├── .gitignore ├── LICENSE ├── Makefile ├── README.MD ├── cmd └── hlsdl │ └── main.go ├── decrypt.go ├── example ├── hlsdl.gif └── main.go ├── go.mod ├── go.sum ├── hlsdl.go ├── hlsdl_test.go ├── parser.go ├── parser_test.go ├── puller.go ├── recorder.go └── util.go /.gitignore: -------------------------------------------------------------------------------- 1 | /example/download 2 | /bin 3 | /download 4 | /.idea 5 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | build_osx: 2 | env GOOS=darwin GOARCH=amd64 go build -o ./bin/hlsdl_osx ./cmd/hlsdl 3 | @md5 ./bin/hlsdl_osx 4 | 5 | build_linux: 6 | env GOOS=linux GOARCH=amd64 go build -o ./bin/hlsdl_linux ./cmd/hlsdl 7 | @md5 ./bin/hlsdl_linux 8 | 9 | build_windows: 10 | env GOOS=windows GOARCH=amd64 go build -o ./bin/hlsdl_windows.exe ./cmd/hlsdl 11 | @md5 ./bin/hlsdl_windows.exe 12 | 13 | build: build_osx build_linux build_windows -------------------------------------------------------------------------------- /README.MD: -------------------------------------------------------------------------------- 1 | # HLS downloader 2 | This is a library to support downloading a m3u8 file. All TS segments will be downloaded into a folder and then joined into a single TS file. The default file name is `video.ts` 3 | 4 | 5 | ### Features: 6 | * Concurrent download segments with multiple http connections 7 | * Decrypt HLS-encoded segments 8 | * Auto-retry download 9 | * Display downloading progress bar 10 | * Record a live stream video 11 | 12 | 13 | ### Todo: 14 | * Allow adding http headers 15 | 16 | ### How to integrate this library into your code 17 | 18 | Get the library 19 | ``` 20 | go get github.com/canhlinh/hlsdl 21 | ``` 22 | then import it to your code. 23 | ``` 24 | import "github.com/canhlinh/hlsdl" 25 | ``` 26 | 27 | Sample: 28 | 29 | ```go 30 | package main 31 | 32 | import ( 33 | "fmt" 34 | 35 | "github.com/canhlinh/hlsdl" 36 | ) 37 | 38 | func main() { 39 | hlsDL := hlsdl.New("https://bitdash-a.akamaihd.net/content/sintel/hls/video/1500kbit.m3u8", nil, "download", 64, true, "") 40 | 41 | filepath, err := hlsDL.Download() 42 | if err != nil { 43 | panic(err) 44 | } 45 | 46 | fmt.Println(filepath) 47 | } 48 | 49 | ``` 50 | 51 | ### How to build a console application 52 | 53 | Build for linux 54 | ``` 55 | make build-linux 56 | ``` 57 | 58 | Build for windows 59 | ``` 60 | make build-windows 61 | ``` 62 | 63 | Run the application 64 | 65 | ``` 66 | ./bin/hlsdl --help 67 | ``` 68 | 69 | ``` 70 | ./bin/hlsdl -u https://bitdash-a.akamaihd.net/content/sintel/hls/video/1500kbit.m3u8 -d download -w 10 71 | ``` 72 | 73 | ![example](example/hlsdl.gif) 74 | 75 | Record a live stream video 76 | 77 | ``` 78 | ./bin/hlsdl --url "http://cdn1.live-tv.od.ua:8081/bbb/bbbtv-abr/bbb/bbbtv-720p/chunks.m3u8?nimblesessionid=62115268" --record true 79 | ``` 80 | 81 | ## Get prebuild here https://github.com/canhlinh/hlsdl/releases * 82 | -------------------------------------------------------------------------------- /cmd/hlsdl/main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "log" 5 | "os" 6 | "strings" 7 | 8 | "github.com/canhlinh/hlsdl" 9 | "github.com/spf13/cobra" 10 | ) 11 | 12 | var cmd = &cobra.Command{ 13 | Use: "hlsdl", 14 | RunE: cmdF, 15 | SilenceUsage: true, 16 | } 17 | 18 | func main() { 19 | cmd.Flags().StringP("url", "u", "", "The manifest (m3u8) url") 20 | cmd.Flags().StringArrayP("headers", "H", []string{}, "The extra headers for m3u8 url") 21 | cmd.Flags().StringP("output", "o", "", "Output file name") 22 | cmd.Flags().StringP("dir", "d", "./download", "The directory where the file will be stored") 23 | cmd.Flags().BoolP("record", "r", false, "Indicate whether the m3u8 is a live stream video and you want to record it") 24 | cmd.Flags().IntP("workers", "w", 2, "Number of workers to execute concurrent operations") 25 | cmd.SetArgs(os.Args[1:]) 26 | 27 | if err := cmd.Execute(); err != nil { 28 | os.Exit(1) 29 | } 30 | } 31 | 32 | func cmdF(command *cobra.Command, args []string) error { 33 | var ( 34 | headers = map[string]string{} 35 | ) 36 | m3u8URL, err := command.Flags().GetString("url") 37 | if err != nil { 38 | return err 39 | } 40 | headerArr, err := command.Flags().GetStringArray("headers") 41 | if err != nil { 42 | return err 43 | } 44 | for _, header := range headerArr { 45 | h := strings.SplitN(header, ":", 2) 46 | if len(h) == 2 { 47 | headers[strings.TrimSpace(h[0])] = strings.TrimSpace(h[1]) 48 | } 49 | } 50 | dir, err := command.Flags().GetString("dir") 51 | if err != nil { 52 | return err 53 | } 54 | output, err := command.Flags().GetString("output") 55 | if err != nil { 56 | return err 57 | } 58 | workers, err := command.Flags().GetInt("workers") 59 | if err != nil { 60 | return err 61 | } 62 | if record, err := command.Flags().GetBool("record"); err != nil { 63 | return err 64 | } else if record { 65 | return recordLiveStream(m3u8URL, headers, dir, output) 66 | } 67 | return downloadVodMovie(m3u8URL, headers, dir, output, workers) 68 | } 69 | 70 | func downloadVodMovie(url string, headers map[string]string, dir string, fileName string, workers int) error { 71 | hlsDL := hlsdl.New(url, headers, dir, fileName, workers, true) 72 | filepath, err := hlsDL.Download() 73 | if err != nil { 74 | return err 75 | } 76 | log.Println("Downloaded file to " + filepath) 77 | return nil 78 | } 79 | 80 | func recordLiveStream(url string, headers map[string]string, dir, filename string) error { 81 | recorder := hlsdl.NewRecorder(url, headers, dir, filename) 82 | recordedFile, err := recorder.Start() 83 | if err != nil { 84 | _ = os.RemoveAll(recordedFile) 85 | return err 86 | } 87 | log.Println("Recorded file at ", recordedFile) 88 | return nil 89 | } 90 | -------------------------------------------------------------------------------- /decrypt.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "bytes" 5 | "crypto/aes" 6 | "crypto/cipher" 7 | "encoding/binary" 8 | "fmt" 9 | "io" 10 | "os" 11 | ) 12 | 13 | const ( 14 | syncByte = uint8(71) //0x47 15 | ) 16 | 17 | func decryptAES128(crypted, key, iv []byte) ([]byte, error) { 18 | block, err := aes.NewCipher(key) 19 | if err != nil { 20 | return nil, err 21 | } 22 | blockSize := block.BlockSize() 23 | blockMode := cipher.NewCBCDecrypter(block, iv[:blockSize]) 24 | origData := make([]byte, len(crypted)) 25 | blockMode.CryptBlocks(origData, crypted) 26 | origData = pkcs5UnPadding(origData) 27 | return origData, nil 28 | } 29 | 30 | func pkcs5Padding(cipherText []byte, blockSize int) []byte { 31 | padding := blockSize - len(cipherText)%blockSize 32 | padText := bytes.Repeat([]byte{byte(padding)}, padding) 33 | return append(cipherText, padText...) 34 | } 35 | 36 | func pkcs5UnPadding(origData []byte) []byte { 37 | length := len(origData) 38 | unPadding := int(origData[length-1]) 39 | return origData[:(length - unPadding)] 40 | } 41 | func defaultIV(seqID uint64) []byte { 42 | buf := make([]byte, 16) 43 | binary.BigEndian.PutUint64(buf[8:], seqID) 44 | return buf 45 | } 46 | 47 | func decryptAES128Stream(filePath string, w io.Writer, key, iv []byte) error { 48 | file, err := os.Open(filePath) 49 | if err != nil { 50 | return err 51 | } 52 | defer file.Close() 53 | 54 | block, err := aes.NewCipher(key) 55 | if err != nil { 56 | return fmt.Errorf("failed to create AES cipher: %w", err) 57 | } 58 | 59 | blockSize := block.BlockSize() 60 | if len(iv) < blockSize { 61 | return fmt.Errorf("IV length must be at least %d bytes", blockSize) 62 | } 63 | 64 | // Create a CBC decrypter 65 | blockMode := cipher.NewCBCDecrypter(block, iv[:blockSize]) 66 | 67 | // Create buffers for processing blocks 68 | buffer := make([]byte, blockSize) 69 | decrypted := make([]byte, blockSize) 70 | 71 | // Read and decrypt each block 72 | for { 73 | n, err := file.Read(buffer) 74 | if err != nil && err != io.EOF { 75 | return fmt.Errorf("failed to read encrypted data: %w", err) 76 | } 77 | if n == 0 { 78 | break 79 | } 80 | 81 | if n < blockSize { 82 | return