Avidemux Variable Frame Rate

[ThatFox]

Hi Guys,
Newly registered but have read some forum posts from here before and have had some great help specially when I was trying to find converters and encoders. Onto my main concern, I have a problem with Avidemux and hopefully you guys can help me. The problem is that when I try to join 2 MP4 files that are h.264, both of them have the same 'Constant Frame Rate' which is 30 but when I join them via Avidemux using append and use Copy for the Video and Output as MP4v2 it becomes 'Variable Frame Rate' which has a minimum of 7FPS and a maximum of 30FPS. The only setting I've changed is the Audio part to be encoded to AAC (lav). Did that setting affect the video somehow?

Let me know what you guys think.

Thanks!

[Baldrick]

What says that? Mediainfo?
Does it play ok?

[ThatFox]

What says that? Mediainfo?
Does it play ok?

Sorry for the terribly long reply, I thought my thread wasn't approved or was gone since I haven't seen it after a few hours when I posted it. It does play fine but my main problem is when I upload it on Youtube it doesn't get read as 60FPS because of the Variable FPS thing even though the files I put on Avidemux are constant 60 FPS files. X mark that one the other is a Constant 60 FPS file while the other one that I've run through Avidemux to put my edited Audio becomes a Variable one ranginge from 59FPS to 60FPS. What I don't get is when I combine them it outputted to 20FPS to 60FPS.

[ThatFox]

Update: Kindly please close this as I managed to make a workaround using Staxrip letting the FPS intact in Constant 60FPS with just a little bit hit on Quality since merging 2 MP4 in Stax becomes MKV which I need to convert to MP4 again.

[newpball]

The problem is that when I try to join 2 MP4 files that are h.264, both of them have the same 'Constant Frame Rate' which is 30
...
It does play fine but my main problem is when I upload it on Youtube it doesn't get read as 60FPS because of the Variable FPS thing even though the files I put on Avidemux are constant 60 FPS files.

You say the videos are 30fps, then you merge them, why do you expect YouTube to see them as 60fps?

That does not make any sense. Frame rates do not double by merging two files.

[ThatFox]

The problem is that when I try to join 2 MP4 files that are h.264, both of them have the same 'Constant Frame Rate' which is 30
...
It does play fine but my main problem is when I upload it on Youtube it doesn't get read as 60FPS because of the Variable FPS thing even though the files I put on Avidemux are constant 60 FPS files.

You say the videos are 30fps, then you merge them, why do you expect YouTube to see them as 60fps?

That does not make any sense. Frame rates do not double by merging two files.

Since I left the thread for quite a long while. I haven't read it again before posting my latest post. I have 2 types of videos the other is 30FPS and the others are 60FPS. They still both have the same problem which is that the Frame Rate becomes from Constant to Variable. Now, I have no qualms when I upload my 30FPS videos that time even though it's on Variable since it'll only output 30FPS still on YouTube. My latest post I did mention "even though the files I put on Avidemux are constant 60 FPS files", the files are constant 60FPS and not combined 60FPS that would only mean that they are 60FPS files each.

Moving on, the problem with Avidemux when I try to use it to Combine/Append as well as put my Edited Audio it makes the Constant FPS 30/60 to a Variable one. Uploading the Variable 30FPS one is no problem but the problem is with my 60FPS videos since I tried uploading one after my #3 post and it didn't become read as 60FPS.

Here is the Media Info for the one I uploaded and has gone through Avidemux since I put my edited Audio in it and then Append since I inserted my Intro to it. The video is set to copy as always.

Format                      : MPEG-4
Format profile              : Base Media / Version 2
Codec ID                    : mp42
File size                   : 2.57 GiB
Duration                    : 39mn 49s
Overall bit rate mode       : Variable
Overall bit rate            : 9 251 Kbps
Encoded date                : UTC 2015-06-20 18:38:09
Tagged date                 : UTC 2015-06-20 18:38:51

Video
ID                          : 1
Format                      : AVC
Format/Info                 : Advanced Video Codec
Format profile              : High@L3.2
Format settings, CABAC      : Yes
Format settings, ReFrames   : 2 frames
Codec ID                    : avc1
Codec ID/Info               : Advanced Video Coding
Duration                    : 39mn 49s
Bit rate                    : 9 050 Kbps
Width                       : 1 280 pixels
Height                      : 720 pixels
Display aspect ratio        : 16:9
Frame rate mode             : Variable
Frame rate                  : 60.000 fps
Minimum frame rate          : 20.000 fps
Maximum frame rate          : 60.040 fps
Color space                 : YUV
Chroma subsampling          : 4:2:0
Bit depth                   : 8 bits
Scan type                   : Progressive
Bits/(Pixel*Frame)          : 0.164
Stream size                 : 2.52 GiB (98%)
Encoded date                : UTC 2015-06-20 18:38:09
Tagged date                 : UTC 2015-06-20 18:38:51

Audio
ID                          : 2
Format                      : AAC
Format/Info                 : Advanced Audio Codec
Format profile              : LC
Codec ID                    : 40
Duration                    : 39mn 49s
Bit rate mode               : Variable
Bit rate                    : 192 Kbps
Channel(s)                  : 2 channels
Channel positions           : Front: L R
Sampling rate               : 48.0 KHz
Compression mode            : Lossy
Stream size                 : 54.7 MiB (2%)
Title                       : Stereo
Encoded date                : UTC 2015-06-20 18:38:09
Tagged date                 : UTC 2015-06-20 18:38:51

I don't save the Old/In-Process files once I've uploaded them so here is just the MediaInfo for the Intro.

