Takashi Iwai
5dabf3bcba
- Backport upstream fixes / enhancements about alsa modules: mainly for UCM support (boo#1160914): 0001-alsa-mixer-path-test-Hide-unused-functions-when-buil.patch 0002-alsa-mixer-recognize-the-Speaker-Jack-control.patch 0003-alsa-mixer-add-support-for-SteelSeries-Arctis-Pro-20.patch 0004-alsa-mixer-Add-support-for-SteelSeries-Arctis-5-2019.patch 0005-alsa-mixer-add-support-for-LucidSound-LS31-and-creat.patch 0006-alsa-ucm-use-ucm2-name-for-the-direct-card-index-ope.patch 0007-alsa-ucm-add-mixer-IDs-to-ucm_items.patch 0008-alsa-mixer-handle-the-index-for-ALSA-mixer-element-i.patch 0009-alsa-mixer-improve-alsa_id_decode-function.patch 0010-alsa-ucm-Support-Playback-CaptureVolume.patch 0011-alsa-ucm-Fix-volume-control-based-on-review.patch 0012-alsa-ucm-use-the-correct-mixer-identifiers-as-first.patch 0013-alsa-ucm-add-support-for-master-volume.patch 0014-alsa-ucm-split-correctly-JackHWMute-device-names.patch 0015-alsa-ucm-fix-parsing-for-JackControl.patch 0016-alsa-ucm-add-comments-to-ucm_get_mixer_id.patch 0017-alsa-ucm-validate-access-to-PA_DEVICE_PORT_DATA.patch 0018-alsa-Skip-resume-PCM-if-hardware-doesn-t-support-it.patch 0019-alsa-ucm-parse-correctly-the-device-values.patch 0020-alsa-ucm-do-not-try-to-use-UCM-device-name-as-jack-n.patch 0021-alsa-util-do-not-try-to-guess-the-mixer-name-from-th.patch 0022-alsa-ucm-add-control-and-mixer-device-items.patch 0023-alsa-ucm-get-the-mixer-names-from-ucm-don-t-guess.patch 0024-alsa-ucm-use-the-proper-mixer-name-for-ucm-pcm-sink-.patch 0025-alsa-mixer-handle-interface-type-CARD-PCM-for-mixer-.patch 0026-alsa-mixer-Add-the-ability-to-pass-the-intended-role.patch 0027-alsa-mixer-Set-the-intended-role-of-Steelseries-Arct.patch 0028-alsa-rewrite-mixer-open-close-cache-mixer-accesses-i.patch OBS-URL: https://build.opensuse.org/request/show/774841 OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/pulseaudio?expand=0&rev=217
46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
From f5c02dfcd821ab77fc7f91da985254a7bdb658ad Mon Sep 17 00:00:00 2001
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From: Jaroslav Kysela <perex@perex.cz>
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Date: Wed, 4 Dec 2019 16:29:51 +0100
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Subject: [PATCH] alsa-ucm: add comments to ucm_get_mixer_id()
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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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---
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src/modules/alsa/alsa-ucm.c | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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diff --git a/src/modules/alsa/alsa-ucm.c b/src/modules/alsa/alsa-ucm.c
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index 221fed719284..3ee271845c19 100644
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--- a/src/modules/alsa/alsa-ucm.c
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+++ b/src/modules/alsa/alsa-ucm.c
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@@ -241,7 +241,7 @@ static char *ucm_get_mixer_id(
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const char *cprop,
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const char *cid)
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{
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-#if SND_LIB_VERSION >= 0x10201
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+#if SND_LIB_VERSION >= 0x10201 /* alsa-lib-1.2.1+ check */
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snd_ctl_elem_id_t *ctl;
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int err;
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#endif
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@@ -249,13 +249,17 @@ static char *ucm_get_mixer_id(
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char *value2;
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int index;
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+ /* mixer element as first, if it's found, return it without modifications */
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value = pa_proplist_gets(device->proplist, mprop);
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if (value)
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return pa_xstrdup(value);
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+ /* fallback, get the control element identifier */
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+ /* and try to do some heuristic to determine the mixer element name */
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value = pa_proplist_gets(device->proplist, cprop);
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if (value == NULL)
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return NULL;
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-#if SND_LIB_VERSION >= 0x10201
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+#if SND_LIB_VERSION >= 0x10201 /* alsa-lib-1.2.1+ check */
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+ /* The new parser may return also element index. */
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snd_ctl_elem_id_alloca(&ctl);
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err = snd_use_case_parse_ctl_elem_id(ctl, cid, value);
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if (err < 0)
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--
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2.16.4
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