use window manager to determine device rotation in android

Implements HLS-compatible fragmented MP4 recording on Android using
AndroidX Media3 FragmentedMp4Muxer, matching the iOS implementation.

Changes:
- Add FragmentedRecordingManager for fMP4 segment output
- Add ChunkedRecorderInterface to abstract recorder implementations
- Add onInitSegmentReady callback for init segment (init.mp4)
- Update onVideoChunkReady to include segment duration
- RecordingSession now uses FragmentedRecordingManager by default

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package/android/src/main/cpp/OpenGLRenderer.cpp

@@ -17,18 +17,15 @@
 
 namespace vision {
 
-std::unique_ptr<OpenGLRenderer> OpenGLRenderer::CreateWithWindowSurface(std::shared_ptr<OpenGLContext> context,
-                                                                        ANativeWindow* surface,
-                                                                        int rotationDegrees) {
-  return std::unique_ptr<OpenGLRenderer>(new OpenGLRenderer(std::move(context), surface, rotationDegrees));
+std::unique_ptr<OpenGLRenderer> OpenGLRenderer::CreateWithWindowSurface(std::shared_ptr<OpenGLContext> context, ANativeWindow* surface) {
+  return std::unique_ptr<OpenGLRenderer>(new OpenGLRenderer(std::move(context), surface));
 }
 
-OpenGLRenderer::OpenGLRenderer(std::shared_ptr<OpenGLContext> context, ANativeWindow* surface, int rotationDegrees) {
+OpenGLRenderer::OpenGLRenderer(std::shared_ptr<OpenGLContext> context, ANativeWindow* surface) {
   _context = std::move(context);
   _outputSurface = surface;
   _width = ANativeWindow_getWidth(surface);
   _height = ANativeWindow_getHeight(surface);
-  _rotationDegrees = rotationDegrees;
 }
 
 OpenGLRenderer::~OpenGLRenderer() {
@@ -69,7 +66,7 @@ void OpenGLRenderer::renderTextureToSurface(const OpenGLTexture& texture, float*
   glTexParameteri(texture.target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 
   // 4. Draw it using the pass-through shader which also applies transforms
-  _passThroughShader.draw(texture, transformMatrix, _rotationDegrees);
+  _passThroughShader.draw(texture, transformMatrix);
 
   // 5. Swap buffers to pass it to the window surface
   eglSwapBuffers(_context->display, _surface);

package/android/src/main/cpp/OpenGLRenderer.h

@@ -24,7 +24,7 @@ public:
    * Note: The `surface` is considered moved, and the OpenGL context will release it when it is
    * being deleted.
    */
-  static std::unique_ptr<OpenGLRenderer> CreateWithWindowSurface(std::shared_ptr<OpenGLContext> context, ANativeWindow* surface, int rotationDegrees);
+  static std::unique_ptr<OpenGLRenderer> CreateWithWindowSurface(std::shared_ptr<OpenGLContext> context, ANativeWindow* surface);
   /**
    * Destroy the OpenGL Context. This needs to be called on the same thread that `use()` was called.
    */
@@ -43,11 +43,10 @@ public:
   void destroy();
 
 private:
-  explicit OpenGLRenderer(std::shared_ptr<OpenGLContext> context, ANativeWindow* surface, int rotationDegrees);
+  explicit OpenGLRenderer(std::shared_ptr<OpenGLContext> context, ANativeWindow* surface);
 
 private:
   int _width = 0, _height = 0;
-  int _rotationDegrees = 0;
   std::shared_ptr<OpenGLContext> _context;
   ANativeWindow* _outputSurface;
   EGLSurface _surface = EGL_NO_SURFACE;

package/android/src/main/cpp/PassThroughShader.cpp

@@ -7,76 +7,11 @@
 #include <EGL/egl.h>
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
-#include <cmath>
 #include <memory>
 #include <string>
 
