diff options
Diffstat (limited to 'gst/mixmatrix')
| -rw-r--r-- | gst/mixmatrix/mixmatrix.c | 339 |
1 files changed, 177 insertions, 162 deletions
diff --git a/gst/mixmatrix/mixmatrix.c b/gst/mixmatrix/mixmatrix.c index 0551cac0..f7095e27 100644 --- a/gst/mixmatrix/mixmatrix.c +++ b/gst/mixmatrix/mixmatrix.c @@ -40,7 +40,8 @@ typedef struct _GstMixMatrix GstMixMatrix; typedef struct _GstMixMatrixClass GstMixMatrixClass; -struct _GstMixMatrix { +struct _GstMixMatrix +{ GstElement element; GstCaps *caps; @@ -59,10 +60,11 @@ struct _GstMixMatrix { gfloat **matrix; }; -struct _GstMixMatrixClass { +struct _GstMixMatrixClass +{ GstElementClass parent_class; - void (*resize) (GstMixMatrix *mix); + void (*resize) (GstMixMatrix * mix); }; /* elementfactory information */ @@ -73,13 +75,15 @@ static GstElementDetails mixmatrix_details = { "Erik Walthinsen <omega@temple-baptist.com>" }; -enum { +enum +{ /* FILL ME */ RESIZE_SIGNAL, LAST_SIGNAL, }; -enum { +enum +{ ARG_0, ARG_GRPSIZE, ARG_OUTSIZE, @@ -89,59 +93,64 @@ enum { }; static GstStaticPadTemplate mixmatrix_sink_template = -GST_STATIC_PAD_TEMPLATE ( - "sink%d", - GST_PAD_SINK, - GST_PAD_REQUEST, - GST_STATIC_CAPS ( GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS ) -); +GST_STATIC_PAD_TEMPLATE ("sink%d", + GST_PAD_SINK, + GST_PAD_REQUEST, + GST_STATIC_CAPS (GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS) + ); static GstStaticPadTemplate mixmatrix_src_template = -GST_STATIC_PAD_TEMPLATE ( - "src%d", - GST_PAD_SRC, - GST_PAD_REQUEST, - GST_STATIC_CAPS ( GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS ) -); +GST_STATIC_PAD_TEMPLATE ("src%d", + GST_PAD_SRC, + GST_PAD_REQUEST, + GST_STATIC_CAPS (GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS) + ); -static void gst_mixmatrix_class_init (GstMixMatrixClass *klass); -static void gst_mixmatrix_base_init (GstMixMatrixClass *klass); -static void gst_mixmatrix_init (GstMixMatrix *element); +static void gst_mixmatrix_class_init (GstMixMatrixClass * klass); +static void gst_mixmatrix_base_init (GstMixMatrixClass * klass); +static void gst_mixmatrix_init (GstMixMatrix * element); -static void gst_mixmatrix_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); -static void gst_mixmatrix_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); -static GstPad * gst_mixmatrix_request_new_pad (GstElement *element, GstPadTemplate *temp, const gchar *name); +static void gst_mixmatrix_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_mixmatrix_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); +static GstPad *gst_mixmatrix_request_new_pad (GstElement * element, + GstPadTemplate * temp, const gchar * name); -static GstPadLinkReturn gst_mixmatrix_connect (GstPad *pad, const GstCaps *caps); +static GstPadLinkReturn gst_mixmatrix_connect (GstPad * pad, + const GstCaps * caps); -static void gst_mixmatrix_loop (GstElement *element); +static void gst_mixmatrix_loop (GstElement * element); -static guint gst_mixmatrix_signals[LAST_SIGNAL] = { 0 }; -static GstElementClass *parent_class = NULL; +static guint gst_mixmatrix_signals[LAST_SIGNAL] = { 