ci: bump image tags so subprojects get updated

[platform/upstream/gstreamer.git] / README.md

diff --git a/README.md b/README.md
index 270c570..9d5d79b 100644 (file)
--- a/README.md
+++ b/README.md
@@ -38,9 +38,7 @@ You can find [instructions for Windows below](#windows-prerequisites-setup).
 
 ### Install meson and ninja
 
-Meson 0.52 or newer is required.
-
-For cross-compilation Meson 0.54 or newer is required.
+Meson 0.59 or newer is required.
 
 On Linux and macOS you can get meson through your package manager or using:
 
@@ -55,6 +53,20 @@ binary in your PATH.
 
 You can find [instructions for Windows below](#windows-prerequisites-setup).
 
+
+On macOS, you might need to execute "Install Certificates.command" from the
+Python folder in the user Applications folder:
+
+```
+$ /Applications/Python\ 3.*/Install\ Certificates.command
+```
+
+Otherwise you will get this error when downloading meson wraps:
+
+```
+urllib.error.URLError: urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed
+```
+
 ### Build GStreamer and its modules
 
 You can get all GStreamer built running:
@@ -129,6 +141,30 @@ the build files to find `libmfx`.
 The plugin will be automatically enabled if possible, but you can ensure it by
 passing `-Dbad=enabled -Dgst-plugins-bad:msdk=enabled` to `meson`.
 
+### Building plugins with (A)GPL-licensed dependencies
+
+Some plugins have GPL- or AGPL-licensed dependencies and will only be built
+if you have explicitly opted in to allow (A)GPL-licensed dependencies by
+passing `-Dgpl=enabled` to Meson.
+
+List of plugins with (A)GPL-licensed dependencies (non-exhaustive) in gst-plugins-bad:
+ - dts (DTS audio decoder plugin)
+ - faad (Free AAC audio decoder plugin)
+ - iqa (Image quality assessment plugin based on dssim-c)
+ - mpeg2enc (MPEG-2 video encoder plugin)
+ - mplex (audio/video multiplexer plugin)
+ - ofa (Open Fingerprint Architecture library plugin)
+ - resindvd (Resin DVD playback plugin)
+ - x265 (HEVC/H.265 video encoder plugin)
+
+List of plugins with (A)GPL-licensed dependencies (non-exhaustive) in gst-plugins-ugly:
+ - a52dec (Dolby Digital (AC-3) audio decoder plugin)
+ - cdio (CD audio source plugin based on libcdio)
+ - dvdread (DVD video source plugin based on libdvdread)
+ - mpeg2dec (MPEG-2 video decoder plugin based on libmpeg2)
+ - sidplay (Commodore 64 audio decoder plugin based on libsidplay)
+ - x264 (H.264 video encoder plugin based on libx264)
+
 ### Static build
 
 Since *1.18.0* when doing a static build using `--default-library=static`, a
@@ -183,7 +219,7 @@ All the selected features will be registered into a dedicated `NULL` plugin name
 
 This will cause the features/plugins that are not registered to not be included in the final gstreamer-full library.
 
-This is an experimental feature, backward uncompatible changes could still be
+This is an experimental feature, backward incompatible changes could still be
 made in the future.
 
 # Development environment
@@ -212,6 +248,9 @@ An external script can be run in development environment with:
 ./gst-env.py external_script.sh
 ```
 
+For more extensive documentation about the development environment go to [the
+documentation](https://gstreamer.freedesktop.org/documentation/installing/building-from-source-using-meson.html).
+
 ## Custom subprojects
 
 We also added a meson option, `custom_subprojects`, that allows the user
@@ -362,12 +401,6 @@ Note that Meson is written entirely in Python, so you can also run it as-is
 from the [git repository](https://github.com/mesonbuild/meson/) if you want to
 use the latest master branch for some reason.
 
-**ARM64 native only**: You might need
-[native upstream ARM64 support fix](https://github.com/mesonbuild/meson/pull/7432)
-which is expected to be a part of Meson 0.55.1.
-If your Meson package version which was installed via `pip3` is lower than 0.55.1,
-then you need to use [the latest master branch](https://github.com/mesonbuild/meson/).
-
 ### Running Meson on Windows
 
 At present, to build with Visual Studio, you need to run Meson from inside the
@@ -407,13 +440,13 @@ git clone https://github.com/mesonbuild/meson.git
 ```
 BUILDDIR=$PWD/winebuild/
 export WINEPREFIX=$BUILDDIR/wine-prefix/ && mkdir -p $WINEPREFIX
-# Setting the prefix is mandatory as it is used to setup symlinks during uninstalled development
+# Setting the prefix is mandatory as it is used to setup symlinks within the development environment
 meson/meson.py $BUILDDIR --cross-file meson/cross/linux-mingw-w64-64bit.txt -Dgst-plugins-bad:vulkan=disabled -Dorc:gtk_doc=disabled --prefix=$BUILDDIR/wininstall/ -Djson-glib:gtk_doc=disabled
 meson/meson.py install -C $BUILDDIR/
 ```
 
 > __NOTE__: You should use `meson install -C $BUILDDIR`  each time you make a change
-> instead of the usual `ninja -C build` as the environment is not uninstalled.
+> instead of the usual `ninja -C build` as this is not in the development environment.
 
 #### The development environment