[FFmpeg-devel] [PATCH] DVB LATM parser

David DeHaven dave
Fri Feb 13 17:56:01 CET 2009


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

-DrD-





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