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105 lines
2.8 KiB
105 lines
2.8 KiB
/*
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* Copyright (C) 2021 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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//#define LOG_NDEBUG 0
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#define LOG_TAG "ManageShapingCodecs"
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#include <utils/Log.h>
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#include <mutex>
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#include <string>
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#include <inttypes.h>
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#include <media/NdkMediaFormat.h>
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#include "CodecProperties.h"
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namespace android {
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namespace mediaformatshaper {
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// manage the list of codec information.
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//
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// XXX: the mutex here is too heavy; rework that.
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//
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static std::mutex sCodecMutex;
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static std::map<std::string, CodecProperties*> sCodecTraits;
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CodecProperties *findCodec(const char *codecName, const char *mediaType) {
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CodecProperties *codec = nullptr;
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// synthesize a name from both codecName + mediaType
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// some codecs support multiple media types and may have different capabilities
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// for each media type
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//
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std::string codecKey = codecName;
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codecKey += "-";
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codecKey += mediaType;
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std::lock_guard _l(sCodecMutex);
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auto it = sCodecTraits.find(codecKey);
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if (it != sCodecTraits.end()) {
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codec = it->second;
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}
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return codec;
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}
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CodecProperties *registerCodec(CodecProperties *codec, const char *codecName,
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const char *mediaType) {
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CodecProperties *registeredCodec = nullptr;
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if (codec->isRegistered()) {
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return nullptr;
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}
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// synthesize a name from both codecName + mediaType
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// some codecs support multiple media types and may have different capabilities
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// for each media type
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//
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std::string codecKey = codecName;
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codecKey += "-";
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codecKey += mediaType;
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std::lock_guard _l(sCodecMutex);
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auto it = sCodecTraits.find(codecKey);
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if (it != sCodecTraits.end()) {
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registeredCodec = it->second;
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}
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if (registeredCodec == nullptr) {
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// register the one that was passed to us
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ALOGV("Creating entry for codec %s, mediaType %s, key %s", codecName, mediaType,
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codecKey.c_str());
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sCodecTraits.insert({codecKey, codec});
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registeredCodec = codec;
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codec->setRegistered(true);
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} else {
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// one has already been registered, use that
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// and discard the candidate
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delete codec;
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codec = nullptr;
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}
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return registeredCodec;
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}
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} // namespace mediaformatshaper
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} // namespace android
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