Shell-Skript zum Abrufen eines oder mehrerer Wistia-Videos

2024-5-28 • tag-icon

Shell-Skript zum Abrufen eines oder mehrerer Wistia-Videos

Was wäre die beste Möglichkeit, ein Shell-Skript zu erstellen, das ein oder mehrere Wistia-Videos erfasst?

Es gibt zahlreiche Proof-of-Concepts zum Herunterladen von YouTube-Videos über ein Shell-Skript (z. B.:http://computing.dcu.ie/~humphrys/Notes/UNIX/lab.youtube.html) – allerdings scheint es etwas komplizierter zu sein, da Wistia eine gewisse Verschleierung verwendet.

Stellen wir uns der Argumentation halber vor, ich möchte alle Videos (im .mp4- oder .flv-Format) vonhttps://www.optimizely.com/opticon/sessions/zu einem *nix-Server.

Wir können für jeden der Videolinks (iFrames) Folgendes bestimmen:

Als Ausgangspunkt habe ich mit Folgendem begonnen:

$ wget https://fast.wistia.net/embed/iframe/xcorh9bx2t

Dann xcorh9bx2thaben wir in interessantes HTML, das wahrscheinlich analysiert werden kann.

Beispiel:

$ cat xcorh9bx2t | grep .flv
    Wistia.iframeInit({"assets":[{"type":"original","slug":"original","display_name":"Original file","width":1920,"height":1080,"ext":"mp4","size":3099425793,"bitrate":10139,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/a1706057d64d7d4c1a39f28539a2475f8bd28123.bin","created_at":1435770832},{"type":"iphone_video","slug":"mp4_h264_932k","display_name":"360p","container":"mp4","codec":"h264","width":640,"height":360,"ext":"mp4","size":284937429,"bitrate":932,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/d402b0a53106ca07fac1fa6a403b280640546102.bin","created_at":1435770832,"opt_vbitrate":800},{"type":"flash_video","slug":"flv_h264_819k","display_name":"360p","container":"flv","codec":"h264","width":640,"height":360,"ext":"flv","size":250541036,"bitrate":819,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/33d11cd62475bc8e823f4091e802ee1c48407d02.bin","created_at":1435770832,"opt_vbitrate":700},{"type":"flash_video","slug":"flv_h264_330k","display_name":"224p","container":"flv","codec":"h264","width":400,"height":224,"ext":"flv","size":101132686,"bitrate":330,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/35e479cea895d39f6ffa62a1b30f5417b3bbdbe7.bin","created_at":1435770832,"opt_vbitrate":200},{"type":"mp4_video","slug":"mp4_h264_328k","display_name":"224p","container":"mp4","codec":"h264","width":400,"height":224,"ext":"mp4","size":100518328,"bitrate":328,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/f381cae06fbf0812def4dd25b02d75cf5a755862.bin","created_at":1435770832,"opt_vbitrate":200},{"type":"md_flash_video","slug":"flv_h264_1308k","display_name":"540p","container":"flv","codec":"h264","width":960,"height":540,"ext":"flv","size":400097566,"bitrate":1308,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/e7bb3744f468b6957a66e77646264ba7df192da8.bin","created_at":1435770832,"opt_vbitrate":1200},{"type":"md_mp4_video","slug":"mp4_h264_1306k","display_name":"540p","container":"mp4","codec":"h264","width":960,"height":540,"ext":"mp4","size":399475890,"bitrate":1306,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/96c7c3df12bca82781bb91f828c5a73584d41986.bin","created_at":1435770832,"opt_vbitrate":1200},{"type":"hd_flash_video","slug":"flv_h264_2579k","display_name":"720p","container":"flv","codec":"h264","width":1280,"height":720,"ext":"flv","size":788608424,"bitrate":2579,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/4bdc9ccad52d20fa8ef0758723f462cc0975b058.bin","created_at":1435770832,"opt_vbitrate":2500},{"type":"hd_mp4_video","slug":"mp4_h264_2577k","display_name":"720p","container":"mp4","codec":"h264","width":1280,"height":720,"ext":"mp4","size":787978856,"bitrate":2577,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/c6d2bb8dbe4efcc83bbc83360640b35fff88cf09.bin","created_at":1435770832,"opt_vbitrate":2500},{"type":"hd_flash_video","slug":"flv_h264_3802k","display_name":"1080p","container":"flv","codec":"h264","width":1920,"height":1080,"ext":"flv","size":1162495511,"bitrate":3802,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/842bd773588d0ceedec3bd1b947d203735b7bed2.bin","created_at":1435770832,"opt_vbitrate":3750},{"type":"hd_mp4_video","slug":"mp4_h264_3800k","display_name":"1080p","container":"mp4","codec":"h264","width":1920,"height":1080,"ext":"mp4","size":1161857141,"bitrate":3800,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/6f3a6043d431a58b907503997d7fd276c584cb4b.bin","created_at":1435770832,"opt_vbitrate":3750},{"type":"mp4_video","slug":"mp4_h264_311k","display_name":"360p","container":"mp4","codec":"h264","width":640,"height":360,"ext":"mp4","size":95330863,"bitrate":311,"public":false,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/2eaee4ad203f0a5ad223c2db5a9b5c6506683df1.bin","created_at":1435770832,"opt_vbitrate":600},{"type":"still_image","slug":"still_image_1280x720","display_name":"Image","width":1280,"height":720,"ext":"jpg","size":92160,"bitrate":0,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/be55b81db186b83574c23db7c893e12b5651cc80.bin","created_at":1436925915}],"unnamed_assets":[{"type":"original","slug":"original","display_name":"Original