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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(AudioPlayback_Parameters* params) : AudioSfDecoder(params),
     28         mDecodeCbf(NULL),
     29         mDecodeUser(NULL)
     30 {
     31     SL_LOGD("AudioToCbRenderer::AudioToCbRenderer()");
     32 
     33 }
     34 
     35 
     36 AudioToCbRenderer::~AudioToCbRenderer() {
     37     SL_LOGD("AudioToCbRenderer::~AudioToCbRenderer()");
     38 
     39 }
     40 
     41 void AudioToCbRenderer::setDataPushListener(const data_push_cbf_t pushCbf, CAudioPlayer* pushUser) {
     42     mDecodeCbf = pushCbf;
     43     mDecodeUser = pushUser;
     44 }
     45 
     46 //--------------------------------------------------
     47 // Event handlers
     48 
     49 void 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
     91 void AudioToCbRenderer::createAudioSink() {
     92     SL_LOGD("AudioToCbRenderer::createAudioSink()");
     93 }
     94 
     95 
     96 void AudioToCbRenderer::updateAudioSink() {
     97     SL_LOGD("AudioToCbRenderer::updateAudioSink()");
     98 }
     99 
    100 
    101 void AudioToCbRenderer::startAudioSink() {
    102     SL_LOGD("AudioToCbRenderer::startAudioSink()");
    103 }
    104 
    105 
    106 void AudioToCbRenderer::pauseAudioSink() {
    107     SL_LOGD("AudioToCbRenderer::pauseAudioSink()");
    108 }
    109 
    110 } // namespace android
    111