fmt.Errorf("encrypted data size is not a multiple of block size") 83 | } 84 | 85 | // Decrypt the block 86 | blockMode.CryptBlocks(decrypted, buffer) 87 | 88 | // Write the decrypted data 89 | if _, err := w.Write(decrypted); err != nil { 90 | return fmt.Errorf("failed to write decrypted data: %w", err) 91 | } 92 | } 93 | 94 | return nil 95 | } 96 | 97 | func decodeStream(filePath string, w io.Writer) error { 98 | file, err := os.Open(filePath) 99 | if err != nil { 100 | return err 101 | } 102 | defer file.Close() 103 | 104 | if _, err := io.Copy(w, file); err != nil { 105 | return fmt.Errorf("failed to copy data: %w", err) 106 | } 107 | return nil 108 | } 109 | -------------------------------------------------------------------------------- /example/hlsdl.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/canhlinh/hlsdl/ba4b1a75ea457838d10306f51b5eca7405eff127/example/hlsdl.gif -------------------------------------------------------------------------------- /example/main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | 6 | "github.com/canhlinh/hlsdl" 7 | ) 8 | 9 | func main() { 10 | hlsDL := hlsdl.New("https://bitdash-a.akamaihd.net/content/sintel/hls/video/1500kbit.m3u8", nil, "download", "", 64, true) 11 | 12 | filepath, err := hlsDL.Download() 13 | if err != nil { 14 | panic(err) 15 | } 16 | 17 | fmt.Println(filepath) 18 | } 19 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/canhlinh/hlsdl 2 | 3 | require ( 4 | github.com/fatih/color v1.7.0 // indirect 5 | github.com/go-resty/resty/v2 v2.11.0 6 | github.com/grafov/m3u8 v0.12.0 7 | github.com/mattn/go-colorable v0.1.4 // indirect 8 | github.com/mattn/go-runewidth v0.0.15 // indirect 9 | github.com/rivo/uniseg v0.4.4 // indirect 10 | github.com/spf13/cobra v0.0.5 11 | golang.org/x/net v0.20.0 // indirect 12 | gopkg.in/cheggaaa/pb.v1 v1.0.28 13 | ) 14 | 15 | go 1.13 16 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 2 | github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8= 3 | github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE= 4 | github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk= 5 | github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= 6 | github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE= 7 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 8 | github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys= 9 | github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4= 10 | github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= 11 | github.com/go-resty/resty/v2 v2.11.0 h1:i7jMfNOJYMp69lq7qozJP+bjgzfAzeOhuGlyDrqxT/8= 12 | github.com/go-resty/resty/v2 v2.11.0/go.mod h1:iiP/OpA0CkcL3IGt1O0+/SIItFUbkkyw5BGXiVdTu+A= 13 | github.com/grafov/m3u8 v0.12.0 h1:T6iTwTsSEtMcwkayef+FJO8kj+Sglr4Lh81Zj8Ked/4= 14 | github.com/grafov/m3u8 v0.12.0/go.mod h1:nqzOkfBiZJENr52zTVd/Dcl03yzphIMbJqkXGu+u080= 15 | github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ= 16 | github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM= 17 | github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8= 18 | github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ= 19 | github.com/mattn/go-colorable v0.1.4 h1:snbPLB8fVfU9iwbbo30TPtbLRzwWu6aJS6Xh4eaaviA= 20 | github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE= 21 | github.com/mattn/go-isatty v0.0.8 h1:HLtExJ+uU2HOZ+wI0Tt5DtUDrx8yhUqDcp7fYERX4CE= 22 | github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= 23 | github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U= 24 | github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w= 25 | github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0= 26 | github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y= 27 | github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic= 28 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 29 | github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc= 30 | github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis= 31 | github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88= 32 | github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g= 33 | github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ= 34 | github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE= 35 | github.com/spf13/cobra v0.0.5 h1:f0B+LkLX6DtmRH1isoNA9VTtNUK9K8xYd28JNNfOv/s= 36 | github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU= 37 | github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo= 38 | github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg= 39 | github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4= 40 | github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s= 41 | github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= 42 | github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0= 43 | github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q= 44 | github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= 45 | golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= 46 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 47 | golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= 48 | golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4= 49 | golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg= 50 | golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= 51 | golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= 52 | golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 53 | golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= 54 | golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= 55 | golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= 56 | golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg= 57 | golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE= 58 | golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo= 59 | golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY= 60 | golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 61 | golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 62 | golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 63 | golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 64 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 65 | golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 66 | golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 67 | golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 68 | golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod 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v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U= 80 | golang.org/x/term v0.16.0/go.mod h1:yn7UURbUtPyrVJPGPq404EukNFxcm/foM+bV/bfcDsY= 81 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 82 | golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= 83 | golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= 84 | golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= 85 | golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= 86 | golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE= 87 | golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= 88 | golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4= 89 | golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= 90 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 91 | golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= 92 | golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= 93 | golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= 94 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 95 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 96 | gopkg.in/cheggaaa/pb.v1 v1.0.28 h1:n1tBJnnK2r7g9OW2btFH91V92STTUevLXYFb8gy9EMk= 97 | gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw= 98 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 99 | -------------------------------------------------------------------------------- /hlsdl.