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[MOVED FROM GST-P-FARSIGHT] Port sirenenc to gstelement

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20080704195102-3e2dc-cd7687512ac560faaf15f53e1e262d1874a36cdf.gz
This commit is contained in:
Olivier Crete 2008-07-04 19:51:02 +00:00 committed by Edward Hervey
parent b696a8dd6c
commit 8722c6e6f5
2 changed files with 84 additions and 145 deletions
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214
gst/siren/gstsirenenc.c
View file

@ -73,15 +73,10 @@ enum
static void gst_siren_enc_dispose (GObject *object); static void gst_siren_enc_dispose (GObject *object);
static GstFlowReturn gst_siren_enc_transform (GstBaseTransform *trans, static GstFlowReturn
GstBuffer *inbuf, GstBuffer *outbuf); gst_siren_enc_chain (GstPad *pad, GstBuffer *buf);
static gboolean gst_siren_enc_transform_size (GstBaseTransform *trans, static GstStateChangeReturn
GstPadDirection direction, GstCaps *caps, guint size, gst_siren_change_state (GstElement *element, GstStateChange transition);
GstCaps *othercaps, guint *othersize);
static GstCaps * gst_siren_enc_transform_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps);
static gboolean gst_siren_enc_start (GstBaseTransform *trans);
static gboolean gst_siren_enc_stop (GstBaseTransform *trans);
static void static void
@ -91,8 +86,8 @@ _do_init (GType type)
(sirenenc_debug, "sirenenc", 0, "sirenenc"); (sirenenc_debug, "sirenenc", 0, "sirenenc");
} }
GST_BOILERPLATE_FULL (GstSirenEnc, gst_siren_enc, GstBaseTransform, GST_BOILERPLATE_FULL (GstSirenEnc, gst_siren_enc, GstElement,
GST_TYPE_BASE_TRANSFORM, _do_init); GST_TYPE_ELEMENT, _do_init);
static void static void
gst_siren_enc_base_init (gpointer klass) gst_siren_enc_base_init (gpointer klass)
@ -111,25 +106,16 @@ static void
gst_siren_enc_class_init (GstSirenEncClass *klass) gst_siren_enc_class_init (GstSirenEncClass *klass)
{ {
GObjectClass *gobject_class; GObjectClass *gobject_class;
GstBaseTransformClass *gstbasetransform_class; GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass; gobject_class = (GObjectClass *) klass;
gstbasetransform_class = (GstBaseTransformClass *) klass; gstelement_class = (GstElementClass *) klass;
GST_DEBUG ("Initializing Class"); GST_DEBUG ("Initializing Class");
gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_siren_enc_dispose); gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_siren_enc_dispose);
gstbasetransform_class->transform = gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_siren_change_state);
GST_DEBUG_FUNCPTR (gst_siren_enc_transform);
gstbasetransform_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_siren_enc_transform_caps);
gstbasetransform_class->transform_size =
GST_DEBUG_FUNCPTR (gst_siren_enc_transform_size);
gstbasetransform_class->start =
GST_DEBUG_FUNCPTR (gst_siren_enc_start);
gstbasetransform_class->stop =
GST_DEBUG_FUNCPTR (gst_siren_enc_stop);
parent_class = g_type_class_peek_parent (klass); parent_class = g_type_class_peek_parent (klass);
@ -141,9 +127,20 @@ gst_siren_enc_init (GstSirenEnc *enc, GstSirenEncClass *klass)
{ {
GST_DEBUG ("Initializing"); GST_DEBUG ("Initializing");
enc->encoder = NULL; enc->encoder = Siren7_NewEncoder (16000);
enc->adapter = gst_adapter_new (); enc->adapter = gst_adapter_new ();
enc->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
enc->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
gst_pad_set_chain_function (enc->sinkpad,
