Remove the DirectShow backend

It's been deprecated by Microsoft since quite some time.
We should only have one backend on Windows, and then WMF
seems to be the correct one. WMF is missing features
like Camera, so some additional implementation work on
WMF will be required.

Change-Id: I5c3db4020b130efa78575c9da116a8ae6c34f7a1
Reviewed-by: Doris Verria <doris.verria@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 0 insertions, 397 deletions

diff --git a/src/plugins/directshow/player/directshowplayercontrol.cpp b/src/plugins/directshow/player/directshowplayercontrol.cpp
deleted file mode 100644
index 50e8d6421..000000000
--- a/src/plugins/directshow/player/directshowplayercontrol.cpp
+++ /dev/null
@@ -1,397 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** 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 The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <dshow.h>
-
-#include "directshowplayercontrol.h"
-
-#include "directshowplayerservice.h"
-
-#include <QtCore/qcoreapplication.h>
-#include <QtCore/qmath.h>
-#include <qaudio.h>
-
-DirectShowPlayerControl::DirectShowPlayerControl(DirectShowPlayerService *service, QObject *parent)
-    : QMediaPlayerControl(parent)
-    , m_service(service)
-{
-}
-
-DirectShowPlayerControl::~DirectShowPlayerControl()
-{
-    if (m_audio)
-        m_audio->Release();
-}
-
-QMediaPlayer::State DirectShowPlayerControl::state() const
-{
-    return m_state;
-}
-
-QMediaPlayer::MediaStatus DirectShowPlayerControl::mediaStatus() const
-{
-    return m_status;
-}
-
-qint64 DirectShowPlayerControl::duration() const
-{
-    return m_duration;
-}
-
-qint64 DirectShowPlayerControl::position() const
-{
-    if (m_pendingPosition != -1)
-        return m_pendingPosition;
-
-    return m_service->position();
-}
-
-void DirectShowPlayerControl::setPosition(qint64 position)
-{
-    if (m_status == QMediaPlayer::EndOfMedia) {
-        m_status = QMediaPlayer::LoadedMedia;
-        emit mediaStatusChanged(m_status);
-    }
-
-    if (m_state == QMediaPlayer::StoppedState) {
-        if (m_pendingPosition != position) {
-            m_pendingPosition = position;
-            emit positionChanged(m_pendingPosition);
-        }
-        return;
-    }
-
-    m_service->seek(position);
-    m_pendingPosition = -1;
-}
-
-int DirectShowPlayerControl::volume() const
-{
-    return m_volume;
-}
-
-void DirectShowPlayerControl::setVolume(int volume)
-{
-    int boundedVolume = qBound(0, volume, 100);
-
-    if (m_volume == boundedVolume)
-        return;
-
-    m_volume = boundedVolume;
-
-    if (!m_muted)
-        setVolumeHelper(m_volume);
-
-    emit volumeChanged(m_volume);
-}
-
-bool DirectShowPlayerControl::isMuted() const
-{
-    return m_muted;
-}
-
-void DirectShowPlayerControl::setMuted(bool muted)
-{
-    if (m_muted == muted)
-        return;
-
-    m_muted = muted;
-
-    setVolumeHelper(m_muted ? 0 : m_volume);
-
-    emit mutedChanged(m_muted);
-}
-
-void DirectShowPlayerControl::setVolumeHelper(int volume)
-{
-    if (!m_audio)
-        return;
-
-    long adjustedVolume;
-    if (volume == 0) {
-        adjustedVolume = -10000; // -100 dB (lower limit for put_Volume())
-    } else if (volume == 100) {
-        adjustedVolume = 0;
-    } else {
-        adjustedVolume = QAudio::convertVolume(volume / qreal(100),
-                                               QAudio::LinearVolumeScale,
-                                               QAudio::DecibelVolumeScale) * 100;
-    }
-
-    m_audio->put_Volume(adjustedVolume);
-}
-
-int DirectShowPlayerControl::bufferStatus() const
-{
-    return m_service->bufferStatus();
-}
-
-bool DirectShowPlayerControl::isAudioAvailable() const
-{
-    return m_streamTypes & DirectShowPlayerService::AudioStream;
-}
-
-bool DirectShowPlayerControl::isVideoAvailable() const
-{
-    return m_streamTypes & DirectShowPlayerService::VideoStream;
-}
-
-bool DirectShowPlayerControl::isSeekable() const
-{
-    return m_seekable;
-}
-
-QMediaTimeRange DirectShowPlayerControl::availablePlaybackRanges() const
-{
-    return m_service->availablePlaybackRanges();
-}
-
-qreal DirectShowPlayerControl::playbackRate() const
-{
-    return m_playbackRate;
-}
-
-void DirectShowPlayerControl::setPlaybackRate(qreal rate)
-{
-    if (!qFuzzyCompare(m_playbackRate, rate)) {
-        m_service->setRate(rate);
-
-        emit playbackRateChanged(m_playbackRate = rate);
-    }
-}
-
-QMediaContent DirectShowPlayerControl::media() const
-{
-    return m_media;
-}
-
-const QIODevice *DirectShowPlayerControl::mediaStream() const
-{
-    return m_stream;
-}
-
-void DirectShowPlayerControl::setMedia(const QMediaContent &media, QIODevice *stream)
