Today i was a little bit advandced and have tried Nightly Build 649.
I have drawn some lines on some frames and tried to render it as a mp4 in Full HD.
At about 42 % i had to hit spacebar , to interrupt this process, because the computer was already slow.
[30513.999735] CPU: 0 PID: 7555 Comm: AppRun Not tainted 6.1.0-9-amd64 #1  Debian 6.1.27-1 [30513.999738] Hardware name: System manufacturer System Product Name/P7P55D-E, BIOS 1601    06/26/2012 [30513.999739] Call Trace: [30513.999742]  <TASK> [30513.999744]  dump_stack_lvl+0x44/0x5c [30513.999750]  dump_header+0x4a/0x211 [30513.999754]  oom_kill_process.cold+0xb/0x10 [30513.999757]  out_of_memory+0x1fd/0x4c0 [30513.999762]  __alloc_pages_slowpath.constprop.0+0xc73/0xdc0 [30513.999766]  __alloc_pages+0x305/0x330 [30513.999769]  __folio_alloc+0x17/0x50 [30513.999771]  ? policy_node+0x51/0x70 [30513.999774]  vma_alloc_folio+0x9c/0x370 [30513.999777]  __handle_mm_fault+0x92f/0xfa0 [30513.999782]  handle_mm_fault+0xdb/0x2d0 [30513.999785]  do_user_addr_fault+0x1cd/0x690 [30513.999789]  exc_page_fault+0x70/0x170 [30513.999792]  asm_exc_page_fault+0x22/0x30 [30513.999796] RIP: 0033:0x7fb59f2c1f40 [30513.999798] Code: ae 10 10 00 00 0f 10 b6 20 10 00 00 0f 10 be 30 10 00 00 48 83 ee c0 66 0f e7 07 66 0f e7 4f 10 66 0f e7 57 20 66 0f e7 5f 30 <66> 0f e7 a7 00 10 00 00 66 0f e7 af 10 10 00 00 66 0f e7 b7 20 10 [30513.999800] RSP: 002b:00007ffdff325ec8 EFLAGS: 00010207 [30513.999802] RAX: 00000000c0b95148 RBX: 000000000120b910 RCX: 0000000000000006 [30513.999804] RDX: 0000000000000448 RSI: 0000000003729088 RDI: 00000000c11b6000 [30513.999805] RBP: 0000000000828480 R08: ffffffffffffffc8 R09: 0000000000000000 [30513.999807] R10: 0000000000000104 R11: 0000000000c00000 R12: 0000000003108190 [30513.999808] R13: 00007ffdff325f00 R14: 0000000000828480 R15: 00007ffdff325f70 [30513.999811]  </TASK> [30513.999812] Mem-Info: [30513.999814] active_anon:783 inactive_anon:924659 isolated_anon:0                 active_file:338 inactive_file:320 isolated_file:6                 unevictable:2695 dirty:0 writeback:0                 slab_reclaimable:9108 slab_unreclaimable:15226                 mapped:5928 shmem:4203 pagetables:4254                 sec_pagetables:0 bounce:0                 kernel_misc_reclaimable:0                 free:22845 free_pcp:0 free_cma:0 [30513.999819] Node 0 active_anon:3132kB inactive_anon:3698636kB active_file:1352kB inactive_file:1280kB unevictable:10780kB isolated(anon):0kB isolated(file):24kB mapped:23712kB dirty:0kB writeback:0kB shmem:16812kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1253376kB writeback_tmp:0kB kernel_stack:5008kB pagetables:17016kB sec_pagetables:0kB all_unreclaimable? no [30513.999824] Node 0 DMA free:14848kB boost:0kB min:264kB low:328kB high:392kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [30513.999829] lowmem_reserve[]: 0 3376 3813 3813 3813 [30513.999833] Node 0 DMA32 free:61112kB boost:2048kB min:61648kB low:76548kB high:91448kB reserved_highatomic:0KB active_anon:2212kB inactive_anon:3431180kB active_file:492kB inactive_file:556kB unevictable:1704kB writepending:0kB present:3652032kB managed:3541576kB mlocked:1704kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [30513.999839] lowmem_reserve[]: 0 0 437 437 437 [30513.999842] Node 0 Normal free:15420kB boost:17356kB min:25072kB low:27000kB high:28928kB reserved_highatomic:0KB active_anon:920kB inactive_anon:267304kB active_file:804kB inactive_file:908kB unevictable:9076kB writepending:0kB present:524288kB managed:447676kB mlocked:9076kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [30513.999847] lowmem_reserve[]: 0 0 0 0 0 [30513.999851] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 3*4096kB (M) = 14848kB [30513.999862] Node 0 DMA32: 599*4kB (UME) 552*8kB (UME) 426*16kB (UME) 295*32kB (UME) 156*64kB (UME) 70*128kB (UME) 40*256kB (UM) 18*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 61468kB [30513.999875] Node 0 Normal: 453*4kB (UME) 509*8kB (UME) 374*16kB (UME) 126*32kB (UE) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 15900kB [30513.999887] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [30513.999889] 6961 total pagecache pages [30513.999889] 0 pages in swap cache [30513.999890] Free swap  = 0kB [30513.999891] Total swap = 0kB [30513.999892] 1048078 pages RAM [30513.999893] 0 pages HighMem/MovableOnly [30513.999893] 46925 pages reserved [30513.999894] 0 pages hwpoisoned [30513.999895] Tasks state (memory values in pages): [30513.999895] [  pid  ]   uid  tgid total_vm      rss pgtables_bytes swapents oom_score_adj name [30513.999898] [    279]     0   279    12393     1072   102400        0          -250 systemd-journal [30513.999901] [    305]     0   305     6834     1249    73728        0         -1000 systemd-udevd [30513.999904] [    495]     0   495    59432     1288    98304        0             0 accounts-daemon [30513.999906] [    498]   104   498     1766      370    61440        0             0 avahi-daemon [30513.999909] [    500]     0   500     1739      457    53248        0             0 cron [30513.999911] [    502]   101   502     2332      703    57344        0          -900 dbus-daemon [30513.999913] [    508]   997   508    77414     1251    94208        0             0 polkitd [30513.999915] [    510]   104   510     1722       77    57344        0             0 avahi-daemon [30513.999917] [    511]     0   511     2925      640    57344        0             0 smartd [30513.999920] [    512]     0   512    12427      757    90112        0             0 systemd-logind [30513.999922] [    513]     0   513    98701     2198   126976        0             0 udisksd [30513.999924] [    549]     0   549    64925     1477   139264        0             0 NetworkManager [30513.999927] [    553]     0   553     4317     1727    81920        0             0 wpa_supplicant [30513.999929] [    575]     0   575    60896      460   102400        0             0 ModemManager [30513.999931] [    588]     0   588     6813      777    90112        0             0 cupsd [30513.999933] [    592]     0   592    77120      797    94208        0             0 lightdm [30513.999936] [    610]     0   610     1555      192    53248        0             0 agetty [30513.999938] [    682]   110   682    22059       63    61440        0             0 rtkit-daemon [30513.999940] [    915]     0   915    58591      783    98304        0             0 upowerd [30513.999942] [   1027]   111  1027    61571     2504   118784        0             0 colord [30513.999945] [   1041]     0  1041    44025      811   114688        0             0 cups-browsed [30513.999947] [   1083]   112  1083     1631      378    49152        0             0 yubiserver [30513.999950] [   1124]   105  1124     2673     2669    65536        0             0 ntpd [30513.999952] [   6362]     0  6362   130061    15151   512000        0             0 Xorg [30513.999954] [   6429]     0  6429    40469      798    81920        0             0 lightdm [30513.999956] [   6445]  1000  6445     4791     1268    81920        0           100 systemd [30513.999959] [   6446]  1000  6446    42158      870    86016        0           100 (sd-pam) [30513.999961] [   6461]  1000  6461   170727     3275   225280        0           200 pulseaudio [30513.999984] [   6462]  1000  6462    67106     3057   155648        0             0 xfce4-session [30513.999987] [   6472]  1000  6472     2132      522    49152        0           200 dbus-daemon [30513.999989] [   6509]  1000  6509     1915      193    49152        0             0 ssh-agent [30513.999991] [   6519]  1000  6519    77799     1173   102400        0           200 at-spi-bus-laun [30513.999994] [   6525]  1000  6525     2010      570    49152        0           200 dbus-daemon [30513.999996] [   6535]  1000  6535    41095     1157    86016        0           200 at-spi2-registr [30513.999998] [   6545]  1000  6545    20401      964    65536        0           200 gpg-agent [30514.000000] [   6547]  1000  6547    99440     3588   229376        0             0 xfwm4 [30514.000003] [   6550]  1000  6550    77986     1278   114688        0           200 gvfsd [30514.000005] [   6568]  1000  6568    58034     3077   167936        0             0 xfsettingsd [30514.000007] [   6571]  1000  6571   119580     3294   237568        0             0 xfce4-panel [30514.000010] [   6575]  1000  6575   141029     5758   253952        0             0 Thunar [30514.000012] [   6580]  1000  6580   137583     6966   270336        0             0 xfdesktop [30514.000014] [   6583]  1000  6583    98408     3519   217088        0             0 panel-7-whisker [30514.000017] [   6584]  1000  6584    85443     2349   163840        0             0 panel-6-systray [30514.000019] [   6585]  1000  6585   100308     4110   221184        0             0 panel-9-power-m [30514.000021] [   6588]  1000  6588   100267     2775   221184        0             0 panel-10-notifi [30514.000023] [   6589]  