GST_DEBUG_FUNCPTR (gst_siren_enc_chain));
gst_element_add_pad (GST_ELEMENT (enc), enc->sinkpad);
gst_element_add_pad (GST_ELEMENT (enc), enc->srcpad);
enc->srccaps = gst_static_pad_template_get_caps (&srctemplate);
GST_DEBUG ("Init done"); GST_DEBUG ("Init done");
} }
@ -163,140 +160,60 @@ gst_siren_enc_dispose (GObject *object)
enc->adapter = NULL; enc->adapter = NULL;
} }
if (enc->srccaps)
{
gst_caps_unref (enc->srccaps);
enc->srccaps = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object); G_OBJECT_CLASS (parent_class)->dispose (object);
GST_DEBUG ("Dispose done"); GST_DEBUG ("Dispose done");
} }
static gboolean
gst_siren_enc_start (GstBaseTransform *trans)
{
GstSirenEnc *enc = GST_SIREN_ENC (trans);
GST_DEBUG ("Start");
if (enc->encoder) {
Siren7_CloseEncoder (enc->encoder);
enc->encoder = NULL;
}
enc->encoder = Siren7_NewEncoder (16000);
gst_adapter_clear (enc->adapter);
return enc->encoder != NULL;
}
static gboolean
gst_siren_enc_stop (GstBaseTransform *trans)
{
GstSirenEnc *enc = GST_SIREN_ENC (trans);
GST_DEBUG ("Stop");
if (enc->encoder) {
Siren7_CloseEncoder (enc->encoder);
enc->encoder = NULL;
}
gst_adapter_clear (enc->adapter);
return TRUE;
}
static gboolean gst_siren_enc_transform_size (GstBaseTransform *trans,
GstPadDirection direction, GstCaps *caps, guint size,
GstCaps *othercaps, guint *othersize)
{
GstSirenEnc *enc = GST_SIREN_ENC (trans);
GstStructure *structure;
const gchar *in_name;
const gchar *out_name;
if (caps == NULL || othercaps == NULL) {
GST_WARNING ("caps NULL");
return FALSE;
}
structure = gst_caps_get_structure (caps, 0);
in_name = gst_structure_get_name (structure);
structure = gst_caps_get_structure (othercaps, 0);
out_name = gst_structure_get_name (structure);
GST_DEBUG ("Transform size from caps '%s' to '%s'", in_name, out_name);
if (in_name == NULL || out_name == NULL) {
return FALSE;
} else if (strcmp (in_name, "audio/x-raw-int") == 0 &&
strcmp (out_name, "audio/x-siren") == 0 ) {
size += gst_adapter_available (enc->adapter);
*othersize = size / 16;
*othersize -= *othersize % 40;
if ((size / 16) % 40 > 0)
*othersize+=40;
} else if (strcmp (in_name, "audio/x-siren") == 0 &&
strcmp (out_name, "audio/x-raw-int") == 0 ) {
*othersize = size * 16;
*othersize -= *othersize % 640;
if ((size * 16) % 640 > 0)
*othersize+= 640;
} else {
GST_DEBUG ("Unknown in/out caps");
return FALSE;
}
GST_DEBUG ("Transform size %d to %d", size, *othersize);
return TRUE;
}
static GstCaps * gst_siren_enc_transform_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps)
{
GST_DEBUG ("Transforming caps");
if (direction == GST_PAD_SRC) {
return gst_static_pad_template_get_caps (&sinktemplate);
} else if (direction == GST_PAD_SINK) {
return gst_static_pad_template_get_caps (&srctemplate);
}
/* Make gcc happy */
return NULL;
}
static GstFlowReturn static GstFlowReturn
gst_siren_enc_transform (GstBaseTransform *trans, GstBuffer *inbuf, gst_siren_enc_chain (GstPad *pad, GstBuffer *buf)
GstBuffer *outbuf)
{ {
GstSirenEnc *enc = GST_SIREN_ENC (gst_pad_get_parent_element (pad));
GstSirenEnc *enc = GST_SIREN_ENC (trans);
GstFlowReturn ret = GST_FLOW_OK; GstFlowReturn ret = GST_FLOW_OK;
GstBuffer *encoded = NULL;
guint8 *data = NULL; guint8 *data = NULL;
gint offset = 0; gint offset = 0;
gint encode_ret = 0; gint encode_ret = 0;
gint size = 0;
GST_DEBUG ("Transform"); GST_DEBUG ("Transform");
if (enc->encoder == NULL) { if (enc->encoder == NULL) {
