1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 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 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 #ifndef MP3_TIMESTAMP_H_INCLUDED 19 #define MP3_TIMESTAMP_H_INCLUDED 20 21 #ifndef OSCL_BASE_H_INCLUDED 22 #include "oscl_base.h" 23 #endif 24 25 #ifndef OMX_Component_h 26 #include "OMX_Component.h" 27 #endif 28 29 30 31 #define DEFAULT_SAMPLING_FREQ_MP3 44100 32 #define DEFAULT_SAMPLES_PER_FRAME_MP3 1152 33 34 class Mp3TimeStampCalc 35 { 36 public: 37 Mp3TimeStampCalc()38 Mp3TimeStampCalc() 39 { 40 iSamplingFreq = DEFAULT_SAMPLING_FREQ_MP3; 41 iCurrentTs = 0; 42 iCurrentSamples = 0; 43 iSamplesPerFrame = DEFAULT_SAMPLES_PER_FRAME_MP3; 44 }; 45 46 void SetParameters(uint32 aFreq, uint32 aSamples); 47 48 void SetFromInputTimestamp(OMX_TICKS aValue); 49 50 void UpdateTimestamp(uint32 aValue); 51 52 OMX_TICKS GetConvertedTs(); 53 54 OMX_TICKS GetCurrentTimestamp(); 55 56 OMX_TICKS GetFrameDuration(); 57 58 59 private: 60 uint32 iSamplingFreq; 61 OMX_TICKS iCurrentTs; 62 uint32 iCurrentSamples; 63 uint32 iSamplesPerFrame; 64 }; 65 66 #endif //#ifndef MP3_TIMESTAMP_H_INCLUDED 67