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Initial checkin of veejay 1.4
git-svn-id: svn://code.dyne.org/veejay/trunk@1172 eb8d1916-c9e9-0310-b8de-cf0c9472ead5
This commit is contained in:
Niels Elburg
147
veejay-current/veejay-server/bio2jack/bio2jack.h
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147
veejay-current/veejay-server/bio2jack/bio2jack.h
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/*
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* Copyright 2003-2004 Chris Morgan <cmorgan@alum.wpi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _H_JACK_OUT_H
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#define _H_JACK_OUT_H
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#include <jack/jack.h>
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#ifdef __cplusplus
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extern "C" {
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#else
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#define bool long
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#endif
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#define ERR_SUCCESS 0
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#define ERR_OPENING_JACK 1
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#define ERR_RATE_MISMATCH 2
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#define ERR_BYTES_PER_OUTPUT_FRAME_INVALID 3
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#define ERR_BYTES_PER_INPUT_FRAME_INVALID 4
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#define ERR_TOO_MANY_OUTPUT_CHANNELS 5
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#define ERR_PORT_NAME_OUTPUT_CHANNEL_MISMATCH 6
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#define ERR_PORT_NOT_FOUND 7
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#define ERR_TOO_MANY_INPUT_CHANNELS 8
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#define ERR_PORT_NAME_INPUT_CHANNEL_MISMATCH 9
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enum status_enum { PLAYING, PAUSED, STOPPED, CLOSED, RESET };
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enum pos_enum { BYTES, MILLISECONDS };
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#define PLAYED 1 /* played out of the speakers(estimated value but should be close */
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#define WRITTEN_TO_JACK 2 /* amount written out to jack */
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#define WRITTEN 3 /* amount written to the bio2jack device */
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/**********************/
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/* External functions */
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void JACK_Init(void); /* call this before any other bio2jack calls */
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void JACK_DoSampleRateConversion(bool value); /* whether the next device that's Open()d should do
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sample rate conversion if necessary */
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void JACK_SetSampleRateConversionFunction(int converter); /* which SRC converter function should be used
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for the next Open()d device */
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int JACK_Open(int *deviceID, unsigned int bits_per_sample, unsigned long *rate, int channels); /* Note: defaults to 0 input channels
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if you need input (record) use OpenEx
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instead */
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int JACK_OpenEx(int *deviceID, unsigned int bits_per_channel,
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unsigned long *rate,
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unsigned int input_channels, unsigned int output_channels,
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const char **jack_port_name, unsigned int jack_port_name_count,
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unsigned long jack_port_flags);
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int JACK_Close(int deviceID); /* return 0 for success */
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void JACK_Reset(int deviceID); /* free all buffered data and reset several values in the device */
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long JACK_Write(int deviceID, unsigned char *data, unsigned long bytes); /* returns the number of bytes written */
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long JACK_Read(int deviceID, unsigned char *data, unsigned long bytes); /* returns the number of bytes read */
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/* state setting values */
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/* set/get the written/played/buffered value based on a byte or millisecond input value */
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long JACK_GetPosition(int deviceID, enum pos_enum position, int type);
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void JACK_SetPosition(int deviceID, enum pos_enum position, long value);
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long JACK_GetJackLatency(int deviceID); /* deprectated, you probably want JACK_GetJackOutputLatency */
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long JACK_GetJackOutputLatency(int deviceID); /* return the output latency in frames */
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long JACK_GetJackInputLatency(int deviceID); /* return the input latency in frames */
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int JACK_SetState(int deviceID, enum status_enum state); /* playing, paused, stopped */
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enum status_enum JACK_GetState(int deviceID);
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long JACK_GetMaxOutputBufferedBytes(int deviceID);
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long JACK_GetMaxInputBufferedBytes(int deviceID);
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/* bytes that jack requests during each callback */
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unsigned long JACK_GetJackBufferedBytes(int deviceID);
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/* Properties of the jack driver */
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/* linear means 0 volume is silence, 100 is full volume */
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/* dbAttenuation means 0 volume is 0dB attenuation */
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/* Bio2jack defaults to linear */
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/* Note: volume controls only effect output channels for now */
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enum JACK_VOLUME_TYPE { linear, dbAttenuation };
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enum JACK_VOLUME_TYPE JACK_SetVolumeEffectType(int deviceID,
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enum JACK_VOLUME_TYPE type);
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int JACK_SetAllVolume(int deviceID, unsigned int volume); /* returns 0 on success */
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int JACK_SetVolumeForChannel(int deviceID, unsigned int channel, unsigned int volume);
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void JACK_GetVolumeForChannel(int deviceID, unsigned int channel, unsigned int *volume);
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unsigned long JACK_GetOutputBytesPerSecond(int deviceID); /* bytes_per_output_frame * sample_rate */
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unsigned long JACK_GetInputBytesPerSecond(int deviceID); /* bytes_per_input_frame * sample_rate */
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unsigned long JACK_GetBytesStored(int deviceID); /* bytes currently buffered in the output buffer */
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unsigned long JACK_GetBytesFreeSpace(int deviceID); /* bytes of free space in the output buffer */
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unsigned long JACK_GetBytesUsedSpace(int deviceID); /* bytes of space used in the input buffer */
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unsigned long JACK_GetBytesPerOutputFrame(int deviceID);
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unsigned long JACK_GetBytesPerInputFrame(int deviceID);
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/* Note: these will probably be removed in a future release */
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int JACK_GetNumInputChannels(int deviceID);
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int JACK_GetNumOutputChannels(int deviceID);
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long JACK_GetSampleRate(int deviceID); /* samples per second */
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void JACK_SetClientName(char *name); /* sets the name that bio2jack will use when
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creating a new jack client. name_%pid%_%deviceID%%counter%
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will be used
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NOTE: this defaults to name = bio2jack
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NOTE: we limit the size of the client name to
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jack_client_name_size() */
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enum JACK_PORT_CONNECTION_MODE
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{
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CONNECT_ALL, /* connect to all avaliable ports */
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CONNECT_OUTPUT, /* connect only to the ports we need for output */
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CONNECT_NONE /* don't connect to any ports */
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};
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/* set the mode for port connections */
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/* defaults to CONNECT_ALL */
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void JACK_SetPortConnectionMode(enum JACK_PORT_CONNECTION_MODE mode);
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long JACK_OutputStatus(int deviceID,long int *sec, long int *usec);
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#ifdef __cplusplus
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}
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#endif
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#endif /* #ifndef JACK_OUT_H */
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