1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* Copyright (C) 2015 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.
*/
#include "tunertvinput_jni.h"
#include <map>
#include "DvbManager.h"
#define LOG_TAG "tunertvinput_jni"
#include "logging.h"
//-------------------------------------------------------------------------------
// JNI native method implementation
//-------------------------------------------------------------------------------
#define TS_PACKET_SIZE 188
#define TS_PAYLOAD_SIZE (TS_PACKET_SIZE * 7) // Fit Ethernet MTU (1500)
#define READ_TIMEOUT_MS 100
static int sTotalBytesFetched = 0;
static std::map<jlong, DvbManager *> sDvbManagers;
/*
* Class: com_android_tv_tuner_TunerHal
* Method: nativeFinalize
* Signature: (J)V
*/
JNIEXPORT void JNICALL
Java_com_android_tv_tuner_TunerHal_nativeFinalize
(JNIEnv *, jobject, jlong deviceId) {
std::map<jlong, DvbManager *>::iterator it = sDvbManagers.find(deviceId);
if (it != sDvbManagers.end()) {
delete it->second;
sDvbManagers.erase(it);
}
}
/*
* Class: com_android_tv_tuner_TunerHal
* Method: nativeTune
* Signature: (JILjava/lang/String;)Z
*/
JNIEXPORT jboolean JNICALL
Java_com_android_tv_tuner_TunerHal_nativeTune
(JNIEnv *env, jobject thiz, jlong deviceId, jint frequency, jstring modulation, jint timeout_ms) {
std::map<jlong, DvbManager *>::iterator it = sDvbManagers.find(deviceId);
DvbManager *dvbManager;
if (it == sDvbManagers.end()) {
dvbManager = new DvbManager(env, thiz);
sDvbManagers.insert(std::pair<jlong, DvbManager *>(deviceId, dvbManager));
} else {
dvbManager = it->second;
}
int res = dvbManager->tune(env, thiz,
frequency, env->GetStringUTFChars(modulation, 0), timeout_ms);
return (res == 0);
}
/*
* Class: com_android_tv_tuner_TunerHal
* Method: nativeCloseAllPidFilters
* Signature: (J)V
*/
JNIEXPORT void JNICALL Java_com_android_tv_tuner_TunerHal_nativeCloseAllPidFilters
(JNIEnv *, jobject, jlong deviceId) {
std::map<jlong, DvbManager *>::iterator it = sDvbManagers.find(deviceId);
if (it != sDvbManagers.end()) {
it->second->closeAllDvbPidFilter();
}
}
/*
* Class: com_android_tv_tuner_TunerHal
* Method: nativeStopTune
* Signature: (J)V
*/
JNIEXPORT void JNICALL
Java_com_android_tv_tuner_TunerHal_nativeStopTune
(JNIEnv *, jobject, jlong deviceId) {
std::map<jlong, DvbManager *>::iterator it = sDvbManagers.find(deviceId);
if (it != sDvbManagers.end()) {
it->second->stopTune();
}
}
/*
* Class: com_android_tv_tuner_TunerHal
* Method: nativeAddPidFilter
* Signature: (JII)V
*/
JNIEXPORT void JNICALL
Java_com_android_tv_tuner_TunerHal_nativeAddPidFilter
(JNIEnv *env, jobject thiz, jlong deviceId, jint pid, jint filterType) {
std::map<jlong, DvbManager *>::iterator it = sDvbManagers.find(deviceId);
if (it != sDvbManagers.end()) {
it->second->startTsPidFilter(env, thiz, pid, filterType);
}
}
/*
* Class: com_android_tv_tuner_TunerHal
* Method: nativeWriteInBuffer
* Signature: (J[BI)I
*/
JNIEXPORT jint JNICALL
Java_com_android_tv_tuner_TunerHal_nativeWriteInBuffer
(JNIEnv *env, jobject thiz, jlong deviceId, jbyteArray javaBuffer, jint javaBufferSize) {
uint8_t tsBuffer[TS_PAYLOAD_SIZE];
std::map<jlong, DvbManager *>::iterator it = sDvbManagers.find(deviceId);
if (it == sDvbManagers.end()) {
return -1;
}
DvbManager *dvbManager = it->second;
// Always read multiple of TS_PACKET_SIZE
javaBufferSize = (javaBufferSize / TS_PACKET_SIZE) * TS_PACKET_SIZE;
int readBufferSize = (javaBufferSize < TS_PAYLOAD_SIZE) ? javaBufferSize : TS_PAYLOAD_SIZE;
int dataSize = dvbManager->readTsStream(env, thiz, tsBuffer, readBufferSize, READ_TIMEOUT_MS);
if (dataSize == 0) {
ALOGD("No data to read DVR");
return 0;
} else if (dataSize < 0) {
return -1;
}
sTotalBytesFetched += dataSize;
env->SetByteArrayRegion(javaBuffer, 0, dataSize, (jbyte *) tsBuffer);
return dataSize;
}
/*
* Class: com_android_tv_tuner_TunerHal
* Method: nativeSetHasPendingTune
* Signature: (JZ)V
*/
JNIEXPORT void JNICALL
Java_com_android_tv_tuner_TunerHal_nativeSetHasPendingTune
(JNIEnv *env, jobject thiz, jlong deviceId, jboolean hasPendingTune) {
std::map<jlong, DvbManager *>::iterator it = sDvbManagers.find(deviceId);
if (it != sDvbManagers.end()) {
it->second->setHasPendingTune(hasPendingTune);
}
}
|