0 }; +static GstElementClass *parent_class = NULL; GType -gst_mixmatrix_get_type(void) { +gst_mixmatrix_get_type (void) +{ static GType mixmatrix_type = 0; if (!mixmatrix_type) { static const GTypeInfo mixmatrix_info = { - sizeof(GstMixMatrixClass), - (GBaseInitFunc)gst_mixmatrix_base_init, + sizeof (GstMixMatrixClass), + (GBaseInitFunc) gst_mixmatrix_base_init, NULL, - (GClassInitFunc)gst_mixmatrix_class_init, + (GClassInitFunc) gst_mixmatrix_class_init, NULL, NULL, - sizeof(GstMixMatrix), + sizeof (GstMixMatrix), 0, - (GInstanceInitFunc)gst_mixmatrix_init, + (GInstanceInitFunc) gst_mixmatrix_init, }; - mixmatrix_type = g_type_register_static(GST_TYPE_ELEMENT, "GstMixMatrix", &mixmatrix_info, 0); + mixmatrix_type = + g_type_register_static (GST_TYPE_ELEMENT, "GstMixMatrix", + &mixmatrix_info, 0); } return mixmatrix_type; } static void -gst_mixmatrix_base_init (GstMixMatrixClass *klass) +gst_mixmatrix_base_init (GstMixMatrixClass * klass) { GstElementClass *element_class = GST_ELEMENT_CLASS (klass); @@ -153,36 +162,34 @@ gst_mixmatrix_base_init (GstMixMatrixClass *klass) } static void -gst_mixmatrix_class_init (GstMixMatrixClass *klass) +gst_mixmatrix_class_init (GstMixMatrixClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; - gobject_class = (GObjectClass *)klass; - gstelement_class = (GstElementClass *)klass; + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; - parent_class = g_type_class_ref(GST_TYPE_ELEMENT); + parent_class = g_type_class_ref (GST_TYPE_ELEMENT); gst_mixmatrix_signals[RESIZE_SIGNAL] = - g_signal_new("resize", - G_TYPE_FROM_CLASS(klass), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET(GstMixMatrixClass, resize), - NULL, NULL, - g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, 0); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SINKPADS, - g_param_spec_int("sinkpads","Sink Pads","Number of sink pads in matrix", - 0, G_MAXINT, 8, G_PARAM_READABLE)); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SRCPADS, - g_param_spec_int("srcpads","Src Pads","Number of src pads in matrix", - 0, G_MAXINT, 8, G_PARAM_READABLE)); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MATRIXPTR, - g_param_spec_pointer("matrixptr","Matrix Pointer","Pointer to gfloat mix matrix", - G_PARAM_READABLE)); + g_signal_new ("resize", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GstMixMatrixClass, resize), + NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SINKPADS, + g_param_spec_int ("sinkpads", "Sink Pads", + "Number of sink pads in matrix", 0, G_MAXINT, 8, G_PARAM_READABLE)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SRCPADS, + g_param_spec_int ("srcpads", "Src Pads", "Number of src pads in matrix", + 0, G_MAXINT, 8, G_PARAM_READABLE)); + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MATRIXPTR, + g_param_spec_pointer ("matrixptr", "Matrix Pointer", + "Pointer to gfloat mix matrix", G_PARAM_READABLE)); gobject_class->set_property = gst_mixmatrix_set_property; gobject_class->get_property = gst_mixmatrix_get_property; @@ -190,32 +197,34 @@ gst_mixmatrix_class_init (GstMixMatrixClass *klass) } static gfloat ** -mixmatrix_alloc_matrix (int x,int y) +mixmatrix_alloc_matrix (int x, int y) { gfloat **matrix; int i; - GST_DEBUG ("mixmatrix: allocating a %dx%d matrix of floats\n",x,y); - matrix = g_new(gfloat *,x); - GST_DEBUG ("mixmatrix: %p: ",matrix); - for (i=0;i<x;i++) { - matrix[i] = g_new(gfloat,y); - GST_DEBUG ("%p, ",matrix[i]); + + GST_DEBUG ("mixmatrix: allocating a %dx%d matrix of floats\n", x, y); + matrix = g_new (gfloat *, x); + GST_DEBUG ("mixmatrix: %p: ", matrix); + for (i = 0; i < x; i++) { + matrix[i] = g_new (gfloat, y); + GST_DEBUG ("%p, ", matrix[i]); } GST_DEBUG ("\n"); return matrix; } static void -mixmatrix_free_matrix (gfloat **matrix,int x) +mixmatrix_free_matrix (gfloat ** matrix, int x) { int i; - for (i=0;i<x;i++) - g_free(matrix[i]); - g_free(matrix); + + for (i = 0; i < x; i++) + g_free (matrix[i]); + g_free (matrix); } static void -gst_mixmatrix_init (GstMixMatrix *mix) +gst_mixmatrix_init (GstMixMatrix * mix) { mix->grpsize = 8; mix->outsize = 1024; @@ -225,29 +234,31 @@ gst_mixmatrix_init (GstMixMatrix *mix) mix->srcpadalloc = mix->grpsize; // allocate the pads - mix->sinkpads = g_new(GstPad *,mix->sinkpadalloc); - mix->sinkbs = g_new(GstByteStream *,mix->sinkpadalloc); + mix->sinkpads = g_new (GstPad *, mix->sinkpadalloc); + mix->sinkbs = g_new (GstByteStream *, mix->sinkpadalloc); - mix->srcpads = g_new(GstPad *,mix->srcpadalloc); + mix->srcpads = g_new (GstPad *, mix->srcpadalloc); // allocate a similarly sized matrix - mix->matrix = mixmatrix_alloc_matrix(mix->sinkpadalloc,mix->srcpadalloc); + mix->matrix = mixmatrix_alloc_matrix (mix->sinkpadalloc, mix->srcpadalloc); // set the loop function that does all the work - gst_element_set_loop_function(GST_ELEMENT(mix), gst_mixmatrix_loop); + gst_element_set_loop_function (GST_ELEMENT (mix), gst_mixmatrix_loop); } #define ROUND_UP(val,bound) ((((val)/bound)+1)*bound) -static void **grow_ptrlist(void **origlist,int origsize,int newsize) { - void **newlist = g_new(void *,newsize); - memcpy(newlist,origlist,sizeof(void*)*origsize); - g_free(origlist); +static void ** +grow_ptrlist (void **origlist, int origsize, int newsize) +{ + void **newlist = g_new (void *, newsize); + memcpy (newlist, origlist, sizeof (void *) * origsize); + g_free (origlist); return newlist; } void -mixmatrix_resize(GstMixMatrix *mix, int sinkpads, int srcpads) +mixmatrix_resize (GstMixMatrix * mix, int sinkpads, int srcpads) { int sinkresize = (sinkpads != mix->sinkpadalloc); int srcresize = (srcpads != mix->srcpadalloc); @@ -259,32 +270,37 @@ mixmatrix_resize(GstMixMatrix *mix, int sinkpads, int srcpads) // check the sinkpads list if (sinkresize) { - mix->sinkpads = (GstPad **)grow_ptrlist((void **)mix->sinkpads,mix->sinkpadalloc,sinkpads); - mix->sinkbs = (GstByteStream **)grow_ptrlist((void **)mix->sinkbs,mix->sinkpadalloc,sinkpads); + mix->sinkpads = + (GstPad **) grow_ptrlist ((void **) mix->sinkpads, mix->sinkpadalloc, + sinkpads); + mix->sinkbs = + (GstByteStream **) grow_ptrlist ((void **) mix->sinkbs, + mix->sinkpadalloc, sinkpads); } - // check the