Discussion:
HDTV with CinemaSix 1.2
Ron
2004-07-08 18:15:36 UTC
Permalink
Has anyone tried HDTV video with the latest CinemaSix release (file mode)?
I just ran some tests with 1920 x 1080 (17.5 Mb/s) video and AC-3 and it
appeared CinemaSix was just too slow. The picture and sound were very
choppy and locked up occasionally. I tried both PS and TS versions of the
same source material and the results were the same. Just to make sure it
wasn't my network, I tried the same TS file with StreamPlayer and it was
perfect, even the lip sync and even after putting it in "pause" for several
minutes.
Sujal Patel
2004-07-08 18:32:32 UTC
Permalink
I know there is a pause issue with the current release, but none of the TS
code changed between 1.1 and 1.2, I'll check it out tonight.

Sujal
Post by Ron
Has anyone tried HDTV video with the latest CinemaSix release (file mode)?
I just ran some tests with 1920 x 1080 (17.5 Mb/s) video and AC-3 and it
appeared CinemaSix was just too slow. The picture and sound were very
choppy and locked up occasionally. I tried both PS and TS versions of the
same source material and the results were the same. Just to make sure it
wasn't my network, I tried the same TS file with StreamPlayer and it was
perfect, even the lip sync and even after putting it in "pause" for several
minutes.
Taylor
2004-07-08 18:52:28 UTC
Permalink
FWIW, I ran a 1080i TS stream just fine last night (from pcHDTV) via
"Direct Digital Output".

Taylor
Post by Sujal Patel
I know there is a pause issue with the current release, but none of the TS
code changed between 1.1 and 1.2, I'll check it out tonight.
Sujal
Post by Ron
Has anyone tried HDTV video with the latest CinemaSix release (file mode)?
I just ran some tests with 1920 x 1080 (17.5 Mb/s) video and AC-3 and it
appeared CinemaSix was just too slow. The picture and sound were very
choppy and locked up occasionally. I tried both PS and TS versions of the
same source material and the results were the same. Just to make sure it
wasn't my network, I tried the same TS file with StreamPlayer and it was
perfect, even the lip sync and even after putting it in "pause" for several
minutes.
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Sujal Patel
2004-07-09 10:13:42 UTC
Permalink
The problem with Pause and your problem are the same (Transport Streams
Only):

When the stream starts or you pause, there is a chance (for me it's 1 in
10) that a race condition occurs that really starts a shit storm. Where
shit storm is defined as:
- Memory usage of CinemaSix drops sharply
- Memory usage of Cascade jumps abruptly
- kswapd starts churning like mad

I'm suspecting some sort of threading mishap, but I can't debug this
tonight. It'll have to wait until the end of the month (unless someone
else figures out my bug :-)


Sujal
Post by Ron
Has anyone tried HDTV video with the latest CinemaSix release (file mode)?
I just ran some tests with 1920 x 1080 (17.5 Mb/s) video and AC-3 and it
appeared CinemaSix was just too slow. The picture and sound were very
choppy and locked up occasionally. I tried both PS and TS versions of the
same source material and the results were the same. Just to make sure it
wasn't my network, I tried the same TS file with StreamPlayer and it was
perfect, even the lip sync and even after putting it in "pause" for several
minutes.
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