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "errors" 5 | "fmt" 6 | "log" 7 | "net/http" 8 | "os" 9 | "path/filepath" 10 | "runtime" 11 | "sort" 12 | "strings" 13 | "sync" 14 | "sync/atomic" 15 | "time" 16 | 17 | "github.com/go-resty/resty/v2" 18 | "github.com/grafov/m3u8" 19 | "gopkg.in/cheggaaa/pb.v1" 20 | ) 21 | 22 | func init() { 23 | runtime.GOMAXPROCS(runtime.NumCPU()) 24 | } 25 | 26 | // HlsDl present a HLS downloader 27 | type HlsDl struct { 28 | client *resty.Client 29 | headers map[string]string 30 | dir string 31 | hlsURL string 32 | workers int 33 | bar *pb.ProgressBar 34 | enableBar bool 35 | filename string 36 | startTime int64 37 | segTotal int64 38 | segCurrent int64 39 | } 40 | 41 | type Segment struct { 42 | *m3u8.MediaSegment 43 | Path string 44 | } 45 | 46 | type DownloadResult struct { 47 | Err error 48 | SeqId uint64 49 | } 50 | 51 | func New(hlsURL string, headers map[string]string, dir, filename string, workers int, enableBar bool) *HlsDl { 52 | if filename == "" { 53 | filename = getFilename() 54 | } 55 | hlsdl := &HlsDl{ 56 | hlsURL: hlsURL, 57 | dir: dir, 58 | client: resty.New(), 59 | workers: workers, 60 | enableBar: enableBar, 61 | headers: headers, 62 | filename: filename, 63 | startTime: time.Now().UnixMilli(), 64 | } 65 | 66 | return hlsdl 67 | } 68 | 69 | func wait(wg *sync.WaitGroup) chan bool { 70 | c := make(chan bool, 1) 71 | go func() { 72 | wg.Wait() 73 | c <- true 74 | }() 75 | return c 76 | } 77 | 78 | func (hlsDl *HlsDl) downloadSegment(segment *Segment) error { 79 | hlsDl.client.SetRetryCount(5).SetRetryWaitTime(time.Second) 80 | resp, err := hlsDl.client.R().SetHeaders(hlsDl.headers).SetOutput(segment.Path).Get(segment.URI) 81 | if err != nil { 82 | return err 83 | } 84 | if resp.StatusCode() != http.StatusOK { 85 | return errors.New(resp.Status()) 86 | } 87 | return nil 88 | } 89 | 90 | func (hlsDl *HlsDl) downloadSegments(segmentsDir string, segments []*Segment) error { 91 | wg := &sync.WaitGroup{} 92 | wg.Add(hlsDl.workers) 93 | finishedChan := wait(wg) 94 | quitChan := make(chan bool) 95 | segmentChan := make(chan *Segment) 96 | downloadResultChan := make(chan *DownloadResult, hlsDl.workers) 97 | for i := 0; i < hlsDl.workers; i++ { 98 | go func() { 99 | defer wg.Done() 100 | for segment := range segmentChan { 101 | tried := 0 102 | DOWNLOAD: 103 | tried++ 104 | select { 105 | case <-quitChan: 106 | return 107 | default: 108 | } 109 | if err := hlsDl.downloadSegment(segment); err != nil { 110 | if strings.Contains(err.Error(), "connection reset by peer") && tried < 3 { 111 | time.Sleep(time.Second) 112 | log.Println("Retry download segment ", segment.SeqId) 113 | goto DOWNLOAD 114 | } 115 | downloadResultChan <- &DownloadResult{Err: err, SeqId: segment.SeqId} 116 | return 117 | } 118 | downloadResultChan <- &DownloadResult{SeqId: segment.SeqId} 119 | } 120 | }() 121 | } 122 | 123 | go func() { 124 | defer close(segmentChan) 125 | for _, segment := range segments { 126 | segName := fmt.Sprintf("Seg%d.ts", segment.SeqId) 127 | segment.Path = filepath.Join(segmentsDir, segName) 128 | select { 129 | case segmentChan <- segment: 130 | case <-quitChan: 131 | return 132 | } 133 | } 134 | }() 135 | hlsDl.segTotal = int64(len(segments)) 136 | if hlsDl.enableBar { 137 | hlsDl.bar = pb.New(len(segments)).SetMaxWidth(100).Prefix("Downloading...") 138 | hlsDl.bar.ShowElapsedTime = true 139 | hlsDl.bar.Start() 140 | } 141 | 142 | defer func() { 143 | if hlsDl.enableBar { 144 | hlsDl.bar.Finish() 145 | } 146 | }() 147 | 148 | for { 149 | select { 150 | case <-finishedChan: 151 | return nil 152 | case result := <-downloadResultChan: 153 | if result.Err != nil { 154 | close(quitChan) 155 | return result.Err 156 | } 157 | if hlsDl.enableBar { 158 | hlsDl.bar.Increment() 159 | } else { 160 | atomic.AddInt64(&hlsDl.segCurrent, 1) 161 | } 162 | } 163 | } 164 | 165 | } 166 | 167 | func (hlsDl *HlsDl) Download() (string, error) { 168 | segs, err := parseHlsSegments(hlsDl.hlsURL, hlsDl.headers) 169 | if err != nil { 170 | return "", err 171 | } 172 | segmentsDir := filepath.Join(hlsDl.dir, fmt.Sprintf("%d", hlsDl.startTime)) 173 | if