[FFmpeg-devel] [PATCH] ffplay: support rotated video.

[Clément Bœsch]

On Wed, May 21, 2014 at 05:18:30AM +0200, Michael Niedermayer wrote:
> On Tue, May 20, 2014 at 07:54:05PM +0200, Clément Bœsch wrote:
> > On Fri, Apr 18, 2014 at 05:43:35PM -0400, Don Moir wrote:
> > [...]
> > > >+    if (autorotate) {
> > > >+        AVDictionaryEntry *rotate_tag = av_dict_get(is->video_st->metadata, "rotate", NULL, 0);
> > > >+        if (rotate_tag) {
> > > >+            if (!strcmp(rotate_tag->value, "90")) {
> > > >+                INSERT_FILT("transpose", "1");
> > > >+            } else if (!strcmp(rotate_tag->value, "180")) {
> > > >+                INSERT_FILT("hflip", NULL);
> > > >+                INSERT_FILT("vflip", NULL);
> > > >+            } else if (!strcmp(rotate_tag->value, "270")) {
> > > >+                INSERT_FILT("transpose", "2");
> > > >+            } else {
> > > >+                INSERT_FILT("rotate", rotate_tag->value);
> > > >+            }
> > > >+        }
> > > >+    }
> > > 
> > > you might want to do this instead of stcmp. Catches values greater than 360 as well.
> > > 
> > > int rotate = atoi(rotate_tag->value) % 360;
> > > 
> > 
> > No I can't, it can be a floating value.
> 
> fmod() could be used
> 

Right, but I'm not sure it would be more reliable/simple that what i'm
currently proposing.

-- 
Clément B.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 490 bytes
Desc: not available
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20140522/22c35df3/attachment.asc>