Intelligent Media Services：Transkoding dan pengemasan multi-track audio

Skenario 1: Transkode dan hasilkan paket multi-bitrate

{
  "Inputs": [
    {
      "Name": "video",
      "InputFile": {
        "Type": "OSS",
        "Media": "https://<Bucket>.<Public_Endpoint>/<video_1_chinese>"
      }
    },
    {
      "Name": "EnglishAudio",
      "InputFile": {
        "Type": "OSS",
        "Media": "https://<Bucket>.<Public_Endpoint>/<video_1_english>"
      }
    },
    {
      "Name": "JapaneseAudio",
      "InputFile": {
        "Type": "OSS",
        "Media": "https://<Bucket>.<Public_Endpoint>/<video_1_japanese>"
      }
    }
  ],
  "OutputGroups": [
    {
      "GroupConfig": {
        "Type": "Hls",
        "OutputFileBase": {
          "Type": "OSS",
          "Media": "https://<Bucket>.<Public_Endpoint>/<URI>/"
        },
        "ManifestName": "<m3u8_filename>"
      },
      "Outputs": [
        {
          "Name": "360P",
          "InputRef": "video",
          "OutputFileName": "video/360p/360p",
          "TemplateId": "Video-360P"
        },
        {
          "Name": "540P",
          "InputRef": "video",
          "OutputFileName": "video/540p/540p",
          "TemplateId": "Video-540P"
        },
        {
          "Name": "720P",
          "InputRef": "video",
          "OutputFileName": "video/720p/720p",
          "TemplateId": "Video-720P"
        },
        {
          "Name": "1080P",
          "InputRef": "video",
          "OutputFileName": "video/1080p/1080p",
          "TemplateId": "Video-1080P"
        },
        {
          "OutputFileName": "audio/chinese/chinese",
          "TemplateId": "Audio-64Kbps",
          "HlsGroupConfig": {
            "Name": "Chinese",
            "Type":"audio",
            "Language": "zh",
            "Autoselect": "TRUE",
            "Default": "TRUE"
          }
        },
        {
          "InputRef": "EnglishAudio",
          "OutputFileName": "audio/english/english",
          "TemplateId": "Audio-64Kbps",
          "HlsGroupConfig": {
            "Name": "English",
            "Type":"audio",
            "Language": "en",
            "Autoselect": "TRUE"
          }
        },
        {
          "InputRef": "JapaneseAudio",
          "OutputFileName": "audio/japanese/japanese",
          "TemplateId": "Audio-64Kbps",
          "HlsGroupConfig": {
            "Name": "Japanese",
            "Type":"audio",
            "Language": "ja",
            "Autoselect": "TRUE"
                    }
                }
            ]
        }
    ]
}

Skenario 2: Tambahkan track audio ke manifes HLS yang sudah ada

Langkah-langkah:

1. Tentukan input bernama ExtraAudio. Di output, rujuk input ini untuk mentranskode menjadi aliran HLS audio.

2. Atur InputRef di opsi ManifestExtend dalam GroupConfig untuk merujuk file RefManifest dari input. Hal ini menggunakan kembali manifes tersebut, sehingga Anda dapat menambahkan track audio tambahan berdasarkan manifes aslinya.

{
  "Inputs": [
    {
      "Name": "ExtraAudio",
      "InputFile": {
        "Type": "OSS",
        "Media": "http://your-bucket.oss-region.aliyuncs.com/in/extra-audio.mp4"
      }
    },
    {
      "Name": "RefManifest",
      "InputFile": {
        "Type": "OSS",
        "Media": "http://your-bucket.oss-region.aliyuncs.com/in/manifest.m3u8"
      }
    }
  ],
  "OutputGroups": [
    {
      "GroupConfig": {
        "Type": "Hls",
        "OutputFileBase": {
          "Type": "OSS",
          "Media": "http://your-bucket.oss-region.aliyuncs.com/out/demo"
        },
        "ManifestName": "manifest",
        "ManifestExtend": {
          "InputRef": "RefManifest"
        }
      },
      "Outputs": [
        {
          "Name": "ExtraAudioOut",
          "InputRef": "ExtraAudio",
          "OutputFileName": "extra-audio",
          "TemplateId": "#AudioTemplateId",
          "hlsGroupConfig": {
            "Type": "audio",
            "Name":"Chinese",
            "Language": "zh-cn"
          }
        }
      ]
    }
  ]
}

Skenario 3: Ganti track audio dalam manifes HLS yang sudah ada

Ini merupakan pengembangan dari Skenario 2. Tambahkan opsi Excludes di ManifestExtend untuk mengecualikan aliran tertentu dari manifes asli.

{
  "Inputs": [
    {
      "Name": "ExtraAudio",
      "InputFile": {
        "Type": "OSS",
        "Media": "http://your-bucket.oss-region.aliyuncs.com/in/extra-audio.mp4"
      }
    },
    {
      "Name": "RefManifest",
      "InputFile": {
        "Type": "OSS",
        "Media": "http://your-bucket.oss-region.aliyuncs.com/in/manifest.m3u8"
      }
    }
  ],
  "OutputGroups": [
    {
      "GroupConfig": {
        "Type": "Hls",
        "OutputFileBase": {
          "Type": "OSS",
          "Media": "http://your-bucket.oss-region.aliyuncs.com/out/demo"
        },
        "ManifestName": "manifest",
        "ManifestExtend": {
          "InputRef": "RefManifest",
          "Excludes": [{
              "Language": "en",
              "Type": "Audio"
            }]
        }
      },
      "Outputs": [
        {
          "Name": "ExtraAudioOut",
          "InputRef": "ExtraAudio",
          "OutputFileName": "extra-audio",
          "TemplateId": "#AudioTemplateId",
          "hlsGroupConfig": {
            "Type": "audio",
            "Name":"Chinese",
            "Language": "zh-cn"
          }
        }
      ]
    }
  ]
}