8. 4. 2026
Progressive
ffmpeg -i input.mov -c:v cfhd -pix_fmt yuv422p10le -quality medium output.mov
Interlaced?
ffmpeg -i input_interlaced.mov -flags +ildct -top 1 -c:v cfhd -pix_fmt yuv422p10le -quality medium output_interlaced.mov
Acording to deepseek quality levels are
Quality Setting Numeric Value Typical Use Case
film3+ 0 Highest quality. Archival, VFX, color grading
film3 1
film2+ 2
film2 3
film1.5 4
film1+ 5
film1 6 Visually lossless for most content
high+ 7
high 8 4K/UHD mastering
medium+ 9
medium 10 HD mastering
low+ 11
low 12 Smallest files. Proxies, dailies
6. 4. 2026
Pop!_OS installed, Wi-Fi is trouble; this seems to solve it:
https://www.reddit.com/r/pop_os/comments/13m6pmo/wifi_not_working_on_pop_os_2204_on_custom_pc
https://wiki.debian.org/NetworkManager/iwd
1-Install iwd:
sudo apt install iwd
2-configure NetworkManager:
open this: /etc/NetworkManager/NetworkManager.conf
add this to it:
[device]
wifi.backend=iwd
3-Stop NetworkManager and disable wpa_supplicant:
sudo systemctl stop NetworkManager
sudo systemctl disable --now wpa_supplicant
sudo systemctl restart NetworkManager
4- Restart the pc.
neofetch
///////////// user@pop-os
///////////////////// -----------
///////*767//////////////// OS: Pop!_OS 24.04 LTS x86_64
//////7676767676*////////////// Host: HP 250 G6 Notebook PC
/////76767//7676767////////////// Kernel: 6.18.7-76061807-generic
/////767676///*76767/////////////// Uptime: 27 mins
///////767676///76767.///7676*/////// Packages: 1804 (dpkg)
/////////767676//76767///767676//////// Shell: bash 5.2.21
//////////76767676767////76767///////// Resolution: 1920x1080
///////////76767676//////7676////////// DE: COSMIC
////////////,7676,///////767/////////// Theme: adw-gtk3-dark [GTK3]
/////////////*7676///////76//////////// Icons: Cosmic [GTK3]
///////////////7676//////////////////// Terminal: cosmic-term
///////////////7676///767//////////// CPU: Intel i3-6006U (4) @ 2.000GHz
//////////////////////'//////////// GPU: Intel Skylake GT2 [HD Graphics 520]
//////.7676767676767676767,////// Memory: 2391MiB / 3829MiB
/////767676767676767676767/////
///////////////////////////
/////////////////////
/////////////
Runs quite slow (the GUI that is), but can decode HD H.265 video without a sweat.
4. 4. 2026
Example:
cat myfile.txt | ollama run gemma4 "Fix all typos and grammatical errors in this text and return the corrected version." --think=false
There is also much slower, but I guess much smarter:
Tipos script can take typed text or files as input.
Examples:
tipos "what th hec is thi?
=== Checking text: "what th hec is thi?" ===
What the heck is this?
tipos "on plus one is three, two pls two in five.
=== Checking text: "on plus one is three, two pls two in five." ===
One plus one is two, two plus two is four.
4. 4. 2026
If CD DRIVE is mounted as e:\, this powershell command will eject it:
(New-Object -comObject Shell.Application).NameSpace(17).ParseName("E:").InvokeVerb("Eject")
30. 3. 2026
GOP = Group of Pictures. Quote from https://en.wikipedia.org/wiki/Group_of_pictures:
Generally, the more I frames the video stream has, the more editable it is. However, having more I frames substantially increases bit rate needed to code the video.
Chatgpt constructed bash script that echoes some I,P,B data in video stream could look like
#!/usr/bin/env bash
# GOP
# usage: gop file.mp4
input="$1"
ffprobe -v error \
-select_streams v:0 \
-show_frames \
-show_entries frame=pict_type,pkt_size \
-of csv=p=0 "$input" |
awk -F',' '
{
type=""
size=""
for (i=1; i<=NF; i++) {
if ($i ~ /^[IPB]$/) type=$i
if ($i ~ /^[0-9]+$/) size=$i
}
if (!type && size) type="I"
if (type && size) {
if (type=="I") sym="I────"
else if (type=="P") sym=" P "
else sym=" B"
printf "%6d %s %8d bytes\n", NR, sym, size
}
}
'
Or a version of this script that adds bitrate distribution ascii art. Ascii bitrate is fit to fill normalized.
