audio AAC to MP4 conversion fails

[Romeo Chahine]

Tim,

mp4mux does only take raw audio, but i initially thought that aacparse would be capable of taking in aac with adts header and outputing raw audio to mp4mux.

I'm trying to avoid any extra encoding or decoding of the initial aac file.

rc
________________________________________
From: gstreamer-devel-bounces+romeo.chahine=arthrex.com at lists.freedesktop.org [gstreamer-devel-bounces+romeo.chahine=arthrex.com at lists.freedesktop.org] on behalf of Tim-Philipp Müller [t.i.m at zen.co.uk]
Sent: Wednesday, January 23, 2013 11:18 AM
To: gstreamer-devel at lists.freedesktop.org
Subject: Re: audio AAC to MP4 conversion fails

On Wed, 2013-01-23 at 01:42 +0000, Romeo Chahine wrote:

Hi,

> As a first step I'm trying to get an aac audio file source to get muxed
> in to an mp4 container file (mp4mux).  At a later stage I will add
> video (h264) to it as well.  Here is the command line that I am using
> with gst-launch:
>
> gst-launch-0.10 -v -e filesrc location=test.aac !
> aacparse mux.audio_00 mp4mux name=mux ! filesink location=test.mp4
>
> and here is the error response that I get:
>
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> /GstPipeline:pipeline0/GstAacParse:aacparse0.GstPad:src: caps = audio/mpeg, framed=(boolean)true, mpegversion=(int)4, rate=(int)44100, channels=(int)2, stream-format=(string)adts
> ERROR: from element /GstPipeline:pipeline0/GstAacParse:aacparse0: GStreamer encountered a general stream error.
> Additional debug info:
> gstbaseparse.c(2890): gst_base_parse_loop (): /GstPipeline:pipeline0/GstAacParse:aacparse0:
> streaming stopped, reason not-linked

I think aacparse might not support converting ADTS-framed AAC into "raw"
AAC yet, which is what mp4mux needs:
https://bugzilla.gnome.org/show_bug.cgi?id=615740

Cheers
 -Tim

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