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Developer Overview

Show Contents

  • WebM Repositories
    • libvpx: VP8/VP9 Codec SDK
    • libwebm: WebM File Parser
    • webm-tools: Alpha-channel, Encryption, and Streaming-related tools
    • webmdshow: DirectShow Filters Source
    • webmquicktime: QuickTime Components Source
    • webminspector: WebM File Inspector
    • vp8-test-vectors: Decoder Test Vectors
    • udpsample: UDP Sample Code
    • bitstream-guide: VP8 Data Format
  • WebP Repositories
    • libwebp: WebP Image Library
    • libwebp-test-data: dwebp Validation Tool
  • Set-up Your Machine
  • Start Hacking
  • Contribute

We use the Git version control software. If you are unfamiliar with Git, the fastest way to get the code is to download one of the versioned snapshots. To learn about Git, we recommend you start with the documentation.

WebM Repositories

Also see: Continuous Integration

libvpx: VP8/VP9 Codec SDK

Task URL
clone https://chromium.googlesource.com/webm/libvpx
push https://chromium-review.googlesource.com/webm/libvpx
browse https://chromium.googlesource.com/webm/libvpx/
mirror https://github.com/webmproject/libvpx/

Building on Windows

Building the source code from git requires that you be familiar with and have installed a Unix-like environment such as Cygwin or MSYS.

libwebm: WebM File Parser

Task URL
clone https://chromium.googlesource.com/webm/libwebm
push https://chromium-review.googlesource.com/webm/libwebm
browse https://chromium.googlesource.com/webm/libwebm
mirror https://github.com/webmproject/libwebm/

webm-tools: Alpha-channel, Encryption, and Streaming-related tools

Task URL
clone https://chromium.googlesource.com/webm/webm-tools
push https://chromium-review.googlesource.com/webm/webm-tools
browse https://chromium.googlesource.com/webm/webm-tools
mirror https://github.com/webmproject/webm-tools/

webmdshow: DirectShow Filters Source

Task URL
clone https://chromium.googlesource.com/webm/webmdshow
push https://chromium-review.googlesource.com/webm/webmdshow
browse https://chromium.googlesource.com/webm/webmdshow
mirror https://github.com/webmproject/webmdshow/

webmquicktime: QuickTime Components Source

Task URL
clone https://chromium.googlesource.com/webm/webmquicktime
push https://chromium-review.googlesource.com/webm/webmquicktime
browse https://chromium.googlesource.com/webm/webmquicktime
mirror https://github.com/webmproject/webmquicktime/

webminspector: WebM File Inspector

Dumps all EBML and WebM data in a WebM file to stdout.

Task URL
clone https://chromium.googlesource.com/webm/webminspector
push https://chromium-review.googlesource.com/webm/webminspector
browse https://chromium.googlesource.com/webm/webminspector
mirror https://github.com/webmproject/webminspector/

vp8-test-vectors: Decoder Test Vectors

Used to validate VP8 decoder conformance.

This project is relatively static. Please discuss any proposed commits on codec-devel before submitting.

Task URL
clone https://chromium.googlesource.com/webm/vp8-test-vectors
push https://chromium-review.googlesource.com/webm/vp8-test-vectors
browse https://chromium.googlesource.com/webm/vp8-test-vectors
mirror https://github.com/webmproject/vp8-test-vectors/

udpsample: UDP Sample Code

A simple, unsupported videoconferencing demo application. May require considerable modification to run in your environment.

  • Project description (PDF)
Task URL
clone https://chromium.googlesource.com/webm/udpsample
push https://chromium-review.googlesource.com/webm/udpsample
browse https://chromium.googlesource.com/webm/udpsample
mirror https://github.com/webmproject/udpsample/

bitstream-guide: VP8 Data Format

Text source of RFC 6386, "VP8 Data Format and Decoding Guide"

Task URL
clone https://chromium.googlesource.com/webm/bitstream-guide
push https://chromium-review.googlesource.com/webm/bitstream-guide
browse https://chromium.googlesource.com/webm/bitstream-guide
mirror https://github.com/webmproject/bitstream-guide/

WebP Repositories

libwebp: WebP Image Library

Provides libwebp.so, a library for encoding and decoding WebP image files. See the Google Code site for more information and related tools, as well as the webp-discuss mailing list:

  • https://developers.google.com/speed/webp/
  • https://groups.google.com/a/webmproject.org/group/webp-discuss
Task URL
clone https://chromium.googlesource.com/webm/libwebp
push https://chromium-review.googlesource.com/webm/libwebp
browse https://chromium.googlesource.com/webm/libwebp
mirror https://github.com/webmproject/libwebp/

libwebp-test-data: dwebp Validation Tool

Validates the output of dwebp, via MD5 sum. dwebp is an example utility created by libwebp, above.

Task URL
clone https://chromium.googlesource.com/webm/libwebp-test-data
push https://chromium-review.googlesource.com/webm/libwebp-test-data
browse https://chromium.googlesource.com/webm/libwebp-test-data
mirror https://github.com/webmproject/libwebp-test-data/

Set-up Your Machine

Make sure you have all the build dependencies before trying to build the WebM source code.

Start Hacking

Got your own itch? Great! Want some inspiration? See the roadmap for some projects that we think would be interesting. Talk to us on one of our mailing lists so we have an idea what you're interested in -- maybe you can find a partner!

Contribute

See our page on submitting patches for more information on getting your change peer-reviewed and merged upstream.

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Docs
  • WebM Codec SDK
  • WebM Container Format
  • WebM Encryption
  • VP8 RTP Proposal (Draft)
  • RFC 6386: VP8 Data Format
  • Encoder Examples
  • Wiki
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