resize images for lower mem footprint

app/src/main/java/com/lagradost/cloudstream3/ui/player/AbstractPlayerFragment.kt

@@ -37,6 +37,7 @@ import com.lagradost.cloudstream3.CommonActivity.canEnterPipMode
 import com.lagradost.cloudstream3.CommonActivity.isInPIPMode
 import com.lagradost.cloudstream3.CommonActivity.keyEventListener
 import com.lagradost.cloudstream3.CommonActivity.playerEventListener
+import com.lagradost.cloudstream3.CommonActivity.screenWidth
 import com.lagradost.cloudstream3.CommonActivity.showToast
 import com.lagradost.cloudstream3.R
 import com.lagradost.cloudstream3.mvvm.logError
@@ -137,8 +138,10 @@ abstract class AbstractPlayerFragment(
         }
     }
 
-    private fun updateIsPlaying(wasPlaying : CSPlayerLoading,
-                                isPlaying : CSPlayerLoading) {
+    private fun updateIsPlaying(
+        wasPlaying: CSPlayerLoading,
+        isPlaying: CSPlayerLoading
+    ) {
         val isPlayingRightNow = CSPlayerLoading.IsPlaying == isPlaying
         val isPausedRightNow = CSPlayerLoading.IsPaused == isPlaying
 
@@ -186,7 +189,11 @@ abstract class AbstractPlayerFragment(
         canEnterPipMode = isPlayingRightNow && hasPipModeSupport
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             activity?.let { act ->
-                PlayerPipHelper.updatePIPModeActions(act, isPlayingRightNow, player.getAspectRatio())
+                PlayerPipHelper.updatePIPModeActions(
+                    act,
+                    isPlayingRightNow,
+                    player.getAspectRatio()
+                )
             }
         }
     }
@@ -381,30 +388,39 @@ abstract class AbstractPlayerFragment(
             is ResizedEvent -> {
                 playerDimensionsLoaded(event.width, event.height)
             }
+
             is PlayerAttachedEvent -> {
                 playerUpdated(event.player)
             }
+
             is SubtitlesUpdatedEvent -> {
                 subtitlesChanged()
             }
+
             is TimestampSkippedEvent -> {
                 onTimestampSkipped(event.timestamp)
             }
+
             is TimestampInvokedEvent -> {
                 onTimestamp(event.timestamp)
             }
+
             is TracksChangedEvent -> {
                 onTracksInfoChanged()
             }
+
             is EmbeddedSubtitlesFetchedEvent -> {
                 embeddedSubtitlesFetched(event.tracks)
             }
+
             is ErrorEvent -> {
                 playerError(event.error)
             }
+
             is RequestAudioFocusEvent -> {
                 requestAudioFocus()
             }
+
             is EpisodeSeekEvent -> {
                 when (event.offset) {
                     -1 -> prevEpisode()
@@ -412,12 +428,15 @@ abstract class AbstractPlayerFragment(
                     else -> {}
                 }
             }
+
             is StatusEvent -> {
                 updateIsPlaying(wasPlaying = event.wasPlaying, isPlaying = event.isPlaying)
             }
+
             is PositionEvent -> {
                 playerPositionChanged(position = event.toMs, duration = event.durationMs)
             }
+
             is VideoEndedEvent -> {
                 context?.let { ctx ->
                     // Only play next episode if autoplay is on (default)
@@ -434,6 +453,7 @@ abstract class AbstractPlayerFragment(
                     }
                 }
             }
+
             is PauseEvent -> Unit
             is PlayEvent -> Unit
         }
@@ -495,17 +515,32 @@ abstract class AbstractPlayerFragment(
             subView = playerView?.findViewById(R.id.exo_subtitles)
             subStyle = SubtitlesFragment.getCurrentSavedStyle()
             player.initSubtitles(subView, subtitleHolder, subStyle)
+            (player.imageGenerator as? PreviewGenerator)?.params = ImageParams.new16by9(screenWidth)
 
+            /*previewImageView?.doOnLayout {
+                (player.imageGenerator as? PreviewGenerator)?.params = ImageParams(
+                    it.measuredWidth,
+                    it.measuredHeight
+                )
+            }*/
             /** this might seam a bit fucky and that is because it is, the seek event is captured twice, once by the player
              * and once by the UI even if it should only be registered once by the UI */
-            playerView?.findViewById<DefaultTimeBar>(R.id.exo_progress)?.addListener(object : TimeBar.OnScrubListener {
+            playerView?.findViewById<DefaultTimeBar>(R.id.exo_progress)
+                ?.addListener(object : TimeBar.OnScrubListener {
                     override fun onScrubStart(timeBar: TimeBar, position: Long) = Unit
                     override fun onScrubMove(timeBar: TimeBar, position: Long) = Unit
                     override fun onScrubStop(timeBar: TimeBar, position: Long, canceled: Boolean) {
                         if (canceled) return
                         val playerDuration = player.getDuration() ?: return
                         val playerPosition = player.getPosition() ?: return
-                    mainCallback(PositionEvent(source = PlayerEventSource.UI, durationMs = playerDuration, fromMs = playerPosition, toMs = position))
+                        mainCallback(
+                            PositionEvent(
+                                source = PlayerEventSource.UI,
+                                durationMs = playerDuration,
+                                fromMs = playerPosition,
+                                toMs = position
+                            )
+                        )
                     }
                 })
 

app/src/main/java/com/lagradost/cloudstream3/ui/player/CS3IPlayer.kt

@@ -100,7 +100,7 @@ class CS3IPlayer : IPlayer {
     var simpleCacheSize = 0L
     var videoBufferMs = 0L
 
