[FFmpeg-user] Errors in swscaler or broken video

WR wolle321 at freenet.de
Thu May 13 18:23:04 EEST 2021


Am 12.05.21 um 22:00 schrieb Carl Eugen Hoyos:
> Am Mi., 12. Mai 2021 um 08:39 Uhr schrieb WR <wolle321 at freenet.de>:
> 
>> Maybe, there is a way, to scale the subtitles in that way, that they
>> would fit the videos size.
> 
> Yes, this is supposed to work fine.
> Please provide the command line you tested together with
> the complete, uncut console output to allow us to better
> understand your issue.
> 
[snip]

Hello,

at first the commandline and output of the conversion:

ffmpeg -analyzeduration 400M -probesize 400M -fflags +genpts -safe 0 
-protocol_whitelist subfile,file,concat -f concat -ss 00:20:14  -i 
i.concat -t 00:08:00  -map 0 -c copy -c:v libx264 -preset medium 
-filter:v crop=iw-0-0:ih-70-70:0:70 ./Spielfilme/Indiana\ Jones\ Itest.mkv
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg 
developers
   built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
   configuration: --prefix=/usr --extra-version=1ubuntu0.1 
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu 
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl 
--disable-stripping --enable-avresample --disable-filter=resample 
--enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom 
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca 
--enable-libcdio --enable-libcodec2 --enable-libflite 
--enable-libfontconfig --enable-libfreetype --enable-libfribidi 
--enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame 
--enable-libmysofa --enable-libopenjpeg --enable-libopenmpt 
--enable-libopus --enable-libpulse --enable-librsvg 
--enable-librubberband --enable-libshine --enable-libsnappy 
--enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora 
--enable-libtwolame --enable-libvidstab --enable-libvorbis 
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 
--enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi 
--enable-lv2 --enable-omx --enable-openal --enable-opencl 
--enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm 
--enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r 
--enable-libx264 --enable-shared
   libavutil      56. 31.100 / 56. 31.100
   libavcodec     58. 54.100 / 58. 54.100
   libavformat    58. 29.100 / 58. 29.100
   libavdevice    58.  8.100 / 58.  8.100
   libavfilter     7. 57.100 /  7. 57.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  5.100 /  5.  5.100
   libswresample   3.  5.100 /  3.  5.100
   libpostproc    55.  5.100 / 55.  5.100
Input #0, concat, from 'i.concat':
   Duration: 01:50:36.60, start: 0.000000, bitrate: 0 kb/s
     Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, bt470bg, 
progressive), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 90k tbc
     Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Stream #0:2: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
     Stream #0:3: Subtitle: dvd_subtitle
     Stream #0:4: Subtitle: dvd_subtitle
     Stream #0:5: Subtitle: dvd_subtitle
     Stream #0:6: Subtitle: dvd_subtitle
File './Spielfilme/Indiana Jones Itest.mkv' already exists. Overwrite ? 
[y/N] y
Stream mapping:
   Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (libx264))
   Stream #0:1 -> #0:1 (copy)
   Stream #0:2 -> #0:2 (copy)
   Stream #0:3 -> #0:3 (copy)
   Stream #0:4 -> #0:4 (copy)
   Stream #0:5 -> #0:5 (copy)
   Stream #0:6 -> #0:6 (copy)
Press [q] to stop, [?] for help
[libx264 @ 0x563b99fd0c40] using SAR=64/45
[libx264 @ 0x563b99fd0c40] using cpu capabilities: MMX2 SSE2Fast LZCNT
[libx264 @ 0x563b99fd0c40] profile High, level 3.0
[libx264 @ 0x563b99fd0c40] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 
AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - 
options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 
psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 
8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 
lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 
keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf 
mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 
aq=1:1.00
Output #0, matroska, to './Spielfilme/Indiana Jones Itest.mkv':
   Metadata:
     encoder         : Lavf58.29.100
     Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv420p, 
720x436 [SAR 64:45 DAR 256:109], q=-1--1, 25 fps, 1k tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.54.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
     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, stereo, 
fltp, 192 kb/s
     Stream #0:3: Subtitle: dvd_subtitle ([255][255][255][255] / 0xFFFFFFFF)
     Stream #0:4: Subtitle: dvd_subtitle ([255][255][255][255] / 0xFFFFFFFF)
     Stream #0:5: Subtitle: dvd_subtitle ([255][255][255][255] / 0xFFFFFFFF)
     Stream #0:6: Subtitle: dvd_subtitle ([255][255][255][255] / 0xFFFFFFFF)
frame=11997 fps= 39 q=-1.0 Lsize=   75237kB time=00:07:59.99 
bitrate=1284.1kbits/s speed=1.56x
video:36685kB audio:37533kB subtitle:719kB other streams:0kB global 
headers:0kB muxing overhead: 0.400157%
[libx264 @ 0x563b99fd0c40] frame I:83    Avg QP:20.05  size: 22853
[libx264 @ 0x563b99fd0c40] frame P:3235  Avg QP:22.63  size:  6353
[libx264 @ 0x563b99fd0c40] frame B:8679  Avg QP:25.17  size:  1742
[libx264 @ 0x563b99fd0c40] consecutive B-frames:  2.5%  2.2%  3.0% 92.3%
[libx264 @ 0x563b99fd0c40] mb I  I16..4: 13.3% 72.6% 14.1%
[libx264 @ 0x563b99fd0c40] mb P  I16..4:  1.7%  6.5%  1.1%  P16..4: 
44.9% 14.3%  8.1%  0.0%  0.0%    skip:23.4%
[libx264 @ 0x563b99fd0c40] mb B  I16..4:  0.1%  0.5%  0.1%  B16..8: 
45.1%  3.5%  0.6%  direct: 1.3%  skip:48.8%  L0:42.4% L1:53.0% BI: 4.6%
[libx264 @ 0x563b99fd0c40] 8x8 transform intra:70.7% inter:82.7%
[libx264 @ 0x563b99fd0c40] coded y,uvDC,uvAC intra: 62.9% 66.5% 24.5% 
inter: 12.4% 15.0% 0.6%
[libx264 @ 0x563b99fd0c40] i16 v,h,dc,p: 36% 14%  6% 43%
[libx264 @ 0x563b99fd0c40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 10% 20% 
6%  7% 10%  6%  9%  6%
[libx264 @ 0x563b99fd0c40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 39%  9% 15% 
5%  7% 10%  5%  7%  3%
[libx264 @ 0x563b99fd0c40] i8c dc,h,v,p: 50% 15% 28%  7%
[libx264 @ 0x563b99fd0c40] Weighted P-Frames: Y:4.7% UV:2.3%
[libx264 @ 0x563b99fd0c40] ref P L0: 58.0% 17.3% 18.0%  6.5%  0.3%
[libx264 @ 0x563b99fd0c40] ref B L0: 91.9%  6.5%  1.6%
[libx264 @ 0x563b99fd0c40] ref B L1: 96.6%  3.4%
[libx264 @ 0x563b99fd0c40] kb/s:626.08

