ao: initial OpenSL ES support

OpenSL ES is used on Android. At the moment only stereo output is
supported. Two options are supported: 'frames-per-buffer' and
'sample-rate'. To get better latency the user of libmpv should pass
values obtained from AudioManager.getProperty(PROPERTY_OUTPUT_FRAMES_PER_BUFFER)
and AudioManager.getProperty(PROPERTY_OUTPUT_SAMPLE_RATE).

1 files changed, 4 insertions, 0 deletions

diff --git a/wscript b/wscript
index bf4da47a1f..13d739e221 100644
--- a/wscript
+++ b/wscript
@@ -556,6 +556,10 @@ audio_output_features = [
         'func': check_pkg_config('openal', '>= 1.13'),
         'default': 'disable'
     }, {
+        'name': '--opensles',
+        'desc': 'OpenSL ES audio output',
+        'func': check_statement('SLES/OpenSLES.h', 'slCreateEngine', lib="OpenSLES"),
+    }, {
         'name': '--alsa',
         'desc': 'ALSA audio output',
         'func': check_pkg_config('alsa', '>= 1.0.18'),