вт, 13 февр. 2024 г., 05:20 Andrew Randrianasulu <[email protected]>:
> > > вт, 13 февр. 2024 г., 03:42 Terje J. Hanssen <[email protected]>: > >> >> >> Den 12.02.2024 00:07, skrev Andrew Randrianasulu: >> >> >> >> пн, 12 февр. 2024 г., 02:02 Terje J. Hanssen <[email protected]>: >> >>> >>> >>> Den 11.02.2024 04:36, skrev Terje J. Hanssen: >>> >>> >>> >>> Den 11.02.2024 00:57, skrev Andrew Randrianasulu: >>> >>> >>> >>> сб, 10 февр. 2024 г., 21:10 Terje J. Hanssen via Cin < >>> [email protected]>: >>> >>>> There are two things I want to add to my current intermediate DVD mpg >>>> video files created with ffmpeg, and/or to the DVD tree structure created >>>> with DeVeDeNG: >>>> >>>> 1. Create and add a Navigation menu in the beginning >>>> This will be an upcoming, separate topic >>>> >>>> 2. Create and add Soft Subtitles as simple text info commentaries to >>>> the video content >>>> This is the topic for this post. >>>> >>>> >>>> The reason that I want *Soft* Subtitles as a separate text file stream >>>> related to timing, is because this should be possible to *add* or >>>> import to an existing video file without the need to re-encode. It should >>>> also be flexible to display on or off during playback, if I have understood >>>> this correct so far. >>>> >>> >>> >>> IIRC you can't add text-based subtitles to DVD video. Blu-ray yes, dvd >>> no (both can use palletized reduced-color graphical subtitles) ... so at >>> least rendering text as palletized picture and then muxing it into mpeg >>> stream is unavoidable step,as far as I understand. >>> >>> >>> I have prepared a new video file and will try to add sub-titles >>> to-morrow >>> >>> http://www.g-raffa.eu/Cinelerra/HOWTO/subtitles.html#_how_to_create_soft_subtitles >>> >>> >>> >>> There are written several articles and answers to forum topics about >>> adding soft subtitles to video. >>> My best but only partly working attempt so far, is by applying this >>> solution on StackOverflow: >>> >>> >>> >>> >>> *Use ffmpeg to add text subtitles: NOTE: This solution adds the >>> subtitles to the video as a separate optional (and user-controlled) >>> subtitle track. >>> https://stackoverflow.com/questions/8672809/use-ffmpeg-to-add-text-subtitles >>> <https://stackoverflow.com/questions/8672809/use-ffmpeg-to-add-text-subtitles> >>> *1) First I created a DVD-video compliant MPG file with pcm audio from >>> DV source (as previously) >>> >>> ffmpeg -hide_banner -i DV09-1993.dv -f dvd -target pal-dvd -aspect 4:3 >>> -b:v 8M -maxrate 8M -minrate 8M -bufsize 20M -muxrate 20M -mbd rd -trellis >>> 1 -cmp 0 -subcmp 2 -c:a pcm_dvd DV09-1993.mpg >>> >>> >>> 2) Created the attached srt subtitle file: >>> >>> DVD-09-1993_subtitle.srt >>> >>> >>> >>> 3) Added (muxed) the soft, external subtitle file (2) as a separate >>> track to the mpg video file (1) >>> >>> ffmpeg -hide_banner -i DV09-1993.mpg -i DVD-09-1993_subtitle.srt -c:v >>> copy -c:a copy -c:s copy DV09-1993+srt.mpg >>> >>> [mpeg @ 0x55aac13139c0] start time for stream 0 is not set in >>> estimate_timings_from_pts >>> Input #0, mpeg, from 'DV09-1993.mpg': >>> Duration: 00:28:04.44, start: 0.540000, bitrate: 9701 kb/s >>> Stream #0:0[0x1bf]: Data: dvd_nav_packet >>> Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, >>> progressive), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k tbn >>> Side data: >>> cpb: