avformat/matroska: Move ff_matroska_video_stereo_plane to demuxer

Only used there.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavformat/matroska.c

@@ -146,12 +146,6 @@ const char * const ff_matroska_video_stereo_mode[MATROSKA_VIDEO_STEREOMODE_TYPE_
     "block_rl",
 };
 
-const char * const ff_matroska_video_stereo_plane[MATROSKA_VIDEO_STEREO_PLANE_COUNT] = {
-    "left",
-    "right",
-    "background",
-};
-
 int ff_mkv_stereo3d_conv(AVStream *st, MatroskaVideoStereoModeType stereo_mode)
 {
     AVStereo3D *stereo;

libavformat/matroska.h

@@ -387,7 +387,6 @@ extern const CodecTags ff_mkv_codec_tags[];
 extern const CodecTags ff_webm_codec_tags[];
 extern const AVMetadataConv ff_mkv_metadata_conv[];
 extern const char * const ff_matroska_video_stereo_mode[MATROSKA_VIDEO_STEREOMODE_TYPE_NB];
-extern const char * const ff_matroska_video_stereo_plane[MATROSKA_VIDEO_STEREO_PLANE_COUNT];
 
 /* AVStream Metadata tag keys for WebM Dash Manifest */
 #define INITIALIZATION_RANGE "webm_dash_manifest_initialization_range"

libavformat/matroskadec.c

@@ -824,6 +824,12 @@ static const CodecMime mkv_mime_tags[] = {
     {""                           , AV_CODEC_ID_NONE}
 };
 
+static const char * const matroska_video_stereo_plane[MATROSKA_VIDEO_STEREO_PLANE_COUNT] = {
+    "left",
+    "right",
+    "background",
+};
+
 static const char *const matroska_doctypes[] = { "matroska", "webm" };
 
 /*
@@ -2991,7 +2997,7 @@ static int matroska_parse_tracks(AVFormatContext *s)
                 if (planes[j].type >= MATROSKA_VIDEO_STEREO_PLANE_COUNT)
                     continue;
                 snprintf(buf, sizeof(buf), "%s_%d",
-                         ff_matroska_video_stereo_plane[planes[j].type], i);
+                         matroska_video_stereo_plane[planes[j].type], i);
                 for (k=0; k < matroska->tracks.nb_elem; k++)
                     if (planes[j].uid == tracks[k].uid && tracks[k].stream) {
                         av_dict_set(&tracks[k].stream->metadata,