Log in

View Full Version : [Solved] Juddery HD-DVD remux


smegolas
25th July 2012, 11:54
Hi,
I have a HD-DVD remux of "Band of Brothers" I made many years ago.

Unfortunately my HD-DVD player is now dead and as you know the format has since become obsolete so I have no way of playing or re-ripping my purchased discs any more.

The MKV remuxes I made all those years ago have some judder when played in MPC-HC and VLC. If I advance frame-by-frame in MPC-HC some frames get played 3 times and some only once..it doesnt really seem to be 3:2 pulldown but something similar.

However XBMC seems to play them okay without the judder.

Would I be correct in saying that HD-DVD had some issue with 23.976fps where it was encoded as 29.970 with pulldown flags?

Do you think there is some problem with the remuxes I made? And is it fixable with some kind of remux or header edit? I would prefer not to re-encode.

Or is it just a bug that both MPC-HC and VLC have?

here is the mediainfo
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 59mn 42s
Bit rate mode : Variable
Bit rate : 19.0 Mbps
Maximum bit rate : 21.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 fps
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.382
Stream size : 7.91 GiB (91%)
Default : Yes
Forced : No
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Thanks

hello_hello
26th July 2012, 11:37
I guess unless someone else has bumped into the same problem, you might have to split off a small sample and upload it somewhere for others to download and look at.

smegolas
26th July 2012, 18:25
I guess unless someone else has bumped into the same problem, you might have to split off a small sample and upload it somewhere for others to download and look at.

Hi, thanks for the reply.

I am closer to understanding it:
if I use ffdshow decoder with MPC-HC and turn on de-interlacing in the ffdshow tickbox, it becomes perfectly smooth and when you seek frame-by-frame the uneven cadence goes away.

Here is a sample, sorry it is so short but my u/l sucks:
http://www.filehost.ws/9bkarmg9t1du

sneaker_ger
27th July 2012, 05:10
Try demuxing with eac3to, then remuxing with mkvmerge. (Or even a direct remux with eac3to, needs installed Haali, though.)

smegolas
27th July 2012, 16:24
Try demuxing with eac3to, then remuxing with mkvmerge. (Or even a direct remux with eac3to, needs installed Haali, though.)

It doesnt seem to change anything.

I don't know what I did but I messed around with the settings and VLC is now playing them smoothly.

So it is just MPC-HC that is doing this strange 3:1 cadence.

I will put it down to a bug in MPC-HC or FFMPEG. Or maybe some quirk of how 23.976 was achieved on HD-DVD

Thanks

SassBot
27th July 2012, 16:29
If you really want to re-rip them, you can get used HD DVD combo computer drives for around 50 bucks.