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+ some whitespace changes + adding dummy definitions to prepare for float caps

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Original commit message from CVS:
+ some whitespace changes
+ adding dummy definitions to prepare for float caps
This commit is contained in:
Leif Johnson 2003-07-19 22:58:41 +00:00
parent f761e28ff2
commit 2ad6bd23cf
1 changed files with 292 additions and 329 deletions
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321
gst/audioconvert/gstaudioconvert.c
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@ -19,15 +19,14 @@
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <string.h>
#if 0
static void
print_caps (GstCaps *caps)
@ -53,17 +52,42 @@ print_caps (GstCaps *caps)
#define GST_IS_AUDIO_CONVERT_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_CONVERT))
typedef struct _GstAudioConvert GstAudioConvert;
typedef struct _GstAudioConvertCaps GstAudioConvertCaps;
typedef struct _GstAudioConvertClass GstAudioConvertClass;
/* this struct is a handy way of passing around all the caps info ... */
struct _GstAudioConvertCaps {
/* general caps */
gint endianness;
gint width;
gint rate;
gint channels;
gboolean is_float; /* true iff a pad is carrying float data */
/* int audio caps */
gint depth;
gboolean is_signed;
/* float audio caps */
guint buffer_frames;
};
struct _GstAudioConvert {
GstElement element;
/* pads */
GstPad * sink;
GstPad * src;
/* properties */
gboolean aggressive;
guint min_rate, max_rate, rate_steps;
/* caps: 0 = sink, 1 = src, so always convert from 0 to 1 */
gboolean caps_set[2];
GstAudioConvertCaps caps[2];
gint law[2];
gint endian[2];
gint sign[2];
@ -71,6 +95,9 @@ struct _GstAudioConvert {
gint width[2]; /* in BYTES */
gint rate[2];
gint channels[2];
/* conversion functions */
GstBuffer * (* convert_internal) (GstAudioConvert *this, GstBuffer *buf);
};
struct _GstAudioConvertClass {
@ -81,100 +108,73 @@ struct _GstAudioConvertClass {
static GType gst_audio_convert_get_type (void);
static void gst_audio_convert_class_init (GstAudioConvertClass *klass);
static void gst_audio_convert_init (GstAudioConvert *audio_convert);
static void gst_audio_convert_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gst_audio_convert_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gst_audio_convert_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_audio_convert_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
/* gstreamer functions */
static void gst_audio_convert_chain (GstPad *pad,
GstBuffer *buf);
static GstPadLinkReturn gst_audio_convert_link (GstPad *pad,
GstCaps *caps);
static void gst_audio_convert_chain (GstPad *pad, GstBuffer *buf);
static GstPadLinkReturn gst_audio_convert_link (GstPad *pad, GstCaps *caps);
static GstElementStateReturn gst_audio_convert_change_state (GstElement *element);
/* actual work */
static gboolean gst_audio_convert_set_caps (GstPad *pad);
static GstBuffer * gst_audio_convert_buffer_to_default_format (GstAudioConvert *this,
GstBuffer *buf);
static GstBuffer * gst_audio_convert_buffer_from_default_format (GstAudioConvert *this,
GstBuffer *buf);
static GstBuffer * gst_audio_convert_channels (GstAudioConvert *this,
GstBuffer *buf);
static GstBuffer * gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *buf);
static GstBuffer * gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *buf);
static GstElementClass *parent_class = NULL;
/*static guint gst_audio_convert_signals[LAST_SIGNAL] = { 0 }; */
static GstBuffer * gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf);
/* AudioConvert signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_AGGRESSIVE,
ARG_MIN_RATE,
ARG_MAX_RATE,
ARG_RATE_STEPS
};
static GstElementClass *parent_class = NULL;
/*static guint gst_audio_convert_signals[LAST_SIGNAL] = { 0 }; */
/*** GSTREAMER PROTOTYPES *****************************************************/
GST_PAD_TEMPLATE_FACTORY (audio_convert_src_template_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"audio_convert_src",
