add customizable seek bar

new-player/src/main/java/net/newpipe/newplayer/model/VideoPlayerViewModel.kt

@@ -56,7 +56,8 @@ data class VideoPlayerUIState(
     var uiVisible: Boolean,
     val contentRatio: Float,
     val embeddedUiRatio: Float,
-    val contentFitMode: ContentScale
+    val contentFitMode: ContentScale,
+    val seekerPosition: Float
 ) : Parcelable {
     companion object {
         val DEFAULT = VideoPlayerUIState(
@@ -66,7 +67,8 @@ data class VideoPlayerUIState(
             uiVisible = false,
             contentRatio = 16 / 9F,
             embeddedUiRatio = 16F / 9F,
-            contentFitMode = ContentScale.FIT_INSIDE
+            contentFitMode = ContentScale.FIT_INSIDE,
+            seekerPosition = 0F
         )
     }
 }
@@ -89,6 +91,8 @@ interface VideoPlayerViewModel {
     fun switchToEmbeddedView()
     fun showUi()
     fun hideUi()
+    fun seekPositionChanged(newValue: Float)
+    fun seekingFinished()
 
     interface Listener {
         fun onFullscreenToggle(isFullscreen: Boolean)
@@ -260,6 +264,16 @@ class VideoPlayerViewModelImpl @Inject constructor(
         }
     }
 
+    override fun seekPositionChanged(newValue: Float) {
+        uiVisibilityJob?.cancel()
+        mutableUiState.update { it.copy(seekerPosition = newValue) }
+    }
+
+    override fun seekingFinished() {
+        resetHideUiDelayed()
+        Log.d(TAG, "TODO: Implement seeking Finished")
+    }
+
     override fun switchToEmbeddedView() {
         callbackListener?.onFullscreenToggle(false)
         uiVisibilityJob?.cancel()
@@ -303,6 +317,7 @@ class VideoPlayerViewModelImpl @Inject constructor(
                 println("dummy impl")
             }
 
+
             override fun play() {
                 println("dummy impl")
             }
@@ -323,6 +338,14 @@ class VideoPlayerViewModelImpl @Inject constructor(
                 println("dummy impl")
             }
 
+            override fun seekPositionChanged(newValue: Float) {
+                println("dummy impl")
+            }
+
+            override fun seekingFinished() {
+                println("dummy impl")
+            }
+
             override fun pause() {
                 println("dummy pause")
             }

new-player/src/main/java/net/newpipe/newplayer/ui/VideoPlayerControllerUI.kt

@@ -91,6 +91,7 @@ import androidx.compose.ui.unit.DpOffset
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import net.newpipe.newplayer.R
+import net.newpipe.newplayer.ui.seeker.Seeker
 import net.newpipe.newplayer.ui.theme.VideoPlayerTheme
 import net.newpipe.newplayer.ui.theme.video_player_onSurface
 
@@ -99,6 +100,7 @@ fun VideoPlayerControllerUI(
     isPlaying: Boolean,
     fullscreen: Boolean,
     uiVissible: Boolean,
+    seekPosition: Float,
     play: () -> Unit,
     pause: () -> Unit,
     prevStream: () -> Unit,
@@ -106,7 +108,9 @@ fun VideoPlayerControllerUI(
     switchToFullscreen: () -> Unit,
     switchToEmbeddedView: () -> Unit,
     showUi: () -> Unit,
-    hideUi: () -> Unit
+    hideUi: () -> Unit,
+    seekPositionChanged: (Float) -> Unit,
+    seekingFinished: () -> Unit
 ) {
 
     val insets =
@@ -124,7 +128,7 @@ fun VideoPlayerControllerUI(
             fullscreen = fullscreen
         )
     }
-    AnimatedVisibility(uiVissible){
+    AnimatedVisibility(uiVissible) {
         Surface(
             modifier = Modifier.fillMaxSize(), color = Color(0x75000000)
         ) {
@@ -167,8 +171,11 @@ fun VideoPlayerControllerUI(
                         .defaultMinSize(minHeight = 40.dp)
                         .fillMaxWidth(),
                     isFullscreen = fullscreen,
+                    seekPosition,
                     switchToFullscreen,
-                    switchToEmbeddedView
+                    switchToEmbeddedView,
+                    seekPositionChanged,
+                    seekingFinished
                 )
             }
 
@@ -432,8 +439,11 @@ private fun CenterControllButton(
 private fun BottomUI(
     modifier: Modifier,
     isFullscreen: Boolean,
+    seekPosition: Float,
     switchToFullscreen: () -> Unit,
-    switchToEmbeddedView: () -> Unit
+    switchToEmbeddedView: () -> Unit,
+    seekPositionChanged: (Float) -> Unit,
+    seekingFinished: () -> Unit
 ) {
 
     Row(
@@ -442,8 +452,17 @@ private fun BottomUI(
         modifier = modifier
     ) {
         Text("00:06:45")
-        Slider(value = 0.4F, onValueChange = {}, modifier = Modifier.weight(1F))
+        Seeker(
-        Text("00:09:40")
+            modifier.weight(1F),
+            value = seekPosition,
+            onValueChange = seekPositionChanged,
+            onValueChangeFinished = seekingFinished
+        )
+
+        //Slider(value = 0.4F, onValueChange = {}, modifier = Modifier.weight(1F))
+
+        //Text("00:09:40")
+
         IconButton(onClick = if (isFullscreen) switchToEmbeddedView else switchToFullscreen) {
             Icon(
                 imageVector = if (isFullscreen) Icons.Filled.FullscreenExit
@@ -451,6 +470,7 @@ private fun BottomUI(
                 contentDescription = stringResource(R.string.widget_description_toggle_fullscreen)
             )
         }
+
     }
 }
 
