1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "ICameraRecordingProxyListener"
19#include <camera/CameraUtils.h>
20#include <camera/ICameraRecordingProxyListener.h>
21#include <binder/IMemory.h>
22#include <binder/Parcel.h>
23#include <media/hardware/HardwareAPI.h>
24#include <utils/Log.h>
25
26namespace android {
27
28enum {
29    DATA_CALLBACK_TIMESTAMP = IBinder::FIRST_CALL_TRANSACTION,
30    RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP,
31    RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH
32};
33
34class BpCameraRecordingProxyListener: public BpInterface<ICameraRecordingProxyListener>
35{
36public:
37    explicit BpCameraRecordingProxyListener(const sp<IBinder>& impl)
38        : BpInterface<ICameraRecordingProxyListener>(impl)
39    {
40    }
41
42    void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& imageData)
43    {
44        ALOGV("dataCallback");
45        Parcel data, reply;
46        data.writeInterfaceToken(ICameraRecordingProxyListener::getInterfaceDescriptor());
47        data.writeInt64(timestamp);
48        data.writeInt32(msgType);
49        data.writeStrongBinder(IInterface::asBinder(imageData));
50        remote()->transact(DATA_CALLBACK_TIMESTAMP, data, &reply, IBinder::FLAG_ONEWAY);
51    }
52
53    void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp, native_handle_t* handle) {
54        ALOGV("recordingFrameHandleCallbackTimestamp");
55        Parcel data, reply;
56        data.writeInterfaceToken(ICameraRecordingProxyListener::getInterfaceDescriptor());
57        data.writeInt64(timestamp);
58        data.writeNativeHandle(handle);
59        remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP, data, &reply,
60                IBinder::FLAG_ONEWAY);
61
62        // The native handle is dupped in ICameraClient so we need to free it here.
63        native_handle_close(handle);
64        native_handle_delete(handle);
65    }
66
67    void recordingFrameHandleCallbackTimestampBatch(
68            const std::vector<nsecs_t>& timestamps,
69            const std::vector<native_handle_t*>& handles) {
70        ALOGV("recordingFrameHandleCallbackTimestampBatch");
71        Parcel data, reply;
72        data.writeInterfaceToken(ICameraRecordingProxyListener::getInterfaceDescriptor());
73
74        uint32_t n = timestamps.size();
75        if (n != handles.size()) {
76            ALOGE("%s: size of timestamps(%zu) and handles(%zu) mismatch!",
77                    __FUNCTION__, timestamps.size(), handles.size());
78            return;
79        }
80        data.writeUint32(n);
81        for (auto ts : timestamps) {
82            data.writeInt64(ts);
83        }
84        for (auto& handle : handles) {
85            data.writeNativeHandle(handle);
86        }
87        remote()->transact(RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH, data, &reply,
88                IBinder::FLAG_ONEWAY);
89
90        // The native handle is dupped in ICameraClient so we need to free it here.
91        for (auto& handle : handles) {
92            native_handle_close(handle);
93            native_handle_delete(handle);
94        }
95    }
96};
97
98IMPLEMENT_META_INTERFACE(CameraRecordingProxyListener, "android.hardware.ICameraRecordingProxyListener");
99
100// ----------------------------------------------------------------------
101
102status_t BnCameraRecordingProxyListener::onTransact(
103    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
104{
105    switch(code) {
106        case DATA_CALLBACK_TIMESTAMP: {
107            ALOGV("DATA_CALLBACK_TIMESTAMP");
108            CHECK_INTERFACE(ICameraRecordingProxyListener, data, reply);
109            nsecs_t timestamp = data.readInt64();
110            int32_t msgType = data.readInt32();
111            sp<IMemory> imageData = interface_cast<IMemory>(data.readStrongBinder());
112            dataCallbackTimestamp(timestamp, msgType, imageData);
113            return NO_ERROR;
114        } break;
115        case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP: {
116            ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP");
117            CHECK_INTERFACE(ICameraRecordingProxyListener, data, reply);
118            nsecs_t timestamp;
119            status_t res = data.readInt64(&timestamp);
120            if (res != OK) {
121                ALOGE("%s: Failed to read timestamp: %s (%d)", __FUNCTION__, strerror(-res), res);
122                return BAD_VALUE;
123            }
124
125            native_handle_t* handle = data.readNativeHandle();
126            if (handle == nullptr) {
127                ALOGE("%s: Received a null native handle", __FUNCTION__);
128                return BAD_VALUE;
129            }
130            // The native handle will be freed in
131            // BpCameraRecordingProxy::releaseRecordingFrameHandle.
132            recordingFrameHandleCallbackTimestamp(timestamp, handle);
133            return NO_ERROR;
134        } break;
135        case RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH: {
136            ALOGV("RECORDING_FRAME_HANDLE_CALLBACK_TIMESTAMP_BATCH");
137            CHECK_INTERFACE(ICameraRecordingProxyListener, data, reply);
138            uint32_t n = 0;
139            status_t res = data.readUint32(&n);
140            if (res != OK) {
141                ALOGE("%s: Failed to read batch size: %s (%d)", __FUNCTION__, strerror(-res), res);
142                return BAD_VALUE;
143            }
144            std::vector<nsecs_t> timestamps;
145            std::vector<native_handle_t*> handles;
146            timestamps.reserve(n);
147            handles.reserve(n);
148            for (uint32_t i = 0; i < n; i++) {
149                res = data.readInt64(&timestamps[i]);
150                if (res != OK) {
151                    ALOGE("%s: Failed to read timestamp[%d]: %s (%d)",
152                            __FUNCTION__, i, strerror(-res), res);
153                    return BAD_VALUE;
154                }
155            }
156            for (uint32_t i = 0; i < n; i++) {
157                native_handle_t* handle = data.readNativeHandle();
158                if (handle == nullptr) {
159                    ALOGE("%s: Received a null native handle at handles[%d]",
160                            __FUNCTION__, i);
161                    return BAD_VALUE;
162                }
163                handles.push_back(handle);
164            }
165            // The native handle will be freed in
166            // BpCameraRecordingProxy::releaseRecordingFrameHandleBatch.
167            recordingFrameHandleCallbackTimestampBatch(timestamps, handles);
168            return NO_ERROR;
169        } break;
170        default:
171            return BBinder::onTransact(code, data, reply, flags);
172    }
173}
174
175// ----------------------------------------------------------------------------
176
177}; // namespace android
178
179