[vlc-devel] [PATCH] Add software volume support to iOS audiounit

Felix Paul K├╝hne fkuehne at videolan.org
Sat Feb 3 16:30:42 CET 2018


From: Jernej Fijacko <jernej at jernej.org>

---
 modules/audio_output/audiounit_ios.m | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/modules/audio_output/audiounit_ios.m b/modules/audio_output/audiounit_ios.m
index 7fb2642ad2..83117996ea 100644
--- a/modules/audio_output/audiounit_ios.m
+++ b/modules/audio_output/audiounit_ios.m
@@ -90,8 +90,15 @@ struct aout_sys_t
     bool      b_paused;
     bool      b_preferred_channels_set;
     enum au_dev au_dev;
+
+    /* sw gain */
+    float               soft_gain;
+    bool                soft_mute;
 };
 
+/* Soft volume helper */
+#include "audio_output/volume.h"
+
 enum port_type
 {
     PORT_TYPE_DEFAULT,
@@ -492,6 +499,9 @@ Start(audio_output_t *p_aout, audio_sample_format_t *restrict fmt)
     p_aout->mute_set  = MuteSet;
     p_aout->pause = Pause;
     p_aout->flush = Flush;
+
+    aout_SoftVolumeStart( p_aout );
+
     msg_Dbg(p_aout, "analog AudioUnit output successfully opened for %4.4s %s",
             (const char *)&fmt->i_format, aout_FormatPrintChannels(fmt));
     return VLC_SUCCESS;
@@ -574,6 +584,8 @@ Open(vlc_object_t *obj)
     aout->stop = Stop;
     aout->device_select = DeviceSelect;
 
+    aout_SoftVolumeInit( aout );
+
     for (unsigned int i = 0; i< sizeof(au_devs) / sizeof(au_devs[0]); ++i)
         aout_HotplugReport(aout, au_devs[i].psz_id, au_devs[i].psz_name);
 
-- 
2.16.1



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