[FFmpeg-devel] HLS problem

aviad rozenhek aviadr1
Thu Dec 9 17:49:44 CET 2010


On Wed, Dec 8, 2010 at 20:10, Reimar D?ffinger <Reimar.Doeffinger at gmx.de>wrote:

> On Wed, Dec 08, 2010 at 12:18:14PM +0200, Martin Storsj? wrote:
> > On Wed, 8 Dec 2010, aviad rozenhek wrote:
> >
> > > you are probably correct that the playback problems i'm seeing are due
> to
> > > buffering issues, but still the slew of aac decoding error logs is
> > > worrisome. do you think its a bug in the aac encoder, missing data, or
> > > what?!?
> > > my tests show that the aac error logs still happen when I let ffplay
> buffer
> > > for a long time before playing.
> >
> > Not sure what these come from. You could download all the mpegts segment
> > files from a playlist, concatenate them to a long .ts file, and play back
> > that, and you probably get the same errors. If you hand that file to
> > someone more knowledgeable on AAC and mpegts, they may be able to give a
> > better verdict on the issue.
>
> There is a roundup bug with patch for that.
> The issue is that some code uses url_read instead of url_read_complete,
> at least in some cases with http that means the code ends up using
> unintialized data and worse that uninitialized data will even appear
> in addition to valid data so not even the file offsets make any sense
> anymore (at least it looked like that to me, though the first part
> alone is bad enough).
>
>
Thanks for this valuable input, I didn't know what to make of these
errors...
is there something blocking the approval of said patch? can I help?



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