Everything works fine.

#######################################################################
second output of ffplay of the cropped video with swscaler errors 
(subtitles are on, I seeked to one of the problematic parts, after 
00:04:00, errors do also appear without seeking)

ffplay -analyzeduration 400M -probesize 400M ./Spielfilme/Indiana\ 
Jones\ Itest.mkv
ffplay version 4.2.4-1ubuntu0.1 Copyright (c) 2003-2020 the FFmpeg 
developers
   built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
   configuration: --prefix=/usr --extra-version=1ubuntu0.1 
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu 
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl 
--disable-stripping --enable-avresample --disable-filter=resample 
--enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom 
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca 
--enable-libcdio --enable-libcodec2 --enable-libflite 
--enable-libfontconfig --enable-libfreetype --enable-libfribidi 
--enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame 
--enable-libmysofa --enable-libopenjpeg --enable-libopenmpt 
--enable-libopus --enable-libpulse --enable-librsvg 
--enable-librubberband --enable-libshine --enable-libsnappy 
--enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora 
--enable-libtwolame --enable-libvidstab --enable-libvorbis 
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 
--enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi 
--enable-lv2 --enable-omx --enable-openal --enable-opencl 
--enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm 
--enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r 
--enable-libx264 --enable-shared
   libavutil      56. 31.100 / 56. 31.100
   libavcodec     58. 54.100 / 58. 54.100
   libavformat    58. 29.100 / 58. 29.100
   libavdevice    58.  8.100 / 58.  8.100
   libavfilter     7. 57.100 /  7. 57.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  5.100 /  5.  5.100
   libswresample   3.  5.100 /  3.  5.100
   libpostproc    55.  5.100 / 55.  5.100
Input #0, matroska,webm, from './Spielfilme/Indiana Jones Itest.mkv':
   Metadata:
     ENCODER         : Lavf58.29.100
   Duration: 00:08:00.55, start: 0.000000, bitrate: 1282 kb/s
     Stream #0:0: Video: h264 (High), yuv420p(progressive), 720x436 [SAR 
64:45 DAR 256:109], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
     Metadata:
       ENCODER         : Lavc58.54.100 libx264
       DURATION        : 00:08:00.528000000
     Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
     Metadata:
       DURATION        : 00:08:00.552000000
     Stream #0:2: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
     Metadata:
       DURATION        : 00:08:00.552000000
     Stream #0:3: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
     Stream #0:4: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
     Stream #0:5: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
     Stream #0:6: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
Seek to 49% ( 0:03:55) of total duration ( 0:08:00)       B f=0/0
Seek to 49% ( 0:03:55) of total duration ( 0:08:00)       B f=0/0
Seek to 50% ( 0:03:57) of total duration ( 0:08:00)       B f=0/0
Seek to 50% ( 0:04:00) of total duration ( 0:08:00)       B f=0/0
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 193x0 -> 193x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f22b7c0] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
[swscaler @ 0x556d3f253d40] 203x0 -> 203x0 is invalid scaling dimension
Cannot initialize the conversion context
  264.79 A-V: -0.023 fd=   0 aq= 7134KB vq= 8193KB sq=33832B f=0/0

