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

[Michael Niedermayer]

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

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Frequently ignored answer#1 FFmpeg bugs should be sent to our bugtracker. User
questions about the command line tools should be sent to the ffmpeg-user ML.
And questions about how to use libav* should be sent to the libav-user ML.
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