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/*
* Copyright (C) 2014 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 CODEC_BASE_H_
#define CODEC_BASE_H_
#include <stdint.h>
#include <media/IOMX.h>
#include <media/stagefright/foundation/AHandler.h>
namespace android {
struct ABuffer;
struct PersistentSurface;
struct CodecBase : public AHandler {
enum {
kWhatFillThisBuffer = 'fill',
kWhatDrainThisBuffer = 'drai',
kWhatEOS = 'eos ',
kWhatShutdownCompleted = 'scom',
kWhatFlushCompleted = 'fcom',
kWhatOutputFormatChanged = 'outC',
kWhatError = 'erro',
kWhatComponentAllocated = 'cAll',
kWhatComponentConfigured = 'cCon',
kWhatInputSurfaceCreated = 'isfc',
kWhatInputSurfaceAccepted = 'isfa',
kWhatSignaledInputEOS = 'seos',
kWhatBuffersAllocated = 'allc',
kWhatOutputFramesRendered = 'outR',
};
virtual void setNotificationMessage(const sp<AMessage> &msg) = 0;
virtual void initiateAllocateComponent(const sp<AMessage> &msg) = 0;
virtual void initiateConfigureComponent(const sp<AMessage> &msg) = 0;
virtual void initiateCreateInputSurface() = 0;
virtual void initiateSetInputSurface(
const sp<PersistentSurface> &surface) = 0;
virtual void initiateStart() = 0;
virtual void initiateShutdown(bool keepComponentAllocated = false) = 0;
// require an explicit message handler
virtual void onMessageReceived(const sp<AMessage> &msg) = 0;
virtual status_t setSurface(const sp<Surface> &surface) { return INVALID_OPERATION; }
virtual void signalFlush() = 0;
virtual void signalResume() = 0;
virtual void signalRequestIDRFrame() = 0;
virtual void signalSetParameters(const sp<AMessage> &msg) = 0;
virtual void signalEndOfInputStream() = 0;
struct PortDescription : public RefBase {
virtual size_t countBuffers() = 0;
virtual IOMX::buffer_id bufferIDAt(size_t index) const = 0;
virtual sp<ABuffer> bufferAt(size_t index) const = 0;
protected:
PortDescription();
virtual ~PortDescription();
private:
DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
};
protected:
CodecBase();
virtual ~CodecBase();
private:
DISALLOW_EVIL_CONSTRUCTORS(CodecBase);
};
} // namespace android
#endif // CODEC_BASE_H_
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