2018-01-28 18:38 GMT+01:00 Cecil Westerhof <ce...@decebal.nl>: > I need to upload a set of videos, but before I do that I need to > shrink them. But I get a very strange result. Of-course the preset > veryfast is faster as faster, fast, medium, slow, slower and veryslow. > But the strange thing is that it also create a smaller version of the > file. My original file is 733.8 MB. It is a mts file I also convert to > mp4. The results: > |-----------+-------+------| > | preset | size | time | > |-----------+-------+------| > | veryslow | 83.8 | 52 | > | slower | 94.6 | 27 | > | slow | 100.2 | 15 | > | medium | 109.0 | 13 | > | fast | 117.7 | 9 | > | faster | 106.2 | 7 | > | veryfast | 83.2 | 5 | > | superfast | 177.4 | 4 | > | ultrafast | 328.5 | 3 | > |-----------+-------+------|
While this is not the x264-user mailing list, I'd like to comment that it seems to be a common misconception today that the quality setting of a video encoder is the only thing affecting the quality of the output file - this is not true. You may get smaller files with faster encoding but they are expected to be of worse quality. Since you did not specify a bitrate, you cannot expect a specific output file size. And if you need smaller files, but the encoding time is not your biggest need, you should specify a different quality setting. (Since your FFmpeg version is antique, you may of course just have found a bug.) Carl Eugen _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".