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gst/volume/: Use GstAudioFilter as base class for the volume element instead of plain GstBaseTransform.

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Original commit message from CVS:
* gst/volume/Makefile.am:
* gst/volume/gstvolume.c: (volume_choose_func),
(gst_volume_base_init), (gst_volume_class_init), (gst_volume_init),
(volume_setup):
* gst/volume/gstvolume.h:
Use GstAudioFilter as base class for the volume element instead of
plain GstBaseTransform.
This commit is contained in:
Sebastian Dröge 2008-01-03 20:33:58 +00:00
parent a000758477
commit 3ac84ec4ff
4 changed files with 81 additions and 128 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2008-01-03 Sebastian Dröge <slomo@circular-chaos.org>
* gst/volume/Makefile.am:
* gst/volume/gstvolume.c: (volume_choose_func),
(gst_volume_base_init), (gst_volume_class_init), (gst_volume_init),
(volume_setup):
* gst/volume/gstvolume.h:
Use GstAudioFilter as base class for the volume element instead of
plain GstBaseTransform.
2008-01-03 Sebastian Dröge <slomo@circular-chaos.org> 2008-01-03 Sebastian Dröge <slomo@circular-chaos.org>
* gst-libs/gst/audio/gstaudiofilter.c: (gst_audio_filter_get_type): * gst-libs/gst/audio/gstaudiofilter.c: (gst_audio_filter_get_type):

1
gst/volume/Makefile.am
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@ -5,6 +5,7 @@ libgstvolume_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CON
libgstvolume_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) libgstvolume_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstvolume_la_LIBADD = \ libgstvolume_la_LIBADD = \
$(top_builddir)/gst-libs/gst/interfaces/libgstinterfaces-$(GST_MAJORMINOR).la \ $(top_builddir)/gst-libs/gst/interfaces/libgstinterfaces-$(GST_MAJORMINOR).la \
$(top_builddir)/gst-libs/gst/audio/libgstaudio-$(GST_MAJORMINOR).la \
$(GST_BASE_LIBS) \ $(GST_BASE_LIBS) \
$(GST_CONTROLLER_LIBS) \ $(GST_CONTROLLER_LIBS) \
$(GST_LIBS) \ $(GST_LIBS) \

184
gst/volume/gstvolume.c
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@ -50,6 +50,8 @@
#include <gst/audio/audio.h> #include <gst/audio/audio.h>
#include <gst/interfaces/mixer.h> #include <gst/interfaces/mixer.h>
#include <gst/controller/gstcontroller.h> #include <gst/controller/gstcontroller.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiofilter.h>
#include <liboil/liboil.h> #include <liboil/liboil.h>
#include "gstvolume.h" #include "gstvolume.h"
@ -102,79 +104,40 @@ enum
PROP_VOLUME PROP_VOLUME
}; };
static GstStaticPadTemplate volume_sink_template = #define ALLOWED_CAPS \
GST_STATIC_PAD_TEMPLATE ("sink", "audio/x-raw-float, " \
GST_PAD_SINK, "rate = (int) [ 1, MAX ], " \
GST_PAD_ALWAYS, "channels = (int) [ 1, MAX ], " \
GST_STATIC_CAPS ("audio/x-raw-float, " "endianness = (int) BYTE_ORDER, " \
"rate = (int) [ 1, MAX ], " "width = (int) {32, 64}; " \
"channels = (int) [ 1, MAX ], " "audio/x-raw-int, " \
"endianness = (int) BYTE_ORDER, " "channels = (int) [ 1, MAX ], " \
"width = (int) {32, 64}; " "rate = (int) [ 1, MAX ], " \
"audio/x-raw-int, " "endianness = (int) BYTE_ORDER, " \
"channels = (int) [ 1, MAX ], " "width = (int) 8, " \
"rate = (int) [ 1, MAX ], " "depth = (int) 8, " \
"endianness = (int) BYTE_ORDER, " "signed = (bool) TRUE; " \
"width = (int) 8, " "audio/x-raw-int, " \
"depth = (int) 8, " "channels = (int) [ 1, MAX ], " \
