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this is basically a rewrite of the volume plugin:

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Original commit message from CVS:
this is basically a rewrite of the volume plugin:
- now uses dparams for volume and mute
- only supports signed gint16 and float (other types can be easily added but I don't think that will be required)
- "muted" property is now "mute"
- it might be faster because there are now no conditionals in the chain func
This commit is contained in:
Steve Baker 2002-04-28 16:07:41 +00:00
parent a3dee4579d
commit 00ffafbbb4
3 changed files with 206 additions and 153 deletions
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2
common

@ -1 +1 @@
Subproject commit 745e216da016ee67bb498de56969c266ffa29d8c Subproject commit 00d89f598b34ec2b5319856fe7b3f5625df28d48

330
gst/volume/gstvolume.c
View File

@ -21,6 +21,7 @@
#include <string.h> #include <string.h>
#include <gst/gst.h> #include <gst/gst.h>
#include <gst/audio/audio.h> #include <gst/audio/audio.h>
#include <gst/control/control.h>
#include "gstvolume.h" #include "gstvolume.h"
@ -44,56 +45,78 @@ enum {
enum { enum {
ARG_0, ARG_0,
ARG_SILENT, ARG_SILENT,
ARG_MUTED, ARG_MUTE,
ARG_VOLUME ARG_VOLUME
}; };
static GstPadTemplate* GST_PAD_TEMPLATE_FACTORY (volume_sink_factory,
volume_sink_factory (void) "sink",
{ GST_PAD_SINK,
static GstPadTemplate *template = NULL; GST_PAD_ALWAYS,
GST_CAPS_NEW (
if (!template) { "volume_float_sink",
template = gst_pad_template_new "audio/raw",
("sink", GST_PAD_SINK, GST_PAD_ALWAYS, "rate", GST_PROPS_INT_RANGE (1, G_MAXINT),
gst_caps_append(gst_caps_new ("sink_int", "audio/raw", "format", GST_PROPS_STRING ("float"),
GST_AUDIO_INT_PAD_TEMPLATE_PROPS), "layout", GST_PROPS_STRING ("gfloat"),
gst_caps_new ("sink_float", "audio/raw", "intercept", GST_PROPS_FLOAT(0.0),
GST_AUDIO_FLOAT_MONO_PAD_TEMPLATE_PROPS)), "slope", GST_PROPS_FLOAT(1.0),
NULL); "channels", GST_PROPS_INT (1)
} ),
return template; GST_CAPS_NEW (
} "volume_int_sink",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"channels", GST_PROPS_INT_RANGE (1, G_MAXINT),
"rate", GST_PROPS_INT_RANGE (1, G_MAXINT),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"width", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"signed", GST_PROPS_BOOLEAN (TRUE)
)
);
static GstPadTemplate* GST_PAD_TEMPLATE_FACTORY (volume_src_factory,
volume_src_factory (void) "src",
{ GST_PAD_SRC,
static GstPadTemplate *template = NULL; GST_PAD_ALWAYS,
GST_CAPS_NEW (
if (!template) "volume_float_src",
template = gst_pad_template_new "audio/raw",
("src", GST_PAD_SRC, GST_PAD_ALWAYS, "rate", GST_PROPS_INT_RANGE (1, G_MAXINT),
gst_caps_append (gst_caps_new ("src_float", "audio/raw", "format", GST_PROPS_STRING ("float"),
GST_AUDIO_FLOAT_MONO_PAD_TEMPLATE_PROPS), "layout", GST_PROPS_STRING ("gfloat"),
gst_caps_new ("src_int", "audio/raw", "intercept", GST_PROPS_FLOAT(0.0),
GST_AUDIO_INT_PAD_TEMPLATE_PROPS)), "slope", GST_PROPS_FLOAT(1.0),
NULL); "channels", GST_PROPS_INT (1)
),
return template; GST_CAPS_NEW (
} "volume_int_src",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"channels", GST_PROPS_INT_RANGE (1, G_MAXINT),
"rate", GST_PROPS_INT_RANGE (1, G_MAXINT),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"width", GST_PROPS_INT (16),
"depth", GST_PROPS_INT (16),
"signed", GST_PROPS_BOOLEAN (TRUE)
)
);
static void volume_class_init (GstVolumeClass *klass); static void volume_class_init (GstVolumeClass *klass);
static void volume_init (GstVolume *filter); static void volume_init (GstVolume *filter);
