android_AudioToCbRenderer.cpp revision c0a40f3efef1706f861777ff68003fe344730055 
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#include "android/android_AudioToCbRenderer.h"
21
22#include <media/stagefright/foundation/ADebug.h>
23
24namespace android {
25
26//--------------------------------------------------------------------------------------------------
27AudioToCbRenderer::AudioToCbRenderer(AudioPlayback_Parameters* params) : AudioSfDecoder(params),
28        mDecodeCbf(NULL),
29        mDecodeUser(NULL)
30{
31    SL_LOGD("AudioToCbRenderer::AudioToCbRenderer()");
32
33}
34
35
36AudioToCbRenderer::~AudioToCbRenderer() {
37    SL_LOGD("AudioToCbRenderer::~AudioToCbRenderer()");
38
39}
40
41void AudioToCbRenderer::setDataPushListener(const data_push_cbf_t pushCbf, CAudioPlayer* pushUser) {
42    mDecodeCbf = pushCbf;
43    mDecodeUser = pushUser;
44}
45
46//--------------------------------------------------
47// Event handlers
48
49void AudioToCbRenderer::onRender() {
50    SL_LOGV("AudioToCbRenderer::onRender");
51
52    Mutex::Autolock _l(mBufferSourceLock);
53
54    if (NULL == mDecodeBuffer) {
55        // nothing to render, move along
56        //SL_LOGV("AudioToCbRenderer::onRender NULL buffer, exiting");
57        return;
58    }
59
60    if (mStateFlags & kFlagPlaying) {
61        if (NULL != mDecodeCbf) {
62            size_t full = mDecodeBuffer->range_length();
63            size_t consumed = 0;
64            size_t offset = 0;
65            while (offset < full) {
66                consumed = mDecodeCbf(
67                        (const uint8_t *)mDecodeBuffer->data()
68                                + offset + mDecodeBuffer->range_offset(),
69                        mDecodeBuffer->range_length() - offset,
70                        mDecodeUser);
71                offset += consumed;
72                //SL_LOGV("consumed=%u, offset=%u, full=%u", consumed, offset, full);
73                if (consumed == 0) {
74                    // decoded data is not being consumed, skip this buffer
75                    break;
76                }
77            }
78        }
79        (new AMessage(kWhatDecode, id()))->post();
80    }
81
82    mDecodeBuffer->release();
83    mDecodeBuffer = NULL;
84
85    updateOneShot();
86}
87
88
89//--------------------------------------------------
90// Audio output
91void AudioToCbRenderer::createAudioSink() {
92    SL_LOGD("AudioToCbRenderer::createAudioSink() sample rate = %d, nb channels = %d",
93            mSampleRateHz, mChannelCount);
94}
95
96
97void AudioToCbRenderer::updateAudioSink() {
98    SL_LOGD("AudioToCbRenderer::updateAudioSink()");
99}
100
101
102void AudioToCbRenderer::startAudioSink() {
103    SL_LOGD("AudioToCbRenderer::startAudioSink()");
104}
105
106
107void AudioToCbRenderer::pauseAudioSink() {
108    SL_LOGD("AudioToCbRenderer::pauseAudioSink()");
109}
110
111} // namespace android
112