@@ -482,6 +502,7 @@ fun VideoPlayerControllerUIPreviewEmbeded() {
             VideoPlayerControllerUI(isPlaying = false,
                 fullscreen = false,
                 uiVissible = true,
+                seekPosition = 0.3F,
                 play = {},
                 pause = {},
                 prevStream = {},
@@ -489,7 +510,9 @@ fun VideoPlayerControllerUIPreviewEmbeded() {
                 switchToFullscreen = {},
                 switchToEmbeddedView = {},
                 showUi = {},
-                hideUi = {})
+                hideUi = {},
+                seekPositionChanged = {},
+                seekingFinished = {})
         }
     }
 }
@@ -502,6 +525,7 @@ fun VideoPlayerControllerUIPreviewLandscape() {
             VideoPlayerControllerUI(isPlaying = true,
                 fullscreen = true,
                 uiVissible = true,
+                seekPosition = 0.3F,
                 play = {},
                 pause = {},
                 prevStream = {},
@@ -509,7 +533,9 @@ fun VideoPlayerControllerUIPreviewLandscape() {
                 switchToEmbeddedView = {},
                 switchToFullscreen = {},
                 showUi = {},
-                hideUi = {})
+                hideUi = {},
+                seekPositionChanged = {},
+                seekingFinished = {})
         }
     }
 }
@@ -523,6 +549,7 @@ fun VideoPlayerControllerUIPreviewPortrait() {
                 isPlaying = false,
                 fullscreen = true,
                 uiVissible = true,
+                seekPosition = 0.3F,
                 play = {},
                 pause = {},
                 prevStream = {},
@@ -530,7 +557,9 @@ fun VideoPlayerControllerUIPreviewPortrait() {
                 switchToEmbeddedView = {},
                 switchToFullscreen = {},
                 showUi = {},
-                hideUi = {})
+                hideUi = {},
+                seekPositionChanged = {},
+                seekingFinished = {})
         }
     }
 }

new-player/src/main/java/net/newpipe/newplayer/ui/VideoPlayerUI.kt

@@ -118,6 +118,7 @@ fun VideoPlayerUI(
                 isPlaying = uiState.playing,
                 fullscreen = uiState.fullscreen,
                 uiVissible = uiState.uiVissible,
+                seekPosition = uiState.seekerPosition,
                 play = viewModel::play,
                 pause = viewModel::pause,
                 prevStream = viewModel::prevStream,
@@ -125,7 +126,9 @@ fun VideoPlayerUI(
                 switchToFullscreen = viewModel::switchToFullscreen,
                 switchToEmbeddedView = viewModel::switchToEmbeddedView,
                 showUi = viewModel::showUi,
-                hideUi = viewModel::hideUi
+                hideUi = viewModel::hideUi,
+                seekPositionChanged = viewModel::seekPositionChanged,
+                seekingFinished = viewModel::seekingFinished
             )
         }
     }

