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#1
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capturing twitter video?
Can anyone tell me how to capture the (first) video from
https://twitter.com/BBCSteveR/status...30457500151816 ? I have Windows 7-32, latest Chrome with DownloadHelper, and ancient Firefox (27.0.1) with the same. Also: when I load the above into the Chrome, I get a popover (is that the right word?), with the video already playing in it - but muted; if I hover over it so the controls are visible, one of them is the speaker-with-X universal symbol for muted audio, and if I click that, I hear it. Is that normal? (I don't often view twitter pages.) -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf A. Top-posters. Q. What's the most irritating thing on Usenet? |
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#2
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capturing twitter video?
J. P. Gilliver (John) wrote:
Can anyone tell me how to capture the (first) video from https://twitter.com/BBCSteveR/status...30457500151816 ? I have Windows 7-32, latest Chrome with DownloadHelper, and ancient Firefox (27.0.1) with the same. Applian's Replay Media Catcher (RMC) captured the video; however, I had to allow some script sources that were blocked by uMatrix. Plus I had to stop and start the video a couple times before RMC's proxy could detect the source of the media stream, which was: https://video.twimg.com/ext_tw_video...8Q37uOchZ.m3u8 But downloading the file using that URL (or adding /Twitter.mp4 which was the name of the stream) won't get you the video to play locally. You have to capture the stream as it is delivered. RMC (or Jaksta which Applian rebranded as their RMC product) can capture media stream. There are other stream capture programs. I've tried many free ones and gave up on them and decided to pay for a decent stream capturer: $50 for Applian's RMC ($30 for Jaksta's Media Recorder). When RMC was incapable of capturing a media stream and told about it, they usually got an update out in a week or two. I haven't compared the feature set of RMC against Jaksta for a couple years. Back then, they were the same price but there must've been something I liked better about RMC. Now RMC is way more expensive than Jaksta but I didn't see a difference in a cursory scan of the product descriptions for both. Both come with a 30-day money back guarantee. If I was to get one of them now (and not paying the upgrade cost but full first-time purchase price), I'd get Jaksta's Media Recorder. Note that neither will record video streams encoded using RTMPe. Although Adobe stated that the encryption was to protect the content and NOT to enforce DRM (digital rights management), it turned out used for DRM by the content owners. Applian, Jaksta, and several other stream capturers were threatened with lawsuits by receiving a letter of intent (don't remember who sent it). Rather than fight it out in court, Applian, Jaksta, and most others removed RTMPE support. I do remember finding some rather crude and ancient stream capturers that still had RTMPE but, as I recall, those were long-dead programs (aka abandonware). RMC will capture several different streaming protocols, including RTMP, but will refuse to illegally capture RTMPe streams that also employ SWF verification; see https://en.wikipedia.org/wiki/Protected_Streaming. https://en.wikipedia.org/wiki/Real-T...aging_Protocol That mentions and I've heard of rtmpdump for capturing RTMPe streams. It will be up to YOU to dig into the web page code (might not be in the page but script on the server decides where to find the source) to figure out how to define to rtmpdump where is the source of a stream. Good luck with that. Sites like to hide where is the stream source, plus selection is often a server-side operation. If you still want to try rtmpdump (free), see: http://rtmpdump.mplayerhq.hu/ To capture those streams, you have to use a screen recorder. That records a region of your monitor's screen which means the recording will contains undesirable artifacts, like you pausing the video, dragging the mouse cursor across the video, jerkiness in playback, stuttering due to network delays or retries, etc. The recording will exactly what you see on your screen (instead of capturing the stream which would be devoid of any playback artifacts you see when viewing the stream). Applian has their own screen capture tool (Replay Video Capture) but not Jaksta; however, there are many others (some good, most are pretty crappy). If you can see it on your monitor, you can capture that part of the screen regardless of how a site might try to protect or control their content. Flash is going away but content will remain for years as well as the servers. HTML5 video is taking over. I haven't bothered to check how DRM is enforced using HTML5 video. Maybe that will be handled by managing which codec a site uses for encoding their videos. Codecs (coders/decoders) are code and as such will run programs which, for example, could perform proprietary handshaking with the server. If that's how it will get done, each site could mandate you retrieve and use their codec if you want to see their streamed content. I did find: https://w3c.github.io/encrypted-media/ Although not specifically a DRM scheme, the codec could require a connection with the media source to allow playback of the video. What you end up getting is just a skeletal file pointing back to a server where is the actual video, similar to how some .swf files work (they're small because they don't have content but just point to where is the content). You look like you're locally playing the content until you try to play when there is no Internet connection or their content server cannot be