[Cin] Blu-ray compliant MPEG-2 SD video - 2022 mod
Andrew Randrianasulu
randrianasulu at gmail.com
Fri Dec 9 02:32:14 CET 2022
пт, 9 дек. 2022 г., 04:27 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
> Den 09.12.2022 01:41, skrev Andrew Randrianasulu:
>
>
>
> пт, 9 дек. 2022 г., 03:36 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>>
>>
>> Den 08.12.2022 01:26, skrev Terje J. Hanssen:
>>
>>
>>
>> Den 08.12.2022 00:54, skrev Andrew Randrianasulu:
>>
>>
>>
>> чт, 8 дек. 2022 г., 02:50 Terje J. Hanssen <terjejhanssen at gmail.com>:
>>
>>>
>>> Den 07.12.2022 22:40, skrev Andrew Randrianasulu:
>>>
>>>
>>>
>>> чт, 8 дек. 2022 г., 00:36 Terje J. Hanssen <terjejhanssen at gmail.com>:
>>>
>>>>
>>>>
>>>> Den 07.12.2022 00:13, skrev Andrew Randrianasulu:
>>>>
>>>> may be try field_order as recommended here
>>>>
>>>>
>>>> https://forum.videohelp.com/threads/396483-ffmpeg-changes-interlaced-to-progressive
>>>>
>>>> ?
>>>>
>>>>
>>>> I tried to add '-field_order bb'
>>>>
>>>> ffmpeg -i dv28.dv -c:v mpeg2video -c:a copy -mpegts_m2ts_mode 1
>>>> -field_order bb dv28-mpeg2-SD-bluray.mts
>>>> ...........
>>>> Stream #0:0: Video: mpeg2video (Main), yuv420p(bottom first), 720x576
>>>> [SAR 16:15 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 90k tbn
>>>> Metadata:
>>>> encoder : Lavc59.37.100 mpeg2video
>>>> Side data:
>>>> cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
>>>> Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>>>>
>>>> [mpegts @ 0x564149f05bc0] Stream 1, codec pcm_s16le, is muxed as a
>>>> private data stream and may not be recognized upon reading.
>>>> ...............
>>>>
>>>>
>>>> I tried also the other -field_order values according to the ffmpeg
>>>> manual: 'tt', 'tb', 'bt'
>>>> but all changed the input DV interlaced videdo to Scan type Progressive
>>>> MPEG-2 output video, as in first post below.
>>>>
>>>
>>>
>>> there also some other suggestions, like -top 1 (tff?) and/or two i*
>>> flags (interlaced dct, motion estimation)
>>>
>>> you can also try to set -profile to some dvd variant may be it will be
>>> smart enough to at least add all flags correctly ....
>>>
>>>
>>>
>>> I tried '-flags +ilme+ildct' and got the output video kept interlaced BFF
>>> The Bit rate parameters are just copied from the 2021 command line. Not
>>> sure what -refs 1 -bf 2 and -dc 10 do (?)
>>> '-c:a copy -mpegts_m2ts_mode 1' doesn't help here with regards to LPCM,
>>> which disappear in a private stream!?
>>>
>>
>>
>>
>> do not do c:a copy, try same bluray pcm or ac3 with high bitrate ....
>>
>>
>>
>>
>> Thank you, pcm_bluray worked better. I thought LPCM from DV now was
>> equivalent to and accepted muxed with ffmpeg.mts
>> I can hear the audio with VLC, and will try bdwrie to udffs and burn it
>> to disc to-morrow.
>>
>>
>> Latest code line
>> ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M
>> -minrate 25M -bufsize 45M -muxrate 45M -dc 10 -c:a pcm_bluray
>> -mpegts_m2ts_mode 1 -flags +ilme+ildct dv28-mpeg2-SD-bluray.mts
>>
>>
>
> may be change bufsize and muxrate down to 25M too ?