err := os.MkdirAll(segmentsDir, os.ModePerm); err != nil { 174 | return "", err 175 | } 176 | if err := hlsDl.downloadSegments(segmentsDir, segs); err != nil { 177 | return "", err 178 | } 179 | fp, err := hlsDl.join(segmentsDir, segs) 180 | if err != nil { 181 | return "", err 182 | } 183 | 184 | return fp, nil 185 | } 186 | 187 | func (hlsDl *HlsDl) getKey(segment *Segment) (key []byte, iv []byte, err error) { 188 | res, err := hlsDl.client.SetHeaders(hlsDl.headers).R().Get(segment.Key.URI) 189 | if err != nil { 190 | return nil, nil, err 191 | } 192 | if res.StatusCode() != 200 { 193 | return nil, nil, errors.New("failed to get descryption key") 194 | } 195 | 196 | key = res.Body() 197 | iv = []byte(segment.Key.IV) 198 | if len(iv) == 0 { 199 | iv = defaultIV(segment.SeqId) 200 | } 201 | return 202 | } 203 | 204 | func (hlsDl *HlsDl) GetProgress() float64 { 205 | var current int64 206 | if hlsDl.enableBar { 207 | current = hlsDl.bar.Get() 208 | } else { 209 | current = atomic.LoadInt64(&hlsDl.segCurrent) 210 | } 211 | return float64(current) / float64(hlsDl.segTotal) 212 | } 213 | 214 | func (hlsDl *HlsDl) join(segmentsDir string, segments []*Segment) (string, error) { 215 | log.Println("Joining segments") 216 | 217 | outFile := filepath.Join(hlsDl.dir, hlsDl.filename) 218 | 219 | // Create the output file 220 | f, err := os.Create(outFile) 221 | if err != nil { 222 | return "", fmt.Errorf("failed to create output file: %w", err) 223 | } 224 | defer f.Close() 225 | 226 | // Sort the segments by SeqId to ensure correct order 227 | sort.Slice(segments, func(i, j int) bool { 228 | return segments[i].SeqId < segments[j].SeqId 229 | }) 230 | 231 | // Clean up the segmentsDir after processing 232 | defer func() { 233 | if err := os.RemoveAll(segmentsDir); err != nil { 234 | log.Printf("failed to remove segments directory: %v", err) 235 | } 236 | }() 237 | 238 | // Process each segment one by one 239 | for _, segment := range segments { 240 | if segment.Key != nil { 241 | key, iv, err := hlsDl.getKey(segment) 242 | if err != nil { 243 | return "", err 244 | } 245 | // Decrypt the segment and write it directly to the output file 246 | if err := decryptAES128Stream(segment.Path, f, key, iv); err != nil { 247 | return "", err 248 | } 249 | } else { 250 | if err := decodeStream(segment.Path, f); err != nil { 251 | return "", err 252 | } 253 | } 254 | 255 | // Remove the segment file after processing 256 | if err := os.Remove(segment.Path); err != nil { 257 | log.Printf("failed to remove segment file (%s): %v", segment.Path, err) 258 | } 259 | } 260 | 261 | return outFile, nil 262 | } 263 | -------------------------------------------------------------------------------- /hlsdl_test.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "fmt" 5 | "testing" 6 | ) 7 | 8 | func TestDownloadEncrypted(t *testing.T) { 9 | hlsDl := New("https://cdn.theoplayer.com/video/big_buck_bunny_encrypted/stream-800/index.m3u8", nil, "./download", "", 2, false) 10 | filepath, err := hlsDl.Download() 11 | if err != nil { 12 | t.Fatal(err) 13 | } 14 | fmt.Println(filepath) 15 | // os.RemoveAll(filepath) 16 | } 17 | 18 | func TestDownloadNormal(t *testing.T) { 19 | hlsDl := New("https://cdn.theoplayer.com/video/big_buck_bunny/stream-800/index.m3u8", nil, "./download", "", 2, false) 20 | filepath, err := hlsDl.Download() 21 | if err != nil { 22 | t.Fatal(err) 23 | } 24 | fmt.Println(filepath) 25 | // os.RemoveAll(filepath) 26 | } 27 | -------------------------------------------------------------------------------- /parser.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "bytes" 5 | "errors" 6 | "net/url" 7 | "strings" 8 | "time" 9 | 10 | "github.com/go-resty/resty/v2" 11 | "github.com/grafov/m3u8" 12 | ) 13 | 14 | func parseHlsSegments(hlsURL string, headers map[string]string) ([]*Segment, error) { 15 | baseURL, err := url.Parse(hlsURL) 16 | if err != nil { 17 | return nil, errors.New("Invalid m3u8 url") 18 | } 19 | 20 | p, t, err := getM3u8ListType(hlsURL, headers) 21 | if err != nil { 22 | return nil, err 23 | } 24 | if t != m3u8.MEDIA { 25 | return nil, errors.New("No support the m3u8 format") 26 | } 27 | 28 | mediaList := p.