 namespace vision {
 
-namespace {
-
-void setIdentity(float* matrix) {
-  for (int i = 0; i < 16; i++) {
-    matrix[i] = 0.0f;
-  }
-  matrix[0] = 1.0f;
-  matrix[5] = 1.0f;
-  matrix[10] = 1.0f;
-  matrix[15] = 1.0f;
-}
-
-void multiply4x4(const float* left, const float* right, float* out) {
-  for (int column = 0; column < 4; column++) {
-    for (int row = 0; row < 4; row++) {
-      float sum = 0.0f;
-      for (int k = 0; k < 4; k++) {
-        sum += left[k * 4 + row] * right[column * 4 + k];
-      }
-      out[column * 4 + row] = sum;
-    }
-  }
-}
-
-void makeTranslation(float tx, float ty, float* matrix) {
-  setIdentity(matrix);
-  matrix[12] = tx;
-  matrix[13] = ty;
-}
-
-void makeRotation(float degrees, float* matrix) {
-  setIdentity(matrix);
-  const float radians = degrees * static_cast<float>(M_PI) / 180.0f;
-  const float cosine = std::cos(radians);
-  const float sine = std::sin(radians);
-
-  matrix[0] = cosine;
-  matrix[1] = sine;
-  matrix[4] = -sine;
-  matrix[5] = cosine;
-}
-
-void makeCenteredRotation(int rotationDegrees, float* matrix) {
-  const int normalized = ((rotationDegrees % 360) + 360) % 360;
-  if (normalized == 0) {
-    setIdentity(matrix);
-    return;
-  }
-
-  float translateToOrigin[16];
-  float rotation[16];
-  float translateBack[16];
-  float temp[16];
-
-  makeTranslation(-0.5f, -0.5f, translateToOrigin);
-  makeRotation(static_cast<float>(normalized), rotation);
-  makeTranslation(0.5f, 0.5f, translateBack);
-
-  multiply4x4(rotation, translateToOrigin, temp);
-  multiply4x4(translateBack, temp, matrix);
-}
-
-} // namespace
-
 PassThroughShader::~PassThroughShader() {
   if (_programId != NO_SHADER) {
     glDeleteProgram(_programId);
@@ -89,7 +24,7 @@ PassThroughShader::~PassThroughShader() {
   }
 }
 
-void PassThroughShader::draw(const OpenGLTexture& texture, float* transformMatrix, int rotationDegrees) {
+void PassThroughShader::draw(const OpenGLTexture& texture, float* transformMatrix) {
   // 1. Set up Shader Program
   if (_programId == NO_SHADER) {
     _programId = createProgram();
@@ -122,12 +57,7 @@ void PassThroughShader::draw(const OpenGLTexture& texture, float* transformMatri
   glVertexAttribPointer(_vertexParameters.aTexCoord, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex),
                         reinterpret_cast<void*>(offsetof(Vertex, texCoord)));
 
-  float outputRotationMatrix[16];
-  float combinedTransformMatrix[16];
-  makeCenteredRotation(rotationDegrees, outputRotationMatrix);
-  multiply4x4(transformMatrix, outputRotationMatrix, combinedTransformMatrix);
-
-  glUniformMatrix4fv(_vertexParameters.uTransformMatrix, 1, GL_FALSE, combinedTransformMatrix);
+  glUniformMatrix4fv(_vertexParameters.uTransformMatrix, 1, GL_FALSE, transformMatrix);
 
   // 4. Pass texture to fragment shader
   glActiveTexture(GL_TEXTURE0);

package/android/src/main/cpp/PassThroughShader.h

@@ -29,7 +29,7 @@ public:
    * Draw the texture using this shader.
    * Note: At the moment, only EXTERNAL textures are supported by the Shader.
    */
-  void draw(const OpenGLTexture& texture, float* transformMatrix, int rotationDegrees);
+  void draw(const OpenGLTexture& texture, float* transformMatrix);
 
 private:
   // Loading

package/android/src/main/cpp/VideoPipeline.cpp

@@ -47,13 +47,13 @@ void VideoPipeline::removeRecordingSessionOutputSurface() {
   _recordingSessionOutput = nullptr;
 }
 
-void VideoPipeline::setRecordingSessionOutputSurface(jobject surface, int rotationDegrees) {
+void VideoPipeline::setRecordingSessionOutputSurface(jobject surface) {
   // 1. Delete existing output surface
   removeRecordingSessionOutputSurface();
 
   // 2. Set new output surface if it is not null
   ANativeWindow* window = ANativeWindow_fromSurface(jni::Environment::current(), surface);
-  _recordingSessionOutput = OpenGLRenderer::CreateWithWindowSurface(_context, window, rotationDegrees);
+  _recordingSessionOutput = OpenGLRenderer::CreateWithWindowSurface(_context, window);
 }
 
 int VideoPipeline::getInputTextureId() {
@@ -78,6 +78,7 @@ void VideoPipeline::onFrame(jni::alias_ref<jni::JArrayFloat> transformMatrixPara
   OpenGLTexture& texture = _inputTexture.value();
 
   if (_recordingSessionOutput) {
+    __android_log_print(ANDROID_LOG_INFO, TAG, "Rendering to RecordingSession..");
     _recordingSessionOutput->renderTextureToSurface(texture, transformMatrix);
   }
 }

package/android/src/main/cpp/VideoPipeline.h

@@ -31,7 +31,7 @@ public:
   int getInputTextureId();
 
   // <- MediaRecorder output
-  void setRecordingSessionOutputSurface(jobject surface, int rotationDegrees);
+  void setRecordingSessionOutputSurface(jobject surface);
   void removeRecordingSessionOutputSurface();
 
