Michael Black
49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
package main
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import (
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appbsky "github.com/bluesky-social/indigo/api/bsky"
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)
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// Helpers for extracting Open Graph metadata from post embeds. These feed
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// og:* / twitter:* meta tags only; the schema.org JSON-LD output lives in
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// jsonld.go. og:video has its own path because JSON-LD does not yet emit
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// VideoObject (deferred — needs `duration` from the appview).
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// videoMeta holds og:video meta tag data.
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type videoMeta struct {
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URL string
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Type string
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Width int64
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Height int64
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HasSize bool
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}
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// extractVideoMeta returns og:video metadata, or the zero value if there's
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// no video embed. Respects embedHidden so og:video and og:image stay in sync.
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func extractVideoMeta(pv *appbsky.FeedDefs_PostView, embedHidden bool) videoMeta {
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if pv == nil || pv.Embed == nil || embedHidden {
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return videoMeta{}
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}
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var v *appbsky.EmbedVideo_View
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if pv.Embed.EmbedVideo_View != nil {
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v = pv.Embed.EmbedVideo_View
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} else if pv.Embed.EmbedRecordWithMedia_View != nil &&
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pv.Embed.EmbedRecordWithMedia_View.Media != nil &&
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pv.Embed.EmbedRecordWithMedia_View.Media.EmbedVideo_View != nil {
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v = pv.Embed.EmbedRecordWithMedia_View.Media.EmbedVideo_View
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}
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if v == nil || v.Playlist == "" {
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return videoMeta{}
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}
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out := videoMeta{
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URL: v.Playlist,
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Type: "application/vnd.apple.mpegurl",
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}
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if v.AspectRatio != nil {
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out.Width = v.AspectRatio.Width
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out.Height = v.AspectRatio.Height
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out.HasSize = true
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}
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return out
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}
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