diff options
Diffstat (limited to 'src/pulse/def.h')
| -rw-r--r-- | src/pulse/def.h | 971 |
1 files changed, 804 insertions, 167 deletions
diff --git a/src/pulse/def.h b/src/pulse/def.h index 01ed0f6d..16b2e596 100644 --- a/src/pulse/def.h +++ b/src/pulse/def.h @@ -1,21 +1,22 @@ #ifndef foodefhfoo #define foodefhfoo -/* $Id$ */ - /*** This file is part of PulseAudio. - + + Copyright 2004-2006 Lennart Poettering + Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB + PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. - + PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. - + You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 @@ -24,10 +25,10 @@ #include <inttypes.h> #include <sys/time.h> -#include <time.h> #include <pulse/cdecl.h> #include <pulse/sample.h> +#include <pulse/version.h> /** \file * Global definitions */ @@ -45,31 +46,85 @@ typedef enum pa_context_state { PA_CONTEXT_TERMINATED /**< The connection was terminated cleanly */ } pa_context_state_t; +/** Return non-zero if the passed state is one of the connected states. \since 0.9.11 */ +static inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x) { + return + x == PA_CONTEXT_CONNECTING || + x == PA_CONTEXT_AUTHORIZING || + x == PA_CONTEXT_SETTING_NAME || + x == PA_CONTEXT_READY; +} + +/** \cond fulldocs */ +#define PA_CONTEXT_UNCONNECTED PA_CONTEXT_UNCONNECTED +#define PA_CONTEXT_CONNECTING PA_CONTEXT_CONNECTING +#define PA_CONTEXT_AUTHORIZING PA_CONTEXT_AUTHORIZING +#define PA_CONTEXT_SETTING_NAME PA_CONTEXT_SETTING_NAME +#define PA_CONTEXT_READY PA_CONTEXT_READY +#define PA_CONTEXT_FAILED PA_CONTEXT_FAILED +#define PA_CONTEXT_TERMINATED PA_CONTEXT_TERMINATED +#define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD +/** \endcond */ + /** The state of a stream */ typedef enum pa_stream_state { - PA_STREAM_UNCONNECTED, /**< The stream is not yet connected to any sink or source */ + PA_STREAM_UNCONNECTED, /**< The stream is not yet connected to any sink or source */ PA_STREAM_CREATING, /**< The stream is being created */ PA_STREAM_READY, /**< The stream is established, you may pass audio data to it now */ - PA_STREAM_FAILED, /**< An error occured that made the stream invalid */ + PA_STREAM_FAILED, /**< An error occurred that made the stream invalid */ PA_STREAM_TERMINATED /**< The stream has been terminated cleanly */ } pa_stream_state_t; +/** Return non-zero if the passed state is one of the connected states. \since 0.9.11 */ +static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x) { + return + x == PA_STREAM_CREATING || + x == PA_STREAM_READY; +} + +/** \cond fulldocs */ +#define PA_STREAM_UNCONNECTED PA_STREAM_UNCONNECTED +#define PA_STREAM_CREATING PA_STREAM_CREATING +#define PA_STREAM_READY PA_STREAM_READY +#define PA_STREAM_FAILED PA_STREAM_FAILED +#define PA_STREAM_TERMINATED PA_STREAM_TERMINATED +#define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD +/** \endcond */ + /** The state of an operation */ typedef enum pa_operation_state { PA_OPERATION_RUNNING, /**< The operation is still running */ PA_OPERATION_DONE, /**< The operation has been completed */ - PA_OPERATION_CANCELED /**< The operation has been canceled */ + PA_OPERATION_CANCELLED /**< The operation has been cancelled. Before 0.9.18 this was called PA_OPERATION_CANCELED. That name is still available for compatibility. */ } pa_operation_state_t; +/** \cond fulldocs */ +#define PA_OPERATION_RUNNING PA_OPERATION_RUNNING +#define PA_OPERATION_DONE PA_OPERATION_DONE +#define PA_OPERATION_CANCELED PA_OPERATION_CANCELLED +#define PA_OPERATION_CANCELLED PA_OPERATION_CANCELLED +/** \endcond */ + /** An invalid index */ #define PA_INVALID_INDEX ((uint32_t) -1) -/** Some special flags for contexts. \since 0.8 */ +/** Some special flags for contexts. */ typedef enum pa_context_flags { - PA_CONTEXT_NOAUTOSPAWN = 1 /**< Disabled autospawning of the PulseAudio daemon if required */ + PA_CONTEXT_NOFLAGS = 0x0000U, + /**< Flag to pass when no specific options are needed (used to avoid casting) \since 0.9.19 */ + PA_CONTEXT_NOAUTOSPAWN = 0x0001U, + /**< Disabled autospawning of the PulseAudio daemon if required */ + PA_CONTEXT_NOFAIL = 0x0002U + /**< Don't fail if the daemon is not available when pa_context_connect() is called, instead enter PA_CONTEXT_CONNECTING state and wait for the daemon to appear. \since 0.9.15 */ } pa_context_flags_t; -/** The direction of a pa_stream object */ +/** \cond fulldocs */ +/* Allow clients to check with #ifdef for those flags */ +#define PA_CONTEXT_NOAUTOSPAWN PA_CONTEXT_NOAUTOSPAWN +#define PA_CONTEXT_NOFAIL PA_CONTEXT_NOFAIL +/** \endcond */ + +/** The direction of a pa_stream object */ typedef enum pa_stream_direction { PA_STREAM_NODIRECTION, /**< Invalid direction */ PA_STREAM_PLAYBACK, /**< Playback stream */ @@ -77,67 +132,259 @@ typedef enum pa_stream_direction { PA_STREAM_UPLOAD /**< Sample upload stream */ } pa_stream_direction_t; -/** Some special flags for stream connections. \since 0.6 */ +/** \cond fulldocs */ +#define PA_STREAM_NODIRECTION PA_STREAM_NODIRECTION +#define PA_STREAM_PLAYBACK PA_STREAM_PLAYBACK +#define PA_STREAM_RECORD PA_STREAM_RECORD +#define PA_STREAM_UPLOAD PA_STREAM_UPLOAD +/** \endcond */ + +/** Some special flags for stream connections. */ typedef enum pa_stream_flags { - PA_STREAM_START_CORKED = 1, /**< Create the stream corked, requiring an explicit pa_stream_cork() call to uncork it. */ - PA_STREAM_INTERPOLATE_TIMING = 2, /**< Interpolate the latency for - * this stream. When enabled, - * pa_stream_get_latency() and - * pa_stream_get_time() will try - * to estimate the current - * record/playback time based on - * the local time that passed - * since the last timing info - * update. Using this option - * has the advantage of not - * requiring a whole roundtrip - * when the current - * playback/recording time is - * needed. Consider using this - * option when requesting - * latency information - * frequently. This is - * especially useful on long - * latency network - * connections. It makes a lot - * of sense to combine this - * option with - * PA_STREAM_AUTO_TIMING_UPDATE. */ - PA_STREAM_NOT_MONOTONOUS = 4, /**< Don't force the time to - * increase monotonically. If - * this option is enabled, - * pa_stream_get_time() will not - * necessarily return always - * monotonically increasing time - * values on each call. This may - * confuse applications which - * cannot deal with time going - * 'backwards', but has the - * advantage that bad transport - * latency estimations that - * caused the time to to jump - * ahead can be corrected - * quickly, without the need to - * wait. */ - PA_STREAM_AUTO_TIMING_UPDATE = 8 /**< If set timing update requests - * are issued periodically - * automatically. Combined with - * PA_STREAM_INTERPOLATE_TIMING - * you will be able to query the - * current time and latency with - * pa_stream_get_time() and - * pa_stream_get_latency() at - * all times without a packet - * round trip.*/ + + PA_STREAM_NOFLAGS = 0x0000U, + /**< Flag to pass when no specific options are needed (used to avoid casting) \since 0.9.19 */ + + PA_STREAM_START_CORKED = 0x0001U, + /**< Create the stream corked, requiring an explicit + * pa_stream_cork() call to uncork it. */ + + PA_STREAM_INTERPOLATE_TIMING = 0x0002U, + /**< Interpolate the latency for this stream. When enabled, + * pa_stream_get_latency() and pa_stream_get_time() will try to + * estimate the current record/playback time based on the local + * time that passed since the last timing info update. Using this + * option has the advantage of not requiring a whole roundtrip + * when the current playback/recording time is needed. Consider + * using this option when requesting latency information + * frequently. This is especially useful on long latency network + * connections. It makes a lot of sense to combine this option + * with PA_STREAM_AUTO_TIMING_UPDATE. */ + + PA_STREAM_NOT_MONOTONIC = 0x0004U, + /**< Don't force the time to increase monotonically. If this + * option is enabled, pa_stream_get_time() will not necessarily + * return always monotonically increasing time values on each + * call. This may confuse applications which cannot deal with time + * going 'backwards', but has the advantage that bad transport + * latency estimations that caused the time to to jump ahead can + * be corrected quickly, without the need to wait. (Please note + * that this flag was named PA_STREAM_NOT_MONOTONOUS in releases + * prior to 0.9.11. The old name is still defined too, for + * compatibility reasons. */ + + PA_STREAM_AUTO_TIMING_UPDATE = 0x0008U, + /**< If set timing update requests are issued periodically + * automatically. Combined with PA_STREAM_INTERPOLATE_TIMING you + * will be able to query the current time and latency with + * pa_stream_get_time() and pa_stream_get_latency() at all times + * without a packet round trip.*/ + + PA_STREAM_NO_REMAP_CHANNELS = 0x0010U, + /**< Don't remap channels by their name, instead map them simply + * by their index. Implies PA_STREAM_NO_REMIX_CHANNELS. Only + * supported when the server is at least PA 0.9.8. It is ignored + * on older servers.\since 0.9.8 */ + + PA_STREAM_NO_REMIX_CHANNELS = 0x0020U, + /**< When remapping channels by name, don't upmix or downmix them + * to related channels. Copy them into matching channels of the + * device 1:1. Only supported when the server is at least PA + * 0.9.8. It is ignored on older servers. \since 0.9.8 */ + + PA_STREAM_FIX_FORMAT = 0x0040U, + /**< Use the sample format of the sink/device this stream is being + * connected to, and possibly ignore the format the sample spec + * contains -- but you still have to pass a valid value in it as a + * hint to PulseAudio what would suit your stream best. If this is + * used you should query the used sample format after creating the + * stream by using pa_stream_get_sample_spec(). Also, if you + * specified manual buffer metrics it is recommended to update + * them with pa_stream_set_buffer_attr() to compensate for the + * changed frame sizes. Only supported when the server is at least + * PA 0.9.8. It is ignored on older servers. \since 0.9.8 */ + + PA_STREAM_FIX_RATE = 0x0080U, + /**< Use the sample rate of the sink, and possibly ignore the rate + * the sample spec contains. Usage similar to + * PA_STREAM_FIX_FORMAT.Only supported when the server is at least + * PA 0.9.8. It is ignored on older servers. \since 0.9.8 */ + + PA_STREAM_FIX_CHANNELS = 0x0100, + /**< Use the number of channels and the channel map of the sink, + * and possibly ignore the number of channels and the map the + * sample spec and the passed channel map contains. Usage similar + * to PA_STREAM_FIX_FORMAT. Only supported when the server is at + * least PA 0.9.8. It is ignored on older servers. \since 0.9.8 */ + + PA_STREAM_DONT_MOVE = 0x0200U, + /**< Don't allow moving of this stream to another + * sink/device. Useful if you use any of the PA_STREAM_FIX_ flags + * and want to make sure that resampling never takes place -- + * which might happen if the stream is moved to another + * sink/source with a different sample spec/channel map. Only + * supported when the server is at least PA 0.9.8. It is ignored + * on older servers. \since 0.9.8 */ + + PA_STREAM_VARIABLE_RATE = 0x0400U, + /**< Allow dynamic changing of the sampling rate during playback + * with pa_stream_update_sample_rate(). Only supported when the + * server is at least PA 0.9.8. It is ignored on older + * servers. \since 0.9.8 */ + + PA_STREAM_PEAK_DETECT = 0x0800U, + /**< Find peaks instead of resampling. \since 0.9.11 */ + + PA_STREAM_START_MUTED = 0x1000U, + /**< Create in muted state. If neither PA_STREAM_START_UNMUTED nor + * PA_STREAM_START_MUTED it is left to the server to decide + * whether to create the stream in muted or in unmuted + * state. \since 0.9.11 */ + + PA_STREAM_ADJUST_LATENCY = 0x2000U, + /**< Try to adjust the latency of the sink/source based on the + * requested buffer metrics and adjust buffer metrics + * accordingly. Also see pa_buffer_attr. This option may not be + * specified at the same time as PA_STREAM_EARLY_REQUESTS. \since + * 0.9.11 */ + + PA_STREAM_EARLY_REQUESTS = 0x4000U, + /**< Enable compatibility mode for legacy clients that rely on a + * "classic" hardware device fragment-style playback model. If + * this option is set, the minreq value of the buffer metrics gets + * a new meaning: instead of just specifying that no requests + * asking for less new data than this value will be made to the + * client it will also guarantee that requests are generated as + * early as this limit is reached. This flag should only be set in + * very few situations where compatibility with a fragment-based + * playback model needs to be kept and the client applications + * cannot deal with data requests that are delayed to the latest + * moment possible. (Usually these are programs that use usleep() + * or a similar call in their playback loops instead of sleeping + * on the device itself.) Also see pa_buffer_attr. This option may + * not be specified at the same time as + * PA_STREAM_ADJUST_LATENCY. \since 0.9.12 */ + + PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND = 0x8000U, + /**< If set this stream won't be taken into account when we it is + * checked whether the device this stream is connected to should + * auto-suspend. \since 0.9.15 */ + + PA_STREAM_START_UNMUTED = 0x10000U, + /**< Create in unmuted state. If neither PA_STREAM_START_UNMUTED + * nor PA_STREAM_START_MUTED it is left to the server to decide + * whether to create the stream in muted or in unmuted + * state. \since 0.9.15 */ + + PA_STREAM_FAIL_ON_SUSPEND = 0x20000U, + /**< If the sink/source this stream is connected to is suspended + * during the creation of this stream, cause it to fail. If the + * sink/source is being suspended during creation of this stream, + * make sure this stream is terminated. \since 0.9.15 */ + + PA_STREAM_RELATIVE_VOLUME = 0x40000U, + /**< If a volume is passed when this stream is created, consider + * it relative to the sink's current volume, never as absolute + * device volume. If this is not specified the volume will be + * consider absolute when the sink is in flat volume mode, + * relative otherwise. \since 0.9.20 */ + + PA_STREAM_PASSTHROUGH = 0x80000U + /**< Used to tag content that will be rendered by passthrough sinks. + * The data will be left as is and not reformatted, resampled. + * \since 1.0 */ + } pa_stream_flags_t; +/** \cond fulldocs */ + +/* English is an evil language */ +#define PA_STREAM_NOT_MONOTONOUS PA_STREAM_NOT_MONOTONIC + +/* Allow clients to check with #ifdef for those flags */ +#define PA_STREAM_START_CORKED PA_STREAM_START_CORKED +#define PA_STREAM_INTERPOLATE_TIMING PA_STREAM_INTERPOLATE_TIMING +#define PA_STREAM_NOT_MONOTONIC PA_STREAM_NOT_MONOTONIC +#define PA_STREAM_AUTO_TIMING_UPDATE PA_STREAM_AUTO_TIMING_UPDATE +#define PA_STREAM_NO_REMAP_CHANNELS PA_STREAM_NO_REMAP_CHANNELS +#define PA_STREAM_NO_REMIX_CHANNELS PA_STREAM_NO_REMIX_CHANNELS +#define PA_STREAM_FIX_FORMAT PA_STREAM_FIX_FORMAT +#define PA_STREAM_FIX_RATE PA_STREAM_FIX_RATE +#define PA_STREAM_FIX_CHANNELS PA_STREAM_FIX_CHANNELS +#define PA_STREAM_DONT_MOVE PA_STREAM_DONT_MOVE +#define PA_STREAM_VARIABLE_RATE PA_STREAM_VARIABLE_RATE +#define PA_STREAM_PEAK_DETECT PA_STREAM_PEAK_DETECT +#define PA_STREAM_START_MUTED PA_STREAM_START_MUTED +#define PA_STREAM_ADJUST_LATENCY PA_STREAM_ADJUST_LATENCY +#define PA_STREAM_EARLY_REQUESTS PA_STREAM_EARLY_REQUESTS +#define PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND +#define PA_STREAM_START_UNMUTED PA_STREAM_START_UNMUTED +#define PA_STREAM_FAIL_ON_SUSPEND PA_STREAM_FAIL_ON_SUSPEND +#define PA_STREAM_RELATIVE_VOLUME PA_STREAM_RELATIVE_VOLUME +#define PA_STREAM_PASSTHROUGH PA_STREAM_PASSTHROUGH + +/** \endcond */ + /** Playback and record buffer metrics */ typedef struct pa_buffer_attr { - uint32_t maxlength; /**< Maximum length of the buffer */ - uint32_t tlength; /**< Playback only: target length of the buffer. The server tries to assure that at least tlength bytes are always available in the buffer */ - uint32_t prebuf; /**< Playback only: pre-buffering. The server does not start with playback before at least prebug bytes are available in the buffer */ - uint32_t minreq; /**< Playback only: minimum request. The server does not request less than minreq bytes from the client, instead waints until the buffer is free enough to request more bytes at once */ - uint32_t fragsize; /**< Recording only: fragment size. The server sends data in blocks of fragsize bytes size. Large values deminish interactivity with other operations on the connection context but decrease control overhead. */ + uint32_t maxlength; + /**< Maximum length of the buffer. Setting this to (uint32_t) -1 + * will initialize this to the maximum value supported by server, + * which is recommended. */ + + uint32_t tlength; + /**< Playback only: target length of the buffer. The server tries + * to assure that at least tlength bytes are always available in + * the per-stream server-side playback buffer. It is recommended + * to set this to (uint32_t) -1, which will initialize this to a + * value that is deemed sensible by the server. However, this + * value will default to something like 2s, i.e. for applications + * that have specific latency requirements this value should be + * set to the maximum latency that the application can deal + * with. When PA_STREAM_ADJUST_LATENCY is not set this value will + * influence only the per-stream