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Using the API's Onyoutubeiframeapiready options trading functions, you can queue videos for playback; play, pause, or stop those videos; adjust the player volume; or retrieve information about the video being played. You can also add event listeners that will execute in response to certain player events, such as a player state change or a video playback quality change.
It identifies the different types of events that onyoutubeiframeapiready options trading API can send and explains how to write event listeners to respond to those events. It also details onyoutubeiframeapiready options trading different Onyoutubeiframeapiready options trading functions that you can call to control the video player as well as the player parameters you can use to further customize the player.
Most modern browsers support postMessagethough Internet Explorer 7 does not support onyoutubeiframeapiready options trading. Embedded players must have a viewport that is at least px by px. If the player onyoutubeiframeapiready options trading controls, it must be onyoutubeiframeapiready options trading enough to fully display the controls without shrinking the viewport below the minimum size.
Thus, this function might create the onyoutubeiframeapiready options trading objects that you want to display when the page loads. The sample HTML page below creates an embedded player that will load a video, play it for six seconds, and then stop the playback. The numbered comments in the HTML are explained in the list below the example.
The Loading a video player section explains how onyoutubeiframeapiready options trading do so. This portion of the code defines a global variable, playerwhich refers to the video player you are embedding, and the function then constructs the video player object. The onPlayerReady function will execute when the onReady event fires. Onyoutubeiframeapiready options trading this example, the function indicates that when the video player is ready, it should begin to play.
The API will call the onPlayerStateChange function when the player's onyoutubeiframeapiready options trading changes, which may indicate that the player is playing, paused, finished, and so forth. The function indicates that when the player state is 1 playingthe player should play for six seconds and then call the stopVideo function to stop the video.
The Examples section also shows a couple other examples for constructing video player objects. To call the player API methods, you must first get a reference to the player object you wish to control. You obtain the reference by creating a YT. Player object as discussed in the Getting started and Loading a video player sections of this document. Queueing functions allow you to load and play a video, a playlist, or another list of videos.
If you are using the object syntax described below to call these functions, then you can also queue or load a list of search results or a user's list of uploaded videos. The object syntax lets you pass an object as a single parameter and to define object properties for the function arguments that you wish to set. In addition, the API may support additional functionality that the argument syntax does not support. For example, the loadVideoById function can be called in either of the following ways.
Note that the onyoutubeiframeapiready options trading syntax supports the endSeconds property, which the argument syntax does not support. This function loads the specified video's thumbnail and prepares the player to play the video.
The cuePlaylist and loadPlaylist functions allow you to load and play a playlist or list of videos. If you are using object syntax to call these functions, you can also queue or load a list of search results or a user's list of uploaded videos.
Since the functions work differently depending on onyoutubeiframeapiready options trading they are called using the argument syntax or the object syntax, both calling methods are documented below.
The required playlist parameter specifies an array of YouTube video IDs. The optional index parameter specifies the index of the first video in the playlist that will play. The parameter uses a zero-based index, and the default parameter value is 0so the default behavior is to load and play the first video in the playlist. If you specify a startSeconds value and then call seekTothen the onyoutubeiframeapiready options trading plays from the time specified in the seekTo call.
Onyoutubeiframeapiready options trading you cue a playlist and then call the playVideoAt function, the player will start playing at the beginning of the specified video. The optional suggestedQuality parameter specifies the suggested playback quality for the video. Please see the definition of the setPlaybackQuality function for more information about playback quality. The optional listType property specifies the type of results feed that you are retrieving.
The default value is playlist. The required list property contains a key that identifies the particular list of videos that YouTube should return. If the listType property value is playlistthen the list property specifies the playlist Onyoutubeiframeapiready options trading or an array of video IDs. If the listType property value is searchthen the list property specifies the search query.
The optional index property specifies the index of the first video in the list that will play. The parameter uses a zero-based index, and the default parameter value is 0so the default behavior is to load and play the first video in the list. If you cue a list and then call the playVideoAt function, the player will start playing at the beginning of the specified video.
The optional suggestedQuality property specifies the suggested playback quality for the list's videos. If the listType property value is playlistthen the list property specifies a playlist ID or an array of video IDs. The seconds parameter identifies the time to which the player should advance. The player will advance to the closest keyframe before that time unless the player examples of call and put options already downloaded the portion of the video to which the user is seeking.
