Merge pull request #2821 from davotoula/fix/hls-imeta-blurhash-thumbhash

Rich imeta on every published HLS event + auto-published kind:1 sibling

amethyst/src/main/java/com/vitorpamplona/amethyst/service/uploads/hls/HlsKind1SiblingBuilder.kt

@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.uploads.hls
+
+import com.davotoula.lightcompressor.hls.HlsContentTypes
+import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate
+import com.vitorpamplona.quartz.nip01Core.tags.references.reference
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
+import com.vitorpamplona.quartz.nip71Video.blurhash
+import com.vitorpamplona.quartz.nip71Video.dims
+import com.vitorpamplona.quartz.nip71Video.hash
+import com.vitorpamplona.quartz.nip71Video.image
+import com.vitorpamplona.quartz.nip71Video.mimeType
+import com.vitorpamplona.quartz.nip71Video.thumbhash
+import com.vitorpamplona.quartz.nip92IMeta.imeta
+import com.vitorpamplona.quartz.nip92IMeta.imetaTagBuilder
+import com.vitorpamplona.quartz.nip94FileMetadata.tags.DimensionTag
+import com.vitorpamplona.quartz.utils.TimeUtils
+
+/**
+ * Builds the kind:1 short-note that's published as a sibling of the NIP-71 video event from
+ * Amethyst's HLS publish flow. Receivers that don't speak NIP-71 can still render a rich
+ * preview (poster + dim + blurhash/thumbhash) from the kind:1 alone, while NIP-71-aware
+ * receivers can hop to the addressable form via the `a` tag.
+ *
+ * Tag layout:
+ * - One `imeta` mirroring the master rendition (url=master m3u8, m=hls, x=master sha256,
+ *   dim=master dim, image=poster, blurhash, thumbhash).
+ * - One `r` tag with the master m3u8 URL (idiomatic kind:1 reference).
+ *
+ * Content mirrors the previous "Draft note" layout: `title\n\ndescription\n\nmasterUrl`,
+ * blank fields skipped.
+ *
+ * Intentionally omits an `a` tag back-reference to the NIP-71 event: in practice Amethyst's
+ * note renderer prefers the embedded addressable form when an `a` tag is present, and falls
+ * back to a placeholder if the relay set hasn't returned it yet — masking the rich imeta we
+ * just added. Without `a`, the kind:1 renders as a vanilla rich-imeta video note across
+ * clients, which is what users expect from a shared video link.
+ */
+object HlsKind1SiblingBuilder {
+    fun build(
+        title: String,
+        description: String,
+        masterUrl: String,
+        masterSha256: String?,
+        masterDimension: DimensionTag?,
+        posterUrl: String?,
+        blurhash: String?,
+        thumbhash: String?,
+        createdAt: Long? = null,
+    ): EventTemplate<TextNoteEvent> {
+        val content =
+            listOf(title, description, masterUrl)
+                .map { it.trim() }
+                .filter { it.isNotEmpty() }
+                .joinToString("\n\n")
+
+        val masterImeta =
+            imetaTagBuilder(masterUrl) {
+                mimeType(HlsContentTypes.HLS_PLAYLIST)
+                masterSha256?.let { hash(it) }
+                masterDimension?.let { dims(it) }
+                posterUrl?.let { image(it) }
+                blurhash?.let { this.blurhash(it) }
+                thumbhash?.let { this.thumbhash(it) }
+            }
+
+        return TextNoteEvent.build(content, createdAt ?: TimeUtils.now()) {
+            imeta(masterImeta)
+            reference(masterUrl)
+        }
+    }
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/service/uploads/hls/HlsVideoEventBuilder.kt

@@ -54,6 +54,9 @@ data class HlsVideoPublishInput(
     // (gallery thumbnails, previews) have a still to render — the .m3u8 playlist itself is a
     // text manifest that can't be decoded as an image frame.
     val posterUrl: String? = null,
+    // Identical for every rendition since the source frame is the same.
+    val blurhash: String? = null,
+    val thumbhash: String? = null,
 )
 
 sealed class HlsVideoEventTemplate {
@@ -66,6 +69,16 @@ sealed class HlsVideoEventTemplate {
     ) : HlsVideoEventTemplate()
 }
 
+/**
+ * Result of [HlsVideoEventBuilder.build]. Exposes the unsigned NIP-71 [template] plus the
+ * master [masterDimension] (largest rendition's WxH) so the kind:1 sibling imeta can carry
+ * the same dim as the NIP-71 master imeta.
+ */
+data class HlsBuiltTemplate(
+    val template: HlsVideoEventTemplate,
+    val masterDimension: DimensionTag?,
+)
+
 /**
  * Assembles a NIP-71 VideoHorizontalEvent / VideoVerticalEvent template from an HLS upload
  * result. Orientation is decided from the first rendition's width/height: portrait
@@ -81,7 +94,7 @@ sealed class HlsVideoEventTemplate {
  */
 @OptIn(ExperimentalUuidApi::class)
 object HlsVideoEventBuilder {
-    fun build(input: HlsVideoPublishInput): HlsVideoEventTemplate {
+    fun build(input: HlsVideoPublishInput): HlsBuiltTemplate {
         val firstRendition = input.renditions.firstOrNull()
         val isVertical = firstRendition != null && firstRendition.height > firstRendition.width
 
@@ -96,6 +109,8 @@ object HlsVideoEventBuilder {
                 dimension = masterDimension,
                 alt = input.alt,
                 image = posterImage,
+                blurhash = input.blurhash,
+                thumbhash = input.thumbhash,
             )
 
         val renditionMetas =
@@ -115,6 +130,8 @@ object HlsVideoEventBuilder {
                     size = combinedMetadata?.size?.toInt(),
                     dimension = DimensionTag(summary.width, summary.height),
                     image = posterImage,
+                    blurhash = input.blurhash,
+                    thumbhash = input.thumbhash,
                 )
             }
 
@@ -122,24 +139,27 @@ object HlsVideoEventBuilder {
         val dTag = input.dTag ?: Uuid.random().toString()
         val createdAt = input.createdAt ?: TimeUtils.now()
 