>
>
>
> I tried tests with each and both set down to 25M and got the file size
> shrinked to 456M
> But at the same time a lot of invalid messages arrived from ffmpeg
>
> encoder : Lavc59.37.100 pcm_bluray
> [mpegts @ 0x55bec4e8a040] dts < pcr, TS is invalid00:05.00
> bitrate=24327.0kbits/s speed=9.81x
>
> Last message repeated 30 times
> ...........snip
> [mpegts @ 0x55bec4e8a040] dts < pcr, TS is invalid02:05.28
> bitrate=27871.6kbits/s speed=6.59x
> Last message repeated 378 times
> [mpegts @ 0x55bec4e8a040] dts < pcr, TS is invalid02:12.44
> bitrate=27869.1kbits/s speed=6.79x
> Last message repeated 247 times
>
>
> I seem to remember there were similar (overrun?) messages earlier for the
> dvd/vob video, before we tuned up bufsize and muxrate .....
>
so, try to up them a bit in say 1M step ... hopefully at ~27M they will
disappear, looking at log above ... 25 M video bitrate + ~1.5 M audio
should be around 26.5M muxrate .....
>
>
>
>
>
>
>
>
>>
>> ffmpeg -i dv28-mpeg2-SD-bluray.mts 2>&1 >/dev/null | egrep "Video|Audio"
>> Stream #0:0[0x1011]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
>> yuv420p(tv, bottom first), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k
>> tbn
>> Stream #0:1[0x1100]: Audio: pcm_bluray ([128][0][0][0] / 0x0080), 48000
>> Hz, stereo, s16, 1536 kb/s
>>
>>
>>
>> Yes, I got the dv28-mpeg2-SD-bluray.mts file written to udfs with bdwrite
>> and burned with K3b to a BD-RE disc. The SD Blu-ray disc was also
>> auto-playable in the Blu-ray hardare player.
>>
>> But look at the file-sizes, where the latest mts file is 749M, that is
>> 60-70% bigger than the DV source and the previous generated iso, m2ts and
>> mpg files.
>>
>> 457M dv28_25mbps.iso
>> 455M dv28_25mbps.m2ts
>> 437M dv28_25mbps.mpg
>> 458M dv28_Blu-ray.iso
>> 470M dv28.dv
>> ----------------------
>> 749M dv28-mpeg2-SD-bluray.mts
>>
>>
>> Is there any difference in the bit rate syntax or other in the ffmpeg
>> code line that causes the video data rate to be much bigger?
>>
>>
>> Here is diff between the most relevant output from mediainfo for two of
>> the written SD Blu-ray video files:
>>
>> diff <(mediainfo dv28-mpeg2-SD-bluray.mts | egrep 'Format|Scan|Bit|size')
>> <(mediainfo dv28_25mbps.iso | egrep 'Format|Scan|Bit|size')
>>
>> 1,3c1,3
>> < Format : BDAV
>> < Format/Info : Blu-ray Video
>> < File size : 749 MiB
>> ---
>> > Format : MPEG Video
>> > Format version : Version 2
>> > File size : 457 MiB
>> 11d10
>> < Format settings, picture structure : Frame
>> 13c12
>> < Bit rate : 42.6 Mb/s
>> ---
>> > Bit rate : 28.0 Mb/s
>> 15,25c14,16
>> < Scan type : Interlaced
>> < Scan order : Bottom Field First
>> < Bits/(Pixel*Frame) : 4.108
>> < Stream size : 694 MiB (93%)
>> < Format : PCM
>> < Format settings : Big / Signed
>> < Bit rate mode : Constant
>> < Bit rate : 1 536 kb/s
>> < Bit depth : 16 bits
>> < Stream size : 25.0 MiB (3%)
>> < Format : MPEG Video / PCM
>> ---
>> > Scan type : Progressive
>> > Bits/(Pixel*Frame) : 2.703
>> > Stream size : 457 MiB (100%)
>>
>> -----------------
>>
>>
>>
>>
>>
>>>
>>>
>>> ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M
>>> -minrate 25M -bufsize 45M -muxrate 45M -dc 10 -c:a copy -mpegts_m2ts_mode
>>> 1 -flags +ilme+ildct dv28-mpeg2-SD-bluray.mts
>>> ................