"signed = (bool) TRUE; " "rate = (int) [ 1, MAX ], " \
"audio/x-raw-int, " "endianness = (int) BYTE_ORDER, " \
"channels = (int) [ 1, MAX ], " "width = (int) 16, " \
"rate = (int) [ 1, MAX ], " "depth = (int) 16, " \
"endianness = (int) BYTE_ORDER, " "signed = (bool) TRUE; " \
"width = (int) 16, " "audio/x-raw-int, " \
"depth = (int) 16, " "channels = (int) [ 1, MAX ], " \
"signed = (bool) TRUE; " "rate = (int) [ 1, MAX ], " \
"audio/x-raw-int, " "endianness = (int) BYTE_ORDER, " \
"channels = (int) [ 1, MAX ], " "width = (int) 24, " \
"rate = (int) [ 1, MAX ], " "depth = (int) 24, " \
"endianness = (int) BYTE_ORDER, " "signed = (bool) TRUE; " \
"width = (int) 24, " "audio/x-raw-int, " \
"depth = (int) 24, " "channels = (int) [ 1, MAX ], " \
"signed = (bool) TRUE; " "rate = (int) [ 1, MAX ], " \
"audio/x-raw-int, " "endianness = (int) BYTE_ORDER, " \
"channels = (int) [ 1, MAX ], " "width = (int) 32, " \
"rate = (int) [ 1, MAX ], " "depth = (int) 32, " \
"endianness = (int) BYTE_ORDER, " "signed = (bool) TRUE"
"width = (int) 32, " "depth = (int) 32, " "signed = (bool) TRUE")
);
static GstStaticPadTemplate volume_src_template = GST_STATIC_PAD_TEMPLATE
("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-float, "
"rate = (int) [ 1, MAX ], "
"channels = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) {32, 64}; "
"audio/x-raw-int, "
"channels = (int) [ 1, MAX ], "
"rate = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 8, "
"depth = (int) 8, "
"signed = (bool) TRUE; "
"audio/x-raw-int, "
"channels = (int) [ 1, MAX ], "
"rate = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, "
"depth = (int) 16, "
"signed = (bool) TRUE; "
"audio/x-raw-int, "
"channels = (int) [ 1, MAX ], "
"rate = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 24, "
"depth = (int) 24, "
"signed = (bool) TRUE; "
"audio/x-raw-int, "
"channels = (int) [ 1, MAX ], "
"rate = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 32, " "depth = (int) 32, " "signed = (bool) TRUE")
);
static void gst_volume_interface_init (GstImplementsInterfaceClass * klass); static void gst_volume_interface_init (GstImplementsInterfaceClass * klass);
static void gst_volume_mixer_init (GstMixerClass * iface); static void gst_volume_mixer_init (GstMixerClass * iface);
@ -197,8 +160,8 @@ static void gst_volume_mixer_init (GstMixerClass * iface);
g_type_add_interface_static (type, GST_TYPE_MIXER, &volmixer_info); \ g_type_add_interface_static (type, GST_TYPE_MIXER, &volmixer_info); \
} }
GST_BOILERPLATE_FULL (GstVolume, gst_volume, GstBaseTransform, GST_BOILERPLATE_FULL (GstVolume, gst_volume, GstAudioFilter,
GST_TYPE_BASE_TRANSFORM, _init_interfaces); GST_TYPE_AUDIO_FILTER, _init_interfaces);
static void volume_set_property (GObject * object, guint prop_id, static void volume_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec); const GValue * value, GParamSpec * pspec);
@ -209,8 +172,8 @@ static void volume_update_mute (const GValue * value, gpointer data);
static GstFlowReturn volume_transform_ip (GstBaseTransform * base, static GstFlowReturn volume_transform_ip (GstBaseTransform * base,
GstBuffer * outbuf); GstBuffer * outbuf);
static gboolean volume_set_caps (GstBaseTransform * base, GstCaps * incaps, static gboolean volume_setup (GstAudioFilter * filter,
GstCaps * outcaps); GstRingBufferSpec * format);