new-player/src/main/java/net/newpipe/newplayer/ui/seeker/Seeker.kt

@@ -0,0 +1,587 @@
+/*
+ * Copyright 2023 Vivek Singh
+ *
+ * @Author Vivek Singh
+ * @Author Christian Schabesberger
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Original code was taken from: https://github.com/2307vivek/Seeker/
+ *
+ */
+
+package net.newpipe.newplayer.ui.seeker
+
+import androidx.annotation.FloatRange
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.MutatePriority
+import androidx.compose.foundation.background
+import androidx.compose.foundation.focusable
+import androidx.compose.foundation.gestures.Orientation
+import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.gestures.draggable
+import androidx.compose.foundation.hoverable
+import androidx.compose.foundation.indication
+import androidx.compose.foundation.interaction.Interaction
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxWithConstraints
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.offset
+import androidx.compose.foundation.layout.requiredSizeIn
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.widthIn
+import androidx.compose.foundation.progressSemantics
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.ripple.rememberRipple
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.rememberUpdatedState
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.composed
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.graphics.BlendMode
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.StrokeCap
+import androidx.compose.ui.graphics.drawscope.DrawScope
+import androidx.compose.ui.graphics.drawscope.Stroke
+import androidx.compose.ui.graphics.drawscope.inset
+import androidx.compose.ui.graphics.drawscope.rotateRad
+import androidx.compose.ui.graphics.drawscope.translate
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalLayoutDirection
+import androidx.compose.ui.semantics.disabled
+import androidx.compose.ui.semantics.semantics
+import androidx.compose.ui.semantics.setProgress
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.unit.LayoutDirection
+import kotlinx.coroutines.launch
+import kotlin.math.atan2
+
+/**
+ * A seekbar/slider with support for read ahead indicator and segments. The segments can be
+ * separated with gaps in between or with their respective colors, or by both.
+ *
+ * Read ahead indicator shows the amount of content which is ready to use.
+ *
+ * @param modifier modifiers for the seeker layout
+ * @param state state for Seeker
+ * @param value current value of the seeker. If outside of [range] provided, value will be
+ * coerced to this range.
+ * @param thumbValue current value of the thumb. This allows the thumb to move independent of the
+ * progress position. If outside of [range] provided, value will be coerced to this range.
+ * @param progressStartPosition starting point of the indicator as a fraction of track width.
+ * The passed value will be clamped between 0 and 1.
+ * @param readAheadValue the read ahead value for seeker. If outside of [range] provided, value will be
+ * coerced to this range.
+ * @param onValueChange lambda in which value should be updated
+ * @param onValueChangeFinished lambda to be invoked when value change has ended. This callback
+ * shouldn't be used to update the slider value (use [onValueChange] for that), but rather to
+ * know when the user has completed selecting a new value by ending a drag or a click.
+ * @param segments a list of [Segment] for seeker. The track will be divided into different parts based
+ * on the provided start values.
+ * The first segment must start form the start value of the [range], and all the segments must lie in
+ * the specified [range], else an [IllegalArgumentException] will be thrown.
+ * will be thrown.
+ * @param enabled whether or not component is enabled and can be interacted with or not
+ * @param colors [SeekerColors] that will be used to determine the color of the Slider parts in
+ * different state. See [SeekerDefaults.seekerColors] to customize.
+ * @param dimensions [SeekerDimensions] that will be used to determine the dimensions of
+ * different Seeker parts in different state. See [SeekerDefaults.seekerDimensions] to customize.
+ * @param interactionSource the [MutableInteractionSource] representing the stream of
+ * [Interaction]s for this Seeker. You can create and pass in your own remembered
+ * [MutableInteractionSource] if you want to observe [Interaction]s and customize the
+ * appearance / behavior of this Seeker in different [Interaction]s.
+ * */
+@Composable
+fun Seeker(
+    modifier: Modifier = Modifier,
+    state: SeekerState = rememberSeekerState(),
+    value: Float,
+    thumbValue: Float = value,
+    range: ClosedFloatingPointRange<Float> = 0f..1f,
+    @FloatRange(from = 0.0, to = 1.0)
+    progressStartPosition: Float = 0f,
+    readAheadValue: Float = lerp(range.start, range.endInclusive, progressStartPosition),
+    onValueChange: (Float) -> Unit,
+    onValueChangeFinished: (() -> Unit)? = null,
+    segments: List<Segment> = emptyList(),
+    enabled: Boolean = true,
+    colors: SeekerColors = SeekerDefaults.seekerColors(),
+    dimensions: SeekerDimensions = SeekerDefaults.seekerDimensions(),
+    interactionSource: MutableInteractionSource = remember { MutableInteractionSource() },
+) {
+    if (segments.isNotEmpty()) {
+        require(segments.first().start == range.start) {
+            "the first segment should start from range start value"
+        }
+        segments.forEach {
+            require(it.start in range) {
+                "segment must start from withing the range."
+            }
+        }
+    }
+
+    val onValueChangeState by rememberUpdatedState(onValueChange)
+
+    BoxWithConstraints(
+        modifier = modifier
+            .requiredSizeIn(
+                minHeight = SeekerDefaults.ThumbRippleRadius * 2,
+                minWidth = SeekerDefaults.ThumbRippleRadius * 2
+            )
+            .progressSemantics(value, range, onValueChange, onValueChangeFinished, enabled)
+            .focusable(enabled, interactionSource)
+    ) {
+        val thumbRadius by dimensions.thumbRadius()
+        val trackStart: Float
+        val endPx = constraints.maxWidth.toFloat()
+        val widthPx: Float
+
+        val isRtl = LocalLayoutDirection.current == LayoutDirection.Rtl
+
+        with(LocalDensity.current) {
+            trackStart = thumbRadius.toPx()
+            widthPx = endPx - (trackStart * 2)
+        }
+
+        val segmentStarts = remember(segments, range, widthPx) {
