HDTV or .ts variants into QT7 on XP [Archive]

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dk303808909

12th September 2005, 22:01

hey guys,

i know we have lots of toys and opensource options to mess with when playing with a .ts file. i have the ati hdtv card and now have qt7 installed thanks to my love for iTunes. itunes 5, btw, kicks ass.

anyways, i want to get from a mpeg2/hdtv/ts variant [obviously one from the ati] to the qt7 standard export screen. or to open in quicktime would be even better.

aside from trying an interim recode to a more qt7 friendly format [and suggestions/link for a simple method would be nice] - is there an easy way to do this?

i am not aware of any method to get a .ts to open from within quicktime in XP, and am also curious if there is a codec/dvhs extension that will work with on the XP platform like mpegstreamclip does for OSX.

i want to mess with the apple h.264 codec... so any tips would great.

SeeMoreDigital

12th September 2005, 23:54

dk303808909

17th September 2005, 08:40

thanks for the tip, somehow i was not aware that h.264 was mp4. as for the ac3 point, the audio in most streams is mpeg2 when captured to the drive or exported from the proprietary capture format. you know, just to cheat dolby labs from royalties... ;).

but those tools in that link may help me get to an interim format anyways or satisfy my curiosity anyways. so thanks.

the thing is, while quicktime may be slow and less customizable and all that - it is rather bullet proof as it handles vfr better then anything i know. i just am surprised there is no dvhs compnent for quicktime on the xp platform.

plus, i like apple stuff. oh well.

SeeMoreDigital

17th September 2005, 12:08

thanks for the tip, somehow i was not aware that h.264 was mp4.It's not.... H.264 (aka: MPEG-4/AVC) is the video stream..... MP4 is the approved container designated for use with all MPEG-4 ISO/IEE video streams!

Cheers

Czarek Kwasny

17th September 2005, 15:01

Hi and welcome to the forum!

In all honesty I would not try using QT7 Pro to encode HD MPEG-2 to HD MPEG-4/AVC.... It's far too slow at encoding and QuickTime does not handle/recognise AC3 audio.

If you look around in the MPEG-4 AVC (http://forum.doom9.org/forumdisplay.php?f=77) section of the forum you should find plenty of tools and information about this subject....

Cheers

If we are talking about HDTV and AVC one thing bothers me:

I tried to use MeGUI and VFW for x264 to encode some HD material. One problem arises... The standard HDTV resolutions are: 1280x720 and 1920x1080. x264 supports resolutions dividable by "16". This would mean that the first resolution is fine but the second is not... 1080/16=67.5. The only possibility would be to add some letterboxing (1088) or crop the source (1072). Both are not really acceptable for me... And QT supports 1920x1080 resolution as far as I remember. Is there any way to use h.264 compression with native 1920x1080 resolution in mp4 container?

It would be very helpful for me, as it would finally let me put my animations in unified format (container, compression etc.) for playback.

SeeMoreDigital

17th September 2005, 15:28

I tried to use MeGUI and VFW for x264 to encode some HD material. One problem arises... The standard HDTV resolutions are: 1280x720 and 1920x1080. x264 supports resolutions dividable by "16". This would mean that the first resolution is fine but the second is not... 1080/16=67.5. The only possibility would be to add some letterboxing (1088) or crop the source (1072). Both are not really acceptable for me... And QT supports 1920x1080 resolution as far as I remember. Is there any way to use h.264 compression with native 1920x1080 resolution in mp4 container?In actual fact high-def 1920x1080 MPEG-2 content does not contain 1080 pixels, it contains 1088 pixels!

Often you can confirm this yourself by de-muxing the MPEG-2 video stream out of which ever container it's in, and running the RAW MPEG-2 .M2V stream thru' a file checking tool to investigate its properties. Or playing the file in a media player or de-muxing application that does not read the fake "1080" stream header information!

Cheers

Czarek Kwasny

17th September 2005, 17:02

This seems to be very resonable. I don't have any hd mpeg2 streams on my hdd at the moment, but will check it for sure. Thank you very much.

On the other hand most of the predefinied compositions in After Effects or Photoshop have 1920x1080 dimensions, so it's a little confusing for me that still 1088 height is necessary instead of 1080. Reminds me a little the situation with PAL resolution. When outputting to AVI (DV codec doesn't really meets requirements of animation) you could either watch it squeezed (720x576) or prepare it for PC audience in 768x576 resolution, because most of the players don't consider PAR...

I hope it will be possible to process streams of dimensions dividable by 8 via x264 codec soon...

calinb

22nd January 2006, 20:17

anyways, i want to get from a mpeg2/hdtv/ts variant [obviously one from the ati] to the qt7 standard export screen. or to open in quicktime would be even better.MPEG Streamclip for WinXP is out:
http://www.alfanet.it/squared5/

Also, Nextcomm wireless was kind enough to build replex on Windows. Replex(32) can remux many .ts files to MPEG or VOB:
http://www.nextcomwireless.com/r5000/support.htm

Here's a build I did for Intel Macs too:
http://rapidshare.de/files/11407045/replex.gz.html

Replex site and source:
http://freshmeat.net/projects/dvb-replex/