For reference only, you can find which Sticker IDs relate to which Super Stickers in this CSV file. The definitions of the liveChatMessage resource's snippet.superStickerDetails.superStickerMetadata.stickerId property and the superChatEvent resource's snippet.superStickerMetadata.stickerId property have both been updated to reflect this information.

The API now supports a new way of inserting ads into live broadcasts. In addition to liveCuepoints, which let you manually insert ad breaks into a broadcast, YouTube now supports a feature to automatically insert midroll ad breaks into a broadcast at fixed intervals.

If the broadcast owner enables automated ads, they can view the following aspects of ad behavior:

• the length of the interval between midroll ad breaks.
• the scheduling strategy for ad cuepoints. Cuepoints can be inserted concurrently for all viewers or the timing of the cuepoints can vary from viewer to viewer. The latter strategy enables YouTube to schedule cuepoints at an increased rate that allows viewers to receive cuepoints when they are eligible to do so.
• a period during which midroll ads are not shown; for this feature, the broadcast owner specifies that midroll ads insertion is paused until a particular time.

The documentation reflects the following API changes to support this feature:

• The liveBroadcast resource now contains a monetizationDetails object. The object's fields indicate whether automatic ad insertion is enabled for the broadcast and specify additional information for scheduling cuepoints.
• The liveBroadcast.list method's part parameter supports the value monetizationDetails.
• The update method can be used to pause midroll ads insertion for a certain period for a live broadcast. The documentation also now identifies several errors that can occur when updating the monetization details for a live broadcast.

The liveBroadcasts.update method no longer requires values for these fields:

• snippet.title
• status.privacyStatus

Omitting these fields from the request will leave them unchanged.

• The new liveBroadcasts.cuepoint method enables any channel owner running a live broadcast on YouTube to insert cuepoints into that broadcast, which can trigger ad breaks. This method replaces the liveCuepoints.insert method, which only enabled YouTube content partners to insert cuepoints into live broadcasts.

  Several guides have been updated to reflect the availability of this new method.

• Note: This is a deprecation announcement.

  The liveCuepoints.insert method is now deprecated. Support for the liveCuepoints.insert method will be removed on or after May 1, 2023. API users should update their applications to call the liveBroadcasts.cuepoint method instead.

• Documentation for the liveBroadcasts.control method has been removed. A deprecation notice for that method was posted in September 2020.

The liveBroadcasts.update method no long requires values for these fields:

• contentDetails.enableContentEncryption
• contentDetails.enableDvr
• contentDetails.enableEmbed
• contentDetails.recordFromStart
• contentDetails.startWithSlate

Documentation has been removed for the obsolete liveBroadcast fields:

• contentDetails.enableContentEncryption
• contentDetails.startWithSlate

The snippet.type property now supports two new values:

• membershipGiftingEvent
• giftMembershipReceivedEvent

The liveChatMessage resource's new snippet.membershipGiftingDetails property and its children contain information about the Membership Gifting event.

Similarly, the new snippet.giftMembershipReceivedDetails property and its children contain information about the Gift Membership Received event.

The snippet.type property now supports two new values:

• newSponsorEvent
• memberMilestoneChatEvent

The liveChatMessage resource's new snippet.memberMilestoneChatDetails property and its children contain information about the Member Milestone Chat event.

Similarly, the new snippet.newSponsorDetails property and its children contain information about the New Sponsor event.

The API's liveBroadcasts.transition method supports a new 403 (Forbidden) error, which indicates that the user has sent too many requests within a given timeframe. The error reason is userRequestsExceedRateLimit.

• The definition of the liveBroadcast resource's status.madeForKids property has been updated to clarify that the property is read-only. This does not reflect a change in API functionality.

  To designate a live broadcast as being child-directed, set the status.selfDeclaredMadeForKids property to true when calling the liveBroadcasts.insert method to create the broadcast.

• Note: This change includes a deprecation announcement and an update to a prior deprecation announcement.

  The liveBroadcasts.control method will be deprecated on or after 1 October 2020. After that date, all calls to this method will return a forbidden (403) error, and the method will later be completely removed. Clients can still implement their own slating by adding an overlay to the video sent to YouTube’s ingestion servers.

  The deprecation date for the deprecation announcement made on 16 April 2020, which was originally scheduled for 1 September 2020, has been pushed back and will now happen on or after 1 October 2020. Thus, the features included in that deprecation announcement and the liveBroadcasts.control method will all be deprecated at the same time.

Note: This is an update to a prior deprecation announcement.

The liveStream resource's cdn.format field, which was deprecated in April 2016, will no longer be supported as of August 17, 2020. Requests still using that field will fail as of that date.

