[mythtv-users] Problem with 1080i h264 video - video appears to be twice as long as it should.

Manuel McLure manuel at mclure.org
Tue Jun 2 16:02:02 UTC 2009

On Tue, Jun 2, 2009 at 12:06 AM, belcampo <belcampo at zonnet.nl> wrote:
> Manuel McLure wrote:
>> My TV provider (which uses IPTV) recently switched from MPEG2 to h264
>> streams, and since then I'm seeing a problem with new recordings. When
>> they're playing, Mythtv shows the length as being twice what it really
>> is - i.e. a recording from 5:00 to 6:00 shows as 1:59 in length. Also,
>> fast forwarding and rewinding as well as commercial skip don't work
>> correctly - sometimes a "skip forward" command will actually skip back
>> in the show.
> That's because it's interlaced material and ffmpeg libs until recently
> wasn't able to distinguish between field and frames. So that's why it
> doubles and seeking is a problem.

I'm building against ffmpeg 0.5 - what version do I need for this to
work correctly? Also, interlaced 1080i MPEG2 streams work fine - is
the ffmpeg limitation only applicable to h264 streams?

Manuel A. McLure WW1FA <manuel at mclure.org> <http://www.mclure.org>
...for in Ulthar, according to an ancient and significant law,
no man may kill a cat.                       -- H.P. Lovecraft

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