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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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621
gst/audioconvert/gstaudioconvert.c
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@ -19,15 +19,14 @@
* Boston, MA 02111-1307, USA. * Boston, MA 02111-1307, USA.
*/ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <string.h>
#ifdef HAVE_CONFIG_H #ifdef HAVE_CONFIG_H
# include <config.h> # include <config.h>
#endif #endif
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <string.h>
#if 0 #if 0
static void static void
print_caps (GstCaps *caps) print_caps (GstCaps *caps)
@ -46,31 +45,59 @@ print_caps (GstCaps *caps)
/*** DEFINITIONS **************************************************************/ /*** DEFINITIONS **************************************************************/
#define GST_TYPE_AUDIO_CONVERT (gst_audio_convert_get_type()) #define GST_TYPE_AUDIO_CONVERT (gst_audio_convert_get_type())
#define GST_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_CONVERT,GstAudioConvert)) #define GST_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_CONVERT,GstAudioConvert))
#define GST_AUDIO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_CONVERT,GstAudioConvert)) #define GST_AUDIO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_CONVERT,GstAudioConvert))
#define GST_IS_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_CONVERT)) #define GST_IS_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_CONVERT))
#define GST_IS_AUDIO_CONVERT_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_CONVERT)) #define GST_IS_AUDIO_CONVERT_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_CONVERT))
typedef struct _GstAudioConvert GstAudioConvert; typedef struct _GstAudioConvert GstAudioConvert;
typedef struct _GstAudioConvertCaps GstAudioConvertCaps;
typedef struct _GstAudioConvertClass GstAudioConvertClass; 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 { struct _GstAudioConvert {
GstElement element; GstElement element;
/* pads */ /* pads */
GstPad * sink; GstPad * sink;
GstPad * src; GstPad * src;
/* properties */ /* properties */
gboolean aggressive; gboolean aggressive;
guint min_rate, max_rate, rate_steps;
/* caps: 0 = sink, 1 = src, so always convert from 0 to 1 */ /* caps: 0 = sink, 1 = src, so always convert from 0 to 1 */
gboolean caps_set[2]; gboolean caps_set[2];
gint law[2]; GstAudioConvertCaps caps[2];
gint endian[2];
gint sign[2]; gint law[2];
gint depth[2]; /* in BITS */ gint endian[2];
gint width[2]; /* in BYTES */ gint sign[2];
gint rate[2]; gint depth[2]; /* in BITS */
gint channels[2]; gint width[2]; /* in BYTES */
gint rate[2];
gint channels[2];
/* conversion functions */
GstBuffer * (* convert_internal) (GstAudioConvert *this, GstBuffer *buf);
}; };
struct _GstAudioConvertClass { struct _GstAudioConvertClass {
@ -78,103 +105,76 @@ struct _GstAudioConvertClass {
}; };
/* type functions */ /* type functions */
static GType gst_audio_convert_get_type (void); static GType gst_audio_convert_get_type (void);
static void gst_audio_convert_class_init (GstAudioConvertClass *klass); static void gst_audio_convert_class_init (GstAudioConvertClass *klass);
static void gst_audio_convert_init (GstAudioConvert *audio_convert); static void gst_audio_convert_init (GstAudioConvert *audio_convert);
static void gst_audio_convert_set_property (GObject *object, static void gst_audio_convert_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
