From 917e8cd0f619c2be0a2e6c38216508c62c56f7e7 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 31 Mar 2009 21:35:34 +0200
Subject: handle buffer_attr changed messages properly

---
 src/modules/module-tunnel.c | 50 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

(limited to 'src/modules/module-tunnel.c')

diff --git a/src/modules/module-tunnel.c b/src/modules/module-tunnel.c
index 7f303f1f..79facddb 100644
--- a/src/modules/module-tunnel.c
+++ b/src/modules/module-tunnel.c
@@ -146,6 +146,7 @@ static void command_overflow_or_underflow(pa_pdispatch *pd, uint32_t command, ui
 static void command_suspended(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 static void command_moved(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 static void command_stream_or_client_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
+static void command_stream_buffer_attr_changed(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata);
 
 static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
 #ifdef TUNNEL_SINK
@@ -163,7 +164,9 @@ static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
     [PA_COMMAND_RECORD_STREAM_MOVED] = command_moved,
     [PA_COMMAND_PLAYBACK_STREAM_EVENT] = command_stream_or_client_event,
     [PA_COMMAND_RECORD_STREAM_EVENT] = command_stream_or_client_event,
-    [PA_COMMAND_CLIENT_EVENT] = command_stream_or_client_event
+    [PA_COMMAND_CLIENT_EVENT] = command_stream_or_client_event,
+    [PA_COMMAND_PLAYBACK_BUFFER_ATTR_CHANGED] = command_stream_buffer_attr_changed,
+    [PA_COMMAND_RECORD_BUFFER_ATTR_CHANGED] = command_stream_buffer_attr_changed
 };
 
 struct userdata {
@@ -320,6 +323,51 @@ static void command_moved(pa_pdispatch *pd,  uint32_t command,  uint32_t tag, pa
     request_latency(u);
 }
 
+static void command_stream_buffer_attr_changed(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
+    struct userdata *u = userdata;
+    uint32_t channel, maxlength, tlength, fragsize, prebuf, minreq;
+    pa_usec_t usec;
+
+    pa_assert(pd);
+    pa_assert(t);
+    pa_assert(u);
+    pa_assert(u->pdispatch == pd);
+
+    if (pa_tagstruct_getu32(t, &channel) < 0 ||
+        pa_tagstruct_getu32(t, &maxlength) < 0) {
+
+        pa_log_error("Invalid packet.");
+        pa_module_unload_request(u->module, TRUE);
+        return;
+    }
+
+    if (command == PA_COMMAND_RECORD_BUFFER_ATTR_CHANGED) {
+        if (pa_tagstruct_getu32(t, &fragsize) < 0 ||
+            pa_tagstruct_get_usec(t, &usec) < 0) {
+
+            pa_log_error("Invalid packet.");
+            pa_module_unload_request(u->module, TRUE);
+            return;
+        }
+    } else {
+        if (pa_tagstruct_getu32(t, &tlength) < 0 ||
+            pa_tagstruct_getu32(t, &prebuf) < 0 ||
+            pa_tagstruct_getu32(t, &minreq) < 0 ||
+            pa_tagstruct_get_usec(t, &usec) < 0) {
+
+            pa_log_error("Invalid packet.");
+            pa_module_unload_request(u->module, TRUE);
+            return;
+        }
+    }
+
+#ifdef TUNNEL_SINK
+    pa_log_debug("Server reports buffer attrs changed. tlength now at %lu, before %lu.", (unsigned long) tlength, (unsigned long) u->tlength);
+#endif
+
+    request_latency(u);
+}
+
 #ifdef TUNNEL_SINK
 
 /* Called from main context */
-- 
cgit