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121 lines
4.5 KiB
121 lines
4.5 KiB
/*
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* Copyright 2015, 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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#ifndef _ANDROID_MEDIA_PLAYBACK_PARAMS_H_
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#define _ANDROID_MEDIA_PLAYBACK_PARAMS_H_
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#include <media/AudioResamplerPublic.h>
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namespace android {
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// This entire class is inline as it is used from both core and media
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struct PlaybackParams {
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AudioPlaybackRate audioRate;
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bool speedSet;
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bool pitchSet;
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bool audioFallbackModeSet;
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bool audioStretchModeSet;
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struct fields_t {
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jclass clazz;
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jmethodID constructID;
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jfieldID speed;
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jfieldID pitch;
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jfieldID audio_fallback_mode;
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jfieldID audio_stretch_mode;
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jfieldID set;
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jint set_speed;
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jint set_pitch;
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jint set_audio_fallback_mode;
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jint set_audio_stretch_mode;
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void init(JNIEnv *env) {
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jclass lclazz = env->FindClass("android/media/PlaybackParams");
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if (lclazz == NULL) {
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return;
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}
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clazz = (jclass)env->NewGlobalRef(lclazz);
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if (clazz == NULL) {
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return;
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}
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constructID = env->GetMethodID(clazz, "<init>", "()V");
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speed = env->GetFieldID(clazz, "mSpeed", "F");
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pitch = env->GetFieldID(clazz, "mPitch", "F");
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audio_fallback_mode = env->GetFieldID(clazz, "mAudioFallbackMode", "I");
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audio_stretch_mode = env->GetFieldID(clazz, "mAudioStretchMode", "I");
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set = env->GetFieldID(clazz, "mSet", "I");
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set_speed =
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env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "SET_SPEED", "I"));
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set_pitch =
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env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "SET_PITCH", "I"));
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set_audio_fallback_mode = env->GetStaticIntField(
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clazz, env->GetStaticFieldID(clazz, "SET_AUDIO_FALLBACK_MODE", "I"));
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set_audio_stretch_mode = env->GetStaticIntField(
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clazz, env->GetStaticFieldID(clazz, "SET_AUDIO_STRETCH_MODE", "I"));
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env->DeleteLocalRef(lclazz);
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}
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void exit(JNIEnv *env) {
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env->DeleteGlobalRef(clazz);
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clazz = NULL;
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}
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};
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void fillFromJobject(JNIEnv *env, const fields_t& fields, jobject params) {
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audioRate.mSpeed = env->GetFloatField(params, fields.speed);
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audioRate.mPitch = env->GetFloatField(params, fields.pitch);
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audioRate.mFallbackMode =
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(AudioTimestretchFallbackMode)env->GetIntField(params, fields.audio_fallback_mode);
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audioRate.mStretchMode =
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(AudioTimestretchStretchMode)env->GetIntField(params, fields.audio_stretch_mode);
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int set = env->GetIntField(params, fields.set);
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speedSet = set & fields.set_speed;
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pitchSet = set & fields.set_pitch;
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audioFallbackModeSet = set & fields.set_audio_fallback_mode;
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audioStretchModeSet = set & fields.set_audio_stretch_mode;
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}
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jobject asJobject(JNIEnv *env, const fields_t& fields) {
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jobject params = env->NewObject(fields.clazz, fields.constructID);
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if (params == NULL) {
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return NULL;
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}
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env->SetFloatField(params, fields.speed, (jfloat)audioRate.mSpeed);
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env->SetFloatField(params, fields.pitch, (jfloat)audioRate.mPitch);
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env->SetIntField(params, fields.audio_fallback_mode, (jint)audioRate.mFallbackMode);
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env->SetIntField(params, fields.audio_stretch_mode, (jint)audioRate.mStretchMode);
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env->SetIntField(
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params, fields.set,
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(speedSet ? fields.set_speed : 0)
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| (pitchSet ? fields.set_pitch : 0)
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| (audioFallbackModeSet ? fields.set_audio_fallback_mode : 0)
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| (audioStretchModeSet ? fields.set_audio_stretch_mode : 0));
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return params;
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}
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};
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} // namespace android
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#endif // _ANDROID_MEDIA_PLAYBACK_PARAMS_H_
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