[FFmpeg-user] Timestamps are unset & Error writing trailer

[Mark Filipak]

I am getting only failures.

"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"

How do I "Fix your code to set the timestamps properly"?

Error writing trailer of C:\AVOut\foo.mkv: Invalid argument

"trailer"? "Invalid argument"? What's this all about?

I'm at a loss. Please help.

Regards,
Mark.


ffmpeg -analyzeduration 50000000 -probesize 50000000 -i 
"concat:VTS_01_1.VOB|VTS_01_2.VOB|VTS_01_3.VOB|VTS_01_4.VOB|VTS_01_5.VOB|VTS_01_6.VOB" -c copy -dn 
-map 0 C:\AVOut\foo.mkv

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:VTS_01_1.VOB|VTS_01_2.VOB|VTS_01_3.VOB|VTS_01_4.VOB|VTS_01_5.VOB|VTS_01_6.VOB':
   Duration: 02:09:34.53, start: 0.280633, bitrate: 5556 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], 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
     Stream #0:2[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Stream #0:3[0x81]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s
     Stream #0:4[0x82]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
     Stream #0:5[0x22]: Subtitle: dvd_subtitle
     Stream #0:6[0x21]: Subtitle: dvd_subtitle
File 'C:\AVOut\foo.mkv' already exists. Overwrite ? [y/N] Y
Output #0, matroska, to 'C:\AVOut\foo.mkv':
   Metadata:
     encoder         : Lavf58.31.104
     Stream #0:0: Video: mpeg2video (Main) (mpg2 / 0x3267706D), yuv420p(tv, top first), 720x480 [SAR 
32:27 DAR 16:9], q=2-31, 29.97 fps, 59.94 tbr, 1k tbn, 90k tbc
     Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/s
     Stream #0:2: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 384 kb/s
     Stream #0:3: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 192 kb/s
     Stream #0:4: Subtitle: dvd_subtitle ([255][255][255][255] / 0xFFFFFFFF)
     Stream #0:5: Subtitle: dvd_subtitle ([255][255][255][255] / 0xFFFFFFFF)
Stream mapping:
   Stream #0:1 -> #0:0 (copy)
   Stream #0:2 -> #0:1 (copy)
   Stream #0:3 -> #0:2 (copy)
   Stream #0:4 -> #0:3 (copy)
   Stream #0:5 -> #0:4 (copy)
   Stream #0:6 -> #0:5 (copy)
Press [q] to stop, [?] for help
[matroska @ 00000233fd2dce80] 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
[matroska @ 00000233fd2dce80] Can't write packet with unknown timestamp
av_interleaved_write_frame(): Invalid argument
[matroska @ 00000233fd2dce80] Can't write packet with unknown timestamp
Error writing trailer of C:\AVOut\foo.mkv: Invalid argument
frame=  250 fps=0.0 q=-1.0 Lsize=      21kB time=00:00:10.01 bitrate=  17.5kbits/s speed= 118x
video:6870kB audio:1222kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!