Aviowrite

Aviowrite is a term used in some multimedia software libraries to denote the operation of writing a sequence of bytes to an output stream or container, typically in the context of AVI or other video formats. In practice, aviowrite is implemented as a function or method that takes a destination I/O handle (such as an AVIOContext or a similar abstraction), a data buffer, and a length, and returns the number of bytes written or a negative error code. It usually participates in buffered I/O, handles partial writes, and propagates I/O errors to the caller.

In common multimedia frameworks, the exact name aviowrite may be used informally or as a wrapper around a lower-level write primitive. The closest standardized function in widely used libraries is avio_write, which writes to an AVIOContext. Aviowrite-like interfaces are typically described as writing data to a stream or container, which may be an AVI file, a network stream, or another output target supported by the library. Typical usage involves opening the destination, optionally writing headers, writing payload data, flushing as needed, and finally closing the destination.

Behavior and considerations: implementations may differ in blocking versus non-blocking behavior, handling of partial writes, and threading guarantees. Callers should be prepared to handle partial writes and retry or report errors accordingly. The function often integrates with higher-level container logic, such as updating headers or indices after data is written.

Note that aviowrite is not a universally standardized function name. In many codebases, the equivalent operation is performed by avio_write or by a project-specific write routine. When examining code, consult the library’s documentation for the exact write API and its requirements. See also avio_write, AVIOContext, and related I/O interfaces.