下载视频

Question

我想要一份位于此处的视频副本：

http://www.sirecam.com/sales/Tattersalls_October_Yearling_Sale/2009

我使用了inspect元素，视频应该位于：http://www.sirecam.com/2009/TOYS/TOYS2009_2.flv

但每次我转到这个链接时，我都会得到一个404错误。

我打算使用一个小的python脚本和urlretrieve来下载这个视频，但是我似乎找不到要检索的链接。

任何关于如何找到视频的帮助都将是一次美妙的学习经历。

Answer 1

我是如何使用Chrome找到真正的网址的？

1. 加载http://www.sirecam.com/sales/Tattersalls_October_Yearling_Sale/2009后，打开Developer Tools

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1. 根据问题的大小写选择网络选项卡选项。

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1. 单击播放(在视频上)并查看加载的资源。然后选择“有趣的”一个并查看它加载的网址：

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最后，您可以在另一个视频上测试这些步骤，并查看加载视频的前缀/域是否相同(http://cdn.sirecam.com/)。如果相同，只需抓取视频路径，添加前缀并下载即可。如果不是这样的话，你需要进一步挖掘。

进一步挖掘：

在源代码内部，正如您可能在<param name="flashvars"... value中看到的那样，有一些配置：

config = {
    "key": "#$a13c066f3e6146a6195",
    "clip": {
        "scaling": "orig",
        "autoPlay": true,
        "urlResolvers": "cluster",
        "bufferLength": 6,
        "autoBuffering": true,
        "url": "/2009/TOYS/TOYS2009_2.flv"
    },
    "contextMenu": [{
        "About Sirecam ...": "function()"
    }],
    "canvas": {
        "backgroundImage": "url(images/sirecam/player_bg_sales.png)",
        "backgroundColor": "#ffffff"
    },
    "plugins": {
        "cluster": {
            "debug": true,
            "url": "images/flowplayer/flowplayer.cluster-3.1.1.swf",
            "hosts": ["http://cdn.sirecam.com", "http://d103cgplnnab87.cloudfront.net", "http://s3.sirecam.com", "http://vdo.sirecam.com"],
            "connectTimeout": 20000,
            "failureExpiry": 20000
        },
        "controls": {
            "borderRadius": 0,
            "timeColor": "rgba(253, 185, 49, 1)",
            "slowForward": true,
            "bufferGradient": "none",
            "backgroundColor": "rgba(120, 120, 120, 1)",
            "volumeSliderGradient": "none",
            "slowBackward": false,
            "timeBorderRadius": 20,
            "time": true,
            "progressGradient": "none",
            "height": 22,
            "volumeColor": "rgba(0, 51, 153, 1)",
            "tooltips": {
                "marginBottom": 5,
                "scrubber": true,
                "volume": true,
                "buttons": false
            },
            "opacity": 1,
            "fastBackward": false,
            "timeFontSize": 12,
            "border": "0px",
            "bufferColor": "rgba(0, 51, 153, 1)",
            "volumeSliderColor": "rgba(253, 185, 49, 1)",
            "buttonColor": "rgba(209, 209, 209, 1)",
            "mute": false,
            "autoHide": {
                "enabled": false,
                "hideDelay": 500,
                "hideStyle": "move",
                "mouseOutDelay": 500,
                "hideDuration": 400,
                "fullscreenOnly": true
            },
            "backgroundGradient": [0.5, 0.2, 0],
            "width": "100pct",
            "display": "block",
            "sliderBorder": "1px solid rgba(128, 128, 128, 0.7)",
            "buttonOverColor": "#ffffff",
            "fullscreen": true,
            "timeBgColor": "rgba(0, 0, 0, 0.55)",
            "scrubberBarHeightRatio": 0.2,
            "bottom": 0,
            "stop": false,
            "zIndex": 1,
            "sliderColor": "#000000",
            "scrubberHeightRatio": 0.6,
            "tooltipTextColor": "rgba(51, 51, 51, 1)",
            "spacing": {
                "time": 6,
                "volume": 8,
                "all": 2
            },
            "sliderGradient": "none",
            "timeBgHeightRatio": 0.8,
            "volumeSliderHeightRatio": 0.6,
            "timeSeparator": " ",
            "name": "controls",
            "volumeBarHeightRatio": 0.2,
            "left": "50pct",
            "tooltipColor": "rgba(253, 185, 49, 1)",
            "playlist": false,
            "durationColor": "rgba(255, 255, 255, 1)",
            "play": true,
            "fastForward": true,
            "progressColor": "rgba(253, 185, 49, 1)",
            "timeBorder": "0px solid rgba(0, 0, 0, 0.3)",
            "volume": true,
            "scrubber": true,
            "builtIn": false,
            "volumeBorder": "1px solid rgba(128, 128, 128, 0.7)",
            "margins": [2, 6, 2, 12]
        }
    },
    "playerId": "player",
    "playlist": [{
        "scaling": "orig",
        "autoPlay": true,
        "urlResolvers": "cluster",
        "bufferLength": 6,
        "autoBuffering": true,
        "url": "/2009/TOYS/TOYS2009_2.flv"
    }]
}

在该配置中，您将看到类似以下内容：

"hosts": ["http://cdn.sirecam.com", "http://d103cgplnnab87.cloudfront.net", "http://s3.sirecam.com", "http://vdo.sirecam.com"],

它包含它应该提供视频的主机。因此，在http://www.sirecam.com/sales/Tattersalls_October_Yearling_Sale/2009中，您将看到路径为/2009/TOYS/TOYS2009_2.flv，如果您播放并尝试从这些主机加载视频，所有这些都可能工作：

• http://cdn.sirecam.com/2009/TOYS/TOYS2009_2.flv
• http://d103cgplnnab87.cloudfront.net/2009/TOYS/TOYS2009_2.flv
• http://s3.sirecam.com/2009/TOYS/TOYS2009_2.flv
• http://vdo.sirecam.com/2009/TOYS/TOYS2009_2.flv

如你所见，这是一个调查问题。然后，您可以用您喜欢的语言(Python?)开发一些脚本来执行这些步骤并下载视频。