Merge commit 'e7d6d0bf3c5cc1bc048b0ddbc169a91862568e0c'

* commit 'e7d6d0bf3c5cc1bc048b0ddbc169a91862568e0c':
  mov: Export geotag metadata fields

Conflicts:
	libavformat/mov.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/mov.c

@@ -222,6 +222,44 @@ static int mov_metadata_raw(MOVContext *c, AVIOContext *pb,
     return av_dict_set(&c->fc->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
 }
 
+static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
+{
+    char language[4] = { 0 };
+    char buf[100];
+    uint16_t langcode = 0;
+    double longitude, latitude, altitude;
+    const char *key = "location";
+
+    if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
+        return AVERROR_INVALIDDATA;
+
+    avio_skip(pb, 4); // version+flags
+    langcode = avio_rb16(pb);
+    ff_mov_lang_to_iso639(langcode, language);
+    len -= 6;
+
+    len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
+    if (len < 1)
+        return AVERROR_INVALIDDATA;
+    avio_skip(pb, 1); // role
+    len -= 1;
+
+    if (len < 14)
+        return AVERROR_INVALIDDATA;
+    longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
+    latitude  = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
+    altitude  = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
+
+    // Try to output in the same format as the ?xyz field
+    snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
+    if (*language && strcmp(language, "und")) {
+        char key2[16];
+        snprintf(key2, sizeof(key2), "%s-%s", key, language);
+        av_dict_set(&c->fc->metadata, key2, buf, 0);
+    }
+    return av_dict_set(&c->fc->metadata, key, buf, 0);
+}
+
 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
 #ifdef MOV_EXPORT_ALL_METADATA
@@ -281,6 +319,8 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return mov_metadata_raw(c, pb, atom.size, "premiere_version");
     case MKTAG( '@','P','R','Q'):
         return mov_metadata_raw(c, pb, atom.size, "quicktime_version");
+    case MKTAG( 'l','o','c','i'):
+        return mov_metadata_loci(c, pb, atom.size);
     }
 
     if (c->itunes_metadata && atom.size > 8) {