bskyweb: add video objects to jsonld SEO (#10814)

bskyweb/cmd/bskyweb/embedmeta.go

@@ -4,10 +4,9 @@ import (
 	appbsky "github.com/bluesky-social/indigo/api/bsky"
 )
 
-// Helpers for extracting Open Graph metadata from post embeds. These feed
+// Helpers for extracting Open Graph metadata from post embeds. og:video
-// og:* / twitter:* meta tags only; the schema.org JSON-LD output lives in
+// shares findVideoEmbed with the JSON-LD VideoObject path in jsonld.go so
-// jsonld.go. og:video has its own path because JSON-LD does not yet emit
+// the two outputs cannot drift.
-// VideoObject (deferred — needs `duration` from the appview).
 
 // videoMeta holds og:video meta tag data.
 type videoMeta struct {
@@ -21,17 +20,7 @@ type videoMeta struct {
 // extractVideoMeta returns og:video metadata, or the zero value if there's
 // no video embed. Respects embedHidden so og:video and og:image stay in sync.
 func extractVideoMeta(pv *appbsky.FeedDefs_PostView, embedHidden bool) videoMeta {
-	if pv == nil || pv.Embed == nil || embedHidden {
+	v := findVideoEmbed(pv, embedHidden)
-		return videoMeta{}
-	}
-	var v *appbsky.EmbedVideo_View
-	if pv.Embed.EmbedVideo_View != nil {
-		v = pv.Embed.EmbedVideo_View
-	} else if pv.Embed.EmbedRecordWithMedia_View != nil &&
-		pv.Embed.EmbedRecordWithMedia_View.Media != nil &&
-		pv.Embed.EmbedRecordWithMedia_View.Media.EmbedVideo_View != nil {
-		v = pv.Embed.EmbedRecordWithMedia_View.Media.EmbedVideo_View
-	}
 	if v == nil || v.Playlist == "" {
 		return videoMeta{}
 	}

bskyweb/cmd/bskyweb/jsonld.go

@@ -59,6 +59,7 @@ type discussionForumPosting struct {
 	Text            string            `json:"text,omitempty"`
 	Image           []string          `json:"image,omitempty"`
 	ThumbnailURL    string            `json:"thumbnailUrl,omitempty"`
+	Video           *videoObject      `json:"video,omitempty"`
 	DatePublished   string            `json:"datePublished,omitempty"`
 	InteractionStat []interactionStat `json:"interactionStatistic,omitempty"`
 	CommentCount    *int64            `json:"commentCount,omitempty"`
@@ -67,6 +68,20 @@ type discussionForumPosting struct {
 	SharedContent   *sharedContent    `json:"sharedContent,omitempty"`
 }
 
+// videoObject is the schema.org VideoObject shape for video embeds.
+// duration is omitted because the appview does not expose it.
+type videoObject struct {
+	Type         string `json:"@type"`
+	Name         string `json:"name,omitempty"`
+	Description  string `json:"description,omitempty"`
+	ThumbnailURL string `json:"thumbnailUrl,omitempty"`
+	UploadDate   string `json:"uploadDate,omitempty"`
+	ContentURL   string `json:"contentUrl,omitempty"`
+	EmbedURL     string `json:"embedUrl,omitempty"`
+	Width        int64  `json:"width,omitempty"`
+	Height       int64  `json:"height,omitempty"`
+}
+
 // comment is the schema.org Comment shape used in
 // DiscussionForumPosting.comment[]. The comment property does not accept
 // DiscussionForumPosting, so replies map to Comment.
@@ -78,6 +93,7 @@ type comment struct {
 	Text          string       `json:"text,omitempty"`
 	Image         []string     `json:"image,omitempty"`
 	ThumbnailURL  string       `json:"thumbnailUrl,omitempty"`
+	Video         *videoObject `json:"video,omitempty"`
 	DatePublished string       `json:"datePublished,omitempty"`
 }
 
@@ -127,6 +143,31 @@ func bskyPostURLFromATURI(handle, atURI string) string {
 	return bskyPostURL(handle, parsed.RecordKey().String())
 }
 
