File periods-min-fail.patch of Package pipewire

From 2e2f7c9f7952823d6a876597dae1e68bd3009705 Mon Sep 17 00:00:00 2001
From: Pauli Virtanen <pav@iki.fi>
Date: Mon, 22 Sep 2025 20:27:19 +0300
Subject: [PATCH] alsa: don't fail if 3 periods_min fails

Some drivers (emu10k1) appear to not necessarily support more than 2
periods.

Don't fail start if snd_pcm_hw_params_set_periods_min() fails, then we
just set nearest possible periods and buffer sizes.
---
 spa/plugins/alsa/alsa-pcm.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/spa/plugins/alsa/alsa-pcm.c b/spa/plugins/alsa/alsa-pcm.c
index 4daaa44c22..b9e631c58d 100644
--- a/spa/plugins/alsa/alsa-pcm.c
+++ b/spa/plugins/alsa/alsa-pcm.c
@@ -2360,10 +2360,14 @@ int spa_alsa_set_format(struct state *state, struct spa_audio_info *fmt, uint32_
 		snd_pcm_uframes_t period_size_max;
 		unsigned int periods_min = (periods == UINT_MAX) ? 3 : periods;
 
-		CHECK(snd_pcm_hw_params_set_periods_min(hndl, params, &periods_min, &dir), "set_periods_min");
-		CHECK(snd_pcm_hw_params_get_period_size_max(params, &period_size_max, &dir), "get_period_size_max");
-		if (period_size > period_size_max)
-			period_size = SPA_MIN(period_size, flp2(period_size_max));
+		err = snd_pcm_hw_params_set_periods_min(hndl, params, &periods_min, &dir);
+		if (!err) {
+			CHECK(snd_pcm_hw_params_get_period_size_max(params, &period_size_max, &dir), "get_period_size_max");
+			if (period_size > period_size_max)
+				period_size = SPA_MIN(period_size, flp2(period_size_max));
+		} else {
+			spa_log_debug(state->log, "set_periods_min: %s", snd_strerror(err));
+		}
 	}
 
 	CHECK(snd_pcm_hw_params_set_period_size_near(hndl, params, &period_size, &dir), "set_period_size_near");
-- 
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