+            segmentToPxValues(segments, range, widthPx)
+        }
+
+        LaunchedEffect(thumbValue, segments) {
+            state.currentSegment(thumbValue, segments)
+        }
+
+        val valuePx = remember(value, widthPx, range) {
+            valueToPx(value, widthPx, range)
+        }
+
+        val thumbValuePx = remember(thumbValue, widthPx, range) {
+            when (thumbValue) {
+                value -> valuePx // reuse valuePx if thumbValue equal to value
+                else -> valueToPx(thumbValue, widthPx, range)
+            }
+        }
+
+        val readAheadValuePx = remember(readAheadValue, widthPx, range) {
+            valueToPx(readAheadValue, widthPx, range)
+        }
+
+        var dragPositionX by remember { mutableStateOf(0f) }
+        var pressOffset by remember { mutableStateOf(0f) }
+
+        val scope = rememberCoroutineScope()
+
+        val draggableState = state.draggableState
+
+        LaunchedEffect(widthPx, range) {
+            state.onDrag = {
+                dragPositionX += it + pressOffset
+
+                pressOffset = 0f
+                onValueChangeState(pxToValue(dragPositionX, widthPx, range))
+            }
+        }
+
+        val press =
+            Modifier.pointerInput(
+                range,
+                widthPx,
+                endPx,
+                isRtl,
+                enabled,
+                thumbRadius,
+                interactionSource
+            ) {
+                detectTapGestures(
+                    onPress = { position ->
+                        dragPositionX = 0f
+                        pressOffset =
+                            if (!isRtl) position.x - trackStart else (endPx - position.x) - trackStart
+                    },
+                    onTap = {
+                        scope.launch {
+                            draggableState.drag(MutatePriority.UserInput) {
+                                dragBy(0f)
+                            }
+                            onValueChangeFinished?.invoke()
+                        }
+                    }
+                )
+            }
+
+        val drag = Modifier.draggable(
+            state = draggableState,
+            reverseDirection = isRtl,
+            orientation = Orientation.Horizontal,
+            onDragStopped = {
+                onValueChangeFinished?.invoke()
+            },
+            interactionSource = interactionSource
+        )
+
+        Seeker(
+            modifier = if (enabled) press.then(drag) else Modifier,
+            widthPx = widthPx,
+            valuePx = valuePx,
+            thumbValuePx = thumbValuePx,
+            progressStartPosition = progressStartPosition.coerceIn(0f, 1f),
+            readAheadValuePx = readAheadValuePx,
+            enabled = enabled,
+            segments = segmentStarts,
+            colors = colors,
+            dimensions = dimensions,
+            interactionSource = interactionSource
+        )
+    }
+}
+
+@Composable
+private fun Seeker(
+    modifier: Modifier,
+    widthPx: Float,
+    valuePx: Float,
+    thumbValuePx: Float,
+    progressStartPosition: Float,
+    readAheadValuePx: Float,
+    enabled: Boolean,
+    segments: List<SegmentPxs>,
+    colors: SeekerColors,
+    dimensions: SeekerDimensions,
+    interactionSource: MutableInteractionSource
+) {
+    Box(
+        modifier = modifier.defaultSeekerDimensions(dimensions),
+        contentAlignment = Alignment.CenterStart
+    ) {
+        Track(
+            modifier = Modifier.fillMaxSize(),
+            enabled = enabled,
+            segments = segments,
+            colors = colors,
+            widthPx = widthPx,
+            valuePx = valuePx,
+            progressStartPosition = progressStartPosition,
+            readAheadValuePx = readAheadValuePx,
+            dimensions = dimensions
+        )
+        Thumb(
+            valuePx = { thumbValuePx },
+            dimensions = dimensions,
+            colors = colors,
+            enabled = enabled,
+            interactionSource = interactionSource
+        )
+    }
+}
+
+@Composable
+private fun Track(
+    modifier: Modifier,
+    enabled: Boolean,
+    segments: List<SegmentPxs>,
+    colors: SeekerColors,
+    widthPx: Float,
+    valuePx: Float,
+    progressStartPosition: Float,
+    readAheadValuePx: Float,
+    dimensions: SeekerDimensions
+) {
+    val trackColor by colors.trackColor(enabled)
+    val progressColor by colors.progressColor(enabled)
+    val readAheadColor by colors.readAheadColor(enabled)
+    val thumbRadius by dimensions.thumbRadius()
+    val trackHeight by dimensions.trackHeight()
+    val progressHeight by dimensions.progressHeight()
+    val segmentGap by dimensions.gap()
+
+    Canvas(
+        modifier = modifier.graphicsLayer {
+            alpha = 0.99f
+        }
+    ) {
+        val isRtl = layoutDirection == LayoutDirection.Rtl
+        val left = thumbRadius.toPx()
+
+        translate(left = left) {
+            if (segments.isEmpty()) {
+                // draw the track with a single line.
+                drawLine(
+                    start = Offset(rtlAware(0f, widthPx, isRtl), center.y),
+                    end = Offset(rtlAware(widthPx, widthPx, isRtl), center.y),
+                    color = trackColor,
+                    strokeWidth = trackHeight.toPx(),
+                    cap = StrokeCap.Round
+                )
+            } else {
+                // draw segments in their respective color,
+                // excluding gaps (which will be cleared out later)
+                for (index in segments.indices) {
+                    val segment = segments[index]
+                    val segmentColor = when (segment.color) {
+                        Color.Unspecified -> trackColor
+                        else -> segment.color
+                    }
+                    drawSegment(
+                        startPx = rtlAware(segment.startPx, widthPx, isRtl),
+                        endPx = rtlAware(segment.endPx, widthPx, isRtl),
+                        trackColor = segmentColor,
+                        trackHeight = trackHeight.toPx(),
+                        blendMode = BlendMode.SrcOver,
+                        startCap = if (index == 0) StrokeCap.Round else null,
+                        endCap = if (index == segments.lastIndex) StrokeCap.Round else null
+                    )
+                }
+            }
+
+            // readAhead indicator
+            drawLine(
+                start = Offset(rtlAware(widthPx * progressStartPosition, widthPx, isRtl), center.y),