(*m3u8.MediaPlaylist) 29 | segments := []*Segment{} 30 | for _, seg := range mediaList.Segments { 31 | if seg == nil { 32 | continue 33 | } 34 | 35 | if !strings.Contains(seg.URI, "http") { 36 | segmentURL, err := baseURL.Parse(seg.URI) 37 | if err != nil { 38 | return nil, err 39 | } 40 | 41 | seg.URI = segmentURL.String() 42 | } 43 | 44 | if seg.Key == nil && mediaList.Key != nil { 45 | seg.Key = mediaList.Key 46 | } 47 | 48 | if seg.Key != nil && !strings.Contains(seg.Key.URI, "http") { 49 | keyURL, err := baseURL.Parse(seg.Key.URI) 50 | if err != nil { 51 | return nil, err 52 | } 53 | 54 | seg.Key.URI = keyURL.String() 55 | } 56 | 57 | segment := &Segment{MediaSegment: seg} 58 | segments = append(segments, segment) 59 | } 60 | 61 | return segments, nil 62 | } 63 | 64 | func getM3u8ListType(url string, headers map[string]string) (m3u8.Playlist, m3u8.ListType, error) { 65 | client := resty.New() 66 | client.SetRetryCount(5).SetRetryWaitTime(time.Second) 67 | resp, err := client.R().SetHeaders(headers).Get(url) 68 | if err != nil { 69 | return nil, 0, err 70 | } 71 | if resp.StatusCode() != 200 { 72 | return nil, 0, errors.New(resp.Status()) 73 | } 74 | p, t, err := m3u8.DecodeFrom(bytes.NewReader(resp.Body()), false) 75 | if err != nil { 76 | return nil, 0, err 77 | } 78 | return p, t, nil 79 | } 80 | -------------------------------------------------------------------------------- /parser_test.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "testing" 5 | ) 6 | 7 | func Test(t *testing.T) { 8 | _, err := parseHlsSegments("https://cdn.theoplayer.com/video/big_buck_bunny_encrypted/stream-800/index.m3u8", nil) 9 | if err != nil { 10 | t.Fatal(err) 11 | } 12 | } 13 | -------------------------------------------------------------------------------- /puller.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "errors" 5 | "log" 6 | "net/url" 7 | "os" 8 | "strings" 9 | "time" 10 | 11 | "github.com/grafov/m3u8" 12 | ) 13 | 14 | type SegmentPuller struct { 15 | Segment *Segment 16 | Err error 17 | } 18 | 19 | func pullSegment(hlsURL string, quitSignal chan os.Signal) chan *SegmentPuller { 20 | c := make(chan *SegmentPuller) 21 | 22 | go func() { 23 | defer close(c) 24 | 25 | baseURL, err := url.Parse(hlsURL) 26 | if err != nil { 27 | c <- &SegmentPuller{Err: err} 28 | return 29 | } 30 | 31 | pulledSegment := map[uint64]bool{} 32 | 33 | for { 34 | p, t, err := getM3u8ListType(hlsURL, nil) 35 | if err != nil { 36 | c <- &SegmentPuller{Err: err} 37 | return 38 | } 39 | if t != m3u8.MEDIA { 40 | c <- &SegmentPuller{Err: errors.New("No support the m3u8 format")} 41 | return 42 | } 43 | 44 | mediaList := p.(*m3u8.MediaPlaylist) 45 | if mediaList.Closed { 46 | c <- &SegmentPuller{Err: errors.New("The stream has been closed")} 47 | } 48 | 49 | duration := time.NewTicker(time.Duration(mediaList.TargetDuration) * time.Second) 50 | 51 | for _, seg := range mediaList.Segments { 52 | if seg == nil { 53 | continue 54 | } 55 | 56 | if pulledSegment[seg.SeqId] { 57 | continue 58 | } else { 59 | pulledSegment[seg.SeqId] = true 60 | } 61 | 62 | if !strings.Contains(seg.URI, "http") { 63 | segmentURL, err := baseURL.Parse(seg.URI) 64 | if err != nil { 65 | c <- &SegmentPuller{Err: err} 66 | return 67 | } 68 | 69 | seg.URI = segmentURL.String() 70 | } 71 | 72 | if seg.Key == nil && mediaList.Key != nil && mediaList.Key.Method != "NONE" { 73 | seg.Key = mediaList.Key 74 | } 75 | 76 | if seg.Key != nil { 77 | if seg.Key.Method == "NONE" { 78 | seg.Key = nil 79 | } else if !strings.Contains(seg.Key.URI, "http") { 80 | keyURL, err := baseURL.Parse(seg.Key.URI) 81 | if err != nil { 82 | c <- &SegmentPuller{Err: err} 83 | return 84 | } 85 | seg.Key.URI = keyURL.String() 86 | } 87 | } 88 | 89 | select { 90 | case c <- &SegmentPuller{Segment: &Segment{MediaSegment: seg}}: 91 | case <-quitSignal: 92 | log.Println("Got stop signal") 93 | return 94 | } 95 | } 96 | 97 | <-duration.C 98 | } 99 | }() 100 | 101 | return c 102 | } 103 | -------------------------------------------------------------------------------- /recorder.