srcpads list if (srcresize) { - mix->srcpads = (GstPad **)grow_ptrlist((void **)mix->srcpads,mix->srcpadalloc,srcpads); + mix->srcpads = + (GstPad **) grow_ptrlist ((void **) mix->srcpads, mix->srcpadalloc, + srcpads); } - // now resize the matrix if either has changed if (sinkresize || srcresize) { // allocate the new matrix - newmatrix = mixmatrix_alloc_matrix(sinkpads,srcpads); + newmatrix = mixmatrix_alloc_matrix (sinkpads, srcpads); // if only the srcpad count changed (y axis), we can just copy if (!sinkresize) { - memcpy(newmatrix,mix->matrix,sizeof(gfloat *)*sinkpads); - // otherwise we have to copy line by line + memcpy (newmatrix, mix->matrix, sizeof (gfloat *) * sinkpads); + // otherwise we have to copy line by line } else { - for (i=0;i<mix->srcpadalloc;i++) - memcpy(newmatrix[i], mix->matrix[i], sizeof(gfloat) * mix->srcpadalloc); + for (i = 0; i < mix->srcpadalloc; i++) + memcpy (newmatrix[i], mix->matrix[i], + sizeof (gfloat) * mix->srcpadalloc); } // would signal here! // free old matrix and replace it - mixmatrix_free_matrix(mix->matrix, mix->sinkpadalloc); + mixmatrix_free_matrix (mix->matrix, mix->sinkpadalloc); mix->matrix = newmatrix; } @@ -319,76 +335,79 @@ gst_mixmatrix_set_all_caps (GstMixMatrix *mix) */ static GstPadLinkReturn -gst_mixmatrix_connect (GstPad *pad, const GstCaps *caps) +gst_mixmatrix_connect (GstPad * pad, const GstCaps * caps) { - GstMixMatrix *mix = GST_MIXMATRIX(GST_PAD_PARENT(pad)); + GstMixMatrix *mix = GST_MIXMATRIX (GST_PAD_PARENT (pad)); gint i; - for (i=0;i<mix->srcpadalloc;i++) { + for (i = 0; i < mix->srcpadalloc; i++) { if (mix->srcpads[i]) { - if (GST_PAD_CAPS(mix->srcpads[i]) == NULL) { - if (gst_pad_try_set_caps(mix->srcpads[i], caps) <= 0) { + if (GST_PAD_CAPS (mix->srcpads[i]) == NULL) { + if (gst_pad_try_set_caps (mix->srcpads[i], caps) <= 0) { return GST_PAD_LINK_REFUSED; } } } } - mix->caps = gst_caps_copy(caps); + mix->caps = gst_caps_copy (caps); return GST_PAD_LINK_OK; } static GstPad * -gst_mixmatrix_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar *name) +gst_mixmatrix_request_new_pad (GstElement * element, GstPadTemplate * templ, + const gchar * name) { GstMixMatrix *mix; gint padnum; GstPad *pad = NULL; - g_return_val_if_fail(element != NULL, NULL); - g_return_val_if_fail(GST_IS_MIXMATRIX(element), NULL); + g_return_val_if_fail (element != NULL, NULL); + g_return_val_if_fail (GST_IS_MIXMATRIX (element), NULL); - mix = GST_MIXMATRIX(element); + mix = GST_MIXMATRIX (element); // figure out if it's a sink pad - if (sscanf(name,"sink%d",&padnum)) { + if (sscanf (name, "sink%d", &padnum)) { // check to see if it already exists if (padnum < mix->sinkpadalloc && mix->sinkpads[padnum]) return mix->sinkpads[padnum]; // determine if it's bigger than the current size if (padnum >= mix->sinkpadalloc) - mixmatrix_resize(mix, ROUND_UP(padnum,mix->grpsize), mix->sinkpadalloc); - - pad = gst_pad_new_from_template( - gst_static_pad_template_get (&mixmatrix_sink_template), name); - GST_PAD_ELEMENT_PRIVATE(pad) = GINT_TO_POINTER(padnum); - gst_element_add_pad(GST_ELEMENT(mix), pad); + mixmatrix_resize (mix, ROUND_UP (padnum, mix->grpsize), + mix->sinkpadalloc); + + pad = + gst_pad_new_from_template (gst_static_pad_template_get + (&mixmatrix_sink_template), name); + GST_PAD_ELEMENT_PRIVATE (pad) = GINT_TO_POINTER (padnum); + gst_element_add_pad (GST_ELEMENT (mix), pad); // g_signal_connect(G_OBJECT(pad), "unlink", G_CALLBACK(sink_unlinked), mix); gst_pad_set_link_function (pad, gst_mixmatrix_connect); // create a bytestream for it - mix->sinkbs[padnum] = gst_bytestream_new(pad); + mix->sinkbs[padnum] = gst_bytestream_new (pad); // store away the pad and account for it mix->sinkpads[padnum] = pad; } - // or it's a src pad - else if (sscanf(name,"src%d",&padnum)) { + else if (sscanf (name, "src%d", &padnum)) { // check to see if it already exists if (padnum < mix->srcpadalloc && mix->srcpads[padnum]) return mix->srcpads[padnum]; // determine if it's bigger than the current size if (padnum >= mix->srcpadalloc) - mixmatrix_resize(mix, ROUND_UP(padnum,mix->grpsize), mix->srcpadalloc); + mixmatrix_resize (mix, ROUND_UP (padnum, mix->grpsize), mix->srcpadalloc); - pad = gst_pad_new_from_template( - gst_static_pad_template_get (&mixmatrix_src_template), name); - GST_PAD_ELEMENT_PRIVATE(pad) = GINT_TO_POINTER(padnum); - gst_element_add_pad(GST_ELEMENT(mix), pad); + pad = + gst_pad_new_from_template (gst_static_pad_template_get + (&mixmatrix_src_template), name); + GST_PAD_ELEMENT_PRIVATE (pad) = GINT_TO_POINTER (padnum); + gst_element_add_pad (GST_ELEMENT (mix), pad); // g_signal_connect(G_OBJECT(pad), "unlink", G_CALLBACK(sink_unlinked), mix); //gst_pad_set_link_function (pad, gst_mixmatrix_connect); @@ -400,38 +419,38 @@ gst_mixmatrix_request_new_pad (GstElement *element, GstPadTemplate *templ, const } static void -gst_mixmatrix_loop (GstElement *element) +gst_mixmatrix_loop (GstElement * element) { - GstMixMatrix *mix = GST_MIXMATRIX(element); - int i,j,k; + GstMixMatrix *mix = GST_MIXMATRIX (element); + int i, j, k; GstBuffer **inbufs; gfloat **infloats; GstBuffer **outbufs; gfloat **outfloats; - int bytesize = sizeof(gfloat)*mix->outsize; + int bytesize = sizeof (gfloat) * mix->outsize; gfloat gain; // create the output buffers - outbufs = g_new(GstBuffer *,mix->srcpadalloc); - outfloats = g_new(gfloat *,mix->srcpadalloc); - for (i=0;i<mix->srcpadalloc;i++) { + outbufs = g_new (GstBuffer *, mix->srcpadalloc); + outfloats = g_new (gfloat *, mix->srcpadalloc); + for (i = 0; i < mix->srcpadalloc; i++) { if (mix->srcpads[i] != NULL) { - outbufs[i] = gst_buffer_new_and_alloc(bytesize); - outfloats[i] = (gfloat *)GST_BUFFER_DATA(outbufs[i]); - memset(outfloats[i],0,bytesize); + outbufs[i] = gst_buffer_new_and_alloc (bytesize); + outfloats[i] = (gfloat *) GST_BUFFER_DATA (outbufs[i]); + memset (outfloats[i], 0, bytesize); } } // go through all the input buffers and pull them - inbufs = g_new(GstBuffer *,mix->sinkpadalloc); - infloats = g_new(gfloat *,mix->sinkpadalloc); - for (i=0;i<mix->sinkpadalloc;i++) { + inbufs = g_new (GstBuffer *, mix->sinkpadalloc); + infloats = g_new (gfloat *, mix->sinkpadalloc); + for (i = 0; i < mix->sinkpadalloc; i++) { if (mix->sinkpads[i] != NULL) { - gst_bytestream_read(mix->sinkbs[i],&inbufs[i],bytesize); - infloats[i] = (gfloat *)GST_BUFFER_DATA(inbufs[i]); + gst_bytestream_read (mix->sinkbs[i], &inbufs[i], bytesize); + infloats[i] = (gfloat *) GST_BUFFER_DATA (inbufs[i]); // loop through each src pad - for (j=0;j<mix->srcpadalloc;j++) { - if (mix->srcpads[j] != NULL) { + for (j = 0; j < mix->srcpadalloc; j++) { + if (mix->srcpads[j] != NULL) { /* { int z; @@ -442,31 +461,32 @@ gst_mixmatrix_loop (GstElement *element) } fprintf(stderr,"attempting to get gain for %dx%d\n",i,j); */ - gain = mix->matrix[i][j]; + gain = mix->matrix[i][j]; // fprintf(stderr,"%d->%d=%0.2f ",i,j,gain); - for (k=0;k<mix->outsize;k++) { - outfloats[j][k] += infloats[i][k] * gain; - } - } + for (k = 0; k < mix->outsize; k++) { + outfloats[j][k] += infloats[i][k] * gain; + } + } } } } // fprintf(stderr,"\n"); - for (i=0;i<mix->srcpadalloc;i++) { + for (i = 0; i < mix->srcpadalloc; i++) { if (mix->srcpads[i] != NULL) { - gst_pad_push(mix->srcpads[i],GST_DATA (outbufs[i])); + gst_pad_push (mix->srcpads[i], GST_DATA (outbufs[i])); } } } static void -gst_mixmatrix_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) +gst_mixmatrix_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) { GstMixMatrix *mix; - g_return_if_fail(GST_IS_MIXMATRIX(object)); - mix = GST_MIXMATRIX(object); + g_return_if_fail (GST_IS_MIXMATRIX (object)); + mix = GST_MIXMATRIX (object); switch (prop_id) { default: @@ -475,22 +495,23 @@ gst_mixmatrix_set_property (GObject *object, guint prop_id, const GValue *value, } static void -gst_mixmatrix_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) +gst_mixmatrix_get_property (GObject * object, guint prop_id, GValue * value, + GParamSpec * pspec) { GstMixMatrix *mix; - g_return_if_fail(GST_IS_MIXMATRIX(object)); - mix = GST_MIXMATRIX(object); + g_return_if_fail (GST_IS_MIXMATRIX (object)); + mix = GST_MIXMATRIX (object); switch (prop_id) { case ARG_SINKPADS: - g_value_set_int(value, mix->sinkpadalloc); + g_value_set_int (value, mix->sinkpadalloc); break; case ARG_SRCPADS: - g_value_set_int(value, mix->srcpadalloc); + g_value_set_int (value, mix->srcpadalloc); break; case ARG_MATRIXPTR: - g_value_set_pointer(value, mix->matrix); + g_value_set_pointer (value, mix->matrix); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); @@ -499,23 +520,17 @@ gst_mixmatrix_get_property (GObject *object, guint prop_id, GValue *value, GPara } static gboolean -plugin_init (GstPlugin *plugin) +plugin_init (GstPlugin * plugin) { if (!gst_library_load ("gstbytestream")) return FALSE; return gst_element_register (plugin, "mixmatrix", - GST_RANK_NONE, GST_TYPE_MIXMATRIX); + GST_RANK_NONE, GST_TYPE_MIXMATRIX); } -GST_PLUGIN_DEFINE ( - GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "mixmatrix", - "An audio mixer matrix", - plugin_init, - VERSION, - GST_LICENSE, - GST_PACKAGE, - GST_ORIGIN -) +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "mixmatrix", + "An audio mixer matrix", + plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN) |