[pulseaudio-commits] r1848 - in /branches/lennart/src: Makefile.am modules/ladspa.h modules/module-ladspa-sink.c
svnmailer-noreply at 0pointer.de
svnmailer-noreply at 0pointer.de
Mon Sep 17 15:42:21 PDT 2007
Author: lennart
Date: Tue Sep 18 00:42:20 2007
New Revision: 1848
URL: http://0pointer.de/cgi-bin/viewcvs.cgi?rev=1848&root=pulseaudio&view=rev
Log:
add LADSPA sink than can be piggy-backed ontop of another sink
Added:
branches/lennart/src/modules/ladspa.h
branches/lennart/src/modules/module-ladspa-sink.c (with props)
Modified:
branches/lennart/src/Makefile.am
Modified: branches/lennart/src/Makefile.am
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/lennart/src/Makefile.am?rev=1848&root=pulseaudio&r1=1847&r2=1848&view=diff
==============================================================================
--- branches/lennart/src/Makefile.am (original)
+++ branches/lennart/src/Makefile.am Tue Sep 18 00:42:20 2007
@@ -940,7 +940,8 @@
module-native-protocol-fd.la \
module-esound-protocol-tcp.la \
module-combine.la \
- module-remap-sink.la
+ module-remap-sink.la \
+ module-ladspa-sink.la
# module-tunnel-sink.la \
# module-tunnel-source.la \
# module-esound-sink.la
@@ -1061,6 +1062,7 @@
modules/module-sine-symdef.h \
modules/module-combine-symdef.h \
modules/module-remap-sink-symdef.h \
+ modules/module-ladspa-sink-symdef.h \
modules/module-esound-compat-spawnfd-symdef.h \
modules/module-esound-compat-spawnpid-symdef.h \
modules/module-match-symdef.h \
@@ -1213,6 +1215,11 @@
module_remap_sink_la_LDFLAGS = -module -avoid-version
module_remap_sink_la_LIBADD = $(AM_LIBADD) libpulsecore.la
+module_ladspa_sink_la_SOURCES = modules/module-ladspa-sink.c modules/ladspa.h
+module_ladspa_sink_la_CFLAGS = -DLADSPA_PATH=\"$(libdir)/ladspa:/usr/local/lib/ladspa:/usr/lib/ladspa\" $(AM_CFLAGS)
+module_ladspa_sink_la_LDFLAGS = -module -avoid-version
+module_ladspa_sink_la_LIBADD = $(AM_LIBADD) libpulsecore.la
+
module_match_la_SOURCES = modules/module-match.c
module_match_la_LDFLAGS = -module -avoid-version
module_match_la_LIBADD = $(AM_LIBADD) libpulsecore.la
Added: branches/lennart/src/modules/ladspa.h
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/lennart/src/modules/ladspa.h?rev=1848&root=pulseaudio&view=auto
==============================================================================
--- branches/lennart/src/modules/ladspa.h (added)
+++ branches/lennart/src/modules/ladspa.h Tue Sep 18 00:42:20 2007
@@ -1,0 +1,603 @@
+/* ladspa.h
+
+ Linux Audio Developer's Simple Plugin API Version 1.1[LGPL].
+ Copyright (C) 2000-2002 Richard W.E. Furse, Paul Barton-Davis,
+ Stefan Westerfeld.
+
+ This library 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.
+
+ This library 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 this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA. */
+
+#ifndef LADSPA_INCLUDED
+#define LADSPA_INCLUDED
+
+#define LADSPA_VERSION "1.1"
+#define LADSPA_VERSION_MAJOR 1
+#define LADSPA_VERSION_MINOR 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*****************************************************************************/
+
+/* Overview:
+
+ There is a large number of synthesis packages in use or development
+ on the Linux platform at this time. This API (`The Linux Audio
+ Developer's Simple Plugin API') attempts to give programmers the
+ ability to write simple `plugin' audio processors in C/C++ and link
+ them dynamically (`plug') into a range of these packages (`hosts').
+ It should be possible for any host and any plugin to communicate
+ completely through this interface.
+
+ This API is deliberately short and simple. To achieve compatibility
+ with a range of promising Linux sound synthesis packages it
+ attempts to find the `greatest common divisor' in their logical
+ behaviour. Having said this, certain limiting decisions are
+ implicit, notably the use of a fixed type (LADSPA_Data) for all
+ data transfer and absence of a parameterised `initialisation'
+ phase. See below for the LADSPA_Data typedef.
+
+ Plugins are expected to distinguish between control and audio
+ data. Plugins have `ports' that are inputs or outputs for audio or
+ control data and each plugin is `run' for a `block' corresponding
+ to a short time interval measured in samples. Audio data is
+ communicated using arrays of LADSPA_Data, allowing a block of audio
+ to be processed by the plugin in a single pass. Control data is
+ communicated using single LADSPA_Data values. Control data has a
+ single value at the start of a call to the `run()' or `run_adding()'
+ function, and may be considered to remain this value for its
+ duration. The plugin may assume that all its input and output ports
+ have been connected to the relevant data location (see the
+ `connect_port()' function below) before it is asked to run.
+
+ Plugins will reside in shared object files suitable for dynamic
+ linking by dlopen() and family. The file will provide a number of
+ `plugin types' that can be used to instantiate actual plugins
+ (sometimes known as `plugin instances') that can be connected
+ together to perform tasks.
+
+ This API contains very limited error-handling. */
+
+/*****************************************************************************/
+
+/* Fundamental data type passed in and out of plugin. This data type
+ is used to communicate audio samples and control values. It is
+ assumed that the plugin will work sensibly given any numeric input
+ value although it may have a preferred range (see hints below).