+// bskyPostURLFromATURIWithDIDFallback returns the handle-form post URL
+// when the handle is usable, otherwise falls back to the DID-form URL
+// derived from the AT-URI's authority. Returns "" only when the AT-URI is
+// unparseable or has no record key. Used for nested fields (e.g.
+// VideoObject.embedUrl) where omitting on handle.invalid would weaken the
+// emitted structured data.
+func bskyPostURLFromATURIWithDIDFallback(handle, atURI string) string {
+	parsed, err := syntax.ParseATURI(atURI)
+	if err != nil {
+		return ""
+	}
+	rkey := parsed.RecordKey().String()
+	if rkey == "" {
+		return ""
+	}
+	if url := bskyPostURL(handle, rkey); url != "" {
+		return url
+	}
+	did := parsed.Authority().String()
+	if did == "" {
+		return ""
+	}
+	return fmt.Sprintf("https://bsky.app/profile/%s/post/%s", did, rkey)
+}
+
 // bskyProfileURL returns the canonical handle-form profile URL, or "" if
 // the handle is unusable.
 func bskyProfileURL(handle string) string {
@@ -205,6 +246,64 @@ func galleryThumbs(items []*appbsky.EmbedGallery_View_Items_Elem) []string {
 	return urls
 }
 
+// findVideoEmbed returns the post's video embed view, or nil if there is
+// none or embeds are hidden. Shared with extractVideoMeta so og:video and
+// JSON-LD VideoObject stay in sync.
+func findVideoEmbed(pv *appbsky.FeedDefs_PostView, embedHidden bool) *appbsky.EmbedVideo_View {
+	if pv == nil || pv.Embed == nil || embedHidden {
+		return nil
+	}
+	if pv.Embed.EmbedVideo_View != nil {
+		return pv.Embed.EmbedVideo_View
+	}
+	if pv.Embed.EmbedRecordWithMedia_View != nil &&
+		pv.Embed.EmbedRecordWithMedia_View.Media != nil &&
+		pv.Embed.EmbedRecordWithMedia_View.Media.EmbedVideo_View != nil {
+		return pv.Embed.EmbedRecordWithMedia_View.Media.EmbedVideo_View
+	}
+	return nil
+}
+
+// buildVideoObject returns a VideoObject for the post's video embed, or
+// nil if there's no usable video. Falls back to "Video by @<handle>" when
+// alt text is empty so name is always populated (Google requires it).
+// description falls back to name for the same reason.
+func buildVideoObject(pv *appbsky.FeedDefs_PostView, embedURL, postText string, embedHidden bool) *videoObject {
+	v := findVideoEmbed(pv, embedHidden)
+	if v == nil || v.Playlist == "" {
+		return nil
+	}
+	vo := &videoObject{
+		Type:       "VideoObject",
+		ContentURL: v.Playlist,
+		EmbedURL:   embedURL,
+		// uploadDate uses IndexedAt (not record CreatedAt) for consistency
+		// with DiscussionForumPosting.datePublished on the parent post.
+		UploadDate: pv.IndexedAt,
+	}
+	if v.Thumbnail != nil {
+		vo.ThumbnailURL = *v.Thumbnail
+	}
+	switch {
+	case v.Alt != nil && *v.Alt != "":
+		vo.Name = *v.Alt
+	case pv.Author != nil && pv.Author.Handle != "" && pv.Author.Handle != "handle.invalid":
+		vo.Name = "Video by @" + pv.Author.Handle
+	default:
+		vo.Name = "Video on Bluesky"
+	}
+	if postText != "" {
+		vo.Description = postText
+	} else {
+		vo.Description = vo.Name
+	}
+	if v.AspectRatio != nil {
+		vo.Width = v.AspectRatio.Width
+		vo.Height = v.AspectRatio.Height
+	}
+	return vo
+}
+
 // extractQuotedPostURL returns the canonical URL of a quoted post, or ""
 // if the embed is blocked / not-found / detached / a non-post record.
 func extractQuotedPostURL(pv *appbsky.FeedDefs_PostView) string {
@@ -394,14 +493,18 @@ func buildPostNode(pv *appbsky.FeedDefs_PostView, replies []*appbsky.FeedDefs_Th
 		thumb = images[0]
 	}
 