guint prop_id, static void gst_audio_convert_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
const GValue *value,
GParamSpec *pspec); /* gstreamer functions */
static void gst_audio_convert_get_property (GObject *object, static void gst_audio_convert_chain (GstPad *pad, GstBuffer *buf);
guint prop_id, static GstPadLinkReturn gst_audio_convert_link (GstPad *pad, GstCaps *caps);
GValue *value, static GstElementStateReturn gst_audio_convert_change_state (GstElement *element);
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 GstElementStateReturn gst_audio_convert_change_state (GstElement *element);
/* actual work */ /* actual work */
static gboolean gst_audio_convert_set_caps (GstPad *pad); 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 GstBuffer * gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf);
static GstElementClass *parent_class = NULL;
/*static guint gst_audio_convert_signals[LAST_SIGNAL] = { 0 }; */
/* AudioConvert signals and args */ /* AudioConvert signals and args */
enum { enum {
/* FILL ME */ /* FILL ME */
LAST_SIGNAL LAST_SIGNAL
}; };
enum { enum {
ARG_0, ARG_0,
ARG_AGGRESSIVE, 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 *****************************************************/ /*** GSTREAMER PROTOTYPES *****************************************************/
GST_PAD_TEMPLATE_FACTORY (audio_convert_src_template_factory, GST_PAD_TEMPLATE_FACTORY (audio_convert_src_template_factory,
"src", "src",
GST_PAD_SRC, GST_PAD_SRC,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_CAPS_NEW ( gst_caps_append (
"audio_convert_src", gst_caps_new (
"audio/x-raw-int", "audio_convert_src_int",
"endianness", GST_PROPS_LIST ( "audio/x-raw-int",
GST_PROPS_INT (G_LITTLE_ENDIAN), GST_AUDIO_INT_PAD_TEMPLATE_PROPS),
GST_PROPS_INT (G_BIG_ENDIAN) gst_caps_new (
), "audio_convert_src_float",
"signed", GST_PROPS_LIST ( "audio/x-raw-float",
GST_PROPS_BOOLEAN (FALSE), GST_AUDIO_FLOAT_PAD_TEMPLATE_PROPS)
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_PAD_TEMPLATE_FACTORY (audio_convert_sink_template_factory, GST_PAD_TEMPLATE_FACTORY (audio_convert_sink_template_factory,
"sink", "sink",
GST_PAD_SINK, GST_PAD_SINK,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_CAPS_NEW ( gst_caps_append (
"audio_convert_sink", gst_caps_new (
"audio/x-raw-int", "audio_convert_sink_int",
"endianness", GST_PROPS_LIST ( "audio/x-raw-int",
GST_PROPS_INT (G_LITTLE_ENDIAN), GST_AUDIO_INT_PAD_TEMPLATE_PROPS),
GST_PROPS_INT (G_BIG_ENDIAN) gst_caps_new (
), "audio_convert_sink_float",
"signed", GST_PROPS_LIST ( "audio/x-raw-float",
GST_PROPS_BOOLEAN (FALSE), GST_AUDIO_FLOAT_PAD_TEMPLATE_PROPS)
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)
) )
) )
/*** TYPE FUNCTIONS ***********************************************************/ /*** TYPE FUNCTIONS ***********************************************************/
GType GType
@ -192,7 +192,9 @@ gst_audio_convert_get_type(void) {
0, 0,
(GInstanceInitFunc)gst_audio_convert_init, (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; return audio_convert_type;
} }
@ -208,15 +210,32 @@ gst_audio_convert_class_init (GstAudioConvertClass *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_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->set_property = gst_audio_convert_set_property;
gobject_class->get_property = gst_audio_convert_get_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; gstelement_class->change_state = gst_audio_convert_change_state;
