tencent cloud

1. API Description

Domain name for API request: vod.tencentcloudapi.com.

This API is used to compose a media file. You can use it to do the following:

1. Rotation/Flipping: Rotate a video or image by a specific angle or flip a video or image.
2. Audio control: Increase/Lower the volume of an audio/video file or mute an audio/video file.
3. Overlaying: Overlay videos/images in a specified sequence to achieve the picture-in-picture effect.
4. Audio mixing: Mix the audios of audio/video files.
   5 Audio extraction: Extract audio from a video.
5. Clipping: Clip segments from audio/video files according to a specified start and end time.
6. Splicing: Splice videos/audios/images in a specified sequence.
7. Transition: Add transition effects between video segments or images that are spliced together.

The output file is in MP4 or MP3 format. In the callback for media composition, the event type is ComposeMediaComplete.

A maximum of 100 requests can be initiated per second for this API.

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

3. Output Parameters

4. Example

Example1 Add new audio to video

Eliminate the original audio of 5285485487985271487, use 5285485487985271488 for dubbing starting from 5 seconds, use 2 to 16 seconds of 5285485487985271489 starting from 20 seconds for dubbing, and generate a new video.

Input Example

POST / HTTP/1.1
Host: vod.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: ComposeMedia
<Public request parameters>

{
    "Output": {
        "Container": "mp4",
        "FileName": "test"
    },
    "Tracks": [
        {
            "TrackItems": [
                {
                    "Type": "Empty",
                    "EmptyItem": {
                        "Duration": "5"
                    }
                },
                {
                    "AudioItem": {
                        "SourceMedia": "5285485487985271488",
                        "Duration": "15"
                    },
                    "Type": "Audio"
                },
                {
                    "AudioItem": {
                        "Duration": "14",
                        "SourceMedia": "5285485487985271489",
                        "SourceMediaStartTime": "2"
                    },
                    "Type": "Audio"
                }
            ],
            "Type": "Audio"
        },
        {
            "TrackItems": [
                {
                    "Type": "Video",
                    "VideoItem": {
                        "SourceMedia": "5285485487985271487",
                        "AudioOperations": [
                            {
                                "VolumeParam": {
                                    "Mute": "1"
                                },
                                "Type": "Volume"
                            }
                        ]
                    }
                }
            ],
            "Type": "Video"
        }
    ]
}

Output Example

{
    "Response": {
        "RequestId": "6ca31e3a-6b8e-4b4e-9256-fdc700064ef3",
        "TaskId": "125xxx65-ComposeMedia-bffb15f07530b57bc1aabb01fac74bca"
    }
}

Example2 Crop and splice two video streams together

Take the 2nd to 62nd second of 5285485487985271487 and the 6th to 81st second of 5285485487985271488 for splicing. Set a 5-second fade-in and fade-out transition in the middle. Paste a picture 5285485487985271489 from 3 seconds to 18 seconds of the video. The position is (20px , 20px), width and height (100px, 100px).

Input Example

POST / HTTP/1.1
Host: vod.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: ComposeMedia
<Public request parameters>

{
    "Output": {
        "Container": "mp4",
        "FileName": "test"
    },
    "Tracks": [
        {
            "TrackItems": [
                {
                    "StickerItem": {
                        "CoordinateOrigin": "TopLeft",
                        "XPos": "20px",
                        "YPos": "20px",
                        "Height": "100px",
                        "Width": "100px",
                        "StartTime": "3",
                        "Duration": "15",
                        "SourceMedia": "5285485487985271489"
                    },
                    "Type": "Sticker"
                }
            ],
            "Type": "Sticker"
        },
        {
            "TrackItems": [
                {
                    "TransitionItem": {
                        "Duration": "5",
                        "MediaTransitions": [
                            {
                                "Type": "ImageFadeInFadeOut"
                            }
                        ]
                    },
                    "Type": "Transition"
                },
                {
                    "Type": "Video",
                    "VideoItem": {
                        "Duration": "60",
                        "SourceMedia": "5285485487985271487",
                        "SourceMediaStartTime": "2"
                    }
                },
                {
                    "Type": "Video",
                    "VideoItem": {
                        "Duration": "75",
                        "SourceMedia": "5285485487985271488",
                        "SourceMediaStartTime": "6"
                    }
                }
            ],
            "Type": "Video"
        }
    ]
}

Output Example

{
    "Response": {
        "RequestId": "6ca31e3a-6b8e-4b4e-9256-fdc700064ef3",
        "TaskId": "125xxx65-ComposeMedia-bffb15f07530b57bc1aabb01fac74bc2"
    }
}

Example3 Use one video as a picture-in-picture for another video

Use the video of 5285485487985271487 as the main picture of the picture-in-picture; use the video of 5285485487985271488 as the sub-picture of the picture-in-picture; the center of the sub-picture is offset by 25% of the main picture (that is, in the lower right corner of the main picture), and the width accounts for 30% of the picture.

Input Example

POST / HTTP/1.1
Host: vod.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: ComposeMedia
<Public request parameters>

{
    "Output": {
        "Container": "mp4",
        "FileName": "test"
    },
    "Tracks": [
        {
            "TrackItems": [
                {
                    "Type": "Video",
                    "VideoItem": {
                        "CoordinateOrigin": "Center",
                        "Width": "30%",
                        "SourceMedia": "5285485487985271488",
                        "XPos": "25%",
                        "YPos": "25%"
                    }
                }
            ],
            "Type": "Video"
        },
        {
            "TrackItems": [
                {
                    "Type": "Video",
                    "VideoItem": {
                        "SourceMedia": "5285485487985271487"
                    }
                }
            ],
            "Type": "Video"
        }
    ]
}

Output Example

{
    "Response": {
        "RequestId": "6ca31e3a-6b8e-4b4e-9256-fdc700064ef3",
        "TaskId": "125xxx65-ComposeMedia-bffb15f07530b57bc1aabb01fac74bca"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

• Tencent Cloud SDK 3.0 for Python
• Tencent Cloud SDK 3.0 for Java
• Tencent Cloud SDK 3.0 for PHP
• Tencent Cloud SDK 3.0 for Go
• Tencent Cloud SDK 3.0 for Node.js
• Tencent Cloud SDK 3.0 for .NET
• Tencent Cloud SDK 3.0 for C++

Command Line Interface

• Tencent Cloud CLI 3.0

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.