[FFmpeg-devel] [PATCH] DVB LATM parser

[David DeHaven]

On Feb 13, 2009, at 8:56 AM, David DeHaven wrote:
> On Feb 13, 2009, at 8:29 AM, David DeHaven wrote:
>> On Feb 13, 2009, at 8:12 AM, David DeHaven wrote:
>>> On Feb 13, 2009, at 12:32 AM, Jai Menon wrote:
>>>> On Fri, Feb 13, 2009 at 8:40 AM, David DeHaven <dave at sagetv.com>
>>>> wrote:
>>>>>
>>>>> On Feb 12, 2009, at 6:46 PM, Paul Kendall wrote:
>>>>>> On Friday 13 February 2009 06:11:58 David DeHaven wrote:
>>>>>>> Well, a slightly different (?) version works for streams from
>>>>>>> Norway
>>>>>>> too. I tried this one from the Handbrake project:
>>>>>>> http://trac.handbrake.fr/browser/tags/0.9.3/contrib/patch-ffmpeg-latm.patch
>>>>>>>
>>>>>> That's basically my first attempt at a patch to get it working
>>>>>> quick
>>>>>> & dirty in
>>>>>> MythTV
>>>>>>
>>>>>>> One issue I'm seeing is it's reporting a negative bitrate. I
>>>>>>> don't
>>>>>>> have much material to test with though.
>>>>>>>
>>>>>> I'll have to check that.
>>>>>
>>>>> I'll see if I can dig up a stream to test with.
>>>>
>>>> Could you also upload a sample? a bigger one (compared to what we
>>>> already
>>>> have) would be great. Thanks.
>>>
>>> Is there a folder for these already? Otherwise I'll just make a new
>>> one and post the path.
>>
>> Nevermind, can't write outside of incoming anyways :)
>>
>> It's going up to ftp://samples.mplayerhq.hu/MPlayer/incoming/dvb_norway_aac_latm/DVB-T_Norway_AAC_LATM_Sample.ts
>
> And a second sample going up named DVB-T_Norway_AAC_LATM_Sample2.mpg
> that had been remuxed into MPEG-2 PS. This one's 30 megs, ETA 5:20ish
> UTC.
>
> It shows the same negative bitrate, but it's from the same source.
>
>   Duration: 00:00:57.38, start: 0.644278, bitrate: 4238 kb/s
>     Stream #0.0[0x1e0]: Video: h264, yuv420p, 720x576, AR: 20:11,
> progressive, 25.00 fps(r)
>     Stream #0.1[0x1c1]: Audio: AAC_LATM, 48000 Hz, stereo, s16, -3192
> kb/s

Does a roundup issue exist for this? A search for "latm" returned  
issue 244 by Aurel. It seems related but I also have an MPEG-PS  
sample, and it doesn't address the second issue of the negative  
bitrate being reported.

And were the samples moved or removed? I logged in to upload text  
files to describe the issue and couldn't change to the directory...  
(my fault, I should have done that last week)

-DrD-