MPEG2 to H264/MP4 conversion

Tudor

New member
I have lots of files with a similar format to below:

File: Name : K:\Videos\Bones\23 - The Change in the Game.mpg
Size : 1.380 GB
Duration : 00:40:43.13
Mux type : PS - MPEG2
Video: Encoding : MPEG2
VideoStreamID : xE0
Frame rate : 25.00 fps
Encoding size : 720 x 576
Display dimensions : 720 x 576
Aspect ratio : 16:9
Header bit rate : 9.282 Mbps
VBV buffer : 224 KBytes
Profile : Main@Main
Progressive : Prog or Int
Chroma : 4:2:0
Bit rate : 3.971 Mbps
Audio Stream: 1 (Primary) Codec : AC3
Format : DVD VOB
Channels : 2.0
Sub stream id : x80
Bit rate : 384 Kbps
Sampling rate : 48000
Sample size : 16 bits

When I reprocess them thorough VRD, using various different options, I always end up with a file that is jerky when played back on my Seagate GoGlex TV media player. As yet, I have not be able to try then on any other players. Anybody have any ideas? I'm using latest beta 637g.
 

Dan203

Senior Developer
Staff member
Does the "Seagate GoGlex TV media player" support PAL? If not then it's probably the 25fps frame rate causing the issue. Unfortunately VideoReDo does not have a frame rate converter, so there is nothing you can do in VRD to fix that.

Dan
 

Tudor

New member
Yep, the GoFlex Media Player supports Pal. The MPEG2 version of the file plays perfectly! I'm not saying VRD is at fault, it may be the GoFlex.
 

Dan203

Senior Developer
Staff member
Could be an interlaced problem. Not all devices support interlaced H.264. Try clicking the Options button in the Save dialog and setting the deinterlace setting to Smart.

Dan
 

Tudor

New member
Thanks Dan, it's not an interlace problem, but I have isolated it to the Seagate GoFlex media player.
I got an HDMI adapter for my IPAD 3 and all the files that showed judder on the GoFlex media player were perfectly ok on the same TV.

Anybody else using a Seagte GoFlex Media Player?
 

Dan203

Senior Developer
Staff member
OK one last possibility is bitrate. Some devices have a maximum bitrate allowed for a given resolution. It's possible the bitrate VRD selects automatically could cause a problem. Try setting the Max Bitrate to something low like 1000 and see if that makes any difference.

Edit: Actually just to rule everything else out try using the iPhone profile but set the resolution to 640x480 and see if that plays. The iPhone profile not only limits bitrate and resolution, but also profile and level so if it works OK then it might give us some insight into the limitations of the GoFlex.

Dan
 
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