nextcloud/apps/media/js/jQuery.jPlayer.2.1.0.source/happyworm/jPlayer/JplayerMp4.as

414 lines
15 KiB
ActionScript

/*
* jPlayer Plugin for jQuery JavaScript Library
* http://www.happyworm.com/jquery/jplayer
*
* Copyright (c) 2009 - 2011 Happyworm Ltd
* Dual licensed under the MIT and GPL licenses.
* - http://www.opensource.org/licenses/mit-license.php
* - http://www.gnu.org/copyleft/gpl.html
*
* Author: Mark J Panaghiston
* Date: 7th August 2011
*/
package happyworm.jPlayer {
import flash.display.Sprite;
import flash.media.Video;
import flash.media.SoundTransform;
import flash.net.NetConnection;
import flash.net.NetStream;
import flash.utils.Timer;
import flash.events.NetStatusEvent;
import flash.events.SecurityErrorEvent;
import flash.events.TimerEvent;
public class JplayerMp4 extends Sprite {
public var myVideo:Video = new Video();
private var myConnection:NetConnection;
private var myStream:NetStream;
private var myTransform:SoundTransform = new SoundTransform();
public var myStatus:JplayerStatus = new JplayerStatus();
private var timeUpdateTimer:Timer = new Timer(250, 0); // Matched to HTML event freq
private var progressTimer:Timer = new Timer(250, 0); // Matched to HTML event freq
private var seekingTimer:Timer = new Timer(100, 0); // Internal: How often seeking is checked to see if it is over.
public function JplayerMp4(volume:Number) {
myConnection = new NetConnection();
myConnection.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
myConnection.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
myVideo.smoothing = true;
this.addChild(myVideo);
timeUpdateTimer.addEventListener(TimerEvent.TIMER, timeUpdateHandler);
progressTimer.addEventListener(TimerEvent.TIMER, progressHandler);
seekingTimer.addEventListener(TimerEvent.TIMER, seekingHandler);
myStatus.volume = volume;
}
private function progressUpdates(active:Boolean):void {
if(active) {
progressTimer.start();
} else {
progressTimer.stop();
}
}
private function progressHandler(e:TimerEvent):void {
if(myStatus.isLoading) {
if(getLoadRatio() == 1) { // Close as can get to a loadComplete event since client.onPlayStatus only works with FMS
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "progressHandler: loadComplete"));
myStatus.loaded();
progressUpdates(false);
}
}
progressEvent();
}
private function progressEvent():void {
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "progressEvent:"));
updateStatusValues();
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_PROGRESS, myStatus));
}
private function timeUpdates(active:Boolean):void {
if(active) {
timeUpdateTimer.start();
} else {
timeUpdateTimer.stop();
}
}
private function timeUpdateHandler(e:TimerEvent):void {
timeUpdateEvent();
}
private function timeUpdateEvent():void {
updateStatusValues();
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_TIMEUPDATE, myStatus));
}
private function seeking(active:Boolean):void {
if(active) {
if(!myStatus.isSeeking) {
seekingEvent();
}
seekingTimer.start();
} else {
if(myStatus.isSeeking) {
seekedEvent();
}
seekingTimer.stop();
}
}
private function seekingHandler(e:TimerEvent):void {
if(getSeekTimeRatio() <= getLoadRatio()) {
seeking(false);
if(myStatus.playOnSeek) {
myStatus.playOnSeek = false; // Capture the flag.
play(myStatus.pausePosition); // Must pass time or the seek time is never set.
} else {
pause(myStatus.pausePosition); // Must pass time or the stream.time is read.
}
} else if(myStatus.metaDataReady && myStatus.pausePosition > myStatus.duration) {
// Illegal seek time
seeking(false);
pause(0);
}
}
private function seekingEvent():void {
myStatus.isSeeking = true;
updateStatusValues();
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_SEEKING, myStatus));
}
private function seekedEvent():void {
myStatus.isSeeking = false;
updateStatusValues();
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_SEEKED, myStatus));
}
private function netStatusHandler(e:NetStatusEvent):void {
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "netStatusHandler: '" + e.info.code + "'"));
switch(e.info.code) {
case "NetConnection.Connect.Success":
connectStream();
break;
case "NetStream.Play.Start":
// This event code occurs once, when the media is opened. Equiv to loadOpen() in mp3 player.
myStatus.loading();
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_LOADSTART, myStatus));
progressUpdates(true);
// See onMetaDataHandler() for other condition, since duration is vital.
break;
case "NetStream.Play.Stop":
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "NetStream.Play.Stop: getDuration() - getCurrentTime() = " + (getDuration() - getCurrentTime())));
// Check if media is at the end (or close) otherwise this was due to download bandwidth stopping playback. ie., Download is not fast enough.
if(Math.abs(getDuration() - getCurrentTime()) < 150) { // Testing found 150ms worked best for M4A files, where playHead(99.9) caused a stuck state due to firing with ~116ms left to play.
endedEvent();
}
break;
case "NetStream.Seek.InvalidTime":
// Used for capturing invalid set times and clicks on the end of the progress bar.
endedEvent();
break;
case "NetStream.Play.StreamNotFound":
myStatus.error(); // Resets status except the src, and it sets srcError property.