-        return if (isVertical) {
-            HlsVideoEventTemplate.Vertical(
-                VideoVerticalEvent.build(input.description, dTag, createdAt) {
-                    videoIMetas(videoMetas)
-                    title(input.title)
-                    input.durationSeconds?.let { duration(it) }
-                    input.contentWarning?.let { contentWarning(it) }
-                },
-            )
-        } else {
-            HlsVideoEventTemplate.Horizontal(
-                VideoHorizontalEvent.build(input.description, dTag, createdAt) {
-                    videoIMetas(videoMetas)
-                    title(input.title)
-                    input.durationSeconds?.let { duration(it) }
-                    input.contentWarning?.let { contentWarning(it) }
-                },
-            )
-        }
+        val template =
+            if (isVertical) {
+                HlsVideoEventTemplate.Vertical(
+                    VideoVerticalEvent.build(input.description, dTag, createdAt) {
+                        videoIMetas(videoMetas)
+                        title(input.title)
+                        input.durationSeconds?.let { duration(it) }
+                        input.contentWarning?.let { contentWarning(it) }
+                    },
+                )
+            } else {
+                HlsVideoEventTemplate.Horizontal(
+                    VideoHorizontalEvent.build(input.description, dTag, createdAt) {
+                        videoIMetas(videoMetas)
+                        title(input.title)
+                        input.durationSeconds?.let { duration(it) }
+                        input.contentWarning?.let { contentWarning(it) }
+                    },
+                )
+            }
+
+        return HlsBuiltTemplate(template, masterDimension)
     }
 }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/profile/gallery/GalleryThumb.kt

@@ -40,13 +40,13 @@ import androidx.media3.common.util.UnstableApi
 import coil3.compose.AsyncImagePainter
 import coil3.compose.SubcomposeAsyncImage
 import coil3.compose.SubcomposeAsyncImageContent
-import com.davotoula.lightcompressor.hls.HlsContentTypes
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
 import com.vitorpamplona.amethyst.commons.richtext.MediaUrlContent
 import com.vitorpamplona.amethyst.commons.richtext.MediaUrlImage
 import com.vitorpamplona.amethyst.commons.richtext.MediaUrlVideo
+import com.vitorpamplona.amethyst.commons.richtext.RichTextParser.Companion.isHlsMimeType
 import com.vitorpamplona.amethyst.commons.richtext.RichTextParser.Companion.isVideoUrl
 import com.vitorpamplona.amethyst.commons.richtext.toCoilModel
 import com.vitorpamplona.amethyst.model.Note
@@ -69,19 +69,6 @@ import com.vitorpamplona.quartz.nip53LiveActivities.clip.LiveActivitiesClipEvent
 import com.vitorpamplona.quartz.nip68Picture.PictureEvent
 import com.vitorpamplona.quartz.nip71Video.VideoEvent
 
-// Mirrors the canonical HLS-playlist mime list used in MediaItemCache.toExoPlayerMimeType.
-// Kept inline rather than extracting a shared helper for one read-side caller.
-private fun isHlsMimeType(mimeType: String?): Boolean =
-    when (mimeType?.lowercase()) {
-        HlsContentTypes.HLS_PLAYLIST,
-        "application/x-mpegurl",
-        "audio/x-mpegurl",
-        "audio/mpegurl",
-        -> true
-
-        else -> false
-    }
-
 @Composable
 fun GalleryThumbnail(
     baseNote: Note,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/video/hls/HlsPublishOrchestrator.kt

@@ -31,10 +31,13 @@ import com.davotoula.lightcompressor.hls.Rendition
 import com.davotoula.lightcompressor.hls.SimpleHlsListener
 import com.vitorpamplona.amethyst.service.uploads.MediaUploadResult
 import com.vitorpamplona.amethyst.service.uploads.hls.HlsBlobUploader
+import com.vitorpamplona.amethyst.service.uploads.hls.HlsKind1SiblingBuilder
 import com.vitorpamplona.amethyst.service.uploads.hls.HlsVideoEventBuilder
 import com.vitorpamplona.amethyst.service.uploads.hls.HlsVideoEventTemplate
 import com.vitorpamplona.amethyst.service.uploads.hls.HlsVideoPublishInput
 import com.vitorpamplona.amethyst.ui.actions.mediaServers.ServerName
+import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.utils.Log
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -55,6 +58,18 @@ data class HlsPublishRequest(
     val durationSeconds: Int? = null,
 )
 
+/**
+ * Poster JPEG upload result. Carries the public URL plus blurhash/thumbhash derived from the
+ * same poster pixels, so every imeta in the published NIP-71 event can render an instant
+ * low-res placeholder. All three fields share a single source frame; per-rendition variants
+ * would be redundant.
+ */
+data class HlsPosterUpload(
+    val url: String,
+    val blurhash: String? = null,
+    val thumbhash: String? = null,
+)
+
 /**
  * Orchestrates the transcode → upload → build → publish pipeline for a single HLS video publish.
  * Delegates transcoding and segment/media-playlist upload plumbing to the library's
@@ -76,12 +91,17 @@ class HlsPublishOrchestrator(
     ) -> HlsUploadResult<MediaUploadResult>,
     private val buildUploader: (ServerName) -> HlsBlobUploader,
     private val uploadMaster: suspend (HlsBlobUploader, String) -> MediaUploadResult,
-    private val signAndPublish: suspend (HlsVideoEventTemplate) -> String,
+    // Signs and broadcasts the NIP-71 video event AND the kind:1 sibling note. Returns the
+    // NIP-71 event id.
+    private val signAndPublish: suspend (
+        primary: HlsVideoEventTemplate,
+        sibling: EventTemplate<TextNoteEvent>,
+    ) -> String,
     // Generates a poster JPEG from the picked source video and uploads it via the supplied
     // uploader, returning the public URL. Returns null if poster generation isn't possible
     // (unsupported source, decode failure, no readable frame). Failures here must NOT fail
     // the whole publish — the orchestrator catches and continues without a poster.
-    private val uploadPoster: suspend (HlsBlobUploader) -> String? = { _ -> null },
+    private val uploadPoster: suspend (HlsBlobUploader) -> HlsPosterUpload? = { _ -> null },
 ) {
     val state: StateFlow<HlsPublishState> = _state
 
@@ -208,7 +228,7 @@ class HlsPublishOrchestrator(
             // previews) have a still to render. Tolerate failure: skip the poster rather than
             // failing the entire publish, since the user has already paid the cost of the long
             // segment uploads.
-            val posterUrl =
+            val posterResult =
                 try {
                     uploadPoster(uploader)
                 } catch (e: CancellationException) {
@@ -219,7 +239,7 @@ class HlsPublishOrchestrator(
                 }
 
