a prototype #video #codec implementation for videoconferencing
on 02023-08-09#Nayuki’s #FLAC #audio #codec implementation in 200loc for the encoder and 300loc for the decoder, in Java and Python. #small-is-beautiful #DSP
on 02023-08-09discussion of Dominic Szablewski’s #qoa #audio #DSP #codec. He comments that it encodes 10× faster and decodes 7× faster than Opus. It also encodes 5.7× faster than ffmpeg mp3.
on 02023-08-09my calculations about Dominic Szablewski’s #qoa #audio #DSP #codec #performance: something like 400 32-bit integer instructions per sample
on 02023-08-09The #ADPCM #audio #codec has problems in #Godot importer for the #WAV #file-format, but apparently it’s still reasonably popular.
on 02023-08-09Dominic Szablewski’s #audio #DSP #codec #file-format "qoa" for fast, lossy #compression: “[Quite OK Audio] is fast. It decodes audio 3x faster than Ogg-Vorbis, while offering better quality and compression (278 kbits/s for 44khz stereo) than ADPCM. QOA is simple. The reference en-/decoder fits in about 400 lines of C. The file format specification is a single page PDF.” This might be worthwhile for low-CPU-power audio recorders and maybe the Zorzpad, especially for games. Now supported systemwide in SerenityOS. Based on 4-tap linear prediction? With the weights varying over time?
on 02023-08-09discussion of #MP3 and #MP4 and #video #codec stuff
on 02022-12-28"AngelPotion" was a #video #codec that was a slight hack of #DivX
on 02022-12-28