static void volume_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void volume_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void volume_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void volume_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void volume_update_volume (const GValue *value, gpointer data);
static void volume_update_mute (const GValue *value, gpointer data);
static gboolean volume_parse_caps (GstVolume *filter, GstCaps *caps); static gboolean volume_parse_caps (GstVolume *filter, GstCaps *caps);
static void volume_chain (GstPad *pad, GstBuffer *buf); static void volume_chain_float (GstPad *pad, GstBuffer *buf);
static void inline volume_fast_float_chain (gfloat* data, guint numsamples, GstVolume *filter); static void volume_chain_int16 (GstPad *pad, GstBuffer *buf);
static void inline volume_fast_8bit_chain (gint8* data, guint numsamples, GstVolume *filter);
static void inline volume_fast_16bit_chain (gint16* data, guint numsamples, GstVolume *filter);
static GstElementClass *parent_class = NULL; static GstElementClass *parent_class = NULL;
/*static guint gst_filter_signals[LAST_SIGNAL] = { 0 }; */ /*static guint gst_filter_signals[LAST_SIGNAL] = { 0 }; */
@ -134,44 +157,22 @@ volume_parse_caps (GstVolume *filter, GstCaps *caps)
{ {
const gchar *format; const gchar *format;
g_return_val_if_fail(filter!=NULL,-1); g_return_val_if_fail(filter!=NULL,FALSE);
g_return_val_if_fail(caps!=NULL,-1); g_return_val_if_fail(caps!=NULL,FALSE);
gst_caps_get_string (caps, "format", &format); gst_caps_get_string (caps, "format", &format);
gst_caps_get_int (caps, "rate", &filter->rate);
gst_caps_get_int (caps, "channels", &filter->channels);
if (strcmp(format, "int")==0) { if (strcmp(format, "int")==0) {
filter->format = GST_VOLUME_FORMAT_INT; gst_pad_set_chain_function(filter->sinkpad,volume_chain_int16);
gst_caps_get_int (caps, "width", &filter->width); return TRUE;
gst_caps_get_int (caps, "depth", &filter->depth);
gst_caps_get_int (caps, "law", &filter->law);
gst_caps_get_int (caps, "endianness", &filter->endianness);
gst_caps_get_boolean (caps, "signed", &filter->is_signed);
if (!filter->silent) {
g_print ("Volume : channels %d, rate %d\n",
filter->channels, filter->rate);
g_print ("Volume : format int, bit width %d, endianness %d, signed %s\n",
filter->width, filter->endianness, filter->is_signed ? "yes" : "no");
}
} else if (strcmp(format, "float")==0) {
filter->format = GST_VOLUME_FORMAT_FLOAT;
gst_caps_get_string (caps, "layout", &filter->layout);
gst_caps_get_float (caps, "intercept", &filter->intercept);
gst_caps_get_float (caps, "slope", &filter->slope);
if (!filter->silent) {
g_print ("Volume : channels %d, rate %d\n",
filter->channels, filter->rate);
g_print ("Volume : format float, layout %s, intercept %f, slope %f\n",
filter->layout, filter->intercept, filter->slope);
}
} else {
return FALSE;
} }
return TRUE;
if (strcmp(format, "float")==0) {
gst_pad_set_chain_function(filter->sinkpad,volume_chain_float);
return TRUE;
}
return FALSE;
} }
@ -206,12 +207,8 @@ volume_class_init (GstVolumeClass *klass)
parent_class = g_type_class_ref(GST_TYPE_ELEMENT); parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_SILENT, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUTE,
g_param_spec_boolean("silent","silent","silent", g_param_spec_boolean("mute","mute","mute",
TRUE,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUTED,
g_param_spec_boolean("muted","muted","muted",
FALSE,G_PARAM_READWRITE)); FALSE,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VOLUME, g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_VOLUME,
