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dav1d is an AV1 Decoder

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+# dav1d
+
+**dav1d** is a new **AV1** cross-platform **D**ecoder, open-source, and focused on speed and correctness.
+
+The canonical repository URL for this repo is https://code.videolan.org/videolan/dav1d
+
+## Goal and Features
+
+The goal of this project is to provide a decoder for **most platforms**, and achieve the **highest speed** possible to overcome the lack of AV1 hardware decoder.
+
+It aims to support all features from AV1, including all subsampling and bit-depth parameters.
+
+In the future, this project will host simple tools or simple wrappings *(like, for example, an MFT transform)*.
+
+## License
+
+**dav1d** is released under a very liberal license, a contrario from the other VideoLAN projects, so that it can be embedded anywhere, including non-open-source software; or even drivers, for hybrid decoders.
+
+The reasoning behind this decision is the same as for libvorbis, [RMS on vorbis](https://lwn.net/2001/0301/a/rms-ov-license.php3).
+
+# Roadmap
+
+The plan is the folllowing:
+
+1. Complete C implementation of the decoder,
+2. Provide a usable API,
+3. Port to most platforms,
+4. Make it fast, by writing asm.
+
+By the end of 2018, we hope to have a completely usable version that will be faster than any other software open source implementation.
+
+# Contribute
+
+Currently, we are looking for help from:
+- C developers,
+- asm developers,
+- platform-specific developers.
+
+Our contributions guidelines are strict. We want to build a coherent codebase to simplify maintenance and achieve the highest possible speed.
+
+Notably, the codebase is in pure C and asm.
+
+We are on IRC, on the **#dav1d** channel on *Freenode*.
+
+See the [contributions document](CONTRIBUTING.md).
+
+## CLA
+
+There is no CLA.
+
+People will keep their copyright and their authorship rights.
+
+VideoLAN will only have the collective work rights.
+
+## CoC
+
+The [VideoLAN Code of Conduct](https://wiki.videolan.org/CoC) applies to this project.
+
+# Compile
+
+1. Install [Meson](https://mesonbuild.com/)
+2. Run `meson build`
+
+# Support
+
+This project is partially funded by the *Alliance for Open Media*/**AOM** and is supported by TwoOrioles and VideoLabs.
+
+These 2 companies can provide support and integration help, should you need it.
+
+
+# FAQ
+
+## Why do you not improve libaom rather than starting a new project?
+
+- We believe that libaom is a very good library. It was however developed for research purposes during AV1 design.  
+We think that an implementation written from scratch can achieve faster decoding, in the same way that *ffvp9* was faster than *libvpx*.
+
+## Is dav1d a recursive acronym?
+
+- Yes.
+
+## Can I help?
+
+- Yes. See the [contributions document](CONTRIBUTING.md).
+
+## I am not a developer. Can I help?
+
+- Yes. We need testers, bug reporters, and documentation writers.
+
+## What about the AV1 patent license?
+
+This project is an implementation of a decoder. It gives you no special rights on the AV1 patents.
+
+Please read the [AV1 patent license](doc/PATENTS) that applies to the AV1 specification and codec.