Merge commit '0569a7e0'

* commit '0569a7e0':
  hevc: parse display orientation SEI message

Conflicts:
	libavcodec/hevc.h
	libavcodec/hevc_sei.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/hevc.c

@@ -26,6 +26,7 @@
 #include "libavutil/atomic.h"
 #include "libavutil/attributes.h"
 #include "libavutil/common.h"
+#include "libavutil/display.h"
 #include "libavutil/internal.h"
 #include "libavutil/md5.h"
 #include "libavutil/opt.h"
@@ -2339,6 +2340,20 @@ static int set_side_data(HEVCContext *s)
             stereo->flags = AV_STEREO3D_FLAG_INVERT;
     }
 
+    if (s->sei_display_orientation_present &&
+        (s->sei_anticlockwise_rotation || s->sei_hflip || s->sei_vflip)) {
+        double angle = s->sei_anticlockwise_rotation * 360 / (double) (1 << 16);
+        AVFrameSideData *rotation = av_frame_new_side_data(out,
+                                                           AV_FRAME_DATA_DISPLAYMATRIX,
+                                                           sizeof(int32_t) * 9);
+        if (!rotation)
+            return AVERROR(ENOMEM);
+
+        av_display_rotation_set((int32_t *)rotation->data, angle);
+        av_display_matrix_flip((int32_t *)rotation->data,
+                               s->sei_vflip, s->sei_hflip);
+    }
+
     return 0;
 }
 

libavcodec/hevc.h

@@ -885,6 +885,11 @@ typedef struct HEVCContext {
     int content_interpretation_type;
     int quincunx_subsampling;
 
+    /** display orientation */
+    int sei_display_orientation_present;
+    int sei_anticlockwise_rotation;
+    int sei_hflip, sei_vflip;
+
     int picture_struct;
 } HEVCContext;
 

libavcodec/hevc_sei.c

@@ -74,6 +74,21 @@ static void decode_nal_sei_frame_packing_arrangement(HEVCContext *s)
     skip_bits1(gb);             // upsampled_aspect_ratio_flag
 }
 
+static void decode_nal_sei_display_orientation(HEVCContext *s)
+{
+    GetBitContext *gb = &s->HEVClc->gb;
+
+    s->sei_display_orientation_present = !get_bits1(gb);
+
+    if (s->sei_display_orientation_present) {
+        s->sei_hflip = get_bits1(gb);     // hor_flip
+        s->sei_vflip = get_bits1(gb);     // ver_flip
+
+        s->sei_anticlockwise_rotation = get_bits(gb, 16);
+        skip_bits1(gb);     // display_orientation_persistence_flag
+    }
+}
+
 static int decode_pic_timing(HEVCContext *s)
 {
     GetBitContext *gb = &s->HEVClc->gb;
@@ -149,6 +164,9 @@ static int decode_nal_sei_message(HEVCContext *s)
         } else if (payload_type == 45) {
             decode_nal_sei_frame_packing_arrangement(s);
             return 1;
+        } else if (payload_type == 47) {
+            decode_nal_sei_display_orientation(s);
+            return 1;
         } else if (payload_type == 1){
             int ret = decode_pic_timing(s);
             av_log(s->avctx, AV_LOG_DEBUG, "Skipped PREFIX SEI %d\n", payload_type);