gnu: mlt: Fix compilation against glibc 2.26.
* gnu/packages/video.scm (mlt)[source](snippet, modules): New fields.
gnu: libx264: Update to 20180219-2245.
* gnu/packages/video.scm (libx264): Update to 20180219-2245.
gnu: ffmpeg@2.8: Update to 2.8.14.
* gnu/packages/video.scm (ffmpeg-2.8): Update to 2.8.14.
gnu: youtube-dl: Update to 2018.02.11.
* gnu/packages/video.scm (youtube-dl): Update to 2018.02.11.
Merge branch 'master' into core-updates
gnu: mpv: Update to 0.28.2.
* gnu/packages/video.scm (mpv): Update to 0.28.2.
Merge branch 'master' into core-updates
gnu: mpv: Enable Vulkan support.
* gnu/packages/video.scm (mpv)[inputs]: Add shaderc and vulkan-icd-loader.
gnu: libdvdnav@4: Remove variable.
* gnu/packages/video.scm (libdvdnav@4): Remove variable.
gnu: libdvdnav: Update to 6.0.0.
* gnu/packages/video.scm (libdvdnav): Update to 6.0.0.
gnu: libdvdread: Update to 6.0.0.
* gnu/packages/video.scm (libdvdread): Update to 6.0.0.
gnu: x265: Update to 2.6.
* gnu/packages/video.scm (x265): Update to 2.6.
gnu: ffmpeg: Update to 3.4.2.
* gnu/packages/video.scm (ffmpeg): Update to 3.4.2.
Merge branch 'master' into core-updates
gnu: Update copyright line.
* gnu/packages/video.scm: Update copyright line for commit 171c764.
gnu: mpv: Update to 0.28.1 [fixes CVE-2018-6360].
* gnu/packages/video.scm (mpv): Update to 0.28.1.
Merge branch 'master' into core-updates
gnu: youtube-dl: Update to 2018.02.08.
* gnu/packages/video.scm (youtube-dl): Update to 2018.02.08.