} }
static void static void
gst_audio_convert_init (GstAudioConvert *this) gst_audio_convert_init (GstAudioConvert *this)
{ {
@ -225,6 +244,7 @@ gst_audio_convert_init (GstAudioConvert *this)
audio_convert_sink_template_factory), "sink"); audio_convert_sink_template_factory), "sink");
gst_pad_set_link_function (this->sink, gst_audio_convert_link); gst_pad_set_link_function (this->sink, gst_audio_convert_link);
gst_element_add_pad (GST_ELEMENT(this), this->sink); gst_element_add_pad (GST_ELEMENT(this), this->sink);
/* srcpad */ /* srcpad */
this->src = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET ( this->src = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET (
audio_convert_src_template_factory), "src"); 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_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);
gst_pad_set_chain_function(this->sink, gst_audio_convert_chain);
/* clear important variables */ /* clear important variables */
this->caps_set[0] = this->caps_set[1] = FALSE; this->caps_set[0] = this->caps_set[1] = FALSE;
this->convert_internal = NULL;
} }
static void static void
gst_audio_convert_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) 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: case ARG_AGGRESSIVE:
audio_convert->aggressive = g_value_get_boolean (value); audio_convert->aggressive = g_value_get_boolean (value);
break; 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: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break; break;
@ -268,6 +298,15 @@ gst_audio_convert_get_property (GObject *object, guint prop_id, GValue *value, G
case ARG_AGGRESSIVE: case ARG_AGGRESSIVE:
g_value_set_boolean (value, audio_convert->aggressive); g_value_set_boolean (value, audio_convert->aggressive);
break; 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: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break; break;
@ -295,15 +334,18 @@ gst_audio_convert_chain (GstPad *pad, GstBuffer *buf)
if (!this->caps_set[1]) { if (!this->caps_set[1]) {
if (!gst_audio_convert_set_caps (this->src)) { 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)); GST_PAD_NAME(this->src));
return; return;
} }
} }
g_assert(this->caps_set[0] && this->caps_set[1]);
/** /**
* Theory of operation: * Theory of operation:
* - convert the format (endianness, signedness, width, depth) to * - convert the format (endianness, signedness, width, depth) to
* (G_BYTE_ORDER, TRUE, 32, 32) * (G_BYTE_ORDER, TRUE, 32, 32)
* - convert rate and channels * - convert rate and channels
* - convert back to output format * - convert back to output format
@ -317,6 +359,7 @@ gst_audio_convert_chain (GstPad *pad, GstBuffer *buf)
gst_pad_push (this->src, buf); gst_pad_push (this->src, buf);
} }
static GstPadLinkReturn static GstPadLinkReturn
gst_audio_convert_link (GstPad *pad, GstCaps *caps) gst_audio_convert_link (GstPad *pad, GstCaps *caps)
{ {
@ -328,39 +371,33 @@ gst_audio_convert_link (GstPad *pad, GstCaps *caps)
g_return_val_if_fail(GST_IS_PAD(pad), GST_PAD_LINK_REFUSED); g_return_val_if_fail(GST_IS_PAD(pad), GST_PAD_LINK_REFUSED);
g_return_val_if_fail(GST_IS_AUDIO_CONVERT(GST_OBJECT_PARENT (pad)), GST_PAD_LINK_REFUSED); g_return_val_if_fail(GST_IS_AUDIO_CONVERT(GST_OBJECT_PARENT (pad)), GST_PAD_LINK_REFUSED);
this = GST_AUDIO_CONVERT(GST_OBJECT_PARENT (pad)); this = GST_AUDIO_CONVERT(GST_OBJECT_PARENT (pad));
/* could we do better? */ /* could we do better? */
