[vlc-commits] audiounit_ios: add support for > 48kHz sample rate

[Thomas Guillem]

vlc/vlc-3.0 | branch: master | Thomas Guillem <thomas at gllm.fr> | Tue Oct 15 15:44:55 2019 +0200| [6b5dcd4027e48fd0928763c1dd188b9e99b93cd5] | committer: Thomas Guillem

audiounit_ios: add support for > 48kHz sample rate

Call setPreferredSampleRate() to setup the rate of the input. Failure is OK
since it will fallback to a normal samplerate.

Tested on a USB DAC with 96kHz support, but it should also work via HDMI.

(cherry picked from commit 84134c554a4a3c5be78f818896a372a89bdaa792)
Signed-off-by: Thomas Guillem <thomas at gllm.fr>

> http://git.videolan.org/gitweb.cgi/vlc/vlc-3.0.git/?a=commit;h=6b5dcd4027e48fd0928763c1dd188b9e99b93cd5
---

 modules/audio_output/audiounit_ios.m | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/modules/audio_output/audiounit_ios.m b/modules/audio_output/audiounit_ios.m
index 29b46da5f0..f97c83ceea 100644
--- a/modules/audio_output/audiounit_ios.m
+++ b/modules/audio_output/audiounit_ios.m
@@ -523,6 +523,13 @@ Start(audio_output_t *p_aout, audio_sample_format_t *restrict fmt)
      * should correspond to this number */
     avas_setPreferredNumberOfChannels(p_aout, fmt);
 
+    BOOL success = [p_sys->avInstance setPreferredSampleRate:fmt->i_rate error:nil];
+    if (!success)
+    {
+        /* Not critical, we can use any sample rates */
+        msg_Dbg(p_aout, "failed to set preferred sample rate");
+    }
+
     enum port_type port_type;
     int ret = avas_GetOptimalChannelLayout(p_aout, &port_type, &layout);
     if (ret != VLC_SUCCESS)