Proper CMAF config for media convert

Question

I am using AWS lambda to create a job for media convert (using python). I was convert an input video in CMAF H265 format, but I am unable to figure out the correct settings for this. The createJob function returns an error :

`botocore.errorfactory.BadRequestException: An error occurred (BadRequestException) when calling the CreateJob operation: /outputGroups/0/outputs/0: Should match exactly one schema defined in "oneOf"`

The error displayed in log files of  lambda has only this information and does not mention the exact fields which are missing the validation. When i compare my config with the sdk code, I am unable to find the possible error. Please help here.

Since the error is in outputs, including the corresponding object:

```
{
            "ContainerSettings": {
              "Container": "CMFC",
                  "CmfcSettings": {
                       "IFrameOnlyManifest": "EXCLUDE"
              }
            },
            "VideoDescription": {
              "Width": 468,
              "ScalingBehavior": "DEFAULT",
              "Height": 264,
              "TimecodeInsertion": "DISABLED",
              "AntiAlias": "ENABLED",
              "Sharpness": 50,
              "CodecSettings": {
                "Codec": "H_265",
                "H265Settings": {
                  "InterlaceMode": "PROGRESSIVE",
                  "NumberReferenceFrames": 3,
                  "GopClosedCadence": 1,
                  "GopSize": 90,
                  "Slices": 1,
                  "GopBReference": "DISABLED",
                  "SlowPal": "DISABLED",
                  "SpatialAdaptiveQuantization": "ENABLED",
                  "TemporalAdaptiveQuantization": "ENABLED",
                  "FlickerAdaptiveQuantization": "DISABLED",
                  "FramerateControl": "INITIALIZE_FROM_SOURCE",
                  "RateControlMode": "QVBR",
                  "QvbrSettings": {
                    "QvbrQualityLevel": 7
                  },
                  "MaxBitrate": 500000,
                  "CodecProfile": "MAIN_HIGH",
                  "CodecLevel": "LEVEL_3",
                  "Telecine": "NONE",
                  "MinIInterval": 0,
                  "AdaptiveQuantization": "HIGH",
                  "SceneChangeDetect": "ENABLED",
                  "QualityTuningLevel": "SINGLE_PASS_HQ",
                  "FramerateConversionAlgorithm": "DUPLICATE_DROP",
                  "UnregisteredSeiTimecode": "DISABLED",
                  "GopSizeUnits": "FRAMES",
                  "ParControl": "INITIALIZE_FROM_SOURCE",
                  "NumberBFramesBetweenReferenceFrames": 2,
                  "WriteMp4PackagingType":"HEV1"
                }
              },
              "AfdSignaling": "NONE",
              "DropFrameTimecode": "ENABLED",
              "RespondToAfd": "NONE",
              "ColorMetadata": "INSERT"
            },
            "AudioDescriptions": [
              {
                "AudioTypeControl": "FOLLOW_INPUT",
                "CodecSettings": {
                  "Codec": "AAC",
                  "AacSettings": {
                    "AudioDescriptionBroadcasterMix": "NORMAL",
                    "Bitrate": 96000,
                    "RateControlMode": "CBR",
                    "CodecProfile": "LC",
                    "CodingMode": "CODING_MODE_2_0",
                    "RawFormat": "NONE",
                    "SampleRate": 48000,
                    "Specification": "MPEG4"
                  }
                },
                "LanguageCodeControl": "FOLLOW_INPUT"
              }
            ],
            "NameModifier": "_468"
          }
```

Answer

Hi there,

Looking at your Output config JSON, I see that you have **MUXED** the Video and Audio for your CMAF output.
What that means is that you have included the Video and Audio under a single output. Currently it looks like this:

```
CMAF Output Group: |
                   . -> Output-1:|
                                 . ->Video-Data,
                                 . ->Audio-Data
```

Per CMAF architecture, this is an incorrect way of designing a CMAF stream. The correct way would be to produce the same Video and Audio parameters, but in their separate outputs. This should look something like this:
```
CMAF Output Group: |
                   . -> Output-1:|
                                 . ->Video-Data
                   . -> Output-2:|
                                 . ->Audio-Data
```
You may try the following Output JSON instead of the one shared above:
```
{
    "ContainerSettings": {
        "Container": "CMFC",
        "CmfcSettings": {
            "IFrameOnlyManifest": "EXCLUDE"
        }
    },
    "VideoDescription": {
        "Width": 468,
        "ScalingBehavior": "DEFAULT",
        "Height": 264,
        "TimecodeInsertion": "DISABLED",
        "AntiAlias": "ENABLED",
        "Sharpness": 50,
        "CodecSettings": {
            "Codec": "H_265",
            "H265Settings": {
                "InterlaceMode": "PROGRESSIVE",
                "NumberReferenceFrames": 3,
                "GopClosedCadence": 1,
                "GopSize": 90,
                "Slices": 1,
                "GopBReference": "DISABLED",
                "MaxBitrate": 500000,
                "SlowPal": "DISABLED",
                "SpatialAdaptiveQuantization": "ENABLED",
                "TemporalAdaptiveQuantization": "ENABLED",
                "FlickerAdaptiveQuantization": "DISABLED",
                "FramerateControl": "INITIALIZE_FROM_SOURCE",
                "RateControlMode": "QVBR",
                "QvbrSettings": {
                    "QvbrQualityLevel": 7
                },
                "CodecProfile": "MAIN_HIGH",
                "Telecine": "NONE",
                "MinIInterval": 0,
                "AdaptiveQuantization": "HIGH",
                "CodecLevel": "LEVEL_3",
                "SceneChangeDetect": "ENABLED",
                "QualityTuningLevel": "SINGLE_PASS_HQ",
                "FramerateConversionAlgorithm": "DUPLICATE_DROP",
                "UnregisteredSeiTimecode": "DISABLED",
                "GopSizeUnits": "FRAMES",
                "ParControl": "INITIALIZE_FROM_SOURCE",
                "NumberBFramesBetweenReferenceFrames": 2,
                "WriteMp4PackagingType": "HEV1"
            }
        },
        "AfdSignaling": "NONE",
        "DropFrameTimecode": "ENABLED",
        "RespondToAfd": "NONE",
        "ColorMetadata": "INSERT"
    },
    "NameModifier": "_468"
}, {
    "ContainerSettings": {
        "Container": "CMFC",
        "CmfcSettings": {
            "IFrameOnlyManifest": "EXCLUDE"
        }
    },
    "AudioDescriptions": [{
        "AudioTypeControl": "FOLLOW_INPUT",
        "AudioSourceName": "Audio Selector 1",
        "CodecSettings": {
            "Codec": "AAC",
            "AacSettings": {
                "AudioDescriptionBroadcasterMix": "NORMAL",
                "Bitrate": 96000,
                "RateControlMode": "CBR",
                "CodecProfile": "LC",
                "CodingMode": "CODING_MODE_2_0",
                "RawFormat": "NONE",
                "SampleRate": 48000,
                "Specification": "MPEG4"
            }
        },
        "LanguageCodeControl": "FOLLOW_INPUT"
    }],
    "NameModifier": "_468"
}
```

Proper CMAF config for media convert

相關內容