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Multimedia Cheatsheet

Video crop factors

Common Digital Video Formats

Format Dimensions Aspect Ratio
HD 1280x720 16:9
FHD 1920x1080 16:9
4K-UHD 3840x2160 16:9
4K-DCI 4096x2160 256:135
5K 5120x2880 16:9
6K 6144x3456 16:9
8K 7680x4320 16:9

Cinemascope (2.35:1)

Format 2.35:1 (47:20) Letterbox FFmpeg Crop
HD 1280x544 88 1280:544:0:88
FHD 1920x816 132 1920:816:0:132
4K-UHD 3840x1632 264 3840:1632:0:264
4K-DCI 4096x1744 208 4096:1744:0:208
5K 5120x2176 352 5120:2176:0:352
6K 6144x2608 424 6144:2608:0:424
8K 7680x3264 528 7680:3264:0:528

Cinemascope (2.40:1)

Format 2.40:1 (12:5) Letterbox FFmpeg Crop
HD 1280x528 96 1280:528:0:96
FHD 1920x800 140 1920:800:0:140
4K-UHD 3840x1600 280 3840:1600:0:280
4K-DCI 4096x1712 224 4096:1712:0:224
5K 5120x2128 376 5120:2128:0:376
6K 6144x2560 448 6144:2560:0:448
8K 7680x3200 560 7680:3200:0:560

Ultra Panavision 70 (2.76:1)

Format 2.76:1/69:25 Letterbox FFmpeg Crop
HD 1280x464 128 1280:464:0:128
FHD 1920x688 196 1920:688:0:196
4K-UHD 3840x1382 384 3840:1382:0:384
4K-DCI 4096x1488 336 4096:1488:0:336
5K 5120x1856 512 5120:1856:0:512
6K 6144x2224 616 6144:2224:0:616
8K 7680x2784 768 7680:2784:0:768

4K-DCI

Format 4K-DCI (256:135) 2.35:1 Letterbox FFmpeg Crop
HD 1280x672 24 1280:672:0:24
FHD 1920x1008 36 1920:1008:0:36
4K-UHD 3840x2032 64 3840:2032:0:64
4K-DCI 4096x2160 0 4096:2160:0:0
5K 5120x2704 88 5120:2704:0:88
6K 6144x3248 104 6144:3248:0:104
8K 7680x4048 136 7680:4048:0:136

Slow motion percentage

From to Perc.
59.94 24 40%
119.88 24 20%
239.76 24 10%
59.94 29.97 50%
119.88 29.97 25%
239.76 29.97 12.5%
59.94 60 100%
119.88 60 50%
239.76 60 25%

EOS R5 ProRes RAW and CinemaDNG 5K (5120 x 2696)

ProRes RAW Mbps MB/s GB x Min
23.976 967.03 120.88 7.25
24 968 121 7.26
25 1,008.33 126.04 7.56
29.97 1,208.79 151.1 9.07
30 1,210.00 151.25 9.08
60 2,420.00 302.5 18.15
DNG No Compression Mbps MB/s GB x Min
23.976 5,295.43 661.93 39.72
24 5,300.72 662.59 39.76
25 5,521.59 690.2 41.41
29.97 6,619.28 827.41 49.64
30 6,625.90 828.24 49.69
60 13,251.80 1,656.48 99.39
DNG Lossless Mbps MB/s GB x Min
23.976 2,844.44 355.55 21.33
24 2,847.28 355.91 21.35
25 2,965.92 370.74 22.24
29.97 3,555.55 444.44 26.67
30 3,559.10 444.89 26.69
60 7,118.20 889.78 53.39
DNG 3:1 Mbps MB/s GB x Min
23.976 1,237.23 154.65 9.28
24 1,238.47 154.81 9.29
25 1,290.07 161.26 9.68
29.97 1,546.54 193.32 11.6
30 1,548.09 193.51 11.61
60 3,096.17 387.02 23.22
DNG 5:1 Mbps MB/s GB x Min
23.976 474.7 59.34 3.56
24 475.18 59.4 3.56
25 494.98 61.87 3.71
29.97 593.38 74.17 4.45
30 593.97 74.25 4.45
60 1,187.95 148.49 8.91
DNG 7:1 Mbps MB/s GB x Min
23.976 282.21 35.28 2.12
24 282.49 35.31 2.12
25 294.26 36.78 2.21
29.97 352.76 44.09 2.65
30 353.11 44.14 2.65
60 706.22 88.28 5.3

HDR Video Characteristics

Based on the QuickTime File Format and ProRes Video Parameter Editing.

