diff --git a/tools/replay/framereader.cc b/tools/replay/framereader.cc
index bfa85a0625..ecde9ad5d2 100644
--- a/tools/replay/framereader.cc
+++ b/tools/replay/framereader.cc
@@ -117,8 +117,6 @@ bool FrameReader::load(const std::byte *data, size_t size, bool no_hw_decoder, s
   if (has_hw_decoder && !no_hw_decoder) {
     if (!initHardwareDecoder(HW_DEVICE_TYPE)) {
       rWarning("No device with hardware decoder found. fallback to CPU decoding.");
-    } else {
-      nv12toyuv_buffer.resize(getYUVSize());
     }
   }
 
@@ -227,17 +225,16 @@ AVFrame *FrameReader::decodeFrame(AVPacket *pkt) {
 }
 
 bool FrameReader::copyBuffers(AVFrame *f, uint8_t *yuv) {
+  assert(f != nullptr && yuv != nullptr);
+  uint8_t *y = yuv;
+  uint8_t *uv = y + width * height;
   if (hw_pix_fmt == HW_PIX_FMT) {
-    uint8_t *y = yuv ? yuv : nv12toyuv_buffer.data();
-    uint8_t *uv = y + width * height;
     for (int i = 0; i < height/2; i++) {
       memcpy(y + (i*2 + 0)*width, f->data[0] + (i*2 + 0)*f->linesize[0], width);
       memcpy(y + (i*2 + 1)*width, f->data[0] + (i*2 + 1)*f->linesize[0], width);
       memcpy(uv + i*width, f->data[1] + i*f->linesize[1], width);
     }
   } else {
-    uint8_t *y = yuv ? yuv : nv12toyuv_buffer.data();
-    uint8_t *uv = y + width * height;
     libyuv::I420ToNV12(f->data[0], f->linesize[0],
                        f->data[1], f->linesize[1],
                        f->data[2], f->linesize[2],
diff --git a/tools/replay/framereader.h b/tools/replay/framereader.h
index 10bf34a24e..e50b61d7f4 100644
--- a/tools/replay/framereader.h
+++ b/tools/replay/framereader.h
@@ -46,7 +46,6 @@ private:
 
   AVPixelFormat hw_pix_fmt = AV_PIX_FMT_NONE;
   AVBufferRef *hw_device_ctx = nullptr;
-  std::vector<uint8_t> nv12toyuv_buffer;
   int prev_idx = -1;
   inline static std::atomic<bool> has_hw_decoder = true;
 };