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 #ifndef __DECODER_PUMP_H__ 18 #define __DECODER_PUMP_H__ 19 20 #include <pthread.h> 21 22 #include <common_time/cc_helper.h> 23 #include <media/stagefright/MediaSource.h> 24 #include <utils/LinearTransform.h> 25 #include <utils/List.h> 26 #include <utils/threads.h> 27 28 namespace android { 29 30 class MetaData; 31 class OMXClient; 32 class TimedAudioTrack; 33 34 class AAH_DecoderPump : public MediaSource { 35 public: 36 explicit AAH_DecoderPump(OMXClient& omx); 37 status_t initCheck(); 38 39 status_t queueForDecode(MediaBuffer* buf); 40 41 status_t init(const sp<MetaData>& params); 42 status_t shutdown(); 43 44 void setRenderTSTransform(const LinearTransform& trans); 45 void setRenderVolume(uint8_t volume); 46 bool isAboutToUnderflow(int64_t threshold); 47 bool getStatus() const { return thread_status_; } 48 49 // MediaSource methods 50 virtual status_t start(MetaData *params) { return OK; } 51 virtual sp<MetaData> getFormat() { return format_; } 52 virtual status_t stop() { return OK; } 53 virtual status_t read(MediaBuffer **buffer, 54 const ReadOptions *options); 55 56 protected: 57 virtual ~AAH_DecoderPump(); 58 59 private: 60 class ThreadWrapper : public Thread { 61 public: 62 friend class AAH_DecoderPump; 63 explicit ThreadWrapper(AAH_DecoderPump* owner); 64 65 private: 66 virtual bool threadLoop(); 67 AAH_DecoderPump* owner_; 68 69 DISALLOW_EVIL_CONSTRUCTORS(ThreadWrapper); 70 }; 71 72 void* workThread(); 73 virtual status_t shutdown_l(); 74 void queueToRenderer(MediaBuffer* decoded_sample); 75 void stopAndCleanupRenderer(); 76 77 sp<MetaData> format_; 78 int32_t format_channels_; // channel count, not channel mask 79 int32_t format_sample_rate_; 80 81 sp<MediaSource> decoder_; 82 OMXClient& omx_; 83 Mutex init_lock_; 84 85 sp<ThreadWrapper> thread_; 86 Condition thread_cond_; 87 Mutex thread_lock_; 88 status_t thread_status_; 89 90 Mutex render_lock_; 91 TimedAudioTrack* renderer_; 92 bool last_queued_pts_valid_; 93 int64_t last_queued_pts_; 94 bool last_ts_transform_valid_; 95 LinearTransform last_ts_transform_; 96 uint8_t last_volume_; 97 CCHelper cc_helper_; 98 99 // protected by the thread_lock_ 100 typedef List<MediaBuffer*> MBQueue; 101 MBQueue in_queue_; 102 103 DISALLOW_EVIL_CONSTRUCTORS(AAH_DecoderPump); 104 }; 105 106 } // namespace android 107 #endif // __DECODER_PUMP_H__ 108