+                end = Offset(rtlAware(readAheadValuePx, widthPx, isRtl), center.y),
+                color = readAheadColor,
+                strokeWidth = progressHeight.toPx(),
+                cap = StrokeCap.Round
+            )
+
+            // progress indicator
+            drawLine(
+                start = Offset(rtlAware(widthPx * progressStartPosition, widthPx, isRtl), center.y),
+                end = Offset(rtlAware(valuePx, widthPx, isRtl), center.y),
+                color = progressColor,
+                strokeWidth = progressHeight.toPx(),
+                cap = StrokeCap.Round
+            )
+
+            // clear segment gaps
+            for (index in segments.indices) {
+                if (index == segments.lastIndex) break // skip "gap" after last segment
+                val segment = segments[index]
+                drawGap(
+                    startPx = rtlAware(segment.endPx - segmentGap.toPx(), widthPx, isRtl),
+                    endPx = rtlAware(segment.endPx, widthPx, isRtl),
+                    trackHeight = trackHeight.toPx(),
+                )
+            }
+        }
+    }
+}
+
+private fun DrawScope.drawLine(
+    color: Color,
+    start: Offset,
+    end: Offset,
+    strokeWidth: Float = Stroke.HairlineWidth,
+    startCap: StrokeCap? = null,
+    endCap: StrokeCap? = null,
+    blendMode: BlendMode
+) {
+    val endOffset = if (endCap != null) {
+        end.copy(x = end.x - strokeWidth)
+    } else {
+        end
+    }
+    inset(horizontal = strokeWidth / 2) {
+        drawLine(
+            color = color,
+            start = start,
+            end = endOffset,
+            strokeWidth = strokeWidth,
+            cap = StrokeCap.Butt,
+        )
+
+        startCap?.let {
+            drawCap(
+                color = color,
+                start = start,
+                end = end,
+                strokeWidth = strokeWidth,
+                cap = it,
+                blendMode = blendMode
+            )
+        }
+
+        endCap?.let {
+            drawCap(
+                color = color,
+                start = endOffset,
+                end = start,
+                strokeWidth = strokeWidth,
+                cap = it,
+                blendMode = blendMode
+            )
+        }
+    }
+}
+
+private fun DrawScope.drawCap(
+    color: Color,
+    start: Offset,
+    end: Offset,
+    strokeWidth: Float = Stroke.HairlineWidth,
+    cap: StrokeCap,
+    blendMode: BlendMode
+) {
+    when (cap) {
+        StrokeCap.Butt -> Unit
+        StrokeCap.Round -> {
+            drawArc(
+                color = color,
+                startAngle = -90f,
+                sweepAngle = 180f,
+                useCenter = true,
+                topLeft = start - Offset(strokeWidth / 2, strokeWidth / 2),
+                size = Size(strokeWidth, strokeWidth),
+                blendMode = blendMode,
+            )
+        }
+
+        StrokeCap.Square -> {
+            val offset = Offset(strokeWidth / 2, strokeWidth / 2)
+            val size = Size(strokeWidth, strokeWidth)
+
+            rotateRad(
+                radians = (end - start).run { atan2(x, y) },
+                pivot = start
+            ) {
+                drawRect(color, topLeft = start - offset, size = size, blendMode = blendMode)
+            }
+        }
+    }
+}
+
+private fun DrawScope.drawSegment(
+    startPx: Float,
+    endPx: Float,
+    trackColor: Color,
+    trackHeight: Float,
+    blendMode: BlendMode,
+    startCap: StrokeCap? = null,
+    endCap: StrokeCap? = null
+) {
+    drawLine(
+        start = Offset(startPx, center.y),
+        end = Offset(endPx, center.y),
+        color = trackColor,
+        strokeWidth = trackHeight,
+        blendMode = blendMode,
+        endCap = endCap,
+        startCap = startCap
+    )
+}
+
+private fun DrawScope.drawGap(
+    startPx: Float,
+    endPx: Float,
+    trackHeight: Float,
+) {
+    drawLine(
+        start = Offset(startPx, center.y),
+        end = Offset(endPx, center.y),
+        color = Color.Black, // any color will do
+        strokeWidth = trackHeight + 2, // add 2 to prevent hairline borders from rounding
+        blendMode = BlendMode.Clear
+    )
+}
+
+@Composable
+private fun Thumb(
+    valuePx: () -> Float,
+    dimensions: SeekerDimensions,
+    colors: SeekerColors,
+    enabled: Boolean,
+    interactionSource: MutableInteractionSource
+) {
+    Spacer(
+        modifier = Modifier
+            .offset {
+                IntOffset(x = valuePx().toInt(), 0)
+            }
+            .indication(
+                interactionSource = interactionSource,
+                indication = rememberRipple(
+                    bounded = false,
+                    radius = SeekerDefaults.ThumbRippleRadius
+                )
+            )
+            .hoverable(interactionSource)
+            .size(dimensions.thumbRadius().value * 2)
+            .clip(CircleShape)
+            .background(colors.thumbColor(enabled = enabled).value)
+    )
+}
+
+private fun Modifier.defaultSeekerDimensions(dimensions: SeekerDimensions) = composed {
+    this.then(
+        Modifier
+            .heightIn(
+                max = (dimensions.thumbRadius().value * 2).coerceAtLeast(SeekerDefaults.MinSliderHeight)
+            )
+            .widthIn(
+                min = SeekerDefaults.MinSliderWidth
+            )
+    )
+}
+
+private fun Modifier.progressSemantics(
+    value: Float,
+    range: ClosedFloatingPointRange<Float>,
+    onValueChange: (Float) -> Unit,
+    onValueChangeFinished: (() -> Unit)? = null,
+    enabled: Boolean
+): Modifier {
+    val coerced = value.coerceIn(range.start, range.endInclusive)
+    return semantics {
+        if (!enabled) disabled()
+        setProgress { targetValue ->
+            val newValue = targetValue.coerceIn(range.start, range.endInclusive)
+
+            if (newValue == coerced) {
+                false
+            } else {
+                onValueChange(newValue)
+                onValueChangeFinished?.invoke()
+                true
+            }
+        }
+    }.progressSemantics(value, range, 0)
+}
+
+@Preview(showBackground = true)
+@Composable
+fun SeekerPreview() {
+    val segments = listOf(
+        Segment(name = "Intro", start = 0f),
+        Segment(name = "Talk 1", start = 0.5f),
+        Segment(name = "Talk 2", start = 0.8f),
+    )
+    Seeker(
+        value = 0.7f,
+        range = 0f..1f,
+        segments = segments,
+        onValueChange = { },
+    )
+}