static void volume_process_double (GstVolume * this, gpointer bytes, static void volume_process_double (GstVolume * this, gpointer bytes,
guint n_bytes); guint n_bytes);
@ -236,13 +199,17 @@ static void volume_process_int8_clamp (GstVolume * this, gpointer bytes,
/* helper functions */ /* helper functions */
static void static gboolean
volume_choose_func (GstVolume * this) volume_choose_func (GstVolume * this)
{ {
this->process = NULL; this->process = NULL;
switch (this->format) {
case GST_VOLUME_FORMAT_INT: if (GST_AUDIO_FILTER (this)->format.caps == NULL)
switch (this->width) { return FALSE;
switch (GST_AUDIO_FILTER (this)->format.type) {
case GST_BUFTYPE_LINEAR:
switch (GST_AUDIO_FILTER (this)->format.width) {
case 32: case 32:
/* only clamp if the gain is greater than 1.0 /* only clamp if the gain is greater than 1.0
* FIXME: real_vol_i can change while processing the buffer! * FIXME: real_vol_i can change while processing the buffer!
@ -281,8 +248,8 @@ volume_choose_func (GstVolume * this)
break; break;
} }
break; break;
case GST_VOLUME_FORMAT_FLOAT: case GST_BUFTYPE_FLOAT:
switch (this->width) { switch (GST_AUDIO_FILTER (this)->format.width) {
case 32: case 32:
this->process = volume_process_float; this->process = volume_process_float;
break; break;
@ -294,6 +261,8 @@ volume_choose_func (GstVolume * this)
default: default:
break; break;
} }
return (this->process != NULL);
} }
static void static void
@ -419,12 +388,14 @@ static void
gst_volume_base_init (gpointer g_class) gst_volume_base_init (gpointer g_class)
{ {
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstAudioFilterClass *filter_class = GST_AUDIO_FILTER_CLASS (g_class);
GstCaps *caps;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&volume_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&volume_sink_template));
gst_element_class_set_details (element_class, &volume_details); gst_element_class_set_details (element_class, &volume_details);
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (filter_class, caps);
gst_caps_unref (caps);
} }
static void static void
@ -432,9 +403,11 @@ gst_volume_class_init (GstVolumeClass * klass)
{ {
GObjectClass *gobject_class; GObjectClass *gobject_class;
GstBaseTransformClass *trans_class; GstBaseTransformClass *trans_class;
GstAudioFilterClass *filter_class;
gobject_class = (GObjectClass *) klass; gobject_class = (GObjectClass *) klass;
trans_class = (GstBaseTransformClass *) klass; trans_class = (GstBaseTransformClass *) klass;
filter_class = (GstAudioFilterClass *) (klass);
gobject_class->set_property = volume_set_property; gobject_class->set_property = volume_set_property;
gobject_class->get_property = volume_get_property; gobject_class->get_property = volume_get_property;
@ -452,7 +425,7 @@ gst_volume_class_init (GstVolumeClass * klass)
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "volume", 0, "Volume gain"); GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "volume", 0, "Volume gain");
trans_class->transform_ip = GST_DEBUG_FUNCPTR (volume_transform_ip); trans_class->transform_ip = GST_DEBUG_FUNCPTR (volume_transform_ip);
trans_class->set_caps = GST_DEBUG_FUNCPTR (volume_set_caps); filter_class->setup = GST_DEBUG_FUNCPTR (volume_setup);
} }
static void static void
@ -467,7 +440,6 @@ gst_volume_init (GstVolume * this, GstVolumeClass * g_class)
