Automatic descriptions support

Author: angrave

ClassTranscribeServer/Controllers/MediaController.cs

@@ -76,7 +76,9 @@ public async Task<ActionResult<MediaDTO>> GetMedia(string id)
                 {
                     Id = t.Id,
                     Path = t.File != null ? t.File.Path : null,
-                    Language = t.Language
+                    Language = t.Language,
+                    TranscriptionType = (int) t.TranscriptionType,
+                    Label = String.IsNullOrWhiteSpace( t.Label ) ? "" : t.Label
                 }).ToList(),
                 Video = new VideoDTO
                 {

ClassTranscribeServer/Controllers/PlaylistsController.cs

@@ -169,7 +169,11 @@ public async Task<ActionResult<IEnumerable<PlaylistDTO>>> GetPlaylists2(string o
                         Id = t.Id,
                         Path = t.File != null ? t.File.Path : null,
                         SrtPath = t.SrtFile != null ? t.SrtFile.Path : null,
-                        Language = t.Language
+                        Language = t.Language,
+                        Label = t.Label,
+                        SourceLabel = t.SourceLabel,
+                        TranscriptionType = (int) t.TranscriptionType
+
                     }).ToList()
                 }).ToList()
             }).ToList();
@@ -453,6 +457,11 @@ public class TranscriptionDTO
         public string Path { get; set; }
         public string SrtPath { get; set; }
 
+        public int TranscriptionType { get; set;  } // 0=Caption 1=Description
+
+        public String Label { get; set; }
+
+        public String SourceLabel { get; set; } // where did this transcription originate?
         public string Language { get; set; }
     }
 

ClassTranscribeServer/Controllers/TaskController.cs

@@ -11,6 +11,7 @@
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using static ClassTranscribeDatabase.CommonUtils;
 
 namespace ClassTranscribeServer.Controllers
 {
@@ -47,23 +48,70 @@ public async Task<ActionResult> UpdateSceneData(string videoId,  JObject scene)
         {
             string sceneAsString = scene.ToString(0);
             Video video = await _context.Videos.FindAsync(videoId);
-            if(video.HasSceneObjectData())
+            var existingScenes = video.HasSceneObjectData();
+
+            TextData data;
+            if (existingScenes)
             {
-                TextData data = await _context.TextData.FindAsync(video.SceneObjectDataId);
+                data = await _context.TextData.FindAsync(video.SceneObjectDataId);
                 data.Text = sceneAsString;
             } else
             {
-                TextData data = new TextData();
-                data.Text = sceneAsString;
+                data = new TextData() { Text = sceneAsString };
                 _context.TextData.Add(data);
                 video.SceneObjectDataId = data.Id;
                 Trace.Assert(!string.IsNullOrEmpty(data.Id));
             }
-           
+
+            createDescriptionsIfNone(video, data);
             await _context.SaveChangesAsync();
             return Ok();
         }
-         [HttpGet("GetPhraseHints")]
+        private void createDescriptionsIfNone(Video v, TextData scenedata)
+        {
+            JArray scenes = scenedata.getAsJSON()["Scenes"] as JArray;
+            if (scenes == null || v == null || v.Id == null)
+            {
+                return;
+            }
+
+            var exists = v.Transcriptions.Exists(t=>t.TranscriptionType == TranscriptionType.TextDescription);
+            if(exists)
+            {
+                _logger.LogInformation($"{v.Id}: already has descriptions (skipping)");
+                return;
+            }
+            _logger.LogInformation($"{v.Id}: Creating basic descriptions");
+            var captions = new List<Caption>();
+
+            int index = 0;
+            foreach (JObject scene in scenes)
+            {
+                var c = new Caption
+                {
+                    Index = index++,
+                    Begin = TimeSpan.Parse(scene["start"].ToString()),
+                    End = TimeSpan.Parse(scene["end"].ToString()),
+                    CaptionType = CaptionType.AudioDescription,
+                    Text = scene["phrases"]?.ToString()
+                };
+            }
+            _logger.LogInformation($"{v.Id}: {index} entries added");
+            var transcription = new Transcription()
+            {
+                Captions = captions,
+                TranscriptionType = TranscriptionType.TextDescription,
+                VideoId = v.Id,
+                Language = Languages.ENGLISH_AMERICAN,
+                Label = "Description",
+                SourceLabel = "ClassTranscribe",
+                SourceInternalRef = "ClassTranscribe/Scene-OCR"
+            };
+
+            _context.Add(transcription);
+        }
+
+            [HttpGet("GetPhraseHints")]
         public async Task<string> GetPhraseHints(string videoId) {
              Video video = await _context.Videos.FindAsync(videoId);
              if(video.HasPhraseHints()) {
@@ -74,6 +122,8 @@ public async Task<string> GetPhraseHints(string videoId) {
              return video.PhraseHints ?? "";
         }
 
+
+
         [HttpGet("GetSceneData")]
         public async Task<ActionResult<Object>> GetSceneData(string videoId) {
              Video video = await _context.Videos.FindAsync(videoId);