If your code still uses the cdn.format field, it must be updated to specify the frame rate and resolution separately, using the cdn.frameRate and cdn.resolution properties.

The Delivering Live YouTube Content via HLS guide has been updated with a few changes:

• The recommended duration for a Media Segment has been updated to one to four seconds.
• A new section explains how to obtain an HLS Ingestion URL from YouTube Creator Studio.
• Instructions for formatting the file parameter value have been moved to the new Completing the HLS Ingestion URL section. These instructions apply regardless of whether the HLS ingestion URL is obtained from the YouTube API or YouTube Creator Studio.

In addition, the new ingestion protocol comparison lists the ingestion protocols that YouTube supports, the codecs supported for each protocol, and additional information regarding appropriate use cases for each protocol.

This update includes a new property and a deprecation announcement:

• The liveBroadcast resource now supports the contentDetails.enableAutoStop property. The property indicates whether a broadcast should stop automatically around one minute after the channel owner stops streaming video on the bound video stream.

  The life of a broadcast document has been updated to explain how the step-by-step process of creating and managing a live YouTube event changes if you set the contentDetails.enableAutoStart or contentDetails.enableAutoStop properties to true.

• Note: This is a deprecation announcement. These changes will go into effect on or after September 1, 2020. The actual date that the changes take effect is referred to below as the deprecation date.

  This update explains a potentially breaking change. It affects API client applications that use channels' default liveStream and liveBroadcast resources to stream live content on YouTube. Specifically, the broadcast ID and stream ID associated with the persistent broadcast and stream will no longer function to start new broadcasts.

  Your application will be affected if any of the following are true:

  • It checks the value of the liveBroadcast resource's isDefaultBroadcast property. This property will not be returned after the deprecation date.
  • It checks the value of the liveStream resource's isDefaultStream property. This property will not be returned after the deprecation date.
  • It calls the liveBroadcasts.list method and sets the broadcastType parameter value to persistent or all. This parameter will be deprecated as part of these changes. As of the deprecation date:
    • If the broadcastType parameter value is persistent, then the liveBroadcasts.list method will not return any results.
    • If the broadcastType parameter value is all, then the liveBroadcasts.list method will not return persistent broadcasts that existed before that time.

  As background, for the past few years, YouTube has automatically created a default stream and a default broadcast for a channel when that channel was enabled for live streaming. The default stream existed indefinitely, did not have a start or end time associated with it, and could not be deleted. Similarly, the default broadcast was considered persistent. It always existed and was not bound to a particular event.

  As of the deprecation date:

  • YouTube will no longer create default streams and broadcasts. Instead of relying on the default resources, API clients need to be able to create and manage liveBroadcast and liveStream resources and to bind those resources together.
  • If a channel's default broadcast and default stream are actively live, meaning the channel is using them for a live broadcast at the time the deprecation goes into effect, the ongoing broadcast will not be affected. However, after that broadcast ends, the channel will not be able to use the default broadcast and default stream again.
  • If a channel's default broadcast and default stream are not actively live, then after the deprecation goes into effect, YouTube will ignore attempts to use those resources to broadcast video.

  If your application is affected, please refer to the following documents, which will help you to update your application so that it still works as expected following this change:

  • A new migration guide tries to explain the steps that developers might need to address in API clients that currently use default broadcasts and streams.
  • The Life of a broadcast guide takes you through a step-by-step process that explains how to create and manage a live event on YouTube. Each step explains the API calls or other things that you need to do to complete a specific action, and your application will need to follow that process when YouTube stops supporting default streams and broadcasts.

Note: This is a deprecation announcement.

The sponsor resource and sponsors.list method have been deprecated and replaced by the member resource and members.list method.

The sponsors.list method will no longer be supported on or after September 30, 2020. API clients should update calls to the sponsors.list method to use the members.list method instead. Please see the YouTube Data API revision history for more information about the new resource.

The Ingestion endpoint section of the Delivering Live YouTube Content via HLS guide has been updated to clarify the process that an encoder should use to complete the file= parameter value when forming the primary and backup ingestion URLs.

The Delivering Live YouTube Content via HLS guide has been updated to note that DELETE requests are optional and that YouTube's HLS endpoint ignores them. For performance reasons, YouTube recommends clients do not send DELETE requests.

The API now supports the ability to identify child-directed content, which YouTube calls "made for kids." Learn more about "made for kids" content in the YouTube Help Center.