gst_caps_append (
gst_caps_new (
"audio_convert_src_int",
"audio/x-raw-int",
"endianness", GST_PROPS_LIST (
GST_PROPS_INT (G_LITTLE_ENDIAN),
GST_PROPS_INT (G_BIG_ENDIAN)
),
"signed", GST_PROPS_LIST (
GST_PROPS_BOOLEAN (FALSE),
GST_PROPS_BOOLEAN (TRUE)
),
"depth", GST_PROPS_INT_RANGE (1, 32),
"width", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16),
GST_PROPS_INT (24),
GST_PROPS_INT (32)
),
"rate", GST_PROPS_INT_RANGE (8000, 192000),
"channels", GST_PROPS_INT_RANGE (1, 2)
GST_AUDIO_INT_PAD_TEMPLATE_PROPS),
gst_caps_new (
"audio_convert_src_float",
"audio/x-raw-float",
GST_AUDIO_FLOAT_PAD_TEMPLATE_PROPS)
)
)
GST_PAD_TEMPLATE_FACTORY (audio_convert_sink_template_factory,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"audio_convert_sink",
gst_caps_append (
gst_caps_new (
"audio_convert_sink_int",
"audio/x-raw-int",
"endianness", GST_PROPS_LIST (
GST_PROPS_INT (G_LITTLE_ENDIAN),
GST_PROPS_INT (G_BIG_ENDIAN)
),
"signed", GST_PROPS_LIST (
GST_PROPS_BOOLEAN (FALSE),
GST_PROPS_BOOLEAN (TRUE)
),
"depth", GST_PROPS_INT_RANGE (1, 32),
"width", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16),
GST_PROPS_INT (24),
GST_PROPS_INT (32)
),
"rate", GST_PROPS_INT_RANGE (8000, 192000),
"channels", GST_PROPS_INT_RANGE (1, 2)
GST_AUDIO_INT_PAD_TEMPLATE_PROPS),
gst_caps_new (
"audio_convert_sink_float",
"audio/x-raw-float",
GST_AUDIO_FLOAT_PAD_TEMPLATE_PROPS)
)
)
/*** TYPE FUNCTIONS ***********************************************************/
GType
@ -192,7 +192,9 @@ gst_audio_convert_get_type(void) {
0,
(GInstanceInitFunc)gst_audio_convert_init,
};
audio_convert_type = g_type_register_static(GST_TYPE_ELEMENT, "GstAudioConvert", &audio_convert_info, 0);
audio_convert_type = g_type_register_static(GST_TYPE_ELEMENT,
"GstAudioConvert",
&audio_convert_info, 0);
}
return audio_convert_type;
}
@ -208,15 +210,32 @@ gst_audio_convert_class_init (GstAudioConvertClass *klass)
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_AGGRESSIVE,
g_param_spec_boolean("aggressive","aggressive mode","if true, tries any possible format before giving up",
FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
gobject_class->set_property = gst_audio_convert_set_property;
gobject_class->get_property = gst_audio_convert_get_property;
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_AGGRESSIVE,
g_param_spec_boolean("aggressive", "aggressive mode",
"if true, tries any possible format before giving up",
FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MIN_RATE,
g_param_spec_uint("min-rate", "minimum rate allowed",
"defines the lower bound for the audio rate",
0, G_MAXUINT, 8000, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MAX_RATE,
g_param_spec_uint("max-rate", "maximum rate allowed",
"defines the upper bound for the audio rate",
0, G_MAXUINT, 192000, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_RATE_STEPS,
g_param_spec_uint("rate-steps", "rate search steps",
"the number of steps used for searching between min and max rates",
0, G_MAXUINT, 32, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
gstelement_class->change_state = gst_audio_convert_change_state;
}
static void
gst_audio_convert_init (GstAudioConvert *this)
{
@ -225,6 +244,7 @@ gst_audio_convert_init (GstAudioConvert *this)
audio_convert_sink_template_factory), "sink");
gst_pad_set_link_function (this->sink, gst_audio_convert_link);
gst_element_add_pad (GST_ELEMENT(this), this->sink);
/* srcpad */
this->src = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET (
audio_convert_src_template_factory), "src");
@ -232,9 +252,10 @@ gst_audio_convert_init (GstAudioConvert *this)
gst_element_add_pad (GST_ELEMENT(this), this->src);
gst_pad_set_chain_function(this->sink, gst_audio_convert_chain);
gst_pad_set_chain_function(this->sink, gst_audio_convert_chain);
/* clear important variables */
this->caps_set[0] = this->caps_set[1] = FALSE;
this->convert_internal = NULL;
}
static void
gst_audio_convert_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
@ -249,6 +270,15 @@ gst_audio_convert_set_property (GObject *object, guint prop_id, const GValue *va