reached. https://www.html5rocks.com/en/tutorials/eme/basics/ See "EME implementations use the following external components". I'm not sure what any stream capturer will retrieve with protected (DRM'ed) HTML5 video. It may retrieve the stream but you can't play it unless the EME codec can reach the license server. Don't expect stream capture software to capture all stream types, especially any protected content. You may have to resort to the more crappy result of recording a portion of the screen to record a video. Stream capture means you don't have to sit there watching an entire video from beginning to end. You load the web page with the stream and RMC will detect the stream and begin to retrieve it to build into a local file. You can go away, do other work, or whatever you want while RMC records in the background. Plus capturing a stream is at a faster rate (as fast as the server will deliver) than playing the stream. I can capture a 3-hour movie in about 20 minutes. Could be less, could be more. Depends on how big is the stream which depends on how it was encoded and at what resolution. Screen capture means having to babysit your computer during the recording. You have to be there to load the page and begin the recording (which can result in losing the first few seconds of a video while you're trying to startup the screen capture tool and designate what region of the screen to capture). You have to be there to stop the recording when the video ends (or use editing software to chop off the garbage recorded at the end because you weren't around to stop the recording). An stutter or jitter in playing the video will be included in the screen capture. Whatever you see in that region of the screen is what gets recorded. Also: when I load the above into the Chrome, I get a popover (is that the right word?), with the video already playing in it - but muted; if I hover over it so the controls are visible, one of them is the speaker-with-X universal symbol for muted audio, and if I click that, I hear it. Is that normal? (I don't often view twitter pages.) Your web browser may not be a sufficient player for the streamed content. It doesn't understand the proprietary encoding used in the video. Sites can employ their own Javascripted player that can decode the video. It's their attempt to force you to view their video using their player and prevent you from capturing it. However, RMC can still capture many but not all of these "special embedded player required" videos as long as it can detect the source of the stream and if the stream uses standard transmission protocols. |
#3
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capturing twitter video?
In message , VanguardLH
writes: J. P. Gilliver (John) wrote: Can anyone tell me how to capture the (first) video from https://twitter.com/BBCSteveR/status...30457500151816 ? I have Windows 7-32, latest Chrome with DownloadHelper, and ancient Firefox (27.0.1) with the same. Applian's Replay Media Catcher (RMC) captured the video; however, I had to allow some script sources that were blocked by uMatrix. Plus I had to stop and start the video a couple times before RMC's proxy could detect the source of the media stream, which was: https://video.twimg.com/ext_tw_video...u/pl/640x360/P tKrC_K8Q37uOchZ.m3u8 But downloading the file using that URL (or adding /Twitter.mp4 which was the name of the stream) won't get you the video to play locally. You have to capture the stream as it is delivered. [VERY comprehensive reply snipped.] Life's too short; it was only an "I'd like" (including for some blind friends) thought. Sorry to say this after you've clearly put a lot of effort into your response; I _have_ marked your post as "keep" (I have a 3-day expiry on most newsgroups). [Unless you can email me the capture (-:, but it really isn't important] -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf "I'm a self-made man, thereby demonstrating once again the perils of unskilled labor..." - Harlan Ellison |
#4
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capturing twitter video?
J. P. Gilliver (John) wrote:
Can anyone tell me how to capture the (first) video from https://twitter.com/BBCSteveR/status...30457500151816 ? I have Windows 7-32, latest Chrome with DownloadHelper, and ancient Firefox (27.0.1) with the same. Also: when I load the above into the Chrome, I get a popover (is that the right word?), with the video already playing in it - but muted; if I hover over it so the controls are visible, one of them is the speaker-with-X universal symbol for muted audio, and if I click that, I hear it. Is that normal? (I don't often view twitter pages.) http://twittervideodownloader.com/ https://i.postimg.cc/LX3465Y2/twitter_download.gif Paul |
#5
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capturing twitter video?
In message , Paul
writes: J. P. Gilliver (John) wrote: Can anyone tell me how to capture the (first) video from https://twitter.com/BBCSteveR/status...30457500151816 ? I have Windows 7-32, latest Chrome with DownloadHelper, and ancient Firefox (27.0.1) with the same. Also: when I load the above into the Chrome, I get a popover (is that the right word?), with the video already playing in it - but muted; if I hover over it so the controls are visible, one of them is the speaker-with-X universal symbol for muted audio, and if I click that, I hear it. Is that normal? (I don't often view twitter pages.) http://twittervideodownloader.com/ https://i.postimg.cc/LX3465Y2/twitter_download.gif Paul Perfect, thanks! Even (presumably because the work is done there) works in my ancient Firefox! -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf If vegetarians eat vegetables,..beware of humanitarians! |
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