From 61824c1f7d76f8a46e4db398f0835138ff410915 Mon Sep 17 00:00:00 2001
From: Ylva Selling <ylva.selling@gmail.com>
Date: Fri, 13 Jan 2023 12:16:28 -0500
Subject: [PATCH] Add some initialization values, print meta data and get
 resolution of video

---
 .../src/tileprovider/ffmpegtileprovider.cpp   | 34 +++++++++++++++++++
 .../src/tileprovider/ffmpegtileprovider.h     |  6 ++--
 2 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.cpp b/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.cpp
index c9dba5460b..1b1e5e571f 100644
--- a/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.cpp
+++ b/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.cpp
@@ -150,6 +150,10 @@ FfmpegTileProvider::FfmpegTileProvider(const ghoul::Dictionary& dictionary) {
 Tile FfmpegTileProvider::tile(const TileIndex& tileIndex) {
     ZoneScoped
 
+    if (!_isInitialized) {
+        return Tile();
+    }
+
     // Look for tile in cache
     cache::ProviderTileKey key = { tileIndex, _prevVideoTime }; // TODO: Improve caching with a better id
     cache::MemoryAwareTileCache* tileCache =
@@ -577,6 +581,36 @@ void FfmpegTileProvider::internalInitialize() {
     //Observe video parameters
     mpv_observe_property(_mpvHandle, 0, "video-params", MPV_FORMAT_NODE);
 
+    // Print meta data
+    mpv_node node;
+    mpv_get_property(_mpvHandle, "metadata", MPV_FORMAT_NODE, &node);
+    if (node.format == MPV_FORMAT_NODE_MAP) {
+        for (int n = 0; n < node.u.list->num; n++) {
+            if (node.u.list->values[n].format == MPV_FORMAT_STRING) {
+                LINFO(node.u.list->values[n].u.string);
+            }
+        }
+    }
+    else {
+        LWARNING("No meta data could be read");
+    }
+
+    // Get resolution of video
+    int64_t width, height = 0;
+    result = mpv_get_property(_mpvHandle, "width", MPV_FORMAT_INT64, &width);
+    int result2 = mpv_get_property(_mpvHandle, "height", MPV_FORMAT_INT64, &height);
+    if (!checkMpvError(result) || !checkMpvError(result2))
+    {
+        LWARNING("Could not load video resolution");
+    }
+
+    if (width > 0 && height > 0) {
+        _resolution = { width, height };
+    }
+    else {
+        LWARNING("Invalid video resolution");
+    }
+
     //Create FBO to render video into
     createFBO(_resolution.x, _resolution.y);
 
diff --git a/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.h b/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.h
index a95b9433ab..327b2e941a 100644
--- a/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.h
+++ b/modules/globebrowsing/src/tileprovider/ffmpegtileprovider.h
@@ -86,10 +86,10 @@ private:
     glm::ivec2 _resolution = { 2048, 1024 };
 
     // libmpv
-    mpv_handle* _mpvHandle;
-    mpv_render_context* _mpvRenderContext;
-    GLuint _fbo = 0;
+    mpv_handle* _mpvHandle = nullptr;
+    mpv_render_context* _mpvRenderContext = nullptr;
     ghoul::opengl::Texture* _frameTexture = nullptr;
+    GLuint _fbo = 0;
     TileTextureInitData::HashKey _frameTextureHashKey;
 };