may be try field_order as recommended here https://forum.videohelp.com/threads/396483-ffmpeg-changes-interlaced-to-progressive
? 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 / > > > > > > > -- > Cin mailing list > Cin@lists.cinelerra-gg.org > https://lists.cinelerra-gg.org/mailman/listinfo/cin >
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