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_ERROR, myStatus));
break;
}
// "NetStream.Seek.Notify" event code is not very useful. It occurs after every seek(t) command issued and does not appear to wait for the media to be ready.
}
private function endedEvent():void {
var wasPlaying:Boolean = myStatus.isPlaying;
pause(0);
timeUpdates(false);
timeUpdateEvent();
if(wasPlaying) {
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_ENDED, myStatus));
}
}
private function securityErrorHandler(event:SecurityErrorEvent):void {
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "securityErrorHandler."));
}
private function connectStream():void {
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "connectStream."));
var customClient:Object = new Object();
customClient.onMetaData = onMetaDataHandler;
// customClient.onPlayStatus = onPlayStatusHandler; // According to the forums and my tests, onPlayStatus only works with FMS (Flash Media Server).
myStream = null;
myStream = new NetStream(myConnection);
myStream.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
myStream.client = customClient;
myVideo.attachNetStream(myStream);
setVolume(myStatus.volume);
myStream.play(myStatus.src);
}
public function setFile(src:String):void {
if(myStream != null) {
myStream.close();
}
myVideo.clear();
progressUpdates(false);
timeUpdates(false);
myStatus.reset();
myStatus.src = src;
myStatus.srcSet = true;
timeUpdateEvent();
}
public function clearFile():void {
setFile("");
myStatus.srcSet = false;
}
public function load():Boolean {
if(myStatus.loadRequired()) {
myStatus.startingDownload();
myConnection.connect(null);
return true;
} else {
return false;
}
}
public function play(time:Number = NaN):Boolean {
var wasPlaying:Boolean = myStatus.isPlaying;
if(!isNaN(time) && myStatus.srcSet) {
if(myStatus.isPlaying) {
myStream.pause();
myStatus.isPlaying = false;
}
myStatus.pausePosition = time;
}
if(myStatus.isStartingDownload) {
myStatus.playOnLoad = true; // Raise flag, captured in onMetaDataHandler()
return true;
} else if(myStatus.loadRequired()) {
myStatus.playOnLoad = true; // Raise flag, captured in onMetaDataHandler()
return load();
} else if((myStatus.isLoading || myStatus.isLoaded) && !myStatus.isPlaying) {
if(myStatus.metaDataReady && myStatus.pausePosition > myStatus.duration) { // The time is invalid, ie., past the end.
myStream.pause(); // Since it is playing by default at this point.
myStatus.pausePosition = 0;
myStream.seek(0);
timeUpdates(false);
timeUpdateEvent();
if(wasPlaying) { // For when playing and then get a play(huge)
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_PAUSE, myStatus));
}
} else if(getSeekTimeRatio() > getLoadRatio()) { // Use an estimate based on the downloaded amount
myStatus.playOnSeek = true;
seeking(true);
myStream.pause(); // Since it is playing by default at this point.
} else {
if(!isNaN(time)) { // Avoid using seek() when it is already correct.
myStream.seek(myStatus.pausePosition/1000); // Since time is in ms and seek() takes seconds
}
myStatus.isPlaying = true; // Set immediately before playing. Could affects events.
myStream.resume();
timeUpdates(true);
if(!wasPlaying) {
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_PLAY, myStatus));
}
}
return true;
} else {
return false;
}
}
public function pause(time:Number = NaN):Boolean {
myStatus.playOnLoad = false; // Reset flag in case load/play issued immediately before this command, ie., before onMetadata() event.
myStatus.playOnSeek = false; // Reset flag in case play(time) issued before the command and is still seeking to time set.
var wasPlaying:Boolean = myStatus.isPlaying;
// To avoid possible loops with timeupdate and pause(time). A pause() does not have the problem.
var alreadyPausedAtTime:Boolean = false;
if(!isNaN(time) && myStatus.pausePosition == time) {
alreadyPausedAtTime = true;
}
// Need to wait for metadata to load before ever issuing a pause. The metadata handler will call this function if needed, when ready.
if(myStream != null && myStatus.metaDataReady) { // myStream is a null until the 1st media is loaded. ie., The 1st ever setMedia being followed by a pause() or pause(t).
myStream.pause();
}
if(myStatus.isPlaying) {
myStatus.isPlaying = false;
myStatus.pausePosition = myStream.time * 1000;
}
if(!isNaN(time) && myStatus.srcSet) {
myStatus.pausePosition = time;
}
if(wasPlaying) {
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_PAUSE, myStatus));
}
if(myStatus.isStartingDownload) {
return true;
} else if(myStatus.loadRequired()) {
if(time > 0) { // We do not want the stop() command, which does pause(0), causing a load operation.
return load();
} else {
return true; // Technically the pause(0) succeeded. ie., It did nothing, since nothing was required.
