1 /*
2 * Copyright 2018, 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 "JMediaPlayer2Utils"
19
20 #include "JMediaPlayer2Utils.h"
21 #include <mediaplayer2/JavaVMHelper.h>
22
23 #include <media/stagefright/MediaDefs.h>
24 #include <media/stagefright/Utils.h>
25 #include <utils/Log.h>
26
27 #include "log/log.h"
28
29 namespace android {
30
31 static const int64_t kOffloadMinDurationSec = 60;
32
33 // static
isOffloadedAudioPlaybackSupported(const sp<MetaData> & meta,bool hasVideo,bool isStreaming,audio_stream_type_t streamType)34 bool JMediaPlayer2Utils::isOffloadedAudioPlaybackSupported(
35 const sp<MetaData>& meta, bool hasVideo, bool isStreaming, audio_stream_type_t streamType)
36 {
37 if (hasVideo || streamType != AUDIO_STREAM_MUSIC) {
38 return false;
39 }
40
41 audio_offload_info_t info = AUDIO_INFO_INITIALIZER;
42 if (OK != getAudioOffloadInfo(meta, hasVideo, isStreaming, streamType, &info)) {
43 return false;
44 }
45
46 if (info.duration_us < kOffloadMinDurationSec * 1000000) {
47 return false;
48 }
49
50 int32_t audioFormat = audioFormatFromNative(info.format);
51 int32_t channelMask = outChannelMaskFromNative(info.channel_mask);
52 if (audioFormat == ENCODING_INVALID || channelMask == CHANNEL_INVALID) {
53 return false;
54 }
55
56 JNIEnv* env = JavaVMHelper::getJNIEnv();
57 jclass jMP2UtilsCls = env->FindClass("android/media/MediaPlayer2Utils");
58 jmethodID jSetAudioOutputDeviceById = env->GetStaticMethodID(
59 jMP2UtilsCls, "isOffloadedAudioPlaybackSupported", "(III)Z");
60 jboolean result = env->CallStaticBooleanMethod(
61 jMP2UtilsCls, jSetAudioOutputDeviceById, audioFormat, info.sample_rate, channelMask);
62 return result;
63 }
64
65 } // namespace android
66