In the HTML5 video element, you specify a poster image to be displayed instead of the video in versions of Safari that don’t support WebM. Here, you might be able to get away with a still image for those few visitors who don’t have the option to update their Safari browser. Animated GIFs are often used to support a written statement. However, there is potentially one exception. An exception is perhaps WebM instead of a GIF animations
#HANDBRAKE VIDEO MP4#
A good rule of thumb is, if the video needs to be accessible to most people, an MP4 container with H.264 encoding is the sensible choice.
#HANDBRAKE VIDEO INSTALL#
if the user has an older iPad or iPhone, they can’t just install Chrome or Firefox. Apple doesn’t actually allow any other “browser rendering engines” than Apple’s own, i.e. The problems at the moment are that H.265 only works in Safari, and WebM does not work in older versions of Safari. These formats potentially compress even better than H.264. Summary – Format: MP4, Web Optimized Dimensions – No changes Filters: Off Video – Video Codec: H.264, Encoder Preset: Slow, Encoder Tune: Still Image, Avg Bitrate: 360, 2-Pass Encoding: on Audio – Bitrate: 40, Mixdown: Mono Example of HandBrake settings used for screencast compression It’s too early for H.265 and WebM In short, we are now using an MP4 container with H.264 encoder, no scaling or filters, H.264 encoder tuned to Still Image at a low bitrate of 360 kbps and 2-Pass encoding. When we reduce the file size by 66%, we use correspondingly less energy during the data transfer. There are many of them and they all use power. Faster pages rank better on search engines, especially for mobile users – that’s no longer a secret.ĭata transfers are not free. Lighter files load faster at the user and eat up less of the mobile user’s data plan. Well, that’s three things at once! Nevertheless, this is what is achieved by optimising the media on the website, and this is especially true for video, which is some of the heaviest content we can serve. Video fileįile sizes before and after optimization A better user experience, better SEO and a greener Internet In other words – if we reduce the video bitrate to ⅓, the compressed video takes up about ⅓ of the original. The 420 kbps, or kilobits per second, can be multiplied by the length of the video to give a kilobit number, which for convenience is given in megabytes.
Komprimeret video – 420 kbps Bitrate and file size are linkedīitrate and final file size are closely related.
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