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authorMax Kellermann <max@duempel.org>2012-03-21 22:28:18 +0100
committerMax Kellermann <max@duempel.org>2012-03-21 22:28:18 +0100
commit11e83eb7e7c78653f37eec994b89bbc4f569359c (patch)
treed9103d47480381a04088f415bf7362a7d2a586a6 /src/output/oss_output_plugin.c
parent9ec9a8705e667280a69abf8f963db8e4ec8f4cd2 (diff)
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output/oss: move code to oss_probe_sample_format()
Diffstat (limited to 'src/output/oss_output_plugin.c')
-rw-r--r--src/output/oss_output_plugin.c93
1 files changed, 59 insertions, 34 deletions
diff --git a/src/output/oss_output_plugin.c b/src/output/oss_output_plugin.c
index 1b09c4b53..4f22ddb7d 100644
--- a/src/output/oss_output_plugin.c
+++ b/src/output/oss_output_plugin.c
@@ -22,6 +22,7 @@
#include "output_api.h"
#include "mixer_list.h"
#include "fd_util.h"
+#include "glib_compat.h"
#include <glib.h>
@@ -495,6 +496,46 @@ sample_format_from_oss(int format)
}
/**
+ * Probe one sample format.
+ *
+ * @return the selected sample format or SAMPLE_FORMAT_UNDEFINED on
+ * error
+ */
+static enum oss_setup_result
+oss_probe_sample_format(int fd, enum sample_format sample_format,
+ enum sample_format *sample_format_r,
+#ifdef AFMT_S24_PACKED
+ struct pcm_export_state *export,
+#endif
+ GError **error_r)
+{
+ int oss_format = sample_format_to_oss(sample_format);
+ if (oss_format == AFMT_QUERY)
+ return UNSUPPORTED;
+
+ enum oss_setup_result result =
+ oss_try_ioctl_r(fd, SNDCTL_DSP_SAMPLESIZE,
+ &oss_format,
+ "Failed to set sample format", error_r);
+ if (result != SUCCESS)
+ return result;
+
+ sample_format = sample_format_from_oss(oss_format);
+ if (sample_format == SAMPLE_FORMAT_UNDEFINED)
+ return UNSUPPORTED;
+
+ *sample_format_r = sample_format;
+
+#ifdef AFMT_S24_PACKED
+ pcm_export_open(export, sample_format,
+ oss_format == AFMT_S24_PACKED &&
+ G_BYTE_ORDER != G_LITTLE_ENDIAN);
+#endif
+
+ return SUCCESS;
+}
+
+/**
* Set up the sample format, and attempts to find alternatives if the
* specified format is not supported.
*/
@@ -505,26 +546,17 @@ oss_setup_sample_format(int fd, struct audio_format *audio_format,
#endif
GError **error_r)
{
- const char *const msg = "Failed to set sample format";
- int oss_format = sample_format_to_oss(audio_format->format);
- enum oss_setup_result result = oss_format != AFMT_QUERY
- ? oss_try_ioctl_r(fd, SNDCTL_DSP_SAMPLESIZE,
- &oss_format, msg, error_r)
- : UNSUPPORTED;
enum sample_format mpd_format;
+ enum oss_setup_result result =
+ oss_probe_sample_format(fd, audio_format->format,
+ &mpd_format,
+#ifdef AFMT_S24_PACKED
+ export,
+#endif
+ error_r);
switch (result) {
case SUCCESS:
- mpd_format = sample_format_from_oss(oss_format);
- if (mpd_format == SAMPLE_FORMAT_UNDEFINED)
- break;
-
audio_format->format = mpd_format;
-
-#ifdef AFMT_S24_PACKED
- pcm_export_open(export, mpd_format,
- oss_format == AFMT_S24_PACKED &&
- G_BYTE_ORDER != G_LITTLE_ENDIAN);
-#endif
return true;
case ERROR:
@@ -534,6 +566,9 @@ oss_setup_sample_format(int fd, struct audio_format *audio_format,
break;
}
+ if (result != UNSUPPORTED)
+ return result == SUCCESS;
+
/* the requested sample format is not available - probe for
other formats supported by MPD */
@@ -552,26 +587,15 @@ oss_setup_sample_format(int fd, struct audio_format *audio_format,
/* don't try that again */
continue;
- oss_format = sample_format_to_oss(mpd_format);
- if (oss_format == AFMT_QUERY)
- /* not supported by this OSS version */
- continue;
-
- result = oss_try_ioctl_r(fd, SNDCTL_DSP_SAMPLESIZE,
- &oss_format, msg, error_r);
+ result = oss_probe_sample_format(fd, mpd_format,
+ &mpd_format,
+#ifdef AFMT_S24_PACKED
+ export,
+#endif
+ error_r);
switch (result) {
case SUCCESS:
- mpd_format = sample_format_from_oss(oss_format);
- if (mpd_format == SAMPLE_FORMAT_UNDEFINED)
- break;
-
audio_format->format = mpd_format;
-
-#ifdef AFMT_S24_PACKED
- pcm_export_open(export, mpd_format,
- oss_format == AFMT_S24_PACKED &&
- G_BYTE_ORDER != G_LITTLE_ENDIAN);
-#endif
return true;
case ERROR:
@@ -582,7 +606,8 @@ oss_setup_sample_format(int fd, struct audio_format *audio_format,
}
}
- g_set_error(error_r, oss_output_quark(), EINVAL, "%s", msg);
+ g_set_error_literal(error_r, oss_output_quark(), EINVAL,
+ "Failed to set sample format");
return false;
}