             _state.value = HlsPublishState.Publishing
-            val template =
+            val built =
                 HlsVideoEventBuilder.build(
                     HlsVideoPublishInput(
                         renditions = uploadResult.renditions,
@@ -230,10 +250,23 @@ class HlsPublishOrchestrator(
                         description = request.description,
                         durationSeconds = request.durationSeconds,
                         contentWarning = contentWarningOrNull(request),
-                        posterUrl = posterUrl,
+                        posterUrl = posterResult?.url,
+                        blurhash = posterResult?.blurhash,
+                        thumbhash = posterResult?.thumbhash,
                     ),
                 )
-            val eventId = signAndPublish(template)
+            val sibling =
+                HlsKind1SiblingBuilder.build(
+                    title = request.title,
+                    description = request.description,
+                    masterUrl = masterUrl,
+                    masterSha256 = masterUpload.sha256,
+                    masterDimension = built.masterDimension,
+                    posterUrl = posterResult?.url,
+                    blurhash = posterResult?.blurhash,
+                    thumbhash = posterResult?.thumbhash,
+                )
+            val eventId = signAndPublish(built.template, sibling)
 
             _state.value =
                 HlsPublishState.Success(

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/video/hls/HlsPublishOrchestratorFactory.kt

@@ -28,11 +28,13 @@ import com.davotoula.lightcompressor.hls.HlsContentTypes
 import com.davotoula.lightcompressor.hls.HlsUploadHelper
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.service.uploads.MediaUploadResult
+import com.vitorpamplona.amethyst.service.uploads.PreviewMetadataCalculator
 import com.vitorpamplona.amethyst.service.uploads.getThumbnail
 import com.vitorpamplona.amethyst.service.uploads.hls.HlsBlobUploader
 import com.vitorpamplona.amethyst.service.uploads.hls.HlsBlobUploaderFactory
 import com.vitorpamplona.amethyst.service.uploads.hls.HlsVideoEventTemplate
 import com.vitorpamplona.quartz.utils.Log
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.withContext
@@ -87,7 +89,7 @@ fun createProductionHlsPublishOrchestrator(
                 }
             }
         },
-        signAndPublish = { template ->
+        signAndPublish = { template, sibling ->
             val inner =
                 when (template) {
                     is HlsVideoEventTemplate.Horizontal -> template.template
@@ -95,6 +97,17 @@ fun createProductionHlsPublishOrchestrator(
                 }
             val signed = account.signer.sign(inner)
             account.sendAutomatic(signed)
+
+            // Sibling-publish failure is a soft warning: the NIP-71 event already landed, so a
+            // partial success is more useful than a hard fail.
+            try {
+                val signedSibling = account.signer.sign(sibling)
+                account.sendAutomatic(signedSibling)
+            } catch (e: CancellationException) {
+                throw e
+            } catch (e: Throwable) {
+                Log.w(TAG) { "kind:1 sibling sign/publish failed: ${e.message}" }
+            }
             signed.id
         },
         uploadPoster = { uploader ->
@@ -108,8 +121,9 @@ fun createProductionHlsPublishOrchestrator(
     )
 
 /**
- * Extracts a still frame from the source video at [uri], encodes it as JPEG, and uploads it
- * via [uploader]. Returns the public URL on success or null if any step fails (unsupported
+ * Extracts a still frame from the source video at [uri], encodes it as JPEG, computes blurhash +
+ * thumbhash from the same JPEG bytes, and uploads it via [uploader]. Returns an [HlsPosterUpload]
+ * carrying the public URL plus the two hashes on success, or null if any step fails (unsupported
  * source, no readable frame, encode/upload error). The orchestrator treats null as "publish
  * without a poster" — failure here must never abort the publish.
  */
@@ -117,11 +131,28 @@ private suspend fun generateAndUploadPoster(
     context: Context,
     uri: Uri,
     uploader: HlsBlobUploader,
-): String? {
+): HlsPosterUpload? {
     val posterFile = extractPosterToTempFile(context, uri) ?: return null
     return try {
+        // Read once: hash from the same bytes we upload, so the hashes describe the exact
+        // JPEG receiving clients will fetch via the imeta `image` URL.
+        val posterBytes = posterFile.readBytes()
+        val hashes =
+            try {
+                PreviewMetadataCalculator.computeFromBytes(posterBytes, POSTER_CONTENT_TYPE, null)
+            } catch (e: CancellationException) {
+                throw e
+            } catch (e: Exception) {
+                Log.w(TAG) { "uploadPoster: blurhash/thumbhash compute failed: ${e.message}" }
+                null
+            }
         val result = uploader.upload(posterFile, POSTER_CONTENT_TYPE) { _, _ -> }
-        result.url
+        val url = result.url ?: return null
+        HlsPosterUpload(
+            url = url,
+            blurhash = hashes?.blurhash?.blurhash,
+            thumbhash = hashes?.thumbhash?.thumbhash,
+        )
     } finally {
         if (!posterFile.delete()) {
             Log.w(TAG) { "uploadPoster: failed to delete temp file ${posterFile.absolutePath}" }
@@ -155,6 +186,8 @@ private suspend fun extractPosterToTempFile(
                 }
                 throw e
             }
+        } catch (e: CancellationException) {
+            throw e
         } catch (e: Exception) {
             Log.w(TAG) { "extractPosterToTempFile: failed for $uri — ${e.message}" }
             null

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/video/hls/NewHlsVideoScreen.kt

@@ -83,7 +83,6 @@ import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
 import com.vitorpamplona.amethyst.ui.components.TextSpinner
 import com.vitorpamplona.amethyst.ui.components.TitleExplainer
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav
-import com.vitorpamplona.amethyst.ui.navigation.routes.Route
 import com.vitorpamplona.amethyst.ui.navigation.topbars.TopBarWithBackButton
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import kotlinx.collections.immutable.toImmutableList
@@ -323,31 +322,6 @@ private fun FormFields(vm: NewHlsVideoViewModel) {
         )
     }
 
-    Spacer(Modifier.height(8.dp))
-
-    // Draft-a-note-after-upload toggle — opens the existing short-note composer prefilled
-    // with the title, description and master playlist URL; the user edits and posts.
-    Row(
-        modifier = Modifier.fillMaxWidth(),
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        Column(modifier = Modifier.weight(1f)) {
-            Text(
-                text = stringResource(R.string.hls_draft_note_after_upload),
-                style = MaterialTheme.typography.bodyLarge,
-            )
-            Text(
-                text = stringResource(R.string.hls_draft_note_after_upload_explainer),
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-        }
-        Switch(
-            checked = vm.draftNoteAfterUpload,
-            onCheckedChange = { vm.draftNoteAfterUpload = it },
-        )
-    }
-
     Spacer(Modifier.height(16.dp))
 