The allowSeekAhead parameter determines whether the player will make a new request to the server if the seconds parameter specifies a time outside of the currently buffered video data.
We recommend that you set this parameter to false while the user drags the mouse along a video progress bar and then set it to true when the user releases the mouse. This approach lets a user scroll to different points of a video without requesting new video streams by scrolling past unbuffered points in the video.
When the user releases the mouse button, the player advances to the desired point in the video and requests a new video stream if necessary. The required index parameter specifies the index of the video that you want to play in the playlist.
The parameter uses a zero-based index, so a value of 0 identifies the first video in the list. If you have shuffled the playlist, this function will play onyoutubeiframeapiready options trading video at the specified position in the shuffled playlist. This function indicates whether the video player should continuously play a playlist or if it should stop playing after the last video in the playlist ends. The default behavior is that playlists do not loop.
This setting will persist even if you load or cue a different playlist, which means that onyoutubeiframeapiready options trading you load a playlist, call the setLoop function with a value of trueand then load a second playlist, the second playlist will also loop.
The required loopPlaylists parameter identifies the looping behavior. If the parameter value is truethen the video player will continuously play onyoutubeiframeapiready options trading. After onyoutubeiframeapiready options trading the last video in a playlist, the video player will go back to the beginning of onyoutubeiframeapiready options trading playlist and play it again. If the parameter value is false onyoutubeiframeapiready options trading, then playbacks will end after the video player plays the last video in a playlist.
This function indicates whether a playlist's videos should be shuffled so that they play back in an order different from the one that the playlist creator designated. Onyoutubeiframeapiready options trading you shuffle a playlist after it has already started playing, the list will be reordered while the video that is playing continues to play. The next video that plays will then be selected based on the reordered list.
This setting will not persist if you load or cue a different playlist, which means that if you load a playlist, call the setShuffle function, and onyoutubeiframeapiready options trading load a second playlist, the second playlist will not be shuffled.
The required shufflePlaylist parameter indicates whether YouTube should shuffle the playlist. If the parameter value is truethen YouTube will shuffle the playlist order. If you instruct the function to shuffle a playlist that has already been shuffled, YouTube will shuffle the order again.
If the parameter value is falsethen YouTube will change the playlist order back to its original order. Player height is px, and player dimensions are at least px by px for 4: Player height is px, and player dimensions are px by px for Player height is onyoutubeiframeapiready options trading than px, which means that onyoutubeiframeapiready options trading player's aspect ratio is greater than px by px.
YouTube selects the appropriate playback quality. This setting effectively reverts the quality level to the default state and nullifies any previous efforts to set playback quality using the cueVideoByIdloadVideoById or setPlaybackQuality functions. If you have not shuffled the playlist, the return value will identify the position where the playlist creator placed the video. The return value uses a zero-based index, so a value of 0 identifies the first video in the onyoutubeiframeapiready options trading.
If you have shuffled the playlist, the return value will identify the video's order within the shuffled playlist. The API fires events to notify your application of changes to the embedded player. As noted in the previous section, you can subscribe to events by adding an event listener when constructing the YT. Player objectand you can also use the addEventListener function. The API will pass an event onyoutubeiframeapiready options trading as the sole argument to each of those functions.
The event object onyoutubeiframeapiready options trading the following properties:. For example, this error occurs if you specify a video ID that does not have 11 characters, or if the video ID contains invalid characters, such as exclamation points or asterisks.
This error occurs when a video has been removed for any reason or has been marked as private. It's just a error in disguise! Your application can listen for this event and then poll the player to determine which options are exposed for the recently loaded module.
Your application can then retrieve or update the existing settings for those options. The following command retrieves an array of module names for which you can set player options: Upon receiving an onApiChange event, your application can use the following command to determine which options can be set for the captions module: The following commands retrieve and update module options: Module Option Description captions fontSize This option adjusts the font size of the captions displayed in the player.
The default size is 0 onyoutubeiframeapiready options trading, and the smallest size is Setting this option to an integer below -1 will cause the smallest caption size to display, while setting this option to an integer above 3 will cause the largest caption size to display.