1 /* 2 * Copyright (c) 2023-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef FFMPEG_UTILS_H 17 #define FFMPEG_UTILS_H 18 19 #include <string> 20 #include "meta/media_types.h" 21 #include "meta/audio_types.h" 22 #include "meta/video_types.h" 23 #include "buffer/avbuffer.h" 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 #include "libavutil/rational.h" 28 #include "libavformat/avformat.h" 29 #include "libavcodec/avcodec.h" 30 #ifdef __cplusplus 31 }; 32 #endif 33 34 namespace OHOS { 35 namespace Media { 36 namespace Plugins { 37 namespace Ffmpeg { 38 const uint32_t MS_TO_SEC = 1000; 39 bool Mime2CodecId(const std::string &mime, AVCodecID &codecId); 40 bool Raw2CodecId(AudioSampleFormat sampleFormat, AVCodecID &codecId); 41 std::string AVStrError(int errnum); 42 int64_t ConvertTimeFromFFmpeg(int64_t pts, AVRational base); 43 int64_t ConvertTimeToFFmpeg(int64_t timestampNs, AVRational base); 44 int64_t ConvertTimeToFFmpegByUs(int64_t timestampUs, AVRational base); 45 bool StartWith(const char* name, const char* chars); 46 uint32_t ConvertFlagsFromFFmpeg(const AVPacket& pkt, bool memoryNotEnough); 47 int64_t CalculateTimeByFrameIndex(AVStream* avStream, int keyFrameIdx); 48 void ReplaceDelimiter(const std::string &delimiters, char newDelimiter, std::string &str); 49 50 std::vector<std::string> SplitString(const char* str, char delimiter); 51 std::vector<std::string> SplitString(const std::string& str, char delimiter); 52 53 std::pair<bool, AVColorPrimaries> ColorPrimary2AVColorPrimaries(ColorPrimary primary); 54 std::pair<bool, AVColorTransferCharacteristic> ColorTransfer2AVColorTransfer(TransferCharacteristic transfer); 55 std::pair<bool, AVColorSpace> ColorMatrix2AVColorSpace(MatrixCoefficient matrix); 56 57 std::vector<uint8_t> GenerateAACCodecConfig(int32_t profile, int32_t sampleRate, int32_t channels); 58 void SetDropTag(const AVPacket& pkt, std::shared_ptr<AVBuffer> sample, AVCodecID codecId); 59 int64_t AvTime2Us(int64_t hTime); 60 std::string hexEncode(const std::vector<uint8_t>& data); 61 62 struct FlacCodecConfig { 63 bool GenerateCodecConfig(const std::shared_ptr<Meta> &trackDesc); 64 void UpdateNewConfig(uint8_t *data, size_t size); 65 void UpdatePerFrame(uint8_t* data, size_t size); 66 void UpdateBitPerSample(uint8_t byte); 67 bool Update(); 68 uint64_t mTotalSample = 0; 69 uint16_t mBlockSize = 0; 70 bool mIsFirstDataFrame = {true}; 71 bool mIsUpdateExtraData = {false}; 72 uint32_t mMaxFrameSize = 0; 73 uint32_t mMinFrameSize = 0; 74 int32_t mSampleRate = 0; 75 int32_t mChannels = 0; 76 uint8_t mBitPerSample = 0; 77 std::vector<uint8_t> mCodecConfig; 78 }; 79 } // namespace Ffmpeg 80 } // namespace Plugins 81 } // namespace Media 82 } // namespace OHOS 83 #endif // FFMPEG_UTILS_H 84