Problem description
I am unable to drag the slider on the progress bar to a specified point in time for an MP4 or FLV video in the Flash player.
Troubleshooting
To drag the slider on the progress bar to a specified point in time for an MP4 or FLV video in the Flash player, make sure that the video data of the specified point in time can be obtained from Alibaba Cloud CDN. When the slider on the progress bar is dragged, the player sends a request that contains the time range information to Alibaba Cloud CDN. After Alibaba Cloud CDN receives such a request, it returns the requested video data. To implement this feature, the following conditions must be met:
- The index information must be contained in the file header.
For example, the timestamp of an MP4 video and meta information of an FLV video must be contained in the file header. After the player parses the index information, the player obtains data points of the time range specified by the drag operation and sends a request containing the time range information to Alibaba Cloud CDN.
Note You can view the index information or meta information by using video parameter check tools such as MediaInfo. - Alibaba Cloud CDN supports requests that contain the time range or byte range information.
For more information about how to enable this feature in the Alibaba Cloud CDN console, see Configure video seeking.