[vlc-devel] Problem playing h264 + AAC (VBR) in AVI container.
Kaarlo Räihä
agent_007 at luukku.com
Fri Jul 31 10:36:18 CEST 2009
Thanks. I forgot to test --codec=faad in 0.8.6i, it works there. So I am calling this one regression bug. Trac ticket is
https://trac.videolan.org/vlc/ticket/3015
jboileau kirjoitti 30.07.2009 kello 22:41:
> Hi Kaarlo,
>
> Thanks for doing these tests. I appreciate your help.
>
> You are right that this file is flagged as problematic by VLC. This
> file has no index. This does not make it damaged or illegal though. In
> AVI the index, although recommended, is not obligatory. VLC, being
> friendly, offers to create it for us so that seeking will be possible.
> This should not be seen as the cause of the audio failling and I don't
> think that is what you implied, just making sure we understand.
>
> Thanks for your investigation. I don't know if there is anything we
> can do. Is it possible, through options, to force the audio decoder to
> FAAD?
>
> Jacques Boileau
>
>
>
>
> ---------- Forwarded message ----------
> From: Kaarlo Räihä <agent_007 at luukku.com>
> Date: Thu, Jul 30, 2009 at 3:20 PM
> Subject: Re: [vlc-devel] Problem playing h264 + AAC (VBR) in AVI
> container.
> To: Mailing list for VLC media player developers
> <vlc-devel at videolan.org>
>
>
> I can confirm that the audio doesn't work in VLC. But for me it didn't
> work 0.8.6x series either. It does play correctly in MPC.
>
> I assume issue in VLC is that audio track is identified incorrectly
> (or the info is wrong). Because it feeds the audio to QuickTime
> decoder in Win32, when normally FAAD is used with AAC.
>
> Other notes, AVI files is either damaged or wrongly created one (VLC
> complains about this on opening of the file). Tool like Divfix++ can
> make it better in AVI spec wise, but audio is still MIA in VLC. Even
> fixed AVI won't work in MP4box or in AVIdemux (cannot remux to MP4 nor
> demux audio AAC out from the AVI).
>
> jboileau kirjoitti 30.07.2009 kello 17:05:
> > Thanks Kaarlo. I just uploaded the file, the link is below. Let me
> > know if you find anything.
> >
> > http://rapidshare.com/files/261777375/test1-0.avi.html
> >
> > This is the first time I used Rapidshare, seems to be a great way to
> > transfer files. Thanks for introducing me to it. :-)
> >
> > Jacques Boileau
> >
> >
> >
> >
> > On Thu, Jul 30, 2009 at 3:00 AM, Kaarlo Räihä<agent_007 at luukku.com>
> > wrote:
> > > Rapidshare, Megaupload or any similar service will work.
> > >
> > > jboileau kirjoitti 29.07.2009 kello 21:46:
> > >> Hi Kaarlo,
> > >>
> > >> Thanks very much! for the qwick reply! Where can I upload the file?
> > >> Pastebin is for text only, is there the equivalent for binary files? I
> > >> doubt attaching à 4.44mb file to this email is a good idea. Let me
> > >> know...
> > >>
> > >> Jacques Boileau
> > >>
> > >>
> > >>
> > >>
> > >> On Wed, Jul 29, 2009 at 1:49 PM, Kaarlo Räihä<agent_007 at luukku.com>
> > >> wrote:
> > >> > You can put AAC inside AVI, but it isn't recommended because there
> can
> > be
> > >> some complications on playback side. If you can upload short sample
> file
> > >> showing the issue, I can open trac ticket for this.
> > >> >
> > >> > jboileau kirjoitti 29.07.2009 kello 19:00:
> > >> >> Hi,
> > >> >>
> > >> >> I have a problem reading h264 + AAC AVI files with VLC. The AAC is
> > >> >> VBR. They play very well with VLC 0.8.6i and play perfectly with
> > >> >> MPlayer. But with VLC 1.0.1 it fails to play the audio portion. I
> have
> > >> >> included VLC messages below that I believe to be pertinent.
> > >> >>
> > >> >> These files are created by a surveillance camera and I have some
> > >> >> control over the code or at least some parameters of the encoding
> and
> > >> >> maybe something might be configured to help compatibility with VLC.
> I
> > >> >> can't do CBR presently though. Maybe there are VLC options I can try
> > >> >> and play with to see if I can get it to work.
> > >> >>
> > >> >> I have read contradicting information on the web about AAC (VBR) in
> an
> > >> >> AVI. Some say its possible some say not. I hope some of you experts
> > >> >> can shed some light on the subject. If more details is needed,
> please
> > >> >> let me know. I can also upload an example file to Pasteboard and/or
> > >> >> discuss this on IRC, whichever is easier for you guys.
> > >> >>
> > >> >> If you have ideas of things to try to make this work I would
> > appreciate.
> > >> >> Thanks!
> > >> >>
> > >> >> Jacques Boileau
> > >> >>
> > >> >>
> > >> >> main debug: using decoder module "avcodec"
> > >> >> main debug: TIMER module_need() : 5.000 ms - Total 5.000 ms / 1
> intvls
> > >> >> (Avg 5.000 ms)
> > >> >> main debug: thread (decoder) created at priority 0
> > >> >> (../.././src/input/decoder.c:315)
> > >> >> main debug: thread started
> > >> >> main debug: looking for decoder module: 36 candidates
> > >> >> main debug: using decoder module "faad"
> > >> >> main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1
> intvls
> > >> >> (Avg 1.000 ms)
> > >> >> main debug: looking for packetizer module: 21 candidates
> > >> >> packetizer_mpeg4audio debug: running MPEG4 audio packetizer
> > >> >> packetizer_mpeg4audio debug: no decoder specific info, must be an
> ADTS
> > >> >> or LOAS stream
> > >> >> main debug: using packetizer module "packetizer_mpeg4audio"
> > >> >> _______________________________________________
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> > >> >
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