How to add two MP4 files?

[ConverterCrazy]

Hi,

I want to add two clips to make one video file. The problem is both are very different kind of MP4 files.
So, a lot of work need be done.

Clip #1

[FONT="Courier New"]General
Complete name                  : C:\Users\…\Desktop\Best1.mp4
Format                         : MPEG-4
Format profile                 : Base Media
Codec ID                       : isom (isom/iso2/avc1/mp41)
File size                      : 3.36 MiB
Duration                       : 14 s 979 ms
Overall bit rate mode          : Variable
Overall bit rate               : 1 883 kb/s
Writing application            : Lavf58.76.100

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High@L3.1
Format settings                : CABAC / 4 Ref Frames
Format settings, CABAC         : Yes
Format settings, Reference fra : 4 frames
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 14 s 967 ms
Source duration                : 14 s 900 ms
Nominal bit rate               : 1 685 kb/s
Maximum bit rate               : 1 696 kb/s
Width                          : 608 pixels
Height                         : 1 080 pixels
Display aspect ratio           : 0.563
Frame rate mode                : Constant
Frame rate                     : 30.000 FPS
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.086
Source stream size             : 3.01 MiB (90%)
Writing library                : x264 core 157 r2969
Encoding settings              : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x133 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / 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=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=1685 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
mdhd_Duration                  : 14967
Codec configuration box        : avcC

Audio
ID                             : 2
Format                         : AAC LC
Format/Info                    : Advanced Audio Codec Low Complexity
Codec ID                       : mp4a-40-2
Duration                       : 14 s 979 ms
Source duration                : 14 s 912 ms
Bit rate mode                  : Variable
Nominal bit rate               : 187 kb/s
Maximum bit rate               : 192 kb/s / 192 kb/s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 48.0 kHz
Frame rate                     : 46.875 FPS (1024 SPF)
Compression mode               : Lossy
Source stream size             : 340 KiB (10%)
Default                        : Yes
Alternate group                : 1
mdhd_Duration                  : 14979




Clip #2

General
Complete name                  : C:\Users\…\Desktop\Best.mp4
Format                         : MPEG-4
Format profile                 : Base Media / Version 2
Codec ID                       : mp42 (mp42/isom)
File size                      : 2.59 MiB
Duration                       : 10 s 426 ms
Overall bit rate               : 2 081 kb/s

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High@L3
Format settings                : CABAC / 1 Ref Frames
Format settings, CABAC         : Yes
Format settings, Reference fra : 1 frame
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 10 s 400 ms
Bit rate                       : 1 955 kb/s
Width                          : 352 pixels
Height                         : 640 pixels
Display aspect ratio           : 0.550
Frame rate mode                : Constant
Frame rate                     : 60.000 FPS
Standard                       : NTSC
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.145
Stream size                    : 2.42 MiB (94%)
Color range                    : Limited
Color primaries                : BT.601 PAL
Codec configuration box        : avcC

Audio
ID                             : 2
Format                         : AAC LC
Format/Info                    : Advanced Audio Codec Low Complexity
Codec ID                       : mp4a-40-2
Duration                       : 10 s 426 ms
Bit rate mode                  : Constant
Bit rate                       : 128 kb/s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 44.1 kHz
Frame rate                     : 43.066 FPS (1024 SPF)
Compression mode               : Lossy
Stream size                    : 161 KiB (6%)

Is it possible to add them or convert into a file where they play alternately in the same frame?

Thanks.

[LawrenceWilliams]

Hi there! Yes, it is possible to combine two MP4 files into one video file, even if they are different types. However, you may need to convert one or both of the files to a compatible format first.
As I know, to combine the files, you can use a video editing software such as Adobe Premiere Pro, Final Cut Pro, essay or iMovie. Import both MP4 files into the software, and then drag them onto the timeline in the order that you want them to play. You can then adjust the settings as necessary, such as the size and position of each clip on the screen.
If the two files are not compatible with the video editing software, you can convert them into a compatible format using a free online converter such as Online-Convert.com or CloudConvert.com. Simply upload the file, choose the desired output format, and download the converted file.
I hope this helps! Let me know if you have any further questions.
Cheers, newbie Lawrence

[ProWo]

You could also try clever FFmpeg-GUI (maybe without reencoding).

Load your first mp4, click main, click multiplex, set ts as container, click multiplex.
If done, you will find a Ts file with the same name in the destination folder.

Do the same for the second mp4.

Then load the first ts, click main, click join, drag & drop the second ts file and click join.
If done, you will find a new Ts file with "joined" in the name in the destination folder.

Test if plays fine.

[ConverterCrazy]

Hi there! Yes, it is possible to combine two MP4 files into one video file, even if they are different types. However, you may need to convert one or both of the files to a compatible format first.
As I know, to combine the files, you can use a video editing software such as Adobe Premiere Pro, Final Cut Pro, or iMovie. Import both MP4 files into the software, and then drag them onto the timeline in the order that you want them to play. You can then adjust the settings as necessary, such as the size and position of each clip on the screen.
If the two files are not compatible with the video editing software, you can convert them into a compatible format using a free online converter such as Online-Convert.com or CloudConvert.com. Simply upload the file, choose the desired output format, and download the converted file.
I hope this helps! Let me know if you have any further questions.
Cheers, newbie Lawrence

I will use free converters.

Thanks.

[alex]

You could try http://freevideojoiner.com/
[Attachment 69931 - Click to enlarge]

[ConverterCrazy]

You could also try clever FFmpeg-GUI (maybe without reencoding).

Load your first mp4, click main, click multiplex, set ts as container, click multiplex.
If done, you will find a Ts file with the same name in the destination folder.

Do the same for the second mp4.

Then load the first ts, click main, click join, drag & drop the second ts file and click join.
If done, you will find a new Ts file with "joined" in the name in the destination folder.

Test if plays fine.

Thanks.

The 'join' didn't work for me, however, transfer to TS container did.

Then I played both files three times in PotPayer and recorded the video.
After that using AVIDEMUX, I removed the unwanted parts from the recorded video.

The last thing to do was to edit audio track in Audacity and silence the extra parts.

I am yet to know any free audio editor like WavePad which allows precise editing in at slow
playing speed.

Thanks.

[ConverterCrazy]

Thank you for the suggestions.