feat(windows): Support for BytesSource on Windows

feature_parity_table.md

@@ -31,7 +31,7 @@ Note: LLM means Low Latency Mode.
         <tr><td>local asset</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td></tr>
         <tr><td>external URL file</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td></tr>
         <tr><td>external URL stream</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td></tr>
-        <tr><td>byte array</td><td>SDK >=23</td><td>not yet</td><td>not yet</td><td>not yet</td><td>not yet</td><td>not yet</td></tr>
+        <tr><td>byte array</td><td>SDK >=23</td><td>not yet</td><td>not yet</td><td>not yet</td><td>yes</td><td>not yet</td></tr>
         <tr><td colspan="7"><strong>Audio Config</strong></td></tr>
         <tr><td>set url</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td></tr>
         <tr><td>audio cache (pre-load)</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td><td>yes</td></tr>

packages/audioplayers/example/integration_test/platform_features.dart

@@ -58,7 +58,6 @@ class PlatformFeatures {
   );
 
   static const windowsPlatformFeatures = PlatformFeatures(
-    hasBytesSource: false,
     hasPlaylistSourceType: false,
     hasLowLatency: false,
     hasReleaseModeRelease: false,

packages/audioplayers/lib/src/audio_cache.dart

@@ -125,7 +125,8 @@ class AudioCache {
       throw 'This method cannot be used on web!';
     }
     final uri = await load(fileName);
-    return fileSystem.file(uri.toFilePath(windows: false));
+    return fileSystem.file(uri.toFilePath(
+        windows: defaultTargetPlatform == TargetPlatform.windows));
   }
 
   /// Loads a single [fileName] to the cache but returns it as a list of bytes.

packages/audioplayers_windows/windows/CMakeLists.txt

@@ -52,6 +52,7 @@ target_compile_definitions(${PLUGIN_NAME} PRIVATE FLUTTER_PLUGIN_IMPL)
 target_include_directories(${PLUGIN_NAME} INTERFACE
   "${CMAKE_CURRENT_SOURCE_DIR}/include")
 target_link_libraries(${PLUGIN_NAME} PRIVATE flutter flutter_wrapper_plugin)
+target_link_libraries(${PLUGIN_NAME} PRIVATE shlwapi)
 
 # List of absolute paths to libraries that should be bundled with the plugin
 set(audioplayers_windows_bundled_libraries

packages/audioplayers_windows/windows/audio_player.cpp

@@ -6,6 +6,7 @@
 #include <flutter/event_stream_handler_functions.h>
 #include <flutter/plugin_registrar_windows.h>
 #include <flutter/standard_method_codec.h>
+#include <shlwapi.h>  // for SHCreateMemStream
 #include <shobjidl.h>
 #include <windows.h>
 
@@ -42,6 +43,8 @@ AudioPlayer::AudioPlayer(
   m_mediaEngineWrapper->Initialize();
 }
 
+AudioPlayer::~AudioPlayer() {}
+
 // This method should be called asynchronously, to avoid freezing UI
 void AudioPlayer::SetSourceUrl(std::string url) {
   if (_url != url) {
@@ -77,7 +80,36 @@ void AudioPlayer::SetSourceUrl(std::string url) {
   }
 }
 
-AudioPlayer::~AudioPlayer() {}
+void AudioPlayer::SetSourceBytes(std::vector<uint8_t> bytes) {
+  _isInitialized = false;
+  _url.clear();
+  size_t size = bytes.size();
+
+  try {
+    winrt::com_ptr<IMFSourceResolver> sourceResolver;
+    THROW_IF_FAILED(MFCreateSourceResolver(sourceResolver.put()));
+    constexpr uint32_t sourceResolutionFlags =
+        MF_RESOLUTION_MEDIASOURCE |
+        MF_RESOLUTION_CONTENT_DOES_NOT_HAVE_TO_MATCH_EXTENSION_OR_MIME_TYPE |
+        MF_RESOLUTION_READ;
+    MF_OBJECT_TYPE objectType = {};
+
+    winrt::com_ptr<IMFMediaSource> mediaSource;
+
+    IStream* pstm =
+        SHCreateMemStream(bytes.data(), static_cast<unsigned int>(size));
+    IMFByteStream* stream = NULL;
+    MFCreateMFByteStreamOnStream(pstm, &stream);
+
+    sourceResolver->CreateObjectFromByteStream(
+        stream, nullptr, sourceResolutionFlags, nullptr, &objectType,
+        reinterpret_cast<IUnknown**>(mediaSource.put_void()));
+    m_mediaEngineWrapper->SetMediaSource(mediaSource.get());
+  } catch (...) {
+    // Forward errors to event stream, as this is called asynchronously
+    this->OnError("WindowsAudioError", "Error setting bytes", nullptr);
+  }
+}
 
 void AudioPlayer::OnMediaError(MF_MEDIA_ENGINE_ERR error, HRESULT hr) {
   LOG_HR_MSG(hr, "MediaEngine error (%d)", error);
@@ -199,6 +231,7 @@ void AudioPlayer::ReleaseMediaSource() {
     m_mediaEngineWrapper->Pause();
   }
   m_mediaEngineWrapper->ReleaseMediaSource();
+  _url.clear();
   _isInitialized = false;
 }
 

packages/audioplayers_windows/windows/audio_player.h

@@ -77,6 +77,8 @@ class AudioPlayer {
 
   void SeekTo(double seek);
 
+  void SetSourceBytes(std::vector<uint8_t> bytes);
+
   void SetSourceUrl(std::string url);
 
   void OnLog(const std::string& message);

packages/audioplayers_windows/windows/audioplayers_windows_plugin.cpp

@@ -178,6 +178,17 @@ void AudioplayersWindowsPlugin::HandleMethodCall(
     }
 
     std::thread(&AudioPlayer::SetSourceUrl, player, url).detach();
+  } else if (method_call.method_name().compare("setSourceBytes") == 0) {
+    auto data = GetArgument<std::vector<uint8_t>>("bytes", args,
+                                                  std::vector<uint8_t>{});
+
+    if (data.empty()) {
+      result->Error("WindowsAudioError",
+                    "Null bytes received on setSourceBytes", nullptr);
+      return;
+    }
+
+    std::thread(&AudioPlayer::SetSourceBytes, player, data).detach();
   } else if (method_call.method_name().compare("getDuration") == 0) {
     auto duration = player->GetDuration();
     result->Success(isnan(duration)