Handle r10k endianess atom DpxE.

Fixes playback and remuxing of r10k_full-range_big-endian.mov.

Reported, analyzed and tested by Olaf Matthes, olaf matthes gmx de

2 files changed, 22 insertions, 0 deletions

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 19ec11f968..3dee572038 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1114,6 +1114,11 @@ static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
 }
 
+static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+    return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
+}
+
 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
@@ -3363,6 +3368,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
 { MKTAG('c','o','l','r'), mov_read_colr },
 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
 { MKTAG('d','i','n','f'), mov_read_default },
+{ MKTAG('D','p','x','E'), mov_read_dpxe },
 { MKTAG('d','r','e','f'), mov_read_dref },
 { MKTAG('e','d','t','s'), mov_read_default },
 { MKTAG('e','l','s','t'), mov_read_elst },
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index bc2d9eff2b..29535cdaeb 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -1081,6 +1081,19 @@ static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
     return 0;
 }
 
+static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
+{
+    avio_wb32(pb, 12);
+    ffio_wfourcc(pb, "DpxE");
+    if (track->enc->extradata_size >= 12 &&
+        !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
+        avio_wb32(pb, track->enc->extradata[11]);
+    } else {
+        avio_wb32(pb, 1);
+    }
+    return 0;
+}
+
 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;
@@ -1580,6 +1593,9 @@ static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
              track->enc->codec_id == AV_CODEC_ID_VP6A) {
         /* Don't write any potential extradata here - the cropping
          * is signalled via the normal width/height fields. */
+    } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
+        if (track->enc->codec_tag == MKTAG('R','1','0','k'))
+            mov_write_dpxe_tag(pb, track);
     } else if (track->vos_len > 0)
         mov_write_glbl_tag(pb, track);