MKV FILES

me_again wrote on 2/25/2022, 5:10 PM

I'll begin by assuming you are using MEP 2022 Pro.

MEP 2022 does edit MKVs. I use them often.

I'm a little stumped though with "if so how?". I use them in the same way as any other file. They do tend to load a little slower than, for example, an MP4 or an AVi on my system, which is not state of the art any more and the program occasionally seems to hang for several seconds almost like it's moving things around in the virtual memory for better access with lots of disk spinning and warming of the CPU. This happens also with certain JPGs and BMPs etc. when creating a slideshiw.

Obviously you have a problem with MKVs. Maybe if you enlighten us a little of the trouble you have we may be able to help more specifically.

Also a Mediainfo printout of the problem MKV would be a wonderful problem pointer.

AndyW

AAProds wrote on 2/25/2022, 7:44 PM

@Chris-Chambers @me_again

Chris, almost certainly it will be because MEP can't read the video codec in your MKV. The "MKV" part is just the container that the video and audio streams are in. Each could be any one of a number of codecs.

The readout from Mediainfo will tell us what codecs are being used in your MKV. On the View menu, choose "Text", then you can copy the report and paste it here.

If MEP can't open one of your MKVs, you'll have to convert it to a common video codec such as MPEG-4/AVC and, I suggest, AAC audio. You can use Handbrake to do so. My favourite at the moment is AVIDemux which has a nice simple interface but can only do one file at a time.

Edit: Spelling and grammar only

AAProds wrote on 2/25/2022, 9:04 PM

@Chris-Chambers @me_again

Good MKV (video codec AVC High L5.1):

https://drive.google.com/file/d/11OF_xM9QxAf9QKKqhK4n8gQQTkGPGx67/view?usp=sharing

Bad MKV (video codec V_MJPEG):

https://drive.google.com/file/d/1bHku_rGl2DCSG44i6OXY3GWkLEfJuOmE/view?usp=sharing

Chris-Chambers wrote on 2/26/2022, 1:20 AM

H guys as helpful as ever.Thank you i am using MEP 2021 as for the MKV file informatiuon it will be below. I am using a very old machine that works fine we MP4 files and WMV files.. 2013 i think i built it but it has currently been updated as best as i could do considering the age of the machine.Unfortunatly i no longer have MEP 2022. Due to me being a idiot . Thats another stoiry thanks for the help Guys /Gals

the problem ime having is it wont load on the tmeline i have the thumbnail ETC

Unique ID : 243285950187396235594046235490171330270 (0xB7072B6E4733CBD42B569A1AB6959EDE)
Complete name : D:\OBS MAYBE\2022-02-25 20-18-37.mkv
Format : Matroska
Format version : Version 4
File size : 158 MiB
Duration : 4 min 52 s
Overall bit rate : 4 520 kb/s
Writing application : Lavf58.76.100
Writing library : Lavf58.76.100
ErrorDetectionType : Per level 1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.2
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 4 min 52 s
Nominal bit rate : 4 350 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 60.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.079
Writing library : x264 core 163 r3060 5db6aa6
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=6 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=120 / keyint_min=12 / scenecut=0 / intra_refresh=0 / rc_lookahead=10 / rc=cbr / mbtree=1 / bitrate=4350 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=4350 / vbv_bufsize=4350 / nal_hrd=none / filler=1 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : A_AAC-2
Duration : 4 min 52 s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Title : simple_aac
Default : Yes
Forced : No

johnebaker wrote on 2/26/2022, 4:46 AM

@Chris-Chambers

Hi

From the encoder ID that would suggest the 'OBS MAYBE' is an OBS recording, the V-MPEG4 (AVI-MPEG4 ?) codec is not supported by Movie Edit Pro (MEP).

In the case of the existing recording, if it cannot be redone then I agree with @AAProds that conversion is necessary.

For future OBS captures change the video encoder to h.264 (x.264? - I do not use OBS for recording).

HTH

John EB

me_again wrote on 2/26/2022, 4:51 AM

@Chris-Chambers

Greetings Chris,

When I have an MKV that is being awkward with MEP I can usually "repair" it by remuxing to a different container without re-encoding.

For example in the demos that Al (@AAProds) provided the one labelled Bad MKV was made to load into MEP by doing a copy conversion of it to an AVI with Avidemux - i.e. set copy to both video and audio. I've used Avidemux for years and swear by it (and at it occasionally).

For your MKVs I would assume that MP4 would be the container to use.

AndyW

Al has a tutorial here: https://drive.google.com/file/d/1L14Ajp6TRq8qsPFTB7npFsDNyNwV6Uo3/view?usp=sharing

AAProds wrote on 2/26/2022, 5:05 AM

@me_again @Chris-Chambers

Andy, fantastic! Thanks for that.

CubeAce wrote on 2/26/2022, 6:28 AM

@AAProds @Chris-Chambers @johnebaker @me_again

Hi John.

I can edit MKV files from OBS Studio containing an MP-4 codec but I haven't used those settings for a quite a while now.

Again, I think it is down to the GOP structure but can't be sure.

Ray.

AAProds wrote on 2/26/2022, 8:32 AM

@Chris-Chambers

Any chance of you putting your recalcitrant file onto Google Drive or another file-sharing service so we can have a look at it?

Chris-Chambers wrote on 2/26/2022, 9:14 AM

its all sorted thankyou so much it works fine and turning it to a mp4 is no time thankyou again

johnebaker wrote on 2/26/2022, 2:16 PM

@CubeAce

Hi Ray

. . . . I think it is down to the GOP structure but can't be sure . . . .

The only GOP structure that not importable is All-Intra, which the source video may be as I do not see M= ? and N= ? values in the MediaInfo data as i do in your files data.

If the file is All-Intra then there I would expect a pop-up appearing re purchasing the appropriate codec as you have see with the Panasonic files in another topic.

John EB