[FFmpeg-devel] [PATCH v3 1/2] avformat/utils: simplify the code and remove av_strncasecmp

Limin Wang lance.lmwang at gmail.com
Tue Dec 3 16:05:01 EET 2019


On Tue, Dec 03, 2019 at 09:43:53AM +0100, Michael Niedermayer wrote:
> On Mon, Dec 02, 2019 at 12:51:05PM +0800, lance.lmwang at gmail.com wrote:
> > From: Limin Wang <lance.lmwang at gmail.com>
> > 
> > Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> > ---
> >  libavformat/utils.c | 5 ++---
> >  1 file changed, 2 insertions(+), 3 deletions(-)
> > 
> > diff --git a/libavformat/utils.c b/libavformat/utils.c
> > index 8196442dd1..03a3705200 100644
> > --- a/libavformat/utils.c
> > +++ b/libavformat/utils.c
> > @@ -4854,11 +4854,10 @@ int ff_mkdir_p(const char *path)
> >          return -1;
> >      }
> >  
> > -    if (!av_strncasecmp(temp, "/", 1) || !av_strncasecmp(temp, "\\", 1)) {
> > +    if (*temp == '/' || *temp == '\\')
> >          pos++;
> 
> > -    } else if (!av_strncasecmp(temp, "./", 2) || !av_strncasecmp(temp, ".\\", 2)) {
> > +    else if (*temp == '.' && (*(temp+1) == '/' || *(temp+1) == '\\'))
> 
> is this really simpler ? (compared to strncmp() for example) ?
> it looks more obfuscated 
It's changed for patch#2, for the separator is defined as single
charactor. so it's more simple to compare with character.  

> 
> also not sure about the {} removial
Yes, it's unrelated cosmetics change, I'll keep it if have chance to update the patchset.

> 
> [...]
> 
> -- 
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
> 
> No human being will ever know the Truth, for even if they happen to say it
> by chance, they would not even known they had done so. -- Xenophanes



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