webm Encoder
Designed for HTML5, webm uses open source encoders AV1, or VP9 for video and Opus for audio.
Extension: .webm
Compression Options
A quality slider chooses the encoding quality, or bit rate, the combo below the slider offers 4 types of encoding:
- Constant Bit Rate a fixed bit rate is used through out the encoding,
- Average Bit Rate like Constant Bit Rate except there is some encoding flexibility, on difficult parts a higher bit rate is used, overall though the bit rate averages out to the requested value,
- Constant Quality a desired quality achieved throughout the encoding process, by varying the bit rate, this is the recommended mode for most people.
- Lossless encodes the video without loss of quality, expect the end files to be large, test on players to ensure compatibility.