}
} else if(myStatus.isLoading || myStatus.isLoaded) {
if(myStatus.metaDataReady && myStatus.pausePosition > myStatus.duration) { // The time is invalid, ie., past the end.
myStatus.pausePosition = 0;
myStream.seek(0);
seekedEvent(); // Deals with seeking effect when using setMedia() then pause(huge). NB: There is no preceeding seeking event.
} else if(!isNaN(time)) {
if(getSeekTimeRatio() > getLoadRatio()) { // Use an estimate based on the downloaded amount
seeking(true);
} else {
if(myStatus.metaDataReady) { // Otherwise seek(0) will stop the metadata loading.
myStream.seek(myStatus.pausePosition/1000);
}
}
}
timeUpdates(false);
// Need to be careful with timeupdate event, otherwise a pause in a timeupdate event can cause a loop.
// Neither pause() nor pause(time) will cause a timeupdate loop.
if(wasPlaying || !isNaN(time) && !alreadyPausedAtTime) {
timeUpdateEvent();
}
return true;
} else {
return false;
}
}
public function playHead(percent:Number):Boolean {
var time:Number = percent * getDuration() * getLoadRatio() / 100;
if(myStatus.isPlaying || myStatus.playOnLoad || myStatus.playOnSeek) {
return play(time);
} else {
return pause(time);
}
}
public function setVolume(v:Number):void {
myStatus.volume = v;
myTransform.volume = v;
if(myStream != null) {
myStream.soundTransform = myTransform;
}
}
private function updateStatusValues():void {
myStatus.seekPercent = 100 * getLoadRatio();
myStatus.currentTime = getCurrentTime();
myStatus.currentPercentRelative = 100 * getCurrentRatioRel();
myStatus.currentPercentAbsolute = 100 * getCurrentRatioAbs();
myStatus.duration = getDuration();
}
public function getLoadRatio():Number {
if((myStatus.isLoading || myStatus.isLoaded) && myStream.bytesTotal > 0) {
return myStream.bytesLoaded / myStream.bytesTotal;
} else {
return 0;
}
}
public function getDuration():Number {
return myStatus.duration; // Set from meta data.
}
public function getCurrentTime():Number {
if(myStatus.isPlaying) {
return myStream.time * 1000;
} else {
return myStatus.pausePosition;
}
}
public function getCurrentRatioRel():Number {
if((getLoadRatio() > 0) && (getCurrentRatioAbs() <= getLoadRatio())) {
return getCurrentRatioAbs() / getLoadRatio();
} else {
return 0;
}
}
public function getCurrentRatioAbs():Number {
if(getDuration() > 0) {
return getCurrentTime() / getDuration();
} else {
return 0;
}
}
public function getSeekTimeRatio():Number {
if(getDuration() > 0) {
return myStatus.pausePosition / getDuration();
} else {
return 1;
}
}
public function onMetaDataHandler(info:Object):void { // Used in connectStream() in myStream.client object.
// This event occurs when jumping to the start of static files! ie., seek(0) will cause this event to occur.
if(!myStatus.metaDataReady) {
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "onMetaDataHandler: " + info.duration + " | " + info.width + "x" + info.height));
myStatus.metaDataReady = true; // Set flag so that this event only effects jPlayer the 1st time.
myStatus.metaData = info;
myStatus.duration = info.duration * 1000; // Only available via Meta Data.
if(info.width != undefined) {
myVideo.width = info.width;
}
if(info.height != undefined) {
myVideo.height = info.height;
}
if(myStatus.playOnLoad) {
myStatus.playOnLoad = false; // Capture the flag
if(myStatus.pausePosition > 0 ) { // Important for setMedia followed by play(time).
play(myStatus.pausePosition);
} else {
play(); // Not always sending pausePosition avoids the extra seek(0) for a normal play() command.
}
} else {
pause(myStatus.pausePosition); // Always send the pausePosition. Important for setMedia() followed by pause(time). Deals with not reading stream.time with setMedia() and play() immediately followed by stop() or pause(0)
}
this.dispatchEvent(new JplayerEvent(JplayerEvent.JPLAYER_LOADEDMETADATA, myStatus));
} else {
this.dispatchEvent(new JplayerEvent(JplayerEvent.DEBUG_MSG, myStatus, "onMetaDataHandler: Already read (NO EFFECT)"));
}
}
}
}