new-player/src/main/java/net/newpipe/newplayer/ui/seeker/SeekerDefaults.kt

@@ -0,0 +1,309 @@
+/*
+ * Copyright 2023 Vivek Singh
+ *
+ * @Author Vivek Singh
+ * @Author Christian Schabesberger
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Original code was taken from: https://github.com/2307vivek/Seeker/
+ *
+ */
+package net.newpipe.newplayer.ui.seeker
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.Stable
+import androidx.compose.runtime.State
+import androidx.compose.runtime.rememberUpdatedState
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.compositeOver
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import net.newpipe.newplayer.ui.theme.VideoPlayerColorScheme
+
+object SeekerDefaults {
+
+    /**
+     * Creates a [SeekerColors] that represents the different colors used in parts of the
+     * [Seeker] in different states.
+     *
+     * @param progressColor color of the progress indicator.
+     * @param trackColor color of the track.
+     * @param disabledProgressColor color of the progress indicator when the Slider is
+     * disabled.
+     * @param disabledTrackColor color of the track when theSlider is disabled.
+     * @param thumbColor thumb color when enabled
+     * @param disabledThumbColor thumb color when disabled.
+     * @param readAheadColor color of the read ahead indicator.
+     */
+    @Composable
+    fun seekerColors(
+        progressColor: Color = VideoPlayerColorScheme.primary,
+        trackColor: Color = TrackColor,
+        disabledProgressColor: Color = VideoPlayerColorScheme.onSurface.copy(alpha = DisabledProgressAlpha),
+        disabledTrackColor: Color = disabledProgressColor
+            .copy(alpha = DisabledTrackAlpha)
+            .compositeOver(VideoPlayerColorScheme.onSurface),
+        thumbColor: Color = VideoPlayerColorScheme.primary,
+        disabledThumbColor: Color = VideoPlayerColorScheme.onSurface
+            .copy(alpha = 0.0F)
+            .compositeOver(VideoPlayerColorScheme.surface),
+        readAheadColor: Color = ReadAheadColor
+    ): SeekerColors = DefaultSeekerColor(
+        progressColor = progressColor,
+        trackColor = trackColor,
+        disabledProgressColor = disabledProgressColor,
+        disabledTrackColor = disabledTrackColor,
+        thumbColor = thumbColor,
+        disabledThumbColor = disabledThumbColor,
+        readAheadColor = readAheadColor
+    )
+
+    /**
+     * Creates a [SeekerDimensions] which represents dimension of different parts of [Seeker] in
+     * different states.
+     *
+     * @param trackHeight height of the track.
+     * @param progressHeight height of the progress indicator.
+     * @param thumbRadius radius of the thumb slider.
+     * @param gap gap between two segments in the track.
+     * */
+    @Composable
+    fun seekerDimensions(
+        trackHeight: Dp = TrackHeight,
+        progressHeight: Dp = trackHeight,
+        thumbRadius: Dp = ThumbRadius,
+        gap: Dp = Gap
+    ): SeekerDimensions = DefaultSeekerDimensions(
+        trackHeight = trackHeight,
+        progressHeight = progressHeight,
+        thumbRadius = thumbRadius,
+        gap = gap
+    )
+
+    private val TrackColor = Color(0xFFD9D9D9)
+    private val ReadAheadColor = Color(0xFFBDBDBD)
+
+    private const val TrackAlpha = 0.24f
+    private const val ReadAheadAlpha = 0.44f
+    private const val DisabledTrackAlpha = 0.22f
+    private const val DisabledProgressAlpha = 0.32f
+
+    internal val ThumbRadius = 10.dp
+    private val TrackHeight = 4.dp
+    private val Gap = 2.dp
+
+    internal val MinSliderHeight = 48.dp
+    internal val MinSliderWidth = ThumbRadius * 2
+
+    internal val ThumbDefaultElevation = 1.dp
+    internal val ThumbPressedElevation = 6.dp
+
+    internal val ThumbRippleRadius = 24.dp
+}
+
+/**
+ * Represents the colors used by different parts of [Seeker] in different states.
+ *
+ * See [SeekerDefaults.seekerColors] for default implementation.
+ * */
+@Stable
+interface SeekerColors {
+
+    /**
+     * Represents the color used for the seeker's track, depending on [enabled].
+     *
+     * @param enabled whether the [Seeker] is enabled or not
+     */
+    @Composable
+    fun trackColor(enabled: Boolean): State<Color>
+
+    /**
+     * Represents the color used for the seeker's thumb, depending on [enabled].
+     *
+     * @param enabled whether the [Seeker] is enabled or not
+     */
+    @Composable
+    fun thumbColor(enabled: Boolean): State<Color>
+
+    /**
+     * Represents the color used for the seeker's progress indicator, depending on [enabled].
+     *