if (!GST_CAPS_IS_FIXED (caps)) if (!GST_CAPS_IS_FIXED (caps)) return GST_PAD_LINK_DELAYED;
nr = (pad == this->sink) ? 0 : (pad == this->src) ? 1 : -1;
g_assert (nr > -1);
if (! gst_caps_get (caps,
"channels", &channels,
"signed", &sign,
"depth", &depth,
"width", &width,
"rate", &rate, NULL))
return GST_PAD_LINK_DELAYED; return GST_PAD_LINK_DELAYED;
if (pad == this->sink) {
nr = 0;
} else if (pad == this->src) {
nr = 1;
} else {
g_assert_not_reached ();
}
if (!gst_caps_get (caps, "rate", &rate,
"channels", &channels,
"signed", &sign,
"depth", &depth,
"width", &width,
NULL
))
return GST_PAD_LINK_DELAYED;
if (!gst_caps_get_int (caps, "endianness", &endianness)) { if (!gst_caps_get_int (caps, "endianness", &endianness)) {
if (width == 1) { if (width == 1) {
endianness = G_BYTE_ORDER; endianness = G_BYTE_ORDER;
} else { } else {
return GST_PAD_LINK_DELAYED; return GST_PAD_LINK_DELAYED;
} }
} }
/* we cannot yet convert this, so check */ /* we can't convert rate changes yet */
if (this->caps_set[1 - nr]) { if ((this->caps_set[1 - nr]) &&
if (rate != this->rate[1 - nr]) (rate != this->rate[1 - nr]))
return GST_PAD_LINK_REFUSED; return GST_PAD_LINK_REFUSED;
}
this->caps_set[nr] = TRUE; this->caps_set[nr] = TRUE;
this->rate[nr] = rate; this->rate[nr] = rate;
this->channels[nr] = channels; this->channels[nr] = channels;
@ -371,6 +408,7 @@ gst_audio_convert_link (GstPad *pad, GstCaps *caps)
return GST_PAD_LINK_OK; return GST_PAD_LINK_OK;
} }
static GstElementStateReturn static GstElementStateReturn
gst_audio_convert_change_state (GstElement *element) gst_audio_convert_change_state (GstElement *element)
{ {
@ -379,6 +417,7 @@ gst_audio_convert_change_state (GstElement *element)
switch (GST_STATE_TRANSITION (element)) { switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_PAUSED_TO_READY: case GST_STATE_PAUSED_TO_READY:
this->caps_set[0] = this->caps_set[1] = FALSE; this->caps_set[0] = this->caps_set[1] = FALSE;
this->convert_internal = NULL;
break; break;
default: default:
break; break;
@ -400,23 +439,23 @@ make_caps (gint endianness, gboolean sign, gint depth, gint width, gint rate, gi
return GST_CAPS_NEW ( return GST_CAPS_NEW (
"audio_convert_caps", "audio_convert_caps",
"audio/x-raw-int", "audio/x-raw-int",
"signed", GST_PROPS_BOOLEAN (sign), "signed", GST_PROPS_BOOLEAN (sign),
"depth", GST_PROPS_INT (depth), "depth", GST_PROPS_INT (depth),
"width", GST_PROPS_INT (width * 8), "width", GST_PROPS_INT (width * 8),
"rate", GST_PROPS_INT (rate), "rate", GST_PROPS_INT (rate),
"channels", GST_PROPS_INT (channels) "channels", GST_PROPS_INT (channels)
); );
} else { } else {
return GST_CAPS_NEW ( return GST_CAPS_NEW (
"audio_convert_caps", "audio_convert_caps",
"audio/x-raw-int", "audio/x-raw-int",
"endianness", GST_PROPS_INT (endianness), "endianness", GST_PROPS_INT (endianness),
"signed", GST_PROPS_BOOLEAN (sign), "signed", GST_PROPS_BOOLEAN (sign),
"depth", GST_PROPS_INT (depth), "depth", GST_PROPS_INT (depth),
"width", GST_PROPS_INT (width * 8), "width", GST_PROPS_INT (width * 8),
"rate", GST_PROPS_INT (rate), "rate", GST_PROPS_INT (rate),
"channels", GST_PROPS_INT (channels) "channels", GST_PROPS_INT (channels)
); );
} }
} }
static gboolean static gboolean
@ -430,69 +469,58 @@ gst_audio_convert_set_caps (GstPad *pad)
gboolean sign; gboolean sign;
this = GST_AUDIO_CONVERT (GST_PAD_PARENT (pad)); 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); g_assert (nr > -1);
/* try 1:1 first */ /* try 1:1 first */
