<br><br>On Tuesday, November 30, 2021, Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com">terjejhanssen@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Den 29.11.2021 07:18, skrev Andrew Randrianasulu:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<br>
On Monday, November 29, 2021, Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com" target="_blank">terjejhanssen@gmail.com</a> <mailto:<a href="mailto:terjejhanssen@gmail.com" target="_blank">terjejhanssen@gmail.co<wbr>m</a>>> wrote:<br>
<br>
<br>
<br>
Den 29.11.2021 02:07, skrev Andrew Randrianasulu:<br>
<br>
<br>
<br>
On Monday, November 29, 2021, Terje J. Hanssen via Cin<br>
<<a href="mailto:cin@lists.cinelerra-gg.org" target="_blank">cin@lists.cinelerra-gg.org</a><br>
<mailto:<a href="mailto:cin@lists.cinelerra-gg.org" target="_blank">cin@lists.cinelerra-gg<wbr>.org</a>><br>
<mailto:<a href="mailto:cin@lists.cinelerra-gg.org" target="_blank">cin@lists.cinelerra-gg<wbr>.org</a><br>
<mailto:<a href="mailto:cin@lists.cinelerra-gg.org" target="_blank">cin@lists.cinelerra-gg<wbr>.org</a>>>> wrote:<br>
<br>
2) SD ProRes.mov, 422 (HQ) 10-bit video with LPCM stereo<br>
audio :)<br>
<br>
<br>
Den 28.11.2021 22:48, skrev Terje J. Hanssen:<br>
<br>
The source video files I want to convert to Blu-ray<br>
compliant<br>
MPEG-2 SD video with LPCM audio are:<br>
1) DV25.dv, 720 x 576 (PAL), 50i 4:2:0 video with LPCM<br>
stereo<br>
audio<br>
and<br>
2) SD ProRes.mov, 422 (HQ) 19-bit video with LPCM<br>
stereo audio<br>
<br>
The purpose is to get better MPEG-2 quality using higher<br>
(highest) possible bitrate than for DVD video.<br>
(Yes, I have tested h.264 via Cin-GG)<br>
<br>
<br>
Here a sample ffmpeg command script found for HD video<br>
with<br>
PCM (Blu-ray not mentioned):<br>
<a href="https://gist.github.com/avoidik/153879c06afdcaad8d69b38bcc00abb7" target="_blank">https://gist.github.com/avoidi<wbr>k/153879c06afdcaad8d69b38bcc00<wbr>abb7</a><br>
<<a href="https://gist.github.com/avoidik/153879c06afdcaad8d69b38bcc00abb7" target="_blank">https://gist.github.com/avoid<wbr>ik/153879c06afdcaad8d69b38bcc0<wbr>0abb7</a>><br>
<br>
<<a href="https://gist.github.com/avoidik/153879c06afdcaad8d69b38bcc00abb7" target="_blank">https://gist.github.com/avoid<wbr>ik/153879c06afdcaad8d69b38bcc0<wbr>0abb7</a><br>
<<a href="https://gist.github.com/avoidik/153879c06afdcaad8d69b38bcc00abb7" target="_blank">https://gist.github.com/avoid<wbr>ik/153879c06afdcaad8d69b38bcc0<wbr>0abb7</a>>><br>
# with PCM 16-bit audio (uncompressed), constant video<br>
bitrate<br>
with specific bitrate tolerance<br>
<br>
ffmpeg -i "input.mp4" \<br>
-c:v mpeg2video -pix_fmt yuv422p -refs 1 -bf 2 -b:v 50M<br>
-maxrate 50M -minrate 50M \<br>
-s 1920x1080 -aspect 16:9 \<br>
-c:a pcm_s16be -f vob \<br>
"output.mpg"<br>
<br>
<br>
<br>
Andrew,<br>
<br>
Thank you for your review and suggestions. I'll put the pieces<br>
together tomorrow and start testing with em...<br>
<br>
<br>
for SD files replace '-s 1920x1080' with '-s 720x576' or omit<br>
this part {better} .<br>
<br>
<br>
Not sure how to treate 720x576 (4:3) with regards to displaying on<br>
a 16:9 Widescreen (HDTV), possibly crop the frames next to<br>
SD Wide (16:9) "These resolutions are stored anamorphically, i.e.<br>
they are stretched to the display aspect ratio by the player or<br>
display."<br>
<br>
<br>
<a href="https://superuser.com/questions/907933/correct-aspect-ratio-without-re-encoding-video-file" target="_blank">https://superuser.com/question<wbr>s/907933/correct-aspect-ratio-<wbr>without-re-encoding-video-file</a> <<a href="https://superuser.com/questions/907933/correct-aspect-ratio-without-re-encoding-video-file" target="_blank">https://superuser.com/questio<wbr>ns/907933/correct-aspect-<wbr>ratio-without-re-encoding-<wbr>video-file</a>><br>
<br>
===<br>
for MPEG-2, -aspect is useless; you need to use -bsf:v mpeg2_metadata=display_aspect_<wbr>ratio=4/3 (the only valid values are 4/3, 16/9, 221/100). Even this might not work {...}<br>
====<br>
<br>
try to experiment..<br>
<br>
<br>
<br>
'-b:v 40M -maxrate 40M -minrate 40M'. for 40 mbit/s fixed<br>
bitrate. for smaller bitrate just replace numbers.<br>
<br>
-f m2ts for mpeg2 transport stream.<br>
<br>
most likely remove -pix_fmt part.<br>
<br>
-i your file (ffmpeg hopefully will detect its type and codecs<br>
automatically)<br>
<br>
<br>
<br>