@ -233,67 +230,141 @@ volume_init (GstVolume *filter)
gst_element_add_pad(GST_ELEMENT(filter),filter->sinkpad); gst_element_add_pad(GST_ELEMENT(filter),filter->sinkpad);
gst_element_add_pad(GST_ELEMENT(filter),filter->srcpad); gst_element_add_pad(GST_ELEMENT(filter),filter->srcpad);
gst_pad_set_chain_function(filter->sinkpad,volume_chain); gst_pad_set_chain_function(filter->sinkpad,volume_chain_int16);
filter->silent = FALSE; filter->mute = FALSE;
filter->muted = FALSE;
filter->volume_i = 8192; filter->volume_i = 8192;
filter->volume_f = 1.0; filter->volume_f = 1.0;
filter->dpman = gst_dpman_new ("volume_dpman", GST_ELEMENT(filter));
gst_dpman_add_required_dparam_callback (
filter->dpman,
g_param_spec_int("mute","Mute","Mute the audio",
0, 1, 0, G_PARAM_READWRITE),
"int",
volume_update_mute,
filter
);
gst_dpman_add_required_dparam_callback (
filter->dpman,
g_param_spec_float("volume","Volume","Volume of the audio",
-4.0, 4.0, 1.0, G_PARAM_READWRITE),
"scalar",
volume_update_volume,
filter
);
} }
static void static void
volume_chain (GstPad *pad, GstBuffer *buf) volume_chain_float (GstPad *pad, GstBuffer *buf)
{ {
GstVolume *filter; GstVolume *filter;
gint16 *int_data; GstBuffer *out_buf;
gfloat *float_data; gfloat *data;
gint i, sample_countdown, num_samples;
g_return_if_fail(pad != NULL);
g_return_if_fail(GST_IS_PAD(pad)); g_return_if_fail(GST_IS_PAD(pad));
g_return_if_fail(buf != NULL); g_return_if_fail(buf != NULL);
filter = GST_VOLUME(GST_OBJECT_PARENT (pad)); filter = GST_VOLUME(GST_OBJECT_PARENT (pad));
g_return_if_fail(filter != NULL);
g_return_if_fail(GST_IS_VOLUME(filter)); g_return_if_fail(GST_IS_VOLUME(filter));
if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_READONLY))
buf = gst_buffer_copy (buf);
switch (filter->format) {
case GST_VOLUME_FORMAT_INT:
int_data = (gint16 *)GST_BUFFER_DATA(buf);
switch (filter->width) { if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_READONLY)){
case 16: out_buf = gst_buffer_copy (buf);
volume_fast_16bit_chain(int_data,GST_BUFFER_SIZE(buf)/2, filter); gst_buffer_unref(buf);
break; }
case 8: else {
volume_fast_8bit_chain((gint8*)int_data,GST_BUFFER_SIZE(buf), filter); out_buf = buf;
break; }
}
break; data = (gfloat *)GST_BUFFER_DATA(out_buf);
case GST_VOLUME_FORMAT_FLOAT: num_samples = GST_BUFFER_SIZE(out_buf)/sizeof(gfloat);
float_data = (gfloat *)GST_BUFFER_DATA(buf); sample_countdown = GST_DPMAN_PREPROCESS(filter->dpman, num_samples, GST_BUFFER_TIMESTAMP(out_buf));
i = 0;
volume_fast_float_chain(float_data,GST_BUFFER_SIZE(buf)/sizeof(float), filter); while(GST_DPMAN_PROCESS_COUNTDOWN(filter->dpman, sample_countdown, i)) {
data[i++] *= filter->real_vol_f;
break;
} }
gst_pad_push(filter->srcpad,buf); gst_pad_push(filter->srcpad,out_buf);
} }
static void inline static void
volume_fast_float_chain(gfloat* data, guint num_samples, GstVolume *filter) volume_chain_int16 (GstPad *pad, GstBuffer *buf)
#include "filter.func" {
GstVolume *filter;
GstBuffer *out_buf;
gint16 *data;
gint i, sample_countdown, num_samples;
static void inline g_return_if_fail(GST_IS_PAD(pad));
volume_fast_16bit_chain(gint16* data, guint num_samples, GstVolume *filter) g_return_if_fail(buf != NULL);
#include "filter.func"
filter = GST_VOLUME(GST_OBJECT_PARENT (pad));
g_return_if_fail(GST_IS_VOLUME(filter));
static void inline if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_READONLY)){
volume_fast_8bit_chain(gint8* data, guint num_samples, GstVolume *filter) out_buf = gst_buffer_copy (buf);
#include "filter.func" gst_buffer_unref(buf);
}
else {
out_buf = buf;
}
data = (gint16 *)GST_BUFFER_DATA(out_buf);
