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      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 
     24 namespace android {
     25 
     26 //--------------------------------------------------------------------------------------------------
     27 AudioToCbRenderer::AudioToCbRenderer(const AudioPlayback_Parameters* params) :
     28         AudioSfDecoder(params),
     29         mDecodeCbf(NULL),
     30         mDecodeUser(NULL)
     31 {
     32     SL_LOGD("AudioToCbRenderer::AudioToCbRenderer()");
     33 
     34 }
     35 
     36 
     37 AudioToCbRenderer::~AudioToCbRenderer() {
     38     SL_LOGD("AudioToCbRenderer::~AudioToCbRenderer()");
     39 
     40 }
     41 
     42 void AudioToCbRenderer::setDataPushListener(const data_push_cbf_t pushCbf, CAudioPlayer* pushUser) {
     43     mDecodeCbf = pushCbf;
     44     mDecodeUser = pushUser;
     45 }
     46 
     47 //--------------------------------------------------
     48 // Event handlers
     49 
     50 void 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, id()))->post();
     81     }
     82 
     83     mDecodeBuffer->release();
     84     mDecodeBuffer = NULL;
     85 
     86     updateOneShot();
     87 }
     88 
     89 
     90 //--------------------------------------------------
     91 // Audio output
     92 void AudioToCbRenderer::createAudioSink() {
     93     SL_LOGD("AudioToCbRenderer::createAudioSink()");
     94 }
     95 
     96 
     97 void AudioToCbRenderer::updateAudioSink() {
     98     SL_LOGD("AudioToCbRenderer::updateAudioSink()");
     99 }
    100 
    101 
    102 void AudioToCbRenderer::startAudioSink() {
    103     SL_LOGD("AudioToCbRenderer::startAudioSink()");
    104 }
    105 
    106 
    107 void AudioToCbRenderer::pauseAudioSink() {
    108     SL_LOGD("AudioToCbRenderer::pauseAudioSink()");
    109 }
    110 
    111 } // namespace android
    112