+	postURL := bskyPostURLFromATURIWithDIDFallback(pv.Author.Handle, pv.Uri)
+	postText := postRecordText(pv)
+
 	node := discussionForumPosting{
 		Type:            "DiscussionForumPosting",
-		URL:             bskyPostURLFromATURI(pv.Author.Handle, pv.Uri),
+		URL:             postURL,
 		Identifier:      pv.Uri,
 		Author:          buildAuthor(pv.Author),
-		Text:            postRecordText(pv),
+		Text:            postText,
 		Image:           images,
 		ThumbnailURL:    thumb,
+		Video:           buildVideoObject(pv, postURL, postText, embedHidden),
 		DatePublished:   pv.IndexedAt,
 		InteractionStat: buildPostStats(pv),
 	}
@@ -464,14 +567,17 @@ func buildReplyNode(pv *appbsky.FeedDefs_PostView, hideLabels map[string]bool) c
 	if len(images) > 0 {
 		thumb = images[0]
 	}
+	postURL := bskyPostURLFromATURIWithDIDFallback(pv.Author.Handle, pv.Uri)
+	postText := postRecordText(pv)
 	return comment{
 		Type:          "Comment",
-		URL:           bskyPostURLFromATURI(pv.Author.Handle, pv.Uri),
+		URL:           postURL,
 		Identifier:    pv.Uri,
 		Author:        buildAuthor(pv.Author),
-		Text:          postRecordText(pv),
+		Text:          postText,
 		Image:         images,
 		ThumbnailURL:  thumb,
+		Video:         buildVideoObject(pv, postURL, postText, embedHidden),
 		DatePublished: pv.IndexedAt,
 	}
 }

