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/*
* Copyright (C) 2012, 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#if ENABLE(VIDEO) && USE(AVFOUNDATION) && HAVE(AVFOUNDATION_MEDIA_SELECTION_GROUP)
#import "InbandTextTrackPrivateAVFObjC.h"
#import "BlockExceptions.h"
#import "FloatConversion.h"
#import "InbandTextTrackPrivate.h"
#import "InbandTextTrackPrivateAVF.h"
#import "Logging.h"
#import "SoftLinking.h"
#import <AVFoundation/AVFoundation.h>
#import <objc/runtime.h>
SOFT_LINK_FRAMEWORK_OPTIONAL(AVFoundation)
#define AVPlayer getAVPlayerClass()
#define AVPlayerItem getAVPlayerItemClass()
SOFT_LINK_CLASS(AVFoundation, AVPlayer)
SOFT_LINK_CLASS(AVFoundation, AVPlayerItem)
SOFT_LINK_CLASS(AVFoundation, AVMetadataItem)
SOFT_LINK_CLASS(AVFoundation, AVPlayerItemLegibleOutput)
#define AVMediaCharacteristicVisual getAVMediaCharacteristicVisual()
#define AVMediaCharacteristicAudible getAVMediaCharacteristicAudible()
#define AVMediaTypeClosedCaption getAVMediaTypeClosedCaption()
#define AVMediaCharacteristicContainsOnlyForcedSubtitles getAVMediaCharacteristicContainsOnlyForcedSubtitles()
#define AVMediaCharacteristicIsMainProgramContent getAVMediaCharacteristicIsMainProgramContent()
#define AVMediaCharacteristicEasyToRead getAVMediaCharacteristicEasyToRead()
SOFT_LINK_POINTER(AVFoundation, AVMediaTypeClosedCaption, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMediaCharacteristicLegible, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMetadataCommonKeyTitle, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMetadataKeySpaceCommon, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMediaTypeSubtitle, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMediaCharacteristicTranscribesSpokenDialogForAccessibility, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMediaCharacteristicDescribesMusicAndSoundForAccessibility, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMediaCharacteristicContainsOnlyForcedSubtitles, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMediaCharacteristicIsMainProgramContent, NSString *)
SOFT_LINK_POINTER(AVFoundation, AVMediaCharacteristicEasyToRead, NSString *)
#define AVMetadataItem getAVMetadataItemClass()
#define AVPlayerItemLegibleOutput getAVPlayerItemLegibleOutputClass()
#define AVMediaCharacteristicLegible getAVMediaCharacteristicLegible()
#define AVMetadataCommonKeyTitle getAVMetadataCommonKeyTitle()
#define AVMetadataKeySpaceCommon getAVMetadataKeySpaceCommon()
#define AVMediaTypeSubtitle getAVMediaTypeSubtitle()
#define AVMediaCharacteristicTranscribesSpokenDialogForAccessibility getAVMediaCharacteristicTranscribesSpokenDialogForAccessibility()
#define AVMediaCharacteristicDescribesMusicAndSoundForAccessibility getAVMediaCharacteristicDescribesMusicAndSoundForAccessibility()
using namespace WebCore;
using namespace std;
namespace WebCore {
InbandTextTrackPrivateAVFObjC::InbandTextTrackPrivateAVFObjC(AVFInbandTrackParent* player, AVMediaSelectionOption *selection)
: InbandTextTrackPrivateAVF(player)
, m_mediaSelectionOption(selection)
{
}
void InbandTextTrackPrivateAVFObjC::disconnect()
{
m_mediaSelectionOption = 0;
InbandTextTrackPrivateAVF::disconnect();
}
InbandTextTrackPrivate::Kind InbandTextTrackPrivateAVFObjC::kind() const
{
if (!m_mediaSelectionOption)
return InbandTextTrackPrivate::None;
NSString *mediaType = [m_mediaSelectionOption mediaType];
if ([mediaType isEqualToString:AVMediaTypeClosedCaption])
return InbandTextTrackPrivate::Captions;
if ([mediaType isEqualToString:AVMediaTypeSubtitle]) {
if ([m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicContainsOnlyForcedSubtitles])
return InbandTextTrackPrivate::Forced;
// An "SDH" track is a subtitle track created for the deaf or hard-of-hearing. "captions" in WebVTT are
// "labeled as appropriate for the hard-of-hearing", so tag SDH sutitles as "captions".
if ([m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicTranscribesSpokenDialogForAccessibility])
return InbandTextTrackPrivate::Captions;
if ([m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicDescribesMusicAndSoundForAccessibility])
return InbandTextTrackPrivate::Captions;
return InbandTextTrackPrivate::Subtitles;
}
return InbandTextTrackPrivate::Captions;
}
bool InbandTextTrackPrivateAVFObjC::isClosedCaptions() const
{
if (!m_mediaSelectionOption)
return false;
return [[m_mediaSelectionOption mediaType] isEqualToString:AVMediaTypeClosedCaption];
}
bool InbandTextTrackPrivateAVFObjC::isSDH() const
{
if (!m_mediaSelectionOption)
return false;
if (![[m_mediaSelectionOption mediaType] isEqualToString:AVMediaTypeSubtitle])
return false;
if ([m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicTranscribesSpokenDialogForAccessibility] && [m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicDescribesMusicAndSoundForAccessibility])
return true;
return false;
}
bool InbandTextTrackPrivateAVFObjC::containsOnlyForcedSubtitles() const
{
if (!m_mediaSelectionOption)
return false;
return [m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicContainsOnlyForcedSubtitles];
}
bool InbandTextTrackPrivateAVFObjC::isMainProgramContent() const
{
if (!m_mediaSelectionOption)
return false;
return [m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicIsMainProgramContent];
}
bool InbandTextTrackPrivateAVFObjC::isEasyToRead() const
{
if (!m_mediaSelectionOption)
return false;
return [m_mediaSelectionOption hasMediaCharacteristic:AVMediaCharacteristicEasyToRead];
}
AtomicString InbandTextTrackPrivateAVFObjC::label() const
{
if (!m_mediaSelectionOption)
return emptyAtom;
NSString *title = 0;
NSArray *titles = [AVMetadataItem metadataItemsFromArray:[m_mediaSelectionOption.get() commonMetadata] withKey:AVMetadataCommonKeyTitle keySpace:AVMetadataKeySpaceCommon];
if ([titles count]) {
// If possible, return a title in one of the user's preferred languages.
NSArray *titlesForPreferredLanguages = [AVMetadataItem metadataItemsFromArray:titles filteredAndSortedAccordingToPreferredLanguages:[NSLocale preferredLanguages]];
if ([titlesForPreferredLanguages count])
title = [[titlesForPreferredLanguages objectAtIndex:0] stringValue];
if (!title)
title = [[titles objectAtIndex:0] stringValue];
}
return title ? AtomicString(title) : emptyAtom;
}
AtomicString InbandTextTrackPrivateAVFObjC::language() const
{
if (!m_mediaSelectionOption)
return emptyAtom;
return [[m_mediaSelectionOption.get() locale] localeIdentifier];
}
bool InbandTextTrackPrivateAVFObjC::isDefault() const
{
return false;
}
} // namespace WebCore
#endif
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