     // Server picker — reads the user's configured Blossom servers from the account
@@ -686,54 +660,18 @@ private fun SuccessBody(
         )
         Spacer(Modifier.height(16.dp))
 
-        if (vm.draftNoteAfterUpload) {
-            Button(
-                onClick = {
-                    val draft = buildDraftNoteText(vm.title, vm.description, state.masterUrl)
-                    vm.reset()
-                    // Pop the HLS publish screen off the back stack as we open the composer,
-                    // so that after the user posts (or backs out of) the draft they land on
-                    // the screen they came from, not back on the HLS publish flow.
-                    nav.popUpTo(Route.NewShortNote(message = draft), Route.NewHlsVideo::class)
-                },
-                modifier = Modifier.fillMaxWidth(),
-            ) {
-                Text(stringResource(R.string.hls_draft_note_button))
-            }
-            Spacer(Modifier.height(8.dp))
-            OutlinedButton(
-                onClick = {
-                    vm.reset()
-                    nav.popBack()
-                },
-                modifier = Modifier.fillMaxWidth(),
-            ) {
-                Text(stringResource(R.string.hls_done))
-            }
-        } else {
-            Button(
-                onClick = {
-                    vm.reset()
-                    nav.popBack()
-                },
-                modifier = Modifier.fillMaxWidth(),
-            ) {
-                Text(stringResource(R.string.hls_done))
-            }
+        Button(
+            onClick = {
+                vm.reset()
+                nav.popBack()
+            },
+            modifier = Modifier.fillMaxWidth(),
+        ) {
+            Text(stringResource(R.string.hls_done))
         }
     }
 }
 
-private fun buildDraftNoteText(
-    title: String,
-    description: String,
-    masterUrl: String,
-): String =
-    listOf(title, description, masterUrl)
-        .map { it.trim() }
-        .filter { it.isNotEmpty() }
-        .joinToString("\n\n")
-
 @Composable
 private fun FailureBody(
     vm: NewHlsVideoViewModel,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/video/hls/NewHlsVideoViewModel.kt

@@ -64,7 +64,6 @@ open class NewHlsVideoViewModel : ViewModel() {
     var sensitiveContent by mutableStateOf(false)
     var contentWarningReason by mutableStateOf("")
     var useH265 by mutableStateOf(true)
-    var draftNoteAfterUpload by mutableStateOf(true)
     var selectedServer by mutableStateOf<ServerName?>(null)
 
     var selectedRenditionLabels by mutableStateOf(

amethyst/src/main/res/values-cs-rCZ/strings.xml

@@ -2295,9 +2295,6 @@
     <string name="hls_view_note">Zobrazit poznámku</string>
     <string name="hls_done">Hotovo</string>
     <string name="hls_try_again">Zkusit znovu</string>
-    <string name="hls_draft_note_after_upload">Vytvořit poznámku po nahrání</string>
-    <string name="hls_draft_note_after_upload_explainer">Otevře editor poznámky předvyplněný titulkem, popisem a odkazem na video, abyste ho mohli upravit před odesláním.</string>
-    <string name="hls_draft_note_button">Vytvořit poznámku</string>
     <string name="pack_actions_dialog_title">Akce balíčku</string>
     <string name="list_actions_dialog_title">Akce seznamu</string>
     <string name="bookmark_item_actions_dialog_title">Akce záložky</string>

amethyst/src/main/res/values-de-rDE/strings.xml

@@ -2275,9 +2275,6 @@ anz der Bedingungen ist erforderlich</string>
     <string name="hls_view_note">Notiz anzeigen</string>
     <string name="hls_done">Fertig</string>
     <string name="hls_try_again">Erneut versuchen</string>
-    <string name="hls_draft_note_after_upload">Notiz nach Upload entwerfen</string>
-    <string name="hls_draft_note_after_upload_explainer">Öffnet den Notiz-Editor mit Titel, Beschreibung und Video-Link vorausgefüllt, damit du sie vor dem Posten anpassen kannst.</string>
-    <string name="hls_draft_note_button">Notiz entwerfen</string>
     <string name="pack_actions_dialog_title">Paket-Aktionen</string>
     <string name="list_actions_dialog_title">Listenaktionen</string>
     <string name="bookmark_item_actions_dialog_title">Lesezeichen-Aktionen</string>

amethyst/src/main/res/values-hi-rIN/strings.xml

@@ -2317,9 +2317,6 @@
     <string name="hls_view_note">टीका देखें</string>
     <string name="hls_done">हो गया</string>
     <string name="hls_try_again">पुनः प्रयास करें</string>
-    <string name="hls_draft_note_after_upload">टीका सम्पादन आरोहण पश्चात</string>
-    <string name="hls_draft_note_after_upload_explainer">टीका सम्पादक खोलें शीर्षक विवरण तथा दृश्याभिलेख योजक जानकारी से पूर्वयुक्त जिसे आप शोधन कर सकते है प्रकाशन पूर्व।</string>
-    <string name="hls_draft_note_button">टीका सम्पादन</string>
     <string name="pack_actions_dialog_title">पोटली कार्य</string>
     <string name="list_actions_dialog_title">सूची कार्य</string>
     <string name="bookmark_item_actions_dialog_title">स्मर्त्तव्यचिह्न कार्य</string>

amethyst/src/main/res/values-hu-rHU/strings.xml

@@ -2316,9 +2316,6 @@
     <string name="hls_view_note">Bejegyzés megtekintése</string>
     <string name="hls_done">Kész</string>
     <string name="hls_try_again">Próbálja újra</string>
-    <string name="hls_draft_note_after_upload">Bejegyzéspiszkozat feltöltés után</string>
-    <string name="hls_draft_note_after_upload_explainer">Bejegyzésszerkesztő megnyitása a címmel, leírással és videóhivatkozásokkal előre kitöltve, hogy a közzététel előtt finomíthasson rajta.</string>
-    <string name="hls_draft_note_button">Bejegyzéspiszkozat</string>
     <string name="pack_actions_dialog_title">Csomagműveletek</string>
     <string name="list_actions_dialog_title">Listaműveletek</string>
     <string name="bookmark_item_actions_dialog_title">Könyvjelző-műveletek</string>