• The liveBroadcast resource supports two new properties to enable content creators and viewers to identify "made for kids" content:
  • The selfDeclaredMadeForKids property enables content creators to specify whether a live broadcast is child-directed content. This property can be set when creating a broadcast via the liveBroadcasts.insert method. Note that this property is only included in API responses that contain liveBroadcast resources if the channel owner authorized the API request.
  • The madeForKids property enables any API user to retrieve the "made for kids" status of a broadcast. For example, the status might be determined based on the value of the selfDeclaredMadeForKids property. See the YouTube Help Center for more information about setting the audience for your channel, videos, or broadcasts.
• In the YouTube Data API, the channel resource also supports new selfDeclaredMadeForKids and madeForKids properties.

We have also updated the YouTube API Services Terms of Service and Developer Policies. Please see the YouTube API Services Terms of Service - Revision History for more information. The changes to the YouTube API Services Terms of Service and Developer Policies will take effect on January 10, 2020 Pacific Time.

The Requirements section of the Delivering Live YouTube Content via HLS guide has been updated with two changes:

• It explains that it is a best practice to include both acknowledged segments and outstanding segments in each Media Playlist. This practice makes it less likely for a segment to be skipped if a Media Playlist is lost on the server side. For example, you could include up to two acknowledged segments and up to five outstanding segments in each Media Playlist.
• It is now a requirement to send a Media Playlist for every Media Segment. This enables the server to recover quickly if a Media Playlist is lost. This practice was previously listed as a recommendation.

YouTube now supports HLS ingestion. Accordingly, the liveStream resource's ingestionType property supports the new value hls to identify streams ingested to YouTube using HLS.

The new Delivering Live YouTube Content via HLS guide provides guidelines for using HLS to stream live content to YouTube from an encoder. The guide aims to help encoder vendors add HLS delivery support to their products.

This update contains the following changes:

• The API reference documentation has been updated to better explain common use cases for each method and to provide dynamic, high-quality code samples through the APIs Explorer widget. See the liveBroadcasts.list method's documentation for an example. There are now two new elements on pages that describe API methods:

  • The APIs Explorer widget lets you select authorization scopes, enter sample parameter and property values, and then send actual API requests and see actual API responses. The widget also offers a fullscreen view that shows complete code samples, which dynamically update to use the scopes and values that you have entered.

  • The Common use cases section describes one or more common use cases for the method explained on the page. For example, you could call the liveBroadcasts.list method to retrieve data about a specific broadcast or to retrieve data about the current user's broadcasts.

    You can use links in that section to populate the APIs Explorer with sample values for your use case or to open the fullscreen APIs Explorer with those values already populated. These changes aim to make it easier for you to see code samples that are directly applicable to the use case that you're trying to implement in your own application.

  Code samples are currently supported for Java, JavaScript, PHP, Python, and curl.

• The code samples page has also a new UI that offers all of the same features described above. Using that tool, you can explore use cases for different methods, load values into the APIs Explorer, and open the fullscreen APIs Explorer to get code samples in Java, JavaScript, PHP, and Python.

  In conjunction with this change, the pages that previously listed available code samples for Java, PHP, and Python have been removed.

The documentation of the liveChatMessage and superChatEvent resources has been updated to reflect the fact that both resources can now contain information about Super Stickers. Super Stickers are a type of Super Chat message that displays an image. Like other Super Chats, a Super Sticker message is purchased by a fan during a YouTube live stream.

• In a liveChatMessage resource, the snippet.type property is now set to superStickerEvent to indicate that the resource contains information about a Super Sticker. In that case, the resource also contains the snippet.superStickerDetails object, which contains additional information about the Super Sticker.
• In a superChatEvent resource, the boolean snippet.isSuperStickerEvent indicates whether the Super Chat message is also a Super Sticker. If so, then the snippet.superStickerMetadata object contains additional details about the Super Sticker.

The description of the superChatEvents.list method has been updated to reflect the fact that the API response no longer contains fanFundingEvents, which were deprecated in early 2017.

New Java code samples have been added that show how to list, insert, and delete live chat messages. The samples call the following methods:

• liveBroadcasts.list
• liveChatMessages.list
• liveChatMessages.insert
• liveChatMessages.delete

This update contains the following changes:

• Updates to existing resources and methods

  • The liveCuepoints.insert method has been updated to reflect the fact that the onBehalfOfContentOwner parameter is currently required. In addition, the method's description has been updated to note that calls to that method must be authorized by an account associated with a YouTube Content Owner.

This update contains the following changes:

• Updates to existing resources and methods

  • The superChatEvents.list method's new hl parameter lets you specify that the snippet.displayString property value should be formatted according to the conventions of a particular language. That property's definition has also been updated accordingly.

    The parameter value must be a language code included in the list returned by the i18nLanguages.list method. The default value is en, which means that the default behavior is to format display strings as they would be used in English. For example, by default, a string is formatted as $1.00 rather than $1,00.