case ARG_AGGRESSIVE:
audio_convert->aggressive = g_value_get_boolean (value);
break;
case ARG_MIN_RATE:
audio_convert->min_rate = g_value_get_uint (value);
break;
case ARG_MAX_RATE:
audio_convert->max_rate = g_value_get_uint (value);
break;
case ARG_RATE_STEPS:
audio_convert->rate_steps = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -268,6 +298,15 @@ gst_audio_convert_get_property (GObject *object, guint prop_id, GValue *value, G
case ARG_AGGRESSIVE:
g_value_set_boolean (value, audio_convert->aggressive);
break;
case ARG_MIN_RATE:
g_value_set_uint (value, audio_convert->min_rate);
break;
case ARG_MAX_RATE:
g_value_set_uint (value, audio_convert->max_rate);
break;
case ARG_RATE_STEPS:
g_value_set_uint (value, audio_convert->rate_steps);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -295,12 +334,15 @@ gst_audio_convert_chain (GstPad *pad, GstBuffer *buf)
if (!this->caps_set[1]) {
if (!gst_audio_convert_set_caps (this->src)) {
gst_element_error (GST_ELEMENT (this), "AudioConvert: could not set caps on pad %s",
gst_element_error (GST_ELEMENT (this),
"AudioConvert: could not set caps on pad %s",
GST_PAD_NAME(this->src));
return;
}
}
g_assert(this->caps_set[0] && this->caps_set[1]);
/**
* Theory of operation:
* - convert the format (endianness, signedness, width, depth) to
@ -317,6 +359,7 @@ gst_audio_convert_chain (GstPad *pad, GstBuffer *buf)
gst_pad_push (this->src, buf);
}
static GstPadLinkReturn
gst_audio_convert_link (GstPad *pad, GstCaps *caps)
{
@ -330,25 +373,19 @@ gst_audio_convert_link (GstPad *pad, GstCaps *caps)
this = GST_AUDIO_CONVERT(GST_OBJECT_PARENT (pad));
/* could we do better? */
if (!GST_CAPS_IS_FIXED (caps))
return GST_PAD_LINK_DELAYED;
if (!GST_CAPS_IS_FIXED (caps)) return GST_PAD_LINK_DELAYED;
if (pad == this->sink) {
nr = 0;
} else if (pad == this->src) {
nr = 1;
} else {
g_assert_not_reached ();
}
nr = (pad == this->sink) ? 0 : (pad == this->src) ? 1 : -1;
g_assert (nr > -1);
if (!gst_caps_get (caps, "rate", &rate,
if (! gst_caps_get (caps,
"channels", &channels,
"signed", &sign,
"depth", &depth,
"width", &width,
NULL
))
"rate", &rate, NULL))
return GST_PAD_LINK_DELAYED;
if (!gst_caps_get_int (caps, "endianness", &endianness)) {
if (width == 1) {
endianness = G_BYTE_ORDER;
@ -356,11 +393,11 @@ gst_audio_convert_link (GstPad *pad, GstCaps *caps)
return GST_PAD_LINK_DELAYED;
}
}
/* we cannot yet convert this, so check */
if (this->caps_set[1 - nr]) {
if (rate != this->rate[1 - nr])
/* we can't convert rate changes yet */
if ((this->caps_set[1 - nr]) &&
(rate != this->rate[1 - nr]))
return GST_PAD_LINK_REFUSED;
}
this->caps_set[nr] = TRUE;
this->rate[nr] = rate;
this->channels[nr] = channels;
@ -371,6 +408,7 @@ gst_audio_convert_link (GstPad *pad, GstCaps *caps)
return GST_PAD_LINK_OK;
}
static GstElementStateReturn
gst_audio_convert_change_state (GstElement *element)
{
@ -379,6 +417,7 @@ gst_audio_convert_change_state (GstElement *element)
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_PAUSED_TO_READY:
this->caps_set[0] = this->caps_set[1] = FALSE;
this->convert_internal = NULL;
break;
default:
break;
@ -430,15 +469,14 @@ gst_audio_convert_set_caps (GstPad *pad)
gboolean sign;
this = GST_AUDIO_CONVERT (GST_PAD_PARENT (pad));
nr = this->src == pad ? 1 : this->sink == pad ? 0 : -1;
nr = (this->src == pad) ? 1 : (this->sink == pad) ? 0 : -1;
g_assert (nr > -1);
/* try 1:1 first */
caps = make_caps (this->endian[1 - nr], this->sign[1 - nr], this->depth[1 - nr],
this->width[1 - nr], this->rate[1 - nr], this->channels[1 - nr]);
ret = gst_pad_try_set_caps (pad, caps);
if (ret == GST_PAD_LINK_DONE || ret == GST_PAD_LINK_OK)
goto success;
if (ret == GST_PAD_LINK_DONE || ret == GST_PAD_LINK_OK) goto success;
/* now do some iterating, this is gonna be fun */
/* stereo is most important */
@ -448,8 +486,7 @@ gst_audio_convert_set_caps (GstPad *pad)
/* endianness comes second */
endianness = 0;
do {
if (endianness == G_BIG_ENDIAN)
break;
if (endianness == G_BIG_ENDIAN) break;