   // Frame callbacks

package/android/src/main/java/com/mrousavy/camera/core/ChunkedRecorder.kt

@@ -30,15 +30,8 @@ class ChunkedRecordingManager(private val encoder: MediaCodec, private val outpu
       iFrameInterval: Int = 5
     ): ChunkedRecordingManager {
       val mimeType = options.videoCodec.toMimeType()
-      // Use cameraOrientation (from WindowManager) for rotation metadata
-      // The options.orientation from JavaScript is unreliable on Android when rotating between landscape modes
-      // Note: MediaMuxer.setOrientationHint() uses opposite convention from HlsMuxer's rotation matrix
-      // We need to invert the rotation: 90 <-> 270, while 0 and 180 stay the same
-      val orientationDegrees = when (cameraOrientation.toDegrees()) {
-        90 -> 270
-        270 -> 90
-        else -> cameraOrientation.toDegrees()
-      }
+      val cameraOrientationDegrees = cameraOrientation.toDegrees()
+      val recordingOrientationDegrees = (options.orientation ?: Orientation.PORTRAIT).toDegrees();
       val (width, height) = if (cameraOrientation.isLandscape()) {
         size.height to size.width
       } else {
@@ -62,12 +55,12 @@ class ChunkedRecordingManager(private val encoder: MediaCodec, private val outpu
       format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, iFrameInterval)
       format.setInteger(MediaFormat.KEY_BIT_RATE, bitRate)
 
-      Log.d(TAG, "Video Format: $format, orientation: $orientationDegrees")
+      Log.d(TAG, "Video Format: $format, camera orientation $cameraOrientationDegrees, recordingOrientation: $recordingOrientationDegrees")
       // Create a MediaCodec encoder, and configure it with our format.  Get a Surface
       // we can use for input and wrap it with a class that handles the EGL work.
       codec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE)
       return ChunkedRecordingManager(
-        codec, outputDirectory, orientationDegrees, iFrameInterval, callbacks
+        codec, outputDirectory, recordingOrientationDegrees, iFrameInterval, callbacks
       )
     }
   }
@@ -98,13 +91,12 @@ class ChunkedRecordingManager(private val encoder: MediaCodec, private val outpu
       muxer.start()
     }
 
-    fun writeSample(buffer: java.nio.ByteBuffer, bufferInfo: BufferInfo) {
-      muxer.writeSampleData(videoTrack, buffer, bufferInfo)
-    }
 
     fun finish() {
       muxer.stop()
       muxer.release()
+      // Calculate duration from start time - this is approximate
+      // The new FragmentedRecordingManager provides accurate duration
       callbacks.onVideoChunkReady(filepath, chunkIndex, null)
     }
   }
@@ -178,7 +170,7 @@ class ChunkedRecordingManager(private val encoder: MediaCodec, private val outpu
         encoder.releaseOutputBuffer(index, false)
         return
       }
-      context.writeSample(encodedData, bufferInfo)
+      context.muxer.writeSampleData(context.videoTrack, encodedData, bufferInfo)
       encoder.releaseOutputBuffer(index, false)
     }
   }

package/android/src/main/java/com/mrousavy/camera/core/FragmentedRecordingManager.kt

@@ -39,11 +39,18 @@ class FragmentedRecordingManager(
             segmentDurationSeconds: Int = DEFAULT_SEGMENT_DURATION_SECONDS
         ): FragmentedRecordingManager {
             val mimeType = options.videoCodec.toMimeType()
-            val cameraOrientationDegrees = cameraOrientation.toDegrees()
-            val orientationDegrees = 0
-            val (width, height) = size.width to size.height
+            // Use cameraOrientation (from WindowManager) for rotation metadata
+            // The options.orientation from JavaScript is unreliable on Android when rotating between landscape modes
+            val orientationDegrees = cameraOrientation.toDegrees()
 
-            Log.d(TAG, "Recording: ${width}x${height}, orientation=$orientationDegrees° (cameraOrientation=$cameraOrientationDegrees°)")
+            // Swap dimensions based on camera orientation, same as ChunkedRecordingManager
+            val (width, height) = if (cameraOrientation.isLandscape()) {
+                size.height to size.width
+            } else {
+                size.width to size.height
+            }
+
+            Log.d(TAG, "Recording: ${width}x${height}, orientation=$orientationDegrees°")
 
             val format = MediaFormat.createVideoFormat(mimeType, width, height)
             val codec = MediaCodec.createEncoderByType(mimeType)

package/android/src/main/java/com/mrousavy/camera/core/HlsMuxer.kt

@@ -753,32 +753,17 @@ class HlsMuxer(
         dos.writeShort(-1)              // pre-defined
 
         output.write(buildAvcCBox(sps, pps))
-        output.write(buildPaspBox())
 