Typical cineform mov, all frames are I frames (ffprobe will not return frame type, so script assumes I type):
273 I──── 948632 bytes ####################
274 I──── 992096 bytes #####################
275 I──── 1122612 bytes ########################
276 I──── 1100060 bytes ########################
277 I──── 1022352 bytes ######################
278 I──── 986004 bytes #####################
279 I──── 965564 bytes #####################
280 I──── 1077204 bytes #######################
281 I──── 1076352 bytes #######################
282 I──── 950700 bytes ####################
283 I──── 975628 bytes #####################
284 I──── 965556 bytes #####################
285 I──── 1083288 bytes #######################
286 I──── 1135564 bytes #########################
287 I──── 1041004 bytes ######################
288 I──── 1002624 bytes ######################
289 I──── 1004092 bytes ######################
290 I──── 1119344 bytes ########################
291 I──── 1083284 bytes #######################
292 I──── 1004480 bytes ######################
293 I──── 914176 bytes ####################
294 I──── 1304372 bytes ############################
295 I──── 1377500 bytes ##############################
296 I──── 1250604 bytes ###########################
297 I──── 1313788 bytes #############################
298 I──── 1377376 bytes ##############################
299 I──── 1319956 bytes #############################
300 I──── 1391172 bytes ##############################
301 I──── 1433520 bytes ###############################
302 I──── 1386680 bytes ##############################
Typical ultrafast x.264 (screen recording), doesn’t bother with B frames
240 P 5460 bytes
241 P 6516 bytes
242 P 384257 bytes #############
243 P 362919 bytes ############
244 P 326074 bytes ###########
245 P 263442 bytes #########
246 P 87488 bytes ###
247 P 65892 bytes ##
248 P 9293 bytes
249 P 5598 bytes
250 P 7197 bytes
251 I──── 1141412 bytes #######################################
252 P 6487 bytes
253 P 5613 bytes
254 P 5381 bytes
255 P 7852 bytes
256 P 7703 bytes
257 P 6832 bytes
258 P 5816 bytes
259 P 6258 bytes
260 P 8294 bytes
261 P 9133 bytes
262 P 7064 bytes
263 P 5916 bytes
264 P 6739 bytes
265 P 7497 bytes
266 P 11224 bytes
267 P 8326 bytes
268 P 6563 bytes
269 P 5772 bytes
Veryslow x.264 preset
377 I──── 315818 bytes ######################
378 B 47189 bytes ###
379 B 70166 bytes #####
380 B 42643 bytes ###
381 P 173192 bytes ############
382 B 44142 bytes ###
383 B 68863 bytes ####
384 B 38564 bytes ##
385 P 161360 bytes ###########
386 B 41360 bytes ##
387 B 74461 bytes #####
388 B 41257 bytes ##
389 P 156506 bytes ###########
390 B 38385 bytes ##
391 B 72214 bytes #####
392 B 44863 bytes ###
393 P 164925 bytes ###########
394 B 37340 bytes ##
395 B 70971 bytes #####
396 B 42263 bytes ###
397 P 148882 bytes ##########
398 B 46404 bytes ###
399 B 79438 bytes #####
400 B 47978 bytes ###
401 P 141652 bytes ##########
402 B 45448 bytes ###
403 B 74540 bytes #####
404 B 49253 bytes ###
405 P 121988 bytes ########
406 P 66809 bytes ####
407 I──── 558483 bytes ########################################
50 mbit XDCAM mpeg2 thing, GOP is 12 frames long, encoding type is CBR
139 P 621621 bytes #####################################
140 B 122509 bytes #######
141 B 240468 bytes ##############
142 P 282998 bytes #################
143 B 163902 bytes #########
144 B 307325 bytes ##################
145 I──── 371411 bytes ######################
146 B 154834 bytes #########
147 B 134406 bytes ########
148 P 214273 bytes ############
149 B 82567 bytes ####
150 B 169461 bytes ##########
151 P 534457 bytes ################################
152 B 51703 bytes ###
153 B 112532 bytes ######
154 P 515012 bytes ###############################
155 B 116230 bytes ######
156 B 240436 bytes ##############
157 I──── 460713 bytes ###########################
158 B 172820 bytes ##########
159 B 176916 bytes ##########
160 P 317669 bytes ###################
161 B 76998 bytes ####
162 B 188748 bytes ###########
163 P 537142 bytes ################################
164 B 63332 bytes ###
165 B 139571 bytes ########
166 P 544844 bytes ################################
167 B 89880 bytes #####
168 B 258842 bytes ###############
169 I──── 496320 bytes #############################
Smart conclusion here.