-    private val imageGenerator = PreviewGenerator()
+    val imageGenerator = IPreviewGenerator.new()
 
     private val seekActionTime = 30000L
 
@@ -224,24 +224,30 @@ class CS3IPlayer : IPlayer {
 
         // release the current exoplayer and cache
         releasePlayer()
+
         if (link != null) {
             // only video support atm
+            (imageGenerator as? PreviewGenerator)?.let { gen ->
                 if (preview) {
-                imageGenerator.load(link, sameEpisode)
+                    gen.load(link, sameEpisode)
                 } else {
-                imageGenerator.clear(sameEpisode)
+                    gen.clear(sameEpisode)
+                }
             }
             loadOnlinePlayer(context, link)
         } else if (data != null) {
+            (imageGenerator as? PreviewGenerator)?.let { gen ->
                 if (preview) {
-                imageGenerator.load(context, data, sameEpisode)
+                    gen.load(context, data, sameEpisode)
                 } else {
-                imageGenerator.clear(sameEpisode)
+                    gen.clear(sameEpisode)
+                }
             }
             loadOfflinePlayer(context, data)
         } else {
             throw IllegalArgumentException("Requires link or uri")
         }
+
     }
 
     override fun setActiveSubtitles(subtitles: Set<SubtitleData>) {
@@ -537,7 +543,10 @@ class CS3IPlayer : IPlayer {
          **/
         var preferredAudioTrackLanguage: String? = null
             get() {
-                return field ?: getKey("$currentAccount/$PREFERRED_AUDIO_LANGUAGE_KEY", field)?.also {
+                return field ?: getKey(
+                    "$currentAccount/$PREFERRED_AUDIO_LANGUAGE_KEY",
+                    field
+                )?.also {
                     field = it
                 }
             }

app/src/main/java/com/lagradost/cloudstream3/ui/player/PreviewGenerator.kt

@@ -4,9 +4,12 @@ import android.content.Context
 import android.graphics.Bitmap
 import android.media.MediaMetadataRetriever
 import android.net.Uri
+import android.os.Build
 import android.util.Log
 import androidx.annotation.WorkerThread
+import androidx.core.graphics.scale
 import com.lagradost.cloudstream3.mvvm.logError
+import com.lagradost.cloudstream3.ui.settings.SettingsFragment
 import com.lagradost.cloudstream3.utils.Coroutines.ioSafe
 import com.lagradost.cloudstream3.utils.ExtractorLink
 import com.lagradost.cloudstream3.utils.ExtractorLinkType
@@ -25,21 +28,98 @@ import kotlin.math.log2
 const val MAX_LOD = 6
 const val MIN_LOD = 3
 
+data class ImageParams(
+    val width: Int,
+    val height: Int,
+) {
+    companion object {
+        val DEFAULT = ImageParams(200, 320)
+        fun new16by9(width: Int): ImageParams {
+            if (width < 100) {
+                return DEFAULT
+            }
+            return ImageParams(
+                width / 4,
+                (width * 9) / (4 * 16)
+            )
+        }
+    }
+
+    init {
+        assert(width > 0 && height > 0)
+    }
+}
+
 interface IPreviewGenerator {
     fun hasPreview(): Boolean
     fun getPreviewImage(fraction: Float): Bitmap?
     fun release()
 
+    var params: ImageParams
+
     var durationMs: Long
     var loadedImages: Int
+
+    companion object {
+        fun new(): IPreviewGenerator {
+            /** because TV has low ram + not show we disable this for now */
+            return if (SettingsFragment.isTrueTvSettings()) {
+                empty()
+            } else {
+                PreviewGenerator()
+            }
+        }
+
+        fun empty(): IPreviewGenerator {
+            return NoPreviewGenerator()
+        }
+    }
+}
+
+private fun rescale(image: Bitmap, params: ImageParams): Bitmap {
+    if (image.width <= params.width && image.height <= params.height) return image
+    val new = image.scale(params.width, params.height)
+    // throw away the old image
+    if (new != image) {
+        image.recycle()
+    }
+    return new
+}
+
+/** rescale to not take up as much memory */
+private fun MediaMetadataRetriever.image(timeUs: Long, params: ImageParams): Bitmap? {
+    /*if (timeUs <= 0 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+        try {
+            val primary = this.primaryImage
+            if (primary != null) {
+                return rescale(primary, params)
+            }
+        } catch (t: Throwable) {
+            logError(t)
+        }
+    }*/
+
+    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
+        this.getScaledFrameAtTime(
+            timeUs,
+            MediaMetadataRetriever.OPTION_CLOSEST_SYNC,
+            params.width,
+            params.height
+        )
+    } else {
+        return rescale(this.getFrameAtTime(timeUs) ?: return null, params)
+    }
 }
 