This update contains the following changes:

• New resources and methods

  • The new superChatEvent resource represents a Super Chat message purchased by a fan during a YouTube live stream. In the YouTube live chat stream, Super Chats stand out from other messages in two ways:

    • Super Chats are highlighted with a color.
    • Super Chats stay pinned in the ticker for a set period of time.

    The color of the Super Chat, the period of time it stays pinned in the ticker, and the maximum message length are all determined by the purchase amount. The YouTube Help Center has more information about Super Chats.

    The API supports a method to list Super Chat events for a channel's live streams in the previous 30 days. That method also returns data about Fan Funding events (fanFundingEvents) from the channel's last live stream.

• Updates to existing resources and methods

  • The snippet.type property now supports the superChatEvent value, which indicates that the resource describes a Super Chat.

    In addition, the liveChatMessage resource's new snippet.superChatDetails property and its children contain information about the Super Chat event.

  • The liveStream resource's cdn.resolution property now supports the value 2160p.

• New and updated errors

  • The API supports the following new errors:

    Error details
    liveBroadcasts.insert, liveBroadcasts.update	The liveBroadcasts.insert and liveBroadcasts.update methods return 400 (Bad Request) errors to indicate that the liveBroadcast resource being inserted or updated contains an invalid value for either the contentDetails.enableEmbed property or the contentDetails.projection property. The error reasons for the two new errors are invalidEmbedSetting and invalidProjection, respectively.

Note: This is a deprecation announcement.

In conjunction with the release of the new Super Chat feature, YouTube has deprecated the Fan Funding feature, and the Fan Funding API will be turned off on February 28, 2017. As of that date:

• The liveChatMessages.list method will no longer return messages with a snippet.type of fanFundingEvent. Similarly, liveChatMessage resources will no longer contain the snippet.fanFundingEventDetails object.
• The fanFundingEvents.list method will no longer return data.

This update contains the following changes:

• The newly published YouTube API Services Terms of Service ("the Updated Terms"), discussed in detail on the YouTube Engineering and Developers Blog, provides a rich set of updates to the current Terms of Service. In addition to the Updated Terms, which will go into effect as of February 10, 2017, this update includes several supporting documents to help explain the policies that developers must follow.

  The full set of new documents is described in the revision history for the Updated Terms. In addition, future changes to the Updated Terms or to those supporting documents will also be explained in that revision history. You can subscribe to an RSS feed listing changes in that revision history from a link in that document.

YouTube now supports DASH ingestion. Accordingly, the liveStream resource's ingestionType property supports the new value dash to identify streams ingested to YouTube using DASH.

The new Delivering Live YouTube Content via DASH guide provides guidelines for using the DASH Delivery format to stream live data on YouTube from an encoder. It is intended to help encoder vendors add DASH delivery support to their products.

This update contains the following changes:

• Updates to existing resources and methods

  • liveStream resource updates

    • YouTube now supports DASH ingestion. Accordingly, the liveStream resource's ingestionType property supports the new value dash to identify streams ingested to YouTube using DASH.

    • YouTube now supports streams with 1440p resolution at either 30 or 60 frames per second.

      In addition, the liveStream resource contains new properties for specifying the frame rate and resolution of the inbound video data:

      Properties
      cdn.frameRate	The frame rate of the inbound video data. Valid values are 30fps and 60fps.
      cdn.resolution	The resolution of the inbound video data. Valid property values are: 1440p, 1080p, 720p, 480p, 360p, and 240p.

    • In accordance with the introduction of the liveStream resource's cdn.frameRate and cdn.resolution properties, the resource's cdn.format is now deprecated. The cdn.format property specifies resolution and frame rate in a single value.

      We encourage you to transition to the newly supported fields. In the meantime, cdn.format continues to work. In addition, requests to insert live streams currently succeed as long as you specify values for either the cdn.format property or the cdn.frameRate and cdn.resolution properties. If you provide values for all three properties, the API might return an error if the values are not in agreement.

      Note that even though the cdn.format property is deprecated, it does now support two new values, 1440p and 1440p_hfr, to reflect the API's support for 1440p streams at either 30 or 60 frames per second.

  • liveBroadcast resource updates

    • The liveBroadcast resource contains the following new properties:

      Properties
      contentDetails.boundStreamLastUpdateTimeMs	The date and time that the live stream referenced by the broadcast's contentDetails.boundStreamId property was last updated.
      contentDetails.projection	The broadcast's projection format. The property's default value is rectangular. Valid values for the property are 360 and rectangular.

    • The definition of the liveBroadcast resource's statistics.totalChatCount property has been updated to note that the property value only shows up if the broadcast has at least one chat message.

