oss: support 24-bit sample formats

This works perfectly fine and is required for bitperfect mode on
some soundcards, according to Romain Tartière <romain@FreeBSD.org>

ref: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198567#c6

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/277>

diff --git a/src/modules/oss/oss-util.c b/src/modules/oss/oss-util.c
index 42ee7f5..4deef9f 100644 (file)
--- a/src/modules/oss/oss-util.c
+++ b/src/modules/oss/oss-util.c
@@ -164,8 +164,13 @@ int pa_oss_auto_format(int fd, pa_sample_spec *ss) {
         [PA_SAMPLE_FLOAT32BE] = AFMT_QUERY, /* not supported */
         [PA_SAMPLE_S32LE] = AFMT_QUERY, /* not supported */
         [PA_SAMPLE_S32BE] = AFMT_QUERY, /* not supported */
+#if defined(AFMT_S24_LE) && defined(AFMT_S24_BE)
+        [PA_SAMPLE_S24LE] = AFMT_S24_LE,
+        [PA_SAMPLE_S24BE] = AFMT_S24_BE,
+#else
         [PA_SAMPLE_S24LE] = AFMT_QUERY, /* not supported */
         [PA_SAMPLE_S24BE] = AFMT_QUERY, /* not supported */
+#endif
         [PA_SAMPLE_S24_32LE] = AFMT_QUERY, /* not supported */
         [PA_SAMPLE_S24_32BE] = AFMT_QUERY, /* not supported */
     };