 /** PreviewGenerator that hides the implementation details of the sub generators that is used, used for source switch cache */
 class PreviewGenerator : IPreviewGenerator {
+
     /** the most up to date generator, will always mirror the actual source in the player */
     private var currentGenerator: IPreviewGenerator = NoPreviewGenerator()
+
     /** the longest generated preview of the same episode */
     private var lastGenerator: IPreviewGenerator = NoPreviewGenerator()
+
     /** always NoPreviewGenerator, used as a cache for nothing */
     private val dummy: IPreviewGenerator = NoPreviewGenerator()
 
@@ -76,6 +156,14 @@ class PreviewGenerator : IPreviewGenerator {
         currentGenerator = NoPreviewGenerator()
     }
 
+    override var params: ImageParams = ImageParams.DEFAULT
+        set(value) {
+            field = value
+            lastGenerator.params = value
+            backupGenerator.params = value
+            currentGenerator.params = value
+        }
+
     override var durationMs: Long
         get() = currentGenerator.durationMs
         set(_) {}
@@ -110,13 +198,13 @@ class PreviewGenerator : IPreviewGenerator {
 
         when (link.type) {
             ExtractorLinkType.M3U8 -> {
-                currentGenerator = M3u8PreviewGenerator().apply {
+                currentGenerator = M3u8PreviewGenerator(params).apply {
                     load(url = link.url, headers = link.getAllHeaders())
                 }
             }
 
             ExtractorLinkType.VIDEO -> {
-                currentGenerator = Mp4PreviewGenerator().apply {
+                currentGenerator = Mp4PreviewGenerator(params).apply {
                     load(url = link.url, headers = link.getAllHeaders())
                 }
             }
@@ -129,21 +217,25 @@ class PreviewGenerator : IPreviewGenerator {
 
     fun load(context: Context, link: ExtractorUri, keepCache: Boolean) {
         clear(keepCache)
-        currentGenerator = Mp4PreviewGenerator().apply {
+        currentGenerator = Mp4PreviewGenerator(params).apply {
             load(keepCache = keepCache, context = context, uri = link.uri)
         }
     }
 }
 
+@Suppress("UNUSED_PARAMETER")
 private class NoPreviewGenerator : IPreviewGenerator {
     override fun hasPreview(): Boolean = false
     override fun getPreviewImage(fraction: Float): Bitmap? = null
     override fun release() = Unit
+    override var params: ImageParams
+        get() = ImageParams(0, 0)
+        set(value) {}
     override var durationMs: Long = 0L
     override var loadedImages: Int = 0
 }
 
-private class M3u8PreviewGenerator : IPreviewGenerator {
+private class M3u8PreviewGenerator(override var params: ImageParams) : IPreviewGenerator {
     // generated images 1:1 to idx of hsl
     private var images: Array<Bitmap?> = arrayOf()
 
@@ -194,6 +286,9 @@ private class M3u8PreviewGenerator : IPreviewGenerator {
     private fun clear() {
         synchronized(images) {
             currentJob?.cancel()
+            // for (i in images.indices) {
+            //     images[i]?.recycle()
+            // }
             images = arrayOf()
             prefixSum = arrayOf()
             loadedImages = 0
@@ -280,7 +375,7 @@ private class M3u8PreviewGenerator : IPreviewGenerator {
                             if (!isActive) {
                                 return@withContext
                             }
-                            val img = retriever.getFrameAtTime(0)
+                            val img = retriever.image(0, params)
                             if (!isActive) {
                                 return@withContext
                             }
@@ -308,7 +403,7 @@ private class M3u8PreviewGenerator : IPreviewGenerator {
     }
 }
 
-private class Mp4PreviewGenerator : IPreviewGenerator {
+private class Mp4PreviewGenerator(override var params: ImageParams) : IPreviewGenerator {
     // lod = level of detail where the number indicates how many ones there is
     // 2^(lod-1) = images
     private var loadedLod = 0
@@ -369,6 +464,10 @@ private class Mp4PreviewGenerator : IPreviewGenerator {
         synchronized(images) {
             loadedLod = 0
             loadedImages = 0
+            // for (i in images.indices) {
+            //    images[i]?.recycle()
+            //     images[i] = null
+            //}
             images.fill(null)
         }
     }
@@ -425,10 +524,7 @@ private class Mp4PreviewGenerator : IPreviewGenerator {
                 val fraction = (1.0f.div((1 shl l).toFloat()) + i * 1.0f.div(items.toFloat()))
                 Log.i(TAG, "Generating preview for ${fraction * 100}%")
                 val frame = durationUs * fraction
-                val img = retriever.getFrameAtTime(
-                    frame.toLong(),
-                    MediaMetadataRetriever.OPTION_CLOSEST_SYNC
-                )
+                val img = retriever.image(frame.toLong(), params);
                 if (!scope.isActive) return
                 if (img == null || img.width <= 1 || img.height <= 1) continue
                 synchronized(images) {