+
+ For audio it is generally assumed that 1.0f is the `0dB' reference
+ amplitude and is a `normal' signal level. */
+
+typedef float LADSPA_Data;
+
+/*****************************************************************************/
+
+/* Special Plugin Properties:
+
+ Optional features of the plugin type are encapsulated in the
+ LADSPA_Properties type. This is assembled by ORing individual
+ properties together. */
+
+typedef int LADSPA_Properties;
+
+/* Property LADSPA_PROPERTY_REALTIME indicates that the plugin has a
+ real-time dependency (e.g. listens to a MIDI device) and so its
+ output must not be cached or subject to significant latency. */
+#define LADSPA_PROPERTY_REALTIME 0x1
+
+/* Property LADSPA_PROPERTY_INPLACE_BROKEN indicates that the plugin
+ may cease to work correctly if the host elects to use the same data
+ location for both input and output (see connect_port()). This
+ should be avoided as enabling this flag makes it impossible for
+ hosts to use the plugin to process audio `in-place.' */
+#define LADSPA_PROPERTY_INPLACE_BROKEN 0x2
+
+/* Property LADSPA_PROPERTY_HARD_RT_CAPABLE indicates that the plugin
+ is capable of running not only in a conventional host but also in a
+ `hard real-time' environment. To qualify for this the plugin must
+ satisfy all of the following:
+
+ (1) The plugin must not use malloc(), free() or other heap memory
+ management within its run() or run_adding() functions. All new
+ memory used in run() must be managed via the stack. These
+ restrictions only apply to the run() function.
+
+ (2) The plugin will not attempt to make use of any library
+ functions with the exceptions of functions in the ANSI standard C
+ and C maths libraries, which the host is expected to provide.
+
+ (3) The plugin will not access files, devices, pipes, sockets, IPC
+ or any other mechanism that might result in process or thread
+ blocking.
+
+ (4) The plugin will take an amount of time to execute a run() or
+ run_adding() call approximately of form (A+B*SampleCount) where A
+ and B depend on the machine and host in use. This amount of time
+ may not depend on input signals or plugin state. The host is left
+ the responsibility to perform timings to estimate upper bounds for
+ A and B. */
+#define LADSPA_PROPERTY_HARD_RT_CAPABLE 0x4
+
+#define LADSPA_IS_REALTIME(x) ((x) & LADSPA_PROPERTY_REALTIME)
+#define LADSPA_IS_INPLACE_BROKEN(x) ((x) & LADSPA_PROPERTY_INPLACE_BROKEN)
+#define LADSPA_IS_HARD_RT_CAPABLE(x) ((x) & LADSPA_PROPERTY_HARD_RT_CAPABLE)
+
+/*****************************************************************************/
+
+/* Plugin Ports:
+
+ Plugins have `ports' that are inputs or outputs for audio or
+ data. Ports can communicate arrays of LADSPA_Data (for audio
+ inputs/outputs) or single LADSPA_Data values (for control
+ input/outputs). This information is encapsulated in the
+ LADSPA_PortDescriptor type which is assembled by ORing individual
+ properties together.
+
+ Note that a port must be an input or an output port but not both
+ and that a port must be a control or audio port but not both. */
+
+typedef int LADSPA_PortDescriptor;
+
+/* Property LADSPA_PORT_INPUT indicates that the port is an input. */
+#define LADSPA_PORT_INPUT 0x1
+
+/* Property LADSPA_PORT_OUTPUT indicates that the port is an output. */
+#define LADSPA_PORT_OUTPUT 0x2
+
+/* Property LADSPA_PORT_CONTROL indicates that the port is a control
+ port. */
+#define LADSPA_PORT_CONTROL 0x4
+
+/* Property LADSPA_PORT_AUDIO indicates that the port is a audio
+ port. */
+#define LADSPA_PORT_AUDIO 0x8
+
+#define LADSPA_IS_PORT_INPUT(x) ((x) & LADSPA_PORT_INPUT)
+#define LADSPA_IS_PORT_OUTPUT(x) ((x) & LADSPA_PORT_OUTPUT)
+#define LADSPA_IS_PORT_CONTROL(x) ((x) & LADSPA_PORT_CONTROL)
+#define LADSPA_IS_PORT_AUDIO(x) ((x) & LADSPA_PORT_AUDIO)
+
+/*****************************************************************************/
+
+/* Plugin Port Range Hints:
+
+ The host may wish to provide a representation of data entering or
+ leaving a plugin (e.g. to generate a GUI automatically). To make
+ this more meaningful, the plugin should provide `hints' to the host
+ describing the usual values taken by the data.
+
+ Note that these are only hints. The host may ignore them and the
+ plugin must not assume that data supplied to it is meaningful. If
+ the plugin receives invalid input data it is expected to continue
+ to run without failure and, where possible, produce a sensible
+ output (e.g. a high-pass filter given a negative cutoff frequency
+ might switch to an all-pass mode).
+
+ Hints are meaningful for all input and output ports but hints for
+ input control ports are expected to be particularly useful.
+
+ More hint information is encapsulated in the
+ LADSPA_PortRangeHintDescriptor type which is assembled by ORing
+ individual hint types together. Hints may require further
+ LowerBound and UpperBound information.
