A generic file container format for storing data in tagged chunks, primarily used for audio and video. Developed by Microsoft and IBM in the early 1990s, RIFF organizes and stores data in chunks, with each chunk containing a specific type of data. This structure allows it to be adapted for various types of multimedia data, enabling the creation of new file formats as needed.
Chunk Structure
RIFF files are organized into chunks, with each chunk containing a specific type of data. This structure allows for efficient storage and retrieval of multimedia data.
- Chunk Header: Each chunk begins with a header that identifies the chunk type and size.
- Data: The actual data stored in the chunk, which can vary in type and size depending on the chunk type.
Applications
RIFF is used in several well-known multimedia file formats, including:
- Waveform Audio File Format (WAV): RIFF is used to structure and store audio data along with other information such as sample rate, bit depth, and the number of channels.
- Audio Video Interleave (AVI) Format: RIFF is used as the basis for this video file format, allowing for the storage of both audio and video data.
Flexibility
The RIFF structure is highly flexible, allowing it to be adapted for various types of multimedia data. This flexibility has enabled the creation of new file formats as needed, making RIFF a versatile and widely used container format.