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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 #include <media/stagefright/MediaBuffer.h>
     24 
     25 namespace android {
     26 
     27 //--------------------------------------------------------------------------------------------------
     28 AudioToCbRenderer::AudioToCbRenderer(const AudioPlayback_Parameters* params) :
     29         AudioSfDecoder(params),
     30         mDecodeCbf(NULL),
     31         mDecodeUser(NULL)
     32 {
     33     SL_LOGD("AudioToCbRenderer::AudioToCbRenderer()");
     34 
     35 }
     36 
     37 
     38 AudioToCbRenderer::~AudioToCbRenderer() {
     39     SL_LOGD("AudioToCbRenderer::~AudioToCbRenderer()");
     40 
     41 }
     42 
     43 void AudioToCbRenderer::setDataPushListener(const data_push_cbf_t pushCbf, CAudioPlayer* pushUser) {
     44     mDecodeCbf = pushCbf;
     45     mDecodeUser = pushUser;
     46 }
     47 
     48 //--------------------------------------------------
     49 // Event handlers
     50 
     51 void AudioToCbRenderer::onRender() {
     52     SL_LOGV("AudioToCbRenderer::onRender");
     53 
     54     Mutex::Autolock _l(mBufferSourceLock);
     55 
     56     if (NULL == mDecodeBuffer) {
     57         // nothing to render, move along
     58         //SL_LOGV("AudioToCbRenderer::onRender NULL buffer, exiting");
     59         return;
     60     }
     61 
     62     if (mStateFlags & kFlagPlaying) {
     63         if (NULL != mDecodeCbf) {
     64             size_t full = mDecodeBuffer->range_length();
     65             size_t consumed = 0;
     66             size_t offset = 0;
     67             while (offset < full) {
     68                 consumed = mDecodeCbf(
     69                         (const uint8_t *)mDecodeBuffer->data()
     70                                 + offset + mDecodeBuffer->range_offset(),
     71                         mDecodeBuffer->range_length() - offset,
     72                         mDecodeUser);
     73                 offset += consumed;
     74                 //SL_LOGV("consumed=%u, offset=%u, full=%u", consumed, offset, full);
     75                 if (consumed == 0) {
     76                     // decoded data is not being consumed, skip this buffer
     77                     break;
     78                 }
     79             }
     80         }
     81         (new AMessage(kWhatDecode, this))->post();
     82     }
     83 
     84     mDecodeBuffer->release();
     85     mDecodeBuffer = NULL;
     86 
     87     updateOneShot();
     88 }
     89 
     90 
     91 //--------------------------------------------------
     92 // Audio output
     93 void AudioToCbRenderer::createAudioSink() {
     94     SL_LOGD("AudioToCbRenderer::createAudioSink()");
     95 }
     96 
     97 
     98 void AudioToCbRenderer::updateAudioSink() {
     99     SL_LOGD("AudioToCbRenderer::updateAudioSink()");
    100 }
    101 
    102 
    103 void AudioToCbRenderer::startAudioSink() {
    104     SL_LOGD("AudioToCbRenderer::startAudioSink()");
    105 }
    106 
    107 
    108 void AudioToCbRenderer::pauseAudioSink() {
    109     SL_LOGD("AudioToCbRenderer::pauseAudioSink()");
    110 }
    111 
    112 } // namespace android
    113