+     * @param enabled whether the [Seeker] is enabled or not
+     */
+    @Composable
+    fun progressColor(enabled: Boolean): State<Color>
+
+    /**
+     * Represents the color used for the seeker's read ahead indicator, depending on [enabled].
+     *
+     * @param enabled whether the [Seeker] is enabled or not
+     */
+    @Composable
+    fun readAheadColor(enabled: Boolean): State<Color>
+}
+
+/**
+ * Represents the dimensions used by different parts of [Seeker] in different states.
+ *
+ * See [SeekerDefaults.seekerDimensions] for default implementation.
+ * */
+@Stable
+interface SeekerDimensions {
+
+    /**
+     * Represents the height used for the seeker's track.
+     */
+    @Composable
+    fun trackHeight(): State<Dp>
+
+    /**
+     * Represents the height used for the seeker's progress indicator.
+     */
+    @Composable
+    fun progressHeight(): State<Dp>
+
+    /**
+     * Represents the gap used between two segments in seeker's track.
+     */
+    @Composable
+    fun gap(): State<Dp>
+
+    /**
+     * Represents the radius used for seeker's thumb.
+     */
+    @Composable
+    fun thumbRadius(): State<Dp>
+}
+
+@Immutable
+internal class DefaultSeekerDimensions(
+    val trackHeight: Dp,
+    val progressHeight: Dp,
+    val gap: Dp,
+    val thumbRadius: Dp
+) : SeekerDimensions {
+    @Composable
+    override fun trackHeight(): State<Dp> {
+        return rememberUpdatedState(trackHeight)
+    }
+
+    @Composable
+    override fun progressHeight(): State<Dp> {
+        return rememberUpdatedState(progressHeight)
+    }
+
+    @Composable
+    override fun gap(): State<Dp> {
+        return rememberUpdatedState(gap)
+    }
+
+    @Composable
+    override fun thumbRadius(): State<Dp> {
+        return rememberUpdatedState(thumbRadius)
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other == null || this::class != other::class) return false
+
+        other as DefaultSeekerDimensions
+
+        if (trackHeight != other.trackHeight) return false
+        if (progressHeight != other.progressHeight) return false
+        if (gap != other.gap) return false
+        if (thumbRadius != other.thumbRadius) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = trackHeight.hashCode()
+
+        result = 31 * result + progressHeight.hashCode()
+        result = 31 * result + gap.hashCode()
+        result = 31 * result + thumbRadius.hashCode()
+
+        return result
+    }
+}
+
+@Immutable
+internal class DefaultSeekerColor(
+    val progressColor: Color,
+    val trackColor: Color,
+    val disabledTrackColor: Color,
+    val disabledProgressColor: Color,
+    val thumbColor: Color,
+    val disabledThumbColor: Color,
+    val readAheadColor: Color
+) : SeekerColors {
+    @Composable
+    override fun trackColor(enabled: Boolean): State<Color> {
+        return rememberUpdatedState(
+            if (enabled) trackColor else disabledTrackColor
+        )
+    }
+
+    @Composable
+    override fun thumbColor(enabled: Boolean): State<Color> {
+        return rememberUpdatedState(
+            if (enabled) thumbColor else disabledThumbColor
+        )
+    }
+
+    @Composable
+    override fun progressColor(enabled: Boolean): State<Color> {
+        return rememberUpdatedState(
+            if (enabled) progressColor else disabledProgressColor
+        )
+    }
+
+    @Composable
+    override fun readAheadColor(enabled: Boolean): State<Color> {
+        return rememberUpdatedState(
+            readAheadColor
+        )
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other == null || this::class != other::class) return false
+
+        other as DefaultSeekerColor
+
+        if (progressColor != other.progressColor) return false
+        if (trackColor != other.trackColor) return false
+        if (disabledTrackColor != other.disabledTrackColor) return false
+        if (disabledProgressColor != other.disabledProgressColor) return false
+        if (thumbColor != other.thumbColor) return false
+        if (disabledThumbColor != other.disabledThumbColor) return false
+        if (readAheadColor != other.readAheadColor) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = progressColor.hashCode()
+
+        result = 31 * result + trackColor.hashCode()
+        result = 31 * result + disabledTrackColor.hashCode()
+        result = 31 * result + disabledProgressColor.hashCode()
+        result = 31 * result + thumbColor.hashCode()
+        result = 31 * result + disabledThumbColor.hashCode()
+        result = 31 * result + readAheadColor.hashCode()
+
+        return result
+    }
+}

