Lightweight HD

Prerequisites

• An AccessKey pair is created and obtained. For more information, see Create an AccessKey pair.

• Object Storage Service (OSS) is activated and a bucket is created. For more information, see Create a bucket.

• IMM is activated. For more information, see Activate IMM.

• A project is created in the IMM console. For more information, see Create a project.

  Note

  • You can call the CreateProject operation to create a project. For more information, see CreateProject.

  • You can call the ListProjects operation to list information of all projects in a region.

Step 1: Upload a file

Use the OSS console to upload your media file to the bucket in the same region as your IMM project.

On the upload page, File ACL defaults to Inherit Bucket. Click Scan Files to select the media file you want to upload. Uploaded files must not exceed 5 GB. For files larger than 5 GB, use ossutil, the OSS SDK, or the OSS API.

Step 2: Use IMM Lightweight HD

Invoke the Create Media Transcoding Job API to create a video transcoding job and enable VideoSlim.

H.264 VBR configuration with Lightweight HD

Use H.264 encoding without changing resolution, frame rate, or other video parameters.

Transcoding details

• Video format: mov → mp4

• Video settings: Codec is H.264, Bitrate is 3000 kbps, VideoSlim enabled, original resolution and frame rate preserved

• Audio settings: AAC codec, 96 kbps bitrate, stereo, 44.1 kHz sample rate

• Output path: oss://test-bucket/video-demo/seaside-skyscrapers.mp4

• Completion notification: Send an MNS message to the MNS topic “test-mns-topic”

For an SDK example, see OpenAPI Explorer. Enable VideoSlim and adjust parameters as needed before testing.

Request parameters

{
  "ProjectName": "test-project",
  "Notification": {
    "MNS": {
      "TopicName": "test-mns-topic"
    }
  },
  "Sources": [
    {
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.mov"
    }
  ],
  "Targets": [
    {
      "Audio": {
        "TranscodeAudio": {
          "Bitrate": 96000,
          "Channel": 2,
          "Codec": "aac",
          "SampleRate": 44100
        }
      },
      "Container": "mp4",
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.mp4",
      "Video": {
        "TranscodeVideo": {
          "VideoSlim":1,
          "Bitrate":"3000000",
          "Codec": "h264",
          "PixelFormat": "yuv420p"
        }
      }
    }
  ]
}

H.264 CRF configuration with Lightweight HD

Use H.264 encoding with a target resolution of 640×480 and frame rate of 60 fps. If the source video has a lower frame rate, use the source value.

Transcoding details

• Video format: mov → mp4

• Video settings: Codec is H.264, CRF is 25, VideoSlim enabled

• Audio settings: AAC codec, 96 kbps bitrate, stereo, 44.1 kHz sample rate

• Output path: oss://test-bucket/video-demo/seaside-skyscrapers.mp4

• Completion notification: Send an MNS message to the MNS topic “test-mns-topic”

For an SDK example, see OpenAPI Explorer. The example parameters are pre-filled. Modify them as needed before testing.

Request parameters

{
  "ProjectName": "test-project",
  "Notification": {
    "MNS": {
      "TopicName": "test-mns-topic"
    }
  },
  "Sources": [
    {
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.mov"
    }
  ],
  "Targets": [
    {
      "Audio": {
        "TranscodeAudio": {
          "Bitrate": 96000,
          "Channel": 2,
          "Codec": "aac",
          "SampleRate": 44100
        }
      },
      "Container": "mp4",
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.mp4",
      "Video": {
        "TranscodeVideo": {
          "VideoSlim":1,
          "Codec": "h264",
          "Resolution":"640x480",
          "FrameRateOption":"adaptive",          
          "CRF":"25",
          "FrameRate": "60",
          "PixelFormat": "yuv420p"
        }
      }
    }
  ]
}

H.265 VBR configuration with Lightweight HD

Encode video using H.265. If the source video has a lower frame rate, use the source value.

Transcoding details

• Video format: mov → mp4

• Video settings: H.265 codec, Bitrate 3000 kbps, resolution 1920×1080, frame rate 60

• Audio settings: AAC codec, 128 kbps bitrate, stereo, 44.1 kHz sample rate

• Output path: oss://test-bucket/video-demo/seaside-skyscrapers.mp4

• Completion notification: Send an MNS message to the MNS topic “test-mns-topic”

For an SDK example, see OpenAPI Explorer. The example parameters are pre-filled. Modify them as needed before testing.

Request parameters

{
  "ProjectName": "test-project",
  "Notification": {
    "MNS": {
      "TopicName": "test-mns-topic"
    }
  },
  "Sources": [
    {
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.mov"
    }
  ],
  "Targets": [
    {
      "Audio": {
        "TranscodeAudio": {
          "Bitrate": 96000,
          "Channel": 2,
          "Codec": "aac",
          "SampleRate": 44100
        }
      },
      "Container": "mp4",
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.mp4",
      "Video": {
        "TranscodeVideo": {
          "VideoSlim":1,
          "Bitrate":"3000000",
          "Codec": "h265",
          "FrameRateOption":"adaptive",
          "FrameRate":"60",
          "PixelFormat": "yuv420p"
        }
      }
    }
  ]
}

H.265 CRF configuration with Lightweight HD

Transcode the video to H.265 at 1920×1080 resolution and 30 fps. Use HLS segmentation. If the source video has lower resolution, use the source value.

Transcoding details

• Video format: mov → m3u8

• Segmentation: HLS format, segment length 10 seconds

• Video settings: H.265 codec, CRF 25, resolution 1920×1080, frame rate 30

• Audio settings: AAC codec, 128 kbps bitrate, stereo, 44.1 kHz sample rate

• Output paths: oss://test-bucket/video-demo/seaside-skyscrapers.m3u8, oss://test-bucket/video-demo/seaside-skyscrapers-%d.ts

• Completion notification: Send an MNS message to the MNS topic “test-mns-topic”

For an SDK example, see OpenAPI Explorer. The example parameters are pre-filled. Modify them as needed before testing.

Request parameters

{
  "ProjectName": "test-project",
  "Notification": {
    "MNS": {
      "TopicName": "test-mns-topic"
    }
  },
  "Sources": [
    {
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.mov"
    }
  ],
  "Targets": [
    {
      "Audio": {
        "TranscodeAudio": {
          "Bitrate": 128000,
          "Channel": 2,
          "Codec": "aac",
          "SampleRate": 44100
        }
      },
      "Container": "ts",
      "Segment": {
        "Duration": 10,
        "Format": "hls"
      },
      "URI": "oss://test-bucket/video-demo/seaside-skyscrapers.{autoext}",
      "Video": {
        "TranscodeVideo": {
          "AdaptiveResolutionDirection": true,
          "Codec": "h265",
          "VideoSlim":1,
          "CRF": 25,
          "FrameRate": 30,
          "PixelFormat": "yuv420p",
          "Resolution": "1920x1080",
          "ResolutionOption": "adaptive",
          "ScaleType": "fit"
        }
      }
    }
  ]
}