<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div> I have tested several functions of VLC. Transcoding,partial transcoding, partial cutting without reencoding are very attractive and make VLC so uniqure among media players. But unfortunately, there are always some errors existing in these functions. </div><div>1、For MP4(H264+AAC) cutting , time is not correct.<br></div><div>vlc hz.mp4 --start-time=10 --stop-time=25 --sout=#:std{access=file,mux=mp4,dst=hzcut.mp4}</div><div>2、For partial transcoding from TS(mpeg4) to MP4, time is not correct</div><div>vlc sgvideo.ts --start-time=10 --stop-time=30 --sout=#transcode{vcodec=h264,acodec=mp4a}:std{access=file,mux=mp4,dst=sgcut.mp4}</div><div>3、For TS(MPEG4) cutting, time is not correct</div><div>vlc sgvideo.ts --start-time=10 --stop-time=30
--sout=#:std{access=file,mux=ts,dst=sgcut.ts}</div><div>4、For WMV2 playing, time progress control is not tallied with key frame position.</div><div> These flaws have a greatly reduced quality of vlc. I think we should pay attention to not only adding more features to VLC, but also its correctness of every feature. We don't need to make quantity instead of quality. Compared with other media players, the advanced features of VLC are rich and attractive enough. If we don't utilize them correctly, of what use are these advanced features?</div><div><br></div><div> <br></div><div><br></div></div></body></html>