ndisrc: Assume input with more than 8 raw audio channels is unpositioned

gst_audio_channel_positions_from_mask() will otherwise print warnings
all the time.

Fixes #444

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1357>

1 files changed, 6 insertions, 4 deletions

diff --git a/net/ndi/src/ndisrc/receiver.rs b/net/ndi/src/ndisrc/receiver.rs
index 527f55d84..2fb94e2f6 100644
--- a/net/ndi/src/ndisrc/receiver.rs
+++ b/net/ndi/src/ndisrc/receiver.rs
@@ -1662,10 +1662,12 @@ impl Receiver {
         if [NDIlib_FourCC_audio_type_FLTp].contains(&fourcc) {
             let channels = audio_frame.no_channels() as u32;
             let mut positions = [gst_audio::AudioChannelPosition::None; 64];
-            let _ = gst_audio::AudioChannelPosition::positions_from_mask(
-                gst_audio::AudioChannelPosition::fallback_mask(channels),
-                &mut positions[..channels as usize],
-            );
+            if channels <= 8 {
+                let _ = gst_audio::AudioChannelPosition::positions_from_mask(
+                    gst_audio::AudioChannelPosition::fallback_mask(channels),
+                    &mut positions[..channels as usize],
+                );
+            }
 
             let builder = gst_audio::AudioInfo::builder(
                 gst_audio::AUDIO_FORMAT_F32,