Constant bitrate in MPEG2 TS

[alighaemia]

Hello,

I want to use constant bitrate in MPEG-2 TS Broadcast Delivery plugin, but I can't. I tried to use this prarms, but it isn't working:

Code:

-omx_param:v "cfg_file_path=mp2m.video.ini"

Can you help me with how to use CBR in this plugin?

Best Regards

[Ivan Andryushin]

Hi alighaemia, you should try to set configuration file for MPEG-2 TS Broadcast Delivery plugin via -omx_format_param key. Example commandline for Windows would look like:

Code:

ffmpeg -i source.mp4 -c copy -f omx_ts_mux -omx_core omxil_core.dll -omx_format_name OMX.MainConcept.mux_mp2.other -omx_format_param "cfg_file_path=Test1.ini" output.ts -y

Let me know whether it works for you.

Best regards,
Ivan

[alighaemia]

With this configuration the video converted with AVC codec:

Code:

-c copy

Result:

Code:

General
ID                                       : 0 (0x0)
Complete name                            : C:\Program Files\MainConcept\FFmpeg-PlugIns\bin\output.ts
Format                                   : MPEG-TS
File size                                : 111 MiB
Duration                                 : 4 min 59 s
Start time                               : UTC 2022-04-19 22:05:15
End time                                 : UTC 2022-04-19 22:05:26
Overall bit rate mode                    : Variable
Overall bit rate                         : 3 108 kb/s

Video
ID                                       : 2064 (0x810)
Menu ID                                  : 3 (0x3)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Format settings, GOP                     : M=3, N=30
Codec ID                                 : 27
Duration                                 : 4 min 59 s
Bit rate mode                            : Constant
Nominal bit rate                         : 2 500 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.048

Audio
ID                                       : 2068 (0x814)
Menu ID                                  : 3 (0x3)
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Format version                           : Version 4
Muxing mode                              : ADTS
Codec ID                                 : 15-2
Duration                                 : 4 min 34 s
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                  : -80 ms

Menu
ID                                       : 129 (0x81)
Menu ID                                  : 3 (0x3)
Format                                   : AVC / AAC
List                                     : 2064 (0x810) (AVC) / 2068 (0x814) (AAC)

I want MPEG2 DVB codec.

[Ivan Andryushin]

This thread has been converted to email correspondence via apps.support@mainconcept.com and has been assigned with tracking number 02516897.
Me and my colleagues are continuing support on this matter via email.

Best regards,
Ivan

[Roman Artsimovich]

Hi,

Here's the command line to create an MPEG-2 TS DVB stream with MPEG-2 Video and AAC audio in:

Code:

.\ffmpeg.exe -i input.mp4 -vcodec mpeg2video -pix_fmt yuv420p -r 25 -s 720x576 -vb 6000k -bf 2 -g 12 -maxrate 8000k -minrate 6000k -video_format pal -acodec aac -b:a 160k -ac 2 -ar 44100 -aprofile mpeg2_aac_low -f omx_ts_mux -omx_core omxil_core.dll -omx_format_name OMX.MainConcept.mux_mp2.other -omx_format_param "cfg_file_path=DVB_Mux_only.ini" output_ffmpeg_cbr_test.ts -y

Best regards,
Roman