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/*
* Copyright 2012, 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 MEDIA_CODEC_LIST_H_
#define MEDIA_CODEC_LIST_H_
#include <media/stagefright/foundation/ABase.h>
#include <media/stagefright/foundation/AString.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/KeyedVector.h>
#include <utils/Vector.h>
namespace android {
struct MediaCodecList {
static const MediaCodecList *getInstance();
ssize_t findCodecByType(
const char *type, bool encoder, size_t startIndex = 0) const;
ssize_t findCodecByName(const char *name) const;
size_t countCodecs() const;
const char *getCodecName(size_t index) const;
bool isEncoder(size_t index) const;
bool codecHasQuirk(size_t index, const char *quirkName) const;
status_t getSupportedTypes(size_t index, Vector<AString> *types) const;
struct ProfileLevel {
uint32_t mProfile;
uint32_t mLevel;
};
status_t getCodecCapabilities(
size_t index, const char *type,
Vector<ProfileLevel> *profileLevels,
Vector<uint32_t> *colorFormats) const;
private:
enum Section {
SECTION_TOPLEVEL,
SECTION_DECODERS,
SECTION_DECODER,
SECTION_ENCODERS,
SECTION_ENCODER,
};
struct CodecInfo {
AString mName;
bool mIsEncoder;
uint32_t mTypes;
uint32_t mQuirks;
};
static MediaCodecList *sCodecList;
status_t mInitCheck;
Section mCurrentSection;
int32_t mDepth;
Vector<CodecInfo> mCodecInfos;
KeyedVector<AString, size_t> mCodecQuirks;
KeyedVector<AString, size_t> mTypes;
MediaCodecList();
~MediaCodecList();
status_t initCheck() const;
void parseXMLFile(FILE *file);
static void StartElementHandlerWrapper(
void *me, const char *name, const char **attrs);
static void EndElementHandlerWrapper(void *me, const char *name);
void startElementHandler(const char *name, const char **attrs);
void endElementHandler(const char *name);
status_t addMediaCodecFromAttributes(bool encoder, const char **attrs);
void addMediaCodec(bool encoder, const char *name, const char *type = NULL);
status_t addQuirk(const char **attrs);
status_t addTypeFromAttributes(const char **attrs);
void addType(const char *name);
DISALLOW_EVIL_CONSTRUCTORS(MediaCodecList);
};
} // namespace android
#endif // MEDIA_CODEC_LIST_H_
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