         return wrapBox("avc1", output.toByteArray())
     }
 
-    /**
-     * Builds pixel aspect ratio box to explicitly declare square pixels (1:1).
-     * This helps players correctly interpret video dimensions without SAR scaling.
-     */
-    private fun buildPaspBox(): ByteArray {
-        val output = ByteArrayOutputStream()
-        val dos = DataOutputStream(output)
-        dos.writeInt(1)  // hSpacing (horizontal)
-        dos.writeInt(1)  // vSpacing (vertical)
-        return wrapBox("pasp", output.toByteArray())
-    }
-
     private fun buildAvcCBox(sps: ByteArray, pps: ByteArray): ByteArray {
         val output = ByteArrayOutputStream()
         val dos = DataOutputStream(output)
 
-        // SPS NAL unit format: [NAL header, profile_idc, constraint_flags, level_idc, ...]
-        // Skip byte 0 (NAL header, typically 0x67) to get the actual profile data
-        val profileIdc = if (sps.size > 1) sps[1].toInt() and 0xFF else 0x42
-        val profileCompat = if (sps.size > 2) sps[2].toInt() and 0xFF else 0x00
-        val levelIdc = if (sps.size > 3) sps[3].toInt() and 0xFF else 0x1F
+        val profileIdc = if (sps.isNotEmpty()) sps[0].toInt() and 0xFF else 0x42
+        val profileCompat = if (sps.size > 1) sps[1].toInt() and 0xFF else 0x00
+        val levelIdc = if (sps.size > 2) sps[2].toInt() and 0xFF else 0x1F
 
         dos.writeByte(1)            // configuration version
         dos.writeByte(profileIdc)   // AVC profile

package/android/src/main/java/com/mrousavy/camera/core/PersistentCameraCaptureSession.kt

@@ -235,19 +235,10 @@ class PersistentCameraCaptureSession(private val cameraManager: CameraManager, p
 
       // 1. Run a precapture sequence for AF, AE and AWB.
       focusJob = coroutineScope.launch {
-        try {
-          val request = repeatingRequest.createCaptureRequest(device, deviceDetails, outputs)
-          val options =
-            PrecaptureOptions(listOf(PrecaptureTrigger.AF, PrecaptureTrigger.AE), Flash.OFF, listOf(point), false, FOCUS_RESET_TIMEOUT)
-          session.precapture(request, deviceDetails, options)
-        } catch (e: CaptureTimedOutError) {
-          // Focus timed out - this is non-fatal, just log and continue
-          Log.w(TAG, "Focus timed out at point $point, continuing without focus lock")
-        } catch (e: IllegalStateException) {
-          Log.w(TAG, "Focus failed, camera device was already closed: ${e.message}")
-        } catch (e: CameraAccessException) {
-          Log.w(TAG, "Focus failed, camera not accessible: ${e.message}")
-        }
+        val request = repeatingRequest.createCaptureRequest(device, deviceDetails, outputs)
+        val options =
+          PrecaptureOptions(listOf(PrecaptureTrigger.AF, PrecaptureTrigger.AE), Flash.OFF, listOf(point), false, FOCUS_RESET_TIMEOUT)
+        session.precapture(request, deviceDetails, options)
       }
       focusJob?.join()
 
@@ -263,14 +254,8 @@ class PersistentCameraCaptureSession(private val cameraManager: CameraManager, p
           return@launch
         }
         Log.i(TAG, "Resetting focus to auto-focus...")
-        try {
-          repeatingRequest.createCaptureRequest(device, deviceDetails, outputs).also { request ->
-            session.setRepeatingRequest(request.build(), null, null)
-          }
-        } catch (e: IllegalStateException) {
-          Log.w(TAG, "Failed to reset focus, camera device was already closed: ${e.message}")
-        } catch (e: CameraAccessException) {
-          Log.w(TAG, "Failed to reset focus, camera not accessible: ${e.message}")
+        repeatingRequest.createCaptureRequest(device, deviceDetails, outputs).also { request ->
+          session.setRepeatingRequest(request.build(), null, null)
         }
       }
     }

package/android/src/main/java/com/mrousavy/camera/core/PreviewView.kt

@@ -5,7 +5,7 @@ import android.content.Context
 import android.content.res.Configuration
 import android.graphics.Point
 import android.os.Handler
-import android.os.HandlerThread
+import android.os.Looper
 import android.util.Log
 import android.util.Size
 import android.view.PixelCopy
@@ -25,72 +25,58 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlinx.coroutines.withContext
 import android.graphics.Bitmap
+import android.graphics.Matrix
+
+fun rotateBitmap90CounterClockwise(source: Bitmap): Bitmap {
+    val width = source.width
+    val height = source.height
+
+    // Create a new Bitmap with swapped width and height
+    val rotatedBitmap = Bitmap.createBitmap(height, width, source.config ?: Bitmap.Config.ARGB_8888)
+
+    for (y in 0 until height) {
+        for (x in 0 until width) {
+            // Set the pixel in the new position
+            rotatedBitmap.setPixel(y, width - 1 - x, source.getPixel(x, y))
+        }
+    }
+
+    return rotatedBitmap
+}
+
 