bskyweb/cmd/bskyweb/jsonld_test.go

@@ -1204,3 +1204,339 @@ func TestBuildProfileJSONLD_HasPartAuthorReviewedBy(t *testing.T) {
 		t.Errorf("verifier identifier wrong: %v", rb[0])
 	}
 }
+
+// videoEmbedOpts configures withVideoFull. Zero values mean "not set".
+type videoEmbedOpts struct {
+	thumbnail   string
+	playlist    string
+	alt         string
+	width       int64
+	height      int64
+	hasAspect   bool
+	recordMedia bool // nest under EmbedRecordWithMedia_View.Media
+}
+
+// withVideoFull installs a fully-specified video embed for VideoObject tests.
+func withVideoFull(o videoEmbedOpts) func(*appbsky.FeedDefs_PostView) {
+	return func(pv *appbsky.FeedDefs_PostView) {
+		v := &appbsky.EmbedVideo_View{Playlist: o.playlist}
+		if o.thumbnail != "" {
+			v.Thumbnail = strPtr(o.thumbnail)
+		}
+		if o.alt != "" {
+			v.Alt = strPtr(o.alt)
+		}
+		if o.hasAspect {
+			v.AspectRatio = &appbsky.EmbedDefs_AspectRatio{Width: o.width, Height: o.height}
+		}
+		if o.recordMedia {
+			pv.Embed = &appbsky.FeedDefs_PostView_Embed{
+				EmbedRecordWithMedia_View: &appbsky.EmbedRecordWithMedia_View{
+					Record: &appbsky.EmbedRecord_View{
+						Record: &appbsky.EmbedRecord_View_Record{
+							EmbedRecord_ViewRecord: &appbsky.EmbedRecord_ViewRecord{
+								Uri: "at://did:plc:quoted/app.bsky.feed.post/q",
+								Cid: "bafy-quoted",
+								Author: &appbsky.ActorDefs_ProfileViewBasic{
+									Did:    "did:plc:quoted",
+									Handle: "quoted.bsky.social",
+								},
+								IndexedAt: "2024-01-01T00:00:00Z",
+							},
+						},
+					},
+					Media: &appbsky.EmbedRecordWithMedia_View_Media{
+						EmbedVideo_View: v,
+					},
+				},
+			}
+		} else {
+			pv.Embed = &appbsky.FeedDefs_PostView_Embed{
+				EmbedVideo_View: v,
+			}
+		}
+	}
+}
+
+func TestBuildPostJSONLD_WithVideoObject(t *testing.T) {
+	thumb := "https://cdn.bsky.app/img/video_thumbnail/plain/did:plc:alice/v@jpeg"
+	playlist := "https://video.bsky.app/v/did:plc:alice/v/playlist.m3u8"
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "watch this",
+		withVideoFull(videoEmbedOpts{
+			thumbnail: thumb, playlist: playlist, alt: "A trip to the park",
+			hasAspect: true, width: 16, height: 9,
+		}))
+	canonical := "https://bsky.app/profile/alice.bsky.social/post/abc123"
+	out, err := buildPostJSONLD(pv, nil, canonical, hideEmbedLabels, hideReplyLabels)
+	if err != nil {
+		t.Fatal(err)
+	}
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	video, ok := main["video"].(map[string]any)
+	if !ok {
+		t.Fatalf("video missing from mainEntity")
+	}
+	if video["@type"] != "VideoObject" {
+		t.Errorf("@type = %v, want VideoObject", video["@type"])
+	}
+	if video["name"] != "A trip to the park" {
+		t.Errorf("name = %v, want alt text", video["name"])
+	}
+	if video["description"] != "watch this" {
+		t.Errorf("description = %v, want post text", video["description"])
+	}
+	if video["thumbnailUrl"] != thumb {
+		t.Errorf("thumbnailUrl = %v, want %v", video["thumbnailUrl"], thumb)
+	}
+	if video["uploadDate"] != pv.IndexedAt {
+		t.Errorf("uploadDate = %v, want %v", video["uploadDate"], pv.IndexedAt)
+	}
+	if video["contentUrl"] != playlist {
+		t.Errorf("contentUrl = %v, want %v", video["contentUrl"], playlist)
+	}
+	if video["embedUrl"] != canonical {
+		t.Errorf("embedUrl = %v, want %v", video["embedUrl"], canonical)
+	}
+	if w, _ := video["width"].(float64); int64(w) != 16 {
+		t.Errorf("width = %v, want 16", video["width"])
+	}
+	if h, _ := video["height"].(float64); int64(h) != 9 {
+		t.Errorf("height = %v, want 9", video["height"])
+	}
+	// post thumbnailUrl should equal the video thumb (byte-equal og:image).
+	if main["thumbnailUrl"] != thumb {
+		t.Errorf("post thumbnailUrl = %v, want %v", main["thumbnailUrl"], thumb)
+	}
+}
+
+func TestBuildPostJSONLD_VideoNameFallback(t *testing.T) {
+	// No alt text -> "Video by @<handle>".
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "no alt here",
+		withVideoFull(videoEmbedOpts{
+			playlist: "https://video.bsky.app/p.m3u8",
+		}))
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	video, ok := main["video"].(map[string]any)
+	if !ok {
+		t.Fatalf("video missing")
+	}