+
+ All the hint information for a particular port is aggregated in the
+ LADSPA_PortRangeHint structure. */
+
+typedef int LADSPA_PortRangeHintDescriptor;
+
+/* Hint LADSPA_HINT_BOUNDED_BELOW indicates that the LowerBound field
+ of the LADSPA_PortRangeHint should be considered meaningful. The
+ value in this field should be considered the (inclusive) lower
+ bound of the valid range. If LADSPA_HINT_SAMPLE_RATE is also
+ specified then the value of LowerBound should be multiplied by the
+ sample rate. */
+#define LADSPA_HINT_BOUNDED_BELOW 0x1
+
+/* Hint LADSPA_HINT_BOUNDED_ABOVE indicates that the UpperBound field
+ of the LADSPA_PortRangeHint should be considered meaningful. The
+ value in this field should be considered the (inclusive) upper
+ bound of the valid range. If LADSPA_HINT_SAMPLE_RATE is also
+ specified then the value of UpperBound should be multiplied by the
+ sample rate. */
+#define LADSPA_HINT_BOUNDED_ABOVE 0x2
+
+/* Hint LADSPA_HINT_TOGGLED indicates that the data item should be
+ considered a Boolean toggle. Data less than or equal to zero should
+ be considered `off' or `false,' and data above zero should be
+ considered `on' or `true.' LADSPA_HINT_TOGGLED may not be used in
+ conjunction with any other hint except LADSPA_HINT_DEFAULT_0 or
+ LADSPA_HINT_DEFAULT_1. */
+#define LADSPA_HINT_TOGGLED 0x4
+
+/* Hint LADSPA_HINT_SAMPLE_RATE indicates that any bounds specified
+ should be interpreted as multiples of the sample rate. For
+ instance, a frequency range from 0Hz to the Nyquist frequency (half
+ the sample rate) could be requested by this hint in conjunction
+ with LowerBound = 0 and UpperBound = 0.5. Hosts that support bounds
+ at all must support this hint to retain meaning. */
+#define LADSPA_HINT_SAMPLE_RATE 0x8
+
+/* Hint LADSPA_HINT_LOGARITHMIC indicates that it is likely that the
+ user will find it more intuitive to view values using a logarithmic
+ scale. This is particularly useful for frequencies and gains. */
+#define LADSPA_HINT_LOGARITHMIC 0x10
+
+/* Hint LADSPA_HINT_INTEGER indicates that a user interface would
+ probably wish to provide a stepped control taking only integer
+ values. Any bounds set should be slightly wider than the actual
+ integer range required to avoid floating point rounding errors. For
+ instance, the integer set {0,1,2,3} might be described as [-0.1,
+ 3.1]. */
+#define LADSPA_HINT_INTEGER 0x20
+
+/* The various LADSPA_HINT_HAS_DEFAULT_* hints indicate a `normal'
+ value for the port that is sensible as a default. For instance,
+ this value is suitable for use as an initial value in a user
+ interface or as a value the host might assign to a control port
+ when the user has not provided one. Defaults are encoded using a
+ mask so only one default may be specified for a port. Some of the
+ hints make use of lower and upper bounds, in which case the
+ relevant bound or bounds must be available and
+ LADSPA_HINT_SAMPLE_RATE must be applied as usual. The resulting
+ default must be rounded if LADSPA_HINT_INTEGER is present. Default
+ values were introduced in LADSPA v1.1. */
+#define LADSPA_HINT_DEFAULT_MASK 0x3C0
+
+/* This default values indicates that no default is provided. */
+#define LADSPA_HINT_DEFAULT_NONE 0x0
+
+/* This default hint indicates that the suggested lower bound for the
+ port should be used. */
+#define LADSPA_HINT_DEFAULT_MINIMUM 0x40
+
+/* This default hint indicates that a low value between the suggested
+ lower and upper bounds should be chosen. For ports with
+ LADSPA_HINT_LOGARITHMIC, this should be exp(log(lower) * 0.75 +
+ log(upper) * 0.25). Otherwise, this should be (lower * 0.75 + upper
+ * 0.25). */
+#define LADSPA_HINT_DEFAULT_LOW 0x80
+
+/* This default hint indicates that a middle value between the
+ suggested lower and upper bounds should be chosen. For ports with
+ LADSPA_HINT_LOGARITHMIC, this should be exp(log(lower) * 0.5 +
+ log(upper) * 0.5). Otherwise, this should be (lower * 0.5 + upper *
+ 0.5). */
+#define LADSPA_HINT_DEFAULT_MIDDLE 0xC0
+
+/* This default hint indicates that a high value between the suggested
+ lower and upper bounds should be chosen. For ports with
+ LADSPA_HINT_LOGARITHMIC, this should be exp(log(lower) * 0.25 +
+ log(upper) * 0.75). Otherwise, this should be (lower * 0.25 + upper
+ * 0.75). */
+#define LADSPA_HINT_DEFAULT_HIGH 0x100
+
+/* This default hint indicates that the suggested upper bound for the
+ port should be used. */
+#define LADSPA_HINT_DEFAULT_MAXIMUM 0x140
+
+/* This default hint indicates that the number 0 should be used. Note
+ that this default may be used in conjunction with
+ LADSPA_HINT_TOGGLED. */
+#define LADSPA_HINT_DEFAULT_0 0x200
+
+/* This default hint indicates that the number 1 should be used. Note
+ that this default may be used in conjunction with
+ LADSPA_HINT_TOGGLED. */
+#define LADSPA_HINT_DEFAULT_1 0x240
+
+/* This default hint indicates that the number 100 should be used. */
+#define LADSPA_HINT_DEFAULT_100 0x280
+
+/* This default hint indicates that the Hz frequency of `concert A'
+ should be used. This will be 440 unless the host uses an unusual
+ tuning convention, in which case it may be within a few Hz. */
+#define LADSPA_HINT_DEFAULT_440 0x2C0
+
+#define LADSPA_IS_HINT_BOUNDED_BELOW(x) ((x) & LADSPA_HINT_BOUNDED_BELOW)
+#define LADSPA_IS_HINT_BOUNDED_ABOVE(x) ((x) & LADSPA_HINT_BOUNDED_ABOVE)
+#define LADSPA_IS_HINT_TOGGLED(x) ((x) & LADSPA_HINT_TOGGLED)
+#define LADSPA_IS_HINT_SAMPLE_RATE(x) ((x) & LADSPA_HINT_SAMPLE_RATE)
+#define LADSPA_IS_HINT_LOGARITHMIC(x) ((x) & LADSPA_HINT_LOGARITHMIC)
+#define LADSPA_IS_HINT_INTEGER(x) ((x) & LADSPA_HINT_INTEGER)
+
+#define LADSPA_IS_HINT_HAS_DEFAULT(x) ((x) & LADSPA_HINT_DEFAULT_MASK)
+#define LADSPA_IS_HINT_DEFAULT_MINIMUM(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_MINIMUM)
