libvpx-1.8.1

#### Beyond Linux® From Scratch (systemd Edition) - Version 9.0

### Chapter 42. Multimedia Libraries and Drivers

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# libvpx-1.8.1

## Introduction to libvpx

This package, from the WebM project, provides the reference implementations of the VP8 Codec, used in most current html5 video, and of the next-generation VP9 Codec.

This package is known to build and work properly using an LFS-9.0 platform.

### Package Information

- Download (HTTP): https://github.com/webmproject/libvpx/archive/v1.8.1/libvpx-1.8.1.tar.gz

- Download MD5 sum: 17b1b9278b5066ecd1a76e82266ecdf9

- Download size: 2.8 MB

- Estimated disk space required: 52 MB

- Estimated build time: 0.5 SBU (using parallelism=4)

### libvpx Dependencies

#### Required

yasm-1.3.0 or NASM-2.14.02, and Which-2.21 (so configure can find yasm)

#### Optional

Doxygen-1.8.16 and PHP-7.3.8 (to build the documentation)

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/libvpx

## Installation of libvpx

Install libvpx by running the following commands:

    sed -i 's/cp -p/cp/' build/make/Makefile &&

    mkdir libvpx-build            &&
    cd    libvpx-build            &&

    ../configure --prefix=/usr    \
                 --enable-shared  \
                 --disable-static &&
    make

This package does not come with a test suite.

Now, as the `root` user:

    make install

## Command Explanations

sed ... : This command corrects ownership and permissions of installed files.

mkdir libvpx-build && cd libvpx-build: The libvpx developers recommend building in a dedicated build directory.

`--disable-vp8`: This switch prevents building of VP8 codec support.

`--disable-vp9`: This switch prevents building of VP9 codec support.

`--disable-static`: This switch prevents installation of static versions of the libraries.

## Contents

Installed Programs: vpxdec and vpxenc
Installed Libraries: libvpx.so
Installed Directories: /usr/include/vpx

### Short Descriptions

vpxdec | is the WebM Project VP8 and VP9 decoder.
vpxenc | is the WebM project VP8 and VP9 encoder.
`libvpx.so` | provides functions to use the VP8 and VP9 video codecs.

Last updated on 2019-08-24 01:04:32 -0700

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