[PATCH] stream: Check sample spec validity before abiding PULSE_LATENCY_MSEC

[david.henningsson@xxxxxxxxxxxxx (David Henningsson)]

In case the sample spec is not known, as can be the case when
pa_stream_new_extended is used, we cannot satisfy the PULSE_LATENCY_MSEC
request.

As a workaround disable being able to use PULSE_LATENCY_MSEC in this case.

Reported-by: Fritsch <fritsch at xbmc.org>
Signed-off-by: David Henningsson <david.henningsson at canonical.com>
---
 src/pulse/stream.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/pulse/stream.c b/src/pulse/stream.c
index d4ad505..c301b8e 100644
--- a/src/pulse/stream.c
+++ b/src/pulse/stream.c
@@ -990,16 +990,18 @@ static void patch_buffer_attr(pa_stream *s, pa_buffer_attr *attr, pa_stream_flag
 
         if (pa_atou(e, &ms) < 0 || ms <= 0)
             pa_log_debug("Failed to parse $PULSE_LATENCY_MSEC: %s", e);
+        else if (!pa_sample_spec_valid(&s->sample_spec))
+            pa_log_debug("Ignoring $PULSE_LATENCY_MSEC: %s (invalid sample spec)", e);
         else {
             attr->maxlength = (uint32_t) -1;
             attr->tlength = pa_usec_to_bytes(ms * PA_USEC_PER_MSEC, &s->sample_spec);
             attr->minreq = (uint32_t) -1;
             attr->prebuf = (uint32_t) -1;
             attr->fragsize = attr->tlength;
-        }
 
-        if (flags)
-            *flags |= PA_STREAM_ADJUST_LATENCY;
+            if (flags)
+                *flags |= PA_STREAM_ADJUST_LATENCY;
+        }
     }
 
     if (s->context->version >= 13)
-- 
1.9.1