Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Compression Techniques Live streaming video

  • Jeff Mack

    May 21, 2009 at 1:33 am

    Of course there are many factors including location but AT&T 3G claim upload speeds of between 500kbps and 1.2mbps

    Craig,

    This is what they want any average person to think. I have tried a lot of carriers and a lot of cards and it is unrealistic. Especially if you are truly mobile. Just like you say, locations vary greatly but I’ll bet a steak dinner you won’t get 500 for any time at all.

    Don’t mean to be a downer but it’s true.

    Jeff

  • Craig Seeman

    May 21, 2009 at 1:46 am

    These are all streams from mobile phones.
    https://qik.com/
    So obviously some of the phone companies provide enough upload bandwidth.

    At Streaming Media East the founder of the qik live streamed the session he was on with a Nokia 95 I believe ( I don’t remember his service provider) and he said 640×480 at close to 30fps is possible.

  • Jeff Mack

    May 21, 2009 at 3:51 am

    At Streaming Media East the founder of the qik live streamed the session he was on with a Nokia 95 I believe ( I don’t remember his service provider) and he said 640×480 at close to 30fps is possible

    Yeah, maybe so but they are not the ex1. Uploading off of a card is just not possible right now with the quality of a dsl line.

    Jeff

  • Craig Seeman

    May 21, 2009 at 4:06 am

    [Jeff Mack] “Yeah, maybe so but they are not the ex1.”

    The source encode is dependent on the computer’s CPU and GPU. If the laptop (which has a far more powerful processor than a typical cell phone) can do a real time CBR encode of the source down to 300-500kbps then that’s all the upload needs to be (plus some headroom).

    I’ve tested the EX1 in HDV mode via firewire with a Core Duo 2.4GHz MacBookPro and the CPU can handle it. Use an outboard box like Matrox MXO2 or AJA IO and you further relieve the burden of the CPU.

    Simply the Laptop has far better encoder power than a cell phone. Cell phone providers can handle reasonable video upload rates for video as verified by QIK.

    It can be done. It has been done. Often.

  • Jeff Mack

    May 21, 2009 at 2:03 pm

    Craig, I guess we should agree to disagree. The OP stated that he was going to use a broadcast quality cam to do live streaming in remote areas. The laptop I agree can do a nice encode (I use a MBP as well)but that has nothing to do in this case in delivering a broadcast quality image to the internet. It is a limitation of the card to sustain a suitable bandwidth for a sustained period of time. The Qik references that you cited are NOT broadcast quality. I realize that cellphone/smartphones can do this but it is highly compressed and looks like crap compared to what the OP is intending to send – they are certainly not broadcast quality. My original post was dissing the carriers for “tricking” people into thinking that 3G means 3G upload as well. AND, we’re not even discussing the fact of the OP’s remote locations.

    Jeff

  • Danny Dodge

    May 21, 2009 at 5:42 pm

    Jeff,
    I think I mislead you. I know there’s no possibility to stream true broadcast quality, so I’m ok with the standard quarter screen that most consumers have come to accept. The day we get to the point that we can stream full screen video, we will be doing everything different.
    Thanks for your input,
    Danny

  • Tom Adams

    August 3, 2009 at 5:20 am

    Craig,
    Could you go into a slightly different aspect of this streaming video discussion? If you have the video in your machine, have a decent upstream path and have your own website, can you comment/educate me on what to do/ask for to show the video on a personal domain name/website? This is a real domain name I own and would like to be able to go to a page on my site and see a video I am sending up from home. My ISP help/support page talks about supported MIME formats. I haven’t been able to tie the pieces together. Tom

Page 3 of 3

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy