On 02/24/2020 07:29 PM, Mark Filipak wrote:
The concat protocol command at the end of this message works, but with
limits. Since the concat protocol basically works, it seems logical to
me to simply expand its capability. To that end, I now have 3 objectives.
Objective 1: Expand it to include all 4 audio streams, not just the
first 5.1 channel stream encountered (which happens to be the isolated
score).
Done.
Objective 2: Output it as an MKV, not as a TS. >
Objective 3: Include subtitles.
Regarding Objective 2: Simply specifying 'n:\output.mkv' fails
[matroska @ 0000016de19500c0] Can't write packet with unknown
timestamp
av_interleaved_write_frame(): Invalid argument
frame= 2 fps=0.0 q=-1.0 Lsize= 10kB time=00:00:00.00
bitrate=83856.0kbits/s speed=0.0594x
video:8kB audio:2kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 6.697883%
Conversion failed!
Regarding Objective 3: Though a subtitle stream is not reported, the 5
concatenated sources do have subtitles. However, I think I have to get a
matroska container working before attempting to include the subtitles,
so this objective will have to wait.
Note that from ffprobe, I can see that the video & audio stream numbers
change from one VOB to another. But ffmpeg apparently can track them
automatically -- I write that with confidence because, when I play
'output.ts', the single audio stream that gets into 'output.ts' (i.e.,
the isolated score) is constant and doesn't suddenly become dialog in
the middle.
Can anyone suggest how I can meet any of my objectives?
Warm Regards,
Mark.
>ffmpeg -i
"concat:i:\VIDEO_TS\VTS_02_1.VOB|i:\VIDEO_TS\VTS_02_2.VOB|i:\VIDEO_TS\VTS_02_3.VOB|i:\VIDEO_TS\VTS_02_4.VOB|i:\VIDEO_TS\VTS_02_5.VOB"
-c copy n:\output.ts
ffmpeg version N-94664-g0821bc4eee Copyright (c) 2000-2019 the FFmpeg
developers
built with gcc 9.1.1 (GCC) 20190807
configuration: --enable-gpl --enable-version3 --enable-sdl2
--enable-fontconfig --enable-gnutls --enable-iconv --enable-libass
--enable-libdav1d --enable-libbluray --enable-libfreetype
--enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora
--enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg
--enable-lzma --enable-zlib --enable-gmp --enable-libvidstab
--enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va
--enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
--enable-libopenmpt
libavutil 56. 33.100 / 56. 33.100
libavcodec 58. 55.101 / 58. 55.101
libavformat 58. 31.104 / 58. 31.104
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.101 / 7. 58.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, mpeg, from
'concat:i:\VIDEO_TS\VTS_02_1.VOB|i:\VIDEO_TS\VTS_02_2.VOB|i:\VIDEO_TS\VTS_02_3.VOB|i:\VIDEO_TS\VTS_02_4.VOB|i:\VIDEO_TS\VTS_02_5.VOB':
Duration: 01:43:54.21, start: 0.041500, bitrate: 6105 kb/s
Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
first), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps, 29.97
tbr, 90k tbn, 59.94 tbc
Stream #0:2[0x83]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Stream #0:3[0x82]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:4[0x81]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Stream #0:5[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Output #0, mpegts, to 'n:\output.ts':
Metadata:
encoder : Lavf58.31.104
Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, top first),
720x480 [SAR 32:27 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbr, 90k tbn, 90k
tbc
Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (copy)
Stream #0:2 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mpegts @ 0000023c737c00c0] Timestamps are unset in a packet for stream
0. This is deprecated and will stop working in the future. Fix your code
to set the timestamps properly
[mpeg @ 0000023c731a9000] New subtitle stream 0:6 at pos:116221966 and
DTS:120.328speed=12.9x
frame=159684 fps=2310 q=-1.0 Lsize= 4048589kB time=01:43:54.17
bitrate=5320.0kbits/s speed=90.2x
video:3573203kB audio:340933kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 3.435060%
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