On Thursday 03 December 2015 05:51:42 am qw wrote: > JPEG has adopted many standards. There are several jpeg codec in ffmpeg, > such as mjpeg, mjpegb, ljpeg, jpegls. libjpeg is another open source of > jpeg codec.
> what's difference between mjpeg in ffmpeg and libjpeg? It's like the difference between Porsche and Ferrari. They do not share any parts, both produce cars. > Does libjpeg support all JPEG standards/algorithms? To the best of my knowledge: No, but I am not a libjpeg developer. > In libjpeg, jpeg encoder accepts quality level as input parameter, while > mjpeg uses bit rate as input parameter in ffmpeg. FFmpeg's jpeg encoder allows both bitrate and quantizer as input parameter. Carl Eugen _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