  • liveChatMessage resource updates

    • The snippet.type property supports two new values – messageDeletedEvent and userBannedEvent – that correspond to the new properties described in the following bullet point. The definition of the snippet.authorChannelId property has also been updated to explain what the property value identifies for these new message types.

    • The liveChatMessage resource contains the following new properties:

      Properties
      snippet.messageDeletedDetails	This object contains information about a message that was deleted by a chat moderator. The object is only present if the snippet.type property value is messageDeletedEvent.
      snippet.userBannedDetails	This object contains information about a user who has been banned from participating in the chat. The object also contains information about the ban itself, namely whether the ban is permanent or temporary. If the ban is temporary, one of the object's properties specifies the duration of the ban. This object is only present if the snippet.type property value is userBannedEvent.

• New and updated errors

  • The API supports the following new errors:

    Error details
    liveBroadcasts.bind	The liveBroadcasts.bind method returns a 403 (Forbidden) error to indicate that the user has sent too many requests within a given timeframe. The error reason is userRequestsExceedRateLimit. The liveBroadcasts.insert and liveBroadcasts.update methods already support the same error.
    liveStreams.insert	The liveStreams.insert method supports four new 400 (Bad Request) errors that identify an invalid property value in the liveStream resource that the request tried to insert. The following list identifies the error reasons and the properties with which they are associated: invalidFormat: cdn.format invalidFrameRate: cdn.frameRate invalidIngestionType: cdn.ingestionType invalidResolution: cdn.resolution
    liveStreams.insert	The liveStreams.insert method supports two new 400 (Bad Request) errors, each of which indicates that a required value is not present in the liveStream resource that the request tried to insert. The following list identifies the error reasons and the properties with which they are associated: frameRateRequired: cdn.frameRate resolutionRequired: cdn.resolution More specifically, when you insert a liveStream resource, you must specify a value for either the cdn.format property or for the cdn.frameRate and cdn.resolution properties. The API returns a formatRequired error if you do not specify a value for any of the three properties. The API returns a frameRateRequired error if you specify a value for cdn.resolution but not cdn.frameRate. The API returns a resolutionRequired error if you specify a value for cdn.frameRate but not cdn.resolution.
    liveStreams.update	The liveStreams.update method returns a 403 (Forbidden) error if the request tries to modify the value of any of the following non-mutable properties: cdn.format cdn.frameRate cdn.ingestionType cdn.resolution The reason in the error response is liveStreamModificationNotAllowed.

European Union (EU) laws require that certain disclosures must be given to and consents obtained from end users in the EU. Therefore, for end users in the European Union, you must comply with the EU User Consent Policy. We have added a notice of this requirement in our YouTube API Terms of Service.

This update contains the following changes:

• New resources and methods

  • The API supports several new resources to support chat functionality for live broadcasts. YouTube supports live chat functionality during active live broadcasts, and these resources and their methods support retrieval of chat messages as well as administrative functions for the chat.

    Resources
    liveChatMessage	This resource represents a message in a YouTube live chat. YouTube supports several types of messages, including text messages and Fan Funding events. Some message types identify a particular phase of the chat, such as the beginning of a sponsors-only period or the end of the chat. The API supports methods to list, insert, and delete live chat messages.
    liveChatModerators	This resource identifies a chat moderator. Moderators can perform some administrative functions, such as banning users from the chat or removing messages. The API supports methods to list, insert, and delete live chat moderators.
    liveChatBans	This resource identifies a user who is banned from posting messages to a particular live chat. Bans can be temporary or permanent. The API supports methods to insert and delete live chat bans.
    fanFundingEvents	This resource represents a Fan Funding event on a YouTube channel. Fan Funding provides a way for viewers to voluntarily support YouTube Creators with one-time monetary support. The API's fanFundingEvents.list method lists a channel's Fan Funding events. Fan Funding events that are initiated through a live chat during a live broadcast owned by the channel also trigger a fanFundingEvent message to the broadcast's live chat. Learn more about Fan Funding in the YouTube Help Center.
    sponsors	The sponsor resource identifies a sponsor of a YouTube channel. A sponsor pays a monthly fee to a channel. A badge shows up next to the sponsor's messages in the channel's live chats and sponsors can also participate in live chats exclusively for the channel's sponsors, if those occur. The API's sponsors.list method lists a channel's sponsors. When users sign up to sponsor a channel during a live broadcast owned by that channel, the API also adds a newSponsorEvent message to the broadcast's live chat. Learn more about sponsorships in the YouTube Help Center.

