Transformation of the transport stream video to MP4 or MKV(without ffmpeg)

[Stears555]

Hello!

It is well known, that the lossless (direct stream copy) transformation of Transport stream files (MTS TS M2TS) into MP4 & MKV format cause FPS problems.
Forexample 25i files were tranformed into wrong 50p files by ffmpeg commandline and FFMPEG-based softwares.

Can you recommend a converter, which know the direct-stream copy technology, which can preserve the original frame-rate of tranport stream videos, and which doesn't based on FFMPEG?

Thank you for your reply!

[Baldrick]

mkvmerge and mp4box.

[Stears555]

mkvmerge and mp4box.

Both based on ffmpeg, therefore they produced the same fps problems ((

[poisondeathray]

mkvmerge and mp4box.

Both based on ffmpeg, therefore they produced the same fps problems ((

actually neither are based on ffmpeg

you can try ffmbc - it has fewer issues with interlaced transport streams

or gdsmux (comes with haali media splitter) - it's a directshow based muxer, so if your directshow filters are configured properly it has a better chance of working properly

[Stears555]

mkvmerge and mp4box.

Both based on ffmpeg, therefore they produced the same fps problems ((

actually neither are based on ffmpeg

you can try ffmbc - it has fewer issues with interlaced transport streams

or gdsmux (comes with haali media splitter) - it's a directshow based muxer, so if your directshow filters are configured properly it has a better chance of working properly

Hello!

I tried hali's gdsmux, but it produced wrong fps too...

[poisondeathray]

maybe your directshow filters aren't configured properly? or you have abnormal stream ?

you can try ffmbc

[poisondeathray]

The ffmpeg handling of interlaced transport stream is a very well known issue . Do you see how ffmbc gets the fps correct? It even identifies the interlacing, field order correctly:

Sample 1080i50 AVCHD stream:

FFMPEG

Input #0, mpegts, from 'test.mts':
  Duration: 00:00:20.29, start: 1.000033, bitrate: 17281 kb/s
  Program 1 
    Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, s16, 256 kb/s
    Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090)

FFMBC

Input #0, mpegts, from 'test.mts':
  Duration: 00:00:20.32, start: 0.974189, bitrate: 17259 kb/s
  Program 1
    Stream #0.0[0x1011](und): Video: h264 (High), yuv420p, 1920x1080i tff [PAR 1:1 DAR 16:9], 25.00 fps
    Stream #0.1[0x1100](und): Audio: ac3, 48000 Hz, stereo, s16, 256 kb/s
    Stream #0.2[0x1200](und): Subtitle: pgssub

When remuxed, the fps is correct . However, interlaced AVC handling can be problematic in mkv or mp4 by other applications. Usually it's best to leave in transport stream

FFMPEG

Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 39.6 MiB
Duration                                 : 20s 288ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 16.4 Mbps
Writing application                      : Lavf54.31.100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.0
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 2 frames
Format settings, GOP                     : M=2, N=13
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 20s 280ms
Bit rate mode                            : Variable
Bit rate                                 : 16.0 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 50.000 fps
Original frame rate                      : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.154
Stream size                              : 38.9 MiB (98%)

Audio
ID                                       : 2
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Format settings, Endianness              : Big
Codec ID                                 : ac-3
Duration                                 : 20s 288ms
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
Compression mode                         : Lossy
Stream size                              : 634 KiB (2%)

FFMBC

Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42
File size                                : 39.5 MiB
Duration                                 : 20s 288ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 16.3 Mbps
Writing application                      : FFmbc 0.7

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.0
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 2 frames
Format settings, GOP                     : M=2, N=13
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 20s 280ms
Bit rate mode                            : Variable
Bit rate                                 : 16.0 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.309
Stream size                              : 38.9 MiB (98%)


Audio
ID                                       : 2
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Format settings, Endianness              : Big
Codec ID                                 : ac-3
Duration                                 : 20s 288ms
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
Compression mode                         : Lossy
Delay relative to video                  : 40ms
Stream size                              : 634 KiB (2%)

If you cannot figure it out, upload a small sample stream, there might be some other things wrong with it

[Stears555]

Here is the file: http://dictaphone.atw.hu/mozdony.MTS (it's only 70 Mbyte, PAL Progressive segmented frame 24Mbit/s)

[poisondeathray]

This isn't an interlaced (content) transport stream (it's 25p content , but encoded interlaced)

gdsmux and mkvmerge will get the framerate correct, but only directshow players will play it properly - ffmpeg based ones (e.g. vlc, smplayer) will misinterpret the field rate as the frame rate (same ffmpeg problem)

[Stears555]

Are there any development in that problematic situation?