diff --git a/plugins/input_rtsp/input_rtsp_node.cpp b/plugins/input_rtsp/input_rtsp_node.cpp
index 1c69988..b758e68 100644
--- a/plugins/input_rtsp/input_rtsp_node.cpp
+++ b/plugins/input_rtsp/input_rtsp_node.cpp
@@ -335,13 +335,11 @@ private:
                     return mpp_buffer_group_get(&pkt_group, t, MPP_BUFFER_INTERNAL, MODULE_TAG, __FUNCTION__) == MPP_OK;
                 };
 
-                // Prefer dma_heap when available (newer kernels), then ion/drm as fallback.
-                if (!try_group(static_cast<MppBufferType>(MPP_BUFFER_TYPE_DMA_HEAP | MPP_BUFFER_FLAGS_CACHABLE)) &&
-                    !try_group(static_cast<MppBufferType>(MPP_BUFFER_TYPE_DMA_HEAP)) &&
-                    !try_group(static_cast<MppBufferType>(MPP_BUFFER_TYPE_ION | MPP_BUFFER_FLAGS_CACHABLE)) &&
-                    !try_group(static_cast<MppBufferType>(MPP_BUFFER_TYPE_ION)) &&
-                    !try_group(static_cast<MppBufferType>(MPP_BUFFER_TYPE_DRM | MPP_BUFFER_FLAGS_CACHABLE)) &&
-                    !try_group(static_cast<MppBufferType>(MPP_BUFFER_TYPE_DRM))) {
+                // NOTE: Packet(bitstream) buffer should be CPU-accessible; use NORMAL first to avoid mmap/ptr issues.
+                if (!try_group(MPP_BUFFER_TYPE_NORMAL) &&
+                    !try_group(MPP_BUFFER_TYPE_ION) &&
+                    !try_group(MPP_BUFFER_TYPE_DRM) &&
+                    !try_group(MPP_BUFFER_TYPE_DMA_HEAP)) {
                     pkt_group = nullptr;
                     return false;
                 }