The command line below creates 'foo.txt' but the file is empty (i.e.,
zero length).
Any clues why?
Thanks,
Mark
C:\CMD & tiny apps\ffmpeg>ffmpeg -i G:\VIDEO_TS\VTS_02_2.VOB -vf
metadata=mode=print:file=foo.txt -f rawvideo -y NUL
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
[mpeg2video @ 000001b88fa7a240] Invalid frame dimensions 0x0.
Last message repeated 2 times
Input #0, mpeg, from 'G:\VIDEO_TS\VTS_02_2.VOB':
Duration: 00:24:02.08, start: 1159.049500, bitrate: 5956 kb/s
Stream #0:0[0x81]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
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[0x82]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:3[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:4[0x83]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
Stream #0:5[0x1bf]: Data: dvd_nav_packet
Stream mapping:
Stream #0:1 -> #0:0 (mpeg2video (native) -> rawvideo (native))
Press [q] to stop, [?] for help
Output #0, rawvideo, to 'NUL':
Metadata:
encoder : Lavf58.31.104
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 32:27 DAR 16:9], q=2-31, 124291 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
Metadata:
encoder : Lavc58.55.101 rawvideo
[mpeg @ 000001b88fa79000] New subtitle stream 0:6 at pos:5988366 and
DTS:1166.24s
More than 1000 frames duplicated= 9974528kB time=00:10:57.42
bitrate=124290.3kbits/s dup=884 drop=0 speed=62.5x
[mpeg2video @ 000001b88fad6c00] ac-tex damaged at 12 1640.35
bitrate=124290.4kbits/s dup=5326 drop=0 speed=69.2x
[mpeg2video @ 000001b88fad6c00] Warning MVs not available
[mpeg2video @ 000001b88fad6c00] concealing 630 DC, 630 AC, 630 MV errors
in B frame
G:\VIDEO_TS\VTS_02_2.VOB: corrupt decoded frame in stream 1
frame=43213 fps=2080 q=-0.0 Lsize=21876581kB time=00:24:01.87
bitrate=124291.7kbits/s dup=5455 drop=0 speed=69.4x
video:21876581kB audio:0kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 0.000000%
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