 fun Bitmap.transformBitmap(orientation: Orientation): Bitmap {
     return when (orientation) {
         Orientation.PORTRAIT -> this // No transformation needed
         Orientation.LANDSCAPE_LEFT -> {
-            val srcWidth = width
-            val srcHeight = height
-            val sourcePixels = IntArray(srcWidth * srcHeight)
-            getPixels(sourcePixels, 0, srcWidth, 0, 0, srcWidth, srcHeight)
-
-            val dstWidth = srcHeight
-            val dstHeight = srcWidth
-            val destinationPixels = IntArray(dstWidth * dstHeight)
-            for (y in 0 until srcHeight) {
-                for (x in 0 until srcWidth) {
-                    val dstX = y
-                    val dstY = srcWidth - 1 - x
-                    destinationPixels[dstY * dstWidth + dstX] = sourcePixels[y * srcWidth + x]
+            // Transpose (swap width and height)
+            val transposedBitmap = Bitmap.createBitmap(height, width, config ?: Bitmap.Config.ARGB_8888)
+            for (y in 0 until height) {
+                for (x in 0 until width) {
+                    transposedBitmap.setPixel(y, width - 1 - x, getPixel(x, y))
                 }
             }
-
-            val transformedBitmap = Bitmap.createBitmap(dstWidth, dstHeight, config ?: Bitmap.Config.ARGB_8888)
-            transformedBitmap.setPixels(destinationPixels, 0, dstWidth, 0, 0, dstWidth, dstHeight)
-            transformedBitmap
+            transposedBitmap
         }
         Orientation.PORTRAIT_UPSIDE_DOWN -> {
-            val srcWidth = width
-            val srcHeight = height
-            val sourcePixels = IntArray(srcWidth * srcHeight)
-            getPixels(sourcePixels, 0, srcWidth, 0, 0, srcWidth, srcHeight)
-
-            val dstWidth = srcWidth
-            val dstHeight = srcHeight
-            val destinationPixels = IntArray(dstWidth * dstHeight)
-            for (y in 0 until srcHeight) {
-                for (x in 0 until srcWidth) {
-                    val dstX = srcWidth - 1 - x
-                    val dstY = srcHeight - 1 - y
-                    destinationPixels[dstY * dstWidth + dstX] = sourcePixels[y * srcWidth + x]
+            // Invert vertically and horizontally (180-degree rotation)
+            val invertedBitmap = Bitmap.createBitmap(width, height, config ?: Bitmap.Config.ARGB_8888)
+            for (y in 0 until height) {
+                for (x in 0 until width) {
+                    invertedBitmap.setPixel(width - 1 - x, height - 1 - y, getPixel(x, y))
                 }
             }
-
-            val transformedBitmap = Bitmap.createBitmap(dstWidth, dstHeight, config ?: Bitmap.Config.ARGB_8888)
-            transformedBitmap.setPixels(destinationPixels, 0, dstWidth, 0, 0, dstWidth, dstHeight)
-            transformedBitmap
+            invertedBitmap
         }
         Orientation.LANDSCAPE_RIGHT -> {
-            val srcWidth = width
-            val srcHeight = height
-            val sourcePixels = IntArray(srcWidth * srcHeight)
-            getPixels(sourcePixels, 0, srcWidth, 0, 0, srcWidth, srcHeight)
-
-            val dstWidth = srcHeight
-            val dstHeight = srcWidth
-            val destinationPixels = IntArray(dstWidth * dstHeight)
-            for (y in 0 until srcHeight) {
-                for (x in 0 until srcWidth) {
-                    val dstX = srcHeight - 1 - y
-                    val dstY = x
-                    destinationPixels[dstY * dstWidth + dstX] = sourcePixels[y * srcWidth + x]
+            // Transpose (swap width and height) and invert vertically
+            val transposedBitmap = Bitmap.createBitmap(height, width, config ?: Bitmap.Config.ARGB_8888)
+            for (y in 0 until height) {
+                for (x in 0 until width) {
+                    transposedBitmap.setPixel(height - 1 - y, x, getPixel(x, y))
                 }
             }
-
-            val transformedBitmap = Bitmap.createBitmap(dstWidth, dstHeight, config ?: Bitmap.Config.ARGB_8888)
-            transformedBitmap.setPixels(destinationPixels, 0, dstWidth, 0, 0, dstWidth, dstHeight)
-            transformedBitmap
+            transposedBitmap
         }
     }
 }
@@ -200,7 +186,7 @@ class PreviewView(context: Context, callback: SurfaceHolder.Callback) :
             )
           }
         },
-        pixelCopyHandler
+        Handler(Looper.getMainLooper())
     )
     }
   }
@@ -212,10 +198,8 @@ class PreviewView(context: Context, callback: SurfaceHolder.Callback) :
     val viewOrientation = Orientation.PORTRAIT
 
