4 ms·
I wonder why all of the MPEG1 encoders of the day enforced a maximum of 320x240?
by cellularmitosis 6y ago
I wonder why all of the MPEG1 encoders of the day enforced a maximum of 320x240?
- giantrobot 6y agoWhile the spec allowed for outrageous settings playback wouldn't have been possible. Most hardware decoders were meant for (or derived from) VCD playback. The VCD spec covered CIF video which mean QVGA would fall into the supported macroblock rate for hardware decoders. In MPEG-1's heyday there would haven't been a lot of point in encoding presets producing content common hardware decoders couldn't handle. There were several other video codecs in the same era that didn't have hardware decode requirements. Cinepak was widely used and could be readily played on a 68030, 486, and even CD-ROM game consoles. As I recall Cinepak encoders had more knobs and dials since the output didn't need to hit a hardware decoder limitation.
- anthk 6y agoPAL/NTSC resolutions.