amethyst/src/main/res/values-nl-rNL/strings.xml

@@ -2084,9 +2084,6 @@
     <string name="hls_view_note">Bericht bekijken</string>
     <string name="hls_done">Klaar</string>
     <string name="hls_try_again">Opnieuw proberen</string>
-    <string name="hls_draft_note_after_upload">Conceptnotitie na upload</string>
-    <string name="hls_draft_note_after_upload_explainer">Open de notitie-editor met titel, omschrijving en videolink voorgeladen zodat je het kunt aanpassen voordat je plaatst.</string>
-    <string name="hls_draft_note_button">Conceptnotitie</string>
     <string name="pack_actions_dialog_title">Pakket-acties</string>
     <string name="list_actions_dialog_title">Lijst-acties</string>
     <string name="bookmark_item_actions_dialog_title">Bladwijzer-acties</string>

amethyst/src/main/res/values-pl-rPL/strings.xml

@@ -2339,9 +2339,6 @@ Zaplanowane posty z innych kont nie zostaną opublikowane, dopóki to konto jest
     <string name="hls_view_note">Zobacz publikację</string>
     <string name="hls_done">Gotowe</string>
     <string name="hls_try_again">Spróbuj ponownie</string>
-    <string name="hls_draft_note_after_upload">Szkic publikacji po wgraniu</string>
-    <string name="hls_draft_note_after_upload_explainer">Otwórz edytor publikacji z gotowym tytułem, opisem i linkiem do filmu, abyś mógł wprowadzić zmiany przed opublikowaniem.</string>
-    <string name="hls_draft_note_button">Szkic publikacji</string>
     <string name="pack_actions_dialog_title">Akcje pakietu</string>
     <string name="list_actions_dialog_title">Akcje listy</string>
     <string name="bookmark_item_actions_dialog_title">Akcje zakładki</string>

amethyst/src/main/res/values-pt-rBR/strings.xml

@@ -2271,9 +2271,6 @@
     <string name="hls_view_note">Ver nota</string>
     <string name="hls_done">Concluído</string>
     <string name="hls_try_again">Tentar novamente</string>
-    <string name="hls_draft_note_after_upload">Rascunho de nota após upload</string>
-    <string name="hls_draft_note_after_upload_explainer">Abre o compositor de nota pré-preenchido com o título, descrição e link do vídeo para que você possa ajustá-lo antes de publicar.</string>
-    <string name="hls_draft_note_button">Rascunhar nota</string>
     <string name="pack_actions_dialog_title">Ações do pacote</string>
     <string name="list_actions_dialog_title">Ações da lista</string>
     <string name="bookmark_item_actions_dialog_title">Ações de favorito</string>

amethyst/src/main/res/values-sl-rSI/strings.xml

@@ -2243,9 +2243,6 @@ Za podpisovanje se je potrebno prijaviti s privatnim ključem</string>
     <string name="hls_view_note">Poglej zapisek</string>
     <string name="hls_done">Končano</string>
     <string name="hls_try_again">Poskusi znova</string>
-    <string name="hls_draft_note_after_upload">Osnutek zapiska po nalaganju</string>
-    <string name="hls_draft_note_after_upload_explainer">Odpri urejevalnik z že izpolnjenim naslovom, opisom in povezavo do videa, da ga lahko pred objavo še dodelaš.</string>
-    <string name="hls_draft_note_button">Osnutek zapiska</string>
     <string name="pack_actions_dialog_title">Možnosti paketa</string>
     <string name="list_actions_dialog_title">Možnosti seznama</string>
     <string name="bookmark_item_actions_dialog_title">Možnosti zaznamkov</string>

amethyst/src/main/res/values-sv-rSE/strings.xml

@@ -2270,9 +2270,6 @@
     <string name="hls_view_note">Visa anteckning</string>
     <string name="hls_done">Klar</string>
     <string name="hls_try_again">Försök igen</string>
-    <string name="hls_draft_note_after_upload">Utkast till anteckning efter uppladdning</string>
-    <string name="hls_draft_note_after_upload_explainer">Öppnar anteckningskompositören förifylld med titel, beskrivning och videolänk så att du kan justera den innan publicering.</string>
-    <string name="hls_draft_note_button">Utkast till anteckning</string>
     <string name="pack_actions_dialog_title">Paketåtgärder</string>
     <string name="list_actions_dialog_title">Liståtgärder</string>
     <string name="bookmark_item_actions_dialog_title">Bokmärkesåtgärder</string>

amethyst/src/main/res/values-zh-rCN/strings.xml

@@ -2303,9 +2303,6 @@
     <string name="hls_view_note">查看笔记</string>
     <string name="hls_done">完成</string>
     <string name="hls_try_again">重试</string>
-    <string name="hls_draft_note_after_upload">上传后的笔记草稿</string>
-    <string name="hls_draft_note_after_upload_explainer">打开预填了标题、描述和视频链接的笔记，以便您可以在发布之前调整它。</string>
-    <string name="hls_draft_note_button">起草笔记</string>
     <string name="pack_actions_dialog_title">包操作</string>
     <string name="list_actions_dialog_title">列表操作</string>
     <string name="bookmark_item_actions_dialog_title">书签操作</string>

amethyst/src/main/res/values/strings.xml

@@ -2586,9 +2586,6 @@
     <string name="hls_view_note">View note</string>
     <string name="hls_done">Done</string>
     <string name="hls_try_again">Try again</string>
-    <string name="hls_draft_note_after_upload">Draft note after upload</string>
-    <string name="hls_draft_note_after_upload_explainer">Open the note composer pre-filled with the title, description and video link so you can tweak it before posting.</string>
-    <string name="hls_draft_note_button">Draft note</string>
 
     <string name="pack_actions_dialog_title">Pack Actions</string>
     <string name="list_actions_dialog_title">List Actions</string>

amethyst/src/test/java/com/vitorpamplona/amethyst/service/uploads/hls/HlsKind1SiblingBuilderTest.kt

