From 15dd7c203ba17514a75ecbcd5324eed84b585908 Mon Sep 17 00:00:00 2001
From: Mat Jordan <mat@northwestern.edu>
Date: Fri, 12 May 2023 20:10:32 +0000
Subject: [PATCH] Update format for .m3u8 A/V IIIF canvas annotation body.

---
 src/api/response/iiif/presentation-api/items.js | 7 +++++--
 test/unit/api/response/iiif/manifest.test.js    | 1 +
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/api/response/iiif/presentation-api/items.js b/src/api/response/iiif/presentation-api/items.js
index 5c0b803c..36bb0ea5 100644
--- a/src/api/response/iiif/presentation-api/items.js
+++ b/src/api/response/iiif/presentation-api/items.js
@@ -5,10 +5,13 @@ function annotationType(workType) {
 }
 
 function buildAnnotationBody(fileSet, workType) {
+  const bodyType = annotationType(workType);
   const body = {
     id: buildAnnotationBodyId(fileSet, workType),
-    type: annotationType(workType),
-    format: fileSet.mime_type,
+    type: bodyType,
+    format: isAudioVideo(bodyType)
+      ? "application/x-mpegurl"
+      : fileSet.mime_type,
     height: fileSet.height || 100,
     width: fileSet.width || 100,
   };
diff --git a/test/unit/api/response/iiif/manifest.test.js b/test/unit/api/response/iiif/manifest.test.js
index 6c298b4b..ca825e44 100644
--- a/test/unit/api/response/iiif/manifest.test.js
+++ b/test/unit/api/response/iiif/manifest.test.js
@@ -190,6 +190,7 @@ describe("A/V Work as IIIF Manifest response transformer", () => {
 
     expect(annotation.body.duration).to.eq(5.599);
     expect(annotation.body.type).to.eq("Video");
+    expect(annotation.body.format).to.eq("application/x-mpegurl");
     expect(annotation.body.id).to.eq(source.file_sets[0].streaming_url);
   });
 });