Merge commit 'e2d50fc2'

* commit 'e2d50fc2':
  avplay: Add support for rotated video

Conflicts:
	configure
	doc/ffplay.texi
	ffplay.c

See: 08c51e12Merged-by: Michael Niedermayer <michaelni@gmx.at>

doc/ffplay.texi

@@ -161,7 +161,7 @@ Force a specific video decoder.
 Force a specific subtitle decoder.
 
 @item -autorotate
-Automatically rotate the video according to presentation metadata. Enabled by
+Automatically rotate the video according to file metadata. Enabled by
 default, use @option{-noautorotate} to disable it.
 
 @item -framedrop

ffplay.c

@@ -32,6 +32,7 @@
 
 #include "libavutil/avstring.h"
 #include "libavutil/colorspace.h"
+#include "libavutil/display.h"
 #include "libavutil/mathematics.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/imgutils.h"
@@ -2017,6 +2018,9 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
 
     if (autorotate) {
         AVDictionaryEntry *rotate_tag = av_dict_get(is->video_st->metadata, "rotate", NULL, 0);
+        uint8_t* displaymatrix = av_stream_get_side_data(is->video_st,
+                                                         AV_PKT_DATA_DISPLAYMATRIX, NULL);
+
         if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) {
             if (!strcmp(rotate_tag->value, "90")) {
                 INSERT_FILT("transpose", "clock");
@@ -2030,6 +2034,16 @@ static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const c
                 snprintf(rotate_buf, sizeof(rotate_buf), "%s*PI/180", rotate_tag->value);
                 INSERT_FILT("rotate", rotate_buf);
             }
+        } else if (displaymatrix) {
+            double rot = av_display_rotation_get((int32_t*) displaymatrix);
+            if (rot < -135 || rot > 135) {
+                INSERT_FILT("vflip", NULL);
+                INSERT_FILT("hflip", NULL);
+            } else if (rot < -45) {
+                INSERT_FILT("transpose", "dir=clock");
+            } else if (rot > 45) {
+                INSERT_FILT("transpose", "dir=cclock");
+            }
         }
     }