pa_jack.c File Reference

#include <string.h>
#include <regex.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <math.h>
#include <semaphore.h>
#include <jack/types.h>
#include <jack/jack.h>
#include "pa_util.h"
#include "pa_hostapi.h"
#include "pa_stream.h"
#include "pa_process.h"
#include "pa_allocation.h"
#include "pa_cpuload.h"
#include "pa_ringbuffer.h"
#include "pa_debugprint.h"

Data Structures
struct	PaJackHostApiRepresentation
struct	PaJackStream

Macros
#define	STRINGIZE_HELPER(expr)   #expr
#define	STRINGIZE(expr)   STRINGIZE_HELPER(expr)
#define	ENSURE_PA(expr)
#define	UNLESS(expr, code)
#define	ASSERT_CALL(expr, success)
#define	JACK_PORT_TYPE_FILTER   "audio"
#define	TRUE   1
#define	FALSE   0
#define	ABS(x)   ( (x) > 0 ? (x) : -(x) )
#define	ABS(x)   ( (x) > 0 ? (x) : -(x) )

Typedefs
typedef struct PaJackStream	PaJackStream

Functions
PaError	PaJack_Initialize (PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex)
PaError	PaJack_SetClientName (const char *name)
PaError	PaJack_GetClientName (const char **clientName)

Macro Definition Documentation

#define ABS

(

x

)

( (x) > 0 ? (x) : -(x) )

#define ABS

(

x

)

( (x) > 0 ? (x) : -(x) )

#define ASSERT_CALL	(		expr,
			success
	)

Value:

do { \
        int err = (expr); \
        assert( err == success ); \
    } while( 0 )

Referenced by PaJack_Initialize().

#define ENSURE_PA

(

expr

)

Value:

do { \
        PaError paErr; \
        if( (paErr = (expr)) < paNoError ) \
        { \
            if( (paErr) == paUnanticipatedHostError && pthread_self() == mainThread_ ) \
            { \
                const char *err = jackErr_; \
                if (! err ) err = "unknown error"; \
                PaUtil_SetLastHostErrorInfo( paJACK, -1, err ); \
            } \
            PaUtil_DebugPrint(( "Expression '" #expr "' failed in '" __FILE__ "', line: " STRINGIZE( __LINE__ ) "\n" )); \
            result = paErr; \
            goto error; \
        } \
    } while( 0 )

Referenced by PaJack_GetClientName(), and PaJack_Initialize().

#define FALSE   0

Referenced by PaWasapi_ThreadPriorityBoost(), PaWasapi_ThreadPriorityRevert(), ProcessingThread(), ProcessingThreadProc(), ProcThreadEvent(), and ProcThreadPoll().

#define JACK_PORT_TYPE_FILTER   "audio"

#define STRINGIZE

(

expr

)

STRINGIZE_HELPER(expr)

#define STRINGIZE_HELPER

(

expr

)

#expr

#define TRUE   1

Referenced by PaWasapi_GetAudioClient(), PaWasapi_GetDeviceCurrentFormat(), ProcessingThread(), ProcessingThreadProc(), ProcThreadEvent(), and ProcThreadPoll().

#define UNLESS	(		expr,
			code
	)

Value:

do { \
        if( (expr) == 0 ) \
        { \
            if( (code) == paUnanticipatedHostError && pthread_self() == mainThread_ ) \
            { \
                const char *err = jackErr_; \
                if (!err) err = "unknown error"; \
                PaUtil_SetLastHostErrorInfo( paJACK, -1, err ); \
            } \
            PaUtil_DebugPrint(( "Expression '" #expr "' failed in '" __FILE__ "', line: " STRINGIZE( __LINE__ ) "\n" )); \
            result = (code); \
            goto error; \
        } \
    } while( 0 )

Referenced by PaJack_Initialize().

Typedef Documentation

typedef struct PaJackStream PaJackStream

Function Documentation

PaError PaJack_GetClientName

(

const char **

clientName

)

Get the JACK client name used by PA JACK.

The caller is responsible for freeing the returned pointer.

References ENSURE_PA, PaJackHostApiRepresentation::jack_client, paJACK, paNoError, and PaUtil_GetHostApiRepresentation().

PaError PaJack_Initialize	(	PaUtilHostApiRepresentation **	hostApi,
		PaHostApiIndex	hostApiIndex
	)

References ASSERT_CALL, PaJackHostApiRepresentation::blockingStreamInterface, PaJackHostApiRepresentation::callbackStreamInterface, PaJackHostApiRepresentation::commonHostApiRep, PaJackHostApiRepresentation::cond, PaJackHostApiRepresentation::deviceInfoMemory, ENSURE_PA, PaJackHostApiRepresentation::hostApiIndex, PaUtilHostApiRepresentation::info, PaJackHostApiRepresentation::inputBase, PaJackHostApiRepresentation::jack_buffer_size, PaJackHostApiRepresentation::jack_client, PaJackHostApiRepresentation::jackIsDown, PaJackHostApiRepresentation::mtx, PaJackHostApiRepresentation::outputBase, PA_DEBUG, paInsufficientMemory, paJACK, paNoError, paUnanticipatedHostError, PaUtil_AllocateMemory(), PaUtil_CreateAllocationGroup(), PaUtil_DestroyAllocationGroup(), PaUtil_DummyGetCpuLoad(), PaUtil_DummyGetReadAvailable(), PaUtil_DummyGetWriteAvailable(), PaUtil_DummyRead(), PaUtil_DummyWrite(), PaUtil_FreeAllAllocations(), PaUtil_FreeMemory(), PaUtil_InitializeStreamInterface(), PaJackHostApiRepresentation::processQueue, PaHostApiInfo::structVersion, PaJackHostApiRepresentation::toAdd, PaJackHostApiRepresentation::toRemove, UNLESS, and PaJackHostApiRepresentation::xrun.

PaError PaJack_SetClientName

(

const char *

name

)

Set the JACK client name.

During Pa_Initialize, When PA JACK connects as a client of the JACK server, it requests a certain name, which is for instance prepended to port names. By default this name is "PortAudio". The JACK server may append a suffix to the client name, in order to avoid clashes among clients that try to connect with the same name (e.g., different PA JACK clients).

This function must be called before Pa_Initialize, otherwise it won't have any effect. Note that the string is not copied, but instead referenced directly, so it must not be freed for as long as PA might need it.

See Also

PaJack_GetClientName

References paInvalidFlag, and paNoError.