So any Mpeg2 Profile@Level is neither required as discussed here:<br>
<a href="https://forum.videohelp.com/threads/345143-mpeg2-MP-ML-with-ffmpeg#post2153378" target="_blank">https://forum.videohelp.com/th<wbr>reads/345143-mpeg2-MP-ML-with-<wbr>ffmpeg#post2153378</a><br>
<<a href="https://forum.videohelp.com/threads/345143-mpeg2-MP-ML-with-ffmpeg#post2153378" target="_blank">https://forum.videohelp.com/t<wbr>hreads/345143-mpeg2-MP-ML-with<wbr>-ffmpeg#post2153378</a>><br>
<br>
<br>
<br>
keep -c:v mpeg2video part<br>
<br>
I do not think you need mp4box for further conversion, as name<br>
suggest it mostly deals {at output end} with mp4 format, not<br>
mpeg2 transport stream (but you mentioned putting pcm in mp4,<br>
so I researched this part too)<br>
<br>
<br>
PCM and ffmpeg was also discussed here<br>
<a href="https://forum.doom9.org/showthread.php?p=1811816#post1811816" target="_blank">https://forum.doom9.org/showth<wbr>read.php?p=1811816#post1811816</a><br>
<<a href="https://forum.doom9.org/showthread.php?p=1811816#post1811816" target="_blank">https://forum.doom9.org/showt<wbr>hread.php?p=1811816#post181181<wbr>6</a>><br>
<br>
<br>
try tsmuxer (gui) next (not sure if Appimage works for you, if<br>
not try their linux build from their github - tags - assets<br>
(there you need to expand 'assets' arrow/triangle to see<br>
various binary and source archives).<br>
<br>
<br>
<br>
Yep, tsMuxer still launches fine from my Appimage installation.<br>
I'll have a look at it later....<br>
<br>
</blockquote>
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<br>
I've tried four ffmpeg tests, 1) -4) below with .m2ts and .mp4 containers<br>
I used data rate 25M (comparable with the source dv 25 mbps, compression 5:1)<br>
-f m2ts not accepted as format<br>
would not copy lpcm audio into any new streams<br>
VLC playback the video files OK - without audio<br>
<br>
Comments and new suggestions welcome ;)</blockquote><div><br></div><div><br></div><div>so yeah, it seems '-f mpegts' is way to go. does sound appear if you replace</div><div> -c:a pcm_s16be with pcm_s16le? </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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===================<br>
<br>
du -sh dv28*<br>
<br>
470M dv28.dv (the source input file)<br>
452M dv28.m2ts<br>
443M dv28.mkv<br>
443M dv28.mp4<br>
443M dv28.mts<br>
<br>
<br>
ffmpeg -i dv28.dv 2>&1 >/dev/null | egrep "Video|Audio"<br>
Stream #0:0: Video: dvvideo, yuv420p, 720x576 [SAR 16:15 DAR 4:3], 25000 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc<br>
Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s<br>
<br>
1)<br>
ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M -minrate 25M -s 720x756 -c:a pcm_s16be -f m2ts dv28.m2ts<br>
<br>
[NULL @ 0x557007bcd900]<br>
Requested output format 'm2ts' is not a suitable output format dv28.m2ts: Invalid argument<br>
<br>
2)<br>
ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M -minrate 25M -s 720x756 -c:a pcm_s16be -f m2ts dv28.mp4<br>
<br>
[NULL @ 0x55f3112e3900]<br>
Requested output format 'm2ts' is not a suitable output format dv28.mp4: Invalid argument<br>
<br>
3)<br>
ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M -minrate 25M -s 720x756 -c:a pcm_s16be -f mpegts dv28.m2ts<br>
<br>
[mpeg2video @ 0x55bc49d1c040]<br>
Automatically choosing VBV buffer size of 372 kbyte<br>
[mpegts @ 0x55bc49d1a900]<br>
Stream 1, codec pcm_s16be, is muxed as a private data stream and may not be recognized upon reading.<br>
<br>
ffmpeg -i dv28.m2ts 2>&1 >/dev/null | egrep "Video|Audio"<br>
Stream #0:0[0x1011]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, progressive), 720x756 [SAR 7:5 DAR 4:3], 25000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc<br>
<br>
4)<br>
ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M -minrate 25M -s 720x756 -c:a pcm_s16be -f mpegts dv28.mp4<br>
<br>
mpeg2video @ 0x56173fa7e040]<br>
Automatically choosing VBV buffer size of 372 kbyte<br>
[mpegts @ 0x56173fa7c900]<br>
Stream 1, codec pcm_s16be, is muxed as a private data stream and may not be recognized upon reading.<br>
<br>
ffmpeg -i dv28.mp4 2>&1 >/dev/null | egrep "Video|Audio"<br>
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, progressive), 720x756 [SAR 7:5 DAR 4:3], 25000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc<br>
<br>
================<br>
<br>
Terje J. H<br>
<br>
<br>
<br>
</blockquote>