mpv: add rate guards to the opensles ao

Upstream "Wilhelm" (the Android OpenSLES implementation) supports
only 8000 <= rate <= 192000. Make sure mpv resamples the audio
when necessary.

packages/mpv/build.sh

@@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="Command-line media player"
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_MAINTAINER="@termux"
 TERMUX_PKG_VERSION=0.33.1
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SRCURL=https://github.com/mpv-player/mpv/archive/v${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_SHA256=100a116b9f23bdcda3a596e9f26be3a69f166a4f1d00910d1789b6571c46f3a9
 TERMUX_PKG_AUTO_UPDATE=true

packages/mpv/sles_rate.patch

@@ -0,0 +1,13 @@
+diff --git a/audio/out/ao_opensles.c b/audio/out/ao_opensles.c
+index 40ab5324b5..aef78c2dec 100644
+--- a/audio/out/ao_opensles.c
++++ b/audio/out/ao_opensles.c
+@@ -111,6 +111,8 @@ static int init(struct ao *ao)
+ 
+     // This AO only supports two channels at the moment
+     mp_chmap_from_channels(&ao->channels, 2);
++    // Upstream "Wilhelm" supports only 8000 <= rate <= 192000
++    ao->samplerate = MPMIN(MPMAX(ao->samplerate, 8000), 192000);
+ 
+     CHK(slCreateEngine(&p->sl, 0, NULL, 0, NULL, NULL));
+     CHK((*p->sl)->Realize(p->sl, SL_BOOLEAN_FALSE));