file","width":1920,"height":1080,"ext":"mp4","size":3099425793,"bitrate":10139,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/a1706057d64d7d4c1a39f28539a2475f8bd28123.bin","created_at":1435770832},{"type":"iphone_video","slug":"mp4_h264_932k","display_name":"360p","container":"mp4","codec":"h264","width":640,"height":360,"ext":"mp4","size":284937429,"bitrate":932,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/d402b0a53106ca07fac1fa6a403b280640546102.bin","created_at":1435770832,"opt_vbitrate":800},{"type":"flash_video","slug":"flv_h264_819k","display_name":"360p","container":"flv","codec":"h264","width":640,"height":360,"ext":"flv","size":250541036,"bitrate":819,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/33d11cd62475bc8e823f4091e802ee1c48407d02.bin","created_at":1435770832,"opt_vbitrate":700},{"type":"flash_video","slug":"flv_h264_330k","display_name":"224p","container":"flv","codec":"h264","width":400,"height":224,"ext":"flv","size":101132686,"bitrate":330,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/35e479cea895d39f6ffa62a1b30f5417b3bbdbe7.bin","created_at":1435770832,"opt_vbitrate":200},{"type":"mp4_video","slug":"mp4_h264_328k","display_name":"224p","container":"mp4","codec":"h264","width":400,"height":224,"ext":"mp4","size":100518328,"bitrate":328,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/f381cae06fbf0812def4dd25b02d75cf5a755862.bin","created_at":1435770832,"opt_vbitrate":200},{"type":"md_flash_video","slug":"flv_h264_1308k","display_name":"540p","container" "flv","codec":"h264","width":960,"height":540,"ext":"flv","size":400097566,"bitrate":1308,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/e7bb3744f468b6957a66e77646264ba7df192da8.bin","created_at":1435770832,"opt_vbitrate":1200},{"type":"md_mp4_video","slug":"mp4_h264_1306k","display_name":"540p","container":"mp4","codec":"h264","width":960,"height":540,"ext":"mp4","size":399475890,"bitrate":1306,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/96c7c3df12bca82781bb91f828c5a73584d41986.bin","created_at":1435770832,"opt_vbitrate":1200},{"type":"hd_flash_video","slug":"flv_h264_2579k","display_name":"720p","container":"flv","codec":"h264","width":1280,"height":720,"ext":"flv","size":788608424,"bitrate":2579,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/4bdc9ccad52d20fa8ef0758723f462cc0975b058.bin","created_at":1435770832,"opt_vbitrate":2500},{"type":"hd_mp4_video","slug":"mp4_h264_2577k","display_name":"720p","container":"mp4","codec":"h264","width":1280,"height":720,"ext":"mp4","size":787978856,"bitrate":2577,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/c6d2bb8dbe4efcc83bbc83360640b35fff88cf09.bin","created_at":1435770832,"opt_vbitrate":2500},{"type":"hd_flash_video","slug":"flv_h264_3802k","display_name":"1080p","container":"flv","codec":"h264","width":1920,"height":1080,"ext":"flv","size":1162495511,"bitrate":3802,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/842bd773588d0ceedec3bd1b947d203735b7bed2.bin","created_at":1435770832,"opt_vbitrate":3750},{"type":"hd_mp4_video","slug":"mp4_h264_3800k","display_name":"1080p","container":"mp4","codec":"h264","width":1920,"height":1080,"ext":"mp4","size":1161857141,"bitrate":3800,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/6f3a6043d431a58b907503997d7fd276c584cb4b.bin","created_at":1435770832,"opt_vbitrate":3750},{"type":"mp4_video","slug":"mp4_h264_311k","display_name":"360p","container":"mp4","codec":"h264","width":640,"height":360,"ext":"mp4","size":95330863,"bitrate":311,"public":false,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/2eaee4ad203f0a5ad223c2db5a9b5c6506683df1.bin","created_at":1435770832,"opt_vbitrate":600},{"type":"still_image","slug":"still_image_1280x720","display_name":"Image","width":1280,"height":720,"ext":"jpg","size":92160,"bitrate":0,"public":true,"status":2,"progress":1.0,"url":"https://embed-ssl.wistia.com/deliveries/be55b81db186b83574c23db7c893e12b5651cc80.bin","created_at":1436925915}],"distilleryUrl":"https://distillery-main.wistia.com/x","accountKey":"wistia-production_58149","mediaKey":"wistia-production_14783299","type":"Video","progress":1.0,"status":2,"name":"Opticon 2015 Keynote Address","duration":2388.35,"hashedId":"xcorh9bx2t","branding":false,"seoDescription":"an Opticon Session Videos (Public) video from Optimizely","preloadPreference":null,"flashPlayerUrl":"https://embed-ssl.wistia.com/flash/embed_player_v2.0.swf?2015-02-27","showAbout":true,"createdAt":1435770832,"firstEmbedForAccount":false,"firstShareForAccount":false,"stats":{"loadCount":403,"playCount":369,"uniqueLoadCount":267,"uniquePlayCount":250,"averageEngagement":0.186758},"trackingTransmitInterval":79,"playerPreference":"auto","integrations":{"marketo":true},"embed_options":{"volumeControl":"true","fullscreenButton":"true","controlsVisibleOnLoad":"true","playerColor":"7b796a","bpbTime":"false","googleAnalytics":true,"videoQuality":"","vulcan":"false","version":"v2","playButton":"true","smallPlayButton":"true","playbar":"true","branding":"false","plugin":{"socialbar-v1":{"buttons":"twitter-linkedIn-facebook","showTweetCount":"false","tweetText":"Learning lots from the thought leadership at @optimizely! Check out: {video_name}","height":"25"}},"autoPlay":"false","endVideoBehavior":"default"}}, {});