>>> Stream #0:0: Video: mpeg2video (Main), yuv420p(bottom coded first
>>> (swapped)), 720x576 [SAR 16:15 DAR 4:3], q=2-31, 25000 kb/s, 25 fps, 90k tbn
>>> Metadata:
>>> encoder : Lavc59.37.100 mpeg2video
>>> Side data:
>>> cpb: bitrate max/min/avg: 25000000/25000000/25000000 buffer size:
>>> 45000000 vbv_delay: N/A
>>> Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>>> [mpegts @ 0x560287e48040] Stream 1, codec pcm_s16le, is muxed as a
>>> private data stream and may not be recognized upon reading.
>>> frame= 3416 fps=373 q=1.6 Lsize= 766566kB time=00:02:16.64
>>> bitrate=45958.1kbits/s speed=14.9x
>>> video:415619kB audio:25620kB subtitle:0kB other streams:0kB global
>>> headers:0kB muxing overhead: 73.730377%
>>>
>>>
>>> mediainfo dv28-mpeg2-SD-bluray.mts | egrep 'Format|Scan|Width|Height|Bit'
>>> Format : BDAV
>>> Format/Info : Blu-ray Video
>>> Format : MPEG Video
>>> Format version : Version 2
>>> Format profile : Main at Main
>>> Format settings : BVOP
>>> Format settings, BVOP : Yes
>>> Format settings, Matrix : Default
>>> Format settings, GOP : M=3, N=12
>>> Format settings, picture structure : Frame
>>> Bit rate mode : Variable
>>> Bit rate : 44.1 Mb/s
>>> Width : 720 pixels
>>> Height : 576 pixels
>>> Bit depth : 8 bits
>>> Scan type : Interlaced
>>> Scan order : Bottom Field First
>>> Bits/(Pixel*Frame) : 4.256
>>> Format : MPEG Video /
>>>
>>>
>>>
>>>>
>>>>
>>>> A side notes;
>>>> 1080i HDV (scan order tff) copied to Blu-ray MPEG-2 did work interlaced.
>>>>
>>>> According to wikipedia the supported SD formats on Blu-ray video are
>>>> interlaced 720×576 25i and 720×480 29.97i, 4:3 or 16:9
>>>> Yet, the SD VOB (dvd) progressive mpeg-2 video I encoded to BD, did
>>>> playback in my Blu-ray hardware player.
>>>>
>>>>
>>>>
>>>>
>>>> ср, 7 дек. 2022 г., 01:53 Terje J. Hanssen via Cin <
>>>> cin at lists.cinelerra-gg.org>:
>>>>
>>>>> With HDV 'in the Blu-ray box' I would like to test if it possible to
>>>>> use
>>>>> equivalent procedures for DV to SD-Blu-ray video.
>>>>>
>>>>> That is continue as an alternative to the 2021 thread here:
>>>>> https://lists.cinelerra-gg.org/pipermail/cin/2021-December/004268.html
>>>>>
>>>>> Blu-ray compliant MPEG-2 SD video with LPCM audio
>>>>> -------------------------------------------------
>>>>>
>>>>> 1) Encode DV to MPEG-2 video and copy PCM audio as is to a VOB/MPG
>>>>> format:
>>>>>
>>>>> ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M
>>>>> -minrate 25M -bufsize 45M -muxrate 45M -dc 10 -c:a pcm_s16be -f vob
>>>>> dv28_25mbps.mpg
>>>>>
>>>>> 2) tsMuxer
>>>>> As FFMpeg (then) would not allow to mux PCM or remux MPG to M2TS, I
>>>>> tested tsMuxer,
>>>>> see the attached screenshot: tsMuxer_SD_M2TS
>>>>> Input file: dv28_25mbps.mpg
>>>>> Tracs: MPEG-2 video stream and LPCM audio stream
>>>>> Output: dv28_25mbps.iso
>>>>>
>>>>> ------------------------
>>>>>
>>>>> Using Mediainfo to compare the source dv28.dv ffmpeg input file with
>>>>> its
>>>>> output file dv28_25mbps.mpg (intermediate) and with the resulting
>>>>> dv28_25mbps.iso, show that the interlaced dv video was changed to
>>>>> progressive VOB/BVOB dvd video.
