On Thursday, December 2, 2021, Terje J. Hanssen <[email protected]> wrote:
> > > Den 01.12.2021 18:30, skrev Andrew Randrianasulu: > >> >> >> On Tuesday, November 30, 2021, Terje J. Hanssen <[email protected] >> <mailto:[email protected]>> wrote: >> >> Tested the original sample script with minimal changes. A lot of >> buffer underflow messages, but the PCM audio stream was muxed and >> worked in VLC: >> >> ffmpeg -i dv28.dv -c:v mpeg2video -pix_fmt yuv422p -refs 1 -bf 2 >> -b:v 25M -maxrate 25M -minrate 25M -s 720x576 -aspect 4:3 -c:a >> pcm_s16be -f vob dv28.mpg >> >> [vob @ 0x562322bbb6c0] packet too large, ignoring buffer limits to >> mux it >> [vob @ 0x562322bbb6c0] buffer underflow st=1 bufi=6876 size=7680 >> frame= 3416 fps=374 q=2.2 Lsize= 448010kB time=00:02:16.60 >> bitrate=26867.5kbits/s speed= 15x >> video:416900kB audio:25620kB subtitle:0kB other streams:0kB global >> headers:0kB muxing overhead: 1.240520% >> >> >> ffmpeg -i dv28.mpg 2>&1 >/dev/null | egrep "Video|Audio" >> Stream #0:0[0x1e0]: Video: mpeg2video (4:2:2), yuv422p(tv, >> progressive), 720x576 [SAR 16:15 DAR 4:3], 25000 kb/s, 25 fps, 25 >> tbr, 90k tbn, 50 tbc >> Stream #0:1[0xa0]: Audio: pcm_dvd, 48000 Hz, stereo, s16, 1536 kb/s >> >> >> mediainfo dv28.mpg | grep Format >> Format : MPEG-PS >> Format : MPEG Video >> Format version : Version 2 >> Format profile : 4:2:2@Main >> Format settings : BVOP >> Format settings, BVOP : Yes >> Format settings, Matrix : Default >> Format settings, GOP : M=3, N=12 >> Format : PCM >> Format settings : Big / Signed >> >> >> there is also -muxrate and -bufsize options.. >> https://stackoverflow.com/questions/44392689/ffmpeg-vbr-cbr- >> conversion-and-streaming-of-mpeg-2-ts-video-files < >> https://stackoverflow.com/questions/44392689/ffmpeg-vbr-cbr >> -conversion-and-streaming-of-mpeg-2-ts-video-files> >> >> try bufsize = muxrate = much bigger (1.8x?) than min/maxrate... >> >> ffmpeg exposes a lot of knobs... >> >> you also can try '-dc 9' 10 or 11 for higher-precision in some mpeg2 >> math.. >> >> =========== > > ffmpeg -i dv28.dv -c:v mpeg2video -pix_fmt yuv422p -refs 1 -bf 2 -b:v 25M > -maxrate 25M -minrate 25M -bufsize 45M -muxrate 45M -dc 10 -s 720x576 > -aspect 4:3 -c:a pcm_s16be -f vob dv28.mpg > > Still a lot of ouput messages (some hundreds), tested -bufsize 45M > -muxrate 45M (and 50M without change): > [vob @ 0x557560237700] packet too large, ignoring buffer limits to mux it > [vob @ 0x557560237700] buffer underflow st=1 bufi=6892 size=7680 > ........... and lastly > frame= 3416 fps=359 q=1.6 Lsize= 446718kB time=00:02:16.60 > bitrate=26790.0kbits/s speed=14.4x > video:415625kB audio:25620kB subtitle:0kB other streams:0kB global > headers:0kB muxing overhead: 1.240393% > > ----------- > > The format setting "-f vob" in the original script, was maybe the trick > that got ffmpeg to "mux" PCM audio into the mpg container, and not to other > I tried(?) > > VOB is usual the DVD-video container where video has max bitrate 9.8 Mbps. > I could find again if Blu-ray specification allows "VOB-video" or > MPG-video here with high bitrate 25M? > > ============= > > tsMuxer > As FFMpeg would allow to