Queries the information about the mezzanine file of an audio or video. The information includes the mezzanine file URL, resolution, and bitrate of the audio or video.

Note You can obtain the complete mezzanine file information only after a stream is transcoded.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes GetMezzanineInfo

The operation that you want to perform. Set the value to GetMezzanineInfo.

VideoId String Yes 1f1a6fc03ca04*****814031b8a6559e

The ID of the video.
AuthTimeout Long No 3600

The validity period of the mezzanine file URL. Unit: seconds. Default value: 1800. Minimum value: 1.

  • If the OutputType parameter is set to cdn:
    • The mezzanine file URL has a validity period only if URL signing is enabled. Otherwise, the mezzanine file URL is permanently valid.
    • Minimum value: 1.
    • Maximum Value: unlimited.
    • Default value: If you do not set this parameter, the default validity period that is specified in URL signing is used.
  • If the OutputType parameter is set to oss:
    • The mezzanine file URL has a validity period only if the permissions on the Object Storage Service (OSS) bucket are private. Otherwise, the mezzanine file URL is permanently valid.
    • Minimum value: 1.
    • Maximum value: 2592000 (30 days). The maximum value is limited to reduce security risks of the origin.
    • Default value: If you do not set this parameter, the default value is 3600.
OutputType String No oss

The type of the mezzanine file URL. Valid values:

  • oss: OSS URL
  • cdn (default): Content Delivery Network (CDN) URL
Note If the mezzanine file is stored in a bucket of the in type, only an OSS URL is returned.
AdditionType String No video

The type of additional information. Separate multiple values with commas (,). By default, only the basic information is returned. Valid values:

  • video: video stream information
  • audio: audio stream information

Response parameters

Parameter Type Example Description
RequestId String 25818875-5F78-4A*****F6-D7393642CA58

The ID of the request.
Mezzanine Struct

The information about the mezzanine file.
AudioStreamList Array of AudioStream

The information about the audio stream.
Bitrate String 62.885

The bitrate.
ChannelLayout String mono

The output layout of the sound channels. Valid values:

  • mono: mono sound channel
  • stereo: two sound channels
Channels String 1

The number of sound channels.
CodecLongName String AAC (Advanced Audio Coding)

The full name of the codec format.
CodecName String aac

The short name of the codec format.
CodecTag String 0x6134706d

The tag of the codec format.
CodecTagString String mp4a

The tag string of the codec format.
CodecTimeBase String 1/44100

The codec time base.
Duration String 3.227574

The duration of the audio stream.
Index String 0

The sequence number of the audio stream, which specifies the position of the audio stream in all audio streams.

Lang String und

The language.
NumFrames String 1

The total number of frames.
SampleFmt String fltp

The sampling format.
SampleRate String 44100

The sample rate.
StartTime String 2017-01-11T12:00:00Z

The beginning of the time range that was queried. The time follows the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time is displayed in UTC.

Timebase String 0.000000

The time base.
Bitrate String 771.2280

The bitrate of the file. Unit: Kbit/s.
CreationTime String 2017-11-14T09:15:50Z

The time when the file was created. The time follows the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time is displayed in UTC.

Duration String 42.4930

The duration of the file. Unit: seconds.
FileName String cbf317e6c908cd1a224bd85d46978****.mp4

The name of the file.
FileURL String http://example.com/customerTrans/e2bf0614af0254c744a6422806ad8cff/457D396A-15FB9D03164-1389-0829-084-****.mp4?Expires=1513173337&OSSAccessKeyId=LTAIJ1n*****7cAL&Signature=ngisNAr27V%2FXBtNysLbt9ebYhzU%3D

The URL of the file.
Fps String 25.0000

The frame rate of the file. Unit: frames per second.
Height Long 540

The height of the file. Unit: pixel.
OutputType String oss

The type of the mezzanine file URL. Valid values:

  • oss: OSS URL
  • cdn (default): CDN URL
Note If you specify an OSS URL for the video stream, the video stream must be in the MP4 format.
Size Long 4096477

The size of the file. Unit: byte.
Status String Normal

The status of the file. Valid values:

  • Uploading: The file is being uploaded. This is the initial status.
  • Normal: The file is uploaded.
  • UploadFail: The file fails to be uploaded.
  • Deleted: The file is deleted.
VideoId String 73ad78c6a6cb446*****0f24c0e24d65

The ID of the video.
VideoStreamList Array of VideoStream

The information about the video stream.
AvgFPS String 30.0

The average frame rate.
Bitrate String 500

The bitrate of the file. Unit: Kbit/s.
CodecLongName String H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10

The full name of the codec format.
CodecName String h264

The short name of the codec format.
CodecTag String 0x31637661

The tag of the codec format.
CodecTagString String avc1

The tag string of the codec format.
CodecTimeBase String 1/60

The codec time base.
Dar String 0:1

The display aspect ratio.
Duration String 3.166667

The duration of the video stream.
Fps String 30.0

The target frame rate.
HasBFrames String 0

Indicates whether the video stream contains bidirectional frames (B-frames).
Height String 320

The height of the video resolution.
Index String 1

The sequence number of the video stream, which indicates the position of the video stream in all video streams.

Lang String und

The language.
Level String 30

The codec level.
NumFrames String 0

The total number of frames.
PixFmt String yuv420p

The pixel format.
Profile String Main

The codec profile.
Rotate String 90

The rotation angle of the video. Valid values: [0, 360).

Sar String 0:1

The sample aspect ratio.
StartTime String 2017-01-11T12:00:00Z

The beginning of the time range that was queried. The time follows the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time is displayed in UTC.

Timebase String 0.000000

The time base.
Width String 568

The width of the video resolution.
Width Long 960

The width of the file. Unit: pixel.

Examples

Sample requests

https://vod.{ApiRegion}.aliyuncs.com/?Action=GetMezzanineInfo
&VideoId=1f1a6fc03ca04*****814031b8a6559e
&<Common request parameters>

Sample success responses

XML format 

<GetMezzanineInfoResponse>
  <RequestId>25818875-5F78-4A*****F6-D7393642CA58</RequestId>
  <Mezzanine>
        <Status>Normal</Status>
        <VideoId>73ad78c6a6cb446*****0f24c0e24d65</VideoId>
        <CRC64>461bb6d0f24c0e24d65</CRC64>
        <Size>4096477</Size>
        <FileName>cbf317e6c908cd1a224bd85d46978****.mp4</FileName>
        <Fps>25.0000</Fps>
        <Duration>42.4930</Duration>
        <VideoStreamList>
              <CodecTag>0x31637661</CodecTag>
              <CodecTimeBase>1/60</CodecTimeBase>
              <Rotate>90</Rotate>
              <Sar>0:1</Sar>
              <StartTime>2017-01-11T12:00:00Z</StartTime>
              <Fps>30.0</Fps>
              <Lang>und</Lang>
              <Duration>3.166667</Duration>
              <Index>1</Index>
              <PixFmt>yuv420p</PixFmt>
              <Bitrate>500</Bitrate>
              <CodecName>h264</CodecName>
              <AvgFPS>30.0</AvgFPS>
              <Profile>Main</Profile>
              <Timebase>0.000000</Timebase>
              <HasBFrames>0</HasBFrames>
              <CodecTagString>avc1</CodecTagString>
              <Dar>0:1</Dar>
              <CodecLongName>H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10</CodecLongName>
              <Level>30</Level>
              <Height>320</Height>
              <NumFrames>0</NumFrames>
              <Width>568</Width>
        </VideoStreamList>
        <AudioStreamList>
              <CodecTag>0x6134706d</CodecTag>
              <CodecTimeBase>1/44100</CodecTimeBase>
              <ChannelLayout>mono</ChannelLayout>
              <StartTime>2017-01-11T12:00:00Z</StartTime>
              <Lang>und</Lang>
              <Duration>3.227574</Duration>
              <Index>0</Index>
              <SampleFmt>fltp</SampleFmt>
              <Bitrate>62.885</Bitrate>
              <CodecName>aac</CodecName>
              <Channels>1</Channels>
              <Timebase>0.000000</Timebase>
              <CodecTagString>mp4a</CodecTagString>
              <SampleRate>44100</SampleRate>
              <CodecLongName>AAC (Advanced Audio Coding)</CodecLongName>
              <NumFrames>1</NumFrames>
        </AudioStreamList>
        <Bitrate>771.2280</Bitrate>
        <PreprocessStatus>UnPreprocess</PreprocessStatus>
        <FileURL>http://example.com/customerTrans/e2bf0614af0254c744a6422806ad8cff/457D396A-15FB9D03164-1389-0829-084-****.mp4?Expires=1513173337&amp;OSSAccessKeyId=LTAIJ1n*****7cAL&amp;Signature=ngisNAr27V%2FXBtNysLbt9ebYhzU%3D</FileURL>
        <CreationTime>2017-11-14T09:15:50Z</CreationTime>
        <Height>540</Height>
        <Width>960</Width>
        <OutputType>oss</OutputType>
  </Mezzanine>
</GetMezzanineInfoResponse>