If there are no errors, the video runs fine, only the subtitles are 
cropped at the bottom.(-> screenshot).
video output is black, when the errors appear in chunks of some seconds 
at commandline.

#######################################################################
last output of ffplay without errors with the same video, same time but 
with switched off subtitles, as you can see.

ffplay -analyzeduration 400M -probesize 400M ./Spielfilme/Indiana\ 
Jones\ Itest.mkv
ffplay version 4.2.4-1ubuntu0.1 Copyright (c) 2003-2020 the FFmpeg 
developers
   built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
   configuration: --prefix=/usr --extra-version=1ubuntu0.1 
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu 
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl 
--disable-stripping --enable-avresample --disable-filter=resample 
--enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom 
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca 
--enable-libcdio --enable-libcodec2 --enable-libflite 
--enable-libfontconfig --enable-libfreetype --enable-libfribidi 
--enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame 
--enable-libmysofa --enable-libopenjpeg --enable-libopenmpt 
--enable-libopus --enable-libpulse --enable-librsvg 
--enable-librubberband --enable-libshine --enable-libsnappy 
--enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora 
--enable-libtwolame --enable-libvidstab --enable-libvorbis 
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 
--enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi 
--enable-lv2 --enable-omx --enable-openal --enable-opencl 
--enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm 
--enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r 
--enable-libx264 --enable-shared
   libavutil      56. 31.100 / 56. 31.100
   libavcodec     58. 54.100 / 58. 54.100
   libavformat    58. 29.100 / 58. 29.100
   libavdevice    58.  8.100 / 58.  8.100
   libavfilter     7. 57.100 /  7. 57.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  5.100 /  5.  5.100
   libswresample   3.  5.100 /  3.  5.100
   libpostproc    55.  5.100 / 55.  5.100
Input #0, matroska,webm, from './Spielfilme/Indiana Jones Itest.mkv':
   Metadata:
     ENCODER         : Lavf58.29.100
   Duration: 00:08:00.55, start: 0.000000, bitrate: 1282 kb/s
     Stream #0:0: Video: h264 (High), yuv420p(progressive), 720x436 [SAR 
64:45 DAR 256:109], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
     Metadata:
       ENCODER         : Lavc58.54.100 libx264
       DURATION        : 00:08:00.528000000
     Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
     Metadata:
       DURATION        : 00:08:00.552000000
     Stream #0:2: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
     Metadata:
       DURATION        : 00:08:00.552000000
     Stream #0:3: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
     Stream #0:4: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
     Stream #0:5: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
     Stream #0:6: Subtitle: dvd_subtitle (default)
     Metadata:
       DURATION        : 00:08:00.024000000
Switch subtitle stream from #3 to #4KB vq= 9132KB sq=    0B f=0/0
Switch subtitle stream from #4 to #5KB vq= 9126KB sq=    0B f=0/0
Switch subtitle stream from #5 to #6KB vq= 9127KB sq=    0B f=0/0
Switch subtitle stream from #6 to #-1B vq= 9158KB sq=    0B f=0/0
Seek to 47% ( 0:03:46) of total duration ( 0:08:00)       B f=0/0
Seek to 48% ( 0:03:50) of total duration ( 0:08:00)       B f=0/0
Seek to 50% ( 0:03:58) of total duration ( 0:08:00)       B f=0/0
Seek to 50% ( 0:04:01) of total duration ( 0:08:00)       B f=0/0
  266.42 A-V: -0.032 fd=   0 aq=   59KB vq=   85KB sq=    0B f=0/0


#######################################################################
Subtitles, if they are on, are cropped at the bottom, because it seems, 
that they do not fit to the cropped video. Of course this are 
bitmap-subtitles from a dvd.

I put the cropped video snippet and a screenshot here for you, also the 
concat-file, which is created with dvd2concat script from ffmpeg sources:

https://webmail.freenet.de/Cloud/?shareToken=1b19a0928b483b75b382830937698a114e6ccea24b65f92ec1d098e9b55f800a

The link is valid for 14 days.

Thank you for this great peace of software.
Wolfgang


-- 

- May the source be with you -


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