-{
-    if (m_media == media && m_stream == stream)
-        return;
-
-    m_pendingPosition = -1;
-    m_emitPosition = -1;
-
-    m_media = media;
-    m_stream = stream;
-
-    m_updateProperties &= PlaybackRateProperty;
-
-    m_service->load(media, stream);
-
-    emit mediaChanged(m_media);
-    emitPropertyChanges();
-}
-
-void DirectShowPlayerControl::play()
-{
-    playOrPause(QMediaPlayer::PlayingState);
-}
-
-void DirectShowPlayerControl::pause()
-{
-    playOrPause(QMediaPlayer::PausedState);
-}
-
-void DirectShowPlayerControl::playOrPause(QMediaPlayer::State state)
-{
-    if (m_status == QMediaPlayer::NoMedia || state == QMediaPlayer::StoppedState)
-        return;
-    if (m_status == QMediaPlayer::InvalidMedia) {
-        setMedia(m_media, m_stream);
-        if (m_error != QMediaPlayer::NoError)
-            return;
-    }
-
-    m_emitPosition = -1;
-    m_state = state;
-
-    if (m_pendingPosition != -1)
-        setPosition(m_pendingPosition);
-
-    if (state == QMediaPlayer::PausedState)
-        m_service->pause();
-    else
-        m_service->play();
-
-    emit stateChanged(m_state);
-}
-
-void DirectShowPlayerControl::stop()
-{
-    m_emitPosition = -1;
-    m_service->stop();
-    emit stateChanged(m_state = QMediaPlayer::StoppedState);
-}
-
-void DirectShowPlayerControl::customEvent(QEvent *event)
-{
-    if (event->type() == QEvent::Type(PropertiesChanged)) {
-        emitPropertyChanges();
-
-        event->accept();
-    } else {
-        QMediaPlayerControl::customEvent(event);
-    }
-}
-
-void DirectShowPlayerControl::emitPropertyChanges()
-{
-    int properties = m_updateProperties;
-    m_updateProperties = 0;
-
-    if (properties & StatusProperty)
-        emit mediaStatusChanged(m_status);
-
-    if ((properties & ErrorProperty) && m_error != QMediaPlayer::NoError)
-        emit error(m_error, m_errorString);
-
-    if (properties & PlaybackRateProperty)
-        emit playbackRateChanged(m_playbackRate);
-
-    if (properties & StreamTypesProperty) {
-        emit audioAvailableChanged(m_streamTypes & DirectShowPlayerService::AudioStream);
-        emit videoAvailableChanged(m_streamTypes & DirectShowPlayerService::VideoStream);
-    }
-
-    if (properties & PositionProperty && m_emitPosition != -1)
-        emit positionChanged(m_emitPosition);
-
-    if (properties & DurationProperty)
-        emit durationChanged(m_duration);
-
-    if (properties & SeekableProperty)
-        emit seekableChanged(m_seekable);
-
-    if (properties & StateProperty)
-        emit stateChanged(m_state);
-}
-
-void DirectShowPlayerControl::scheduleUpdate(int properties)
-{
-    if (m_updateProperties == 0)
-        QCoreApplication::postEvent(this, new QEvent(QEvent::Type(PropertiesChanged)));
-
-    m_updateProperties |= properties;
-}
-
-void DirectShowPlayerControl::updateState(QMediaPlayer::State state)
-{
-    if (m_state != state) {
-        m_state = state;
-
-        scheduleUpdate(StateProperty);
-    }
-}
-
-void DirectShowPlayerControl::updateStatus(QMediaPlayer::MediaStatus status)
-{
-    if (m_status != status) {
-        m_status = status;
-
-        scheduleUpdate(StatusProperty);
-    }
-}
-
-void DirectShowPlayerControl::updateMediaInfo(qint64 duration, int streamTypes, bool seekable)
-{
-    int properties = 0;
-
-    if (m_duration != duration) {
-        m_duration = duration;
-
-        properties |= DurationProperty;
-    }
-    if (m_streamTypes != streamTypes) {
-        m_streamTypes = streamTypes;
-
-        properties |= StreamTypesProperty;
-    }
-
-    if (m_seekable != seekable) {
-        m_seekable = seekable;
-
-        properties |= SeekableProperty;
-    }
-
-    if (properties != 0)
-        scheduleUpdate(properties);
-}
-
-void DirectShowPlayerControl::updatePlaybackRate(qreal rate)
-{
-    if (!qFuzzyCompare(m_playbackRate, rate)) {
-        m_playbackRate = rate;
-
-        scheduleUpdate(PlaybackRateProperty);
-    }
-}
-
-void DirectShowPlayerControl::updateAudioOutput(IBaseFilter *filter)
-{
-    if (m_audio)
-        m_audio->Release();
-
-    m_audio = com_cast<IBasicAudio>(filter, IID_IBasicAudio);
-    setVolumeHelper(m_muted ? 0 : m_volume);
-}
-
-void DirectShowPlayerControl::updateError(QMediaPlayer::Error error, const QString &errorString)
-{
-    m_error = error;
-    m_errorString = errorString;
-
-    if (m_error != QMediaPlayer::NoError)
-        scheduleUpdate(ErrorProperty);
-}
-
-void DirectShowPlayerControl::updatePosition(qint64 position)
-{
-    if (m_emitPosition != position) {
-        m_emitPosition = position;
-
-        scheduleUpdate(PositionProperty);
-    }
-}