new file mode 100644
--- /dev/null
+++ b/media/libcubeb/disable-assert.patch
@@ -0,0 +1,22 @@
+diff --git a/media/libcubeb/src/cubeb_resampler_internal.h b/media/libcubeb/src/cubeb_resampler_internal.h
+--- a/media/libcubeb/src/cubeb_resampler_internal.h
++++ b/media/libcubeb/src/cubeb_resampler_internal.h
+@@ -249,17 +249,17 @@ public:
+     }
+ 
+     uint32_t in_len = samples_to_frames(resampling_in_buffer.length());
+     uint32_t out_len = output_frame_count;
+ 
+     speex_resample(resampling_in_buffer.data(), &in_len,
+                    resampling_out_buffer.data(), &out_len);
+ 
+-    assert(out_len == output_frame_count);
++    // assert(out_len == output_frame_count);
+ 
+     /* This shifts back any unresampled samples to the beginning of the input
+        buffer. */
+     resampling_in_buffer.pop(nullptr, frames_to_samples(in_len));
+     *input_frames_used = in_len;
+ 
+     return resampling_out_buffer.data();
+   }

--- a/media/libcubeb/src/cubeb_resampler_internal.h
+++ b/media/libcubeb/src/cubeb_resampler_internal.h
@@ -249,17 +249,17 @@ public:
     }
 
     uint32_t in_len = samples_to_frames(resampling_in_buffer.length());
     uint32_t out_len = output_frame_count;
 
     speex_resample(resampling_in_buffer.data(), &in_len,
                    resampling_out_buffer.data(), &out_len);
 
-    assert(out_len == output_frame_count);
+    // assert(out_len == output_frame_count);
 
     /* This shifts back any unresampled samples to the beginning of the input
        buffer. */
     resampling_in_buffer.pop(nullptr, frames_to_samples(in_len));
     *input_frames_used = in_len;
 
     return resampling_out_buffer.data();
   }

--- a/media/libcubeb/update.sh
+++ b/media/libcubeb/update.sh
@@ -79,8 +79,10 @@ if [ -n "$rev" ]; then
     exit 1
   fi
   rm moz.yaml.bak
   [[ -n "$commits" ]] && echo -e "Pick commits:\n$commits"
 else
   echo "Remember to update moz.yaml with the version details."
 fi
 
+echo "Applying a patch on top of $rev"
+patch -p3 < ./disable-assert.patch