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capture: Add the passthrough format negotiation to capture streams.

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This helps to keep the API more symmetrical and also potentially
allows support for passthrough monitor sources at some point in the future.
This commit is contained in:
Colin Guthrie 2011-05-17 21:56:10 +01:00
parent 30597b7c27
commit 5d35375aa7
18 changed files with 406 additions and 104 deletions
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24
src/pulsecore/source.h
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@ -108,31 +108,35 @@ struct pa_source {
* context. If this is NULL a PA_SOURCE_MESSAGE_GET_VOLUME message
* will be sent to the IO thread instead. If refresh_volume is
* FALSE neither this function is called nor a message is sent. */
void (*get_volume)(pa_source *s); /* dito */
void (*get_volume)(pa_source *s); /* ditto */
/* Called when the volume shall be changed. Called from main loop
* context. If this is NULL a PA_SOURCE_MESSAGE_SET_VOLUME message
* will be sent to the IO thread instead. */
void (*set_volume)(pa_source *s); /* dito */
void (*set_volume)(pa_source *s); /* ditto */
/* Called when the mute setting is queried. Called from main loop
* context. If this is NULL a PA_SOURCE_MESSAGE_GET_MUTE message
* will be sent to the IO thread instead. If refresh_mute is
* FALSE neither this function is called nor a message is sent.*/
void (*get_mute)(pa_source *s); /* dito */
void (*get_mute)(pa_source *s); /* ditto */
/* Called when the mute setting shall be changed. Called from main
* loop context. If this is NULL a PA_SOURCE_MESSAGE_SET_MUTE
* message will be sent to the IO thread instead. */
void (*set_mute)(pa_source *s); /* dito */
void (*set_mute)(pa_source *s); /* ditto */
/* Called when a the requested latency is changed. Called from IO
* thread context. */
void (*update_requested_latency)(pa_source *s); /* dito */
void (*update_requested_latency)(pa_source *s); /* ditto */
/* Called whenever the port shall be changed. Called from main
* thread. */
int (*set_port)(pa_source *s, pa_device_port *port); /*dito */
int (*set_port)(pa_source *s, pa_device_port *port); /*ditto */
/* Called to get the list of formats supported by the source, sorted
* in descending order of preference. */
pa_idxset* (*get_formats)(pa_source *s); /* ditto */
/* Contains copies of the above data so that the real-time worker
* thread can work without access locking */
@ -265,6 +269,10 @@ int pa_source_update_status(pa_source*s);
int pa_source_suspend(pa_source *s, pa_bool_t suspend, pa_suspend_cause_t cause);
int pa_source_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause);
/* Is the source in passthrough mode? (that is, is this a monitor source for a sink
* that has a passthrough sink input connected to it. */
pa_bool_t pa_source_is_passthrough(pa_source *s);
void pa_source_set_volume(pa_source *source, const pa_cvolume *volume, pa_bool_t save);
const pa_cvolume *pa_source_get_volume(pa_source *source, pa_bool_t force_refresh);
@ -285,6 +293,10 @@ pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q);
void pa_source_move_all_finish(pa_source *s, pa_queue *q, pa_bool_t save);
void pa_source_move_all_fail(pa_queue *q);
pa_idxset* pa_source_get_formats(pa_source *s);
pa_bool_t pa_source_check_format(pa_source *s, pa_format_info *f);
pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats);
/*** To be called exclusively by the source driver, from IO context */
void pa_source_post(pa_source*s, const pa_memchunk *chunk);