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    Data Types

    Last updated: 2022-06-09 11:00:45
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    AudioParams

    The audio transcoding parameters for recording.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    SampleRate Integer Yes The audio sample rate.
    1: 48000 Hz (default)
    2: 44100 Hz
    3: 16000 Hz
    Channel Integer Yes The number of sound channels.
    1: Mono-channel
    2: Dual-channel (default)
    BitRate Integer Yes The audio bitrate (bps). Value range: [32000, 128000]. Default: 64000.

    CloudStorage

    The cloud storage information.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    Vendor Integer Yes The cloud storage provider.
    0: Tencent Cloud COS. The storage services of other providers are not supported currently.
    Region String Yes The region of cloud storage.
    Bucket String Yes The storage bucket.
    AccessKey String Yes The access_key of the cloud storage account.
    SecretKey String Yes The secret_key of the cloud storage account.
    FileNamePrefix Array of String No The bucket to save data, which is an array of strings that can contain letters (a-z and A-Z), numbers (0-9), underscores (_), and hyphens (-). For example, if the value of this parameter is ["prefix1", "prefix2"], the recording file xxx.m3u8 will be saved as prefix1/prefix2/TaskId/xxx.m3u8.

    CloudVod

    The VOD parameters.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    TencentVod TencentVod No The Tencent Cloud VOD parameters.

    MixLayout

    The custom layout parameters.

    Used by actions: CreateCloudRecording, ModifyCloudRecording.

    Name Type Required Description
    Top Integer Yes The Y axis of the window’s top-left corner. Value range: [0, 1920]. The value cannot be larger than the canvas height.
    Left Integer Yes The X axis of the window’s top-left corner. Value range: [0, 1920]. The value cannot be larger than the canvas width.
    Width Integer Yes The relative width of the window. Value range: [0, 1920]. The sum of the values of this parameter and Left cannot exceed the canvas width.
    Height Integer Yes The relative height of the window. Value range: [0, 1920]. The sum of the values of this parameter and Top cannot exceed the canvas height.
    UserId String No The user ID (string) of the anchor whose video is shown in the window. If you do not set this parameter, anchors’ videos will be shown in their room entry sequence.
    Alpha Integer No The degree of transparency of the canvas. Value range: [0, 255]. 0 means fully opaque, and 255 means fully transparent.
    RenderMode Integer No 0: Stretch. In this mode, the image is stretched to fill the space available. The whole image is visible after scaling. However, if the original aspect ratio is different from the target, the image may be distorted.

    1: Crop (default). In this mode, if the original aspect ratio is different from the target, the image will be cropped according to the target before being stretched to fill the space available. The image will not be distorted.

    2: Blank. This mode stretches the image while keeping its original aspect ratio. If the original aspect ratio is different from the target, there may be blank spaces to the top and bottom or to the left and right of the window.

    3: Smart stretch. This mode is similar to the crop mode, except that it restricts cropping to 20% of the image’s width or height at most.
    MediaId Integer No The type of the stream subscribed to.
    0: Primary stream (default)
    1: Substream
    ImageLayer Integer No The image layer. 0 is the default value and means the bottommost layer.
    SubBackgroundImage String No The download URL of the background image for a window. The image must be in JPG or PNG format and cannot be larger than 5 MB. If the image’s aspect ratio is different from that of the window, the image will be rendered according to the value of RenderMode.

    MixLayoutParams

    The layout parameters for mixed-stream recording.

    Used by actions: CreateCloudRecording, ModifyCloudRecording.

    Name Type Required Description
    MixLayoutMode Integer Yes Layout mode:
    1: Floating
    2: Screen sharing
    3: Grid (default)
    4: Custom

    Floating: By default, the video of the first anchor (you can also specify an anchor) who enters the room is scaled to fill the screen. When other anchors enter the room, their videos appear smaller and are superimposed over the large video from left to right starting from the bottom of the canvas according to their room entry sequence. If the total number of videos is 17 or less, there will be four windows in each row (4 x 4); if it is greater than 17, there will be five windows in each row (5 x 5). Up to 25 videos can be displayed. A user who publishes only audio will still be displayed in one window.

    Screen sharing: The video of a specified anchor occupies a larger part of the canvas on the left side (if you do not specify an anchor, the left window will display the canvas background). The videos of other anchors are smaller and are positioned on the right side. If the total number of videos is 17 or less, the small videos are positioned from top to bottom in up to two columns on the right side, with eight videos per column at most. If there are more than 17 videos, the additional videos are positioned at the bottom of the canvas from left to right. Up to 25 videos can be displayed. A user who publishes only audio will still be displayed in one window.

