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+/*
+ * Copyright 2013, The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef VIDEO_FORMATS_H_
+
+#define VIDEO_FORMATS_H_
+
+#include <media/stagefright/foundation/ABase.h>
+
+#include <stdint.h>
+
+namespace android {
+
+struct AString;
+
+// This class encapsulates that video resolution capabilities of a wfd source
+// or sink as outlined in the wfd specs. Currently three sets of resolutions
+// are specified, each of which supports up to 32 resolutions.
+// In addition to its capabilities each sink/source also publishes its
+// "native" resolution, presumably one that is preferred among all others
+// because it wouldn't require any scaling and directly corresponds to the
+// display capabilities/pixels.
+struct VideoFormats {
+ VideoFormats();
+
+ struct config_t {
+ size_t width, height, framesPerSecond;
+ bool interlaced;
+ unsigned char profile, level;
+ };
+
+ enum ProfileType {
+ PROFILE_CBP = 0,
+ PROFILE_CHP,
+ kNumProfileTypes,
+ };
+
+ enum LevelType {
+ LEVEL_31 = 0,
+ LEVEL_32,
+ LEVEL_40,
+ LEVEL_41,
+ LEVEL_42,
+ kNumLevelTypes,
+ };
+
+ enum ResolutionType {
+ RESOLUTION_CEA,
+ RESOLUTION_VESA,
+ RESOLUTION_HH,
+ kNumResolutionTypes,
+ };
+
+ void setNativeResolution(ResolutionType type, size_t index);
+ void getNativeResolution(ResolutionType *type, size_t *index) const;
+
+ void disableAll();
+ void enableAll();
+ void enableResolutionUpto(
+ ResolutionType type, size_t index,
+ ProfileType profile, LevelType level);
+
+ void setResolutionEnabled(
+ ResolutionType type, size_t index, bool enabled = true);
+
+ bool isResolutionEnabled(ResolutionType type, size_t index) const;
+
+ void setProfileLevel(
+ ResolutionType type, size_t index,
+ ProfileType profile, LevelType level);
+
+ void getProfileLevel(
+ ResolutionType type, size_t index,
+ ProfileType *profile, LevelType *level) const;
+
+ static bool GetConfiguration(
+ ResolutionType type, size_t index,
+ size_t *width, size_t *height, size_t *framesPerSecond,
+ bool *interlaced);
+
+ static bool GetProfileLevel(
+ ProfileType profile, LevelType level,
+ unsigned *profileIdc, unsigned *levelIdc,
+ unsigned *constraintSet);
+
+ bool parseFormatSpec(const char *spec);
+ AString getFormatSpec(bool forM4Message = false) const;
+
+ static bool PickBestFormat(
+ const VideoFormats &sinkSupported,
+ const VideoFormats &sourceSupported,
+ ResolutionType *chosenType,
+ size_t *chosenIndex,
+ ProfileType *chosenProfile,
+ LevelType *chosenLevel);
+
+private:
+ bool parseH264Codec(const char *spec);
+ ResolutionType mNativeType;
+ size_t mNativeIndex;
+
+ uint32_t mResolutionEnabled[kNumResolutionTypes];
+ static const config_t mResolutionTable[kNumResolutionTypes][32];
+ config_t mConfigs[kNumResolutionTypes][32];
+
+ DISALLOW_EVIL_CONSTRUCTORS(VideoFormats);
+};
+
+} // namespace android
+
+#endif // VIDEO_FORMATS_H_
+