>>>>>
>>>>> > mediainfo dv28.dv | egrep 'Format|Scan|Width|Height|Bit'
>>>>> Format : DV
>>>>> Format : DV
>>>>> Bit rate mode : Constant
>>>>> Bit rate : 24.4 Mb/s
>>>>> Width : 720 pixels
>>>>> Height : 576 pixels
>>>>> Bit depth : 8 bits
>>>>> Scan type : Interlaced
>>>>> Scan order : Bottom Field First
>>>>> Bits/(Pixel*Frame) : 2.357
>>>>> Format : PCM
>>>>> Format settings : Big / Signed
>>>>> Bit rate mode : Constant
>>>>> Bit rate : 1 536 kb/s
>>>>> Bit depth : 16 bits
>>>>>
>>>>> > mediainfo dv28_25mbps.mpg | egrep 'Format|Scan|Width|Height|Bit'
>>>>> Format : MPEG-PS
>>>>> Format : MPEG Video
>>>>> Format version : Version 2
>>>>> Format profile : Main at Main
>>>>> Format settings : BVOP
>>>>> Format settings, BVOP : Yes
>>>>> Format settings, Matrix : Default
>>>>> Format settings, GOP : M=3, N=12
>>>>> Bit rate mode : Variable
>>>>> Bit rate : 24.7 Mb/s
>>>>> Width : 720 pixels
>>>>> Height : 576 pixels
>>>>> Bit depth : 8 bits
>>>>> Scan type : Progressive
>>>>> Bits/(Pixel*Frame) : 2.384
>>>>> Format : PCM
>>>>> Format settings : Big / Signed
>>>>> Bit rate mode : Constant
>>>>> Bit rate : 1 536 kb/s
>>>>> Bit depth : 16 bits
>>>>>
>>>>> > mediainfo dv28_25mbps.iso | egrep 'Format|Scan|Width|Height|Bit'
>>>>> Format : MPEG Video
>>>>> Format version : Version 2
>>>>> Format : MPEG Video
>>>>> Format version : Version 2
>>>>> Format profile : Main at Main
>>>>> Format settings : BVOP
>>>>> Format settings, BVOP : Yes
>>>>> Format settings, Matrix : Default
>>>>> Format settings, GOP : M=3, N=12
>>>>> Bit rate mode : Variable
>>>>> Bit rate : 28.0 Mb/s
>>>>> Width : 720 pixels
>>>>> Height : 576 pixels
>>>>> Bit depth : 8 bits
>>>>> Scan type : Progressive
>>>>> Bits/(Pixel*Frame) : 2.703
>>>>>
>>>>> -----------------------------------
>>>>>
>>>>> That is, suggestion how to merge/customize the newer ffmpeg HDV to
>>>>> Blu-ray procedure
>>>>> ffmpeg -i hdv.m2t -c:v copy -c:a pcm_bluray -mpegts_m2ts_mode 1
>>>>> output.mts
>>>>>
>>>>> for SD-DV to keep it interlaced and get dv28_25mbps.m2ts muxed
>>>>> directly?
>>>>>
>>>>> ------------------
>>>>>
>>>>> I did a first try with the following line, without taking care of
>>>>> 25mbps, but got lost the pcm audio to a privat stream (change mode?).