this->volume_i32 = this->real_vol_i32 = VOLUME_UNITY_INT32; this->volume_i32 = this->real_vol_i32 = VOLUME_UNITY_INT32;
this->volume_f = this->real_vol_f = 1.0; this->volume_f = this->real_vol_f = 1.0;
this->tracklist = NULL; this->tracklist = NULL;
this->format = GST_VOLUME_FORMAT_NONE;
track = g_object_new (GST_TYPE_MIXER_TRACK, NULL); track = g_object_new (GST_TYPE_MIXER_TRACK, NULL);
@ -690,39 +662,15 @@ volume_process_int8_clamp (GstVolume * this, gpointer bytes, guint n_bytes)
/* get notified of caps and plug in the correct process function */ /* get notified of caps and plug in the correct process function */
static gboolean static gboolean
volume_set_caps (GstBaseTransform * base, GstCaps * incaps, GstCaps * outcaps) volume_setup (GstAudioFilter * filter, GstRingBufferSpec * format)
{ {
GstVolume *this = GST_VOLUME (base); GstVolume *this = GST_VOLUME (filter);
const gchar *mimetype;
GstStructure *structure;
GST_DEBUG_OBJECT (this,
"set_caps: in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps, outcaps);
structure = gst_caps_get_structure (incaps, 0);
gst_structure_get_int (structure, "width", &this->width);
mimetype = gst_structure_get_name (structure);
/* based on mimetype, choose the correct volume_process format */
if (strcmp (mimetype, "audio/x-raw-int") == 0) {
this->format = GST_VOLUME_FORMAT_INT;
GST_DEBUG_OBJECT (this, "use int: %u", this->width);
} else if (strcmp (mimetype, "audio/x-raw-float") == 0) {
this->format = GST_VOLUME_FORMAT_FLOAT;
GST_DEBUG_OBJECT (this, "use float: %u", this->width);
} else {
this->process = NULL;
goto invalid_format;
}
volume_choose_func (this);
if (volume_choose_func (this)) {
return TRUE; return TRUE;
} else {
/* ERRORS */
invalid_format:
{
GST_ELEMENT_ERROR (this, CORE, NEGOTIATION, GST_ELEMENT_ERROR (this, CORE, NEGOTIATION,
("Invalid incoming caps: %" GST_PTR_FORMAT, incaps), (NULL)); ("Invalid incoming format"), (NULL));
return FALSE; return FALSE;
} }
} }

14
gst/volume/gstvolume.h
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@ -25,6 +25,8 @@
#include <gst/gst.h> #include <gst/gst.h>
#include <gst/base/gstbasetransform.h> #include <gst/base/gstbasetransform.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiofilter.h>
G_BEGIN_DECLS G_BEGIN_DECLS
@ -42,19 +44,13 @@ G_BEGIN_DECLS
typedef struct _GstVolume GstVolume; typedef struct _GstVolume GstVolume;
typedef struct _GstVolumeClass GstVolumeClass; typedef struct _GstVolumeClass GstVolumeClass;
typedef enum {
GST_VOLUME_FORMAT_NONE,
GST_VOLUME_FORMAT_INT,
GST_VOLUME_FORMAT_FLOAT
} GstVolumeFormat;
/** /**
* GstVolume: * GstVolume:
* *
* Opaque data structure. * Opaque data structure.
*/ */
struct _GstVolume { struct _GstVolume {
GstBaseTransform element; GstAudioFilter element;
void (*process)(GstVolume*, gpointer, guint); void (*process)(GstVolume*, gpointer, guint);
@ -66,13 +62,11 @@ struct _GstVolume {
gfloat volume_f, real_vol_f; /* _f(loat) values on each update */ gfloat volume_f, real_vol_f; /* _f(loat) values on each update */
GList *tracklist; GList *tracklist;
GstVolumeFormat format; /* caps variables */
gint width;
gboolean silent_buffer; /* flag for silent buffers */ gboolean silent_buffer; /* flag for silent buffers */
}; };
struct _GstVolumeClass { struct _GstVolumeClass {
GstBaseTransformClass parent_class; GstAudioFilterClass parent_class;
}; };
GType gst_volume_get_type (void); GType gst_volume_get_type (void);