@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.uploads.hls
+
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
+import com.vitorpamplona.quartz.nip94FileMetadata.tags.DimensionTag
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class HlsKind1SiblingBuilderTest {
+    private val masterUrl = "https://cdn.test/master.m3u8"
+    private val masterSha = "ffeeddccbbaa00112233445566778899aabbccddeeff00112233445566778899"
+    private val posterUrl = "https://cdn.test/poster.jpg"
+    private val blurhash = "LFE.@D9F01_2~q%2tRj["
+    private val thumbhash = "wJlGAA"
+    private val masterDim = DimensionTag(2160, 3840)
+
+    private fun build(
+        title: String = "My HD video",
+        description: String = "A clip",
+        masterSha256: String? = masterSha,
+        masterDimension: DimensionTag? = masterDim,
+        posterUrlArg: String? = posterUrl,
+        blurhashArg: String? = blurhash,
+        thumbhashArg: String? = thumbhash,
+        createdAt: Long? = 1_700_000_000L,
+    ) = HlsKind1SiblingBuilder.build(
+        title = title,
+        description = description,
+        masterUrl = masterUrl,
+        masterSha256 = masterSha256,
+        masterDimension = masterDimension,
+        posterUrl = posterUrlArg,
+        blurhash = blurhashArg,
+        thumbhash = thumbhashArg,
+        createdAt = createdAt,
+    )
+
+    private fun Array<Array<String>>.findTag(name: String): Array<String>? = firstOrNull { it.isNotEmpty() && it[0] == name }
+
+    @Test
+    fun kindIs1() {
+        val template = build()
+        assertEquals(TextNoteEvent.KIND, template.kind)
+    }
+
+    @Test
+    fun contentJoinsTitleDescriptionMasterUrlOnDoubleNewline() {
+        val template = build(title = "T", description = "D")
+        assertEquals("T\n\nD\n\n$masterUrl", template.content)
+    }
+
+    @Test
+    fun blankFieldsAreOmittedFromContent() {
+        val template = build(title = "", description = "  ")
+        assertEquals(masterUrl, template.content)
+    }
+
+    @Test
+    fun fieldsAreTrimmed() {
+        val template = build(title = "  T  ", description = "\nD\n")
+        assertEquals("T\n\nD\n\n$masterUrl", template.content)
+    }
+
+    @Test
+    fun masterImetaCarriesAllVisualFields() {
+        val template = build()
+        val imeta = template.tags.findTag("imeta")
+        assertNotNull(imeta)
+        val flat = imeta!!.joinToString("|")
+        assertTrue("url: $flat", flat.contains("url $masterUrl"))
+        assertTrue("mime: $flat", flat.contains("m application/vnd.apple.mpegurl"))
+        assertTrue("hash: $flat", flat.contains("x $masterSha"))
+        assertTrue("dim: $flat", flat.contains("dim 2160x3840"))
+        assertTrue("image: $flat", flat.contains("image $posterUrl"))
+        assertTrue("blurhash: $flat", flat.contains("blurhash $blurhash"))
+        assertTrue("thumbhash: $flat", flat.contains("thumbhash $thumbhash"))
+    }
+
+    @Test
+    fun nullVisualFieldsAreOmittedFromImeta() {
+        val template =
+            build(
+                masterSha256 = null,
+                masterDimension = null,
+                posterUrlArg = null,
+                blurhashArg = null,
+                thumbhashArg = null,
+            )
+        val imeta = template.tags.findTag("imeta")!!
+        val flat = imeta.joinToString("|")
+        assertTrue("url is required: $flat", flat.contains("url $masterUrl"))
+        assertTrue("mime is always present: $flat", flat.contains("m application/vnd.apple.mpegurl"))
+        assertFalse("no hash: $flat", flat.contains("x "))
+        assertFalse("no dim: $flat", flat.contains("dim "))
+        assertFalse("no image: $flat", flat.contains("image "))
+        assertFalse("no blurhash: $flat", flat.contains("blurhash "))
+        assertFalse("no thumbhash: $flat", flat.contains("thumbhash "))
+    }
+
+    @Test
+    fun rTagCarriesMasterUrl() {
+        val template = build()
+        val ref = template.tags.findTag("r")
+        assertNotNull(ref)
+        assertEquals(masterUrl, ref!![1])
+    }
+
+    @Test
+    fun noATagIsEmitted() {
+        val template = build()
+        assertNull(template.tags.findTag("a"))
+    }
+
+    @Test
+    fun createdAtUsesProvidedValue() {
+        val template = build(createdAt = 12_345L)
+        assertEquals(12_345L, template.createdAt)
+    }
+
+    @Test
+    fun createdAtDefaultsToNowWhenNull() {
+        val before = System.currentTimeMillis() / 1_000
+        val template = build(createdAt = null)
+        val after = System.currentTimeMillis() / 1_000
+        assertTrue(template.createdAt in before..after)
+    }
+}

amethyst/src/test/java/com/vitorpamplona/amethyst/service/uploads/hls/HlsPublishOrchestratorTest.kt

@@ -30,9 +30,12 @@ import com.davotoula.lightcompressor.hls.Rendition
 import com.vitorpamplona.amethyst.service.uploads.MediaUploadResult
 import com.vitorpamplona.amethyst.ui.actions.mediaServers.ServerName
 import com.vitorpamplona.amethyst.ui.actions.mediaServers.ServerType
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.video.hls.HlsPosterUpload
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.video.hls.HlsPublishOrchestrator
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.video.hls.HlsPublishRequest
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.video.hls.HlsPublishState
+import com.vitorpamplona.quartz.nip01Core.signers.EventTemplate
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.runBlocking
 import org.junit.After
@@ -160,7 +163,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = fakeRunUpload(),
                 buildUploader = { canned },
                 uploadMaster = fakeUploadMaster(canned),
-                signAndPublish = { tpl ->
+                signAndPublish = { tpl, _ ->
                     publishedTemplates += tpl
                     "signed-event-id"
                 },
@@ -220,7 +223,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = capturingRunUpload,
                 buildUploader = { canned },
                 uploadMaster = fakeUploadMaster(canned),
-                signAndPublish = {
+                signAndPublish = { _, _ ->
                     capturedDuringPublish += orchestrator.state.value
                     "event-id"
                 },
@@ -246,7 +249,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = { _, _, _ -> throw RuntimeException("decode failed") },
                 buildUploader = { CannedUploader() },
                 uploadMaster = { _, _ -> MediaUploadResult(url = "never") },
-                signAndPublish = { "never" },
+                signAndPublish = { _, _ -> "never" },
             )
 
         runBlocking { orchestrator.publish(newRequest()) }
@@ -266,7 +269,7 @@ class HlsPublishOrchestratorTest {
                     HlsBlobUploader { _, _, _ -> throw RuntimeException("server 500") }
                 },
                 uploadMaster = { _, _ -> MediaUploadResult(url = "never") },
-                signAndPublish = { "never" },
+                signAndPublish = { _, _ -> "never" },
             )
 