playback buffer size. When + * PA_STREAM_ADJUST_LATENCY is set the overall latency of the sink + * plus the playback buffer size is configured to this value. Set + * PA_STREAM_ADJUST_LATENCY if you are interested in adjusting the + * overall latency. Don't set it if you are interested in + * configuring the server-side per-stream playback buffer + * size. */ + + uint32_t prebuf; + /**< Playback only: pre-buffering. The server does not start with + * playback before at least prebuf bytes are available in the + * buffer. It is recommended to set this to (uint32_t) -1, which + * will initialize this to the same value as tlength, whatever + * that may be. Initialize to 0 to enable manual start/stop + * control of the stream. This means that playback will not stop + * on underrun and playback will not start automatically. Instead + * pa_stream_cork() needs to be called explicitly. If you set + * this value to 0 you should also set PA_STREAM_START_CORKED. */ + + uint32_t minreq; + /**< Playback only: minimum request. The server does not request + * less than minreq bytes from the client, instead waits until the + * buffer is free enough to request more bytes at once. It is + * recommended to set this to (uint32_t) -1, which will initialize + * this to a value that is deemed sensible by the server. This + * should be set to a value that gives PulseAudio enough time to + * move the data from the per-stream playback buffer into the + * hardware playback buffer. */ + + uint32_t fragsize; + /**< Recording only: fragment size. The server sends data in + * blocks of fragsize bytes size. Large values diminish + * interactivity with other operations on the connection context + * but decrease control overhead. It is recommended to set this to + * (uint32_t) -1, which will initialize this to a value that is + * deemed sensible by the server. However, this value will default + * to something like 2s, i.e. for applications that have specific + * latency requirements this value should be set to the maximum + * latency that the application can deal with. If + * PA_STREAM_ADJUST_LATENCY is set the overall source latency will + * be adjusted according to this value. If it is not set the + * source latency is left unmodified. */ + } pa_buffer_attr; /** Error values as used by pa_context_errno(). Use pa_strerror() to convert these values to human readable strings */ @@ -149,7 +396,7 @@ enum { PA_ERR_EXIST, /**< Entity exists */ PA_ERR_NOENTITY, /**< No such entity */ PA_ERR_CONNECTIONREFUSED, /**< Connection refused */ - PA_ERR_PROTOCOL, /**< Protocol error */ + PA_ERR_PROTOCOL, /**< Protocol error */ PA_ERR_TIMEOUT, /**< Timeout */ PA_ERR_AUTHKEY, /**< No authorization key */ PA_ERR_INTERNAL, /**< Internal error */ @@ -159,54 +406,179 @@ enum { PA_ERR_MODINITFAILED, /**< Module initialization failed */ PA_ERR_BADSTATE, /**< Bad state */ PA_ERR_NODATA, /**< No data */ - PA_ERR_VERSION, /**< Incompatible protocol version \since 0.8 */ - PA_ERR_TOOLARGE, /**< Data too large \since 0.8.1 */ + PA_ERR_VERSION, /**< Incompatible protocol version */ + PA_ERR_TOOLARGE, /**< Data too large */ + PA_ERR_NOTSUPPORTED, /**< Operation not supported \since 0.9.5 */ + PA_ERR_UNKNOWN, /**< The error code was unknown to the client */ + PA_ERR_NOEXTENSION, /**< Extension does not exist. \since 0.9.12 */ + PA_ERR_OBSOLETE, /**< Obsolete functionality. \since 0.9.15 */ + PA_ERR_NOTIMPLEMENTED, /**< Missing implementation. \since 0.9.15 */ + PA_ERR_FORKED, /**< The caller forked without calling execve() and tried to reuse the context. \since 0.9.15 */ + PA_ERR_IO, /**< An IO error happened. \since 0.9.16 */ + PA_ERR_BUSY, /**< Device or resource busy. \since 0.9.17 */ PA_ERR_MAX /**< Not really an error but the first invalid error code */ }; +/** \cond fulldocs */ +#define PA_OK PA_OK +#define PA_ERR_ACCESS PA_ERR_ACCESS +#define PA_ERR_COMMAND PA_ERR_COMMAND +#define PA_ERR_INVALID PA_ERR_INVALID +#define PA_ERR_EXIST PA_ERR_EXIST +#define PA_ERR_NOENTITY PA_ERR_NOENTITY +#define PA_ERR_CONNECTIONREFUSED PA_ERR_CONNECTIONREFUSED +#define PA_ERR_PROTOCOL PA_ERR_PROTOCOL +#define PA_ERR_TIMEOUT PA_ERR_TIMEOUT +#define PA_ERR_AUTHKEY PA_ERR_AUTHKEY +#define PA_ERR_INTERNAL PA_ERR_INTERNAL +#define PA_ERR_CONNECTIONTERMINATED PA_ERR_CONNECTIONTERMINATED +#define PA_ERR_KILLED PA_ERR_KILLED +#define PA_ERR_INVALIDSERVER PA_ERR_INVALIDSERVER +#define PA_ERR_MODINITFAILED PA_ERR_MODINITFAILED +#define PA_ERR_BADSTATE PA_ERR_BADSTATE +#define PA_ERR_NODATA PA_ERR_NODATA +#define PA_ERR_VERSION PA_ERR_VERSION +#define PA_ERR_TOOLARGE PA_ERR_TOOLARGE +#define PA_ERR_NOTSUPPORTED PA_ERR_NOTSUPPORTED +#define PA_ERR_UNKNOWN PA_ERR_UNKNOWN +#define PA_ERR_NOEXTENSION PA_ERR_NOEXTENSION +#define PA_ERR_OBSOLETE PA_ERR_OBSOLETE +#define PA_ERR_NOTIMPLEMENTED PA_ERR_NOTIMPLEMENTED +#define PA_ERR_FORKED PA_ERR_FORKED +#define PA_ERR_MAX PA_ERR_MAX +/** \endcond */ + /** Subscription event mask, as used by pa_context_subscribe() */ typedef enum pa_subscription_mask { - PA_SUBSCRIPTION_MASK_NULL = 0, /**< No events */ - PA_SUBSCRIPTION_MASK_SINK = 1, /**< Sink events */ - PA_SUBSCRIPTION_MASK_SOURCE = 2, /**< Source events */ - PA_SUBSCRIPTION_MASK_SINK_INPUT = 4, /**< Sink input events */ - PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT = 8, /**< Source output events */ - PA_SUBSCRIPTION_MASK_MODULE = 16, /**< Module events */ - PA_SUBSCRIPTION_MASK_CLIENT = 32, /**< Client events */ - PA_SUBSCRIPTION_MASK_SAMPLE_CACHE = 64, /**< Sample cache events */ - PA_SUBSCRIPTION_MASK_SERVER = 128, /**< Other global server changes. \since 0.4 */ - PA_SUBSCRIPTION_MASK_AUTOLOAD = 256, /**< Autoload table events. \since 0.5 */ - PA_SUBSCRIPTION_MASK_ALL = 511 /**< Catch all events \since 0.8 */ + PA_SUBSCRIPTION_MASK_NULL = 0x0000U, + /**< No events */ + + PA_SUBSCRIPTION_MASK_SINK = 0x0001U, + /**< Sink