     val rotated = point.rotatedBy(viewSize, cameraSize, viewOrientation, sensorOrientation)
-    // Clamp to valid camera coordinates (must be non-negative for MeteringRectangle)
-    val clamped = Point(maxOf(0, rotated.x), maxOf(0, rotated.y))
-    Log.i(TAG, "Converted layer point $point to camera point $clamped! ($sensorOrientation, $cameraSize -> $viewSize)")
-    return clamped
+    Log.i(TAG, "Converted layer point $point to camera point $rotated! ($sensorOrientation, $cameraSize -> $viewSize)")
+    return rotated
   }
 
   private fun updateLayout() {
@@ -270,10 +254,5 @@ class PreviewView(context: Context, callback: SurfaceHolder.Callback) :
 
   companion object {
     private const val TAG = "PreviewView"
-    private val pixelCopyHandler: Handler by lazy {
-      val handlerThread = HandlerThread("VisionCamera.PixelCopy")
-      handlerThread.start()
-      Handler(handlerThread.looper)
-    }
   }
 }

package/android/src/main/java/com/mrousavy/camera/core/RecordingSession.kt

@@ -8,7 +8,6 @@ import com.facebook.common.statfs.StatFsHelper
 import com.mrousavy.camera.extensions.getRecommendedBitRate
 import com.mrousavy.camera.types.Orientation
 import com.mrousavy.camera.types.RecordVideoOptions
-import com.mrousavy.camera.types.StreamSegmentType
 import com.mrousavy.camera.utils.FileUtils
 import java.io.File
 import android.os.Environment
@@ -28,7 +27,9 @@ class RecordingSession(
   private val filePath: String,
   private val callback: (video: Video) -> Unit,
   private val onError: (error: CameraError) -> Unit,
-  private val allCallbacks: CameraSession.Callback
+  private val allCallbacks: CameraSession.Callback,
+  // Use FragmentedRecordingManager for HLS-compatible fMP4 output
+  private val useFragmentedMp4: Boolean = true
 ) {
   companion object {
     private const val TAG = "RecordingSession"
@@ -43,26 +44,20 @@ class RecordingSession(
 
   data class Video(val path: String, val durationMs: Long, val size: Size)
 
-  val outputRotationDegrees: Int =
-    if (options.streamSegmentType == StreamSegmentType.FRAGMENTED_MP4) {
-      when (cameraOrientation.toDegrees()) {
-        90 -> 270
-        270 -> 90
-        else -> cameraOrientation.toDegrees()
-      }
+  // Strip file:// prefix if present (expo-file-system returns URIs with this prefix)
+  private val outputPath: File = File(
+    if (filePath.startsWith("file://")) {
+      filePath.removePrefix("file://")
     } else {
-      0
+      filePath
     }
-
-  // Normalize path - expo-file-system passes file:// URIs but File expects raw paths
-  // Handle both file:// and file:/ variants
-  private val outputPath: File = File(filePath.replace(Regex("^file:/+"), "/"))
+  )
 
   private val bitRate = getBitRate()
 
   // Use FragmentedRecordingManager for HLS-compatible fMP4 output,
   // or fall back to ChunkedRecordingManager for regular MP4 chunks
-  private val recorder: ChunkedRecorderInterface = if (options.streamSegmentType == StreamSegmentType.FRAGMENTED_MP4) {
+  private val recorder: ChunkedRecorderInterface = if (useFragmentedMp4) {
     FragmentedRecordingManager.fromParams(
       allCallbacks,
       size,
@@ -94,7 +89,7 @@ class RecordingSession(
 
   fun start() {
     synchronized(this) {
-      Log.i(TAG, "Starting RecordingSession with ${options.streamSegmentType} recorder..")
+      Log.i(TAG, "Starting RecordingSession..")
       startTime = System.currentTimeMillis()
       recorder.start()
     }