Format                      : MPEG-4
Format profile              : Base Media
Codec ID                    : isom
File size                   : 11.9 MiB
Duration                    : 12s 863ms
Overall bit rate mode       : Variable
Overall bit rate            : 7 751 Kbps
Encoded date                : UTC 2015-06-11 19:16:16
Tagged date                 : UTC 2015-06-11 19:16:16

Video
ID                          : 1
Format                      : AVC
Format/Info                 : Advanced Video Codec
Format profile              : High@L3.2
Format settings, CABAC      : Yes
Format settings, ReFrames   : 2 frames
Codec ID                    : avc1
Codec ID/Info               : Advanced Video Coding
Duration                    : 12s 800ms
Bit rate                    : 7 385 Kbps
Maximum bit rate            : 10.1 Mbps
Width                       : 1 280 pixels
Height                      : 720 pixels
Display aspect ratio        : 16:9
Frame rate mode             : Constant
Frame rate                  : 60.000 fps
Color space                 : YUV
Chroma subsampling          : 4:2:0
Bit depth                   : 8 bits
Scan type                   : Progressive
Bits/(Pixel*Frame)          : 0.134
Stream size                 : 11.3 MiB (95%)
Title                       : Video
Encoded date                : UTC 2015-06-11 19:16:16
Tagged date                 : UTC 2015-06-11 19:16:16

Audio
ID                          : 2
Format                      : AAC
Format/Info                 : Advanced Audio Codec
Format profile              : LC
Codec ID                    : 40
Duration                    : 12s 863ms
Bit rate mode               : Variable
Bit rate                    : 396 Kbps
Maximum bit rate            : 455 Kbps
Channel(s)                  : 2 channels
Channel positions           : Front: L R
Sampling rate               : 48.0 KHz
Compression mode            : Lossy
Stream size                 : 621 KiB (5%)
Title                       :  
Encoded date                : UTC 2015-06-11 19:16:12
Tagged date                 : UTC 2015-06-11 19:16:16

In case you're curious, here is the MediaInfo for my 60FPS videos if the Audio isn't edited or isn't combined/appended to anything.

Format                      : MPEG-4
Format profile              : Base Media / Version 1
Codec ID                    : mp41
File size                   : 2.02 GiB
Duration                    : 30mn 45s
Overall bit rate            : 9 402 Kbps
Encoded date                : UTC 2015-05-27 14:18:58
Tagged date                 : UTC 2015-05-27 14:18:58

Video
ID                          : 1
Format                      : AVC
Format/Info                 : Advanced Video Codec
Format profile              : High@L3.2
Format settings, CABAC      : Yes
Format settings, ReFrames   : 2 frames
Format settings, GOP        : M=3, N=121
Muxing mode                 : Container profile=Baseline@3.0
Codec ID                    : avc1
Codec ID/Info               : Advanced Video Coding
Duration                    : 30mn 45s
Bit rate                    : 9 247 Kbps
Width                       : 1 280 pixels
Height                      : 720 pixels
Display aspect ratio        : 16:9
Frame rate mode             : Constant
Frame rate                  : 60.000 fps
Color space                 : YUV
Chroma subsampling          : 4:2:0
Bit depth                   : 8 bits
Scan type                   : Progressive
Bits/(Pixel*Frame)          : 0.167
Stream size                 : 1.99 GiB (98%)
Language                    : English
Encoded date                : UTC 2015-05-27 14:18:58
Tagged date                 : UTC 2015-05-27 14:18:58

Audio
ID                          : 2
Format                      : AAC
Format/Info                 : Advanced Audio Codec
Format profile              : LC
Codec ID                    : 40
Duration                    : 30mn 45s
Bit rate mode               : Constant
Bit rate                    : 128 Kbps
Channel(s)                  : 2 channels
Channel positions           : Front: L R
Sampling rate               : 96.0 KHz
Compression mode            : Lossy
Stream size                 : 28.1 MiB (1%)
Language                    : English
Encoded date                : UTC 2015-05-27 14:18:58
Tagged date                 : UTC 2015-05-27 14:18:58

[ThatFox]

Scratch my previous post, YouTube decided to add 60FPS to my Video now that I have checked again and I was mindblown.

[newpball]

Scratch my previous post, YouTube decided to add 60FPS to my Video now that I have checked again and I was mindblown.

It can take awhile before YouTube has transcoded all formats and it does the higher frame rates last.

[ThatFox]

Scratch my previous post, YouTube decided to add 60FPS to my Video now that I have checked again and I was mindblown.

It can take awhile before YouTube has transcoded all formats and it does the higher frame rates last.

I was weirded out since normally when I upload a 720p 60FPS video, if it's still not finish it only shows up to 480p then later 720p60fps which wasn't the case on my earlier posts so I freaked out and thought YouTube didn't read it as 60fps because it became variable. Good thing I checked again and it's a huge weight off my back to know I wouldn't have to subject my encoded file to another encode.