mux PCM or remux MPG to M2TS, I tested tsMuxer, > see the attached screenshot: tsMuxer_SD_M2TS > Input file: dv28.mpg > Tracs: MPEG-2 video stream and LPCM audio stream > Output: M2TS muxing worked, Blu-ray ISO and Blu-ray Folder (tested as > working fast and easy) > > > ffmpeg -i dv28.m2ts 2>&1 >/dev/null | egrep "Video|Audio" > Stream #0:0[0x1011]: Video: mpeg2video (4:2:2) (HDMV / 0x564D4448), > yuv422p(tv, progressive), 720x576 [SAR 16:15 DAR 4:3], 25000 kb/s, 25 fps, > 25 tbr, 90k tbn, 50 tbc > Stream #0:1[0x1100]: Audio: pcm_bluray (HDMV / 0x564D4448), 48000 Hz, > stereo, s16, 1536 kb/s > > ffmpeg -i dv28_Blu-ray.iso 2>&1 >/dev/null | egrep "Video|Audio" > Stream #0:0[0x1011]: Video: mpeg2video (4:2:2) (HDMV / 0x564D4448), > yuv422p(tv, progressive), 720x576 [SAR 16:15 DAR 4:3], 25000 kb/s, 25 fps, > 25 tbr, 90k tbn, 50 tbc > Stream #0:1[0x1100]: Audio: pcm_bluray (HDMV / 0x564D4448), 48000 Hz, > stereo, s16, 1536 kb/s > > > mediainfo dv28.m2ts | grep Format > Format : BDAV > Format/Info : Blu-ray Video > Format : MPEG Video > Format version : Version 2 > Format profile : 4:2:2@Main > Format settings : BVOP > Format settings, BVOP : Yes > Format settings, Matrix : Default > Format settings, GOP : M=3, N=12 > Format : PCM > Format settings : Big / Signed > > > mediainfo dv28_Blu-ray.iso | grep Format > Format : MPEG Video > Format version : Version 2 > Format : MPEG Video > Format version : Version 2 > Format profile : 4:2:2@Main > Format settings : BVOP > Format settings, BVOP : Yes > Format settings, Matrix : Default > Format settings, GOP : M=3, N=12 > > > tree -h BDMV > BDMV > ├── [4.0K] AUXDATA > ├── [4.0K] BACKUP > │ ├── [4.0K] BDJO > │ ├── [4.0K] CLIPINF > │ │ └── [1.8K] 00000.clpi > │ ├── [ 120] index.bdmv > │ ├── [ 290] MovieObject.bdmv > │ └── [4.0K] PLAYLIST > │ └── [ 170] 00000.mpls > ├── [4.0K] BDJO > ├── [4.0K] CLIPINF > │ └── [1.8K] 00000.clpi > ├── [ 120] index.bdmv > ├── [4.0K] JAR > ├── [4.0K] META > ├── [ 290] MovieObject.bdmv > ├── [4.0K] PLAYLIST > │ └── [ 170] 00000.mpls > └── [4.0K] STREAM > └── [456M] 00000.m2ts > > 11 directories, 9 files > > =========== > > for minimising disk loss you probably can prep. few samples with different >> encoding/muxing params and burn them all on one disk and see how well/bad >> your hw player plays (and seeks) them.. >> >> Good idea. > I tried to burn dv28_Blu-ray.iso to a DVD-R disc with the gui burners > Brasero and K3b, but both quitted at start with Failure. did they show detailed error message? > Suggestion to how customize the previous "CL for HDV to Blu-ray" to burn > the now ready made dv28_Blu-ray.iso (with udf included?) > and also the BDMV and CERTIFICATE folders to DVD-R/DVD+R and DVD+RW discs? try growisofs line from manual with this file? also what "file' and udfinfo/bdinfo says about this iso? For trying to burn just as data disk - try to drag those folders into k3d and do not forgot to check udf option somewhere (it probably will create hybrid iso/udf 1 fs - not sure if such disk will be seen as avchd by playe.. but worth trying at least once) > > ======== > > Terje J. H > > > >
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