bitrate max/min/avg: 9000000/0/0 buffer size: 1835008 >>> vbv_delay: N/A >>> Stream #0:2[0xa0]: Audio: pcm_dvd, 48000 Hz, stereo, s16, 1536 kb/s >>> Input #1, srt, from 'DVD-09-1993_subtitle.srt': >>> Duration: N/A, bitrate: N/A >>> Stream #1:0: Subtitle: subrip >>> >>> [mpeg @ 0x55aac134b140] pcm_dvd in MPEG-1 system streams is not widely >>> supported, consider using the vob or the dvd muxer to force a MPEG-2 >>> program stream. >>> Output #0, mpeg, to 'DV09-1993+srt.mpg': >>> Metadata: >>> encoder : Lavf60.16.100 >>> Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, progressive), >>> 720x576 [SAR 16:15 DAR 4:3], q=2-31, 25 fps, 25 tbr, 90k tbn >>> Side data: >>> cpb: bitrate max/min/avg: 9000000/0/0 buffer size: 1835008 >>> vbv_delay: N/A >>> Stream #0:1: Audio: pcm_dvd, 48000 Hz, stereo, s16, 1536 kb/s >>> Stream #0:2: Subtitle: subrip >>> Stream mapping: >>> Stream #0:1 -> #0:0 (copy) >>> Stream #0:2 -> #0:1 (copy) >>> Stream #1:0 -> #0:2 (copy) >>> Press [q] to stop, [?] for help >>> [out#0/mpeg @ 0x55aac134af80] video:1644910kB audio:316303kB >>> subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.561824% >>> size= 1972232kB time=00:28:04.44 bitrate=9591.6kbits/s speed= 378x >>> >>> >>> 4) Successful Playback of the final video and Audio with subtitles using >>> a "reinforced" FFplay command - also found on StackOverflow >>> https://stackoverflow.com/questions/50175075/can-ffplay-view-subtitles >>> >>> ffplay -hide_banner -vf subtitles=DVD-09-1993_subtitle.srt >>> DV09-1993+srt.mpg >>> >> >> isn't this command just uses external srt and not muxed one? >> >> >> Yes, I think you'r right, and I wondered a bit about it, but had no >> keyboard shortcut for ffplay to test switching subtitles on and off. >> >> So, afterwards I was more convinced - and fooled, when both Gnome Media >> player (Totem) and SMplayer automatically displayed the subtitles. >> But that was when the srt subtitle file had the same name as the mpg >> video file and was located in the same directory. But this worked as well >> with the first mpg file (1). >> >> The command line "vlc dvd.mpg dvd.srt" also worked with audio. Why both >> VLC and MPlayer lost the audio with the srt muxed mpg file I have no idea >> about. >> ----------------------------- >> >> From your first reply: >> >> rendering text as palletized picture and then muxing it into mpeg stream >> is unavoidable step,as far as I understand. >> But may be those DVD creation guis can do srt => dvd_sub conversion for >> you ? >> >> >> Andrey mentioned the "srt2vobsub" program, which seems to the same as >> the "srt2vob" script for DVD and "2dsub" for BD vobsub >> >> https://web.archive.org/web/20130728210155/https://code.google.com/p/srt2vob >> >> >> And from my reference to g-raffa: >> >> PRE-RENDERED SUBTITLES >> they are added (muxed) to the video stream as images with minimal >> information but can be separated (demuxed) when needed. They are used in >> DVDs and they can be turned on and off. >> Most DVD authoring applications are capable of transcoding external >> subtitles to pre-rendered subtitles and of muxing them to the video stream. >> >> >> Regarding the last sentece, this article describes the wanted solution - >> but on Linux ...? >> https://robots.net/tech/how-to-burn-dvd-with-subtitles-srt/ >> >> while another article points on Handbrake as the best