    Grid: The videos of anchors are scaled and positioned automatically according to the total number of anchors in a room. Each video has the same size. Up to 25 videos can be displayed.

    Custom: Specify the layout of videos by using the MixLayoutList parameter.
    MixLayoutList Array of MixLayout No The custom layout details. This parameter is valid if MixLayoutMode is set to 4. Up to 25 videos can be displayed.
    BackGroundColor String No The background color, which is a hexadecimal value (starting with "#", followed by the color value) converted from an 8-bit RGB value. For example, the RGB value of orange is R:255 G:165 B:0, and its hexadecimal value is #FFA500. The default color is black.
    MaxResolutionUserId String No The user whose video is displayed in the big window. This parameter is valid if MixLayoutMode is set to 1 (floating) or 2 (screen sharing). If it is left empty, the first anchor entering the room is displayed in the big window in the floating mode and the canvas background is displayed in the screen sharing mode.
    MediaId Integer No The stream type.
    0: Primary stream (default)
    1: Substream (screen sharing stream)
    This parameter specifies the type of the stream displayed in the big window. If it appears in MixLayoutList, it indicates the type of the stream of a specified user.
    BackgroundImageUrl String No The download URL of the background image for the canvas, which must be in JPG or PNG format and cannot be larger than 5 MB.
    PlaceHolderMode Integer No 1 means to use placeholders, and 0 (default) means to not use placeholders. If this parameter is set to 1, when a user is not publishing video, a placeholder image will be displayed in the window reserved for the user.
    BackgroundImageRenderMode Integer No The render mode to use when the aspect ratio of a video is different from that of the window. This parameter is defined the same as RenderMode in MixLayoufList.
    DefaultSubBackgroundImage String No The download URL of the default background image for a window. The image must be in JPG or PNG format and cannot be larger than 5 MB. If the image’s aspect ratio is different from that of the window, the image will be rendered according to the value of RenderMode.
    WaterMarkList Array of WaterMark No The watermark layout. Up to 25 watermarks are supported.

    MixTranscodeParams

    The audio and video parameters for recording.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    VideoParams VideoParams No The video transcoding parameters for recording. If you set this parameter, you must specify all its fields. If you do not set it, the default will be used.
    AudioParams AudioParams No The audio transcoding parameters for recording. If you set this parameter, you must specify all its fields. If you do not set it, the default will be used.

    RecordParams

    The on-cloud recording parameters.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    RecordMode Integer Yes The recording mode.
    1: Single-stream recording. Records the audio and video of each subscribed user (UserId) in a room and saves the recording files (M3U8/TS) to the cloud.
    2: Mixed-stream recording. Mixes the audios and videos of subscribed users (UserId) in a room, records the mixed stream, and saves the recording files (M3U8/TS) to the cloud.
    MaxIdleTime Integer No The time period (seconds) to wait after there are no anchors in a room to stop recording automatically. The value cannot be smaller than 5 or larger than 86400 (24 hours). Default value: 30.
    StreamType Integer No The media type of the streams to record.
    0: Audio and video streams (default)
    1: Audio streams only
    2: Video streams only
    SubscribeStreamUserIds SubscribeStreamUserIds No The allowlist/blocklist for stream subscription.
    OutputFormat Integer No The format of recording files. 0 (default): HLS; 1: HLS + MP4 (recorded in HLS and converted to MP4).

    StorageFile

    The information of the recording files, which is returned by the DescribeCloudRecording API.

    Used by actions: DescribeCloudRecording.

    Name Type Description
    UserId String The user whose stream is recorded into the file. In the mixed-stream recording mode, this parameter will be empty.
    Note: This field may return null, indicating that no valid values can be obtained.
    FileName String The filename.
    TrackType String The type of the media recorded.
    video
    audio
    audio_video
    Note: This field may return null, indicating that no valid values can be obtained.
    BeginTimeStamp Integer The start time (Unix timestamp) of the recording file.

    StorageParams

    The storage parameters.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    CloudStorage CloudStorage No The cloud storage information.
    CloudVod CloudVod No The VOD information.

    SubscribeStreamUserIds

    The subscription allowlist/blocklist. You cannot specify an allowlist and a blocklist for audio/video subscription at the same time. The maximum number of streams one can receive at the same time is 25. When streams are mixed, up to 24 videos are supported. You can use .*$ to specify user IDs with the same prefix, but make sure there aren’t users whose IDs contain ".*$" and are exactly the same as the prefix you pass in. If there are, TRTC will only allow or block those users.

