* rename "latency correction" to "write index correction"

* add read index invalidation code
* rename "ipol_event" stuff to "auto_timing_update"
* remove buffer_usec field from pa_timing_info, since it can be easily calculated from write_index and read_index anyway
* add read_index_corrupt field to "pa_timing_info", similar to the already existing write_index_corrupt field
* restart automatic timing update event every time a query is issued, not just when the last event elapsed
* proper invalidation code for pa_stream_flush()
* do tarsnport/sink/source latency correction for playback time only when device is not corked


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@686 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 13 insertions, 8 deletions

diff --git a/src/polyp/internal.h b/src/polyp/internal.h
index 3b85b3d1..2bec0294 100644
--- a/src/polyp/internal.h
+++ b/src/polyp/internal.h
@@ -83,14 +83,14 @@ struct pa_context {
     pa_client_conf *conf;
 };
 
-#define PA_MAX_LATENCY_CORRECTIONS 10
+#define PA_MAX_WRITE_INDEX_CORRECTIONS 10
 
-typedef struct pa_latency_correction {
+typedef struct pa_index_correction {
     uint32_t tag;
     int valid;
     int64_t value;
     int absolute, corrupt;
-} pa_latency_correction;
+} pa_index_correction;
 
 struct pa_stream {
     int ref;
@@ -124,13 +124,18 @@ struct pa_stream {
     /* Use to make sure that time advances monotonically */
     pa_usec_t previous_time;
     
-    /* Latency correction stuff */
-    pa_latency_correction latency_corrections[PA_MAX_LATENCY_CORRECTIONS];
-    int idx_latency_correction;
+    /* time updates with tags older than these are invalid */
+    uint32_t write_index_not_before;
+    uint32_t read_index_not_before;
+
+    /* Data about individual timing update correctoins */
+    pa_index_correction write_index_corrections[PA_MAX_WRITE_INDEX_CORRECTIONS];
+    int current_write_index_correction;
 
     /* Latency interpolation stuff */
-    pa_time_event *ipol_event;
-    int ipol_requested;
+    pa_time_event *auto_timing_update_event;
+    int auto_timing_update_requested;
+    
     pa_usec_t ipol_usec;
     int ipol_usec_valid;
     struct timeval ipol_timestamp;