+#define LADSPA_IS_HINT_DEFAULT_LOW(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_LOW)
+#define LADSPA_IS_HINT_DEFAULT_MIDDLE(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_MIDDLE)
+#define LADSPA_IS_HINT_DEFAULT_HIGH(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_HIGH)
+#define LADSPA_IS_HINT_DEFAULT_MAXIMUM(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_MAXIMUM)
+#define LADSPA_IS_HINT_DEFAULT_0(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_0)
+#define LADSPA_IS_HINT_DEFAULT_1(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_1)
+#define LADSPA_IS_HINT_DEFAULT_100(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_100)
+#define LADSPA_IS_HINT_DEFAULT_440(x) (((x) & LADSPA_HINT_DEFAULT_MASK) \
+ == LADSPA_HINT_DEFAULT_440)
+
+typedef struct _LADSPA_PortRangeHint {
+
+ /* Hints about the port. */
+ LADSPA_PortRangeHintDescriptor HintDescriptor;
+
+ /* Meaningful when hint LADSPA_HINT_BOUNDED_BELOW is active. When
+ LADSPA_HINT_SAMPLE_RATE is also active then this value should be
+ multiplied by the relevant sample rate. */
+ LADSPA_Data LowerBound;
+
+ /* Meaningful when hint LADSPA_HINT_BOUNDED_ABOVE is active. When
+ LADSPA_HINT_SAMPLE_RATE is also active then this value should be
+ multiplied by the relevant sample rate. */
+ LADSPA_Data UpperBound;
+
+} LADSPA_PortRangeHint;
+
+/*****************************************************************************/
+
+/* Plugin Handles:
+
+ This plugin handle indicates a particular instance of the plugin
+ concerned. It is valid to compare this to NULL (0 for C++) but
+ otherwise the host should not attempt to interpret it. The plugin
+ may use it to reference internal instance data. */
+
+typedef void * LADSPA_Handle;
+
+/*****************************************************************************/
+
+/* Descriptor for a Type of Plugin:
+
+ This structure is used to describe a plugin type. It provides a
+ number of functions to examine the type, instantiate it, link it to
+ buffers and workspaces and to run it. */
+
+typedef struct _LADSPA_Descriptor {
+
+ /* This numeric identifier indicates the plugin type
+ uniquely. Plugin programmers may reserve ranges of IDs from a
+ central body to avoid clashes. Hosts may assume that IDs are
+ below 0x1000000. */
+ unsigned long UniqueID;
+
+ /* This identifier can be used as a unique, case-sensitive
+ identifier for the plugin type within the plugin file. Plugin
+ types should be identified by file and label rather than by index
+ or plugin name, which may be changed in new plugin
+ versions. Labels must not contain white-space characters. */
+ const char * Label;
+
+ /* This indicates a number of properties of the plugin. */
+ LADSPA_Properties Properties;
+
+ /* This member points to the null-terminated name of the plugin
+ (e.g. "Sine Oscillator"). */
+ const char * Name;
+
+ /* This member points to the null-terminated string indicating the
+ maker of the plugin. This can be an empty string but not NULL. */
+ const char * Maker;
+
+ /* This member points to the null-terminated string indicating any
+ copyright applying to the plugin. If no Copyright applies the
+ string "None" should be used. */
+ const char * Copyright;
+
+ /* This indicates the number of ports (input AND output) present on
+ the plugin. */
+ unsigned long PortCount;
+
+ /* This member indicates an array of port descriptors. Valid indices
+ vary from 0 to PortCount-1. */
+ const LADSPA_PortDescriptor * PortDescriptors;
+
+ /* This member indicates an array of null-terminated strings
+ describing ports (e.g. "Frequency (Hz)"). Valid indices vary from
+ 0 to PortCount-1. */
+ const char * const * PortNames;
+
+ /* This member indicates an array of range hints for each port (see
+ above). Valid indices vary from 0 to PortCount-1. */
+ const LADSPA_PortRangeHint * PortRangeHints;
+
+ /* This may be used by the plugin developer to pass any custom
+ implementation data into an instantiate call. It must not be used
+ or interpreted by the host. It is expected that most plugin
+ writers will not use this facility as LADSPA_Handle should be
+ used to hold instance data. */
+ void * ImplementationData;
+
+ /* This member is a function pointer that instantiates a plugin. A
+ handle is returned indicating the new plugin instance. The
+ instantiation function accepts a sample rate as a parameter. The
+ plugin descriptor from which this instantiate function was found
+ must also be passed. This function must return NULL if
+ instantiation fails.
+
+ Note that instance initialisation should generally occur in
+ activate() rather than here. */
+ LADSPA_Handle (*instantiate)(const struct _LADSPA_Descriptor * Descriptor,
+ unsigned long SampleRate);
+
+ /* This member is a function pointer that connects a port on an
+ instantiated plugin to a memory location at which a block of data
+ for the port will be read/written. The data location is expected
+ to be an array of LADSPA_Data for audio ports or a single
+ LADSPA_Data value for control ports. Memory issues will be
+ managed by the host. The plugin must read/write the data at these
+ locations every time run() or run_adding() is called and the data
+ present at the time of this connection call should not be
+ considered meaningful.
+
+ connect_port() may be called more than once for a plugin instance
+ to allow the host to change the buffers that the plugin is
+ reading or writing. These calls may be made before or after
+ activate() or deactivate() calls.
+
+ connect_port() must be called at least once for each port before
+ run() or run_adding() is called. When working with blocks of
+ LADSPA_Data the plugin should pay careful attention to the block
+ size passed to the run function as the block allocated may only
+ just be large enough to contain the block of samples.