solution for most >> users (?) >> https://helpdeskgeek.com/how-to/how-to-burn-a-dvd-disc-with-subtitles/ >> >> >> Re 8) above >> I also send a request to Raster soft why DeVeDeNG exits with an error >> before finishing the mpg video file and creating the iso. >> > > may be this tip from 2015 will help with devede-ng too? > > https://momentstuff.wordpress.com/2015/10/29/subtitles-with-devede/ > also be aware about non-utf8 subtitles with this method (possibly rare nowadays but still). devede-ng should have dropdown menu for selecting it. https://groups.google.com/g/devede-forum/c/2Thoie_DSXQ > > > > >> >> >> >> Input #0, mpeg, from 'DV09-1993+srt.mpg':= 0KB sq= 0B f=0/0 >>> Duration: 00:28:04.45, start: 0.540000, bitrate: 9591 kb/s >>> Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, >>> progressive), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k tbn >>> Side data: >>> cpb: bitrate max/min/avg: 9000000/0/0 buffer size: 1835008 >>> vbv_delay: N/A >>> Stream #0:1[0xa0]: Audio: pcm_dvd, 48000 Hz, stereo, s16, 1536 kb/s >>> [Parsed_subtitles_0 @ 0x7f7368464340] Shaper: FriBidi 0.19.6 (SIMPLE) >>> HarfBuzz-ng 3.4.0 (COMPLEX) >>> [Parsed_subtitles_0 @ 0x7f7368464340] Using font provider fontconfig >>> [Parsed_subtitles_0 @ 0x7f7368464340] fontselect: (Arial, 400, 0) -> >>> /usr/share/fonts/truetype/LiberationSans-Regular.ttf, 0, LiberationSans >>> 39.75 A-V: 0.002 fd= 0 aq= 190KB vq= 1222KB sq= 0B f=0/0 >>> >>> >>> 5) Playback using VLC >>> >>> - OK playback of video and subtitles when adding the subtitle file >>> - BUT: The AUDIO is lost in VLC !? >>> - Have looked into several menu items (unmute and force volume on) >>> >>> >>> Additional I wonder: >>> >>> du -sh DV*.mpg >>> >>> 2,0G DV09-1993.mpg (1) >>> 1,9G DV09-1993+srt.mpg (3) >>> >>> 6) Why is the merged (subtitled) file (3) smaller than the initial file >>> (1)? >>> Even that the srt file is very small, it should rather be opposite >>> ......... >>> >>> 7) And why the ffmpeg output (3), when the initial input mpg file (1) >>> was created using "-f dvd -target pal-dvd", which I thought was just MPEG-2 >>> and vob? >>> >>> [mpeg @ 0x55aac134b140] pcm_dvd in MPEG-1 system streams is not widely >>> supported, consider using the vob or the dvd muxer to force a MPEG-2 >>> program stream. >>> >>> >>> 8) DevedeNG got so far an error while creating the DVD iso from (3) >>> Tested the movie file in the tree structure with VLC, and also that >>> without audio..... >>> >>> >>> >>> >>> But may be those DVD creation guis can do srt => dvd_sub conversion for >>> you ? >>> >>>> >>>> 2.1 Preferably I want to add/import subtitles as fast and easy using >>>> GUI interactive tools like DeVeDeNG or VLC if possible? >>>> Next thereafter could be using the more time consuming ffmpeg >>>> >>>> https://www.baeldung.com/linux/subtitles-ffmpeg#how-to-add-soft-subtitles >>>> >>>> 2.2 So is the question if learning a special subtitle editor is >>>> necessary to create the text file easier, like one of these 5 >>>> https://www.debugpoint.com/3-great-subtitle-editors-in-linux-systems/ >>>> >>>> Tip, suggestions or experience how to do this? >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> -- >>>> Cin mailing list >>>> [email protected] >>>> https://lists.cinelerra-gg.org/mailman/listinfo/cin >>>> >>> >>> >>> >>
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