1 files changed, 67 insertions, 0 deletions
diff --git a/dom/media/webrtc/libwebrtcglue/MediaDataCodec.cpp b/dom/media/webrtc/libwebrtcglue/MediaDataCodec.cpp
new file mode 100644
index 0000000000..7824324325
--- /dev/null
+++ b/dom/media/webrtc/libwebrtcglue/MediaDataCodec.cpp
@@ -0,0 +1,67 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MediaDataCodec.h"
+
+#include "PDMFactory.h"
+#include "WebrtcGmpVideoCodec.h"
+#include "WebrtcMediaDataDecoderCodec.h"
+#include "WebrtcMediaDataEncoderCodec.h"
+#include "mozilla/StaticPrefs_media.h"
+
+namespace mozilla {
+
+/* static */
+WebrtcVideoEncoder* MediaDataCodec::CreateEncoder(
+    webrtc::VideoCodecType aCodecType) {
+#if defined(MOZ_APPLEMEDIA) || defined(MOZ_WIDGET_ANDROID)
+  if (aCodecType == webrtc::VideoCodecType::kVideoCodecH264) {
+    return new WebrtcVideoEncoderProxy(new WebrtcMediaDataEncoder());
+  }
+#endif
+  return nullptr;
+}
+
+/* static */
+WebrtcVideoDecoder* MediaDataCodec::CreateDecoder(
+    webrtc::VideoCodecType aCodecType) {
+  switch (aCodecType) {
+    case webrtc::VideoCodecType::kVideoCodecVP8:
+    case webrtc::VideoCodecType::kVideoCodecVP9:
+      if (!StaticPrefs::media_navigator_mediadatadecoder_vpx_enabled()) {
+        return nullptr;
+      }
+      break;
+    case webrtc::VideoCodecType::kVideoCodecH264:
+      if (!StaticPrefs::media_navigator_mediadatadecoder_h264_enabled()) {
+        return nullptr;
+      }
+      break;
+    default:
+      return nullptr;
+  }
+
+  nsAutoCString codec;
+  switch (aCodecType) {
+    case webrtc::VideoCodecType::kVideoCodecVP8:
+      codec = "video/vp8";
+      break;
+    case webrtc::VideoCodecType::kVideoCodecVP9:
+      codec = "video/vp9";
+      break;
+    case webrtc::VideoCodecType::kVideoCodecH264:
+      codec = "video/avc";
+      break;
+    default:
+      return nullptr;
+  }
+  RefPtr<PDMFactory> pdm = new PDMFactory();
+  if (!pdm->SupportsMimeType(codec, nullptr /* dddoctor */)) {
+    return nullptr;
+  }
+
+  return new WebrtcMediaDataDecoder(codec);
+}
+
+}  // namespace mozilla