+
+ Plugin writers should be aware that the host may elect to use the
+ same buffer for more than one port and even use the same buffer
+ for both input and output (see LADSPA_PROPERTY_INPLACE_BROKEN).
+ However, overlapped buffers or use of a single buffer for both
+ audio and control data may result in unexpected behaviour. */
+ void (*connect_port)(LADSPA_Handle Instance,
+ unsigned long Port,
+ LADSPA_Data * DataLocation);
+
+ /* This member is a function pointer that initialises a plugin
+ instance and activates it for use. This is separated from
+ instantiate() to aid real-time support and so that hosts can
+ reinitialise a plugin instance by calling deactivate() and then
+ activate(). In this case the plugin instance must reset all state
+ information dependent on the history of the plugin instance
+ except for any data locations provided by connect_port() and any
+ gain set by set_run_adding_gain(). If there is nothing for
+ activate() to do then the plugin writer may provide a NULL rather
+ than an empty function.
+
+ When present, hosts must call this function once before run() (or
+ run_adding()) is called for the first time. This call should be
+ made as close to the run() call as possible and indicates to
+ real-time plugins that they are now live. Plugins should not rely
+ on a prompt call to run() after activate(). activate() may not be
+ called again unless deactivate() is called first. Note that
+ connect_port() may be called before or after a call to
+ activate(). */
+ void (*activate)(LADSPA_Handle Instance);
+
+ /* This method is a function pointer that runs an instance of a
+ plugin for a block. Two parameters are required: the first is a
+ handle to the particular instance to be run and the second
+ indicates the block size (in samples) for which the plugin
+ instance may run.
+
+ Note that if an activate() function exists then it must be called
+ before run() or run_adding(). If deactivate() is called for a
+ plugin instance then the plugin instance may not be reused until
+ activate() has been called again.
+
+ If the plugin has the property LADSPA_PROPERTY_HARD_RT_CAPABLE
+ then there are various things that the plugin should not do
+ within the run() or run_adding() functions (see above). */
+ void (*run)(LADSPA_Handle Instance,
+ unsigned long SampleCount);
+
+ /* This method is a function pointer that runs an instance of a
+ plugin for a block. This has identical behaviour to run() except
+ in the way data is output from the plugin. When run() is used,
+ values are written directly to the memory areas associated with
+ the output ports. However when run_adding() is called, values
+ must be added to the values already present in the memory
+ areas. Furthermore, output values written must be scaled by the
+ current gain set by set_run_adding_gain() (see below) before
+ addition.
+
+ run_adding() is optional. When it is not provided by a plugin,
+ this function pointer must be set to NULL. When it is provided,
+ the function set_run_adding_gain() must be provided also. */
+ void (*run_adding)(LADSPA_Handle Instance,
+ unsigned long SampleCount);
+
+ /* This method is a function pointer that sets the output gain for
+ use when run_adding() is called (see above). If this function is
+ never called the gain is assumed to default to 1. Gain
+ information should be retained when activate() or deactivate()
+ are called.
+
+ This function should be provided by the plugin if and only if the
+ run_adding() function is provided. When it is absent this
+ function pointer must be set to NULL. */
+ void (*set_run_adding_gain)(LADSPA_Handle Instance,
+ LADSPA_Data Gain);
+
+ /* This is the counterpart to activate() (see above). If there is
+ nothing for deactivate() to do then the plugin writer may provide
+ a NULL rather than an empty function.
+
+ Hosts must deactivate all activated units after they have been
+ run() (or run_adding()) for the last time. This call should be
+ made as close to the last run() call as possible and indicates to
+ real-time plugins that they are no longer live. Plugins should
+ not rely on prompt deactivation. Note that connect_port() may be
+ called before or after a call to deactivate().
+
+ Deactivation is not similar to pausing as the plugin instance
+ will be reinitialised when activate() is called to reuse it. */
+ void (*deactivate)(LADSPA_Handle Instance);
+
+ /* Once an instance of a plugin has been finished with it can be
+ deleted using the following function. The instance handle passed
+ ceases to be valid after this call.
+
+ If activate() was called for a plugin instance then a
+ corresponding call to deactivate() must be made before cleanup()
+ is called. */
+ void (*cleanup)(LADSPA_Handle Instance);
+
+} LADSPA_Descriptor;
+
+/**********************************************************************/
+
+/* Accessing a Plugin: */
+
+/* The exact mechanism by which plugins are loaded is host-dependent,
+ however all most hosts will need to know is the name of shared
+ object file containing the plugin types. To allow multiple hosts to
+ share plugin types, hosts may wish to check for environment
+ variable LADSPA_PATH. If present, this should contain a
+ colon-separated path indicating directories that should be searched
+ (in order) when loading plugin types.
+
+ A plugin programmer must include a function called
+ "ladspa_descriptor" with the following function prototype within
+ the shared object file. This function will have C-style linkage (if
+ you are using C++ this is taken care of by the `extern "C"' clause
+ at the top of the file).
+
+ A host will find the plugin shared object file by one means or
+ another, find the ladspa_descriptor() function, call it, and
+ proceed from there.