• Updates to existing resources and methods

  • The liveBroadcast resource contains the following new properties:

    Properties
    snippet.liveChatId	The ID for the broadcast's YouTube live chat. With this ID, you can use the liveChatMessage resource's methods to retrieve, insert, or delete chat messages. You can also add or remove chat moderators, ban users from participating in live chats, or remove existing bans.
    contentDetails.closedCaptionsType	Note: This property replaces the contentDetails.enableClosedCaptions property. This property indicates whether closed captioning is enabled for your broadcast and, if so, what type of closed captions you are providing: closedCaptionsDisabled: Closed captions are disabled for the live broadcast. closedCaptionsHttpPost: You will send captions, via HTTP POST, to an ingestion URL associated with your live stream. closedCaptionsEmbedded: Captions will be encoded in the video stream using EIA-608 and/or CEA-708 formats.
    contentDetails.enableClosedCaptions	This property has been deprecated as of December 17, 2015. Use the contentDetails.closedCaptionsType property instead. For API clients that are already using this property: Setting the property value to true is equivalent to setting the contentDetails.closedCaptionsType property to closedCaptionsHttpPost. Setting the property value to false is equivalent to setting the contentDetails.closedCaptionsType property to closedCaptionsDisabled.

  • The liveBroadcasts.list method's new broadcastType parameter lets you filter an API response to include event broadcasts, persistent broadcasts, or all broadcasts.

    A persistent broadcast is one that always exists and is not tied to a particular event. Specifically, a channel's default broadcast is a persistent broadcast, and it is accessible via the Live Dashboard in the YouTube Creator Studio. The channel's other broadcasts are event broadcasts.

• The liveStream resource's status.healthStatus.configurationIssues[].type field reports the following new health status errors:

  Errors
  audioTooManyChannels	The audio has more than two channels, but only one (mono) or two (stereo) channels are supported. Please correct the number of audio channels.
  frameRateHigh	The current framerate is too high. Please set the framerate to %(framerate)s fps or less.

• The publication date of the previous documentation update was corrected.

• New and updated errors

  • In addition to errors defined for the new resources listed above, the API supports the following new errors:

    Error details
    liveBroadcasts.update	HTTP Response Code forbidden (403) Reason closedCaptionsTypeModificationNotAllowed Description The contentDetails.closedCaptionsType value can only be modified when the broadcast is in the created or ready status.
    liveBroadcasts.update	HTTP Response Code invalidValue (400) Reason invalidEnableClosedCaptions Description In the liveBroadcast resource, the value of the contentDetails.enableClosedCaptions property is incompatible with the value of the contentDetails.closedCaptionType setting. Modify the resource to only include one of the two properties, and then resubmit the request.

This update contains the following changes:

• Updates to existing resources and methods

  • The liveStream resource contains the following new properties:

    Properties
    snippet.isDefaultStream	Indicates whether this stream is the default stream for the channel. A channel's default stream exists indefinitely, does not have a start or end time associated with it, and cannot be deleted. See the property's definition for more information about how default streams work.
    status.healthStatus	This object contains information that could be used to identify, diagnose and resolve streaming problems. The object contains a number of child properties to help you evaluate the health of a live video stream. In particular, the status.healthStatus.configurationIssues[] object lists issues affecting a video stream. A new document, Configuration Issues for LiveStream Resources, lists all of the issues that the API reports.
    contentDetails.isReusable	Indicates whether the stream is reusable, which means that it can be bound to multiple broadcasts. It is common for broadcasters to reuse the same stream for many different broadcasts if those broadcasts occur at different times.

  • The liveBroadcast resource contains the following new properties:

    Properties
    snippet.isDefaultBroadcast	Indicates whether this broadcast is the default broadcast for the channel. When a YouTube channel is enabled for live streaming, YouTube creates a default stream and a default broadcast for the channel. The stream defines how the channel owner sends live video to YouTube, and the broadcast is how viewers can see the default stream. See the property's definition for more information about how default broadcasts work.
    contentDetails.enableLowLatency	Indicates whether this broadcast should be encoded for low-latency streaming. A low-latency stream can reduce the amount of time it takes for video to be visible to users watching a broadcast, though it can also impact stream viewers' experience.
    statistics.totalChatCount	The total number of live chat messages associated with the broadcast. The property and its value are present if the broadcast is public, has the live chat feature enabled, and has at least one message. Note that this property will not specify a value after the broadcast ends. So, this property would not identify the number of chat messages for an archived video of a completed live broadcast.

• New and updated errors

  • In addition to errors defined for the new liveChat resource, the API supports the following new error:

    Error Details
    liveStreams.update	HTTP Response Code forbidden (403) Reason liveStreamModificationNotAllowed Description The API does not allow you to change a reusable stream to be non-reusable, or vice versa. For more information, see Understanding Broadcasts and Streams

This update contains the following changes:

• YouTube now supports live video streaming at 60 frames per second (fps), which means smoother playback for gaming and other fast-action videos. When you start a live stream on YouTube at 60fps, YouTube also makes the stream available in 30fps on devices where high-frame-rate viewing is not yet available.

