*/
#ifdef HAVE_CONFIG_H
-#include "config.h"
+# include <config.h>
#endif
+
#include <gst/gst.h>
+#include <gst/audio/audio.h>
#include <string.h>
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
#if 0
static void
/*** DEFINITIONS **************************************************************/
-#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_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_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_CONVERT))
+#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_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_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;
+ GstElement element;
+
/* pads */
- GstPad * sink;
- GstPad * src;
+ GstPad * sink;
+ GstPad * src;
+
/* properties */
- gboolean aggressive;
+ 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];
- gint law[2];
- gint endian[2];
- gint sign[2];
- gint depth[2]; /* in BITS */
- gint width[2]; /* in BYTES */
- gint rate[2];
- gint channels[2];
+ gboolean caps_set[2];
+ GstAudioConvertCaps caps[2];
+
+ gint law[2];
+ gint endian[2];
+ gint sign[2];
+ gint depth[2]; /* in BITS */
+ gint width[2]; /* in BYTES */
+ gint rate[2];
+ gint channels[2];
+
+ /* conversion functions */
+ GstBuffer * (* convert_internal) (GstAudioConvert *this, GstBuffer *buf);
};
struct _GstAudioConvertClass {
};
/* type functions */
-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);
-/* 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 */
-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 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);
+
+/* 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 */
+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 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",
- "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_caps_append (
+ gst_caps_new (
+ "audio_convert_src_int",
+ "audio/x-raw-int",
+ 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",
- "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_caps_append (
+ gst_caps_new (
+ "audio_convert_sink_int",
+ "audio/x-raw-int",
+ 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
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;
}
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+ 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",
+ 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_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)
{
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");
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)
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;
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;
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
+ * - convert the format (endianness, signedness, width, depth) to
* (G_BYTE_ORDER, TRUE, 32, 32)
* - convert rate and channels
* - convert back to output format
gst_pad_push (this->src, buf);
}
+
static GstPadLinkReturn
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_AUDIO_CONVERT(GST_OBJECT_PARENT (pad)), GST_PAD_LINK_REFUSED);
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,
- "channels", &channels,
- "signed", &sign,
- "depth", &depth,
- "width", &width,
- NULL
- ))
+ if (! gst_caps_get (caps,
+ "channels", &channels,
+ "signed", &sign,
+ "depth", &depth,
+ "width", &width,
+ "rate", &rate, NULL))
return GST_PAD_LINK_DELAYED;
+
if (!gst_caps_get_int (caps, "endianness", &endianness)) {
if (width == 1) {
- endianness = G_BYTE_ORDER;
+ endianness = G_BYTE_ORDER;
} else {
return GST_PAD_LINK_DELAYED;
}
}
- /* we cannot yet convert this, so check */
- if (this->caps_set[1 - nr]) {
- if (rate != this->rate[1 - nr])
- return GST_PAD_LINK_REFUSED;
- }
