app-emulation/wine-proton: always pull gst-plugins-libav+bad

Not overly worth a revbump+rebuild over, but want to propagate
it over time. Hard-dependency also ensures USE=abi_x86_32 is
properly set where needed.

Had an application crash mentioning that h264 support was missing
despite gst-plugins-libav was installed which resolved itself after
installing -bad. Was formerly under the impression -libav was enough
for that but maybe(?) it's needed for h264parser or so before it can
use -libav or -openh264 (possibly only with the way wine is using it).

...and then sometime seen users confused by similar issues despite
"it works with real Proton".

Regardless of if -bad is really needed for h264 or not, real Proton
does ship with -base + -good (provided by -meta), -libav, -bad (with
auto_features=disabled + videoparsers/hls/mpegtsdemux=enabled), and
-dav1d -- so, to ensure things work as expected, let's just hard depend
on everything except -dav1d (from gst-plugins-rs, currently unpackaged
and it would also be an unpopular default given the rust requirement --
hopefully av1 works through libav+ffmpeg[dav1d] but I have not tested).

This may annoy more miminalistic users that didn't need these for their
use case, but would rather not keep this as optfeature or gated behind
USE and instead stay closer to upstream Proton. IMO minimalist users
should use wine-vanilla instead which offers more control in general,
wine-proton is more meant as a "should mostly just work" alternative
for games (e.g. wine-proton doesn't allow disabling opengl/vulkan too,
not tried recently but it didn't even build when vulkan was disabled).

Could take it further and match what Proton enables in each plugins set
like pull gst-plugins-vpx/mpg123/hls among others but believe most of
these should work through -libav and default ffmpeg USE and they may be
redundant (or at least for decoding, games rarely need to do encoding).
Believe Proton enables these given ffmpeg is shipped separately and it
serves as a fallback if missing.

Not depending on e.g. -meta[ffmpeg] as this does nothing but annoy
users into setting the USE. Arguably could drop -meta entirely and
depend on -good but it doesn't hurt to keep to pull additional things
depending on global USE.

Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

app-emulation/wine-proton/files/README.gentoo

@@ -42,10 +42,6 @@ Many other proton-specific improvements / fixes are always enabled, and
 some game-specific quirks are auto-enabled as needed (can see a few from
 running winecfg).
 
-If have audio/video playback issues, note to look at GStreamer plugins.
-Notably USE=ffmpeg on media-plugins/gst-plugins-meta which Proton normally
-provide by default.
-
 ---
 
 If have other Wine variants installed, remember to either use `eselect wine`

app-emulation/wine-proton/wine-proton-10.0.2d.ebuild

@@ -102,7 +102,11 @@ RDEPEND="
 		app-emulation/wine-gecko:${WINE_GECKO}[${WINE_USEDEP}]
 		wow64? ( app-emulation/wine-gecko[abi_x86_32] )
 	)
-	gstreamer? ( media-plugins/gst-plugins-meta:1.0[${WINE_USEDEP}] )
+	gstreamer? (
+		media-libs/gst-plugins-bad:1.0[${WINE_USEDEP}]
+		media-plugins/gst-plugins-libav:1.0[${WINE_USEDEP}]
+		media-plugins/gst-plugins-meta:1.0[${WINE_USEDEP}]
+	)
 	mono? ( app-emulation/wine-mono:${WINE_MONO} )
 	perl? (
 		dev-lang/perl

app-emulation/wine-proton/wine-proton-8.0.5c.ebuild

@@ -84,7 +84,11 @@ RDEPEND="
 	${WINE_COMMON_DEPEND}
 	app-emulation/wine-desktop-common
 	gecko? ( app-emulation/wine-gecko:${WINE_GECKO}[${MULTILIB_USEDEP}] )
-	gstreamer? ( media-plugins/gst-plugins-meta:1.0[${MULTILIB_USEDEP}] )
+	gstreamer? (
+		media-libs/gst-plugins-bad:1.0[${MULTILIB_USEDEP}]
+		media-plugins/gst-plugins-libav:1.0[${MULTILIB_USEDEP}]
+		media-plugins/gst-plugins-meta:1.0[${MULTILIB_USEDEP}]
+	)
 	mono? ( app-emulation/wine-mono:${WINE_MONO} )
 	perl? (
 		dev-lang/perl

app-emulation/wine-proton/wine-proton-9.0.4-r2.ebuild

@@ -84,7 +84,11 @@ RDEPEND="
 		app-emulation/wine-gecko:${WINE_GECKO}[${WINE_USEDEP}]
 		wow64? ( app-emulation/wine-gecko[abi_x86_32] )
 	)
-	gstreamer? ( media-plugins/gst-plugins-meta:1.0[${WINE_USEDEP}] )
+	gstreamer? (
+		media-libs/gst-plugins-bad:1.0[${WINE_USEDEP}]
+		media-plugins/gst-plugins-libav:1.0[${WINE_USEDEP}]
+		media-plugins/gst-plugins-meta:1.0[${WINE_USEDEP}]
+	)
 	mono? ( app-emulation/wine-mono:${WINE_MONO} )
 	perl? (
 		dev-lang/perl

app-emulation/wine-proton/wine-proton-9999.ebuild

@@ -102,7 +102,11 @@ RDEPEND="
 		app-emulation/wine-gecko:${WINE_GECKO}[${WINE_USEDEP}]
 		wow64? ( app-emulation/wine-gecko[abi_x86_32] )
 	)
-	gstreamer? ( media-plugins/gst-plugins-meta:1.0[${WINE_USEDEP}] )
+	gstreamer? (
+		media-libs/gst-plugins-bad:1.0[${WINE_USEDEP}]
+		media-plugins/gst-plugins-libav:1.0[${WINE_USEDEP}]
+		media-plugins/gst-plugins-meta:1.0[${WINE_USEDEP}]
+	)
 	mono? ( app-emulation/wine-mono:${WINE_MONO} )
 	perl? (
 		dev-lang/perl