diff --git a/media/base/demuxer_memory_limit_starboard.cc b/media/base/demuxer_memory_limit_starboard.cc
new file mode 100644
index 00000000000..188878d8715
--- /dev/null
+++ b/media/base/demuxer_memory_limit_starboard.cc
@@ -0,0 +1,46 @@
+// Copyright 2022 The Cobalt Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#if !defined(STARBOARD)
+#error "This file only works with Cobalt/Starboard."
+#endif  // !defined(STARBOARD)
+
+#include "media/base/demuxer_memory_limit.h"
+
+#include "media/base/decoder_buffer.h"
+#include "media/base/starboard_utils.h"
+#include "media/base/video_codecs.h"
+#include "base/logging.h"
+
+namespace media {
+
+size_t GetDemuxerStreamAudioMemoryLimit(
+    const AudioDecoderConfig* /*audio_config*/) {
+  return DecoderBuffer::Allocator::GetInstance()->GetAudioBufferBudget();
+}
+
+size_t GetDemuxerStreamVideoMemoryLimit(
+    Demuxer::DemuxerTypes /*demuxer_type*/,
+    const VideoDecoderConfig* video_config,
+    const std::string& mime_type) {
+  return static_cast<size_t>(
+      GetSbMediaVideoBufferBudget(video_config, mime_type));
+}
+
+size_t GetDemuxerMemoryLimit(Demuxer::DemuxerTypes demuxer_type) {
+  return GetDemuxerStreamAudioMemoryLimit(nullptr) +
+         GetDemuxerStreamVideoMemoryLimit(demuxer_type, nullptr, "");
+}
+
+}  // namespace media