+ /* 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;
return GST_PAD_LINK_OK;
}
+
static GstElementStateReturn
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;
return GST_CAPS_NEW (
"audio_convert_caps",
"audio/x-raw-int",
- "signed", GST_PROPS_BOOLEAN (sign),
- "depth", GST_PROPS_INT (depth),
- "width", GST_PROPS_INT (width * 8),
- "rate", GST_PROPS_INT (rate),
- "channels", GST_PROPS_INT (channels)
- );
+ "signed", GST_PROPS_BOOLEAN (sign),
+ "depth", GST_PROPS_INT (depth),
+ "width", GST_PROPS_INT (width * 8),
+ "rate", GST_PROPS_INT (rate),
+ "channels", GST_PROPS_INT (channels)
+ );
} else {
return GST_CAPS_NEW (
"audio_convert_caps",
"audio/x-raw-int",
- "endianness", GST_PROPS_INT (endianness),
- "signed", GST_PROPS_BOOLEAN (sign),
- "depth", GST_PROPS_INT (depth),
- "width", GST_PROPS_INT (width * 8),
- "rate", GST_PROPS_INT (rate),
- "channels", GST_PROPS_INT (channels)
- );
+ "endianness", GST_PROPS_INT (endianness),
+ "signed", GST_PROPS_BOOLEAN (sign),
+ "depth", GST_PROPS_INT (depth),
+ "width", GST_PROPS_INT (width * 8),
+ "rate", GST_PROPS_INT (rate),
+ "channels", GST_PROPS_INT (channels)
+ );
}
}
static gboolean
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 */
channels = 2;
while (channels > 0) {
-
+
/* 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 */
sign = TRUE;
do {
- sign = !sign;
+ sign = !sign;
- /* depth */
- for (width = 4; width >= 1; width--) {
-
- /* width */
- for (depth = width * 8; depth >= 1; depth -= this->aggressive ? 1 : 8) {
+ /* width */
+ for (width = 4; width >= 1; width--) {
- /* rate - not supported yet*/
+ /* depth */
+ for (depth = width * 8; depth >= 1; depth -= this->aggressive ? 1 : 8) {
- 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;
- }
-
- }
-
- }
+ /* rate - not supported yet*/
+ 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 TRUE;
-
channels--;
}
-
-
- goto fail;
-fail:
+
return FALSE;
-success:
+ success:
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
- The size of the old buffer is undefined after this operation */
static GstBuffer*
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)); \
- from -= sizeof (type); \
- value = (endianness == G_LITTLE_ENDIAN) ? LE_FUNC (value) : BE_FUNC (value); \
- if (sign) { \
- to = value; \
- } else { \
- to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \
- } \
+ type value; \
+ memcpy (&value, from, sizeof (type)); \
+ from -= sizeof (type); \
+ value = (endianness == G_LITTLE_ENDIAN) ? LE_FUNC (value) : BE_FUNC (value); \
+ if (sign) { \
+ to = value; \
+ } else { \
+ to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \
+ } \
}G_STMT_END;
+
static GstBuffer*
gst_audio_convert_buffer_to_default_format (GstAudioConvert *this, GstBuffer *buf)
{
gint32 *dest;
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)
return buf;
-
+
ret = gst_audio_convert_get_buffer (buf, buf->size * 4 / this->width[0]);
-
+
count = ret->size / 4;
src = buf->data + (count - 1) * this->width[0];
dest = (gint32 *) ret->data;
for (i = count - 1; i >= 0; i--) {
switch (this->width[0]) {
- case 1:
- if (this->sign[0]) {
- CONVERT_TO (cur, src, gint8, this->sign[0], this->endian[0], GINT8_IDENTITY, GINT8_IDENTITY);
- } else {
- CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT8_IDENTITY, GUINT8_IDENTITY);
- }
- break;
- case 2:
- if (this->sign[0]) {
- CONVERT_TO (cur, src, gint16, this->sign[0], this->endian[0], GINT16_FROM_LE, GINT16_FROM_BE);
- } else {
- 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);
- } else {
- CONVERT_TO (cur, src, guint32, this->sign[0], this->endian[0], GUINT32_FROM_LE, GUINT32_FROM_BE);
- }
- break;
- default:
- g_assert_not_reached ();
+ case 1:
+ if (this->sign[0]) {
