*.mts file playback startup issue

Hi,

My video camera produces *.mts files. After analysing these files using MediaInfo I noted that they are BDAV (Blu-ray Video) files. With regards to playing back these files I observed a problem with the WD TV Live Hub during the first 5-10 seconds of the video. Here is approximate description of the playback experience when playing these video files:

  • After pressing OK

  • for the first 5 seconds one sees the video playing with muted audio.

  • after 5 seconds the video playback freezes and one hears the audio playback missed during 1st 5 seconds.

  • after 10 seconds finally the audio and video start playing together.

If one was watching a 2 hour movie I could understand how one would could view this as a minor issue but if one had a collection smaller files (i.e. on the order 1-4 minutes each, e.g. as shot from a video camera for home movies) than the experience of this start up issue becomes a big annoyance, especially if one decides to have the player play thru a directory full of these files.

I believe it would be far better (i.e. for the sake of a more graceful startup) to have an initial delay (e.g. of 5 to 10 seconds, e.g. to allow the player’s buffers to be set up etc…whatever) and have the content stream cleanly in sync from the beginning of the data. This would make for much better viewing experience.

I would be happy to provide a file which displays the above symptoms when played thru the WD TV Live Hub media player. Essential any of my *.mts files from my JVC video camera.

Here is a print from MediaInfo for one of these *.mts files:

General
ID                               : 0
Complete name                    : D:\My Video\Everio\HDDCAM\20100508\9657687925919318016\00009.mts
Format                           : BDAV
Format/Info                      : Blu-ray Video
File size                        : 164 MiB
Duration                         : 1mn 19s
Overall bit rate                 : 17.2 Mbps
Maximum Overall bit rate         : 18.0 Mbps

Video
ID                               : 4113 (0x1011)
Menu ID                          : 1 (0x1)
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : High@L4.0
Format settings, CABAC           : No
Format settings, ReFrames        : 2 frames
Format settings, GOP             : M=1, N=30
Codec ID                         : 27
Duration                         : 1mn 19s
Bit rate mode                    : Variable
Bit rate                         : 16.3 Mbps
Maximum bit rate                 : 17.0 Mbps
Width                            : 1 920 pixels
Height                           : 1 080 pixels
Display aspect ratio             : 16:9
Frame rate                       : 29.970 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Interlaced
Scan order                       : Top Field First
Bits/(Pixel*Frame)               : 0.262
Stream size                      : 155 MiB (95%)

Audio
ID                               : 4352 (0x1100)
Menu ID                          : 1 (0x1)
Format                           : AC-3
Format/Info                      : Audio Coding 3
Mode extension                   : CM (complete main)
Codec ID                         : 129
Duration                         : 1mn 20s
Bit rate mode                    : Constant
Bit rate                         : 256 Kbps
Channel(s)                       : 2 channels
Channel positions                : Front: L R
Sampling rate                    : 48.0 KHz
Bit depth                        : 16 bits
Video delay                      : -67ms
Stream size                      : 2.44 MiB (1%)

Text
ID                               : 4608 (0x1200)
Menu ID                          : 1 (0x1)
Format                           : PGS
Codec ID                         : 144
Duration                         : 1mn 19s
Video delay                      : -67ms

Thank-you,

Charles

Having retype this all in for the 2nd time…i.e. my session crashed. Decided to type into Word pad and copy and paste so I don’t lose all this a 2nd time.

I think I have some new information/observations to add to this problem.

I finally got around to loading MeGui on my computer today. I used MeGUI to demux the video and audio from a blu-ray *.mts file that has an out of sync start of issue with the WD TV Live Hub player (i.e. see previous post). In fact all the files from my JVC camera do not work correctly in the player (i.e. first 10 seconds of every video file).

After demuxing the video and audio I muxed them back together into a Blu-ray *.m2ts file. I tried playing the file on the WD TV Live Hub and to my delight there was no 10s start up skew i.e. the file play correctly from the start. So then I was curious to determine what was different between the two files. I compared the MediaInfo data of the two files i.e. the original *.mts file from my JVC camera and the new ('remux’ed) *.m2ts file I’d created using MeGUI.

