I tried cinepack encoder, it was single-threaded, and for 720x400 movie fragment (25 sec) encoding was finished in 16 min, with nearly 4Ghz AMD processor! Also, I tried dca/MLP/truehd audio encoders from ffmpeg, but they all require 'strict=-2", and I got few BOOBYs along the way: guest@slax:/dev/shm$ cin Cinelerra Infinity - built: Oct 13 2019 04:15:15 git://git.cinelerra-gg.org/goodguy/cinelerra.git (c) 2006-2019 Heroine Virtual Ltd. by Adam Williams (c) 2007-2019 cin5 derivative 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. BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase8draw_boxEiiiiP9BC_Pixmap+0x27) [0x8826767] cin(_ZN10BC_TextBox4drawEi+0x79) [0x87fe789] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase8draw_boxEiiiiP9BC_Pixmap+0x27) [0x8826767] cin(_ZN10BC_TextBox11draw_borderEv+0x67) [0x87fe567] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase8draw_boxEiiiiP9BC_Pixmap+0x27) [0x8826767] cin(_ZN10BC_TextBox11draw_borderEv+0xb4) [0x87fe5b4] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x85) [0x88287a5] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0xe0) [0x8828800] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x157) [0x8828877] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x1bb) [0x88288db] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x22c) [0x882894c] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x287) [0x88289a7] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x2fb) [0x8828a1b] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x353) [0x8828a73] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] [truehd @ 0xe2b1a680] The encoder 'truehd' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it. FFMPEG::open_encoder err: Experimental feature int FFMPEG::open_encoder(const char*, const char*): open failed truehd:/dev/shm/cinepack.qt FFStream::encode_frame: encode failed. file: /dev/shm/cinepack.qt err: Недопустимый аргумент FFStream::flush failed :file:/dev/shm/cinepack.qt err: Операция не позволена Render::render_single: Session finished. [truehd @ 0xe9e03e40] The encoder 'truehd' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it. FFMPEG::open_encoder err: Experimental feature int FFMPEG::open_encoder(const char*, const char*): open failed truehd:/dev/shm/cinepack.qt FFStream::encode_frame: encode failed. file: /dev/shm/cinepack.qt err: Недопустимый аргумент FFStream::flush failed :file:/dev/shm/cinepack.qt err: Операция не позволена Render::render_single: Session finished. BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase8draw_boxEiiiiP9BC_Pixmap+0x27) [0x8826767] cin(_ZN10BC_TextBox4drawEi+0x79) [0x87fe789] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase8draw_boxEiiiiP9BC_Pixmap+0x27) [0x8826767] cin(_ZN10BC_TextBox11draw_borderEv+0x67) [0x87fe567] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase8draw_boxEiiiiP9BC_Pixmap+0x27) [0x8826767] cin(_ZN10BC_TextBox11draw_borderEv+0xb4) [0x87fe5b4] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x85) [0x88287a5] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0xe0) [0x8828800] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x157) [0x8828877] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x1bb) [0x88288db] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x22c) [0x882894c] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x287) [0x88289a7] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x2fb) [0x8828a1b] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] BOOBY! cin(_Z5boobyv+0x2f) [0x881369f] cin(_ZN13BC_WindowBase14draw_3d_borderEiiiiiiii+0x353) [0x8828a73] cin(_ZN10BC_TextBox11draw_borderEv+0x112) [0x87fe612] cin(_ZN10BC_TextBox4drawEi+0x134) [0x87fe844] cin(_ZN16BC_ScrollTextBox6updateEPKc+0xd5) [0x8806e25] cin(_ZN15FFOptionsDialog17handle_done_eventEi+0x122) [0x8565ad2] cin(_ZN15BC_DialogThread3runEv+0xe9) [0x87b8d49] cin(_ZN6Thread10entrypointEPv+0x3f) [0x883bf1f] /lib/libpthread.so.0(+0x66f2) [0xf753e6f2] /lib/libc.so.6(clone+0x6e) [0xf70021ee] FFMPEG::encode_activate: write header failed /dev/shm/cinepack.qt err: Недопустимый аргумент Render::render_single: Session finished. Render::render_single: Session finished. Trying to stop such ultralong encode via pressing single red X near rendering progress bar in main CinGG window not resulted in immediate stopping, it was doing something for few more minutes, I watched output file still growing with du -h file, but then end result was viewable in mplayer: mplayer /dev/shm/cinepack.qt MPlayer SVN-r38152-5.5.0 (C) 2000-2019 MPlayer Team 224 audio & 466 video codecs Playing /dev/shm/cinepack.qt. libavformat version 58.33.100 (internal) libavformat file format detected. [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5758c9e0]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol [lavf] stream 0: video (cinepak), -vid 0 [lavf] stream 1: audio (pcm_mulaw), -aid 0, -alang rus VIDEO: [cvid] 720x400 24bpp 25.000 fps 3793.2 kbps (463.0 kbyte/s) ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family libavcodec version 58.59.102 (internal) Selected video codec: [ffcvid] vfm: ffmpeg (FFmpeg Cinepak Video) ========================================================================== Clip info: major_brand: qt minor_version: 512 compatible_brands: qt encoder: Lavf58.29.100 Load subtitles in /dev/shm/ ========================================================================== Forced audio codec: mad Opening audio decoder: [alaw] aLaw/uLaw audio decoder AUDIO: 48000 Hz, 2 ch, s16le, 768.0 kbit/50.00% (ratio: 96000->192000) Selected audio codec: [ulaw] afm: alaw (uLaw) ========================================================================== AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample) Starting playback... Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] Movie-Aspect is 1.80:1 - prescaling to correct movie aspect. [swscaler @ 0x57820140]bicubic scaler, from rgb24 to yuv420p using MMXEXT VO: [vdpau] 720x400 => 720x400 Planar YV12 Movie-Aspect is 1.80:1 - prescaling to correct movie aspect. VO: [vdpau] 720x400 => 720x400 Planar YV12 A: 25.0 V: 25.8 A-V: -0.840 ct: 0.012 0/ 0 2% 19% 0.2% 40 0