package/android/src/main/java/com/mrousavy/camera/core/VideoPipeline.kt

@@ -186,7 +186,7 @@ class VideoPipeline(
       if (recordingSession != null) {
         // Configure OpenGL pipeline to stream Frames into the Recording Session's surface
         Log.i(TAG, "Setting ${recordingSession.size} RecordingSession Output...")
-        setRecordingSessionOutputSurface(recordingSession.surface, recordingSession.outputRotationDegrees)
+        setRecordingSessionOutputSurface(recordingSession.surface)
         this.recordingSession = recordingSession
       } else {
         // Configure OpenGL pipeline to stop streaming Frames into the Recording Session's surface
@@ -250,7 +250,7 @@ class VideoPipeline(
   private external fun getInputTextureId(): Int
   private external fun onBeforeFrame()
   private external fun onFrame(transformMatrix: FloatArray)
-  private external fun setRecordingSessionOutputSurface(surface: Any, rotationDegrees: Int)
+  private external fun setRecordingSessionOutputSurface(surface: Any)
   private external fun removeRecordingSessionOutputSurface()
   private external fun initHybrid(width: Int, height: Int): HybridData
 }

package/android/src/main/java/com/mrousavy/camera/types/RecordVideoOptions.kt

@@ -9,7 +9,6 @@ class RecordVideoOptions(map: ReadableMap) {
   var videoBitRateOverride: Double? = null
   var videoBitRateMultiplier: Double? = null
   var orientation: Orientation? = null
-  var streamSegmentType: StreamSegmentType = StreamSegmentType.FRAGMENTED_MP4
 
   init {
     if (map.hasKey("fileType")) {
@@ -30,8 +29,5 @@ class RecordVideoOptions(map: ReadableMap) {
     if (map.hasKey("orientation")) {
       orientation = Orientation.fromUnionValue(map.getString("orientation"))
     }
-    if (map.hasKey("streamSegmentType")) {
-      streamSegmentType = StreamSegmentType.fromUnionValue(map.getString("streamSegmentType"))
-    }
   }
 }

package/android/src/main/java/com/mrousavy/camera/types/StreamSegmentType.kt

@@ -1,15 +0,0 @@
-package com.mrousavy.camera.types
-
-enum class StreamSegmentType(override val unionValue: String) : JSUnionValue {
-  FRAGMENTED_MP4("FRAGMENTED_MP4"),
-  RB_CHUNKED_MP4("RB_CHUNKED_MP4");
-
-  companion object : JSUnionValue.Companion<StreamSegmentType> {
-    override fun fromUnionValue(unionValue: String?): StreamSegmentType =
-      when (unionValue) {
-        "FRAGMENTED_MP4" -> FRAGMENTED_MP4
-        "RB_CHUNKED_MP4" -> RB_CHUNKED_MP4
-        else -> FRAGMENTED_MP4 // Default to fMP4
-      }
-  }
-}

package/ios/Core/CameraSession+Video.swift

@@ -20,9 +20,6 @@ extension CameraSession {
                       onError: @escaping (_ error: CameraError) -> Void) {
     // Run on Camera Queue
     CameraQueues.cameraQueue.async {
-      // Normalize path - expo-file-system passes file:// URIs but FileManager expects raw paths
-      let normalizedPath = filePath.hasPrefix("file://") ? String(filePath.dropFirst(7)) : filePath
-
       let start = DispatchTime.now()
       ReactLogger.log(level: .info, message: "Starting Video recording...")
 
@@ -41,27 +38,11 @@ extension CameraSession {
       // Callback for when new chunks are ready
       let onChunkReady: (ChunkedRecorder.Chunk) -> Void = { chunk in
         guard let delegate = self.delegate else {
-          ReactLogger.log(level: .warning, message: "Chunk ready but delegate is nil, dropping chunk: \(chunk)")
           return
         }
         delegate.onVideoChunkReady(chunk: chunk)
       }
 
-      // Callback for when a chunk write fails (e.g. init file write failure)
-      let onChunkError: (Error) -> Void = { error in
-        ReactLogger.log(level: .error, message: "Chunk write error, stopping recording: \(error.localizedDescription)")
-        // Stop recording immediately
-        if let session = self.recordingSession {
-          session.stop(clock: self.captureSession.clock)
-        }
-        // Surface error to RN
-        if let cameraError = error as? CameraError {
-          onError(cameraError)
-        } else {
-          onError(.capture(.fileError))
-        }
-      }
-
       // Callback for when the recording ends
       let onFinish = { (recordingSession: RecordingSession, status: AVAssetWriter.Status, error: Error?) in
         defer {
@@ -101,23 +82,22 @@ extension CameraSession {
         }
       }
 
-      if !FileManager.default.fileExists(atPath: normalizedPath) {
+      if !FileManager.default.fileExists(atPath: filePath) {
         do {
-          try FileManager.default.createDirectory(atPath: normalizedPath, withIntermediateDirectories: true)
+          try FileManager.default.createDirectory(atPath: filePath, withIntermediateDirectories: true)
         } catch {
           onError(.capture(.createRecordingDirectoryError(message: error.localizedDescription)))
           return
         }
       }
 