GST_DEBUG ("Siren encoder not set"); GST_WARNING ("Siren encoder not set");
return GST_FLOW_WRONG_STATE; return GST_FLOW_WRONG_STATE;
} }
if (enc->adapter == NULL) { if (enc->adapter == NULL) {
GST_DEBUG ("Adapter not set"); GST_ERROR ("Adapter not set");
return GST_FLOW_UNEXPECTED; return GST_FLOW_ERROR;
} }
gst_buffer_ref (inbuf); gst_adapter_push (enc->adapter, buf);
gst_adapter_push (enc->adapter, inbuf);
GST_DEBUG ("Received buffer of size %d with adapter of size : %d", GST_DEBUG ("Received buffer of size %d with adapter of size : %d",
GST_BUFFER_SIZE (inbuf), gst_adapter_available (enc->adapter)); GST_BUFFER_SIZE (buf), gst_adapter_available (enc->adapter));
data = GST_BUFFER_DATA (outbuf); size = gst_adapter_available (enc->adapter);
offset = 0; size /= 16;
while(gst_adapter_available (enc->adapter) >= 640 && size -= size % 40;
offset + 40 <= GST_BUFFER_SIZE (outbuf) &&
if (size == 0)
return GST_FLOW_OK;
ret = gst_pad_alloc_buffer_and_set_caps (enc->srcpad,
GST_BUFFER_OFFSET (buf) / 16, size, enc->srccaps, &encoded);
if (ret != GST_FLOW_OK)
return ret;
data = GST_BUFFER_DATA (encoded);
while (gst_adapter_available (enc->adapter) >= 640 &&
ret == GST_FLOW_OK) { ret == GST_FLOW_OK) {
GST_DEBUG ("Encoding frame"); GST_DEBUG ("Encoding frame");
@ -305,7 +222,7 @@ gst_siren_enc_transform (GstBaseTransform *trans, GstBuffer *inbuf,
(guint8 *)gst_adapter_peek (enc->adapter, 640), (guint8 *)gst_adapter_peek (enc->adapter, 640),
data + offset); data + offset);
if (encode_ret != 0) { if (encode_ret != 0) {
GST_DEBUG ("Siren7_EncodeFrame returned %d", encode_ret); GST_ERROR ("Siren7_EncodeFrame returned %d", encode_ret);
ret = GST_FLOW_ERROR; ret = GST_FLOW_ERROR;
} }
@ -315,12 +232,37 @@ gst_siren_enc_transform (GstBaseTransform *trans, GstBuffer *inbuf,
GST_DEBUG ("Finished encoding : %d", offset); GST_DEBUG ("Finished encoding : %d", offset);
GST_BUFFER_SIZE (outbuf) = offset; GST_BUFFER_SIZE (encoded) = offset;
ret = gst_pad_push (enc->srcpad, encoded);
return ret; return ret;
} }
static GstStateChangeReturn
gst_siren_change_state (GstElement *element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstSirenEnc *enc = GST_SIREN_ENC (element);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition)
{
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_OBJECT_LOCK (element);
gst_adapter_clear (enc->adapter);
GST_OBJECT_UNLOCK (element);
break;
default:
break;
}
return ret;
}
gboolean gboolean
gst_siren_enc_plugin_init (GstPlugin *plugin) gst_siren_enc_plugin_init (GstPlugin *plugin)

15
gst/siren/gstsirenenc.h
View file

@ -24,7 +24,6 @@
#define __GST_SIREN_ENC_H__ #define __GST_SIREN_ENC_H__
#include <gst/gst.h> #include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/base/gstadapter.h> #include <gst/base/gstadapter.h>
#include "siren7.h" #include "siren7.h"
@ -51,22 +50,20 @@ typedef struct _GstSirenEncPrivate GstSirenEncPrivate;
struct _GstSirenEnc struct _GstSirenEnc
{ {
GstBaseTransform parent; GstElement parent;
SirenEncoder encoder; SirenEncoder encoder;
GstAdapter *adapter; GstAdapter *adapter;
/*< private > */ GstPad *srcpad;
gpointer _gst_reserved[GST_PADDING]; GstPad *sinkpad;
GstCaps *srccaps;
}; };
struct _GstSirenEncClass struct _GstSirenEncClass
{ {
GstBaseTransformClass parent_class; GstElementClass parent_class;
/*< private > */
gpointer _gst_reserved[GST_PADDING];
}; };
GType gst_siren_enc_get_type (void); GType gst_siren_enc_get_type (void);