+
+ Plugin types are accessed by index (not ID) using values from 0
+ upwards. Out of range indexes must result in this function
+ returning NULL, so the plugin count can be determined by checking
+ for the least index that results in NULL being returned. */
+
+const LADSPA_Descriptor * ladspa_descriptor(unsigned long Index);
+
+/* Datatype corresponding to the ladspa_descriptor() function. */
+typedef const LADSPA_Descriptor *
+(*LADSPA_Descriptor_Function)(unsigned long Index);
+
+/**********************************************************************/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LADSPA_INCLUDED */
+
+/* EOF */
Added: branches/lennart/src/modules/module-ladspa-sink.c
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/lennart/src/modules/module-ladspa-sink.c?rev=1848&root=pulseaudio&view=auto
==============================================================================
--- branches/lennart/src/modules/module-ladspa-sink.c (added)
+++ branches/lennart/src/modules/module-ladspa-sink.c Tue Sep 18 00:42:20 2007
@@ -1,0 +1,565 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2004-2006 Lennart Poettering
+
+ 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 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
+ 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
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core-error.h>
+#include <pulsecore/namereg.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/module.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/modargs.h>
+#include <pulsecore/log.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/thread-mq.h>
+#include <pulsecore/rtpoll.h>
+#include <pulsecore/sample-util.h>
+
+#include "module-ladspa-sink-symdef.h"
+#include "ladspa.h"
+
+PA_MODULE_AUTHOR("Lennart Poettering")
+PA_MODULE_DESCRIPTION("Virtual LADSPA sink")
+PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_USAGE(
+ "sink_name=<name for the sink> "
+ "master=<name of sink to remap> "
+ "format=<sample format> "
+ "channels=<number of channels> "
+ "rate=<sample rate> "
+ "channel_map=<channel map> "
+ "plugin=<ladspa plugin name> "
+ "label=<ladspa plugin label> "
+ "control=<comma seperated list of input control values>")
+
+#define DEFAULT_SINK_NAME "ladspa"
+
+struct userdata {
+ pa_core *core;
+ pa_module *module;
+
+ pa_sink *sink, *master;
+ pa_sink_input *sink_input;
+
+ const LADSPA_Descriptor *descriptor;
+ unsigned channels;
+ LADSPA_Handle handle[PA_CHANNELS_MAX];
+ LADSPA_Data *input, *output;
+ size_t block_size;
+ unsigned long input_port, output_port;
+ LADSPA_Data *control;
+
+ pa_memchunk memchunk;
+};
+
+static const char* const valid_modargs[] = {
+ "sink_name",
+ "master",
+ "format",
+ "channels",
+ "rate",
+ "channel_map",
+ "plugin",
+ "label",
+ "control",
+ NULL
+};
+
+/* Called from I/O thread context */
+static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+ struct userdata *u = PA_SINK(o)->userdata;
+
+ switch (code) {
+
+ case PA_SINK_MESSAGE_GET_LATENCY: {
+ pa_usec_t usec = 0;
+
+ if (PA_MSGOBJECT(u->master)->process_msg(PA_MSGOBJECT(u->master), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
+ usec = 0;
+
+ *((pa_usec_t*) data) = usec + pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec);
+ return 0;
+ }
+ }
+
+ return pa_sink_process_msg(o, code, data, offset, chunk);
+}
+
+/* Called from main context */
+static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
+ struct userdata *u;
+
+ pa_sink_assert_ref(s);
+ pa_assert_se(u = s->userdata);
+
+ if (PA_SINK_LINKED(state) && u->sink_input)
+ pa_sink_input_cork(u->sink_input, state == PA_SINK_SUSPENDED);
+
+ return 0;
+}
+
+/* Called from I/O thread context */
+static int sink_input_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+ struct userdata *u = PA_SINK_INPUT(o)->userdata;
+
+ switch (code) {
+ case PA_SINK_INPUT_MESSAGE_GET_LATENCY:
+ *((pa_usec_t*) data) = pa_bytes_to_usec(u->memchunk.length, &u->sink_input->sample_spec);
+
+ /* Fall through, the default handler will add in the extra
+ * latency added by the resampler */
+ break;
+ }
+
+ return pa_sink_input_process_msg(o, code, data, offset, chunk);
+}
+
+/* Called from I/O thread context */
+static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
+ struct userdata *u;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(u = i->userdata);
+
+ if (!u->memchunk.memblock) {
+ pa_memchunk tchunk;
+ float *src, *dst;
+ size_t fs;
+ unsigned n, c;
+
+ pa_sink_render(u->sink, length, &tchunk);
+
+ fs = pa_frame_size(&i->sample_spec);
+ n = tchunk.length / fs;
+
+ pa_assert(n > 0);
+
+ u->memchunk.memblock = pa_memblock_new(i->sink->core->mempool, tchunk.length);
+ u->memchunk.index = 0;
+ u->memchunk.length = tchunk.length;
+
+ src = (float*) ((uint8_t*) pa_memblock_acquire(tchunk.memblock) + tchunk.index);
+ dst = (float*) pa_memblock_acquire(u->memchunk.memblock);
+
+ for (c = 0; c < u->channels; c++) {
