---
 libavformat/isom.h |  3 +++
 libavformat/mov.c  | 28 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/libavformat/isom.h b/libavformat/isom.h
index bf0792c..d5ff563 100644
--- a/libavformat/isom.h
+++ b/libavformat/isom.h
@@ -135,6 +135,9 @@ typedef struct MOVStreamContext {
     int64_t track_end;    ///< used for dts generation in fragmented movie 
files
     unsigned int rap_group_count;
     MOVSbgp *rap_group;
+
+    int matrix_present;
+    int display_matrix[3][2];
 } MOVStreamContext;
 
 typedef struct MOVContext {
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 30f7f6e..934556c 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -2388,6 +2388,13 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, 
MOVAtom atom)
     sc->width = width >> 16;
     sc->height = height >> 16;
 
+    // save the matrix when it is not the identity one
+    if (display_matrix[0][1] || display_matrix[1][0] ||
+        display_matrix[2][0] || display_matrix[2][1]) {
+        sc->matrix_present = 1;
+        memcpy(sc->display_matrix, display_matrix, sizeof(int) * 3 * 2);
+    }
+
     // transform the display width/height according to the matrix
     // skip this if the display matrix is the default identity matrix
     // or if it is rotating the picture, ex iPhone 3GS
@@ -3129,6 +3136,27 @@ static int mov_read_packet(AVFormatContext *s, AVPacket 
*pkt)
                 sc->has_palette = 0;
             }
         }
+        if (sc->matrix_present) {
+            AVPacketSideData *sd, *tmp;
+
+            tmp = av_realloc_array(st->side_data,
+                                   st->nb_side_data + 1, sizeof(*tmp));
+            if (!tmp)
+                return AVERROR(ENOMEM);
+
+            st->side_data = tmp;
+            st->nb_side_data++;
+
+            sd = &st->side_data[st->nb_side_data - 1];
+            sd->type = AV_PKT_DATA_DISPLAYMATRIX;
+            sd->size = sizeof(int) * 3 * 2;
+            sd->data = av_mallocz(sd->size);
+            if (!sd->data)
+                return AVERROR(ENOMEM);
+            memcpy(sd->data, sc->display_matrix, sd->size);
+
+            sc->matrix_present = 0;
+        }
 #if CONFIG_DV_DEMUXER
         if (mov->dv_demux && sc->dv_audio_container) {
             avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
-- 
1.8.3.4 (Apple Git-47)

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