  The liveStream resource's cdn.format property supports two new values for this feature: 720p_hfr and 1080p_hfr.

  See the YouTube Creators Blog for more information about this feature.

This update contains the following changes:

• The definition of the liveBroadcasts.control method's walltime parameter has been updated to note that the property value is specified in ISO 8601 format (YYYY-MM-DDThh:mm:ss.sssZ).

• The API now supports the following errors:

  Error type	Error detail	Description
  insufficientPermissions	liveStreamingNotEnabled	All methods for the liveBroadcast and liveStream resources return this error if the user that authorized the API request has not been enabled to stream live video on YouTube. Details explaining why the user cannot stream live video may be available in the user's channel settings at https://www.youtube.com/features.
  rateLimitExceeded	userRequestsExceedRateLimit	The liveBroadcasts.insert and liveStreams.insert methods both return this error to indicate that the user has sent too many requests within a given timeframe.

This update contains the following changes:

• The descriptions of the liveStream resource and of the liveBroadcasts.bind method have been updated to note that a broadcast can only be bound to one video stream, but a video stream can be bound to more than one broadcast. This change is solely a correction to the documentation; the underlying API functionality has not changed.

• The liveBroadcast resource's contentDetails.monitorStream.enableMonitorStream property has been updated to explain that if the property's value is true, then you must transition your broadcast to the testing state before you can transition it to the live state. (If the property's value is false, your broadcast cannot have a testing stage, so you can transition the broadcast directly to the live state.

• The liveCuepoint resource's settings.offsetTimeMs property has been updated to note that you should not specify a value for the property if your broadcast does not have a monitor stream.

• All of the methods for the liveBroadcast and liveStream resources now support the onBehalfOfContentOwner and onBehalfOfContentOwnerChannel parameters. These parameters allow you to use the same authorization credentials to complete API requests for different channels associated with the same content owner.

• The liveCuepoints.insert method's documentation has been updated to note that you can set a value for the settings.walltime property when calling that method.

• The error documentation now specifies the HTTP response code for each error type.

• The API now supports the following error:

  Error type	Error detail	Description
  insufficientPermissions	livePermissionBlocked	The liveBroadcasts.insert, liveBroadcasts.transition, and liveStreams.insert methods return this error if the user that authorized the request is unable to stream live video on YouTube. Details explaining why the user cannot stream live video may be available in the user's channel settings at https://www.youtube.com/features.

• The liveBroadcasts.insert method's invalidScheduledStartTime error has been updated to clarify that the scheduled start time must be close enough to the current date that a broadcast could be reliably scheduled at that time.

This update contains the following changes:

• The liveBroadcast resource's new status.recordingStatus property identifies the broadcast's current status.

• The liveBroadcast resource's new contentDetails.enableClosedCaptions property indicates whether closed captions can be ingested for the broadcast. The property value can be set when you insert or update a broadcast, but it cannot be updated once the broadcast is in the testing or live state. If you set this property to true, then the liveStream resource that is bound to the broadcast will specify the ingestion URL to use for the broadcast's closed captions.

• The liveBroadcast resource's snippet.scheduledEndTime property now supports broadcasts that are scheduled to continue indefinitely. With this change, the property is no longer required in liveBroadcasts.insert and liveBroadcasts.update requests.
  
  If you retrieve a liveBroadcast resource that does not specify a value for this property, then the broadcast is scheduled to continue indefinitely. Similarly, if you call the liveBroadcasts.insert or liveBroadcasts.update method and do not specify a value for this property, the broadcast will be scheduled to continue indefinitely.

• The liveBroadcast resource's contentDetails.recordFromStart property, which already had a default value of true, can now only be set to false if the broadcasting channel is allowed to disable recordings for live broadcasts.

  If your channel does not have permission to disable recordings, and you attempt to insert a broadcast with the recordFromStart property set to false, the API will return a Forbidden error. In addition, if your channel does not have that permission and you attempt to update a broadcast to set the recordFromStart property to false, the API will return a modificationNotAllowed error.

• The liveBroadcast resource no longer contains an enableArchive property, which had been mentioned in the descriptions of the contentDetails.enableDvr and contentDetails.enableEmbed properties.

• The list of valid values for the liveBroadcast resource's status.lifeCycleStatus property has been updated to include a description of each status.

• The liveCuepoint resource's new settings.walltime property specifies the date and time at which the cuepoint should be inserted. The API returns an error if a request tries to insert a cuepoint that specifies a value for this property and for the settings.offsetTimeMs property.

