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-rw-r--r--dom/media/ipc/MFMediaEngineUtils.cpp179
1 files changed, 179 insertions, 0 deletions
diff --git a/dom/media/ipc/MFMediaEngineUtils.cpp b/dom/media/ipc/MFMediaEngineUtils.cpp
new file mode 100644
index 0000000000..01c4d4d07c
--- /dev/null
+++ b/dom/media/ipc/MFMediaEngineUtils.cpp
@@ -0,0 +1,179 @@
+/* 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 "MFMediaEngineUtils.h"
+
+#include "WMFUtils.h"
+
+namespace mozilla {
+
+#define ENUM_TO_STR(enumVal) \
+ case enumVal: \
+ return #enumVal
+
+#define ENUM_TO_STR2(guid, enumVal) \
+ if (guid == enumVal) { \
+ return #enumVal; \
+ }
+
+const char* MediaEventTypeToStr(MediaEventType aType) {
+ switch (aType) {
+ ENUM_TO_STR(MESourceUnknown);
+ ENUM_TO_STR(MESourceStarted);
+ ENUM_TO_STR(MEStreamStarted);
+ ENUM_TO_STR(MESourceSeeked);
+ ENUM_TO_STR(MEStreamSeeked);
+ ENUM_TO_STR(MENewStream);
+ ENUM_TO_STR(MEUpdatedStream);
+ ENUM_TO_STR(MESourceStopped);
+ ENUM_TO_STR(MEStreamStopped);
+ ENUM_TO_STR(MESourcePaused);
+ ENUM_TO_STR(MEStreamPaused);
+ ENUM_TO_STR(MEEndOfPresentation);
+ ENUM_TO_STR(MEEndOfStream);
+ ENUM_TO_STR(MEMediaSample);
+ ENUM_TO_STR(MEStreamTick);
+ ENUM_TO_STR(MEStreamThinMode);
+ ENUM_TO_STR(MEStreamFormatChanged);
+ ENUM_TO_STR(MESourceRateChanged);
+ ENUM_TO_STR(MEEndOfPresentationSegment);
+ ENUM_TO_STR(MESourceCharacteristicsChanged);
+ ENUM_TO_STR(MESourceRateChangeRequested);
+ ENUM_TO_STR(MESourceMetadataChanged);
+ ENUM_TO_STR(MESequencerSourceTopologyUpdated);
+ default:
+ return "Unknown MediaEventType";
+ }
+}
+
+const char* MediaEngineEventToStr(MF_MEDIA_ENGINE_EVENT aEvent) {
+ switch (aEvent) {
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_LOADSTART);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_PROGRESS);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_SUSPEND);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_ABORT);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_ERROR);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_EMPTIED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_STALLED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_PLAY);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_PAUSE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_LOADEDMETADATA);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_LOADEDDATA);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_WAITING);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_PLAYING);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_CANPLAY);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_CANPLAYTHROUGH);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_SEEKING);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_SEEKED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_TIMEUPDATE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_ENDED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_RATECHANGE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_DURATIONCHANGE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_VOLUMECHANGE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_FORMATCHANGE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_PURGEQUEUEDEVENTS);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_TIMELINE_MARKER);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_BALANCECHANGE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_DOWNLOADCOMPLETE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_BUFFERINGSTARTED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_BUFFERINGENDED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_FRAMESTEPCOMPLETED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_NOTIFYSTABLESTATE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_FIRSTFRAMEREADY);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_TRACKSCHANGE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_OPMINFO);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_RESOURCELOST);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_DELAYLOADEVENT_CHANGED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_STREAMRENDERINGERROR);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_SUPPORTEDRATES_CHANGED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_EVENT_AUDIOENDPOINTCHANGE);
+ default:
+ return "Unknown MF_MEDIA_ENGINE_EVENT";
+ }
+}
+
+const char* MFMediaEngineErrorToStr(MFMediaEngineError aError) {
+ switch (aError) {
+ ENUM_TO_STR(MF_MEDIA_ENGINE_ERR_NOERROR);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_ERR_ABORTED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_ERR_NETWORK);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_ERR_DECODE);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_ERR_SRC_NOT_SUPPORTED);
+ ENUM_TO_STR(MF_MEDIA_ENGINE_ERR_ENCRYPTED);
+ default:
+ return "Unknown MFMediaEngineError";
+ }
+}
+
+const char* GUIDToStr(GUID aGUID) {
+ ENUM_TO_STR2(aGUID, MFAudioFormat_MP3)
+ ENUM_TO_STR2(aGUID, MFAudioFormat_AAC)
+ ENUM_TO_STR2(aGUID, MFAudioFormat_Vorbis)
+ ENUM_TO_STR2(aGUID, MFAudioFormat_Opus)
+ ENUM_TO_STR2(aGUID, MFVideoFormat_H264)
+ ENUM_TO_STR2(aGUID, MFVideoFormat_VP80)
+ ENUM_TO_STR2(aGUID, MFVideoFormat_VP90)
+ ENUM_TO_STR2(aGUID, MFVideoFormat_AV1)
+ ENUM_TO_STR2(aGUID, MFMediaType_Audio)
+ return "Unknown GUID";
+}
+
+const char* MFVideoRotationFormatToStr(MFVideoRotationFormat aFormat) {
+ switch (aFormat) {
+ ENUM_TO_STR(MFVideoRotationFormat_0);
+ ENUM_TO_STR(MFVideoRotationFormat_90);
+ ENUM_TO_STR(MFVideoRotationFormat_180);
+ ENUM_TO_STR(MFVideoRotationFormat_270);
+ default:
+ return "Unknown MFVideoRotationFormat";
+ }
+}
+
+const char* MFVideoTransferFunctionToStr(MFVideoTransferFunction aFunc) {
+ switch (aFunc) {
+ ENUM_TO_STR(MFVideoTransFunc_Unknown);
+ ENUM_TO_STR(MFVideoTransFunc_709);
+ ENUM_TO_STR(MFVideoTransFunc_2020);
+ ENUM_TO_STR(MFVideoTransFunc_sRGB);
+ default:
+ return "Unsupported MFVideoTransferFunction";
+ }
+}
+
+const char* MFVideoPrimariesToStr(MFVideoPrimaries aPrimaries) {
+ switch (aPrimaries) {
+ ENUM_TO_STR(MFVideoPrimaries_Unknown);
+ ENUM_TO_STR(MFVideoPrimaries_BT709);
+ ENUM_TO_STR(MFVideoPrimaries_BT2020);
+ default:
+ return "Unsupported MFVideoPrimaries";
+ }
+}
+
+void ByteArrayFromGUID(REFGUID aGuidIn, nsTArray<uint8_t>& aByteArrayOut) {
+ aByteArrayOut.SetLength(sizeof(GUID));
+ // GUID is little endian. The byte array in network order is big endian.
+ GUID* reversedGuid = reinterpret_cast<GUID*>(aByteArrayOut.Elements());
+ *reversedGuid = aGuidIn;
+ reversedGuid->Data1 = _byteswap_ulong(aGuidIn.Data1);
+ reversedGuid->Data2 = _byteswap_ushort(aGuidIn.Data2);
+ reversedGuid->Data3 = _byteswap_ushort(aGuidIn.Data3);
+ // Data4 is already a byte array so no need to byte swap.
+}
+
+void GUIDFromByteArray(const nsTArray<uint8_t>& aByteArrayIn, GUID& aGuidOut) {
+ MOZ_ASSERT(aByteArrayIn.Length() == sizeof(GUID));
+ GUID* reversedGuid =
+ reinterpret_cast<GUID*>(const_cast<uint8_t*>(aByteArrayIn.Elements()));
+ aGuidOut = *reversedGuid;
+ aGuidOut.Data1 = _byteswap_ulong(reversedGuid->Data1);
+ aGuidOut.Data2 = _byteswap_ushort(reversedGuid->Data2);
+ aGuidOut.Data3 = _byteswap_ushort(reversedGuid->Data3);
+ // Data4 is already a byte array so no need to byte swap.
+}
+
+#undef ENUM_TO_STR
+#undef ENUM_TO_STR2
+
+} // namespace mozilla