Im Wesentlichen sieht es so aus, als ob das Wistia-iFrame über JavaScript verfügt, das die Funktion ausführt und auf eine verschleierte URL wie diese Wistia.iframeInit()verweist : ..binhttps://embed-ssl.wistia.com/deliveries/[Unique40BitToken].bin

Wenn ich das analysiere und dann mit wget ausführe (oder es in einem Browser öffne), scheint es zu funktionieren, und zwar:

$ wget https://embed-ssl.wistia.com/deliveries/d402b0a53106ca07fac1fa6a403b280640546102.bin
--2016-06-26 14:29:08--  https://embed-ssl.wistia.com/deliveries/d402b0a53106ca07fac1fa6a403b280640546102.bin
Resolving embed-ssl.wistia.com (embed-ssl.wistia.com)... 72.21.81.253
Connecting to embed-ssl.wistia.com (embed-ssl.wistia.com)|72.21.81.253|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 284937429 (272M) [video/mp4]
Saving to: âd402b0a53106ca07fac1fa6a403b280640546102.binâ

100%[======================================================================================================================================================================>] 284,937,429 45.7MB/s   in 6.9s

2016-06-26 14:29:15 (39.2 MB/s) - âd402b0a53106ca07fac1fa6a403b280640546102.binâ saved [284937429/284937429]

Die resultierende Datei ist 272Mungefähr richtig.

Was wäre also der einfachste Weg, daraus einen eleganten Einzeiler zu machen? Das Parsen der Parameter von Wistia.iframeInit()(das JSON zu sein scheint) mit sedoder awkist höchstwahrscheinlich der beste (oder vielleicht sogar jsawk) scheint der beste Ansatz zu sein.

Antwort1

YouTube-dl unterstützt dies:

$ youtube-dl fast.wistia.net/embed/iframe/xcorh9bx2t
WARNING: The url doesn't specify the protocol, trying with http
[Wistia] xcorh9bx2t: Downloading JSON metadata
[download] Destination: Opticon 2015 Keynote Address-xcorh9bx2t.mp4

Antwort2

Ja, youtube-dlSie können Wistia-Videos herunterladen. Der andere Poster hat jedoch nicht erwähnt, dass Sie möglicherweise eine Datei erhalten your_file_name.binund sich dann fragen, wie Sie diese anzeigen können.

Ändern Sie einfach den Namen in , your_file_name.mp4dann weiß Ihr Videoplayer, wie er mit dem Format umgehen muss.

Antwort1

Antwort2

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