+	if video["name"] != "Video by @alice.bsky.social" {
+		t.Errorf("name fallback = %v", video["name"])
+	}
+}
+
+func TestBuildPostJSONLD_VideoNameFallbackHandleInvalid(t *testing.T) {
+	// handle.invalid + no alt -> generic fallback.
+	pv := makePostView("handle.invalid", "did:plc:alice", "abc123", "x",
+		withVideoFull(videoEmbedOpts{
+			playlist: "https://video.bsky.app/p.m3u8",
+		}))
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	video := main["video"].(map[string]any)
+	if video["name"] != "Video on Bluesky" {
+		t.Errorf("name fallback = %v, want generic", video["name"])
+	}
+}
+
+func TestBuildPostJSONLD_VideoDescriptionFallback(t *testing.T) {
+	// Empty post text -> description falls back to name so Google's video
+	// rich-result requirement (description present) is satisfied.
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "",
+		withVideoFull(videoEmbedOpts{
+			playlist: "https://video.bsky.app/p.m3u8", alt: "scenic clip",
+		}))
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	video := main["video"].(map[string]any)
+	if video["description"] != "scenic clip" {
+		t.Errorf("description fallback = %v, want name", video["description"])
+	}
+}
+
+func TestBuildPostJSONLD_VideoNoAspectRatio(t *testing.T) {
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "x",
+		withVideoFull(videoEmbedOpts{
+			playlist: "https://video.bsky.app/p.m3u8", alt: "alt",
+		}))
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	video := main["video"].(map[string]any)
+	if _, present := video["width"]; present {
+		t.Errorf("width should be omitted when AspectRatio missing")
+	}
+	if _, present := video["height"]; present {
+		t.Errorf("height should be omitted when AspectRatio missing")
+	}
+}
+
+func TestBuildPostJSONLD_VideoMissingPlaylist(t *testing.T) {
+	// No playlist -> VideoObject suppressed; image[]/thumbnailUrl still set
+	// from the video thumb (existing behavior).
+	thumb := "https://cdn.bsky.app/img/video_thumbnail/plain/did:plc:alice/v@jpeg"
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "x",
+		withVideo(thumb))
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	if _, present := main["video"]; present {
+		t.Errorf("video without playlist should not produce VideoObject")
+	}
+	if main["thumbnailUrl"] != thumb {
+		t.Errorf("thumbnailUrl should still be set from video thumb, got %v", main["thumbnailUrl"])
+	}
+}
+
+func TestBuildPostJSONLD_VideoHiddenEmbed(t *testing.T) {
+	// Self-labeled hide drops the video, parallel to the image-hide test.
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "nsfw",
+		withVideoFull(videoEmbedOpts{
+			thumbnail: "https://cdn.bsky.app/img/x@jpeg",
+			playlist:  "https://video.bsky.app/p.m3u8",
+			alt:       "should be dropped",
+		}),
+		withSelfLabel("porn"))
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	if _, present := main["video"]; present {
+		t.Errorf("hidden-embed post should not emit video")
+	}
+}
+
+func TestBuildPostJSONLD_VideoInRecordWithMedia(t *testing.T) {
+	thumb := "https://cdn.bsky.app/img/video_thumbnail/plain/did:plc:alice/v@jpeg"
+	playlist := "https://video.bsky.app/p.m3u8"
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "quote+video",
+		withVideoFull(videoEmbedOpts{
+			thumbnail: thumb, playlist: playlist, alt: "alt", recordMedia: true,
+			hasAspect: true, width: 4, height: 3,
+		}))
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	video, ok := main["video"].(map[string]any)
+	if !ok {
+		t.Fatalf("video missing on record-with-media post")
+	}
+	if video["contentUrl"] != playlist {
+		t.Errorf("contentUrl = %v, want %v", video["contentUrl"], playlist)
+	}
+	if video["thumbnailUrl"] != thumb {
+		t.Errorf("thumbnailUrl = %v, want %v", video["thumbnailUrl"], thumb)
+	}
+	// quote-post still surfaces via isBasedOn alongside the video.
+	if main["isBasedOn"] != "https://bsky.app/profile/quoted.bsky.social/post/q" {
+		t.Errorf("isBasedOn = %v", main["isBasedOn"])
+	}
+}
+
+func TestBuildPostJSONLD_VideoOnReply(t *testing.T) {
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "main")
+	*pv.ReplyCount = 1
+	thumb := "https://cdn.bsky.app/img/video_thumbnail/plain/did:plc:bob/v@jpeg"
+	playlist := "https://video.bsky.app/bob.m3u8"
