ARM has released a sample implementation of OpenMAX DL, which can be freely downloaded from the ARM website. This is an ANSI C sample implementation of the functions described in the OpenMAX DL v1.0.1 API specification. All of the mandatory DL functions are supplied. None of the optional DLx API functions described in Appendix A of the specification are supplied. This implementation attempts to be as mathematically accurate to the OpenMAX definition as possible, using floating-point code where necessary. It is not intended to reflect the expected performance or code size of an optimized (integer only) implementation.
The OpenMAX DL (Development Layer) standardizes access to a comprehensive set of low-level media processing primitives used extensively in audio, video and imaging applications. As well as general purpose media processing functions, OpenMAX DL also contains APIs specifically targeted for the implementation of codecs such as MPEG-4, H.264, MP3, AAC and JPEG.
ARM is also developing highly optimized OpenMAX DL libraries for the ARMv6 SIMD and ARMv7/NEON architectures, which are being in hand-coded in ARM assembly. These libraries will be available for purchase by silicon vendors who can use them royalty free and redistribute them for use on their silicon.