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OsloBergen

macrumors member
Original poster
Jun 15, 2010
64
2
I've been adding all of my movie files into iTunes and have found one that for some reason can't be added. It plays in QT and as far as I can tell all of the specs are correct. Can anyone see something wrong with this file that I am missing?
This came from MediaInfo.

Code:
General
Complete name : Safety Last!.m4v
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 15.1 GiB
Duration : 1h 13mn
Overall bit rate mode : Variable
Overall bit rate : 29.2 Mbps
Recorded date : 1923-4-1T09:00:00Z
Tagged date : UTC 2014-01-26 21:07:51
Writing application : Lavf54.63.104

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Muxing mode : Container profile=High@4.0
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1h 13mn
Bit rate mode : Variable
Bit rate : 28.7 Mbps
Maximum bit rate : 37.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 29.970 fps
Minimum frame rate : 29.304 fps
Maximum frame rate : 30.303 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Bits/(Pixel*Frame) : 0.462
Stream size : 14.8 GiB (98%)
Language : English

Audio #1
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1h 13mn
Duration_LastFrame : -9ms
Bit rate mode : Variable
Bit rate : 164 Kbps
Maximum bit rate : 175 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 86.9 MiB (1%)
Language : English

Audio #2
ID : 3
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1h 13mn
Duration_LastFrame : -9ms
Bit rate mode : Variable
Bit rate : 161 Kbps
Maximum bit rate : 172 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 85.0 MiB (1%)
Language : English

Audio #3
ID : 4
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1h 13mn
Bit rate mode : Variable
Bit rate : 158 Kbps
Maximum bit rate : 169 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 83.4 MiB (1%)
Language : English
 

Cinephi1e

macrumors regular
Jul 19, 2012
107
0
Northwest Ohio
I am guessing that the reason is that you have just barely exceeded the specs on the max frame rate. I believe it is 30 fps while your video is 30.303 fps.
 

priitv8

macrumors 601
Jan 13, 2011
4,028
638
Estonia
Code:
General
Complete name : Safety Last!.m4v
Format : MPEG-4
Format profile : Base Media
[COLOR="Red"]Codec ID : isom
[/COLOR]File size : 15.1 GiB
Duration : 1h 13mn
Overall bit rate mode : Variable
Overall bit rate : 29.2 Mbps
Recorded date : 1923-4-1T09:00:00Z
Tagged date : UTC 2014-01-26 21:07:51
Writing application : Lavf54.63.104
To be honest, I have not seen this isom codec ID before.
E.g. one of the movies I have converted with HandBrake, carries this informaton:
Code:
General
Format                           : MPEG-4
Format profile                   : Base Media / Version 2
[COLOR="red"]Codec ID                         : mp42
[/COLOR]File size                        : 1.72 GiB
Duration                         : 1h 45mn
Overall bit rate                 : 2 331 Kbps
Writing application              : HandBrake 0.9.9 2013051800
 

OsloBergen

macrumors member
Original poster
Jun 15, 2010
64
2
I am guessing that the reason is that you have just barely exceeded the specs on the max frame rate. I believe it is 30 fps while your video is 30.303 fps.

I'm pretty sure you're right. I checked a handful of my other files and nothing got much higher than a little above 24 fps. I wonder why this file is different.

To be honest, I have not seen this isom codec ID before.
E.g. one of the movies I have converted with HandBrake, carries this informaton:

I use MP4Tools when I just want to change the container, I guess isom is related to that.

Thanks to both of you for your help. I'll keep tinkering until I find a solution.
 

westrock2000

macrumors 6502a
Oct 18, 2013
524
22
I am guessing that the reason is that you have just barely exceeded the specs on the max frame rate. I believe it is 30 fps while your video is 30.303 fps.


This is what jumped out to me as well.

EDIT: Woops, actually I meant the bitrate. Have you played other videos that have 30Mb/s? bitrate? That's really high for h264. I'm actually really surprised it only comes out to 15GB. I do half that for my 1080p movies and I get about 10-12GB per movie.
 

OsloBergen

macrumors member
Original poster
Jun 15, 2010
64
2
This is what jumped out to me as well.

EDIT: Woops, actually I meant the bitrate. Have you played other videos that have 30Mb/s? bitrate? That's really high for h264. I'm actually really surprised it only comes out to 15GB. I do half that for my 1080p movies and I get about 10-12GB per movie.

After I read your post I started checking other files for their bit rate and found that the TV version of Repo Man also had a max rate of 37 Mbps with the max frame rate at 30.303 fps. It was also missing from the library. I need to do a more thorough check next time. Thanks for the info.
 

OsloBergen

macrumors member
Original poster
Jun 15, 2010
64
2
Thanks to everyone with their suggestions. I re-encoded the two files instead of using pass thru and this brought them back down to the required standards. I'm not sure why things expanded like they did, the bit rate for Safety Last's mkv file was around 27 Mbps, but the Repo Man mkv was only 15 Mbps. I don't know enough about the process to understand why it would go from 15 to over 30, but changing it from pass thru to 2-pass in MP4Tools worked.
 
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