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| -rw-r--r-- | avmedia/source/macavf/player.mm | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/avmedia/source/macavf/player.mm b/avmedia/source/macavf/player.mm new file mode 100644 index 000000000..401cba74c --- /dev/null +++ b/avmedia/source/macavf/player.mm @@ -0,0 +1,359 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include "player.hxx" +#include "framegrabber.hxx" +#include "window.hxx" +#include <rtl/ref.hxx> + +#include <cmath> // for log10() + +using namespace ::com::sun::star; + +@implementation MacAVObserverObject + +- (void)observeValueForKeyPath:(NSString*)pKeyPath ofObject:(id)pObject change:(NSDictionary*)pChangeDict context:(void*)pContext +{ + (void) pObject; + (void) pChangeDict; + avmedia::macavf::MacAVObserverHandler* pHandler = static_cast<avmedia::macavf::MacAVObserverHandler*>(pContext); + pHandler->handleObservation( pKeyPath ); +} + +- (void)onNotification:(NSNotification*)pNotification +{ + NSString* pNoteName = [pNotification name]; + HandlersForObject::iterator it = maHandlersForObject.find( [pNotification object]); + if( it != maHandlersForObject.end() ) + (*it).second->handleObservation( pNoteName ); +} + +- (void)setHandlerForObject:(NSObject*)pObject handler:(avmedia::macavf::MacAVObserverHandler*)pHandler +{ + maHandlersForObject[ pObject] = pHandler; +} + +- (void)removeHandlerForObject:(NSObject*)pObject +{ + maHandlersForObject.erase( pObject); +} + +@end + + +namespace avmedia::macavf { + +MacAVObserverObject* MacAVObserverHandler::mpMacAVObserverObject = nullptr; + +MacAVObserverObject* MacAVObserverHandler::getObserver() +{ + if( !mpMacAVObserverObject) + { + mpMacAVObserverObject = [MacAVObserverObject alloc]; + [mpMacAVObserverObject retain]; + } + return mpMacAVObserverObject; +} + + +Player::Player() +: mpPlayer( nullptr ) +, mfUnmutedVolume( 0 ) +, mfStopTime( DBL_MAX ) +, mbMuted( false ) +, mbLooping( false ) +{} + + +Player::~Player() +{ + if( !mpPlayer ) + return; + // remove the observers + [mpPlayer removeObserver:getObserver() forKeyPath:@"currentItem.status"]; + AVPlayerItem* pOldPlayerItem = [mpPlayer currentItem]; + [[NSNotificationCenter defaultCenter] removeObserver:getObserver() + name:AVPlayerItemDidPlayToEndTimeNotification + object:pOldPlayerItem]; + [getObserver() removeHandlerForObject:pOldPlayerItem]; + // release the AVPlayer + CFRelease( mpPlayer ); +} + + +bool Player::handleObservation( NSString* pKeyPath ) +{ + if( [pKeyPath isEqualToString:AVPlayerItemDidPlayToEndTimeNotification]) + { + if( mbLooping ) + setMediaTime( 0.0); + } + return true; +} + + +bool Player::create( const OUString& rURL ) +{ + // get the media asset + NSString* aNSStr = [NSString stringWithCharacters:reinterpret_cast<unichar const *>(rURL.getStr()) length:rURL.getLength()]; + SAL_WNODEPRECATED_DECLARATIONS_PUSH + //TODO: 10.11 stringByAddingPercentEscapesUsingEncoding + NSURL* aNSURL = [NSURL URLWithString: [aNSStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; + SAL_WNODEPRECATED_DECLARATIONS_POP + // get the matching AVPlayerItem + AVPlayerItem* pPlayerItem = [AVPlayerItem playerItemWithURL:aNSURL]; + + // create or update the AVPlayer with the new AVPlayerItem + if( !mpPlayer ) + { + mpPlayer = [AVPlayer playerWithPlayerItem:pPlayerItem]; + CFRetain( mpPlayer ); + [mpPlayer setActionAtItemEnd:AVPlayerActionAtItemEndNone]; + } + else + { + // remove the obsoleted observers + AVPlayerItem* pOldPlayerItem = [mpPlayer currentItem]; + [mpPlayer removeObserver:getObserver() forKeyPath:@"currentItem.status"]; + [getObserver() removeHandlerForObject:pOldPlayerItem]; + [[NSNotificationCenter defaultCenter] removeObserver:getObserver() + name:AVPlayerItemDidPlayToEndTimeNotification + object:pOldPlayerItem]; + // replace the playeritem + [mpPlayer replaceCurrentItemWithPlayerItem:pPlayerItem]; + } + + // observe the status of the current player item + [mpPlayer addObserver:getObserver() forKeyPath:@"currentItem.status" options:0 context:this]; + + // observe playback-end needed for playback looping + [[NSNotificationCenter defaultCenter] addObserver:getObserver() + selector:@selector(onNotification:) + name:AVPlayerItemDidPlayToEndTimeNotification + object:pPlayerItem]; + [getObserver() setHandlerForObject:pPlayerItem