147 lines
4.5 KiB
C++
147 lines
4.5 KiB
C++
/*
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* Copyright 2014, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MEDIA_CODEC_INFO_H_
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#define MEDIA_CODEC_INFO_H_
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#include <binder/Parcel.h>
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#include <media/stagefright/foundation/ABase.h>
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#include <media/stagefright/foundation/AString.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <utils/KeyedVector.h>
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#include <utils/RefBase.h>
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#include <utils/Vector.h>
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#include <utils/StrongPointer.h>
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namespace android {
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struct AMessage;
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class Parcel;
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typedef KeyedVector<AString, AString> CodecSettings;
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struct MediaCodecInfo : public RefBase {
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struct ProfileLevel {
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uint32_t mProfile;
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uint32_t mLevel;
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};
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struct Capabilities : public RefBase {
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enum {
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// decoder flags
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kFlagSupportsAdaptivePlayback = 1 << 0,
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kFlagSupportsSecurePlayback = 1 << 1,
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kFlagSupportsTunneledPlayback = 1 << 2,
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// encoder flags
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kFlagSupportsIntraRefresh = 1 << 0,
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};
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void getSupportedProfileLevels(Vector<ProfileLevel> *profileLevels) const;
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void getSupportedColorFormats(Vector<uint32_t> *colorFormats) const;
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uint32_t getFlags() const;
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const sp<AMessage> getDetails() const;
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protected:
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Vector<ProfileLevel> mProfileLevels;
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Vector<uint32_t> mColorFormats;
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uint32_t mFlags;
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sp<AMessage> mDetails;
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Capabilities();
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private:
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// read object from parcel even if object creation fails
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static sp<Capabilities> FromParcel(const Parcel &parcel);
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status_t writeToParcel(Parcel *parcel) const;
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DISALLOW_EVIL_CONSTRUCTORS(Capabilities);
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friend class MediaCodecInfo;
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};
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// Use a subclass to allow setting fields on construction without allowing
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// to do the same throughout the framework.
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struct CapabilitiesBuilder : public Capabilities {
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void addProfileLevel(uint32_t profile, uint32_t level);
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void addColorFormat(uint32_t format);
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void addFlags(uint32_t flags);
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};
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bool isEncoder() const;
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bool hasQuirk(const char *name) const;
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void getSupportedMimes(Vector<AString> *mimes) const;
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const sp<Capabilities> getCapabilitiesFor(const char *mime) const;
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const char *getCodecName() const;
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/**
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* Serialization over Binder
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*/
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static sp<MediaCodecInfo> FromParcel(const Parcel &parcel);
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status_t writeToParcel(Parcel *parcel) const;
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private:
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// variable set only in constructor - these are accessed by MediaCodecList
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// to avoid duplication of same variables
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AString mName;
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bool mIsEncoder;
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bool mHasSoleMime; // was initialized with mime
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Vector<AString> mQuirks;
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KeyedVector<AString, sp<Capabilities> > mCaps;
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sp<Capabilities> mCurrentCaps; // currently initalized capabilities
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ssize_t getCapabilityIndex(const char *mime) const;
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/* Methods used by MediaCodecList to construct the info
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* object from XML.
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*
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* After info object is created:
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* - additional quirks can be added
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* - additional mimes can be added
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* - OMX codec capabilities can be set for the current mime-type
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* - a capability detail can be set for the current mime-type
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* - a feature can be set for the current mime-type
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* - info object can be completed when parsing of a mime-type is done
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*/
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MediaCodecInfo(AString name, bool encoder, const char *mime);
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void addQuirk(const char *name);
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status_t addMime(const char *mime);
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status_t updateMime(const char *mime);
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status_t initializeCapabilities(const sp<Capabilities> &caps);
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void addDetail(const AString &key, const AString &value);
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void addFeature(const AString &key, int32_t value);
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void addFeature(const AString &key, const char *value);
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void removeMime(const char *mime);
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void complete();
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DISALLOW_EVIL_CONSTRUCTORS(MediaCodecInfo);
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friend class MediaCodecList;
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friend class MediaCodecListOverridesTest;
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};
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} // namespace android
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#endif // MEDIA_CODEC_INFO_H_
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