT_AVR = 0x120000, /* Audio Visual Research */
SF_FORMAT_WAVEX = 0x130000, /* MS WAVE with WAVEFORMATEX */
SF_FORMAT_SD2 = 0x160000, /* Sound Designer 2 */
SF_FORMAT_FLAC = 0x170000, /* FLAC lossless file format */
SF_FORMAT_CAF = 0x180000, /* Core Audio File format */
/* Subtypes from here on. */
SF_FORMAT_PCM_S8 = 0x0001, /* Signed 8 bit data */
SF_FORMAT_PCM_16 = 0x0002, /* Signed 16 bit data */
SF_FORMAT_PCM_24 = 0x0003, /* Signed 24 bit data */
SF_FORMAT_PCM_32 = 0x0004, /* Signed 32 bit data */
SF_FORMAT_PCM_U8 = 0x0005, /* Unsigned 8 bit data (WAV
and RAW only) */
SF_FORMAT_FLOAT = 0x0006, /* 32 bit float data */
SF_FORMAT_DOUBLE = 0x0007, /* 64 bit float data */
SF_FORMAT_ULAW = 0x0010, /* U-Law encoded. */
SF_FORMAT_ALAW = 0x0011, /* A-Law encoded. */
SF_FORMAT_IMA_ADPCM = 0x0012, /* IMA ADPCM. */
SF_FORMAT_MS_ADPCM = 0x0013, /* Microsoft ADPCM. */
SF_FORMAT_GSM610 = 0x0020, /* GSM 6.10 encoding. */
SF_FORMAT_VOX_ADPCM = 0x0021, /* Oki Dialogic ADPCM
encoding. */
SF_FORMAT_G721_32 = 0x0030, /* 32kbs G721 ADPCM encoding.
*/
SF_FORMAT_G723_24 = 0x0031, /* 24kbs G723 ADPCM encoding.
*/
SF_FORMAT_G723_40 = 0x0032, /* 40kbs G723 ADPCM encoding.
*/
SF_FORMAT_DWVW_12 = 0x0040, /* 12 bit Delta Width Variable
Word encoding. */
SF_FORMAT_DWVW_16 = 0x0041, /* 16 bit Delta Width Variable
Word encoding. */
SF_FORMAT_DWVW_24 = 0x0042, /* 24 bit Delta Width Variable
Word encoding. */
SF_FORMAT_DWVW_N = 0x0043, /* N bit Delta Width Variable
Word encoding. */
SF_FORMAT_DPCM_8 = 0x0050, /* 8 bit differential PCM (XI
only) */
SF_FORMAT_DPCM_16 = 0x0051, /* 16 bit differential PCM (XI
only) */
/* Endian-ness options. */
SF_ENDIAN_FILE = 0x00000000, /* Default file endian-ness. */
SF_ENDIAN_LITTLE = 0x10000000, /* Force little endian-ness. */
SF_ENDIAN_BIG = 0x20000000, /* Force big endian-ness. */
SF_ENDIAN_CPU = 0x30000000, /* Force CPU endian-ness. */
SF_FORMAT_SUBMASK = 0x0000FFFF,
SF_FORMAT_TYPEMASK = 0x0FFF0000,
SF_FORMAT_ENDMASK = 0x30000000
not listed here,
but ogg format is also since version 1.0.18 available.
also the export dialog works a bit unclear. imo we don't need this dialog. we
can open directly a qfiledialog to edit path and filename. filtersettings in
this dialog allow to choose the file extension. this set the format e.g aiff.
after qfiledialog accept the dialog there will open a small dialog to set
extensions/format settings dependent from the format which is in use. this
prevent users to configure to much settings right.
greetings wolke
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