android_AudioToCbRenderer.cpp revision 13837cf3f7be0eb8b1a9552bd99a89f98c987720 
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 USE_LOG SLAndroidLogLevel_Verbose
18
19#include "sles_allinclusive.h"
20
21namespace android {
22
23//--------------------------------------------------------------------------------------------------
24AudioToCbRenderer::AudioToCbRenderer(AudioPlayback_Parameters* params) : AudioSfDecoder(params),
25        mDecodeCbf(NULL),
26        mDecodeUser(NULL)
27{
28    SL_LOGI("AudioToCbRenderer::AudioToCbRenderer()");
29
30}
31
32
33AudioToCbRenderer::~AudioToCbRenderer() {
34    SL_LOGI("AudioToCbRenderer::~AudioToCbRenderer()");
35
36}
37
38void AudioToCbRenderer::setDataPushListener(const data_push_cbf_t pushCbf, void* pushUser) {
39    mDecodeCbf = pushCbf;
40    mDecodeUser = pushUser;
41}
42
43//--------------------------------------------------
44// Event handlers
45void AudioToCbRenderer::onPrepare() {
46    SL_LOGI("AudioToCbRenderer::onPrepare()");
47    AudioSfDecoder::onPrepare();
48    SL_LOGI("AudioToCbRenderer::onPrepare() done, mStateFlags=0x%x", mStateFlags);
49}
50
51
52void AudioToCbRenderer::onRender() {
53    SL_LOGV("AudioToCbRenderer::onRender");
54
55    Mutex::Autolock _l(mDecodeBufferLock);
56
57    if (NULL == mDecodeBuffer) {
58        // nothing to render, move along
59        //SL_LOGV("AudioToCbRenderer::onRender NULL buffer, exiting");
60        return;
61    }
62
63    if (mStateFlags & kFlagPlaying) {
64        if (NULL != mDecodeCbf) {
65            size_t full = mDecodeBuffer->range_length();
66            size_t consumed = 0;
67            size_t offset = 0;
68            while (offset < full) {
69                consumed = mDecodeCbf(
70                        (const uint8_t *)mDecodeBuffer->data()
71                                + offset + mDecodeBuffer->range_offset(),
72                        mDecodeBuffer->range_length() - offset,
73                        mDecodeUser);
74                offset += consumed;
75                //SL_LOGV("consumed=%lu, offset=%lu, full=%lu", consumed, offset, full);
76                if (consumed == 0) {
77                    // decoded data is not being consumed, skip this buffer
78                    break;
79                }
80            }
81        }
82        (new AMessage(kWhatDecode, id()))->post();
83    }
84
85    mDecodeBuffer->release();
86    mDecodeBuffer = NULL;
87}
88
89
90//--------------------------------------------------
91// Audio output
92void AudioToCbRenderer::createAudioSink() {
93    SL_LOGI("AudioToCbRenderer::createAudioSink()");
94    SL_LOGV("sample rate = %d nb channels = %d", mSampleRateHz, mNumChannels);
95}
96
97
98void AudioToCbRenderer::updateAudioSink() {
99    SL_LOGI("AudioToCbRenderer::updateAudioSink()");
100    if (mAudioSource != 0) {
101        sp<MetaData> meta = mAudioSource->getFormat();
102
103        SL_LOGV("old sample rate = %d", mSampleRateHz);
104        CHECK(meta->findInt32(kKeyChannelCount, &mNumChannels));
105        CHECK(meta->findInt32(kKeySampleRate, &mSampleRateHz));
106        SL_LOGV("new sample rate = %d", mSampleRateHz);
107
108    }
109}
110
111
112void AudioToCbRenderer::startAudioSink() {
113    SL_LOGI("AudioToCbRenderer::startAudioSink()");
114}
115
116
117void AudioToCbRenderer::pauseAudioSink() {
118    SL_LOGI("AudioToCbRenderer::pauseAudioSink()");
119}
120
121} // namespace android
122