track
英[træk] 美[træk]
n. Path, trail; trace, trace; track, track; policy, route
vt. Track; track; monitor, monitor
vi. Advance along the track; go along a road, travel; be in a queue
html5<track> tag syntax
Function: The <track> tag specifies an external text track for media such as video elements.
is used to specify subtitle files or other files containing text that are visible when the media is played.
Parameters:
| Properties | Value | Description |
| default | default | Specifies that this track is the default if no track is selected. |
| kind | captions chapters descriptions metadata subtitles | indicates what text type the track belongs to. |
| label | label | The label or title of the track. |
| src | url | The URL of the track. |
| srclang | language_code | The language of the track. This attribute is required if the kind attribute value is "subtitles". |
html5<track> tag example
<video width="320" height="240" controls="controls"> <source src="forrest_gump.mp4" type="video/mp4" /> <source src="forrest_gump.ogg" type="video/ogg" /> <track kind="subtitles" src="subs_chi.srt" srclang="zh" label="Chinese"> <track kind="subtitles" src="subs_eng.srt" srclang="en" label="English"> </video>