JSON format 

{
    "RequestId": "25818875-5F78-4A*****F6-D7393642CA58",
    "Mezzanine": {
        "Status": "Normal",
        "VideoId": "73ad78c6a6cb446*****0f24c0e24d65",
        "CRC64": "461bb6d0f24c0e24d65",
        "Size": "4096477",
        "FileName": "cbf317e6c908cd1a224bd85d46978****.mp4",
        "Fps": "25.0000",
        "Duration": "42.4930",
        "VideoStreamList": [{
            "CodecTag": "0x31637661",
            "CodecTimeBase": "1/60",
            "Rotate": "90",
            "Sar": "0:1",
            "StartTime": "2017-01-11T12:00:00Z",
            "Fps": "30.0",
            "Lang": "und",
            "Duration": "3.166667",
            "Index": "1",
            "PixFmt": "yuv420p",
            "Bitrate": "500",
            "CodecName": "h264",
            "AvgFPS": "30.0",
            "Profile": "Main",
            "Timebase": "0.000000",
            "HasBFrames": "0",
            "CodecTagString": "avc1",
            "Dar": "0:1",
            "CodecLongName": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "Level": "30",
            "Height": "320",
            "NumFrames": "0",
            "Width": "568"
        }],
        "AudioStreamList": [{
            "CodecTag": "0x6134706d",
            "CodecTimeBase": "1/44100",
            "ChannelLayout": "mono",
            "StartTime": "2017-01-11T12:00:00Z",
            "Lang": "und",
            "Duration": "3.227574",
            "Index": "0",
            "SampleFmt": "fltp",
            "Bitrate": "62.885",
            "CodecName": "aac",
            "Channels": "1",
            "Timebase": "0.000000",
            "CodecTagString": "mp4a",
            "SampleRate": "44100",
            "CodecLongName": "AAC (Advanced Audio Coding)",
            "NumFrames": "1"
        }],
        "Bitrate": "771.2280",
        "PreprocessStatus": "UnPreprocess",
        "FileURL": "http://example.com/customerTrans/e2bf0614af0254c744a6422806ad8cff/457D396A-15FB9D03164-1389-0829-084-****.mp4?Expires=1513173337&OSSAccessKeyId=LTAIJ1n*****7cAL&Signature=ngisNAr27V%2FXBtNysLbt9ebYhzU%3D",
        "CreationTime": "2017-11-14T09:15:50Z",
        "Height": "540",
        "Width": "960",
        "OutputType": "oss"
    }
}

Error codes

For a list of error codes, visit the API Error Center.

Common errors

The following table describes the common errors that this operation can return.

Error code

Error message

HTTP status code

Description

InvalidVideo.NotFound

The video does not exist.

404

The error message returned because the specified video ID does not exist.

InvalidFile.NotFound

The file does not exist.

404

The error message returned because the specified video mezzanine file does not exist.

SDK examples

We recommend that you use a server SDK to call this operation. For more information about the sample code that is used to call this operation in various languages, see the following topics: