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-rw-r--r--src/pulsecore/sink-input.h20
1 files changed, 11 insertions, 9 deletions
diff --git a/src/pulsecore/sink-input.h b/src/pulsecore/sink-input.h
index 8545dea3..184a2c4e 100644
--- a/src/pulsecore/sink-input.h
+++ b/src/pulsecore/sink-input.h
@@ -97,16 +97,16 @@ struct pa_sink_input {
* only. If less data is available, it's fine to return a smaller
* block. If more data is already ready, it is better to return
* the full block. */
- int (*pop) (pa_sink_input *i, size_t request_nbytes, pa_memchunk *chunk);
+ int (*pop) (pa_sink_input *i, size_t request_nbytes, pa_memchunk *chunk); /* may NOT be NULL */
/* Rewind the queue by the specified number of bytes. Called just
* before peek() if it is called at all. Only called if the sink
* input driver ever plans to call
- * pa_sink_input_request_rewrite(). Called from IO context. */
- void (*rewind) (pa_sink_input *i, size_t nbytes); /* may be NULL */
+ * pa_sink_input_request_rewind(). Called from IO context. */
+ void (*rewind) (pa_sink_input *i, size_t nbytes); /* may NOT be NULL */
/* Called whenever the maximum rewindable size of the sink
- * changes. Called from UI context. */
+ * changes. Called from RT context. */
void (*set_max_rewind) (pa_sink_input *i, size_t nbytes); /* may be NULL */
/* If non-NULL this function is called when the input is first
@@ -150,7 +150,9 @@ struct pa_sink_input {
/* We maintain a history of resampled audio data here. */
pa_memblockq *render_memblockq;
+
size_t rewrite_nbytes;
+ int64_t since_underrun;
pa_bool_t ignore_rewind;
pa_sink_input *sync_prev, *sync_next;
@@ -229,14 +231,13 @@ void pa_sink_input_set_name(pa_sink_input *i, const char *name);
pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec);
/* Request that the specified number of bytes already written out to
-the hw device is rewritten, if possible. If this function is used you
-need to supply the ->rewind() function pointer. Please note that this
-is only a kind request. The sink driver may not be able to fulfill it
+the hw device is rewritten, if possible. Please note that this is
+only a kind request. The sink driver may not be able to fulfill it
fully -- or at all. If the request for a rewrite was successful, the
sink driver will call ->rewind() and pass the number of bytes that
could be rewound in the HW device. This functionality is required for
implementing the "zero latency" write-through functionality. */
-void pa_sink_input_request_rewrite(pa_sink_input *i, size_t nbytes);
+void pa_sink_input_request_rewind(pa_sink_input *i, size_t nbytes, pa_bool_t ignore_rewind);
/* Callable by everyone from main thread*/
@@ -265,7 +266,7 @@ pa_bool_t pa_sink_input_safe_to_remove(pa_sink_input *i);
int pa_sink_input_peek(pa_sink_input *i, size_t length, pa_memchunk *chunk, pa_cvolume *volume);
void pa_sink_input_drop(pa_sink_input *i, size_t length);
-void pa_sink_input_rewind(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */);
+void pa_sink_input_process_rewind(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */);
void pa_sink_input_set_max_rewind(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */);
int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
@@ -277,5 +278,6 @@ typedef struct pa_sink_input_move_info {
size_t buffer_bytes;
} pa_sink_input_move_info;
+pa_memchunk* pa_sink_input_get_silence(pa_sink_input *i, pa_memchunk *ret);
#endif