Video playback problem after concatenated

[Zenjuro]

Hey guys,
The video is in MP4 and I just want it to be concatenate without reencoding. It was actually fine after joined but when I played it and drag it around, the video will be grey-like. The audio is fine. The only problem is the video playback after joined it.
I've tried avidemux, ffmpeg, mp4joiner, yamb and all of them gave me the same result.


Thanks for your concern.

[Selur]

Wild guess: the content of the mp4 files you used is not compatible with each other.
-> compare the detailed analysis outputs of MediaInfo for a rough comparison of the two files.

[hello_hello]

Try appending with MKVMergeGUI. The output will be MKV but if there's an issue it should offer a warning or error. Maybe MP4 muxers aren't as informative. I'm not sure as I rarely use MP4 myself.

An alternative might be to remux them as individual MKVs, but MKVs can be linked. A player which supports linked MKVs should play them as a single file (or automatically play them one after the other) even if the video/audio are different.

[Zenjuro]

@Selur: There are 4 parts in the video:

General
Complete name : C:\Users\Namja\Downloads\Video\Jessica & Krystal EP1 P1.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 179 MiB
Duration : 11mn 43s
Overall bit rate mode : Variable
Overall bit rate : 2 128 Kbps
Writing application : Lavf55.19.104

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 11mn 43s
Bit rate : 1 992 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.072
Stream size : 167 MiB (94%)
Writing library : x264 core 140 r2377M 1ca7bb9

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 11mn 43s
Duration_LastFrame : -17ms
Bit rate mode : Variable
Bit rate : 128 Kbps
Maximum bit rate : 3 000 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 10.7 MiB (6%)

General
Complete name : C:\Users\Namja\Downloads\Video\Jessica & Krystal EP1 P2.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 179 MiB
Duration : 11mn 45s
Overall bit rate mode : Variable
Overall bit rate : 2 129 Kbps
Writing application : Lavf55.19.104

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 11mn 45s
Bit rate : 1 993 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.072
Stream size : 168 MiB (94%)
Writing library : x264 core 140 r2377M 1ca7bb9

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 11mn 45s
Duration_LastFrame : -17ms
Bit rate mode : Variable
Bit rate : 128 Kbps
Maximum bit rate : 3 000 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 10.8 MiB (6%)

General
Complete name : C:\Users\Namja\Downloads\Video\Jessica & Krystal EP1 P3.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 180 MiB
Duration : 11mn 47s
Overall bit rate mode : Variable
Overall bit rate : 2 131 Kbps
Writing application : Lavf55.19.104

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 11mn 47s
Bit rate : 1 994 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.072
Stream size : 168 MiB (94%)
Writing library : x264 core 140 r2377M 1ca7bb9

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 11mn 46s
Duration_LastFrame : -10ms
Bit rate mode : Variable
Bit rate : 128 Kbps
Maximum bit rate : 3 000 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 10.8 MiB (6%)

General
Complete name : C:\Users\Namja\Downloads\Video\Jessica & Krystal EP1 P4.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 179 MiB
Duration : 11mn 43s
Overall bit rate mode : Variable
Overall bit rate : 2 127 Kbps
Writing application : Lavf55.19.104

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 11mn 43s
Bit rate : 1 991 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.072
Stream size : 167 MiB (94%)
Writing library : x264 core 140 r2377M 1ca7bb9

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 11mn 43s
Duration_LastFrame : -17ms
Bit rate mode : Variable
Bit rate : 128 Kbps
Maximum bit rate : 3 000 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 10.7 MiB (6%)

@hello_hello: There are warning given after I mux it.
https://forum.videohelp.com/images/imgfiles/4xHXMkA.png

I have also tried extract .h264 and .aac using mkvextract and then remux it with mkvmerge.
No error or warning given but the video still choppy.

[jman98]

VideoReDo TV Suite could probably join them together without any problems, but it's not a free program.

[Zenjuro]

VideoReDo TV Suite could probably join them together without any problems, but it's not a free program.

It works like a charm. I found the software somewhere and it works just fine for my video.
Thanks everyone for helping me out.

[hello_hello]

For the record, I'm pretty sure the problem relates to this x264 option (given the warning MKVMergeGUI offered). https://mailman.videolan.org/pipermail/x264-devel/2013-July/010167.html

Unless the video was encoded in one go, then split, in which case it probably wouldn't apply. I think changes were made to the encoder which effected the ability to append files and the stitchable option was added a little later to fix that...... so you could originally append encodes, then not so much for a few x264 versions, then you could again.

I'd be interested to learn how VideoReDo appends the video without it resulting in the same playback issue, assuming I'm on the right track regarding the cause. Anyone know??