events */ + + PA_SUBSCRIPTION_MASK_SOURCE = 0x0002U, + /**< Source events */ + + PA_SUBSCRIPTION_MASK_SINK_INPUT = 0x0004U, + /**< Sink input events */ + + PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT = 0x0008U, + /**< Source output events */ + + PA_SUBSCRIPTION_MASK_MODULE = 0x0010U, + /**< Module events */ + + PA_SUBSCRIPTION_MASK_CLIENT = 0x0020U, + /**< Client events */ + + PA_SUBSCRIPTION_MASK_SAMPLE_CACHE = 0x0040U, + /**< Sample cache events */ + + PA_SUBSCRIPTION_MASK_SERVER = 0x0080U, + /**< Other global server changes. */ + +/** \cond fulldocs */ + PA_SUBSCRIPTION_MASK_AUTOLOAD = 0x0100U, + /**< \deprecated Autoload table events. */ +/** \endcond */ + + PA_SUBSCRIPTION_MASK_CARD = 0x0200U, + /**< Card events. \since 0.9.15 */ + + PA_SUBSCRIPTION_MASK_ALL = 0x02ffU + /**< Catch all events */ } pa_subscription_mask_t; /** Subscription event types, as used by pa_context_subscribe() */ typedef enum pa_subscription_event_type { - PA_SUBSCRIPTION_EVENT_SINK = 0, /**< Event type: Sink */ - PA_SUBSCRIPTION_EVENT_SOURCE = 1, /**< Event type: Source */ - PA_SUBSCRIPTION_EVENT_SINK_INPUT = 2, /**< Event type: Sink input */ - PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT = 3, /**< Event type: Source output */ - PA_SUBSCRIPTION_EVENT_MODULE = 4, /**< Event type: Module */ - PA_SUBSCRIPTION_EVENT_CLIENT = 5, /**< Event type: Client */ - PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE = 6, /**< Event type: Sample cache item */ - PA_SUBSCRIPTION_EVENT_SERVER = 7, /**< Event type: Global server change, only occuring with PA_SUBSCRIPTION_EVENT_CHANGE. \since 0.4 */ - PA_SUBSCRIPTION_EVENT_AUTOLOAD = 8, /**< Event type: Autoload table changes. \since 0.5 */ - PA_SUBSCRIPTION_EVENT_FACILITY_MASK = 15, /**< A mask to extract the event type from an event value */ - - PA_SUBSCRIPTION_EVENT_NEW = 0, /**< A new object was created */ - PA_SUBSCRIPTION_EVENT_CHANGE = 16, /**< A property of the object was modified */ - PA_SUBSCRIPTION_EVENT_REMOVE = 32, /**< An object was removed */ - PA_SUBSCRIPTION_EVENT_TYPE_MASK = 16+32 /**< A mask to extract the event operation from an event value */ + PA_SUBSCRIPTION_EVENT_SINK = 0x0000U, + /**< Event type: Sink */ + + PA_SUBSCRIPTION_EVENT_SOURCE = 0x0001U, + /**< Event type: Source */ + + PA_SUBSCRIPTION_EVENT_SINK_INPUT = 0x0002U, + /**< Event type: Sink input */ + + PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT = 0x0003U, + /**< Event type: Source output */ + + PA_SUBSCRIPTION_EVENT_MODULE = 0x0004U, + /**< Event type: Module */ + + PA_SUBSCRIPTION_EVENT_CLIENT = 0x0005U, + /**< Event type: Client */ + + PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE = 0x0006U, + /**< Event type: Sample cache item */ + + PA_SUBSCRIPTION_EVENT_SERVER = 0x0007U, + /**< Event type: Global server change, only occurring with PA_SUBSCRIPTION_EVENT_CHANGE. */ + +/** \cond fulldocs */ + PA_SUBSCRIPTION_EVENT_AUTOLOAD = 0x0008U, + /**< \deprecated Event type: Autoload table changes. */ +/** \endcond */ + + PA_SUBSCRIPTION_EVENT_CARD = 0x0009U, + /**< Event type: Card \since 0.9.15 */ + + PA_SUBSCRIPTION_EVENT_FACILITY_MASK = 0x000FU, + /**< A mask to extract the event type from an event value */ + + PA_SUBSCRIPTION_EVENT_NEW = 0x0000U, + /**< A new object was created */ + + PA_SUBSCRIPTION_EVENT_CHANGE = 0x0010U, + /**< A property of the object was modified */ + + PA_SUBSCRIPTION_EVENT_REMOVE = 0x0020U, + /**< An object was removed */ + + PA_SUBSCRIPTION_EVENT_TYPE_MASK = 0x0030U + /**< A mask to extract the event operation from an event value */ + } pa_subscription_event_type_t; /** Return one if an event type t matches an event mask bitfield */ #define pa_subscription_match_flags(m, t) (!!((m) & (1 << ((t) & PA_SUBSCRIPTION_EVENT_FACILITY_MASK)))) +/** \cond fulldocs */ +#define PA_SUBSCRIPTION_MASK_NULL PA_SUBSCRIPTION_MASK_NULL +#define PA_SUBSCRIPTION_MASK_SINK PA_SUBSCRIPTION_MASK_SINK +#define PA_SUBSCRIPTION_MASK_SOURCE PA_SUBSCRIPTION_MASK_SOURCE +#define PA_SUBSCRIPTION_MASK_SINK_INPUT PA_SUBSCRIPTION_MASK_SINK_INPUT +#define PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT +#define PA_SUBSCRIPTION_MASK_MODULE PA_SUBSCRIPTION_MASK_MODULE +#define PA_SUBSCRIPTION_MASK_CLIENT PA_SUBSCRIPTION_MASK_CLIENT +#define PA_SUBSCRIPTION_MASK_SAMPLE_CACHE PA_SUBSCRIPTION_MASK_SAMPLE_CACHE +#define PA_SUBSCRIPTION_MASK_SERVER PA_SUBSCRIPTION_MASK_SERVER +#define PA_SUBSCRIPTION_MASK_AUTOLOAD PA_SUBSCRIPTION_MASK_AUTOLOAD +#define PA_SUBSCRIPTION_MASK_CARD PA_SUBSCRIPTION_MASK_CARD +#define PA_SUBSCRIPTION_MASK_ALL PA_SUBSCRIPTION_MASK_ALL +#define PA_SUBSCRIPTION_EVENT_SINK PA_SUBSCRIPTION_EVENT_SINK +#define PA_SUBSCRIPTION_EVENT_SOURCE PA_SUBSCRIPTION_EVENT_SOURCE +#define PA_SUBSCRIPTION_EVENT_SINK_INPUT PA_SUBSCRIPTION_EVENT_SINK_INPUT +#define PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT +#define PA_SUBSCRIPTION_EVENT_MODULE PA_SUBSCRIPTION_EVENT_MODULE +#define PA_SUBSCRIPTION_EVENT_CLIENT PA_SUBSCRIPTION_EVENT_CLIENT +#define PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE +#define PA_SUBSCRIPTION_EVENT_SERVER PA_SUBSCRIPTION_EVENT_SERVER +#define PA_SUBSCRIPTION_EVENT_AUTOLOAD PA_SUBSCRIPTION_EVENT_AUTOLOAD +#define PA_SUBSCRIPTION_EVENT_CARD PA_SUBSCRIPTION_EVENT_CARD +#define PA_SUBSCRIPTION_EVENT_FACILITY_MASK PA_SUBSCRIPTION_EVENT_FACILITY_MASK +#define PA_SUBSCRIPTION_EVENT_NEW PA_SUBSCRIPTION_EVENT_NEW +#define PA_SUBSCRIPTION_EVENT_CHANGE PA_SUBSCRIPTION_EVENT_CHANGE +#define PA_SUBSCRIPTION_EVENT_REMOVE PA_SUBSCRIPTION_EVENT_REMOVE +#define PA_SUBSCRIPTION_EVENT_TYPE_MASK PA_SUBSCRIPTION_EVENT_TYPE_MASK +/** \endcond */ + /** A structure for all kinds of timing information of a stream. See * pa_stream_update_timing_info() and pa_stream_get_timing_info(). The * total output latency a sample that is written with * pa_stream_write() takes to be played may be estimated by * sink_usec+buffer_usec+transport_usec. (where buffer_usec is defined - * as pa_bytes_to_usec(write_index-read_index)) The output buffer + * as pa_bytes_to_usec(write_index-read_index)) The output buffer * which buffer_usec relates to may be manipulated freely (with * pa_stream_write()'s seek argument, pa_stream_flush() and friends), * the buffers sink_usec and source_usec relate to are first-in @@ -216,53 +588,76 @@ typedef enum pa_subscription_event_type { * source_usec+buffer_usec+transport_usec-sink_usec. (Take care of * sign issues!) When connected to a monitor source sink_usec contains * the latency of the owning sink. The two latency estimations - * described here are implemented in pa_stream_get_latency().