They are both Blu-ray files and show no significant difference other than the fact that the original *.mts file includes a -67ms video delay.   mmmm…could this be the thing that is contributing to the problem. Note that the re-muxed *.m2ts file created using MeGUI does not have this delay. Other than this there is no significant difference between the files. The only other difference that may or may not be significant is that the original *.mts file includes a text component that I didn’t include in the re-muxed file. I’ve include the MediaInfo data for both files below:

-------> Original file ------>

General

ID : 0

Complete name : D:\My Video\Everio\HDDCAM\20100614\9657687925919318016\0​0084.mts

Format : BDAV

Format/Info : Blu-ray Video

File size : 94.9 MiB

Duration : 2mn 37s

Overall bit rate : 5 062 Kbps

Maximum Overall bit rate : 18.0 Mbps

Video

ID : 4113 (0x1011)

Menu ID : 1 (0x1)

Format : AVC

Format/Info : Advanced Video Codec

Format profile : High@L4.0

Format settings, CABAC : No

Format settings, ReFrames : 2 frames

Format settings, GOP : M=1, N=30

Codec ID : 27

Duration : 2mn 37s

Bit rate mode : Variable

Bit rate : 4 595 Kbps

Maximum bit rate : 17.0 Mbps

Width : 1 920 pixels

Height : 1 080 pixels

Display aspect ratio : 16:9

Frame rate : 29.970 fps

Color space : YUV

Chroma subsampling : 4:2:0

Bit depth : 8 bits

Scan type : Interlaced

Scan order : Top Field First

Bits/(Pixel*Frame) : 0.074

Stream size : 86.0 MiB (91%)

Audio

ID : 4352 (0x1100)

Menu ID : 1 (0x1)

Format : AC-3

Format/Info : Audio Coding 3

Mode extension : CM (complete main)

Codec ID : 129

Duration : 2mn 37s

Bit rate mode : Constant

Bit rate : 256 Kbps

Channel(s) : 2 channels

Channel positions : Front: L R

Sampling rate : 48.0 KHz

Bit depth : 16 bits

Video delay : -67ms

Stream size : 4.80 MiB (5%)

Text

ID : 4608 (0x1200)

Menu ID : 1 (0x1)

Format : PGS

Codec ID : 144

Duration : 2mn 36s

Video delay : -67ms

----------> MeGui file ------>

General

ID : 1

Complete name : D:\My Video\temporary\Megui test\0084_megui.m2ts

Format : BDAV

Format/Info : Blu-ray Video

File size : 92.0 MiB

Duration : 2mn 37s

Overall bit rate : 4 909 Kbps

Maximum Overall bit rate : 35.5 Mbps

Video

ID : 4113 (0x1011)

Menu ID : 1 (0x1)

Format : AVC

Format/Info : Advanced Video Codec

Format profile : High@L4.0

Format settings, CABAC : No

Format settings, ReFrames : 2 frames

Format settings, GOP : M=1, N=30

Codec ID : 27

Duration : 2mn 36s

Bit rate mode : Variable

Bit rate : 4 450 Kbps

Maximum bit rate : 17.0 Mbps

Width : 1 920 pixels

Height : 1 080 pixels

Display aspect ratio : 16:9

Frame rate : 29.970 fps

Color space : YUV

Chroma subsampling : 4:2:0

Bit depth : 8 bits

Scan type : Interlaced

Scan order : Top Field First

Bits/(Pixel*Frame) : 0.072

Stream size : 83.3 MiB (91%)

Audio

ID : 4352 (0x1100)

Menu ID : 1 (0x1)

Format : AC-3

Format/Info : Audio Coding 3

Mode extension : CM (complete main)

Codec ID : 129

Duration : 2mn 37s

Bit rate mode : Constant

Bit rate : 256 Kbps

Channel(s) : 2 channels

Channel positions : Front: L R

Sampling rate : 48.0 KHz

Bit depth : 16 bits

Stream size : 4.80 MiB (5%)

I believe MeGUI may allow one to stipulate a video delay when muxing audio and video…if I can make that work…I will try an create the same file with the delay to confirm if the problem comes back.

