MPEG2 With 4 Channels of Audio

[Cooper0505]

Hi guys,

I'm looking for a way to encode a bunch of Prores files to MPEG2. I can use FFMPEGX or Adobe Media Encoder, however, this method only suports 2 channels of audio. I need to make them with 4 channels (either 2xstereo or 4xdiscrete). Does anyone know of a method to do this?

Thanks!

[poisondeathray]

I assume you mean MPEG2 video compression , but what container MPEG2-PS? MOV? MXF ? or did you mean MPEG2 Transport Stream ? (MTS, M2TS, TS)

Is this SD (e.g. IMX50) , or HD (e.g. XDCAM) ? 422 or 420 subsampling ?

You should be able to use ffmbc (CLI usage, but it has presets for XDCAM and IMX50 with 4+ channels), but it sounds like you're on a mac (I don't know if anybody has successfully compiled it for a mac)

[Cooper0505]

I assume you mean MPEG2 video compression , but what container MPEG2-PS? MOV? MXF ? or did you mean MPEG2 Transport Stream ? (MTS, M2TS, TS)

Is this SD (e.g. IMX50) , or HD (e.g. XDCAM) ? 422 or 420 subsampling ?

You should be able to use ffmbc (CLI usage, but it has presets for XDCAM and IMX50 with 4+ channels), but it sounds like you're on a mac (I don't know if anybody has successfully compiled it for a mac)

Yes, MPEG2 compression (4:2:2 Profile) in a MPG container. SD files.

[poisondeathray]

Do you have access to linux or pc ?

http://code.google.com/p/ffmbc/wiki/IMXD10Encoding

There are precompiled windows binaries here
http://code.google.com/p/ffmbc/downloads/list

[yoda313]

Just playing devils advocate here but are you intending to make a dvd with this file? If so I'm not sure how it will respond to that kind of audio.

You should consider looking for dolby pro logic encoders for non 5.1 mixing. I don't have much experience working with it but the dvd specs want dolby ac3, pcm or dts audio on it. I'm not sure if this form of stereo you are trying to create will be fully compatible with most standard surround amplifiers.

However if you are strictly in a computer playback environment and aren't conforming to something strict like the dvd spec than it won't matter as much so long as you have a software player that will recognize the audio you throw at it.

Edit - and I don't pretend to be a total expert on this matter so if this form of stereo you are trying to convert to IS compatible with the dvd spec than you can proceed as planned. And again if you aren't making a dvd than it won't really matter.

[Cornucopia]

I assume you mean MPEG2 video compression , but what container MPEG2-PS? MOV? MXF ? or did you mean MPEG2 Transport Stream ? (MTS, M2TS, TS)

Is this SD (e.g. IMX50) , or HD (e.g. XDCAM) ? 422 or 420 subsampling ?

You should be able to use ffmbc (CLI usage, but it has presets for XDCAM and IMX50 with 4+ channels), but it sounds like you're on a mac (I don't know if anybody has successfully compiled it for a mac)

Yes, MPEG2 compression (4:2:2 Profile) in a MPG container. SD files.

There is no "mpeg container". There is mpeg1 system stream, mpeg2 program stream, mpeg2 transport stream, or mp4 container.

And 4:2:2 profile is not a standard consumer profile. It is only/mainly used for master/intermediate edit files. So it really comes back to: what do you intend to do with these files?

Scott