Unable to play mp4

R

Robert4583

Member
Can someone identify what is wrong with the format of this video such that the Humax T2 cannot play it. Here is the mediainfo output as follows:

General
Complete name : C:\Users\Robert\Videos\2022-07-23 14-10-12.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 6.66 GiB
Duration : 1 h 28 min
Overall bit rate : 10.8 Mb/s
Writing application : Lavf58.76.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.2
Format settings : CABAC / 1 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 1 frame
Format settings, GOP : M=1, N=120
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 h 28 min
Bit rate : 10.6 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 60.000 FPS
Minimum frame rate : 58.824 FPS
Maximum frame rate : 62.500 FPS
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.085
Stream size : 6.53 GiB (98%)
Color range : Limited
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 1 h 28 min
Bit rate mode : Constant
Bit rate : 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
Stream size : 122 MiB (2%)
Title : simple_aac_recording
Default : Yes
Alternate group : 1
 
Don't presume. I just tried a number of different fps that were supported by the OBS software and that was the best that worked on my Humax T2.
 
Brilliant. I guess the hum bars the 0.03 Hz difference creates are tolerable, with a roll of around 30 seconds... or maybe something which contributes to NTSC's bad reputation.

But none of this is relevant to modern digital systems, it's just a hang-over.
 
Black Hole said:
it's just a hang-over.
Click to expand...
Probably what the people who designed NTSC had when they designed it.
You're right it doesn't seem relevant to modern digital systems. But neither does having video at ~30 fps on my phone, tablet and camera when I want/use 25 fps. (If only I could remember a foolproof method of converting between standards without the jerking/stuttering - but even UK TV companies air viewer generated carp [sic] badly converted)
 
A further problem has arisen with the audio. I have found the recordings I made at 59.94 when played on the humax have breaks in the sound every 10 seconds or so. I haven't measured the actual time intervals.

The recordings play on the PC using Splash Lite with no sound defects.

Can anyone spot a problem with the audio recording as listed in the mediainfo output in my original post?
 
I posted all the output from MediaInfo in my first post. I am not sure what to look out for, what may be wrong or not supported by the Humax. That is why I am asking here.
 
What does your stream inspector say about a HiDef recording file?
Click to expand...

An ad-detected episode of Hang Ups (C4HD) from 2018:
Code: 
General
ID                                       : 16516 (0x4084)
Complete name                            : /run/user/1000/gvfs/nfs:host=humax.local,prefix=%2Fmedia%2Fdrive1/Video/Hang Ups_20180905_2201.ts
Format                                   : BDAV
Format/Info                              : Blu-ray Video
File size                                : 1 006 MiB
Duration                                 : 33mn 28s
Overall bit rate mode                    : Variable
Overall bit rate                         : 4 200 Kbps

Video
ID                                       : 301 (0x12D)
Menu ID                                  : 17664 (0x4500)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : 27
Duration                                 : 8mn 38s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 fps
Standard                                 : Component
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 302 (0x12E)
Menu ID                                  : 17664 (0x4500)
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Muxing mode                              : LATM
Codec ID                                 : 17
Duration                                 : 33mn 28s
Bit rate mode                            : Variable
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Frame rate                               : 46.875 fps (1024 spf)
Compression mode                         : Lossy
Delay relative to video                  : -1s 152ms
Language                                 : English
descriptor_tag_extension                 : 6

Text
ID                                       : 305 (0x131)
Menu ID                                  : 17664 (0x4500)
Format                                   : DVB Subtitle
Codec ID                                 : 6
Duration                                 : 33mn 24s
Delay relative to video                  : 2s 520ms
Language                                 : English

Menu
ID                                       : 300 (0x12C)
Menu ID                                  : 17664 (0x4500)
Duration                                 : 33mn 28s
List                                     : 301 (0x12D) (AVC) / 302 (0x12E) (AAC, English) / 306 (0x132) (AAC) / 305 (0x131) (DVB Subtitle, English)
Language                                 :  / English /  / English
 
Robert4583 said:
I posted all the output from MediaInfo in my first post. I am not sure what to look out for, what may be wrong or not supported by the Humax. That is why I am asking here.
Click to expand...
Exactly! What I have suggested you do is post up the results of running MediaInfo (which is a stream inspector) on a HiDef .ts file as recorded. HiDef, because those are AAC.

In the absence of you being willing to help solve your problem, /df has done it for you (but it would be better if you had).

Side-by-side comparison:
Code: 
Audio                     Yours                                    /df's
ID                        : 2                                      : 302 (0x12E)
Menu ID                   :                                        : 17664 (0x4500)
Format                    : AAC LC                                 : AAC
Format/Info               : Advanced Audio Codec Low Complexity    : Advanced Audio Codec
Format profile            :                                        : LC
Muxing mode               :                                        : LATM
Codec ID                  : mp4a-40-2                              : 17
Duration                  : 1 h 28 min                             : 33mn 28s
Bit rate mode             : Constant                               : Variable
Bit rate                  : 192 kb/s
Channel(s)                : 2 channels                             : 2 channels
Channel positions         : L R                                    : Front: L R
Sampling rate             : 48.0 kHz                               : 48.0 KHz
Frame rate                : 46.875 FPS (1024 SPF)                  : 46.875 fps (1024 spf)
Compression mode          : Lossy                                  : Lossy
Stream size               : 122 MiB (2%)
Title                     : simple_aac_recording
Default                   : Yes
Alternate group           : 1
Delay relative to video                                            : -1s 152ms
Language                                                           : English
descriptor_tag_extension                                           : 6
The differences in presentation / syntax might indicate you're using different versions of MediaInfo. Maybe the missing items indicate those parameters do not exist in that particular file. There are notable differences – which ones are important is for you to decide... but I would start with "AAC LC".
 
I am sorry but you didn't really make yourself clear as to want you wanted. If you had included .ts in your first comment I would understood. As it is I had already done the comparison myself.

Output from a HiDef recording made on my humax is as follows:
Audio
ID : 102 (0x66)
Menu ID : 17472 (0x4440)
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Muxing mode : LATM
Codec ID : 17-2
Duration : 1 h 0 min
Bit rate mode : Variable
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Delay relative to video : -1 s 95 ms
Language : English
Editorial classification : Main
Mix type : Independent

Text
ID : 105 (0x69)
Menu ID : 17472 (0x4440)
Format : DVB Subtitle
Codec ID : 6
Duration : 1 h 0 min
Delay relative to video : 3 s 288 ms
Language : English

The differences I see are Muxing mode, Codec ID and Bit rate mode. I have no idea about any of these. The format AAC LC are the same for both recordings.
 
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