пт, 9 дек. 2022 г., 04:27 Terje J. Hanssen <terjejhanssen@gmail.com>:
Den 09.12.2022 01:41, skrev Andrew Randrianasulu:
пт, 9 дек. 2022 г., 03:36 Terje J. Hanssen <terjejhanssen@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@gmail.com>:
Den 07.12.2022 22:40, skrev Andrew Randrianasulu:
чт, 8 дек. 2022 г., 00:36 Terje J. Hanssen <terjejhanssen@gmail.com>:
Den 07.12.2022 00:13, skrev Andrew Randrianasulu:
may be try field_order as recommended here
?
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@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@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@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@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@localhost:/run/media/terje/Seagate_4TB_back/data/Video-test/SD_Blu-ray>
terje@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@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 /
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