Update max video duration for MMS.

src/org/thoughtcrime/securesms/mediasend/CameraXFragment.java

@@ -47,6 +47,7 @@ import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.ThemeUtil;
 import org.thoughtcrime.securesms.util.Util;
 import org.thoughtcrime.securesms.util.concurrent.SimpleTask;
+import org.thoughtcrime.securesms.video.VideoUtil;
 import org.whispersystems.libsignal.util.guava.Optional;
 
 import java.io.FileDescriptor;
@@ -237,11 +238,15 @@ public class CameraXFragment extends Fragment implements CameraFragment {
 
         camera.setCaptureMode(CameraXView.CaptureMode.MIXED);
 
+        int maxDuration = VideoUtil.getMaxVideoDurationInSeconds(requireContext(), viewModel.getMediaConstraints());
+        Log.d(TAG, "Max duration: " + maxDuration + " sec");
+
         captureButton.setVideoCaptureListener(new CameraXVideoCaptureHelper(
             this,
             captureButton,
             camera,
             videoFileDescriptor,
+            maxDuration,
             new CameraXVideoCaptureHelper.Callback() {
               @Override
               public void onVideoRecordStarted() {
@@ -266,14 +271,20 @@ public class CameraXFragment extends Fragment implements CameraFragment {
         Log.w(TAG, "Video capture is not supported on this device.", e);
       }
     } else {
-      Log.i(TAG, "Video capture not supported. API: " + Build.VERSION.SDK_INT + ", MFD: " + MemoryFileDescriptor.supported() + ", Camera: " + CameraXUtil.getLowestSupportedHardwareLevel(requireContext()));
+      Log.i(TAG, "Video capture not supported. " +
+                 "API: " + Build.VERSION.SDK_INT + ", " +
+                 "MFD: " + MemoryFileDescriptor.supported() + ", " +
+                 "Camera: " + CameraXUtil.getLowestSupportedHardwareLevel(requireContext()) + ", " +
+                 "MaxDuration: " + VideoUtil.getMaxVideoDurationInSeconds(requireContext(), viewModel.getMediaConstraints()) + " sec");
     }
 
     viewModel.onCameraControlsInitialized();
   }
 
   private boolean isVideoRecordingSupported(@NonNull Context context) {
-    return MediaConstraints.isVideoTranscodeAvailable() && CameraXUtil.isMixedModeSupported(context);
+    return MediaConstraints.isVideoTranscodeAvailable() &&
+           CameraXUtil.isMixedModeSupported(context)    &&
+           VideoUtil.getMaxVideoDurationInSeconds(context, viewModel.getMediaConstraints()) > 0;
   }
 
   private void displayVideoRecordingTooltipIfNecessary(CameraButtonView captureButton) {

src/org/thoughtcrime/securesms/mediasend/CameraXVideoCaptureHelper.java

@@ -40,11 +40,10 @@ class CameraXVideoCaptureHelper implements CameraButtonView.VideoCaptureListener
   private final @NonNull CameraXView          camera;
   private final @NonNull Callback             callback;
   private final @NonNull MemoryFileDescriptor memoryFileDescriptor;
+  private final @NonNull ValueAnimator        updateProgressAnimator;
 
   private       boolean       isRecording;
   private       ValueAnimator cameraMetricsAnimator;
-  private final ValueAnimator updateProgressAnimator = ValueAnimator.ofFloat(0f, 1f)
-      .setDuration(VideoUtil.VIDEO_MAX_LENGTH_S * 1000);
 
   private final VideoCapture.OnVideoSavedListener videoSavedListener = new VideoCapture.OnVideoSavedListener() {
     @Override
@@ -74,12 +73,14 @@ class CameraXVideoCaptureHelper implements CameraButtonView.VideoCaptureListener
                             @NonNull CameraButtonView captureButton,
                             @NonNull CameraXView camera,
                             @NonNull MemoryFileDescriptor memoryFileDescriptor,
+                            int      maxVideoDurationSec,
                             @NonNull Callback callback)
   {
     this.fragment               = fragment;
     this.camera                 = camera;
     this.memoryFileDescriptor   = memoryFileDescriptor;
     this.callback               = callback;
+    this.updateProgressAnimator = ValueAnimator.ofFloat(0f, 1f).setDuration(maxVideoDurationSec * 1000);
 
     updateProgressAnimator.setInterpolator(new LinearInterpolator());
     updateProgressAnimator.addUpdateListener(anim -> captureButton.setProgress(anim.getAnimatedFraction()));

src/org/thoughtcrime/securesms/mediasend/MediaSendViewModel.java

@@ -455,6 +455,10 @@ class MediaSendViewModel extends ViewModel {
     return FeatureFlags.VIEW_ONCE_SENDING && viewOnceState == ViewOnceState.ENABLED;
   }
 
+  @NonNull MediaConstraints getMediaConstraints() {
+    return mediaConstraints;
+  }
+
   private @NonNull List<Media> getSelectedMediaOrDefault() {
     return selectedMedia.getValue() == null ? Collections.emptyList()
                                             : selectedMedia.getValue();

src/org/thoughtcrime/securesms/video/VideoUtil.java

@@ -1,12 +1,15 @@
 package org.thoughtcrime.securesms.video;
 
+import android.content.Context;
 import android.content.res.Resources;
 import android.media.MediaFormat;
 import android.util.DisplayMetrics;
 import android.util.Size;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.RequiresApi;
 
+import org.thoughtcrime.securesms.mms.MediaConstraints;
 import org.thoughtcrime.securesms.util.MediaUtil;
 
 public final class VideoUtil {
@@ -18,6 +21,8 @@ public final class VideoUtil {
   public static final int VIDEO_SHORT_WIDTH  = 720;
   public static final int VIDEO_MAX_LENGTH_S = 30;
 
+  private static final int TOTAL_BYTES_PER_SECOND = (VIDEO_BIT_RATE / 8) + (AUDIO_BIT_RATE / 8);
+
   @RequiresApi(21)
   public static final String VIDEO_MIME_TYPE = MediaFormat.MIMETYPE_VIDEO_AVC;
   public static final String AUDIO_MIME_TYPE = "audio/mp4a-latm";
@@ -33,6 +38,13 @@ public final class VideoUtil {
            : new Size(VIDEO_LONG_WIDTH, VIDEO_SHORT_WIDTH);
   }
 
+  public static int getMaxVideoDurationInSeconds(@NonNull Context context, @NonNull MediaConstraints mediaConstraints) {
+    int allowedSize = mediaConstraints.getCompressedVideoMaxSize(context);
+    int duration    = (int) Math.floor((float) allowedSize / TOTAL_BYTES_PER_SECOND);
+
+    return Math.min(duration, VIDEO_MAX_LENGTH_S);
+  }
+
   @RequiresApi(21)
   private static Size screenSize() {
     DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics();