Media content capture and presentation

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing event-specific media content. One of the methods includes receiving, by a social messaging platform, an indication of a message by a user of client software on a first user device; receiving a first location of the first user equipment from the first user equipment; providing one or more topics specific to events temporally associated with the first location to the first user device; receiving a message for publication on the social messaging platform, the message comprising (i) a topic selected from the one or more topics and (ii) user-selected media content; and adding the message to one or more streams of the social messaging platform. 用于提供事件特定的媒体内容的方法、系统以及装置，包括在计算机存储介质上编码的计算机程序。方法中的一种方法包括：由社交消息传送平台接收由第一用户设备上的客户端软件的用户对消息的指示；从第一用户设备接收第一用户设备的第一位置；向第一用户设备提供特定于在时间上与第一位置相关联的事件的一个或多个话题；接收用于在社交消息传送平台上发布的消息，消息包括(i)从一个或多个话题中选择的话题和(ii)用户选择的媒体内容；以及将消息添加至社交消息传送平台的一个或多个流。