+ unsigned j;
+ float *p, *q;
+
+ p = src + c;
+ q = u->input;
+ for (j = 0; j < n; j++, p += u->channels, q++)
+ *q = *p;
+
+ u->descriptor->run(u->handle[c], n);
+
+ q = u->output;
+ p = dst + c;
+ for (j = 0; j < n; j++, q++, p += u->channels)
+ *p = *q;
+ }
+
+ pa_memblock_release(tchunk.memblock);
+ pa_memblock_release(u->memchunk.memblock);
+
+ pa_memblock_unref(tchunk.memblock);
+ }
+
+ pa_assert(u->memchunk.memblock);
+ *chunk = u->memchunk;
+ pa_memblock_ref(chunk->memblock);
+ return 0;
+}
+
+/* Called from I/O thread context */
+static void sink_input_drop_cb(pa_sink_input *i, size_t length) {
+ struct userdata *u;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(u = i->userdata);
+ pa_assert(length > 0);
+
+ if (u->memchunk.memblock) {
+
+ if (length < u->memchunk.length) {
+ u->memchunk.index += length;
+ u->memchunk.length -= length;
+ return;
+ }
+
+ pa_memblock_unref(u->memchunk.memblock);
+ length -= u->memchunk.length;
+ pa_memchunk_reset(&u->memchunk);
+ }
+
+ if (length > 0)
+ pa_sink_skip(u->sink, length);
+}
+
+/* Called from I/O thread context */
+static void sink_input_detach_cb(pa_sink_input *i) {
+ struct userdata *u;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(u = i->userdata);
+
+ pa_sink_detach_within_thread(u->sink);
+}
+
+/* Called from I/O thread context */
+static void sink_input_attach_cb(pa_sink_input *i) {
+ struct userdata *u;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(u = i->userdata);
+
+ pa_sink_set_asyncmsgq(u->sink, i->sink->asyncmsgq);
+ pa_sink_set_rtpoll(u->sink, i->sink->rtpoll);
+
+ pa_sink_attach_within_thread(u->sink);
+}
+
+/* Called from main context */
+static void sink_input_kill_cb(pa_sink_input *i) {
+ struct userdata *u;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(u = i->userdata);
+
+ pa_sink_input_unlink(u->sink_input);
+ pa_sink_input_unref(u->sink_input);
+ u->sink_input = NULL;
+
+ pa_sink_unlink(u->sink);
+ pa_sink_unref(u->sink);
+ u->sink = NULL;
+
+ pa_module_unload_request(u->module);
+}
+
+int pa__init(pa_module*m) {
+ struct userdata *u;
+ pa_sample_spec ss;
+ pa_channel_map map;
+ pa_modargs *ma;
+ char *t;
+ pa_sink *master;
+ pa_sink_input_new_data data;
+ const char *plugin, *label;
+ LADSPA_Descriptor_Function descriptor_func;
+ const char *e, *cdata;
+ const LADSPA_Descriptor *d;
+ unsigned long input_port, output_port, p, j, n_control;
+ unsigned c;
+
+ pa_assert(m);
+
+ pa_assert(sizeof(LADSPA_Data) == sizeof(float));
+
+ if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+ pa_log("Failed to parse module arguments.");
+ goto fail;
+ }
+
+ if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SINK, 1))) {
+ pa_log("Master sink not found");
+ goto fail;
+ }
+
+ ss = master->sample_spec;
+ ss.format = PA_SAMPLE_FLOAT32;
+ map = master->channel_map;
+ if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
+ pa_log("Invalid sample format specification or channel map");
+ goto fail;
+ }
+
+ if (!(plugin = pa_modargs_get_value(ma, "plugin", NULL))) {
+ pa_log("Missing LADSPA plugin name");
+ goto fail;
+ }
+
+ if (!(label = pa_modargs_get_value(ma, "label", NULL))) {
+ pa_log("Missing LADSPA plugin label");
+ goto fail;
+ }
+
+ cdata = pa_modargs_get_value(ma, "control", NULL);
+
+ u = pa_xnew0(struct userdata, 1);
+ u->core = m->core;
+ u->module = m;
+ m->userdata = u;
+ u->master = master;
+ pa_memchunk_reset(&u->memchunk);
+
+ if (!(e = getenv("LADSPA_PATH")))
+ e = LADSPA_PATH;
+
+ /* FIXME: This is not exactly thread safe */
+ t = pa_xstrdup(lt_dlgetsearchpath());
+ lt_dlsetsearchpath(e);
+ m->dl = lt_dlopenext(plugin);
+ lt_dlsetsearchpath(t);
+ pa_xfree(t);
+
+ if (!m->dl) {
+ pa_log("Failed to load LADSPA plugin: %s", lt_dlerror());
+ goto fail;
+ }
+
+ if (!(descriptor_func = (LADSPA_Descriptor_Function) lt_dlsym(m->dl, "ladspa_descriptor"))) {
+ pa_log("LADSPA module lacks ladspa_descriptor() symbol.");
+ goto fail;
+ }
+
+ for (j = 0;; j++) {
+
+ if (!(d = descriptor_func(j))) {
+ pa_log("Failed to find plugin label '%s' in plugin '%s'.", plugin, label);
+ goto fail;
+ }
+
+ if (strcmp(d->Label, label) == 0)
+ break;
+ }
+
+ u->descriptor = d;
+
+ pa_log_debug("Module: %s", plugin);
+ pa_log_debug("Label: %s", d->Label);
+ pa_log_debug("Unique ID: %lu", d->UniqueID);
+ pa_log_debug("Name: %s", d->Name);
+ pa_log_debug("Maker: %s", d->Maker);
+ pa_log_debug("Copyright: %s", d->Copyright);
+
+ input_port = output_port = (unsigned long) -1;
+ n_control = 0;
+
+ for (p = 0; p < d->PortCount; p++) {
+
+ if (LADSPA_IS_PORT_INPUT(d->PortDescriptors[p]) && LADSPA_IS_PORT_AUDIO(d->PortDescriptors[p])) {
+
+ if (strcmp(d->PortNames[p], "Input") == 0) {
+ pa_assert(input_port == (unsigned long) -1);
+ input_port = p;
+ } else {
+ pa_log("Found audio input port on plugin we cannot handle: %s", d->PortNames[p]);
+ goto fail;
+ }
+
+ } else if (LADSPA_IS_PORT_OUTPUT(d->PortDescriptors[p]) && LADSPA_IS_PORT_AUDIO(d->PortDescriptors[p])) {
