[x264-devel] HRD buffer overflow

[Steve Li]

Hi Kieran,

Thanks for your response. We re-do the test with the proper timescale of 1001, and we are still seeing the same problem. Here is the link to the new sample:
ftp://X264Dev:CompVid@drc-support.digital-rapids.com/timebase1001

Thanks
Steve

From: x264-devel-bounces at videolan.org [mailto:x264-devel-bounces at videolan.org] On Behalf Of Kieran Kunhya
Sent: Wednesday, May 30, 2012 7:04 AM
To: Mailing list for x264 developers
Cc: Jackie Chen
Subject: Re: [x264-devel] HRD buffer overflow

Well it is a bug I guess, but it results from your timescale of 417083/10000000 (~= 1/23.976). If you use 1001/24000 it should work.

It's quite strange that initial_cpb_removal_delay is written as 90001 whereas it should be =< 90000.

________________________________
From: Steve Li <steve.li at digitalrapids.com<mailto:steve.li at digitalrapids.com>>
To: Mailing list for x264 developers <x264-devel at videolan.org<mailto:x264-devel at videolan.org>>
Cc: Jackie Chen <Jackie.Chen at digitalrapids.com<mailto:Jackie.Chen at digitalrapids.com>>
Sent: Monday, 28 May 2012, 18:58
Subject: Re: [x264-devel] HRD buffer overflow

Hi Kieran,

Thanks for looking into it. Here is the link to the sample:
ftp://X264Dev:CompVid@drc-support.digital-rapids.com

Steve

From: x264-devel-bounces at videolan.org<mailto:x264-devel-bounces at videolan.org> [mailto:x264-devel-bounces at videolan.org] On Behalf Of Kieran Kunhya
Sent: Monday, May 28, 2012 3:58 AM
To: Mailing list for x264 developers
Cc: Jackie Chen
Subject: Re: [x264-devel] HRD buffer overflow

>Kieran might be able to shed some more light?

It does look like an analyser issue. If you post a sample I can have a look at it.
It could be the case that you are encoding the stream as vfr and vfr doesn't play well with HRD.


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