1) Add flexible seeking support (including absolute) for memory block queues and playback streams

2) Add support to synchronize multiple playback streams
3) add two tests for 1) and 2)
4) s/PA_ERROR/PA_ERR/
5) s/PA_ERROR_OK/PA_OK/
6) update simple API to deal properly with new peek/drop recording API
7) add beginnings of proper validity checking on API calls in client libs (needs to be extended)
8) report playback buffer overflows/underflows to the client
9) move client side recording mcalign stuff into the memblockq 
10) create typedefs for a bunch of API callback prototypes
11) simplify handling of HUP poll() events

Yes, i know, it's usually better to commit a lot of small patches instead of a
single big one. In this case however, this would have contradicted the other
rule: never commit broken or incomplete stuff.

*** This stuff needs a lot of additional testing! ***


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@511 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/polypcore/packet.c

@@ -32,37 +32,46 @@
 
 pa_packet* pa_packet_new(size_t length) {
     pa_packet *p;
+
     assert(length);
+
     p = pa_xmalloc(sizeof(pa_packet)+length);
     p->ref = 1;
     p->length = length;
     p->data = (uint8_t*) (p+1);
     p->type = PA_PACKET_APPENDED;
+    
     return p;
 }
 
-pa_packet* pa_packet_new_dynamic(uint8_t* data, size_t length) {
+pa_packet* pa_packet_new_dynamic(void* data, size_t length) {
     pa_packet *p;
-    assert(data && length);
-    p = pa_xmalloc(sizeof(pa_packet));
+
+    assert(data);
+    assert(length);
+
+    p = pa_xnew(pa_packet, 1);
     p->ref = 1;
     p->length = length;
     p->data = data;
     p->type = PA_PACKET_DYNAMIC;
+    
     return p;
 }
 
 pa_packet* pa_packet_ref(pa_packet *p) {
-    assert(p && p->ref >= 1);
+    assert(p);
+    assert(p->ref >= 1);
+    
     p->ref++;
     return p;
 }
 
 void pa_packet_unref(pa_packet *p) {
-    assert(p && p->ref >= 1);
-    p->ref--;
-
-    if (p->ref == 0) {
+    assert(p);
+    assert(p->ref >= 1);
+    
+    if (--p->ref == 0) {
         if (p->type == PA_PACKET_DYNAMIC)
             pa_xfree(p->data);
         pa_xfree(p);