[FFmpeg-user] FFmpeg default processing(invisible processing)

Bouke / edit 'B bouke at editb.nl
Tue Dec 19 17:32:49 EET 2023


Top posting, as my mail client does now allow for decent parsing, and I’m fed up with that.

My command to create ‘’proper” XDcam HD 50Mb, as required by the broadcasters here.
Read between the filenames, it does work.

/Applications/ffmpeg -hide_banner -threads 0 -i /Users/bouke/yadda.mov -f lavfi -i anullsrc=channel_layout=mono:sample_rate=48000 -map 0:0 -map 0:1 -map 0:1 -map 1:0 -map 1:0 -map 1:0 -map 1:0 -map 1:0 -map 1:0 -c:a pcm_s24le -ar 48000 -map_channel 0.1.0:0.1 -c:a pcm_s24le -ar 48000 -map_channel 0.1.1:0.2 -c:a pcm_s24le -map_channel 1.0.0:0.3 -c:a pcm_s24le -map_channel 1.0.0:0.4 -c:a pcm_s24le -map_channel 1.0.0:0.5 -c:a pcm_s24le -map_channel 1.0.0:0.6 -c:a pcm_s24le -map_channel 1.0.0:0.7 -c:a pcm_s24le -map_channel 1.0.0:0.8 -af volume=-11.4dB -vf setfield=tff,scale=1920x1080:flags=lanczos -r 25 -flags +ilme+ildct -top 1 -c:v mpeg2video -b:v 50000k -maxrate 50000k -bufsize 3835k -minrate 50000k -pix_fmt yuv422p -profile:v 0 -level:v 2 -t 26 -timecode 00:00:00:00 /Volumes/Data/magweg/Mars_Mars-Delight_26_1_19-12-2023_HD.mxf -y 

 Trust me, this command (besides audio parsing, depending on sources) has made thousands of broadcast compliant files over here, where XDCAM is also mandatory.

Bouke 

> On 19 Dec 2023, at 06:56, 大石脩斗 <s-oishi at knb.ne.jp> wrote:
> 
> I'm trying to use ffmpeg to generate an MXF file that can be played on an
> XDCAM XDS-PD2000.
> Please tell me what default processing is performed in ffmpeg when no
> options are entered.
> 
> [background]
> Sony's check tool outputs an error saying "MXF metadata contains
> non-standard values".
> The data output by the editing machine is OK with the check tool,
> The data generated with ffmpeg will be rejected by the check tool.
> The metadata looks the same for both.
> Please let me know if you are processing anything other than the meta
> information that is being output
> 
> 【Data output by editing machine」
> aftertext.txt
> 
> 【Data output by ffmpeg】
> testffmpeg.txt
> commondlie
> ffmpeg.exe -i input\base.MXF -c:v mpeg2video -r 29.97 -pix_fmt yuv422p
> -aspect 16:9 -flags +ildct+ilme -b:v 50000000 -minrate 50000000 -maxrate
> 50000000 -bufsize 17825792 -bf 2 -metadata creation_time=now -video_format
> component -g 15 -timecode 00:59:45:00 -ac 1 -map 0:0 -map 0:1 -map 0:1 -map
> 0:1 -map 0:1 -map 0:1 -map 0:1 -map 0:1 -map 0:1 -c:a pcm_s24le -ar 48000
> -f mxf -y output/output_test.mxf
> 
> Shuto
> <testffmpeg.txt><aftertext.txt>_______________________________________________
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