+	reply := makePostView("bob.bsky.social", "did:plc:bob", "rep1", "watch",
+		withVideoFull(videoEmbedOpts{
+			thumbnail: thumb, playlist: playlist, alt: "bob's clip",
+		}))
+	out, _ := buildPostJSONLD(pv, buildReplies(reply), "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	c := main["comment"].([]any)[0].(map[string]any)
+	video, ok := c["video"].(map[string]any)
+	if !ok {
+		t.Fatalf("reply video missing")
+	}
+	if video["@type"] != "VideoObject" {
+		t.Errorf("reply video @type = %v", video["@type"])
+	}
+	if video["name"] != "bob's clip" {
+		t.Errorf("reply video name = %v", video["name"])
+	}
+	if video["contentUrl"] != playlist {
+		t.Errorf("reply video contentUrl = %v", video["contentUrl"])
+	}
+	if video["embedUrl"] != "https://bsky.app/profile/bob.bsky.social/post/rep1" {
+		t.Errorf("reply video embedUrl = %v", video["embedUrl"])
+	}
+}
+
+func TestBuildPostJSONLD_NoVideoNoField(t *testing.T) {
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "no embed")
+	out, _ := buildPostJSONLD(pv, nil, "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	if _, present := main["video"]; present {
+		t.Errorf("post without video should not include video field")
+	}
+}
+
+func TestBuildProfileJSONLD_HasPartVideo(t *testing.T) {
+	pv := newProfileViewDetailed()
+	playlist := "https://video.bsky.app/p.m3u8"
+	post := makePostView("alice.bsky.social", "did:plc:alice", "rp1", "see",
+		withVideoFull(videoEmbedOpts{
+			playlist: playlist, alt: "alt",
+		}))
+	out, _ := buildProfileJSONLD(pv, []*appbsky.FeedDefs_PostView{post}, hideEmbedLabels, hideReplyLabels)
+	page := unmarshalLD(t, out)
+	hp := page["hasPart"].([]any)
+	if len(hp) != 1 {
+		t.Fatalf("expected 1 hasPart entry, got %d", len(hp))
+	}
+	video, ok := hp[0].(map[string]any)["video"].(map[string]any)
+	if !ok {
+		t.Fatalf("hasPart entry should carry video, got %v", hp[0])
+	}
+	if video["contentUrl"] != playlist {
+		t.Errorf("hasPart video contentUrl = %v", video["contentUrl"])
+	}
+	if video["embedUrl"] != "https://bsky.app/profile/alice.bsky.social/post/rp1" {
+		t.Errorf("hasPart video embedUrl = %v", video["embedUrl"])
+	}
+}
+
+// handle.invalid authors must still produce a non-empty embedUrl on the
+// VideoObject. The handle-form URL is unusable, so we fall back to the
+// DID-form URL derived from the AT-URI authority. Without this fallback,
+// omitempty drops embedUrl and Google's video indexer loses the canonical
+// page reference.
+func TestBuildPostJSONLD_VideoHandleInvalidEmbedURL(t *testing.T) {
+	playlist := "https://video.bsky.app/p.m3u8"
+	pv := makePostView("handle.invalid", "did:plc:alice", "abc123", "watch",
+		withVideoFull(videoEmbedOpts{
+			playlist: playlist, alt: "scenic clip",
+		}))
+	canonical := "https://bsky.app/profile/did:plc:alice/post/abc123"
+	out, _ := buildPostJSONLD(pv, nil, canonical, hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	video, ok := main["video"].(map[string]any)
+	if !ok {
+		t.Fatalf("video missing on handle.invalid post")
+	}
+	if video["embedUrl"] != canonical {
+		t.Errorf("embedUrl = %v, want %v", video["embedUrl"], canonical)
+	}
+	if video["contentUrl"] != playlist {
+		t.Errorf("contentUrl = %v, want %v", video["contentUrl"], playlist)
+	}
+}
+
+// Same fallback applies to videos on replies whose author is handle.invalid.
+func TestBuildPostJSONLD_VideoHandleInvalidEmbedURL_Reply(t *testing.T) {
+	pv := makePostView("alice.bsky.social", "did:plc:alice", "abc123", "main")
+	*pv.ReplyCount = 1
+	playlist := "https://video.bsky.app/bob.m3u8"
+	reply := makePostView("handle.invalid", "did:plc:bob", "rep1", "watch",
+		withVideoFull(videoEmbedOpts{
+			playlist: playlist, alt: "bob's clip",
+		}))
+	out, _ := buildPostJSONLD(pv, buildReplies(reply), "u", hideEmbedLabels, hideReplyLabels)
+	main := unmarshalLD(t, out)["mainEntity"].(map[string]any)
+	c := main["comment"].([]any)[0].(map[string]any)
+	video, ok := c["video"].(map[string]any)
+	if !ok {
+		t.Fatalf("reply video missing")
+	}
+	want := "https://bsky.app/profile/did:plc:bob/post/rep1"
+	if video["embedUrl"] != want {
+		t.Errorf("reply video embedUrl = %v, want %v", video["embedUrl"], want)
+	}
+}