#546 DVDStyler loses subtitles from .VOBs

[tiun]

DVDStyler 2.6rc2 and 2.5.2

If a .VOB with subtitles is used as a source video file, this subtitles will be transferred to the final DVD only if "do not remultiplex" check mark is set.

If this check mark is not set then either DVD without subtitles will be created, or DVD will not be produced at all - depending on "Use mplex" check box state.

[tiun]

I tested the issue a bit more:

My source .VOB contains 1 video stream, 1 audio stream and 1 subtitle stream.
When both "do not remultiplex" and "Use mplex" check box are cleared, DVDStyler launches:

ffmpeg -i "...\source_vob" -f dvd -c✌️0 copy -b:a 192000 -ar 48000 -c🅰️0 copy -c:s:0 copy -map 0:v -map 0:a "...\dvd-cache\entry001.vob"

and loses all subtitles:

Input #0, mpeg, from '...\source_vob':
Duration: 00:03:53.95, start: 0.287267, bitrate: 5530 kb/s
Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], max. 8500 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:2[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Stream #0:3[0x21]: Subtitle: dvd_subtitle
Output #0, dvd, to '...\dvd-cache\entry001.vob':
Metadata:
encoder : Lavf55.14.102
Stream #0:0: Video: mpeg2video, yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, max. 8500 kb/s, 25 fps, 90k tbn, 25 tbc
Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), 192 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (copy)
Stream #0:2 -> #0:1 (copy)

because of missing "-map 0:s" parameter.

When "Use mplex" check mark is set, DVDStyler launches:

ffmpeg -i "...\source_vob" -f mpeg2video -c✌️0 copy -b:a 192000 -ar 48000 -map 0:1 "...\dvd-cache\entry001.vob.m2v" -f s16be -b:a 192000 -ar 48000 -c🅰️0 copy -map 0:0 "...\dvd-cache\entry001.vob.audio0"

and FFmpeg fails because of wrong mapping of an audio stream:

Input #0, mpeg, from 'V:\VIDEO_TS\bbb\VTS_01_1.VOB':
Duration: 00:03:53.95, start: 0.287267, bitrate: 5530 kb/s
Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], max. 8500 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:2[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Stream #0:3[0x21]: Subtitle: dvd_subtitle

Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (...\dvd-cache\entry001.vob.m2v) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.

Data stream encoding not supported yet (only streamcopy)

[NtAlex]

Fixed in DVDStyler 2.6.
Please test

[tiun]

Result is still negative:

1. Without "Use mplex":
   a) "-map -0:s:0" has added instead of "-map 0:s:0"
   b) "-c:s:0 copy" parameter now is missed
   so no subtitles in the FFmpeg's output.
   (If I manually launch FFmpeg with both "-c:s:0 copy" and "-map 0:s:0" - it produces .VOB with subtitles)

2. With "Use mplex" for my testcase:

   Input #0, mpeg, from '...\VTS_01_1.VOB':
   Duration: 00:03:53.95, start: 0.287267, bitrate: 5530 kb/s
   Stream #0:0[0x1bf]: Data: dvd_nav_packet
   Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], max. 8500 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
   Stream #0:2[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
   Stream #0:3[0x21]: Subtitle: dvd_subtitle

the same wrong stream number is used: "-map 0:0 "\dvd-tmp\dvd-cache\entry001.vob.audio0"