Jump to content

.m2ts


fredgolightly

Recommended Posts

Hi,

I'm trying to join and edit some .m2ts videos from a Panasonic video camera. It outputs .m2ts files which have video avc codec, as per:

General
ID                             : 1 (0x1)
Complete name                  : E:\David\Desktop\New folder\1080p 25fps m2ts.m2ts
Format                         : BDAV
Format/Info                    : Blu-ray Video
File size                      : 33.1 MiB
Duration                       : 22 s 63 ms
Overall bit rate mode          : Variable
Overall bit rate               : 12.6 Mb/s
Maximum Overall bit rate       : 18.0 Mb/s

Video
ID                             : 4113 (0x1011)
Menu ID                        : 1 (0x1)
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High@L4
Format settings, CABAC         : Yes
Format settings, ReFrames      : 4 frames
Codec ID                       : 27
Duration                       : 22 s 0 ms
Bit rate mode                  : Variable
Bit rate                       : 11.7 Mb/s
Maximum bit rate               : 16.8 Mb/s
Width                          : 1 920 pixels
Height                         : 1 080 pixels
Display aspect ratio           : 16:9
Frame rate                     : 25.000 FPS
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Interlaced
Scan type, store method        : Separated fields
Scan order                     : Top Field First
Bits/(Pixel*Frame)             : 0.225
Stream size                    : 30.6 MiB (93%)

Audio
ID                             : 4352 (0x1100)
Menu ID                        : 1 (0x1)
Format                         : AC-3
Format/Info                    : Audio Coding 3
Mode extension                 : CM (complete main)
Format settings, Endianness    : Big
Codec ID                       : 129
Duration                       : 22 s 112 ms
Bit rate mode                  : Constant
Bit rate                       : 384 kb/s
Channel(s)                     : 6 channels
Channel positions              : Front: L C R, Side: L R, LFE
Sampling rate                  : 48.0 kHz
Frame rate                     : 31.250 FPS (1536 spf)
Bit depth                      : 16 bits
Compression mode               : Lossy
Delay relative to video        : -80 ms
Stream size                    : 1.01 MiB (3%)

However, when I come to export, despite no transcode-needing edits done (ie just plonking one file into the timeline and exporting) and the lossless export enabled, the file is re-encoded. Are .m2ts files not supported for lossless cutting/joining in Videopad? I'm using 5.01, and have uploaded a few sample files plus my log to: https://www.dropbox.com/sh/7wr9b4lyjvuuhcm/AAChEccuKCutX_iyAZh60O4Ua?dl=0 if anyone can help me out with what's stopping the export be lossless.

 

Any info would be so gratefully received :)

Link to comment
Share on other sites

7 hours ago, c_major said:

At the moment VideoPad only supports non-destructive editing for H.264 codec with Enable lossless video exporting option turned on.

We are continuously working on it to improve it and adding support to more codecs.

Great! Well I tried editing/exporting losslesspy with it enabled and on these files, which are h264 (avc is h264) but no luck. Am I doing it wrong or is this h264 file not supported?

Link to comment
Share on other sites

In order to export lossless, following conditions must applied:

  • Input and output codec must be H.264 and with same codec settings.
  • Output frame rate and resolution must be the same as input.
  • Timeline section where effects are applied can not be lossless.
  • Timeline section where transitions are applied can not be lossless.
  • Timeline section where contains more than one tracks can not be lossless.

We are doing a rework on this feature in order to avoid the confusion.

Link to comment
Share on other sites

1 minute ago, c_major said:

In order to export lossless, following conditions must applied:

  • Input and output codec must be H.264 and with same codec settings.
  • Output frame rate and resolution must be the same as input.
  • Timeline section where effects are applied can not be lossless.
  • Timeline section where transitions are applied can not be lossless.
  • Timeline section where contains more than one tracks can not be lossless.

We are doing a rework on this feature in order to avoid the confusion.

Again, thanks! Clip meets all conditions, I've tried adding the same clip in twice, even just once in it's own, and it's h264 as per sample uploaded, but it still exports lossy :/

Link to comment
Share on other sites

  • 4 months later...
  • 1 month later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...