*/ + * described here are implemented in pa_stream_get_latency(). Please + * note that this structure can be extended as part of evolutionary + * API updates at any time in any new release.*/ typedef struct pa_timing_info { - struct timeval timestamp; /**< The time when this timing info structure was current */ - int synchronized_clocks; /**< Non-zero if the local and the - * remote machine have synchronized - * clocks. If synchronized clocks are - * detected transport_usec becomes much - * more reliable. However, the code that - * detects synchronized clocks is very - * limited und unreliable itself. \since - * 0.5 */ - - pa_usec_t sink_usec; /**< Time in usecs a sample takes to be played on the sink. For playback streams and record streams connected to a monitor source. */ - pa_usec_t source_usec; /**< Time in usecs a sample takes from being recorded to being delivered to the application. Only for record streams. \since 0.5*/ - pa_usec_t transport_usec; /**< Estimated time in usecs a sample takes to be transferred to/from the daemon. For both playback and record streams. \since 0.5 */ - - int playing; /**< Non-zero when the stream is currently playing. Only for playback streams. */ - - int write_index_corrupt; /**< Non-zero if write_index is not - * up-to-date because a local write - * command that corrupted it has been - * issued in the time since this latency - * info was current . Only write - * commands with SEEK_RELATIVE_ON_READ - * and SEEK_RELATIVE_END can corrupt - * write_index. \since 0.8 */ - int64_t write_index; /**< Current write index into the - * playback buffer in bytes. Think twice before - * using this for seeking purposes: it - * might be out of date a the time you - * want to use it. Consider using - * PA_SEEK_RELATIVE instead. \since - * 0.8 */ - - int read_index_corrupt; /**< Non-zero if read_index is not - * up-to-date because a local pause or - * flush request that corrupted it has - * been issued in the time since this - * latency info was current. \since 0.8 */ - - int64_t read_index; /**< Current read index into the - * playback buffer in bytes. Think twice before - * using this for seeking purposes: it - * might be out of date a the time you - * want to use it. Consider using - * PA_SEEK_RELATIVE_ON_READ - * instead. \since 0.8 */ + struct timeval timestamp; + /**< The time when this timing info structure was current */ + + int synchronized_clocks; + /**< Non-zero if the local and the remote machine have + * synchronized clocks. If synchronized clocks are detected + * transport_usec becomes much more reliable. However, the code + * that detects synchronized clocks is very limited and unreliable + * itself. */ + + pa_usec_t sink_usec; + /**< Time in usecs a sample takes to be played on the sink. For + * playback streams and record streams connected to a monitor + * source. */ + + pa_usec_t source_usec; + /**< Time in usecs a sample takes from being recorded to being + * delivered to the application. Only for record streams. */ + + pa_usec_t transport_usec; + /**< Estimated time in usecs a sample takes to be transferred + * to/from the daemon. For both playback and record streams. */ + + int playing; + /**< Non-zero when the stream is currently not underrun and data + * is being passed on to the device. Only for playback + * streams. This field does not say whether the data is actually + * already being played. To determine this check whether + * since_underrun (converted to usec) is larger than sink_usec.*/ + + int write_index_corrupt; + /**< Non-zero if write_index is not up-to-date because a local + * write command that corrupted it has been issued in the time + * since this latency info was current . Only write commands with + * SEEK_RELATIVE_ON_READ and SEEK_RELATIVE_END can corrupt + * write_index. */ + + int64_t write_index; + /**< Current write index into the playback buffer in bytes. Think + * twice before using this for seeking purposes: it might be out + * of date a the time you want to use it. Consider using + * PA_SEEK_RELATIVE instead. */ + + int read_index_corrupt; + /**< Non-zero if read_index is not up-to-date because a local + * pause or flush request that corrupted it has been issued in the + * time since this latency info was current. */ + + int64_t read_index; + /**< Current read index into the playback buffer in bytes. Think + * twice before using this for seeking purposes: it might be out + * of date a the time you want to use it. Consider using + * PA_SEEK_RELATIVE_ON_READ instead. */ + + pa_usec_t configured_sink_usec; + /**< The configured latency for the sink. \since 0.9.11 */ + + pa_usec_t configured_source_usec; + /**< The configured latency for the source. \since 0.9.11 */ + + int64_t since_underrun; + /**< Bytes that were handed to the sink since the last underrun + * happened, or since playback started again after the last + * underrun. playing will tell you which case it is. \since + * 0.9.11 */ + } pa_timing_info; /** A structure for the spawn api. This may be used to integrate auto @@ -271,44 +666,286 @@ typedef struct pa_timing_info { * waitpid() is used on the child's PID. The spawn routine will not * block or ignore SIGCHLD signals, since this cannot be done in a * thread compatible way. You might have to do this in - * prefork/postfork. \since 0.4 */ + * prefork/postfork. */ typedef struct pa_spawn_api { - void (*prefork)(void); /**< Is called just before the fork in the parent process. May be NULL. */ - void (*postfork)(void); /**< Is called immediately after the fork in the parent process. May be NULL.