Listing 1-3 Specifying multiple audio sourcesĪgain, the browser picks the first source it can handle. Listing 1-3 is a simple example of using multiple sources for an audio file. A browser that can play neither Ogg nor AAC might still be able to play the WAVE file. A browser that cannot play AAC but can play Ogg plays the Ogg file. For example, if you have an AAC audio file, an Ogg Vorbis audio file, and a WAVE audio file, listed in that order, Safari plays the AAC file. The browser chooses the first listed source that it thinks it can play. List the alternate media sources in the order of most desirable to least desirable. Instead of using the src attribute in the media element itself, follow the or tag with one or more elements, prior to the closing tag. The browser iterates through them until it finds one it can play or runs out of sources. Fortunately, the and elements allow you to list as many elements as you like. Not all types of audio and video can play on all devices and browsers.
Otherwise the user has no way to play the movie.
Very basic audio player mac movie#
If you do not set the controls attribute, you must either set the autoplay attribute, create a controller using JavaScript, or play the movie programmatically from JavaScript. (You cannot set the attribute to false explicitly in HTML-you set it to false implicitly by leaving the attribute out.) In cases where it is crucial that the bottom of the video never be obscured, omit the controls attribute. The controller is not normally visible when the movie is playing-it appears only when the movie is paused, when the user touches the video, or when the mouse pointer hovers over the playing movie. In Safari, the default video controller is slightly translucent and is overlaid on the bottom of the video. If neither is specified, the video is displayed at its native size. If both height and width are specified, the video is presented at that size. If only the height or width parameter is specified, the video is scaled up or down to that height or width while maintaining the native aspect ratio of the movie. In Safari on the desktop, the movie metadata is downloaded automatically whenever possible, so the native video size is used as the default.
On iPhone or iPod touch, the video plays in fullscreen mode once the user initiates it, and the default space is allocated to a placeholder on the webpage. On iPad, the video currently plays in this default space. If no height or width is specified, a default size of 150 x 300 pixels is allocated in the webpage.
In Safari on iOS, the native size of the video is unknown until the user initiates a download. There are several ways you can control media playback directly in HTML by setting attributes appropriately.
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