Anyone used AWS Elastic Transcoder to transcode .mjr files to .mp4?

[Anil Wadghule]

Hello,

Has anyone used to AWS Elastic Transcoder service to transcode .mjr files to .mp4? (@Lorenzo?)

Is this even possible?

Fore more info about AWS Elastic Transcoder here are more links

https://aws.amazon.com/elastictranscoder/

https://aws.amazon.com/about-aws/whats-new/2016/04/amazon-elastic-transcoder-adds-support-for-vp9/ 

Thank you,

Anil

[Anil Wadghule]

Foks, 

Here is what I got 

https://docs.aws.amazon.com/elastictranscoder/latest/developerguide/list-presets.html

 "Container":"flac|flv|fmp4|gif|mp3|mp4|mpg|mxf|oga|ogg|ts|wav|webm",

         "Audio":{

            "Codec":"AAC|flac|mp2|mp3|pcm|vorbis",

            "CodecOptions":{

               "Profile":"auto|AAC-LC|HE-AAC|HE-AACv2",

               "BitDepth":"8|16|24|32",

               "Signed":"Signed|Unsigned",

               "BitOrder":"LittleEndian"

            },

            "SampleRate":"auto|22050|32000|44100|48000|96000",

            "BitRate":"audio bit rate of output file in kilobits/second",

            "Channels":"auto|0|1|2",

            "AudioPackingMode":"SingleTrack|OneChannelPerTrack|

               OneChannelPerTrackWithMosTo8Tracks"

         },

         "Video":{

            "Codec":"gif|H.264|mpeg2|vp8|vp9",

            "CodecOptions":{

               "Profile":"baseline|main|high|0|1|2|3",

               "Level":"1|1b|1.1|1.2|1.3|2|2.1|2.2|

                  3|3.1|3.2|4|4.1",

               "MaxReferenceFrames":"maximum number of reference frames",

               "MaxBitRate":"maximum bit rate",

               "BufferSize":"maximum buffer size",

               "InterlacedMode":"Progressive|TopFirst|BottomFirst|Auto",

               "ColorSpaceConversion":"None|Bt709ToBt601|Bt601ToBt709|Auto",

               "ChromaSubsampling":"yuv420p|yuv422p",

               "LoopCount":"Infinite|[0,100]"

            },

Can someone here confirm whether above container types is good for converting .webm/mp4 (video) and opus (audio) files to .mp4?

I don't see .opus listed above .. so wondering it may not work.

Thanks,

Anil

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Best,

Anil

[Anil Wadghule]

Here is one more link

https://docs.aws.amazon.com/elastictranscoder/latest/developerguide/create-preset.html

Thanks,

Anil

--

Best,

Anil

[Gábor Tóth]

I think no, you cant use it. Mjr is a specific janus file format, not a common media container.
You have to use janus-pp-rec to create webm or mkv files from mjr files. Don't worry there are no heavy cpu usage, there is no transcoding.