android_media_SyncParams.cpp revision 2d61e2b97c92ac2de80ebb3782b728ae5cdf5306 
1/*
2 * Copyright 2015, 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#include "android_media_SyncParams.h"
18
19#include "JNIHelp.h"
20
21namespace android {
22
23void SyncParams::fields_t::init(JNIEnv *env) {
24    jclass lclazz = env->FindClass("android/media/SyncParams");
25    if (lclazz == NULL) {
26        return;
27    }
28
29    clazz = (jclass)env->NewGlobalRef(lclazz);
30    if (clazz == NULL) {
31        return;
32    }
33
34    constructID = env->GetMethodID(clazz, "<init>", "()V");
35
36    sync_source = env->GetFieldID(clazz, "mSyncSource", "I");
37    audio_adjust_mode = env->GetFieldID(clazz, "mAudioAdjustMode", "I");
38    tolerance = env->GetFieldID(clazz, "mTolerance", "F");
39    frame_rate = env->GetFieldID(clazz, "mFrameRate", "F");
40    set = env->GetFieldID(clazz, "mSet", "I");
41
42    set_sync_source =
43        env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "SET_SYNC_SOURCE", "I"));
44    set_audio_adjust_mode = env->GetStaticIntField(
45            clazz, env->GetStaticFieldID(clazz, "SET_AUDIO_ADJUST_MODE", "I"));
46    set_tolerance =
47        env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "SET_TOLERANCE", "I"));
48    set_frame_rate =
49        env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "SET_FRAME_RATE", "I"));
50
51    env->DeleteLocalRef(lclazz);
52}
53
54void SyncParams::fields_t::exit(JNIEnv *env) {
55    env->DeleteGlobalRef(clazz);
56    clazz = NULL;
57}
58
59void SyncParams::fillFromJobject(JNIEnv *env, const fields_t& fields, jobject params) {
60    sync.mSource = (AVSyncSource)env->GetIntField(params, fields.sync_source);
61    sync.mAudioAdjustMode = (AVSyncAudioAdjustMode)env->GetIntField(params, fields.audio_adjust_mode);
62    sync.mTolerance = env->GetFloatField(params, fields.tolerance);
63    frameRate = env->GetFloatField(params, fields.frame_rate);
64    int set = env->GetIntField(params, fields.set);
65
66    syncSourceSet = set & fields.set_sync_source;
67    audioAdjustModeSet = set & fields.set_audio_adjust_mode;
68    toleranceSet = set & fields.set_tolerance;
69    frameRateSet = set & fields.set_frame_rate;
70}
71
72jobject SyncParams::asJobject(JNIEnv *env, const fields_t& fields) {
73    jobject params = env->NewObject(fields.clazz, fields.constructID);
74    if (params == NULL) {
75        return NULL;
76    }
77    env->SetIntField(params, fields.sync_source, (jint)sync.mSource);
78    env->SetIntField(params, fields.audio_adjust_mode, (jint)sync.mAudioAdjustMode);
79    env->SetFloatField(params, fields.tolerance, (jfloat)sync.mTolerance);
80    env->SetFloatField(params, fields.frame_rate, (jfloat)frameRate);
81    env->SetIntField(
82            params, fields.set,
83            (syncSourceSet ? fields.set_sync_source : 0)
84                    | (audioAdjustModeSet ? fields.set_audio_adjust_mode : 0)
85                    | (toleranceSet ? fields.set_tolerance : 0)
86                    | (frameRateSet ? fields.set_frame_rate : 0));
87
88    return params;
89}
90
91}  // namespace android
92