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jacked
26th March 2008, 23:37
Hello All
On a h264 stream that shows as 1920 x 1088, eg Sky, is there any way to change the header to a proper 1920 x 1080and keep it as h264/avc without re-encoding to another format ?
I don`t know if h264info can do this but I couldn`t get it to work.
Thanks very much in advance.
:)

n0mag!c
27th March 2008, 12:08
Hello All
On a h264 stream that shows as 1920 x 1088, eg Sky, is there any way to change the header to a proper 1920 x 1080and keep it as h264/avc without re-encoding to another format ?
I don`t know if h264info can do this but I couldn`t get it to work.
Thanks very much in advance.
:)
Keep video without reencoding for what exactly? What is your resulting goal?

XolocoTuxmaster
27th March 2008, 12:54
Probably for Blu-ray, as DVB standard streams are (almost?) always compatible with it.

I think you could get last h264info an input the resolution (maybe you'll have to choose "write pps every picture" and "add picture structure" too)

About "recoding"...It's not just "not needed", it's stupid!!! All 1080 lines H264 videos are actually 1088, since it uses 16x16 macroblocks, so it's just a "header" problem.

I'm also interested on this so if you get it tell us how :D

jacked
27th March 2008, 18:58
Hello Guys,
You`re right, it is for Bluray. I want to import the files into Scenarist to author the disc.
I have used tsmuxer and that recognised the 1088 files and authored the disc but playback wasn`t 100% to my liking so I want to stick with Scenarist but that needs 1080 avc files.
I`m sure there must be a solution.
Dave.

Trahald
27th March 2008, 19:22
@jacked
is h264info failing just for that file or failing all together?

jacked
27th March 2008, 20:17
@jacked
is h264info failing just for that file or failing all together?

Hi,
I`ve used h264info on h264/avc 1080 files without problem.
It`s the 1088 flagged files that give me a Visual C + + Runtime Error message. I have tried different options although I will admit other than the settings mentioned in the HD-DVD to Bluray working guide I don`t know what I`m doing with this program.
Dave

Trahald
27th March 2008, 21:11
can you cut a piece of the file for me that still crashes and upload it somewhere i can get it?

jacked
27th March 2008, 22:20
can you cut a piece of the file for me that still crashes and upload it somewhere i can get it?

Hi,
I hope I`ve done this okay.
I got a 50mb sample ( is that too big ! ) using HJSplit and joined it again so it`s still a .264 file.
I`ve put it on Rapidshare with this download link :
http://rapidshare.com/files/102867239/h264_sample.264.html

Thanks very much for your help on this.
Dave.

Trahald
28th March 2008, 18:13
that stream is in pretty bad shape. specifically the sei nal's . alot are missing data which is causing the crashing. i am capturing that now so it shouldnt crash. but that means i get bad data. the slice (picture) data seems in decent shape. if the target is just an mkv or something then sei doesnt matter but if you are going for bluray it does. what did you use to demux from the .ts? errors in the stream are a part of dealing with .ts streams, but the better (less errors in) the elementary file the better apps can work with it.

jacked
28th March 2008, 18:51
that stream is in pretty bad shape. specifically the sei nal's . alot are missing data which is causing the crashing. i am capturing that now so it shouldnt crash. but that means i get bad data. the slice (picture) data seems in decent shape. if the target is just an mkv or something then sei doesnt matter but if you are going for bluray it does. what did you use to demux from the .ts? errors in the stream are a part of dealing with .ts streams, but the better (less errors in) the elementary file the better apps can work with it.

I think on this one I used TSMuxer to demux the file.
Dave

bond
29th March 2008, 12:05
Hello All
On a h264 stream that shows as 1920 x 1088, eg Sky, is there any way to change the header to a proper 1920 x 1080and keep it as h264/avc without re-encoding to another format ?
I don`t know if h264info can do this but I couldn`t get it to work.
Thanks very much in advance.
:)yes, you can crop the 8 away by setting the cropping flag in the stream's header. this is also dont that way on all 1920x1080 streams btw

thats the theory, as there is no tool available that can do that. unless trahald adds that option to h264info ;)

Trahald
29th March 2008, 18:33
already built in is cropping to support the frame size, so in this case using h264info and setting 1920x1080 as the resolution will cause h264info to set crop for 8 pixels.