    Used by actions: CreateCloudRecording, ModifyCloudRecording.

    Name Type Required Description
    SubscribeAudioUserIds Array of String No The allowlist for audio subscription. For example, ["1", "2", "3"] means to only subscribe to the audios of users 1, 2, and 3, and ["1.*$"] means to only subscribe to the audios of users whose ID prefix is 1. If this parameter is left empty, the audios of all anchors in the room will be received. The array can contain at most 32 elements.
    UnSubscribeAudioUserIds Array of String No The blocklist for audio subscription. For example, ["1", "2", "3"] means to not subscribe to the audios of users 1, 2, and 3, and ["1.*$"] means to not subscribe to users whose ID prefix is 1. If this parameter is left empty, the audios of all anchors in the room will be received. The array can contain at most 32 elements.
    SubscribeVideoUserIds Array of String No The allowlist for video subscription. For example, ["1", "2", "3"] means to only subscribe to the videos of users 1, 2, and 3, and ["1.*$"] means to only subscribe to the videos of users whose ID prefix is 1. If this parameter is left empty, the videos of all anchors in the room will be received. The array can contain at most 32 elements.
    UnSubscribeVideoUserIds Array of String No The blocklist for video subscription. For example, ["1", "2", "3"] means to not subscribe to the videos of users 1, 2, and 3, and ["1.*$"] means to not subscribe to the videos of users whose ID prefix is 1. If this parameter is left empty, the videos of all anchors in the room will be received. The array can contain at most 32 elements.

    TencentVod

    The Tencent Cloud VOD parameters.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    Procedure String No The operation to perform on the media uploaded. The value of this parameter is the name of a task flow template. You can create a custom task flow template in Tencent Cloud VOD.
    ExpireTime Integer No The expiration time of the media file, which is a time period (seconds) from the current time. For example, 86400 means to save the media file for one day. To save the file permanently, set this parameter to 0.
    StorageRegion String No The storage region. Set this parameter if you have special requirements on the storage region.
    ClassId Integer No The category ID, which is returned after you create a category by calling an API. You can use categories to manage media files.
    The default value is 0, which means others.
    SubAppId Integer No The VOD subapplication ID. If you need to access a resource in a subapplication, set this parameter to the subapplication ID; otherwise, leave it empty.
    SessionContext String No The task flow context, which is passed through after the task is completed.
    SourceContext String No The upload context, which is passed through after upload is completed.

    VideoParams

    The video transcoding parameters for recording.

    Used by actions: CreateCloudRecording.

    Name Type Required Description
    Width Integer Yes The video width in pixels. The value of this parameter cannot be larger than 1920, and the result of multiplying Width and Height cannot exceed 1920 x 1080. The default value is 360.
    Height Integer Yes The video height in pixels. The value of this parameter cannot be larger than 1920, and the result of multiplying Width and Height cannot exceed 1920 x 1080. The default value is 640.
    Fps Integer Yes The video frame rate. Value range: [1, 60]. Default: 15.
    BitRate Integer Yes The video bitrate (bps). Value range: [64000, 8192000]. Default: 550000.
    Gop Integer Yes The keyframe interval (seconds). Default value: 10.

    WaterMark

    The watermark layout.

    Used by actions: CreateCloudRecording, ModifyCloudRecording.

    Name Type Required Description
    WaterMarkType Integer No The watermark type. 0 (default): image; 1: text (not supported yet).
    WaterMarkImage WaterMarkImage No The information of watermark images. This parameter is required if the watermark type is image.

    WaterMarkImage

    The information of watermark images.

    Used by actions: CreateCloudRecording, ModifyCloudRecording.

    Name Type Required Description
    WaterMarkUrl String Yes The download URLs of the watermark images, which must be in JPG or PNG format and cannot be larger than 5 MB.
    Top Integer Yes The Y axis of the image's top-left corner. Value range: [0, 2560]. The value cannot be larger than the canvas height.
    Left Integer Yes The X axis of the image’s top-left corner. Value range: [0, 2560]. The value cannot be larger than the canvas width.
    Width Integer Yes The relative width of the image. Value range: [0, 2560]. The sum of the values of this parameter and Left cannot exceed the canvas width.
    Height Integer Yes The relative height of the image. Value range: [0, 2560]. The sum of the values of this parameter and Top cannot exceed the canvas height.
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