         runBlocking { orchestrator.publish(newRequest()) }
@@ -285,7 +288,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = fakeRunUpload(),
                 buildUploader = { canned },
                 uploadMaster = { _, _ -> throw RuntimeException("master upload failed") },
-                signAndPublish = { "never" },
+                signAndPublish = { _, _ -> "never" },
             )
 
         runBlocking { orchestrator.publish(newRequest()) }
@@ -304,7 +307,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = fakeRunUpload(),
                 buildUploader = { canned },
                 uploadMaster = fakeUploadMaster(canned),
-                signAndPublish = { throw RuntimeException("relay rejected") },
+                signAndPublish = { _, _ -> throw RuntimeException("relay rejected") },
             )
 
         runBlocking { orchestrator.publish(newRequest()) }
@@ -324,7 +327,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = fakeRunUpload(),
                 buildUploader = { canned },
                 uploadMaster = fakeUploadMaster(canned),
-                signAndPublish = { tpl ->
+                signAndPublish = { tpl, _ ->
                     captured += tpl
                     "event-id"
                 },
@@ -362,7 +365,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = fakeRunUpload(portrait),
                 buildUploader = { canned },
                 uploadMaster = fakeUploadMaster(canned),
-                signAndPublish = { tpl ->
+                signAndPublish = { tpl, _ ->
                     captured += tpl
                     "event-id"
                 },
@@ -376,6 +379,7 @@ class HlsPublishOrchestratorTest {
     @Test
     fun posterUrlFromUploadPosterClosureLandsOnEveryImeta() {
         val captured = mutableListOf<HlsVideoEventTemplate>()
+        val capturedSiblings = mutableListOf<EventTemplate<TextNoteEvent>>()
         val canned = CannedUploader()
         val orchestrator =
             HlsPublishOrchestrator(
@@ -383,11 +387,12 @@ class HlsPublishOrchestratorTest {
                 runUpload = fakeRunUpload(),
                 buildUploader = { canned },
                 uploadMaster = fakeUploadMaster(canned),
-                signAndPublish = { tpl ->
+                signAndPublish = { tpl, sibling ->
                     captured += tpl
+                    capturedSiblings += sibling
                     "event-id"
                 },
-                uploadPoster = { _ -> "https://cdn.test/poster.jpg" },
+                uploadPoster = { _ -> HlsPosterUpload("https://cdn.test/poster.jpg") },
             )
 
         runBlocking { orchestrator.publish(newRequest()) }
@@ -399,6 +404,13 @@ class HlsPublishOrchestratorTest {
             val flat = imeta.joinToString("|")
             assertTrue("imeta missing poster: $flat", flat.contains("image https://cdn.test/poster.jpg"))
         }
+
+        // Sibling kind:1 carries the same poster URL on its single imeta.
+        val sibling = capturedSiblings.single()
+        val siblingImeta = sibling.tags.firstOrNull { it.isNotEmpty() && it[0] == "imeta" }
+        assertNotNull("sibling missing imeta", siblingImeta)
+        val siblingFlat = siblingImeta!!.joinToString("|")
+        assertTrue("sibling imeta missing poster: $siblingFlat", siblingFlat.contains("image https://cdn.test/poster.jpg"))
     }
 
     @Test
@@ -411,7 +423,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = fakeRunUpload(),
                 buildUploader = { canned },
                 uploadMaster = fakeUploadMaster(canned),
-                signAndPublish = { tpl ->
+                signAndPublish = { tpl, _ ->
                     captured += tpl
                     "event-id"
                 },
@@ -439,7 +451,7 @@ class HlsPublishOrchestratorTest {
                 runUpload = { _, _, _ -> throw RuntimeException("boom") },
                 buildUploader = { CannedUploader() },
                 uploadMaster = { _, _ -> MediaUploadResult(url = "never") },
-                signAndPublish = { "never" },
+                signAndPublish = { _, _ -> "never" },
             )
 
         runBlocking { orchestrator.publish(newRequest()) }

amethyst/src/test/java/com/vitorpamplona/amethyst/service/uploads/hls/HlsVideoEventBuilderTest.kt

@@ -120,8 +120,8 @@ class HlsVideoEventBuilderTest {
     fun landscapeRenditionsBuildHorizontalTemplateKind34235() {
         val result = HlsVideoEventBuilder.build(input(landscapeRenditions))
 
-        assertTrue("expected Horizontal template", result is HlsVideoEventTemplate.Horizontal)
-        val template = (result as HlsVideoEventTemplate.Horizontal).template
+        assertTrue("expected Horizontal template", result.template is HlsVideoEventTemplate.Horizontal)
+        val template = (result.template as HlsVideoEventTemplate.Horizontal).template
         assertEquals(VideoHorizontalEvent.KIND, template.kind)
         assertEquals("A cool video", template.content)
     }
@@ -130,15 +130,15 @@ class HlsVideoEventBuilderTest {
     fun portraitRenditionsBuildVerticalTemplateKind34236() {
         val result = HlsVideoEventBuilder.build(input(portraitRenditions))
 
-        assertTrue("expected Vertical template", result is HlsVideoEventTemplate.Vertical)
-        val template = (result as HlsVideoEventTemplate.Vertical).template
+        assertTrue("expected Vertical template", result.template is HlsVideoEventTemplate.Vertical)
+        val template = (result.template as HlsVideoEventTemplate.Vertical).template
         assertEquals(VideoVerticalEvent.KIND, template.kind)
     }
 
     @Test
     fun horizontalTemplateHasTitleAndDTag() {
         val result = HlsVideoEventBuilder.build(input(landscapeRenditions))
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
 
         val title = tags.findTag("title")
         assertNotNull(title)
@@ -152,7 +152,7 @@ class HlsVideoEventBuilderTest {
     @Test
     fun templateContainsOneImetaForMasterAndOnePerRendition() {
         val result = HlsVideoEventBuilder.build(input(landscapeRenditions))
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
 
         val imetas = tags.findAllTags("imeta")
         // 1 master + 2 renditions
@@ -181,7 +181,7 @@ class HlsVideoEventBuilderTest {
             HlsVideoEventBuilder.build(
                 input(landscapeRenditions, duration = 123),
             )
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
 
         val duration = tags.findTag("duration")
         assertNotNull(duration)
@@ -191,7 +191,7 @@ class HlsVideoEventBuilderTest {
     @Test
     fun noDurationTagWhenNotProvided() {
         val result = HlsVideoEventBuilder.build(input(landscapeRenditions))
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
         assertNull(tags.findTag("duration"))
     }
 
