Reducing the size of video files encoded in the MP4 format to facilitate their transmission via electronic mail is a common requirement. Email systems typically impose limitations on the size of attachments, making it necessary to decrease the file size of videos before they can be successfully sent. For instance, a high-resolution video recording of a conference presentation may need to be significantly compressed to meet a 25MB email attachment limit.
The necessity of file size reduction stems from several factors, including bandwidth constraints, recipient mailbox capacity, and transmission time. Sending large video files can consume significant bandwidth, leading to slow upload and download speeds, particularly for users with limited internet access. Furthermore, overflowing recipient mailboxes can cause delivery failures and inconvenience. Historically, compression techniques have evolved alongside advancements in video encoding and network infrastructure to address these challenges, enabling efficient distribution of multimedia content.