+ CONVERT_TO (cur, src, gint8, this->sign[0], this->endian[0], GINT8_IDENTITY, GINT8_IDENTITY);
+ } else {
+ CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT8_IDENTITY, GUINT8_IDENTITY);
+ }
+ break;
+ case 2:
+ if (this->sign[0]) {
+ CONVERT_TO (cur, src, gint16, this->sign[0], this->endian[0], GINT16_FROM_LE, GINT16_FROM_BE);
+ } else {
+ CONVERT_TO (cur, src, guint16, this->sign[0], this->endian[0], GUINT16_FROM_LE, GUINT16_FROM_BE);
+ }
+ 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 = CLAMP (cur, -((gint64)1 << 32), (gint64) 0x7FFFFFFF);
gst_buffer_unref (buf);
return ret;
}
-#define POPULATE(format, be_func, le_func) G_STMT_START{ \
- format val; \
- format* p = (format *) dest; \
- int_value >>= (32 - this->depth[1]); \
- val = (format) int_value; \
- switch (this->endian[1]) { \
- case G_LITTLE_ENDIAN: \
- val = le_func (val); \
- break; \
- case G_BIG_ENDIAN: \
- val = be_func (val); \
- break; \
- default: \
- g_assert_not_reached (); \
- }; \
- *p = val; \
- p ++; \
- dest = (guint8 *) p; \
+
+#define POPULATE(format, be_func, le_func) G_STMT_START{ \
+ format val; \
+ format* p = (format *) dest; \
+ int_value >>= (32 - this->depth[1]); \
+ val = (format) int_value; \
+ switch (this->endian[1]) { \
+ case G_LITTLE_ENDIAN: \
+ val = le_func (val); \
+ break; \
+ case G_BIG_ENDIAN: \
+ val = be_func (val); \
+ break; \
+ default: \
+ g_assert_not_reached (); \
+ }; \
+ *p = val; \
+ p ++; \
+ dest = (guint8 *) p; \
}G_STMT_END
+
static GstBuffer *
gst_audio_convert_buffer_from_default_format (GstAudioConvert *this, GstBuffer *buf)
{
guint count, i;
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)
return buf;
-
+
ret = gst_audio_convert_get_buffer (buf, buf->size * this->width[1] / 4);
-
+
dest = ret->data;
- src = (gint32 *) buf->data;
-
+ src = (gint32 *) buf->data;
+
count = ret->size / this->width[1];
-
+
for (i = 0; i < count; i++) {
gint32 int_value = *src;
src++;
switch (this->width[1]) {
- case 1:
- if (this->sign[1]) {
- POPULATE (gint8, GINT8_IDENTITY, GINT8_IDENTITY);
- } else {
- POPULATE (guint8, GUINT8_IDENTITY, GUINT8_IDENTITY);
- }
- break;
- case 2:
- if (this->sign[1]) {
- POPULATE (gint16, GINT16_TO_BE, GINT16_TO_LE);
- } else {
- 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);
- } else {
- POPULATE (guint32, GUINT32_TO_BE, GUINT32_TO_LE);
- }
- break;
- default:
- g_assert_not_reached ();
+ case 1:
+ if (this->sign[1]) {
+ POPULATE (gint8, GINT8_IDENTITY, GINT8_IDENTITY);
+ } else {
+ POPULATE (guint8, GUINT8_IDENTITY, GUINT8_IDENTITY);
+ }
+ break;
+ case 2:
+ if (this->sign[1]) {
+ POPULATE (gint16, GINT16_TO_BE, GINT16_TO_LE);
+ } else {
+ POPULATE (guint16, GUINT16_TO_BE, GUINT16_TO_LE);
+ }
+ 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);
return ret;
}
+
static GstBuffer *
gst_audio_convert_channels (GstAudioConvert *this, GstBuffer *buf)
{
count = ret->size / 4 / this->channels[1];
src = (guint32 *) buf->data;
dest = (guint32 *) ret->data;
-
+
if (this->channels[0] > this->channels[1]) {
for (i = 0; i < count; i++) {
*dest = *src >> 1;
&audio_convert_details);
g_return_val_if_fail(factory != NULL, FALSE);
- gst_element_factory_add_pad_template (factory,
- GST_PAD_TEMPLATE_GET (audio_convert_src_template_factory));
- gst_element_factory_add_pad_template (factory,
- GST_PAD_TEMPLATE_GET (audio_convert_sink_template_factory));
+ gst_element_factory_add_pad_template (factory,
+ GST_PAD_TEMPLATE_GET (audio_convert_src_template_factory));
+ gst_element_factory_add_pad_template (factory,
+ GST_PAD_TEMPLATE_GET (audio_convert_sink_template_factory));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
-
+
return TRUE;
}
projects / platform / upstream / gstreamer.git / commitdiff