SD Normal Quality ffmpeg -i "input_video" -c:v mpeg2video -b:v 4M -refs 1 -bf 0 -c:a ac3 -b:a 192k -async 1 "output.mpg" For audio simply use MPEG 2 (mp2) audio as this will work with most high end encoders.įor a single pass mpeg1 ffmpeg -i "input_file" -vcodec mpeg1video -acodec mp2 "output_file.mpeg"įor a two pass mpeg1 encoding ffmpeg -i "input_video" -pass 1 -f mpeg1video -an -passlogfile log_file "output_file.mpeg"įfmpeg -i "input_video" -pass 2 -f mpeg1video -acodec mp2 -passlogfile log_file "output_file.mpeg"įor an optimized two pass mpeg1 encoding ffmpeg -i "input_video" -pass 1 -f mpeg1video -b 750000 -s 320x240 -an -passlogfile log_file "output_file.mpeg"įfmpeg -i "input_video" -pass 2 -f mpeg1video -b 750000 -s 320x240 -acodec mp2 -ab 128000 -passlogfile log_file "output_file.mpeg" There is no audio encoder for MPEG 1 audio, although there is a decoder. Comparative to MPEG2, MPEG1 will generally out perform MPEG2 at lower bit rates, though MPEG4 should out perform MPEG1. MPEG1 is a low bit rate format, designed to be used on CD running at a rate of less than 1.5Mb/s. So depending on the setting you use, it can be processor intense to encode, but should be fairly light to decode.įFMPEG Guide Usages MPEG1 The basic premise of the Moving Picture Expert Group, is that encoding is done by a few powerful machines and decoding will be done by many weaker systems. Please read through usages to help you decided which are the best settings for you usage. MPEG's can be used for all levels of use but understanding how the different formats work will help you decide which is best suited for you needs. Operating since 1988 and shaping the development of the entire industry. The Moving Pictures Experts Group, is the fore most group on defining and implementing video standards through out the film industry.
0 Comments
Leave a Reply. |