>>>>> Additional the vido is not kept interlaced.
>>>>>
>>>>>
>>>>> ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
>>>>> built with gcc 12 (SUSE Linux)
>>>>> ..........snip
>>>>> [dv @ 0x55b59acfeb80] Estimating duration from bitrate, this may be
>>>>> inaccurate
>>>>> Input #0, dv, from 'dv28.dv':
>>>>> Metadata:
>>>>> timecode : 00:00:00:00
>>>>> Duration: 00:02:16.64, start: 0.000000, bitrate: 28800 kb/s
>>>>> Stream #0:0: Video: dvvideo, yuv420p, 720x576 [SAR 16:15 DAR 4:3],
>>>>> 25000 kb/s, 25 fps, 25 tbr, 25 tbn
>>>>> Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>>>>> Stream mapping:
>>>>> Stream #0:0 -> #0:0 (dvvideo (native) -> mpeg2video (native))
>>>>> Stream #0:1 -> #0:1 (copy)
>>>>> Press [q] to stop, [?] for help
>>>>> Output #0, mpegts, to 'dv28-mpeg2-SD-bluray.mts':
>>>>> Metadata:
>>>>> timecode : 00:00:00:00
>>>>> encoder : Lavf59.27.100
>>>>> Stream #0:0: Video: mpeg2video (Main), yuv420p(bottom coded first
>>>>> (swapped)), 720x576 [SAR 16:15 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 90k
>>>>> tbn
>>>>> Metadata:
>>>>> encoder : Lavc59.37.100 mpeg2video
>>>>> Side data:
>>>>> cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay:
>>>>> N/A
>>>>> Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>>>>> [mpegts @ 0x55b59ad3dd40] Stream 1, codec pcm_s16le, is muxed as a
>>>>> private data stream and may not be recognized upon reading.
>>>>> frame= 3416 fps=586 q=31.0 Lsize= 39336kB time=00:02:16.64
>>>>> bitrate=2358.3kbits/s speed=23.4x
>>>>> video:11070kB audio:25620kB subtitle:0kB other streams:0kB global
>>>>> headers:0kB muxing overhead: 7.211923%
>>>>> terje at localhost:/run/media/terje/Seagate_4TB_back/data/Video-test/SD_Blu-ray>
>>>>>
>>>>>
>>>>> terje at localhost:/run/media/terje/Seagate_4TB_back/data/Video-test/SD_Blu-ray>
>>>>>
>>>>> ffmpeg -i dv28-mpeg2-SD-bluray.mts 2>&1 >/dev/null | egrep
>>>>> "Video|Audio"
>>>>> Stream #0:0[0x1011]: Video: mpeg2video (Main) ([2][0][0][0] /
>>>>> 0x0002), yuv420p(tv, progressive), 720x576 [SAR 16:15 DAR 4:3], 25
>>>>> fps,
>>>>> 25 tbr, 90k tbn
>>>>>
>>>>>
>>>>> mediainfo dv28-mpeg2-SD-bluray.mts | egrep
>>>>> 'Format|Scan|Width|Height|Bit'
>>>>> Format : BDAV
>>>>> Format/Info : Blu-ray Video
>>>>> Format : MPEG Video
>>>>> Format version : Version 2
>>>>> Format profile : Main at Main
>>>>> Format settings, BVOP : No
>>>>> Format settings, Matrix : Default
>>>>> Format settings, GOP : Variable
>>>>> Bit rate mode : Variable
>>>>> Bit rate : 2 257 kb/s
>>>>> Width : 720 pixels
>>>>> Height : 576 pixels
>>>>> Bit depth : 8 bits
>>>>> Scan type : Progressive
>>>>> Bits/(Pixel*Frame) : 0.218
>>>>> Format : MPEG Video /
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Cin mailing list
>>>>> Cin at lists.cinelerra-gg.org
>>>>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>>>>
>>>>
>>>>
>>
>>
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