[mythtv] Live transcode while recording

Rob Smith kormoc at gmail.com
Mon Dec 1 08:21:49 UTC 2008


On Sun, Nov 30, 2008 at 9:02 PM, Nigel Pearson <nigel at ind.tansu.com.au> wrote:
>> the moov atom contains absolute bit offsets for the stream.
>
> Do the offsets have to be accurate?
> If not, a dummy header could be generated
> with estimates based on recording length,
> bitrate, et c.

When I first got my ipod touch, I attempted to do just that and only
succeeded in crashing it hard. I took a 60 second pre-encoded video
and also screwed with it's header and it would crash with the header
offsets being off by one byte. It doesn't seem like the device can
handle anything but the perfect header.

It also attempts to do http partial content requests based on the info
in that header, so seeking would likely be broken if it was succeeded
in being faked.

Perhaps someone with more understanding of video can come up with a
solution, but I'm fairly sure it's not easy to say the least.


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