caps = make_caps (this->endian[1 - nr], this->sign[1 - nr], this->depth[1 - nr], 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]); this->width[1 - nr], this->rate[1 - nr], this->channels[1 - nr]);
ret = gst_pad_try_set_caps (pad, caps); 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;
goto success;
/* now do some iterating, this is gonna be fun */ /* now do some iterating, this is gonna be fun */
/* stereo is most important */ /* stereo is most important */
channels = 2; channels = 2;
while (channels > 0) { while (channels > 0) {
/* endianness comes second */ /* endianness comes second */
endianness = 0; endianness = 0;
do { do {
if (endianness == G_BIG_ENDIAN) if (endianness == G_BIG_ENDIAN) break;
break;
endianness = endianness == 0 ? G_LITTLE_ENDIAN : G_BIG_ENDIAN; endianness = endianness == 0 ? G_LITTLE_ENDIAN : G_BIG_ENDIAN;
/* signedness */ /* signedness */
sign = TRUE; sign = TRUE;
do { do {
sign = !sign; sign = !sign;
/* depth */ /* width */
for (width = 4; width >= 1; width--) { for (width = 4; width >= 1; width--) {
/* width */
for (depth = width * 8; depth >= 1; depth -= this->aggressive ? 1 : 8) {
/* rate - not supported yet*/ /* depth */
for (depth = width * 8; depth >= 1; depth -= this->aggressive ? 1 : 8) {
caps = make_caps (endianness, sign, depth, /* rate - not supported yet*/
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) {
goto success;
}
}
}
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)
goto success;
}
}
} while (sign != TRUE); } while (sign != TRUE);
} while TRUE; } while TRUE;
channels--; channels--;
} }
goto fail;
fail:
return FALSE; return FALSE;
success: success:
g_assert (gst_audio_convert_link (pad, caps) == GST_PAD_LINK_OK); g_assert (gst_audio_convert_link (pad, caps) == GST_PAD_LINK_OK);
return TRUE; return TRUE;
} }
/* return a writable buffer of size which ideally is the same as before
/* return a writable buffer of size which ideally is the same as before
- You must unref the new buffer - You must unref the new buffer
- The size of the old buffer is undefined after this operation */ - The size of the old buffer is undefined after this operation */
static GstBuffer* static GstBuffer*
@ -513,19 +541,22 @@ gst_audio_convert_get_buffer (GstBuffer *buf, guint size)
return ret; return ret;
} }
} }
static inline guint8 GUINT8_IDENTITY (guint8 x) { return x; } static inline guint8 GUINT8_IDENTITY (guint8 x) { return x; }
static inline guint8 GINT8_IDENTITY (gint8 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{\ #define CONVERT_TO(to, from, type, sign, endianness, LE_FUNC, BE_FUNC) G_STMT_START{\
type value; \ type value; \
memcpy (&value, from, sizeof (type)); \ memcpy (&value, from, sizeof (type)); \
from -= sizeof (type); \ from -= sizeof (type); \
value = (endianness == G_LITTLE_ENDIAN) ? LE_FUNC (value) : BE_FUNC (value); \ value = (endianness == G_LITTLE_ENDIAN) ? LE_FUNC (value) : BE_FUNC (value); \
if (sign) { \ if (sign) { \
to = value; \ to = value; \
} else { \ } else { \
to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \ to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \
} \ } \
}G_STMT_END; }G_STMT_END;
static GstBuffer* static GstBuffer*
gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *buf) gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *buf)
{ {
@ -536,72 +567,40 @@ gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *bu
gint32 *dest; gint32 *dest;
guint8 *src; guint8 *src;
if (this->width[0] == 4 && this->depth[0] == 32 && if (this->width[0] == 4 && this->depth[0] == 32 &&