endianness = endianness == 0 ? G_LITTLE_ENDIAN : G_BIG_ENDIAN;
/* signedness */
@ -457,41 +494,32 @@ gst_audio_convert_set_caps (GstPad *pad)
do {
sign = !sign;
/* depth */
/* width */
for (width = 4; width >= 1; width--) {
/* width */
/* depth */
for (depth = width * 8; depth >= 1; depth -= this->aggressive ? 1 : 8) {
/* rate - not supported yet*/
caps = make_caps (endianness, sign, depth,
width, this->rate[1 - nr], channels);
caps = make_caps (endianness, sign, depth, width, this->rate[1 - nr], channels);
ret = gst_pad_try_set_caps (pad, caps);
if (ret == GST_PAD_LINK_DONE || ret == GST_PAD_LINK_OK) {
if (ret == GST_PAD_LINK_DONE || ret == GST_PAD_LINK_OK)
goto success;
}
}
}
} while (sign != TRUE);
} while TRUE;
channels--;
}
goto fail;
fail:
return FALSE;
success:
success:
g_assert (gst_audio_convert_link (pad, caps) == GST_PAD_LINK_OK);
return TRUE;
}
/* return a writable buffer of size which ideally is the same as before
- You must unref the new buffer
- The size of the old buffer is undefined after this operation */
@ -513,8 +541,10 @@ gst_audio_convert_get_buffer (GstBuffer *buf, guint size)
return ret;
}
}
static inline guint8 GUINT8_IDENTITY (guint8 x) { return x; }
static inline guint8 GINT8_IDENTITY (gint8 x) { return x; }
#define CONVERT_TO(to, from, type, sign, endianness, LE_FUNC, BE_FUNC) G_STMT_START{\
type value; \
memcpy (&value, from, sizeof (type)); \
@ -526,6 +556,7 @@ static inline guint8 GINT8_IDENTITY (gint8 x) { return x; }
to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \
} \
}G_STMT_END;
static GstBuffer*
gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *buf)
{
@ -561,38 +592,6 @@ gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *bu
CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT16_FROM_LE, GUINT16_FROM_BE);
}
break;
case 3:
if (this->sign[0]) {
gint32 value;
if (this->endian[0] == G_BIG_ENDIAN) {
gpointer p = &value;
p++;
memcpy (p, src, 3);
value = GINT32_FROM_BE (value);
} else if (this->endian[0] == G_LITTLE_ENDIAN) {
memcpy (&value, src, 3);
value = GINT32_FROM_LE (value);
} else {
g_assert_not_reached();
}
cur = value;
} else {
guint32 value;
if (this->endian[0] == G_BIG_ENDIAN) {
gpointer p = &value;
p++;
memcpy (p, src, 3);
value = GUINT32_FROM_BE (value);
} else if (this->endian[0] == G_LITTLE_ENDIAN) {
memcpy (&value, src, 3);
value = GUINT32_FROM_LE (value);
} else {
g_assert_not_reached();
}
cur = (gint64) value - (1 << 23);
}
src -= 3;
break;
case 4:
if (this->sign[0]) {
CONVERT_TO (cur, src, gint32, this->sign[0], this->endian[0], GINT32_FROM_LE, GINT32_FROM_BE);
@ -612,6 +611,7 @@ gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *bu
gst_buffer_unref (buf);
return ret;
}
#define POPULATE(format, be_func, le_func) G_STMT_START{ \
format val; \
format* p = (format *) dest; \
@ -631,6 +631,7 @@ gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *bu
p ++; \
dest = (guint8 *) p; \
}G_STMT_END
static GstBuffer *
gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *buf)
{
@ -668,45 +669,6 @@ gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *
POPULATE (guint16, GUINT16_TO_BE, GUINT16_TO_LE);
}
break;
case 3:
if (this->sign[1]) {
gpointer p;
gint32 val = (gint32) int_value;
switch (this->endian[1]) {
case G_LITTLE_ENDIAN:
val = GINT32_TO_LE (val);
break;
case G_BIG_ENDIAN:
val = GINT32_TO_BE (val);
break;
default:
g_assert_not_reached ();
};
p = &val;
if (this->endian[1] == G_BIG_ENDIAN)
p++;
memcpy (dest, p, 3);
dest += 3;
} else {
gpointer p;
guint32 val = (guint32) int_value;
switch (this->endian[1]) {
case G_LITTLE_ENDIAN:
val = GUINT32_TO_LE (val);
break;
case G_BIG_ENDIAN:
val = GUINT32_TO_BE (val);
break;
default:
g_assert_not_reached ();
};
p = &val;
if (this->endian[1] == G_BIG_ENDIAN)
p++;
memcpy (dest, p, 3);
dest += 3;
}
break;
case 4:
if (this->sign[1]) {
POPULATE (gint32, GINT32_TO_BE, GINT32_TO_LE);
@ -722,6 +684,7 @@ gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *
gst_buffer_unref(buf);
return ret;
}
static GstBuffer *
gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf)
{