1/* 2 * Copyright (C) 2009 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 UTILS_H_ 18 19#define UTILS_H_ 20 21#include <media/stagefright/foundation/AString.h> 22#include <stdint.h> 23#include <utils/Errors.h> 24#include <utils/RefBase.h> 25#include <system/audio.h> 26#include <media/MediaPlayerInterface.h> 27 28namespace android { 29 30#define FOURCC(c1, c2, c3, c4) \ 31 (c1 << 24 | c2 << 16 | c3 << 8 | c4) 32 33uint16_t U16_AT(const uint8_t *ptr); 34uint32_t U32_AT(const uint8_t *ptr); 35uint64_t U64_AT(const uint8_t *ptr); 36 37uint16_t U16LE_AT(const uint8_t *ptr); 38uint32_t U32LE_AT(const uint8_t *ptr); 39uint64_t U64LE_AT(const uint8_t *ptr); 40 41uint64_t ntoh64(uint64_t x); 42uint64_t hton64(uint64_t x); 43 44class MetaData; 45struct AMessage; 46status_t convertMetaDataToMessage( 47 const sp<MetaData> &meta, sp<AMessage> *format); 48void convertMessageToMetaData( 49 const sp<AMessage> &format, sp<MetaData> &meta); 50 51AString MakeUserAgent(); 52 53// Convert a MIME type to a AudioSystem::audio_format 54status_t mapMimeToAudioFormat(audio_format_t& format, const char* mime); 55 56// Convert a aac profile to a AudioSystem::audio_format 57void mapAACProfileToAudioFormat(audio_format_t& format, uint64_t eAacProfile); 58 59// Send information from MetaData to the HAL via AudioSink 60status_t sendMetaDataToHal(sp<MediaPlayerBase::AudioSink>& sink, const sp<MetaData>& meta); 61 62// Check whether the stream defined by meta can be offloaded to hardware 63bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo, 64 bool isStreaming, audio_stream_type_t streamType); 65 66AString uriDebugString(const AString &uri, bool incognito = false); 67 68struct HLSTime { 69 int32_t mSeq; 70 int64_t mTimeUs; 71 sp<AMessage> mMeta; 72 73 HLSTime(const sp<AMessage> &meta = NULL); 74 int64_t getSegmentTimeUs() const; 75}; 76 77bool operator <(const HLSTime &t0, const HLSTime &t1); 78 79// read and write various object to/from AMessage 80 81void writeToAMessage(sp<AMessage> msg, const AudioPlaybackRate &rate); 82void readFromAMessage(const sp<AMessage> &msg, AudioPlaybackRate *rate /* nonnull */); 83 84void writeToAMessage(sp<AMessage> msg, const AVSyncSettings &sync, float videoFpsHint); 85void readFromAMessage( 86 const sp<AMessage> &msg, AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */); 87 88} // namespace android 89 90#endif // UTILS_H_ 91