Charles

Hi charles9 , i have the same issue ,also i’ve downloaded all the videos saved in the camera (3700 files)

and when i try to reproduce the files, the whole folder is being reproduced as a single movie of 5 hours (whichs actually are 9 hours)

the weird thing is, when that happens, i dont see the delay of 5 seconds , all the videos run smoothly, but the bad part is

suppose if i want to go the video 2500 , i have to fast forward from the first video to the hour 3:00:00

i thikn this is a mayor bug , but im still trying to see if i can do something to avoid that behaviour.

I just copied all the files to a external hd, and the used the sync option from the hub

my camera is a sony  HDR-XR150

http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10151&catalogId=10551&langId=-1&productId=8198552921666073287

i used a program called tsmuxer and used m2ts muxing and worked, the file loosed the time delay, now im trying to find the way to do that using the command line tool in batch to do it to all the videos.

another thing i did was updating the firmware to the new vresion, and now my mts files doesnt run smooth, i notice some frame lost  , i want to downgrade the version but there is no link to download the previous one, neither a document to tells u how to do it,

Hi Matongax,

I hadn’t check this thread for a little while now…I’ll click on the “Email me when someone replies” this time. i.e. so I’m aware of replies etc. woops, forgot to do it again…ie. choice not offered when editing a post.

I haven’t done much as of late to find a solution to playing the *.mts files with BDAV. What I’ve been doing is using a video editor to add titles to the front of my *.mts clips. The editor produces *.m2ts output files which do not experience the start up issue I described in the first email. So for now at least…I have been able to gather a folder of these *.m2ts clips to be able to play what I want without the annoying start up issue…i.e. So I haven’t been trying to look for, or test other alternatives. It would be nice if eventually a solution to this problem were provided i.e. so that the files from the camera could be played directly.

That’s it for now.  I will eventually get around to looking into the tsmuxer tool you mention as well. 

Thanks,

Charles

Well, this is bad news to me. I tried to buy one of these Live Hubs tonight from Best Buy, but they didn’t have any in stock. The reason is that I’m trying to find a product like this that will play my .MTS files. Earlier this week, I purchased the Live Plus, went through all the firmware updates, and ooh’d and aah’d about how nice and lovely the interface and functionality was. What a wonderful product—I want it to work! It didn’t. So, I have to take it back, and figured I’d spring for the new product confident the problem would go away. Then i saw this thread. You guys are describing the exact same problem I found on the Live Plus. While it played other lower-res videos I had just fine, each of the ones from my new Canon HD camcorder played as described in this thread. My friend has a Panasonic HD camcorder, so we tried his–same problem. So, this isn’t camcorder specific (I think we now have at least four identified). Unfortunately, it’s WD specific. WDC, we love and want this product, please fix it! People will be buying HD camcorders like hotcakes this month, you have the dream product, and it won’t play the videos. You really should have people working around the clock on this, or return season is going to be painful in January. Meanwhile, it looks like I’m going to be trying out the competing products, sorry, I need to find a solution.

scott , i got two live hubs and one wd  live tv plus  , the startup problem happen on both , after doing what charled did , i was able to play the files without the startup ,  but, after that . i did something that i shouldnt done.

i upgraded the firmware to the latest version. DONT DO THAT, now my mts videos doesnt play smooth, seems like they are loosing frames, the same thing is happening on the wd tv live plus  ,  so if u guys know something about it and how to fix it , i opened a ticket with wd help desk  , asking for a way to downgrade the firmware, and they replied to me that there is no way to do it .

so now  my videos doesnt run smoothly as they did before!!

Wow, that’s annoying.  Well, I am not interested in hacking all my video clips to get them to play as a solution, so that’s a non-starter for me.  Part of the appeal of this product is it’s supposed to be a turnkey solution!  I want my wife, kids, and parents to be able to use it.   Also, as soon as I plugged the unit in, it wanted to upgrade itself (twice), and I let it, so it now has the latest firmware.  Oh well.

I have the same problem decscribed above and for me it’s incredible that to play any m2ts file got from my Panasonic SD60 camera, I have to debug previosly all the files: they are about 2000… 

Now, I am a skilled user and I use to read this type of forum and therefore in some ways I’ll solve the problema, but I’m sure that for a normal user this problem should be very heavy. 

Fortunately I’m able to read correctly these file from my TV connected in the net together with the hub…