Encoding Quick Over View
- Load video.
- Cut/edit out undesired parts.
- Crop the frame. Don't render black borders and trash.
- Balance luma levels.
- Balance chroma levels and white balance.
- Run smooth, blur, sharpening, denoise type cleaning filters if needed.
- Add subtitles if needed. Make sure subs are clear and readable.
- Balance the audio. Don't encode something in the mud. It will only
make it worse. Likewise, don't blindly increase the volume until it
clips. It will sound worse than trash. Use a good normalization method.
Try to stay away from compression as that will make the audio sound funny.
- Set audio conversion if needed.
- Set audio compression. Never use mp3 "joint stereo" mode. It will mix
the lower frequencies in the name of "compression" and actually make it
sound worse. Use normal "stereo" mode.
- Set video compression.
Keep the compression levels set so that the episode comes out an even
fraction of a CD. If you go over the size, START OVER AND DO IT RIGHT.
Even though a "good" CD will have an overburn section, it is typically
only 1 to 2 megabytes. Not all discs have clean dye at the very edge,
either. This could lead to faulty data writes.
Manual bit rate calculations. These are a bit more complicated so pay
attention. Given: CD_Size=700m, desired size is 1/4 CD, time is 20m15s
(20m*60s+15s=1215s total time). Since CD's are measured in megabytes and
we need kilobytes, 1024 is used to multiply it out.
total = ( (CD_megs*1024/File_Size_Fraction) / Seconds) * 8 = total bit rate
total = ( (700*1024/4) / 1215 ) * 8 = 1179kbit/sec (rounded)
Since this is total episode bit rate (video+audio+overhead), the rest
needs to be subtraced out to get the video rate. Audio encoding rate will
be 160kbit/sec for this example.
video = 1179 - 160 = 1019kbit/sec (rounded)
Since there will be some overhead, take 1019 down to 1818 or 1017 to
get the proper file size. Unfortunately, this is more determined by
experimentation than mathematics. The container will have some specific
overhead, but more often the codec will have trouble compressing the video
and will come out on the large side. Each codec and raw video is
Quick size list in bytes. This is generated by multiplying the size of a
CD (700megs typical) by 1024*1024. Simple eh? There are combinations
that can be used, but the byte count should not exceed the entire disc
size. Also take into count block sizes of the CD when creating multiple
files per disc.
1: 700m = 734,003,200
2: 350m = 367,001,600
3: 233m = 244,667,733
4: 175m = 183,500,800
5: 140m = 146,800,640
6: 116m = 122,333,866
7: 100m = 104,857,600
8: 87m = 91,750,400
- Start the encode and come back later.