[vlc-devel] vlc's features attactive but correctness more important

[Kaarlo Räihä]

2012/1/15 zhu shi song <zhushisongzhu at yahoo.com>

>       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.
> 1、For MP4(H264+AAC) cutting , time is not correct.
> vlc  hz.mp4 --start-time=10 --stop-time=25
> --sout=#:std{access=file,mux=mp4,dst=hzcut.mp4}
> 2、For partial transcoding from TS(mpeg4) to MP4, time is not correct
> vlc  sgvideo.ts --start-time=10 --stop-time=30
> --sout=#transcode{vcodec=h264,acodec=mp4a}:std{access=file,mux=mp4,dst=sgcut.mp4}
> 3、For TS(MPEG4) cutting, time is not correct
> vlc sgvideo.ts --start-time=10 --stop-time=30
> --sout=#:std{access=file,mux=ts,dst=sgcut.ts}
> 4、For WMV2 playing, time progress control is not tallied with key frame
> position.
>      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?
>
>
As I have said earlier, multiple posts to this mailing list about same
issue won't help. They just will lead to blacklisting. And VLC doesn't give
any guarantees of correctness and it would be impossible to do so with
volunteer project like this. If you really need those issues fixed ASAP,
then hire a coder.


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