• The new contentDetails object in a liveStream resource contains information about the stream. Currently, the object's only property is contentDetails.closedCaptionsIngestionUrl, which specifies the ingestion URL for closed captions associated with the video stream.

• The list of valid values for the liveStream resource's status.streamStatus property has been updated to include a description of each status.

• The liveBroadcasts.control method's new walltime parameter lets you specify the date and time when a slate change will occur. The API returns an error if a request specifies a value for this parameter and for the offsetTimeMs parameter.

• In the API response to a liveBroadcasts.list request, the value of the kind property has changed from youtube#liveBroadcastList to youtube#liveBroadcastListResponse.

• In the API response to a liveStreams.list request, the value of the kind property has changed from youtube#liveStreamList to youtube#liveStreamListResponse.

• The eventId property has been deprecated from both the liveBroadcastListResponse and the liveStreamListResponse.

• The API supports the following new errors:

  Error type	Error detail	Description
  invalidValue	conflictingTimeFields	The liveBroadcasts.control method returns this error if your request specifies values for the offsetTimeMs and walltime parameters. A request can either omit both parameters or specify a value for one of the two parameters.
  invalidValue	invalidWalltime	The liveBroadcasts.control method returns this error if the walltime parameter's value is invalid.
  forbidden	enableClosedCaptionsModificationNotAllowed	The liveBroadcasts.update method returns this error if you attempt to update the contentDetails.enableClosedCaptions value and the broadcast's status is not created or ready.
  invalidValue	conflictingTimeFields	The liveCuepoints.insert method returns this error if your request specifies values for the settings.offsetTimeMs and settings.walltime properties. A request can either omit both properties or specify a value for one of the two properties.

  In addition, the liveStreams.update method no longer supports a cdnRequired error similar to the one that the liveStreams.insert method supports.

This update contains the following changes:

• YouTube no longer identifies experimental API features and services. Instead, we now provide a list of YouTube APIs that are subject to the deprecation policy.

This update contains the following changes:

• The new liveBroadcasts.control method enables you to toggle the display settings for a slate that displays in the broadcast stream for a broadcast that is already in progress. If your broadcast stream is delayed, you can also use this method to specify a time offset when the requested slate change will occur.

• The definitions of the following properties have been updated to explain that the property values must be set if you update a liveBroadcast resource's contentDetails part:

  • contentDetails.monitorStream.enableMonitorStream
  • contentDetails.monitorStream.broadcastStreamDelayMs
  • contentDetails.enableDvr
  • contentDetails.enableContentEncryption
  • contentDetails.enableEmbed
  • contentDetails.recordFromStart
  • contentDetails.startWithSlate

• The liveStream resource's status.streamStatus no longer supports the value deleted as a possible stream status.

• The information that the API returns for many error messages has been revised to better explain why particular errors occurred. The API also supports several new errors.

This update contains the following changes:

• The following properties have changed in the liveBroadcast resource:

  • The startWithSlateCuepoint property has been renamed to startWithSlate.
  • The enableArchive property has been renamed to recordFromStart.
  • The slateSettings object has been deprecated and removed from the documentation. Error messages related to the slateSettings object or its properties have also been removed.

• The API no longer supports the ability to insert in-stream slates using the liveCuepoints.insert method. The following documents have been updated to reflect this change:

  • The index page, Getting started guide, and Life of a broadcast tutorial no longer mention this functionality.

  • The liveCuepoint resource's settings.cueType property no longer supports slate as a property value. (The only supported value is ad.

  • The liveCuepoint resource's settings.eventState property has been deprecated and removed from the documentation.

This update contains the following changes:

• All of the API's error messages have been updated to more clearly explain possible errors and, when possible, offer guidance about how to fix them.

• The API may now return several new errors. The list below identifies the error and the API method that might return that error:

  • liveBroadcasts.insert – A broadcast's scheduled end time must be after its scheduled start time.
  • liveBroadcasts.insert – The broadcast specifies an invalid privacy status.
  • liveBroadcasts.update – The resource does not contain or does not set a value for the contentDetails.enableArchive property.
  • liveBroadcasts.update – The resource does not contain or does not set a value for the contentDetails.enableContentEncryption property.
  • liveBroadcasts.update – The resource does not contain or does not set a value for the contentDetails.enableDvr property.
  • liveStreams.insert – The snippet title must be between 1 and 128 characters long.
  • liveStreams.update – The resource does not contain or does not set a value for the snippet.title property.

• The liveStream resource documentation has been updated to reflect that multicast and WebM are not supported ingestion methods as previously indicated. The list of formats for the cdn.format property has been updated accordingly, and the cdn.multicastIngestionInfo object and its child properties have been removed from the resource's documentation. In addition, http has been removed from the list of supported cdn.ingestionType values.