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "errors" 5 | "log" 6 | "os" 7 | "os/signal" 8 | "path/filepath" 9 | "time" 10 | 11 | "github.com/go-resty/resty/v2" 12 | ) 13 | 14 | type Recorder struct { 15 | client *resty.Client 16 | dir string 17 | url string 18 | headers map[string]string 19 | filename string 20 | startTime int64 21 | } 22 | 23 | func NewRecorder(url string, headers map[string]string, dir, filename string) *Recorder { 24 | return &Recorder{ 25 | url: url, 26 | dir: dir, 27 | client: resty.New(), 28 | headers: headers, 29 | filename: filename, 30 | startTime: time.Now().UnixMilli(), 31 | } 32 | } 33 | 34 | // Start starts a record a live streaming 35 | func (r *Recorder) Start() (string, error) { 36 | log.Println("Start record live streaming movie...") 37 | 38 | quitSignal := make(chan os.Signal, 1) 39 | signal.Notify(quitSignal, os.Interrupt) 40 | puller := pullSegment(r.url, quitSignal) 41 | filePath := filepath.Join(r.dir, r.filename) 42 | file, err := os.Create(filePath) 43 | if err != nil { 44 | return "", err 45 | } 46 | defer file.Close() 47 | 48 | LOOP: 49 | for segment := range puller { 50 | if segment.Err != nil { 51 | return "", segment.Err 52 | } 53 | 54 | dc := r.downloadSegmentC(segment.Segment) 55 | 56 | select { 57 | case report := <-dc: 58 | if report.Err != nil { 59 | return "", report.Err 60 | } 61 | 62 | if _, err := file.Write(report.Data); err != nil { 63 | return "", err 64 | } 65 | case <-quitSignal: 66 | break LOOP 67 | } 68 | 69 | log.Println("Recorded segment ", segment.Segment.SeqId) 70 | } 71 | 72 | return filePath, nil 73 | } 74 | 75 | type DownloadSegmentReport struct { 76 | Data []byte 77 | Err error 78 | } 79 | 80 | func (r *Recorder) downloadSegmentC(segment *Segment) chan *DownloadSegmentReport { 81 | c := make(chan *DownloadSegmentReport, 1) 82 | go func() { 83 | data, err := r.downloadSegment(segment) 84 | c <- &DownloadSegmentReport{ 85 | Data: data, 86 | Err: err, 87 | } 88 | }() 89 | return c 90 | } 91 | 92 | func (r *Recorder) downloadSegment(segment *Segment) ([]byte, error) { 93 | res, err := r.client.R().SetHeaders(r.headers).Get(segment.URI) 94 | if err != nil { 95 | return nil, err 96 | } 97 | if res.StatusCode() != 200 { 98 | return nil, errors.New(res.Status()) 99 | } 100 | data := res.Body() 101 | if segment.Key != nil { 102 | key, iv, err := r.getKey(segment) 103 | if err != nil { 104 | return nil, err 105 | } 106 | data, err = decryptAES128(data, key, iv) 107 | if err != nil { 108 | return nil, err 109 | } 110 | } 111 | 112 | for j := 0; j < len(data); j++ { 113 | if data[j] == syncByte { 114 | data = data[j:] 115 | break 116 | } 117 | } 118 | 119 | return data, nil 120 | } 121 | 122 | func (r *Recorder) getKey(segment *Segment) (key []byte, iv []byte, err error) { 123 | res, err := r.client.R().SetHeaders(r.headers).Get(segment.Key.URI) 124 | if err != nil { 125 | return nil, nil, err 126 | } 127 | 128 | if res.StatusCode() != 200 { 129 | return nil, nil, errors.New("Failed to get descryption key") 130 | } 131 | 132 | key = res.Body() 133 | iv = []byte(segment.Key.IV) 134 | if len(iv) == 0 { 135 | iv = defaultIV(segment.SeqId) 136 | } 137 | return 138 | } 139 | -------------------------------------------------------------------------------- /util.go: -------------------------------------------------------------------------------- 1 | package hlsdl 2 | 3 | import ( 4 | "encoding/json" 5 | "fmt" 6 | "time" 7 | ) 8 | 9 | func printStruct(v interface{}) { 10 | d, _ := json.Marshal(v) 11 | fmt.Println(string(d)) 12 | } 13 | 14 | func getFilename() string { 15 | return time.Now().Format("20060102150405") + ".ts" 16 | } 17 | --------------------------------------------------------------------------------