handler:this]; + + return true; +} + + +void SAL_CALL Player::start() +{ + if( !mpPlayer ) + return; + + [mpPlayer play]; + // else // TODO: delay until it becomes ready +} + + +void SAL_CALL Player::stop() +{ + if( !mpPlayer ) + return; + const bool bPlaying = isPlaying(); + if( bPlaying ) + [mpPlayer pause]; +} + + +sal_Bool SAL_CALL Player::isPlaying() +{ + if( !mpPlayer ) + return false; + const float fRate = [mpPlayer rate]; + return (fRate != 0.0); +} + + +double SAL_CALL Player::getDuration() +{ + // slideshow checks for non-zero duration, so cheat here + double duration = 0.01; + + if( mpPlayer ) + { + AVPlayerItem* pItem = [mpPlayer currentItem]; + if( [pItem status] == AVPlayerItemStatusReadyToPlay ) + duration = CMTimeGetSeconds( [pItem duration] ); + else // fall back to AVAsset's best guess + duration = CMTimeGetSeconds( [[pItem asset] duration] ); + } + + return duration; +} + + +void SAL_CALL Player::setMediaTime( double fTime ) +{ + if( mpPlayer ) + [mpPlayer seekToTime: CMTimeMakeWithSeconds(fTime,1000) ]; +} + + +double SAL_CALL Player::getMediaTime() +{ + if( !mpPlayer ) + return 0.0; + + const double position = CMTimeGetSeconds( [mpPlayer currentTime] ); + if( position >= mfStopTime ) + if( isPlaying() ) + stop(); + + return position; +} + + +void Player::setStopTime( double fTime ) +{ + mfStopTime = fTime; +} + + +double Player::getStopTime() +{ + return mfStopTime; +} + + +void SAL_CALL Player::setPlaybackLoop( sal_Bool bSet ) +{ + mbLooping = bSet; +} + + +sal_Bool SAL_CALL Player::isPlaybackLoop() +{ + return mbLooping; +} + + +void SAL_CALL Player::setMute( sal_Bool bSet ) +{ + if( !mpPlayer ) + return; + + mbMuted = bSet; + [mpPlayer setMuted:mbMuted]; +} + + +sal_Bool SAL_CALL Player::isMute() +{ + return mbMuted; +} + + +void SAL_CALL Player::setVolumeDB( sal_Int16 nVolumeDB ) +{ + // -40dB <-> AVPlayer volume 0.0 + // 0dB <-> AVPlayer volume 1.0 + mfUnmutedVolume = (nVolumeDB <= -40) ? 0.0 : pow( 10.0, nVolumeDB / 20.0 ); + + // change volume + if( !mbMuted && mpPlayer ) + [mpPlayer setVolume:mfUnmutedVolume]; +} + + +sal_Int16 SAL_CALL Player::getVolumeDB() +{ + if( !mpPlayer ) + return 0; + + // get the actual volume + const float fVolume = [mpPlayer volume]; + + // convert into Decibel value + // -40dB <-> AVPlayer volume 0.0 + // 0dB <-> AVPlayer volume 1.0 + const int nVolumeDB = (fVolume <= 0) ? -40 : lrint( 20.0*log10(fVolume)); + + return static_cast<sal_Int16>(nVolumeDB); +} + + +awt::Size SAL_CALL Player::getPreferredPlayerWindowSize() +{ + awt::Size aSize( 0, 0 ); // default size + + AVAsset* pMovie = [[mpPlayer currentItem] asset]; + NSArray* pVideoTracks = [pMovie tracksWithMediaType:AVMediaTypeVideo]; + if ([pVideoTracks count] > 0) + { + AVAssetTrack* pFirstVideoTrack = static_cast<AVAssetTrack*>([pVideoTracks objectAtIndex:0]); + const CGSize aPrefSize = [pFirstVideoTrack naturalSize]; + aSize = awt::Size( aPrefSize.width, aPrefSize.height ); + } + + return aSize; +} + + +uno::Reference< ::media::XPlayerWindow > SAL_CALL Player::createPlayerWindow( const uno::Sequence< uno::Any >& aArguments ) +{ + // get the preferred window size + const awt::Size aSize( getPreferredPlayerWindowSize() ); + + // get the parent view + sal_IntPtr nNSViewPtr = 0; + aArguments[0] >>= nNSViewPtr; + NSView* pParentView = reinterpret_cast<NSView*>(nNSViewPtr); + + // check the window parameters + if( (aSize.Width <= 0) || (aSize.Height <= 0) || (pParentView == nullptr) ) + return {}; + + // create the window + return new ::avmedia::macavf::Window( *this, pParentView ); +} + + +uno::Reference< media::XFrameGrabber > SAL_CALL Player::createFrameGrabber() +{ + rtl::Reference<FrameGrabber> pGrabber = new FrameGrabber(); + AVAsset* pMovie = [[mpPlayer currentItem] asset]; + if( !pGrabber->create( pMovie ) ) + return {}; + + return pGrabber; +} + + +OUString SAL_CALL Player::getImplementationName( ) +{ + return AVMEDIA_MACAVF_PLAYER_IMPLEMENTATIONNAME; +} + + +sal_Bool SAL_CALL Player::supportsService( const OUString& ServiceName ) +{ + return ServiceName == AVMEDIA_MACAVF_PLAYER_SERVICENAME; +} + + +uno::Sequence< OUString > SAL_CALL Player::getSupportedServiceNames( ) +{ + return { AVMEDIA_MACAVF_PLAYER_SERVICENAME }; +} + +} // namespace avmedia::macavf + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |