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cmake
doc Initial commit of open sourced version of ndash. Apr 19, 2017
examples/sdl_player Add explicit channel layout translation between ndash and ffmpeg. Oct 13, 2017
ndash Update build to work on more recent Debian/Ubuntu systems. Oct 13, 2017
third_party/chromium Update build to work on more recent Debian/Ubuntu systems. Oct 13, 2017
tools/streamgen Initial commit of open sourced version of ndash. Apr 19, 2017
.gitignore Initial commit of open sourced version of ndash. Apr 19, 2017
CMakeLists.txt Update build to work on more recent Debian/Ubuntu systems. Oct 13, 2017
CONTRIBUTING.md
LICENSE Initial commit of open sourced version of ndash. Apr 19, 2017
README.md

README.md

libndash README

This is not an official Google product.

libndash

libndash is a C++ library that provides all the functionality one would need to build an adaptive streaming media player (not including decoding/rendering frames to a display). It provides the following functionality:

  • download and parse DASH manifests
  • download segments from fragmented mp4 audio/video streams
  • parse video/audio frames from segments
  • deliver frames to a client decoder
  • switch to different representations based on network conditions
  • notify the client when protected content is encountered
  • provide seek/jump and trick play functionality (forward/backward)

This project is based on a translation of ExoPlayer v1 source files (https://github.com/google/ExoPlayer/tree/release-v1) with non-DASH related functionality removed. It is best suited for environments that require a native code solution for adaptive streaming.

sdl_player

sdl_player is a sample media player written on top of libndash. It demonstrates how to implement the final steps of decoding and rendering frames delivered by libndash using ffmpeg/SDL/Alsa.

Libraries

For Debian-type systems, the following packages should be installed:

  • libevent-dev
  • libmodpbase64-dev
  • libpthread-stubs0-dev
  • libxml2-dev
  • libcurl4-gnutls-dev
  • libsdl2-dev
  • libsdl2-mixer-dev
  • libbz2-dev

Copy and paste:

apt-get install libevent-dev libmodpbase64-dev libpthread-stubs0-dev libxml2-dev
libcurl4-gnutls-dev libsdl2-dev libsdl2-mixer-dev libbz2-dev

If you are using a recent Debian/Ubuntu with an up to date ffmpeg:

  • libavcodec-dev
  • libavdevice-dev
  • libavfilter-dev
  • libavformat-dev
  • libavresample-dev
  • libavresample3
  • libavutil-dev
  • libswresample-dev
  • libswscale-dev
  • libgoogle-glog-dev
  • libgflags-dev

Copy and paste:

apt-get install libavcodec-dev libavdevice-dev libavfilter-dev libavformat-dev libavresample-dev
libavresample3 libavutil-dev libswresample-dev libswscale-dev libgoogle-glog-dev libgflags-dev

Otherwise you will need to install the following from source:

To build:

From the top directory:

cmake . make -jX # where X is the number of cores on your machine or around there

To run the unit tests:

From the top directory:

./build/ndash_unittests --test_data_path=pwd/ndash/src

License

This software is licensed under Apache Software License, Version 2.0