The colour primaries can be selected from the list:

No. Colour Primaries
0 Reserved
1 ITU-R BT.709
2 Unspecified
3 Reserved
4 ITU-R BT.470M
5 ITU-R BT.470BG
6 SMPTE 170M
7 SMPTE 240M
8 FILM
9 ITU-R BT.2020
10 SMPTE ST 428-1
11 DCI P3
12 P3 D65

The transfer function can be selected from the list:

No. Transfer Function
0 Reserved
1 ITU-R BT.709
2 Unspecified
3 Reserved
4 Gamma 2.2 curve
5 Gamma 2.8 curve
6 SMPTE 170M
7 SMPTE 240M
8 Linear
9 Log
10 Log Sqrt
11 IEC 61966-2-4
12 ITU-R BT.1361 Extended Colour Gamut
13 IEC 61966-2-1
14 ITU-R BT.2020 10 bit
15 ITU-R BT.2020 12 bit
16 SMPTE ST 2084 (PQ)
17 SMPTE ST 428-1
18 ARIB STD-B67 (HLG)

The colour matrix can be selected from the list:

No. Colour Matrix
0 GBR
1 BT709
2 Unspecified
3 Reserved
4 FCC
5 BT470BG
6 SMPTE 170M
7 SMPTE 240M
8 YCOCG
9 BT2020 Non-constant Luminance
10 BT2020 Constant Luminance

YouTube Chapters with Resolve.

  1. Create markers in your timeline using the same color.
  2. Open the index panel.
  3. Clic on the three dot button and select to view only your color markers.
  4. Clic on the three dot button and select Export Edit Index to save your CSV file.
  5. Using the macOS Terminal, run this command replacing your CVS file name:
{
  echo "00:00 - Start"
  tail -n +2 Timeline\ 1.csv | \
  awk -F',' '{print $10 " - " $21}' | \
  grep -v "Marker 1" | \
  awk -F'[:, -"]+' '{printf "%02d:%02d - %s\n", $2, $3, $7}'
} > output.txt

Sony Codecs

Sony Format Resolution Codec CM
XAVC HS 4K 3840x2160 HEVC/H.265 Long GOP
XAVC S 4K 3840x2160 AVC/H.264 Long GOP
XAVC S HD 1920x1080 AVC/H.264 Long GOP
XAVC S-I 4K 3840x2160 AVC/H.264 Intra
XAVC S-I HD 1920x1080 AVC/H.264 Intra
XAVC S-I DCI 4K 4096x2160 AVC/H.264 Intra

Custom LUT for the FX30 with the Ninja V and Resolve

Set the FX30 to output S-Log3

  1. Press the MENU button, go to 2 Main2, and enter the Log Shooting Setting.

Main Log Shooting Shooting Setting

  1. Select Log Shooting and set it to Cine EI.

CineEI Gamut

  1. Under Color Gamut, select S-Gamut3.Cine/S-Log3.

Gamut

  1. Go to Main1 menu, and select the Select LUT option.

Main1 Select LUT

  1. Under Select LUT, choose S-Log3.

S-Log3

  1. Under the Display LUT option, select Off.

LUT-ON LUT Off

Download and fix the Technical LUTs

The Sony FX30 Technical LUTs are available on their official website and can be directly downloaded following this link: Technical LUT_Standard.zip

Note that the slog3_sgamut3_cine_to_rec709.cube, slog3_sgamut3_cine_to_rec709_-1stop.cube, slog3_sgamut3_cine_to_rec709_-2stop.cube, and slog3_sgamut3_cine_to_rec709_-3stop.cube files use the [TAB] character to define the LUT size. You'll need to edit each file to replace the tab character with a space in order to load the LUTs into the Atomos Ninja V.

