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/*
* Copyright (C) 2018 Metrological Group B.V.
* Copyright (C) 2018, 2020 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#if USE(GSTREAMER)
#include "AudioStreamDescription.h"
#include "GStreamerCommon.h"
#include <gst/audio/audio.h>
namespace WebCore {
class GStreamerAudioStreamDescription final: public AudioStreamDescription {
public:
GStreamerAudioStreamDescription(GstAudioInfo&& info)
: m_info(WTFMove(info))
{
}
GStreamerAudioStreamDescription(const GstAudioInfo& info)
: m_info(info)
{
}
GStreamerAudioStreamDescription(GstAudioInfo* info)
: m_info(*info)
{
}
GStreamerAudioStreamDescription()
{
gst_audio_info_init(&m_info);
}
~GStreamerAudioStreamDescription() = default;
const PlatformDescription& platformDescription() const
{
m_platformDescription = { PlatformDescription::GStreamerAudioStreamDescription, reinterpret_cast<const AudioStreamBasicDescription*>(&m_info) };
return m_platformDescription;
}
PCMFormat format() const final
{
switch (GST_AUDIO_INFO_FORMAT(&m_info)) {
case GST_AUDIO_FORMAT_S16LE:
case GST_AUDIO_FORMAT_S16BE:
return Int16;
case GST_AUDIO_FORMAT_S32LE:
case GST_AUDIO_FORMAT_S32BE:
return Int32;
case GST_AUDIO_FORMAT_F32LE:
case GST_AUDIO_FORMAT_F32BE:
return Float32;
case GST_AUDIO_FORMAT_F64LE:
case GST_AUDIO_FORMAT_F64BE:
return Float64;
default:
break;
}
return None;
}
double sampleRate() const final { return GST_AUDIO_INFO_RATE(&m_info); }
bool isPCM() const final { return format() != None; }
bool isInterleaved() const final { return GST_AUDIO_INFO_LAYOUT(&m_info) == GST_AUDIO_LAYOUT_INTERLEAVED; }
bool isSignedInteger() const final { return GST_AUDIO_INFO_IS_INTEGER(&m_info); }
bool isNativeEndian() const final { return GST_AUDIO_INFO_ENDIANNESS(&m_info) == G_BYTE_ORDER; }
bool isFloat() const final { return GST_AUDIO_INFO_IS_FLOAT(&m_info); }
int bytesPerFrame() { return GST_AUDIO_INFO_BPF(&m_info); }
uint32_t numberOfInterleavedChannels() const final { return isInterleaved() ? GST_AUDIO_INFO_CHANNELS(&m_info) : TRUE; }
uint32_t numberOfChannelStreams() const final { return GST_AUDIO_INFO_CHANNELS(&m_info); }
uint32_t numberOfChannels() const final { return GST_AUDIO_INFO_CHANNELS(&m_info); }
uint32_t sampleWordSize() const final { return GST_AUDIO_INFO_BPS(&m_info); }
bool operator==(const GStreamerAudioStreamDescription& other) { return gst_audio_info_is_equal(&m_info, &other.m_info); }
const GRefPtr<GstCaps>& caps()
{
if (!m_caps)
m_caps = adoptGRef(gst_audio_info_to_caps(&m_info));
return m_caps;
}
const GstAudioInfo& getInfo() const { return m_info; }
private:
GstAudioInfo m_info;
GRefPtr<GstCaps> m_caps;
mutable PlatformDescription m_platformDescription;
};
} // WebCore
#endif // USE(GSTREAMER)
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