Is it possible to convert aac audio to mp3 without conversion

[Alex Bolotin]

Is there any parameter I have to set? Cause today I've tried some ways I
knew. But with no luck.

Thx,
AlexB
On May 5, 2016 11:29 PM, "Sebastian Dröge" <sebastian at centricular.com>
wrote:

> On Do, 2016-05-05 at 20:33 +0300, Alex Bolotin wrote:
> > Hi,
> >
> > I know that I could use a pipeline that decodes audio, converts it
> > into something I need, but I'm curious if there is a way to do it
> > without decodeing/encoding.
>
> You can't convert MP3 to AAC or the other way around without
> reencoding. The formats are too different.
>
> > I wonder if gstreamer can do smth like ffmpeg is capable of - ffmpeg
> > -i 1.ts -c copy -bsf:a aac_adtstoasc -y output.mp4
>
> That ffmpeg command is not converting MP3 to AAC without reencoding.
> What it does is to convert MPEG2/4 ADTS AAC to raw MPEG4 AAC with the
> configuration box required by MP4.
>
> In GStreamer, the aacparse element would do that.
>
> --
> Sebastian Dröge, Centricular Ltd · http://www.centricular.com
>
>
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