[Ffmpeg-devel] [PATCH] DVB AC-3 support in mpegts.c

Andy Brown abrown
Wed Mar 15 15:25:20 CET 2006

Quoting M?ns Rullg?rd <mru at inprovide.com>:

> Andy Brown said:
>>>> This patch simply adds demuxing support for AC-3 streams in DVB TS
>>>> files.  In these streams AC-3 is given type 0x06 (private stream)
>>>> and includes a descriptor with either tag 0x6A or 0x7A.  The code
>>>> already handles ATSC AC-3 which uses stream type 0x81.  All the new
>>>> patch does is look for any stream type 0x06 that has a descriptor
>>>> with the proper tag (i.e. 0x6A or 0x7A) and if found forces it to be
>>>> recognized as an AC-3 stream.
>>> Do you have some sample files?
>> I got the samples I have from someone in Australia who did a capture of
>> a DVB-T signal.  I'm not sure of the copyright status on that material so
>> I will have to check.
> Just a short clip should be allowed as fair use.  I'm not asking for complete
> programs.
>> AC-3 on DVB is used primarily in Australia.  Since I don't live
>> there I have to see what I can do in obtaining a sample that I can
>> redistribute.
> How about a commercial?  I've never heard of anyone being sued for pirating
> commercials.

I do have two short clips with mostly commericals.  They are MPTS, in 
with captures of the entire TS stream.  Therefore they are fairly 
large.  One is
96MB and the other is 70MB.  I can send you those, if you tell me where.  Or I
can try to filter it down to a single program which would make it 
smaller.  But
you'd still need to tell me where to send it.


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