num_samples = GST_BUFFER_SIZE(out_buf)/sizeof(gint16);
sample_countdown = GST_DPMAN_PREPROCESS(filter->dpman, num_samples, GST_BUFFER_TIMESTAMP(out_buf));
i = 0;
while(GST_DPMAN_PROCESS_COUNTDOWN(filter->dpman, sample_countdown, i)) {
data[i] = (gint16)(filter->real_vol_i * (gint)data[i++] / 8192);
}
gst_pad_push(filter->srcpad,out_buf);
}
static void
volume_update_mute(const GValue *value, gpointer data)
{
GstVolume *filter = (GstVolume*)data;
g_return_if_fail(GST_IS_VOLUME(filter));
if (G_VALUE_HOLDS_BOOLEAN(value)){
filter->mute = g_value_get_boolean(value);
}
else if (G_VALUE_HOLDS_INT(value)){
filter->mute = (g_value_get_int(value) == 1);
}
if (filter->mute){
filter->real_vol_f = 0.0;
filter->real_vol_i = 0;
}
else {
filter->real_vol_f = filter->volume_f;
filter->real_vol_i = filter->volume_i;
}
}
static void
volume_update_volume(const GValue *value, gpointer data)
{
GstVolume *filter = (GstVolume*)data;
g_return_if_fail(GST_IS_VOLUME(filter));
filter->volume_f = g_value_get_float (value);
filter->volume_i = filter->volume_f*8192;
if (filter->mute){
filter->real_vol_f = 0.0;
filter->real_vol_i = 0;
}
else {
filter->real_vol_f = filter->volume_f;
filter->real_vol_i = filter->volume_i;
}
}
static void static void
volume_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) volume_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
@ -306,15 +377,13 @@ volume_set_property (GObject *object, guint prop_id, const GValue *value, GParam
switch (prop_id) switch (prop_id)
{ {
case ARG_SILENT: case ARG_MUTE:
filter->silent = g_value_get_boolean (value); gst_dpman_bypass_dparam(filter->dpman, "mute");
break; volume_update_mute(value, filter);
case ARG_MUTED:
filter->muted = g_value_get_boolean (value);
break; break;
case ARG_VOLUME: case ARG_VOLUME:
filter->volume_f = g_value_get_float (value); gst_dpman_bypass_dparam(filter->dpman, "volume");
filter->volume_i = filter->volume_f*8192; volume_update_volume(value, filter);
break; break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -332,11 +401,8 @@ volume_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *
filter = GST_VOLUME(object); filter = GST_VOLUME(object);
switch (prop_id) { switch (prop_id) {
case ARG_SILENT: case ARG_MUTE:
g_value_set_boolean (value, filter->silent); g_value_set_boolean (value, filter->mute);
break;
case ARG_MUTED:
g_value_set_boolean (value, filter->muted);
break; break;
case ARG_VOLUME: case ARG_VOLUME:
g_value_set_float (value, filter->volume_f); g_value_set_float (value, filter->volume_f);
@ -361,6 +427,12 @@ plugin_init (GModule *module, GstPlugin *plugin)
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
/* load dparam support library */
if (!gst_library_load ("gstcontrol"))
{
gst_info ("volume: could not load support library: 'gstcontrol'\n");
return FALSE;
}
return TRUE; return TRUE;
} }

27
gst/volume/gstvolume.h
View File

@ -57,31 +57,12 @@ struct _GstVolume {
GstElement element; GstElement element;
GstPad *sinkpad, *srcpad; GstPad *sinkpad, *srcpad;
GstDParamManager *dpman;
gboolean silent; gboolean mute;
gboolean muted; gint volume_i, real_vol_i;
gint16 volume_i; gfloat volume_f, real_vol_f;
gfloat volume_f;
/* the next three are valid for both int and float */
GstVolumeFormat format;
guint rate;
guint channels;
/* the next five are valid only for format==GST_VOLUME_FORMAT_INT */
guint width;
guint depth;
guint endianness;
guint law;
gboolean is_signed;
/* the next three are valid only for format==GST_VOLUME_FORMAT_FLOAT */
const gchar *layout;
gfloat slope;
gfloat intercept;
}; };
struct _GstVolumeClass { struct _GstVolumeClass {