new-player/src/main/java/net/newpipe/newplayer/ui/seeker/SeekerState.kt

@@ -0,0 +1,90 @@
+ /*
+ * Copyright 2023 Vivek Singh
+ *
+ * @Author Vivek Singh
+ * @Author Christian Schabesberger
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Original code was taken from: https://github.com/2307vivek/Seeker/
+ *
+ */
+package net.newpipe.newplayer.ui.seeker
+
+import androidx.compose.foundation.gestures.DraggableState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.Stable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.graphics.Color
+
+/**
+ * A state object which can be hoisted to observe the current segment of Seeker. In most cases this
+ * will be created by [rememberSeekerState]
+ * */
+@Stable
+class SeekerState() {
+
+    /**
+     * The current segment corresponding to the current seeker value.
+     * */
+    var currentSegment: Segment by mutableStateOf(Segment.Unspecified)
+
+    internal var onDrag: ((Float) -> Unit)? = null
+
+    internal val draggableState = DraggableState {
+        onDrag?.invoke(it)
+    }
+
+    internal fun currentSegment(
+        value: Float,
+        segments: List<Segment>
+    ) = (segments.findLast { value >= it.start } ?: Segment.Unspecified).also { this.currentSegment = it }
+}
+
+/**
+ * Creates a SeekerState which will be remembered across compositions.
+ * */
+@Composable
+fun rememberSeekerState(): SeekerState = remember {
+    SeekerState()
+}
+
+/**
+ * A class to hold information about a segment.
+ * @param name name of the segment
+ * @param start the value at which this segment should start in the track. This should must be in the
+ * range of the Seeker range values.
+ * @param color the color of the segment
+ * */
+@Immutable
+data class Segment(
+    val name: String,
+    val start: Float,
+    val color: Color = Color.Unspecified
+) {
+    companion object {
+        val Unspecified = Segment(name = "", start = 0f)
+    }
+}
+
+@Immutable
+internal data class SegmentPxs(
+    val name: String,
+    val startPx: Float,
+    val endPx: Float,
+    val color: Color
+)

new-player/src/main/java/net/newpipe/newplayer/ui/seeker/SeekerUtils.kt

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2023 Vivek Singh
+ *
+ * @Author Vivek Singh
+ * @Author Christian Schabesberger
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Original code was taken from: https://github.com/2307vivek/Seeker/
+ *
+ */
+package net.newpipe.newplayer.ui.seeker
+
+// returns the corresponding position in pixels of progress in the the slider.
+internal fun valueToPx(
+    value: Float,
+    widthPx: Float,
+    range: ClosedFloatingPointRange<Float>
+): Float {
+    val rangeSIze = range.endInclusive - range.start
+    val p = value.coerceIn(range.start, range.endInclusive)
+    val progressPercent = (p - range.start) * 100 / rangeSIze
+    return (progressPercent * widthPx / 100)
+}
+
+// returns the corresponding progress value for a position in slider
+internal fun pxToValue(
+    position: Float,
+    widthPx: Float,
+    range: ClosedFloatingPointRange<Float>
+): Float {
+    val rangeSize = range.endInclusive - range.start
+    val percent = position * 100 / widthPx
+    return ((percent * (rangeSize) / 100) + range.start).coerceIn(
+        range.start,
+        range.endInclusive
+    )
+}
+
+// converts the start value of a segment to the corresponding start and end pixel values
+// at which the segment will start and end on the track.
+internal fun segmentToPxValues(
+    segments: List<Segment>,
+    range: ClosedFloatingPointRange<Float>,
+    widthPx: Float,
+): List<SegmentPxs> {
+
+    val rangeSize = range.endInclusive - range.start
+    val sortedSegments = segments.distinct().sortedBy { it.start }
+    val segmentStartPxs = sortedSegments.map { segment ->
+
+        // percent of the start of this segment in the range size
+        val percent = (segment.start - range.start) * 100 / rangeSize
+        val startPx = percent * widthPx / 100
+        startPx
+    }
+
+    return sortedSegments.mapIndexed { index, segment ->
+        val endPx = if (index != sortedSegments.lastIndex) segmentStartPxs[index + 1] else widthPx
+        SegmentPxs(
+            name = segment.name,
+            color = segment.color,
+            startPx = segmentStartPxs[index],
+            endPx = endPx
+        )
+    }
+}
+
+internal fun rtlAware(value: Float, widthPx: Float, isRtl: Boolean) =
+    if (isRtl) widthPx - value else value
+
+internal fun lerp(start: Float, end: Float, fraction: Float): Float {
+    return (1 - fraction) * start + fraction * end
+}

new-player/src/main/java/net/newpipe/newplayer/ui/theme/Theme.kt

@@ -25,7 +25,7 @@ import androidx.compose.material3.darkColorScheme
 
 import androidx.compose.runtime.Composable
 
-private val VideoPlayerColorScheme = darkColorScheme(
+val VideoPlayerColorScheme = darkColorScheme(
     primary = video_player_primary,
     onPrimary = video_player_onPrimary,
     primaryContainer = video_player_primaryContainer,

test-app/src/main/java/net/newpipe/newplayer/testapp/MainActivity.kt

@@ -59,10 +59,9 @@ class MainActivity : AppCompatActivity() {
 
         startStreamButton.setOnClickListener {
             newPlayer.playWhenReady = true
-            newPlayer.setStream(getString(R.string.portrait_video_example))
+            newPlayer.setStream(getString(R.string.ccc_6502_video))
         }
 
-
         videoPlayerViewModel.newPlayer = newPlayer
 
         //videoPlayerViewModel.maxContentRatio = 4F/3F