PlayBack-OSS.cpp File Reference

#include "config.h"
#include <errno.h>
#include <fcntl.h>
#include <math.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <QDir>
#include <QFile>
#include <QLatin1Char>
#include <KLocalizedString>
#include "libkwave/ByteOrder.h"
#include "libkwave/Compression.h"
#include "libkwave/SampleEncoderLinear.h"
#include "libkwave/String.h"
#include "libkwave/Utils.h"
#include "libkwave/memcpy.h"
#include "PlayBack-OSS.h"

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Macros
#define	MIN_PLAYBACK_BUFFER   8
#define	MAX_PLAYBACK_BUFFER   16
#define	MAX_CHANNELS   7
#define	AFMT_S24_LE   0x00008000
#define	AFMT_S24_BE   0x00010000
#define	AFMT_S32_LE   0x00001000
#define	AFMT_S32_BE   0x00002000
#define	SNDCTL_DSP_SPEED   SOUND_PCM_WRITE_RATE
#define	SNDCTL_DSP_CHANNELS   SOUND_PCM_WRITE_CHANNELS
#define	SOUND_PCM_SETFMT   SOUND_PCM_WRITE_BITS
#define	SNDCTL_DSP_SETFMT   SOUND_PCM_SETFMT

Functions
static bool	addIfExists (QStringList &list, const QString &name)
static void	scanFiles (QStringList &list, const QString &dirname, const QString &mask)
static void	scanDirectory (QStringList &list, const QString &dir)

Macro Definition Documentation

AFMT_S24_BE

#define AFMT_S24_BE   0x00010000

Definition at line 61 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::format2mode().

AFMT_S24_LE

#define AFMT_S24_LE   0x00008000

Definition at line 58 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::format2mode(), and Kwave::PlayBackOSS::open().

AFMT_S32_BE

#define AFMT_S32_BE   0x00002000

Definition at line 67 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::format2mode().

AFMT_S32_LE

#define AFMT_S32_LE   0x00001000

Definition at line 64 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::format2mode(), and Kwave::PlayBackOSS::open().

MAX_CHANNELS

#define MAX_CHANNELS   7

highest available number of channels

Definition at line 53 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::detectChannels().

MAX_PLAYBACK_BUFFER

#define MAX_PLAYBACK_BUFFER   16

use at most 2^16 = 65536 bytes for playback buffer !!!

Definition at line 50 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::open().

MIN_PLAYBACK_BUFFER

#define MIN_PLAYBACK_BUFFER   8

use at least 2^8 = 256 bytes for playback buffer !!!

Definition at line 47 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::open().

SNDCTL_DSP_CHANNELS

#define SNDCTL_DSP_CHANNELS   SOUND_PCM_WRITE_CHANNELS

Definition at line 75 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::detectChannels(), and Kwave::PlayBackOSS::open().

SNDCTL_DSP_SETFMT

#define SNDCTL_DSP_SETFMT   SOUND_PCM_SETFMT

Definition at line 83 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::open().

SNDCTL_DSP_SPEED

#define SNDCTL_DSP_SPEED   SOUND_PCM_WRITE_RATE

Definition at line 71 of file PlayBack-OSS.cpp.

Referenced by Kwave::PlayBackOSS::open().

SOUND_PCM_SETFMT

#define SOUND_PCM_SETFMT   SOUND_PCM_WRITE_BITS

Definition at line 79 of file PlayBack-OSS.cpp.

Function Documentation

addIfExists()

static bool addIfExists ( QStringList &  list, const QString &  name  )

static

Definition at line 325 of file PlayBack-OSS.cpp.

References _.

Referenced by scanFiles().

{
    QFile file;

    if (name.contains(_("%1"))) {
        // test for the name without suffix first
        addIfExists(list, name.arg(_("")));

        // loop over the list and try until a suffix does not exist
        for (unsigned int index=0; index < 64; index++)
            addIfExists(list, name.arg(index));
    } else {
        // check a single name
        file.setFileName(name);
        if (!file.exists())
            return false;

        if (!list.contains(name))
            list.append(name);
    }

    return true;
}

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scanDirectory()

static void scanDirectory ( QStringList &  list, const QString &  dir  )

static

Definition at line 369 of file PlayBack-OSS.cpp.

References _, and scanFiles().

Referenced by Kwave::PlayBackOSS::supportedDevices().

{
    scanFiles(list, dir, _("dsp*"));
    scanFiles(list, dir, _("*audio*"));
    scanFiles(list, dir, _("adsp*"));
    scanFiles(list, dir, _("dio*"));
    scanFiles(list, dir, _("pcm*"));
}

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scanFiles()

static void scanFiles ( QStringList &  list, const QString &  dirname, const QString &  mask  )

static

Definition at line 350 of file PlayBack-OSS.cpp.

References addIfExists().

Referenced by scanDirectory(), and Kwave::PlayBackOSS::supportedDevices().

{
    QStringList files;
    QDir dir;

    dir.setPath(dirname);
    dir.setNameFilters(mask.split(QLatin1Char(' ')));
    dir.setFilter(QDir::Files | QDir::Writable | QDir::System);
    dir.setSorting(QDir::Name);
    files = dir.entryList();

    for (QStringList::Iterator it=files.begin(); it != files.end(); ++it) {
        QString devicename = dirname + QDir::separator() + (*it);
        addIfExists(list, devicename);
    }
}

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