android_AudioToCbRenderer.cpp revision 52e35b2c9f25450452ab422c46737a7fb5b67380 
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(const AudioPlayback_Parameters* params) :
28        AudioSfDecoder(params),
29        mDecodeCbf(NULL),
30        mDecodeUser(NULL)
31{
32    SL_LOGD("AudioToCbRenderer::AudioToCbRenderer()");
33
34}
35
36
37AudioToCbRenderer::~AudioToCbRenderer() {
38    SL_LOGD("AudioToCbRenderer::~AudioToCbRenderer()");
39
40}
41
42void AudioToCbRenderer::setDataPushListener(const data_push_cbf_t pushCbf, CAudioPlayer* pushUser) {
43    mDecodeCbf = pushCbf;
44    mDecodeUser = pushUser;
45}
46
47//--------------------------------------------------
48// Event handlers
49
50void AudioToCbRenderer::onRender() {
51    SL_LOGV("AudioToCbRenderer::onRender");
52
53    Mutex::Autolock _l(mBufferSourceLock);
54
55    if (NULL == mDecodeBuffer) {
56        // nothing to render, move along
57        //SL_LOGV("AudioToCbRenderer::onRender NULL buffer, exiting");
58        return;
59    }
60
61    if (mStateFlags & kFlagPlaying) {
62        if (NULL != mDecodeCbf) {
63            size_t full = mDecodeBuffer->range_length();
64            size_t consumed = 0;
65            size_t offset = 0;
66            while (offset < full) {
67                consumed = mDecodeCbf(
68                        (const uint8_t *)mDecodeBuffer->data()
69                                + offset + mDecodeBuffer->range_offset(),
70                        mDecodeBuffer->range_length() - offset,
71                        mDecodeUser);
72                offset += consumed;
73                //SL_LOGV("consumed=%u, offset=%u, full=%u", consumed, offset, full);
74                if (consumed == 0) {
75                    // decoded data is not being consumed, skip this buffer
76                    break;
77                }
78            }
79        }
80        (new AMessage(kWhatDecode, this))->post();
81    }
82
83    mDecodeBuffer->release();
84    mDecodeBuffer = NULL;
85
86    updateOneShot();
87}
88
89
90//--------------------------------------------------
91// Audio output
92void AudioToCbRenderer::createAudioSink() {
93    SL_LOGD("AudioToCbRenderer::createAudioSink()");
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