Encoding versus Passthru CLI Question

[lagman]

I'm writing a generic script to transcode my videos so they will play on my Roku. I've been able to get everything working perfectly except audio. I'd like to do something similar to this:

IF source audio format is ac3 or faac
passthru audio
ELSE
transcode to faac

Is this possible via the CLI? I've tried copy:ac3 and that works if the source is ac3 but if it is anything else the audio doesn't get encoded.

Thanks,
Dan

Just an update, I decided to always pass through ac3 on track 1 and always mixdown to faac on track 2. It takes more processing power and results in a larger file if the source has an ac3 track but it does the job.

[Kebast]

Have you tried the --audio-copy-mask and --audio-failback commands?

[Deleted User 11865]

Have you tried the --audio-copy-mask and --audio-failback commands?

More specifically, you need to use the nightly build (see the announcement at the top of every subforum):

Code: Select all

--aencoder copy --audio-copy-mask ac3,aac --audio-fallback faac

[lagman]

fallback.. yes! that works! I've been spinning my wheels on this for two weeks. Thanks!