diff options
Diffstat (limited to 'src/plugins/qnx-audio/audio/qnxaudioutils.cpp')
-rw-r--r-- | src/plugins/qnx-audio/audio/qnxaudioutils.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/plugins/qnx-audio/audio/qnxaudioutils.cpp b/src/plugins/qnx-audio/audio/qnxaudioutils.cpp new file mode 100644 index 000000000..d6400c2b1 --- /dev/null +++ b/src/plugins/qnx-audio/audio/qnxaudioutils.cpp @@ -0,0 +1,130 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Research In Motion +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qnxaudioutils.h" + +QT_BEGIN_NAMESPACE + +snd_pcm_channel_params_t QnxAudioUtils::formatToChannelParams(const QAudioFormat &format, QAudio::Mode mode, int fragmentSize) +{ + snd_pcm_channel_params_t params; + memset(¶ms, 0, sizeof(params)); + params.channel = (mode == QAudio::AudioOutput) ? SND_PCM_CHANNEL_PLAYBACK : SND_PCM_CHANNEL_CAPTURE; + params.mode = SND_PCM_MODE_BLOCK; + params.start_mode = SND_PCM_START_DATA; + params.stop_mode = SND_PCM_STOP_ROLLOVER; + params.buf.block.frag_size = fragmentSize; + params.buf.block.frags_min = 1; + params.buf.block.frags_max = 1; + strcpy(params.sw_mixer_subchn_name, "QAudio Channel"); + + params.format.interleave = 1; + params.format.rate = format.sampleRate(); + params.format.voices = format.channelCount(); + + switch (format.sampleSize()) { + case 8: + switch (format.sampleType()) { + case QAudioFormat::SignedInt: + params.format.format = SND_PCM_SFMT_S8; + break; + case QAudioFormat::UnSignedInt: + params.format.format = SND_PCM_SFMT_U8; + break; + default: + break; + } + break; + + case 16: + switch (format.sampleType()) { + case QAudioFormat::SignedInt: + if (format.byteOrder() == QAudioFormat::LittleEndian) { + params.format.format = SND_PCM_SFMT_S16_LE; + } else { + params.format.format = SND_PCM_SFMT_S16_BE; + } + break; + case QAudioFormat::UnSignedInt: + if (format.byteOrder() == QAudioFormat::LittleEndian) { + params.format.format = SND_PCM_SFMT_U16_LE; + } else { + params.format.format = SND_PCM_SFMT_U16_BE; + } + break; + default: + break; + } + break; + + case 32: + switch (format.sampleType()) { + case QAudioFormat::SignedInt: + if (format.byteOrder() == QAudioFormat::LittleEndian) { + params.format.format = SND_PCM_SFMT_S32_LE; + } else { + params.format.format = SND_PCM_SFMT_S32_BE; + } + break; + case QAudioFormat::UnSignedInt: + if (format.byteOrder() == QAudioFormat::LittleEndian) { + params.format.format = SND_PCM_SFMT_U32_LE; + } else { + params.format.format = SND_PCM_SFMT_U32_BE; + } + break; + case QAudioFormat::Float: + if (format.byteOrder() == QAudioFormat::LittleEndian) { + params.format.format = SND_PCM_SFMT_FLOAT_LE; + } else { + params.format.format = SND_PCM_SFMT_FLOAT_BE; + } + break; + default: + break; + } + break; + } + + return params; +} + +QT_END_NAMESPACE |