Good Evening,
I'm responsible for delivering video to cable and network stations at work. Have been doing it for years without issue. We just picked up a new cable station as a client, and they have an ancient broadcast system of some type. Complicating the issue further, no-one who works there understands it at all. These were the initial specs I was given:
https://www.dropbox.com/s/nv5mu5tzcx4mvch/specs.JPG?dl=0
Easy enough, I thought. I delivered within those specs. However, their ops manager says the file is unrecognized by the system. He sends me a sample older file that does work in the system. This is the media info:
Duration : 13 min 47 s
Overall bit rate mode : Constant
Overall bit rate : 3 750 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty
Video
ID : 481 (0x1E1)
Menu ID : 1 (0x1)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings : CustomMatrix / BVOP
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : M=3, N=15
Format settings, picture st : Frame
Codec ID : 2
Duration : 13 min 47 s
Bit rate mode : Constant
Bit rate : 3 371 kb/s
Maximum bit rate : 3 250 kb/s
Width : 528 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.444
Time code of first frame : 00:00:00:00
Time code source : Group of pictures header
Stream size : 332 MiB (90%)
Audio
ID : 482 (0x1E2)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : 129
Duration : 13 min 47 s
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 18.9 MiB (5%)
Language : English
Service kind : Complete Main
I'm trying everything I can think of to match those exact specs. I'm using MediaCoder right now, as it seems to still work well with these older MPEG-2 TS settings. This is as close as I've gotten:
General
ID : 1 (0x1)
Complete name : D:\Downloads\Frontier\Frontier_Vantage_Week9_480i_ REV.mpg
Format : MPEG-TS
File size : 223 MiB
Duration : 8 min 20 s
Overall bit rate mode : Variable
Overall bit rate : 3 745 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty
Video
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings : BVOP
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : M=2, N=14
Format settings, picture st : Frame
Codec ID : 2
Duration : 8 min 20 s
Bit rate mode : Constant
Bit rate : 3 366 kb/s
Maximum bit rate : 3 250 kb/s
Width : 528 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.443
Time code of first frame : 00:00:00:00
Time code source : Group of pictures header
GOP, Open/Closed : Open
GOP, Open/Closed of first f : Closed
Stream size : 201 MiB (90%)
Audio
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : 129
Duration : 8 min 20 s
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -5 ms
Stream size : 11.5 MiB (5%)
Service kind : Complete Main
Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Duration : 8 min 20 s
List : 256 (0x100) (MPEG Video) / 257 (0x101) (AC-3)
Service name : Service01
Service provider : FFmpeg
Service type : digital television
I've worked on this for three days and I'm stuck. If anyone out there has experience with MPEG-2 TS, I'd really appreciate your advice. Especially regarding how to manually set the PID, and how I can pull the custom matrix out of the older file to use it for my conversions.
Thank you for any help you can offer.
- Walter
I'm responsible for delivering video to cable and network stations at work. Have been doing it for years without issue. We just picked up a new cable station as a client, and they have an ancient broadcast system of some type. Complicating the issue further, no-one who works there understands it at all. These were the initial specs I was given:
https://www.dropbox.com/s/nv5mu5tzcx4mvch/specs.JPG?dl=0
Easy enough, I thought. I delivered within those specs. However, their ops manager says the file is unrecognized by the system. He sends me a sample older file that does work in the system. This is the media info:
Duration : 13 min 47 s
Overall bit rate mode : Constant
Overall bit rate : 3 750 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty
Video
ID : 481 (0x1E1)
Menu ID : 1 (0x1)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings : CustomMatrix / BVOP
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : M=3, N=15
Format settings, picture st : Frame
Codec ID : 2
Duration : 13 min 47 s
Bit rate mode : Constant
Bit rate : 3 371 kb/s
Maximum bit rate : 3 250 kb/s
Width : 528 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.444
Time code of first frame : 00:00:00:00
Time code source : Group of pictures header
Stream size : 332 MiB (90%)
Audio
ID : 482 (0x1E2)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : 129
Duration : 13 min 47 s
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 18.9 MiB (5%)
Language : English
Service kind : Complete Main
I'm trying everything I can think of to match those exact specs. I'm using MediaCoder right now, as it seems to still work well with these older MPEG-2 TS settings. This is as close as I've gotten:
General
ID : 1 (0x1)
Complete name : D:\Downloads\Frontier\Frontier_Vantage_Week9_480i_ REV.mpg
Format : MPEG-TS
File size : 223 MiB
Duration : 8 min 20 s
Overall bit rate mode : Variable
Overall bit rate : 3 745 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty
Video
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings : BVOP
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : M=2, N=14
Format settings, picture st : Frame
Codec ID : 2
Duration : 8 min 20 s
Bit rate mode : Constant
Bit rate : 3 366 kb/s
Maximum bit rate : 3 250 kb/s
Width : 528 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.443
Time code of first frame : 00:00:00:00
Time code source : Group of pictures header
GOP, Open/Closed : Open
GOP, Open/Closed of first f : Closed
Stream size : 201 MiB (90%)
Audio
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : 129
Duration : 8 min 20 s
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -5 ms
Stream size : 11.5 MiB (5%)
Service kind : Complete Main
Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Duration : 8 min 20 s
List : 256 (0x100) (MPEG Video) / 257 (0x101) (AC-3)
Service name : Service01
Service provider : FFmpeg
Service type : digital television
I've worked on this for three days and I'm stuck. If anyone out there has experience with MPEG-2 TS, I'd really appreciate your advice. Especially regarding how to manually set the PID, and how I can pull the custom matrix out of the older file to use it for my conversions.
Thank you for any help you can offer.
- Walter