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

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* 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
This commit is contained in:
Lennart Poettering 2006-04-12 17:17:23 +00:00
parent 77c2a1f561
commit 49b3150434
3 changed files with 217 additions and 135 deletions
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21
src/polyp/internal.h
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@ -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;