[Cin] Blu-ray compliant MPEG-2 SD video with LPCM audio
Andrew Randrianasulu
randrianasulu at gmail.com
Thu Dec 2 09:13:52 CET 2021
On Thursday, December 2, 2021, Terje J. Hanssen <terjejhanssen at gmail.com>
wrote:
>
>
> Den 01.12.2021 18:30, skrev Andrew Randrianasulu:
>
>>
>>
>> On Tuesday, November 30, 2021, Terje J. Hanssen <terjejhanssen at gmail.com
>> <mailto:terjejhanssen at gmail.com>> 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 at 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 at 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 at 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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