Original slog3_sgamut3_cine_to_rec709.cube file with [Tab]:

# HDLINK 3D LOOKUP TABLE
# BlackMagic cube from Truelight v4.0

LUT_3D_SIZE 16

0.0000 0.0000 0.0000
0.0013 0.0000 0.0000
...

Modified file slog3_sgamut3_cine_to_rec709.cube with [Space]:

# HDLINK 3D LOOKUP TABLE
# BlackMagic cube from Truelight v4.0

LUT_3D_SIZE 16

0.0000 0.0000 0.0000
0.0013 0.0000 0.0000
...

Atomos Ninja V Settings

Loading the Technical LUT

  1. Copy the slog3_sgamut3_cine_to_rec709.cube file onto the Ninja V's SD Sata Drive, then plug it into the Ninja V.
  2. Select the gear icon on the bottom right of the screen.
  3. Navigate to the LUTs tab.
  4. Choose the desired LUT slot to load the LUT, then tap on the folder icon.
  5. Select the slog3_sgamut3_cine_to_rec709.cube LUT.
  6. Navigate to the Monitor setting and select LUT.

White balance and exposure

  1. Do NOT enable any toggles under the Input tab.
  2. Enable False Colors for exposure, adjusting the exposure on the FX30 while shooting at an 18% Grey Card.
  3. Using the RGB Parade, set your White Balance while shooting at an 18% Grey Card.
  4. Record a sample footage using an X-Rite/Calibrite ColorChecker Video or a similar card for custom grading.

DaVinci Resolve Grading and LUT Creation

  1. Load the Technical LUT into Resolve by copying the file into Resolve's LUT folder, located in /Library/Application Support/Blackmagic Design/DaVinci Resolve/LUT on macOS, and C:\ProgramData\Blackmagic Design\DaVinci Resolve\Support\LUT on Windows.

  2. After copying the slog3_sgamut3_cine_to_rec709.cube Technical LUT, navigate to the Color tab. Right-click in the LUTs panel to access the contextual menu, then refresh to display the Technical LUT in the list.

  3. Under the Edit tab, import your Atomos Ninja V ProRes HQ footage and create a timeline with the footage.

  4. Set the Data Levels of each clip to Full.

Attributes Levels

  1. Under the Color tab, apply the Technical LUT to your clips, and perform your custom grading using Color Wheels, Curves, Color Wraper, etc. Note that effects and Color Space Transforms may not work well while creating LUTs.

  2. After grading, right-click on the clip, select Generate LUT, and choose 33 Point Cube, which is the maximum number of points the FX 30 allows. Save the .cube LUT.

Levels

Custom LUT in the FX30

Loading the custom LUT from memory

  1. Copy your .cube LUT onto your SD or CF card. For SD cards, the path for the LUTs is PRIVATE/SONY/PRO/LUT. For CF cards, the path is SONY/PRO/LUT.
CF root
└── SONY
    └── PRO
        └── LUT

On the SD-Card

SD root
└── private
    └── SONY
        └── PRO
            └── LUT
  1. Insert the memory card into your Sony FX30 camera. Go to the Exposure/Color pink menu.

ExposureColor

  1. Select the 5 Color/Tone menu.

ColorTone

  1. Choose Manage User LUTs.

ManageUserLUTs

  1. Select Import/Edit.

ImportEdit

  1. Choose the slot to load the LUT.

Slot

  1. Select Media.

Media

  1. Choose the media slot.

Media

  1. Select the LUT file.

Media Confirmation List

Display the Custom LUT

  1. Navigate to the Main1 menu.

Main1

  1. Enter Select LUT.

S-Log

  1. Choose your custom LUT.

SelectLUT

  1. Enable the Display LUT option.

Display LUT LUT On

Voilà! Now you can preview and output your custom LUT through HDMI and record internally in S-Gamut3.Cine/S-Log3.

OCR for VobSub2SRT in macOS

Install

brew install tesseract
brew install tesseract-lang
wget https://raw.githubusercontent.com/leonard-slass/VobSub2SRT/master/packaging/vobsub2srt.rb
sed -i '' 's/ruediger/leonard-slass/;s/git:/https:/' vobsub2srt.rb
brew install --HEAD vobsub2srt.rb

OCR

vobsub2srt --tesseract-lang spa "File.SPA"