+
+ if (strcmp(d->PortNames[p], "Output") == 0) {
+ pa_assert(output_port == (unsigned long) -1);
+ output_port = p;
+ } else {
+ pa_log("Found audio output port on plugin we cannot handle: %s", d->PortNames[p]);
+ goto fail;
+ }
+
+ } else if (LADSPA_IS_PORT_INPUT(d->PortDescriptors[p]) && LADSPA_IS_PORT_CONTROL(d->PortDescriptors[p]))
+ n_control++;
+ else
+ pa_log("Cannot handle type of port %s", d->PortNames[p]);
+ }
+
+ if ((input_port == (unsigned long) -1) || (output_port == (unsigned long) -1)) {
+ pa_log("Failed to identify input and output ports. "
+ "Right now this module can only deal with plugins which provide an 'Input' and an 'Output' audio port. "
+ "Patches welcome!");
+ goto fail;
+ }
+
+ u->block_size = pa_frame_align(pa_mempool_block_size_max(m->core->mempool), &ss);
+
+ u->input = (LADSPA_Data*) pa_xnew(uint8_t, u->block_size);
+ if (LADSPA_IS_INPLACE_BROKEN(d->Properties))
+ u->output = (LADSPA_Data*) pa_xnew(uint8_t, u->block_size);
+ else
+ u->output = u->input;
+
+ u->channels = ss.channels;
+
+ for (c = 0; c < ss.channels; c++) {
+ if (!(u->handle[c] = d->instantiate(d, ss.rate))) {
+ pa_log("Failed to instantiate plugin %s with label %s for channel %i", plugin, d->Label, c);
+ goto fail;
+ }
+
+ d->connect_port(u->handle[c], input_port, u->input);
+ d->connect_port(u->handle[c], output_port, u->output);
+ }
+
+ if (!cdata && n_control > 0) {
+ pa_log("This plugin requires specification of %lu control parameters.", n_control);
+ goto fail;
+ }
+
+ if (n_control > 0) {
+ const char *state = NULL;
+ char *k;
+ unsigned long h;
+
+ u->control = pa_xnew(LADSPA_Data, n_control);
+ p = 0;
+
+ while ((k = pa_split(cdata, ",", &state))) {
+ float f;
+
+ if (pa_atof(k, &f) < 0) {
+ pa_log("Failed to parse control value '%s'", k);
+ pa_xfree(k);
+ goto fail;
+ }
+
+ pa_xfree(k);
+
+ if (p >= n_control) {
+ pa_log("Too many control values passed, %lu expected.", n_control);
+ goto fail;
+ }
+
+ u->control[p++] = f;
+ }
+
+ if (p < n_control) {
+ pa_log("Not enough control values passed, %lu expected, %lu passed.", n_control, p);
+ goto fail;
+ }
+
+ h = 0;
+ for (p = 0; p < d->PortCount; p++) {
+
+ if (!LADSPA_IS_PORT_INPUT(d->PortDescriptors[p]) || !LADSPA_IS_PORT_CONTROL(d->PortDescriptors[p]))
+ continue;
+
+ pa_assert(h < n_control);
+
+ for (c = 0; c < ss.channels; c++)
+ d->connect_port(u->handle[c], p, &u->control[h]);
+
+ h++;
+ }
+
+ pa_assert(h == n_control);
+ }
+
+ if (d->activate)
+ for (c = 0; c < u->channels; c++)
+ d->activate(u->handle[c]);
+
+ /* Create sink */
+ if (!(u->sink = pa_sink_new(m->core, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map))) {
+ pa_log("Failed to create sink.");
+ goto fail;
+ }
+
+ u->sink->parent.process_msg = sink_process_msg;
+ u->sink->set_state = sink_set_state;
+ u->sink->userdata = u;
+ u->sink->flags = PA_SINK_LATENCY|PA_SINK_CAN_SUSPEND;
+
+ pa_sink_set_module(u->sink, m);
+ pa_sink_set_description(u->sink, t = pa_sprintf_malloc("LADSPA on '%s'", master->description));
+ pa_xfree(t);
+ pa_sink_set_asyncmsgq(u->sink, master->asyncmsgq);
+ pa_sink_set_rtpoll(u->sink, master->rtpoll);
+
+ /* Create sink input */
+ pa_sink_input_new_data_init(&data);
+ data.sink = u->master;
+ data.driver = __FILE__;
+ data.name = "LADSPA Stream";
+ pa_sink_input_new_data_set_sample_spec(&data, &ss);
+ pa_sink_input_new_data_set_channel_map(&data, &map);
+ data.module = m;
+
+ if (!(u->sink_input = pa_sink_input_new(m->core, &data, PA_SINK_INPUT_DONT_MOVE)))
+ goto fail;
+
+ u->sink_input->parent.process_msg = sink_input_process_msg;
+ u->sink_input->peek = sink_input_peek_cb;
+ u->sink_input->drop = sink_input_drop_cb;
+ u->sink_input->kill = sink_input_kill_cb;
+ u->sink_input->attach = sink_input_attach_cb;
+ u->sink_input->detach = sink_input_detach_cb;
+ u->sink_input->userdata = u;
+
+ pa_sink_put(u->sink);
+ pa_sink_input_put(u->sink_input);
+
+ pa_modargs_free(ma);
+
+ return 0;
+
+fail:
+ if (ma)
+ pa_modargs_free(ma);
+
+ pa__done(m);
+
+ return -1;
+}
+
+void pa__done(pa_module*m) {
+ struct userdata *u;
+ unsigned c;
+
+ pa_assert(m);
+
+ if (!(u = m->userdata))
+ return;
+
+ if (u->sink_input) {
+ pa_sink_input_unlink(u->sink_input);
+ pa_sink_input_unref(u->sink_input);
+ }
+
+ if (u->sink) {
+ pa_sink_unlink(u->sink);
+ pa_sink_unref(u->sink);
+ }
+
+ if (u->memchunk.memblock)
+ pa_memblock_unref(u->memchunk.memblock);
+
+ for (c = 0; c < u->channels; c++)
+ if (u->handle[c]) {
+ if (u->descriptor->deactivate)
+ u->descriptor->deactivate(u->handle[c]);
+ u->descriptor->cleanup(u->handle[c]);
+ }
+
+ if (u->output != u->input)
+ pa_xfree(u->output);
+
+ pa_xfree(u->input);
+
+ pa_xfree(u->control);
+
+ pa_xfree(u);
+}
Propchange: branches/lennart/src/modules/module-ladspa-sink.c
------------------------------------------------------------------------------
svn:keywords = Id
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