-      ReactLogger.log(level: .info, message: "Will record to temporary file: \(normalizedPath)")
+      ReactLogger.log(level: .info, message: "Will record to temporary file: \(filePath)")
 
       do {
         // Create RecordingSession for the temp file
-        let recordingSession = try RecordingSession(outputDiretory: normalizedPath,
+        let recordingSession = try RecordingSession(outputDiretory: filePath,
                                                     fileType: options.fileType,
                                                     onChunkReady: onChunkReady,
-                                                    onChunkError: onChunkError,
                                                     completion: onFinish)
 
         // Init Audio + Activate Audio Session (optional)

package/ios/Core/ChunkedRecorder.swift

@@ -24,14 +24,12 @@ class ChunkedRecorder: NSObject {
 
   let outputURL: URL
   let onChunkReady: ((Chunk) -> Void)
-  let onError: ((Error) -> Void)?
 
   private var chunkIndex: UInt64 = 0
 
-  init(outputURL: URL, onChunkReady: @escaping ((Chunk) -> Void), onError: ((Error) -> Void)? = nil) throws {
+  init(outputURL: URL, onChunkReady: @escaping ((Chunk) -> Void)) throws {
     self.outputURL = outputURL
     self.onChunkReady = onChunkReady
-    self.onError = onError
     guard FileManager.default.fileExists(atPath: outputURL.path) else {
       throw CameraError.unknown(message: "output directory does not exist at: \(outputURL.path)", cause: nil)
     }
@@ -58,36 +56,28 @@ extension ChunkedRecorder: AVAssetWriterDelegate {
 
   private func saveInitSegment(_ data: Data) {
     let url = outputURL.appendingPathComponent("init.mp4")
-    do {
-      try data.write(to: url)
-      onChunkReady(url: url, type: .initialization)
-    } catch {
-      ReactLogger.log(level: .error, message: "Failed to write init file \(url): \(error.localizedDescription)")
-      onError?(CameraError.capture(.fileError))
-    }
+    save(data: data, url: url)
+    onChunkReady(url: url, type: .initialization)
   }
 
   private func saveSegment(_ data: Data, report: AVAssetSegmentReport?) {
     let name = "\(chunkIndex).mp4"
     let url = outputURL.appendingPathComponent(name)
-    if save(data: data, url: url) {
-      let duration = report?
-        .trackReports
-        .filter { $0.mediaType == .video }
-        .first?
-        .duration
-      onChunkReady(url: url, type: .data(index: chunkIndex, duration: duration))
-      chunkIndex += 1
-    }
+    save(data: data, url: url)
+    let duration = report?
+      .trackReports
+      .filter { $0.mediaType == .video }
+      .first?
+      .duration
+    onChunkReady(url: url, type: .data(index: chunkIndex, duration: duration))
+    chunkIndex += 1
   }
 
-  private func save(data: Data, url: URL) -> Bool {
+  private func save(data: Data, url: URL) {
     do {
       try data.write(to: url)
-      return true
     } catch {
       ReactLogger.log(level: .error, message: "Unable to write \(url): \(error.localizedDescription)")
-      return false
     }
   }
 

package/ios/Core/RecordingSession.swift

@@ -74,13 +74,12 @@ class RecordingSession {
   init(outputDiretory: String,
        fileType: AVFileType,
        onChunkReady: @escaping ((ChunkedRecorder.Chunk) -> Void),
-       onChunkError: ((Error) -> Void)? = nil,
        completion: @escaping (RecordingSession, AVAssetWriter.Status, Error?) -> Void) throws {
     completionHandler = completion
 
     do {
       let outputURL = URL(fileURLWithPath: outputDiretory)
-      recorder = try ChunkedRecorder(outputURL: outputURL, onChunkReady: onChunkReady, onError: onChunkError)
+      recorder = try ChunkedRecorder(outputURL: outputURL, onChunkReady: onChunkReady)
       assetWriter = AVAssetWriter(contentType: UTType(fileType.rawValue)!)
       assetWriter.shouldOptimizeForNetworkUse = false
       assetWriter.outputFileTypeProfile = .mpeg4AppleHLS

package/src/VideoFile.ts

@@ -41,17 +41,6 @@ export interface RecordVideoOptions {
    * @default 'normal'
    */
   videoBitRate?: 'extra-low' | 'low' | 'normal' | 'high' | 'extra-high' | number
-  /**
-   * The stream segment type for recording on Android.
-   * - `FRAGMENTED_MP4`: HLS-compatible segments (init.mp4 + numbered segments)
-   * - `RB_CHUNKED_MP4`: Legacy chunked MP4 format
-   *
-   * iOS always uses FRAGMENTED_MP4 regardless of this setting.
-   *
-   * @platform android
-   * @default 'FRAGMENTED_MP4'
-   */
-  streamSegmentType?: 'FRAGMENTED_MP4' | 'RB_CHUNKED_MP4'
 }
 
 /**