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  1. Member Zenjuro's Avatar
    Join Date: Nov 2011
    Location: Malaysia
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    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.
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  2. 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.
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  3. 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.
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  4. Member Zenjuro's Avatar
    Join Date: Nov 2011
    Location: Malaysia
    Search PM
    @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.
    http://i.imgur.com/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.
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  5. Member
    Join Date: Oct 2004
    Location: Freedonia
    Search Comp PM
    VideoReDo TV Suite could probably join them together without any problems, but it's not a free program.
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  6. Member Zenjuro's Avatar
    Join Date: Nov 2011
    Location: Malaysia
    Search PM
    Originally Posted by jman98 View Post
    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.
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  7. 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??
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