[Cin] "seek fail 19, 633" on mkv

[Andrew Randrianasulu]

Oh, this is me again :/

While trying just-encoded vc2 mkv in CinGG
I encountered those errors/warnings:

root at slax:/usr/share/cin/ffmpeg/video# cin
Cinelerra Infinity - built: Mar 14 2020 01:25:13
git://git.cinelerra-gg.org/goodguy/cinelerra.git
(c) 2006-2019 Heroine Virtual Ltd. by Adam Williams
2007-2020 mods for Cinelerra-GG by W.P.Morrow aka goodguy
Cinelerra is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions. There is absolutely no warranty for Cinelerra.

IndexFile::draw_index: index has 0 zoom
IndexFile::draw_index: index has 0 zoom
IndexFile::draw_index: index has 0 zoom
IndexFile::draw_index: index has 0 zoom
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.pcm.dmix.channels'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: Нет такого файла или каталога
ALSA lib conf.c:5036:(snd_config_expand) Args evaluate error: Нет такого файла или каталога
ALSA lib pcm.c:2564:(snd_pcm_open_noupdate) Unknown PCM dmix:SB
AudioALSA::open_output default: Нет такого файла или каталога
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
** seek fail 19, 633
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
** seek fail 75, 2502
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
** seek fail 83, 2769
** seek fail 173, 5772
** seek fail 242, 8074
** seek fail 2, 66
** seek fail 4, 133
** seek fail 5, 166
** seek fail 6, 200
** seek fail 7, 233
** seek fail 9, 300
** seek fail 10, 333
** seek fail 11, 367
** seek fail 12, 400
** seek fail 14, 467
** seek fail 15, 500
** seek fail 16, 533
** seek fail 17, 567
** seek fail 19, 633
** seek fail 20, 667
** seek fail 21, 700
** seek fail 22, 734
** seek fail 24, 800
** seek fail 25, 834
** seek fail 26, 867
** seek fail 27, 900
** seek fail 29, 967
** seek fail 30, 1001
** seek fail 31, 1034
** seek fail 32, 1067
** seek fail 34, 1134
** seek fail 35, 1167
** seek fail 36, 1201
** seek fail 37, 1234
** seek fail 39, 1301
** seek fail 40, 1334
** seek fail 41, 1368
** seek fail 42, 1401
** seek fail 44, 1468
** seek fail 45, 1501
** seek fail 46, 1534
** seek fail 47, 1568
** seek fail 49, 1634
** seek fail 50, 1668
** seek fail 51, 1701
** seek fail 52, 1735
** seek fail 54, 1801
** seek fail 55, 1835
** seek fail 56, 1868
** seek fail 57, 1901
** seek fail 59, 1968
** seek fail 60, 2002
** seek fail 61, 2035
** seek fail 62, 2068
** seek fail 64, 2135
** seek fail 65, 2168
** seek fail 66, 2202
** seek fail 67, 2235
** seek fail 69, 2302
** seek fail 70, 2335
** seek fail 71, 2369
** seek fail 72, 2402
** seek fail 74, 2469
** seek fail 75, 2502
** seek fail 76, 2535
** seek fail 77, 2569
** seek fail 79, 2635
** seek fail 80, 2669
** seek fail 81, 2702
** seek fail 82, 2736
** seek fail 84, 2802
** seek fail 85, 2836
** seek fail 86, 2869
** seek fail 87, 2902
** seek fail 89, 2969
** seek fail 90, 3003
** seek fail 91, 3036
** seek fail 92, 3069
** seek fail 94, 3136
** seek fail 95, 3169
** seek fail 96, 3203
** seek fail 97, 3236
** seek fail 99, 3303
** seek fail 100, 3336
** seek fail 101, 3370
** seek fail 102, 3403
** seek fail 104, 3470
** seek fail 105, 3503
** seek fail 106, 3536
** seek fail 107, 3570
** seek fail 109, 3636
** seek fail 110, 3670
** seek fail 111, 3703
FFMPEG::open_decoder: some stream times estimated: /dev/shm/new_test-vc2_yuv420_8bit.mkv
** seek fail 4, 133
** seek fail 32, 1067
** seek fail 46, 1534
** seek fail 60, 2002
** seek fail 88, 2936
** seek fail 102, 3403
** seek fail 116, 3870
** seek fail 157, 5238
** seek fail 214, 7140
** seek fail 269, 8975
** seek fail 8, 266
** seek fail 11, 367
** seek fail 14, 467
** seek fail 22, 734
** seek fail 25, 834
** seek fail 29, 967
** seek fail 36, 1201
** seek fail 39, 1301
** seek fail 43, 1434
** seek fail 50, 1668
** seek fail 53, 1768
** seek fail 57, 1901
** seek fail 64, 2135
** seek fail 66, 2202
** seek fail 71, 2369
** seek fail 78, 2602
** seek fail 81, 2702
** seek fail 85, 2836
** seek fail 92, 3069
** seek fail 95, 3169
** seek fail 99, 3303
** seek fail 106, 3536
** seek fail 109, 3636
** seek fail 113, 3770
** seek fail 120, 4004
** seek fail 123, 4104
** seek fail 127, 4237
** seek fail 134, 4471
** seek fail 137, 4571
** seek fail 141, 4704
** seek fail 144, 4804
** seek fail 148, 4938
** seek fail 151, 5038
** seek fail 155, 5171
** seek fail 162, 5405
** seek fail 165, 5505
** seek fail 169, 5638
** seek fail 172, 5739
** seek fail 176, 5872
** seek fail 179, 5972
** seek fail 183, 6106
** seek fail 189, 6306
** seek fail 193, 6439
** seek fail 197, 6573
** seek fail 200, 6673
** seek fail 204, 6806
** seek fail 207, 6906
** seek fail 211, 7040
** seek fail 218, 7273
** seek fail 221, 7374
** seek fail 225, 7507
** seek fail 228, 7607
** seek fail 232, 7741
** seek fail 235, 7841
** seek fail 239, 7974
** seek fail 246, 8208
** seek fail 249, 8308
** seek fail 253, 8441
** seek fail 256, 8541
** seek fail 260, 8675
** seek fail 263, 8775
** seek fail 267, 8908
** seek fail 274, 9142
** seek fail 277, 9242
** seek fail 281, 9376
Session time: 0:33:20
Cpu time: user: 0:01:00.374 sys: 0:00:31.212

It seems those thumbnail generating seeks fail after first keyframe?
I see first few images on timeline and then they all become black :/

Still, image in compositor is OK!

Ah, and wanted to report my weird bug with single click registering as doubleclick is gone!
Hopefully, it was just local glitch - no need to track this down, at least!