1000  6589   167045     3433   237568        0             0 panel-8-pulseau [30514.000026] [   6590]  1000  6590    49147     2592   155648        0             0 panel-23-cpugra [30514.000028] [   6597]  1000  6597    71167     2091   172032        0             0 panel-24-netloa [30514.000030] [   6602]  1000  6602    94781     6721   241664        0             0 blueman-applet [30514.000032] [   6607]  1000  6607    47046     1085   131072        0             0 xfce4-power-man [30514.000035] [   6611]  1000  6611    66827     2747   159744        0             0 light-locker [30514.000037] [   6616]  1000  6616    46801      656   126976        0             0 polkit-gnome-au [30514.000039] [   6622]  1000  6622   123864     3739   262144        0             0 nm-applet [30514.000041] [   6623]  1000  6623    88034     1691   135168        0           200 gvfs-udisks2-vo [30514.000044] [   6631]  1000  6631    39078      293    73728        0           200 dconf-service [30514.000046] [   6632]  1000  6632    16103     5661   159744        0             0 applet.py [30514.000048] [   6642]  1000  6642    58469     1058    90112        0           200 gvfs-mtp-volume [30514.000050] [   6646]  1000  6646   212671      956   147456        0             0 xiccd [30514.000053] [   6649]  1000  6649    58740     1027    90112        0           200 gvfs-gphoto2-vo [30514.000055] [   6657]  1000  6657    58518     1162    94208        0           200 gvfs-goa-volume [30514.000057] [   6658]  1000  6658   118203     3408   229376        0           200 xfce4-notifyd [30514.000060] [   6668]  1000  6668    78238     1604   102400        0           200 gvfs-afc-volume [30514.000062] [   6714]  1000  6714    78145     1708   106496        0           200 gvfsd-trash [30514.000064] [   6770]  1000  6770    40117     1131    77824        0           200 gvfsd-metadata [30514.000066] [   6830]  1000  6830    12122      510    90112        0           200 obexd [30514.000069] [   6837]  1000  6837   121587     3990   245760        0             0 xfce4-terminal [30514.000071] [   6858]  1000  6858     1915      580    61440        0             0 bash [30514.000073] [   6984]  1000  6984   232851     1836   184320        0           200 xdg-desktop-por [30514.000076] [   6995]  1000  6995   186930     1665   159744        0           200 xdg-document-po [30514.000078] [   7006]  1000  7006    59295      810    94208        0           200 xdg-permission- [30514.000080] [   7012]  1000  7012      620      235    40960        0           200 fusermount3 [30514.000082] [   7017]  1000  7017    84159     1582   147456        0           200 xdg-desktop-por [30514.000085] [   7401]  1000  7401    58414      747    90112        0           200 xfconfd [30514.000087] [   7478]  1000  7478    96547     1668   118784        0           200 gvfsd-network [30514.000090] [   7492]  1000  7492    78569     1202   106496        0           200 gvfsd-dnssd [30514.000092] [   7555]  1000  7555  1022688   796013  7258112        0             0 AppRun [30514.000094] [   7558]  1000  7558     3061      503    53248        0             0 pencil2d-linux- [30514.000097] [   7587]  1000  7587   126779    13242  1142784        0             0 ffmpeg [30514.000099] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/user.slice/user-1000.slice/session-16.scope,task=AppRun,pid=7555,uid=1000 [30514.000119] Out of memory: Killed process 7555 (AppRun) total-vm:4090752kB, anon-rss:3173648kB, file-rss:1000kB, shmem-rss:9404kB, UID:1000 pgtables:7088kB oom_score_adj:0 
Nightly Build Aug 8 2023
commit: 7b0f1207179852b4203984940aacf9e76408e219
date: 2023-08-08_07:53:57
Operating System: PeppermintOS
CPU Architecture: x86_64
Qt Version: 5.15.2
Maybe you can try this too: xxxx.pclx (1.7 MB)
I tried it again with NB649, with the same result. It stuck and i had to turn off my computer.
Then i tried to render it with the development version and the modification you have said. It worked and it rendered the whole movie in full HD! After this sucess i tried to render it to webm in full hd and it stuck at 73%. Development Build Jul 23 2023
With the development build it was no problem to render this file to HD in mp4 and then in webm. The rendering into webm was much more cpu intensive. Many instances of ffmpeg were crunching together.
A file with 3000 frames needed about 5 minutes to render a HD output into mp4 on my i7.
5000 frames in HD with music and 24fps. No problem.
FraFra