[Cin] Blu-ray compliant MPEG-2 SD video with LPCM audio

Terje J. Hanssen terjejhanssen at gmail.com
Mon Nov 29 00:30:14 CET 2021


2) SD ProRes.mov, 422 (HQ) 10-bit video with LPCM stereo audio :)


Den 28.11.2021 22:48, skrev Terje J. Hanssen:
> The source video files I want to convert to Blu-ray compliant MPEG-2 
> SD video with LPCM audio are:
> 1) DV25.dv, 720 x 576 (PAL), 50i 4:2:0 video with LPCM stereo audio
> and
> 2) SD ProRes.mov, 422 (HQ) 19-bit video with LPCM stereo audio
>
> The purpose is to get better MPEG-2 quality using higher (highest) 
> possible bitrate than for DVD video.
> (Yes, I have tested h.264 via Cin-GG)
>
>
> Here a sample ffmpeg command script found for HD video with PCM 
> (Blu-ray not mentioned):
> https://gist.github.com/avoidik/153879c06afdcaad8d69b38bcc00abb7
> # with PCM 16-bit audio (uncompressed), constant video bitrate with 
> specific bitrate tolerance
>
> ffmpeg -i "input.mp4" \
>   -c:v mpeg2video -pix_fmt yuv422p -refs 1 -bf 2 -b:v 50M -maxrate 50M 
> -minrate 50M \
>   -s 1920x1080 -aspect 16:9 \
>   -c:a pcm_s16be -f vob \
>   "output.mpg"
>
>
> Suggestion to FFMpeg command to convert the actual SD video files 
> Blu-ray compat?
> And if  LPCM has to be muxed via MP4(Box) first, a guideline is welcome?
>
> ------------------
> Some Blu-ray technical info and specifications:
> Video codec  MPEG2 - MP at ML (4:3 or 16:9), MP at HL (16:9)
> Video frame size 720×576 25 frames interlaced / 50 fields (4:3/16:9)
> Max video bitrate     40 Mbit/s
> **BD-R/RE AV SESF, Part 3 (2018):
> Video Streams:  max. 15 Mbps VBR (MP at ML) and 24 Mbps (MP at HL)
> Audio codecs LPCM 1.536 Mbps (16 bit, 2 ch), 2.304 Mbps (20, 24 bit)
> -----------------------
>
> Terje J. H



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