@@ -201,7 +201,7 @@ class HlsVideoEventBuilderTest {
             HlsVideoEventBuilder.build(
                 input(landscapeRenditions, contentWarning = "NSFW"),
             )
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
 
         val warning = tags.findTag("content-warning")
         assertNotNull(warning)
@@ -211,14 +211,14 @@ class HlsVideoEventBuilderTest {
     @Test
     fun noContentWarningTagWhenNull() {
         val result = HlsVideoEventBuilder.build(input(landscapeRenditions))
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
         assertNull(tags.findTag("content-warning"))
     }
 
     @Test
     fun horizontalTemplateCarriesAutoGeneratedAltTag() {
         val result = HlsVideoEventBuilder.build(input(landscapeRenditions))
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
         val alt = tags.findTag("alt")
         assertNotNull(alt)
         assertEquals(VideoHorizontalEvent.ALT_DESCRIPTION, alt!![1])
@@ -227,7 +227,7 @@ class HlsVideoEventBuilderTest {
     @Test
     fun verticalTemplateCarriesVerticalAltTag() {
         val result = HlsVideoEventBuilder.build(input(portraitRenditions))
-        val tags = (result as HlsVideoEventTemplate.Vertical).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Vertical).template.tags
         val alt = tags.findTag("alt")
         assertNotNull(alt)
         assertEquals(VideoVerticalEvent.ALT_DESCRIPTION, alt!![1])
@@ -239,7 +239,7 @@ class HlsVideoEventBuilderTest {
             HlsVideoEventBuilder.build(
                 input(landscapeRenditions, posterUrl = "https://cdn.test/poster.jpg"),
             )
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
 
         val imetas = tags.findAllTags("imeta")
         // 1 master + 2 renditions, each must carry image <posterUrl>
@@ -253,7 +253,7 @@ class HlsVideoEventBuilderTest {
     @Test
     fun noPosterUrlMeansNoImagePropertyOnImetas() {
         val result = HlsVideoEventBuilder.build(input(landscapeRenditions))
-        val tags = (result as HlsVideoEventTemplate.Horizontal).template.tags
+        val tags = (result.template as HlsVideoEventTemplate.Horizontal).template.tags
 
         val imetas = tags.findAllTags("imeta")
         imetas.forEach { imeta ->

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/richtext/RichTextParser.kt

@@ -31,6 +31,7 @@ import com.vitorpamplona.quartz.nip92IMeta.imetasByUrl
 import com.vitorpamplona.quartz.nip94FileMetadata.tags.BlurhashTag
 import com.vitorpamplona.quartz.nip94FileMetadata.tags.DimensionTag
 import com.vitorpamplona.quartz.nip94FileMetadata.tags.HashSha256Tag
+import com.vitorpamplona.quartz.nip94FileMetadata.tags.ImageTag
 import com.vitorpamplona.quartz.nip94FileMetadata.tags.MimeTypeTag
 import com.vitorpamplona.quartz.nip94FileMetadata.tags.ThumbhashTag
 import com.vitorpamplona.quartz.utils.Log
@@ -64,7 +65,12 @@ class RichTextParser {
 
         if (contentType != null) {
             isImage = contentType.startsWith("image/")
-            isVideo = contentType.startsWith("video/") || contentType.startsWith("audio/")
+            // HLS playlists are advertised with a non-`video/*` MIME (`application/vnd.apple.mpegurl`
+            // and three legacy aliases). Without these, an imeta-described `.m3u8` falls into the
+            // null bucket below and the renderer drops back to a plain hyperlink — even though
+            // the matching extension would have routed it to MediaUrlVideo. Mirror the canonical
+            // list used by MediaItemCache.toExoPlayerMimeType / GalleryThumb.isHlsMimeType.
+            isVideo = contentType.startsWith("video/") || contentType.startsWith("audio/") || isHlsMimeType(contentType)
             isPdf = contentType.startsWith("application/pdf")
         } else if (fullUrl.startsWith("data:")) {
             isImage = fullUrl.startsWith("data:image/")
@@ -99,6 +105,10 @@ class RichTextParser {
                 dim = frags[DimensionTag.TAG_NAME]?.let { DimensionTag.parse(it) } ?: tags[DimensionTag.TAG_NAME]?.firstOrNull()?.let { DimensionTag.parse(it) },
                 contentWarning = frags[ContentWarningTag.TAG_NAME] ?: tags[ContentWarningTag.TAG_NAME]?.firstOrNull(),
                 uri = callbackUri,
+                // Poster URL from the imeta's `image` property — downstream gallery-add reads
+                // this as the entry's `image` tag so the gallery thumbnail can render the
+                // poster JPEG instead of falling back to the blurhash placeholder.
+                artworkUri = frags[ImageTag.TAG_NAME] ?: tags[ImageTag.TAG_NAME]?.firstOrNull(),
                 mimeType = contentType,
                 thumbhash = frags[ThumbhashTag.TAG_NAME] ?: tags[ThumbhashTag.TAG_NAME]?.firstOrNull(),
                 authorPubKey = authorPubKey,
@@ -457,6 +467,17 @@ class RichTextParser {
             return videoExtensions.any { removedParamsFromUrl.endsWith(it) }
         }
 
+        // Mirrors the canonical HLS-playlist MIME list also kept in MediaItemCache.toExoPlayerMimeType.
+        // Called per URL during feed render — uses `equals(ignoreCase)` instead of `lowercase()` to
+        // avoid a per-call String allocation on the common non-HLS path.
+        fun isHlsMimeType(mimeType: String?): Boolean {
+            if (mimeType == null) return false
+            return mimeType.equals("application/vnd.apple.mpegurl", ignoreCase = true) ||
+                mimeType.equals("application/x-mpegurl", ignoreCase = true) ||
+                mimeType.equals("audio/x-mpegurl", ignoreCase = true) ||
+                mimeType.equals("audio/mpegurl", ignoreCase = true)
+        }
+
         fun isPdfUrl(url: String): Boolean {
             val removedParamsFromUrl = removeQueryParamsForExtensionComparison(url)
             return pdfExtensions.any { removedParamsFromUrl.endsWith(it) }