this->endian[0] == G_BYTE_ORDER && this->sign[0] == TRUE) this->endian[0] == G_BYTE_ORDER && this->sign[0] == TRUE)
return buf; return buf;
ret = gst_audio_convert_get_buffer (buf, buf->size * 4 / this->width[0]); ret = gst_audio_convert_get_buffer (buf, buf->size * 4 / this->width[0]);
count = ret->size / 4; count = ret->size / 4;
src = buf->data + (count - 1) * this->width[0]; src = buf->data + (count - 1) * this->width[0];
dest = (gint32 *) ret->data; dest = (gint32 *) ret->data;
for (i = count - 1; i >= 0; i--) { for (i = count - 1; i >= 0; i--) {
switch (this->width[0]) { switch (this->width[0]) {
case 1: case 1:
if (this->sign[0]) { if (this->sign[0]) {
CONVERT_TO (cur, src, gint8, this->sign[0], this->endian[0], GINT8_IDENTITY, GINT8_IDENTITY); CONVERT_TO (cur, src, gint8, this->sign[0], this->endian[0], GINT8_IDENTITY, GINT8_IDENTITY);
} else { } else {
CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT8_IDENTITY, GUINT8_IDENTITY); CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT8_IDENTITY, GUINT8_IDENTITY);
} }
break; break;
case 2: case 2:
if (this->sign[0]) { if (this->sign[0]) {
CONVERT_TO (cur, src, gint16, this->sign[0], this->endian[0], GINT16_FROM_LE, GINT16_FROM_BE); CONVERT_TO (cur, src, gint16, this->sign[0], this->endian[0], GINT16_FROM_LE, GINT16_FROM_BE);
} else { } else {
CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT16_FROM_LE, GUINT16_FROM_BE); CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT16_FROM_LE, GUINT16_FROM_BE);
} }
break; break;
case 3: case 4:
if (this->sign[0]) { if (this->sign[0]) {
gint32 value; CONVERT_TO (cur, src, gint32, this->sign[0], this->endian[0], GINT32_FROM_LE, GINT32_FROM_BE);
if (this->endian[0] == G_BIG_ENDIAN) { } else {
gpointer p = &value; CONVERT_TO (cur, src, guint32, this->sign[0], this->endian[0], GUINT32_FROM_LE, GUINT32_FROM_BE);
p++; }
memcpy (p, src, 3); break;
value = GINT32_FROM_BE (value); default:
} else if (this->endian[0] == G_LITTLE_ENDIAN) { g_assert_not_reached ();
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);
} else {
CONVERT_TO (cur, src, guint32, this->sign[0], this->endian[0], GUINT32_FROM_LE, GUINT32_FROM_BE);
}
break;
default:
g_assert_not_reached ();
} }
cur = cur * ((gint64) 1 << (32 - this->depth[0])); cur = cur * ((gint64) 1 << (32 - this->depth[0]));
cur = CLAMP (cur, -((gint64)1 << 32), (gint64) 0x7FFFFFFF); cur = CLAMP (cur, -((gint64)1 << 32), (gint64) 0x7FFFFFFF);
@ -612,25 +611,27 @@ gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *bu
gst_buffer_unref (buf); gst_buffer_unref (buf);
return ret; return ret;
} }
#define POPULATE(format, be_func, le_func) G_STMT_START{ \
format val; \ #define POPULATE(format, be_func, le_func) G_STMT_START{ \
format* p = (format *) dest; \ format val; \
int_value >>= (32 - this->depth[1]); \ format* p = (format *) dest; \
val = (format) int_value; \ int_value >>= (32 - this->depth[1]); \
switch (this->endian[1]) { \ val = (format) int_value; \
case G_LITTLE_ENDIAN: \ switch (this->endian[1]) { \
val = le_func (val); \ case G_LITTLE_ENDIAN: \
break; \ val = le_func (val); \
case G_BIG_ENDIAN: \ break; \
val = be_func (val); \ case G_BIG_ENDIAN: \
break; \ val = be_func (val); \
default: \ break; \
g_assert_not_reached (); \ default: \
}; \ g_assert_not_reached (); \
*p = val; \ }; \
p ++; \ *p = val; \
dest = (guint8 *) p; \ p ++; \
dest = (guint8 *) p; \
}G_STMT_END }G_STMT_END
static GstBuffer * static GstBuffer *
gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *buf) gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *buf)
{ {
@ -639,89 +640,51 @@ gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *
guint count, i; guint count, i;
gint32 *src; gint32 *src;
if (this->width[1] == 4 && this->depth[1] == 32 && if (this->width[1] == 4 && this->depth[1] == 32 &&
this->endian[1] == G_BYTE_ORDER && this->sign[1] == TRUE) this->endian[1] == G_BYTE_ORDER && this->sign[1] == TRUE)
return buf; return buf;
ret = gst_audio_convert_get_buffer (buf, buf->size * this->width[1] / 4); ret = gst_audio_convert_get_buffer (buf, buf->size * this->width[1] / 4);
dest = ret->data; dest = ret->data;
src = (gint32 *) buf->data; src = (gint32 *) buf->data;
count = ret->size / this->width[1]; count = ret->size / this->width[1];
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
gint32 int_value = *src; gint32 int_value = *src;
src++; src++;
switch (this->width[1]) { switch (this->width[1]) {
case 1: case 1:
if (this->sign[1]) { if (this->sign[1]) {
POPULATE (gint8, GINT8_IDENTITY, GINT8_IDENTITY); POPULATE (gint8, GINT8_IDENTITY, GINT8_IDENTITY);
} else { } else {
POPULATE (guint8, GUINT8_IDENTITY, GUINT8_IDENTITY); POPULATE (guint8, GUINT8_IDENTITY, GUINT8_IDENTITY);
} }
break; break;
case 2: case 2:
if (this->sign[1]) { if (this->sign[1]) {
POPULATE (gint16, GINT16_TO_BE, GINT16_TO_LE); POPULATE (gint16, GINT16_TO_BE, GINT16_TO_LE);
} else { } else {
POPULATE (guint16, GUINT16_TO_BE, GUINT16_TO_LE); POPULATE (guint16, GUINT16_TO_BE, GUINT16_TO_LE);
} }
break; break;
case 3: case 4:
if (this->sign[1]) { if (this->sign[1]) {
gpointer p; POPULATE (gint32, GINT32_TO_BE, GINT32_TO_LE);
gint32 val = (gint32) int_value; } else {
switch (this->endian[1]) { POPULATE (guint32, GUINT32_TO_BE, GUINT32_TO_LE);
case G_LITTLE_ENDIAN: }
val = GINT32_TO_LE (val); break;
break; default:
case G_BIG_ENDIAN: g_assert_not_reached ();
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);
} else {
POPULATE (guint32, GUINT32_TO_BE, GUINT32_TO_LE);
}
break;
default:
g_assert_not_reached ();
} }
} }
gst_buffer_unref(buf); gst_buffer_unref(buf);
return ret; return ret;
} }
static GstBuffer * static GstBuffer *
gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf) gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf)
{ {
@ -736,7 +699,7 @@ gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf)
count = ret->size / 4 / this->channels[1]; count = ret->size / 4 / this->channels[1];
src = (guint32 *) buf->data; src = (guint32 *) buf->data;
dest = (guint32 *) ret->data; dest = (guint32 *) ret->data;
if (this->channels[0] > this->channels[1]) { if (this->channels[0] > this->channels[1]) {
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
*dest = *src >> 1; *dest = *src >> 1;
@ -776,13 +739,13 @@ plugin_init (GModule *module, GstPlugin *plugin)
&audio_convert_details); &audio_convert_details);
g_return_val_if_fail(factory != NULL, FALSE); g_return_val_if_fail(factory != NULL, FALSE);
gst_element_factory_add_pad_template (factory, gst_element_factory_add_pad_template (factory,
GST_PAD_TEMPLATE_GET (audio_convert_src_template_factory)); GST_PAD_TEMPLATE_GET (audio_convert_src_template_factory));
gst_element_factory_add_pad_template (factory, gst_element_factory_add_pad_template (factory,
GST_PAD_TEMPLATE_GET (audio_convert_sink_template_factory)); GST_PAD_TEMPLATE_GET (audio_convert_sink_template_factory));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE; return TRUE;
} }