*/ - void (*atfork)(void); /**< Is called immediately after the - * fork in the child process. May be - * NULL. It is not safe to close all - * file descriptors in this function - * unconditionally, since a UNIX socket - * (created using socketpair()) is - * passed to the new process. */ + void (*prefork)(void); + /**< Is called just before the fork in the parent process. May be + * NULL. */ + + void (*postfork)(void); + /**< Is called immediately after the fork in the parent + * process. May be NULL.*/ + + void (*atfork)(void); + /**< Is called immediately after the fork in the child + * process. May be NULL. It is not safe to close all file + * descriptors in this function unconditionally, since a UNIX + * socket (created using socketpair()) is passed to the new + * process. */ } pa_spawn_api; -/** Seek type for pa_stream_write(). \since 0.8*/ +/** Seek type for pa_stream_write(). */ typedef enum pa_seek_mode { - PA_SEEK_RELATIVE = 0, /**< Seek relatively to the write index */ - PA_SEEK_ABSOLUTE = 1, /**< Seek relatively to the start of the buffer queue */ - PA_SEEK_RELATIVE_ON_READ = 2, /**< Seek relatively to the read index. */ - PA_SEEK_RELATIVE_END = 3 /**< Seek relatively to the current end of the buffer queue. */ + PA_SEEK_RELATIVE = 0, + /**< Seek relatively to the write index */ + + PA_SEEK_ABSOLUTE = 1, + /**< Seek relatively to the start of the buffer queue */ + + PA_SEEK_RELATIVE_ON_READ = 2, + /**< Seek relatively to the read index. */ + + PA_SEEK_RELATIVE_END = 3 + /**< Seek relatively to the current end of the buffer queue. */ } pa_seek_mode_t; -/** Special sink flags. \since 0.8 */ +/** \cond fulldocs */ +#define PA_SEEK_RELATIVE PA_SEEK_RELATIVE +#define PA_SEEK_ABSOLUTE PA_SEEK_ABSOLUTE +#define PA_SEEK_RELATIVE_ON_READ PA_SEEK_RELATIVE_ON_READ +#define PA_SEEK_RELATIVE_END PA_SEEK_RELATIVE_END +/** \endcond */ + +/** Special sink flags. */ typedef enum pa_sink_flags { - PA_SINK_HW_VOLUME_CTRL = 1, /**< Supports hardware volume control */ - PA_SINK_LATENCY = 2, /**< Supports latency querying */ - PA_SINK_HARDWARE = 4 /**< Is a hardware sink of some kind, in contrast to "virtual"/software sinks \since 0.9.3 */ + PA_SINK_NOFLAGS = 0x0000U, + /**< Flag to pass when no specific options are needed (used to avoid casting) \since 0.9.19 */ + + PA_SINK_HW_VOLUME_CTRL = 0x0001U, + /**< Supports hardware volume control */ + + PA_SINK_LATENCY = 0x0002U, + /**< Supports latency querying */ + + PA_SINK_HARDWARE = 0x0004U, + /**< Is a hardware sink of some kind, in contrast to + * "virtual"/software sinks \since 0.9.3 */ + + PA_SINK_NETWORK = 0x0008U, + /**< Is a networked sink of some kind. \since 0.9.7 */ + + PA_SINK_HW_MUTE_CTRL = 0x0010U, + /**< Supports hardware mute control \since 0.9.11 */ + + PA_SINK_DECIBEL_VOLUME = 0x0020U, + /**< Volume can be translated to dB with pa_sw_volume_to_dB() + * \since 0.9.11 */ + + PA_SINK_FLAT_VOLUME = 0x0040U, + /**< This sink is in flat volume mode, i.e. always the maximum of + * the volume of all connected inputs. \since 0.9.15 */ + + PA_SINK_DYNAMIC_LATENCY = 0x0080U, + /**< The latency can be adjusted dynamically depending on the + * needs of the connected streams. \since 0.9.15 */ + + PA_SINK_SYNC_VOLUME = 0x0100U, + /**< The HW volume changes are syncronized with SW volume. + * \since 1.0 */ + +/** \cond fulldocs */ + /* PRIVATE: Server-side values -- do not try to use these at client-side. + * The server will filter out these flags anyway, so you should never see + * these flags in sinks. */ + + PA_SINK_SHARE_VOLUME_WITH_MASTER = 0x0200U, + /**< This sink shares the volume with the master sink (used by some filter + * sinks). */ +/** \endcond */ + } pa_sink_flags_t; -/** Special source flags. \since 0.8 */ +/** \cond fulldocs */ +#define PA_SINK_HW_VOLUME_CTRL PA_SINK_HW_VOLUME_CTRL +#define PA_SINK_LATENCY PA_SINK_LATENCY +#define PA_SINK_HARDWARE PA_SINK_HARDWARE +#define PA_SINK_NETWORK PA_SINK_NETWORK +#define PA_SINK_HW_MUTE_CTRL PA_SINK_HW_MUTE_CTRL +#define PA_SINK_DECIBEL_VOLUME PA_SINK_DECIBEL_VOLUME +#define PA_SINK_FLAT_VOLUME PA_SINK_FLAT_VOLUME +#define PA_SINK_DYNAMIC_LATENCY PA_SINK_DYNAMIC_LATENCY +#define PA_SINK_SYNC_VOLUME PA_SINK_SYNC_VOLUME +#define PA_SINK_SHARE_VOLUME_WITH_MASTER PA_SINK_SHARE_VOLUME_WITH_MASTER + +/** \endcond */ + +/** Sink state. \since 0.9.15 */ +typedef enum pa_sink_state { /* enum serialized in u8 */ + PA_SINK_INVALID_STATE = -1, + /**< This state is used when the server does not support sink state introspection \since 0.9.15 */ + + PA_SINK_RUNNING = 0, + /**< Running, sink is playing and used by at least one non-corked sink-input \since 0.9.15 */ + + PA_SINK_IDLE = 1, + /**< When idle, the sink is playing but there is no non-corked sink-input attached to it \since 0.9.15 */ + + PA_SINK_SUSPENDED = 2, + /**< When suspended, actual sink access can be closed, for instance \since 0.9.15 */ + +/** \cond fulldocs */ + /* PRIVATE: Server-side values -- DO NOT USE THIS ON THE CLIENT + * SIDE! These values are *not* considered part of the official PA + * API/ABI. If you use them your application might break when PA + * is upgraded. Also, please note that these values are not useful + * on the client side anyway. */ + + PA_SINK_INIT = -2, + /**< Initialization state */ + + PA_SINK_UNLINKED = -3 + /**< The state when the sink is getting unregistered and removed from client access */ +/** \endcond */ + +} pa_sink_state_t; + +/** Returns non-zero if sink is playing: running or idle. \since 0.9.15 */ +static inline int PA_SINK_IS_OPENED(pa_sink_state_t x) { + return x == PA_SINK_RUNNING || x == PA_SINK_IDLE; +} + +/** \cond fulldocs */ +#define PA_SINK_INVALID_STATE PA_SINK_INVALID_STATE +#define PA_SINK_RUNNING PA_SINK_RUNNING +#define PA_SINK_IDLE PA_SINK_IDLE +#define PA_SINK_SUSPENDED PA_SINK_SUSPENDED +#define PA_SINK_INIT PA_SINK_INIT +#define PA_SINK_UNLINKED PA_SINK_UNLINKED +#define PA_SINK_IS_OPENED PA_SINK_IS_OPENED +/** \endcond */ + +/** Special source flags. */ typedef enum pa_source_flags { - PA_SOURCE_HW_VOLUME_CTRL = 1, /**< Supports hardware volume control */ - PA_SOURCE_LATENCY = 2, /**< Supports latency querying */ - PA_SOURCE_HARDWARE = 4 /**< Is a hardware source of some kind, in contrast to "virtual"/software source \since 0.9.3 */ + PA_SOURCE_NOFLAGS = 0x0000U, + /**< Flag to pass when no specific options are needed (used to avoid casting) \since 0.9.19 */ + + PA_SOURCE_HW_VOLUME_CTRL = 0x0001U, + /**< Supports hardware volume control */ + + PA_SOURCE_LATENCY = 0x0002U, + /**< Supports latency querying */ + + PA_SOURCE_HARDWARE = 0x0004U, + /**< Is a hardware source of some kind, in contrast to + * "virtual"/software source \since 0.9.3 */ + + PA_SOURCE_NETWORK = 0x0008U, + /**< Is a networked source of some kind. \since 0.9.7 */ + + PA_SOURCE_HW_MUTE_CTRL = 0x0010U, + /**< Supports hardware mute control \since 0.9.11 */ + + PA_SOURCE_DECIBEL_VOLUME = 0x0020U, + /**< Volume can be translated to dB with pa_sw_volume_to_dB() + * \since 0.9.11 */ + + PA_SOURCE_DYNAMIC_LATENCY = 0x0040U, + /**< The latency can be adjusted dynamically depending on the + * needs of the connected streams. \since 0.9.15 */ + + PA_SOURCE_FLAT_VOLUME = 0x0080U, + /**< This source is in flat volume mode, i.e. always the maximum of + * the volume of all connected outputs. \since 1.0 */ + + PA_SOURCE_PASSTHROUGH = 0x0100U, + /**< This sink has support for passthrough mode. The data will be left + * as is and not reformatted, resampled, mixed. + * \since 1.0 */ + + PA_SOURCE_SYNC_VOLUME = 0x0200U, + /**< The HW volume changes are syncronized with SW volume. + * \since 1.0 */ + +/** \cond fulldocs */ + /* PRIVATE: Server-side values -- do not try to use these at client-side. + * The server will filter out these flags anyway, so you should never see + * these flags in sources. */ + + PA_SOURCE_SHARE_VOLUME_WITH_MASTER = 0x0400U, + /**< This source shares the volume with the master source (used by some filter + * sources). */ } pa_source_flags_t; +/** \cond fulldocs */ +#define PA_SOURCE_HW_VOLUME_CTRL PA_SOURCE_HW_VOLUME_CTRL +#define PA_SOURCE_LATENCY PA_SOURCE_LATENCY +#define PA_SOURCE_HARDWARE PA_SOURCE_HARDWARE +#define PA_SOURCE_NETWORK PA_SOURCE_NETWORK +#define PA_SOURCE_HW_MUTE_CTRL PA_SOURCE_HW_MUTE_CTRL +#define PA_SOURCE_DECIBEL_VOLUME PA_SOURCE_DECIBEL_VOLUME +#define PA_SOURCE_DYNAMIC_LATENCY PA_SOURCE_DYNAMIC_LATENCY +#define PA_SOURCE_FLAT_VOLUME PA_SOURCE_FLAT_VOLUME +#define PA_SOURCE_PASSTHROUGH PA_SOURCE_PASSTHROUGH +#define PA_SOURCE_SYNC_VOLUME PA_SOURCE_SYNC_VOLUME +#define PA_SOURCE_SHARE_VOLUME_WITH_MASTER PA_SOURCE_SHARE_VOLUME_WITH_MASTER + +/** \endcond */ + +/** Source state. \since 0.9.15 */ +typedef enum pa_source_state { + PA_SOURCE_INVALID_STATE = -1, + /**< This state is used when the server does not support source state introspection \since 0.9.15 */ + + PA_SOURCE_RUNNING = 0, + /**< Running, source is recording and used by at least one non-corked source-output \since 0.9.15 */ + + PA_SOURCE_IDLE = 1, + /**< When idle, the source is still recording but there is no non-corked source-output \since 0.9.15 */ + + PA_SOURCE_SUSPENDED = 2, + /**< When suspended, actual source access can be closed, for instance \since 0.9.15 */ + +/** \cond fulldocs */ + /* PRIVATE: Server-side values -- DO NOT USE THIS ON THE CLIENT + * SIDE! These values are *not* considered part of the official PA + * API/ABI. If you use them your application might break when PA + * is upgraded. Also, please note that these values are not useful + * on the client side anyway. */ + + PA_SOURCE_INIT = -2, + /**< Initialization state */ + + PA_SOURCE_UNLINKED = -3 + /**< The state when the source is getting unregistered and removed from client access */ +/** \endcond */ + +} pa_source_state_t; + +/** Returns non-zero if source is recording: running or idle. \since 0.9.15 */ +static inline int PA_SOURCE_IS_OPENED(pa_source_state_t x) { + return x == PA_SOURCE_RUNNING || x == PA_SOURCE_IDLE; +} + +/** \cond fulldocs */ +#define PA_SOURCE_INVALID_STATE PA_SOURCE_INVALID_STATE +#define PA_SOURCE_RUNNING PA_SOURCE_RUNNING +#define PA_SOURCE_IDLE PA_SOURCE_IDLE +#define PA_SOURCE_SUSPENDED PA_SOURCE_SUSPENDED +#define PA_SOURCE_INIT PA_SOURCE_INIT +#define PA_SOURCE_UNLINKED PA_SOURCE_UNLINKED +#define PA_SOURCE_IS_OPENED PA_SOURCE_IS_OPENED +/** \endcond */ + /** A generic free() like callback prototype */ typedef void (*pa_free_cb_t)(void *p); +/** A stream policy/meta event requesting that an application should + * cork a specific stream. See pa_stream_event_cb_t for more + * information, \since 0.9.15 */ +#define PA_STREAM_EVENT_REQUEST_CORK "request-cork" + +/** A stream policy/meta event requesting that an application should + * cork a specific stream. See pa_stream_event_cb_t for more + * information, \since 0.9.15 */ +#define PA_STREAM_EVENT_REQUEST_UNCORK "request-uncork" + +/** A stream event notifying that the stream is going to be + * disconnected because the underlying sink changed and no longer + * supports the format that was originally negotiated. Clients need + * to connect a new stream to renegotiate a format and continue + * playback, \since 1.0 */ +#define PA_STREAM_EVENT_FORMAT_LOST "format-lost" + PA_C_DECL_END #endif |