use vectors for sample buffers rather than raw ptr arrays

app/node/block/transition/crossdissolve/crossdissolvetransition.cpp

@@ -73,11 +73,11 @@ void CrossDissolveTransition::SampleJobEvent(SampleBufferPtr from_samples, Sampl
     double progress = GetTotalProgress(this_sample_time);
 
     for (int j=0; j<out_samples->audio_params().channel_count(); j++) {
-      out_samples->data()[j][i] = 0;
+      out_samples->data(j)[i] = 0;
 
       if (from_samples) {
         if (i < from_samples->sample_count()) {
-          out_samples->data()[j][i] += from_samples->data()[j][i] * TransformCurve(1.0 - progress);
+          out_samples->data(j)[i] += from_samples->data(j)[i] * TransformCurve(1.0 - progress);
         }
       }
 
@@ -86,7 +86,7 @@ void CrossDissolveTransition::SampleJobEvent(SampleBufferPtr from_samples, Sampl
         int in_index = i - (out_samples->sample_count() - to_samples->sample_count());
 
         if (in_index >= 0) {
-          out_samples->data()[j][i] += to_samples->data()[j][in_index] * TransformCurve(progress);
+          out_samples->data(j)[i] += to_samples->data(j)[in_index] * TransformCurve(progress);
         }
       }
     }