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law: port to 0.11

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This commit is contained in:
Wim Taymans 2011-08-30 12:25:35 +02:00
parent 5ad41c7292
commit ef560b86e2
4 changed files with 132 additions and 180 deletions
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22
gst/law/alaw.c
View file

@ -23,14 +23,18 @@
#include "alaw-encode.h"
#include "alaw-decode.h"
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define INT_FORMAT "S16_LE"
#else
#define INT_FORMAT "S16_BE"
#endif
GstStaticPadTemplate alaw_dec_src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"rate = (int) [ 8000, 192000 ], "
"channels = (int) [ 1, 2 ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) True")
GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " INT_FORMAT ", "
"rate = (int) [ 8000, 192000 ], " "channels = (int) [ 1, 2 ]")
);
GstStaticPadTemplate alaw_dec_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
@ -43,11 +47,9 @@ GstStaticPadTemplate alaw_dec_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GstStaticPadTemplate alaw_enc_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"rate = (int) [ 8000, 192000 ], "
"channels = (int) [ 1, 2 ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) True")
GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " INT_FORMAT ", "
"rate = (int) [ 8000, 192000 ], " "channels = (int) [ 1, 2 ]")
);
GstStaticPadTemplate alaw_enc_src_factory = GST_STATIC_PAD_TEMPLATE ("src",

147
gst/law/mulaw-decode.c
View file

@ -26,9 +26,16 @@
#include "config.h"
#endif
#include <gst/gst.h>
#include "mulaw-decode.h"
#include "mulaw-conversion.h"
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define INT_FORMAT "S16_LE"
#else
#define INT_FORMAT "S16_BE"
#endif
extern GstStaticPadTemplate mulaw_dec_src_factory;
extern GstStaticPadTemplate mulaw_dec_sink_factory;
@ -44,38 +51,31 @@ enum
ARG_0
};
static void gst_mulawdec_class_init (GstMuLawDecClass * klass);
static void gst_mulawdec_base_init (GstMuLawDecClass * klass);
static void gst_mulawdec_init (GstMuLawDec * mulawdec);
static GstStateChangeReturn
gst_mulawdec_change_state (GstElement * element, GstStateChange transition);
static gboolean gst_mulawdec_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer);
static GstElementClass *parent_class = NULL;
#define gst_mulawdec_parent_class parent_class
G_DEFINE_TYPE (GstMuLawDec, gst_mulawdec, GST_TYPE_ELEMENT);
static gboolean
mulawdec_sink_setcaps (GstPad * pad, GstCaps * caps)
mulawdec_setcaps (GstMuLawDec * mulawdec, GstCaps * caps)
{
GstMuLawDec *mulawdec;
GstStructure *structure;
int rate, channels;
gboolean ret;
GstCaps *outcaps;
mulawdec = GST_MULAWDEC (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "rate", &rate);
ret = ret && gst_structure_get_int (structure, "channels", &channels);
if (!ret)
return FALSE;
outcaps = gst_caps_new_simple ("audio/x-raw-int",
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE,
outcaps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, INT_FORMAT,
"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, NULL);
ret = gst_pad_set_caps (mulawdec->srcpad, outcaps);
gst_caps_unref (outcaps);
@ -89,7 +89,7 @@ mulawdec_sink_setcaps (GstPad * pad, GstCaps * caps)
}
static GstCaps *
mulawdec_getcaps (GstPad * pad)
mulawdec_getcaps (GstPad * pad, GstCaps * filter)
{
GstMuLawDec *mulawdec;
GstPad *otherpad;
@ -102,14 +102,14 @@ mulawdec_getcaps (GstPad * pad)
/* figure out the name of the caps we are going to return */
if (pad == mulawdec->srcpad) {
name = "audio/x-raw-int";
name = "audio/x-raw";
otherpad = mulawdec->sinkpad;
} else {
name = "audio/x-mulaw";
otherpad = mulawdec->srcpad;
}
/* get caps from the peer, this can return NULL when there is no peer */
othercaps = gst_pad_peer_get_caps (otherpad);
othercaps = gst_pad_peer_get_caps (otherpad, filter);
/* get the template caps to make sure we return something acceptable */
templ = gst_pad_get_pad_template_caps (pad);
@ -129,14 +129,11 @@ mulawdec_getcaps (GstPad * pad)
if (pad == mulawdec->sinkpad) {
/* remove the fields we don't want */
gst_structure_remove_fields (structure, "width", "depth", "endianness",
"signed", NULL);
gst_structure_remove_fields (structure, "format", NULL);
} else {
/* add fixed fields */
gst_structure_set (structure, "width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
gst_structure_set (structure, "format", G_TYPE_STRING, INT_FORMAT,
NULL);
}
}
/* filter against the allowed caps of the pad to return our result */
@ -149,52 +146,20 @@ mulawdec_getcaps (GstPad * pad)
return result;
}
GType
gst_mulawdec_get_type (void)
{
static GType mulawdec_type = 0;
if (!mulawdec_type) {
static const GTypeInfo mulawdec_info = {
sizeof (GstMuLawDecClass),
(GBaseInitFunc) gst_mulawdec_base_init,
NULL,
(GClassInitFunc) gst_mulawdec_class_init,
NULL,
NULL,
sizeof (GstMuLawDec),
0,
(GInstanceInitFunc) gst_mulawdec_init,
};
mulawdec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstMuLawDec", &mulawdec_info,
0);
}
return mulawdec_type;
}
static void
gst_mulawdec_base_init (GstMuLawDecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&mulaw_dec_src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&mulaw_dec_sink_factory));
gst_element_class_set_details_simple (element_class, "Mu Law audio decoder",
"Codec/Decoder/Audio",
"Convert 8bit mu law to 16bit PCM",
"Zaheer Abbas Merali <zaheerabbas at merali dot org>");
}
static void
gst_mulawdec_class_init (GstMuLawDecClass * klass)
{
GstElementClass *element_class = (GstElementClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&mulaw_dec_src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&mulaw_dec_sink_factory));
gst_element_class_set_details_simple (element_class, "Mu Law audio decoder",
"Codec/Decoder/Audio",
"Convert 8bit mu law to 16bit PCM",
"Zaheer Abbas Merali <zaheerabbas at merali dot org>");
element_class->change_state = GST_DEBUG_FUNCPTR (gst_mulawdec_change_state);
}
@ -204,8 +169,8 @@ gst_mulawdec_init (GstMuLawDec * mulawdec)
{
mulawdec->sinkpad =
gst_pad_new_from_static_template (&mulaw_dec_sink_factory, "sink");
gst_pad_set_setcaps_function (mulawdec->sinkpad, mulawdec_sink_setcaps);
gst_pad_set_getcaps_function (mulawdec->sinkpad, mulawdec_getcaps);
gst_pad_set_event_function (mulawdec->sinkpad, gst_mulawdec_event);
gst_pad_set_chain_function (mulawdec->sinkpad, gst_mulawdec_chain);
gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->sinkpad);
@ -216,13 +181,40 @@ gst_mulawdec_init (GstMuLawDec * mulawdec)
gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->srcpad);
}
static gboolean
gst_mulawdec_event (GstPad * pad, GstEvent * event)
{
GstMuLawDec *mulawdec;
gboolean res;
mulawdec = GST_MULAWDEC (GST_PAD_PARENT (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
mulawdec_setcaps (mulawdec, caps);
gst_event_unref (event);
res = TRUE;
break;
}
default:
res = gst_pad_event_default (pad, event);
break;
}
return res;
}
static GstFlowReturn
gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer)
{
GstMuLawDec *mulawdec;
gint16 *linear_data;
guint8 *mulaw_data;
guint mulaw_size;
gsize mulaw_size, linear_size;
GstBuffer *outbuf;
GstFlowReturn ret;
@ -231,17 +223,12 @@ gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer)
if (G_UNLIKELY (mulawdec->rate == 0))
goto not_negotiated;
mulaw_data = (guint8 *) GST_BUFFER_DATA (buffer);
mulaw_size = GST_BUFFER_SIZE (buffer);
mulaw_data = gst_buffer_map (buffer, &mulaw_size, NULL, GST_MAP_READ);
ret =
gst_pad_alloc_buffer_and_set_caps (mulawdec->srcpad,
GST_BUFFER_OFFSET_NONE, mulaw_size * 2, GST_PAD_CAPS (mulawdec->srcpad),
&outbuf);
if (ret != GST_FLOW_OK)
goto alloc_failed;
linear_size = mulaw_size * 2;
linear_data = (gint16 *) GST_BUFFER_DATA (outbuf);
outbuf = gst_buffer_new_allocate (NULL, linear_size, 0);
linear_data = gst_buffer_map (outbuf, NULL, NULL, GST_MAP_WRITE);
/* copy discont flag */
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))
@ -250,13 +237,14 @@ gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer)
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
if (GST_BUFFER_DURATION (outbuf) == GST_CLOCK_TIME_NONE)
GST_BUFFER_DURATION (outbuf) = gst_util_uint64_scale_int (GST_SECOND,
mulaw_size * 2, 2 * mulawdec->rate * mulawdec->channels);
linear_size, 2 * mulawdec->rate * mulawdec->channels);
else
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buffer);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (mulawdec->srcpad));
mulaw_decode (mulaw_data, linear_data, mulaw_size);
gst_buffer_unmap (outbuf, linear_data, -1);
gst_buffer_unmap (buffer, mulaw_data, -1);
gst_buffer_unref (buffer);
ret = gst_pad_push (mulawdec->srcpad, outbuf);
@ -270,13 +258,6 @@ not_negotiated:
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
}
alloc_failed:
{
GST_DEBUG_OBJECT (mulawdec, "pad alloc failed, flow: %s",
gst_flow_get_name (ret));
gst_buffer_unref (buffer);
return ret;
}
}
static GstStateChangeReturn

121
gst/law/mulaw-encode.c
View file

@ -44,18 +44,16 @@ enum
ARG_0
};
static void gst_mulawenc_class_init (GstMuLawEncClass * klass);
static void gst_mulawenc_base_init (GstMuLawEncClass * klass);
static void gst_mulawenc_init (GstMuLawEnc * mulawenc);
static gboolean gst_mulawenc_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_mulawenc_chain (GstPad * pad, GstBuffer * buffer);
static GstElementClass *parent_class = NULL;
#define gst_mulawenc_parent_class parent_class
G_DEFINE_TYPE (GstMuLawEnc, gst_mulawenc, GST_TYPE_ELEMENT);
/*static guint gst_stereo_signals[LAST_SIGNAL] = { 0 }; */
static GstCaps *
mulawenc_getcaps (GstPad * pad)
mulawenc_getcaps (GstPad * pad, GstCaps * filter)
{
GstMuLawEnc *mulawenc;
GstPad *otherpad;
@ -75,7 +73,7 @@ mulawenc_getcaps (GstPad * pad)
otherpad = mulawenc->srcpad;
}
/* get caps from the peer, this can return NULL when there is no peer */
othercaps = gst_pad_peer_get_caps (otherpad);
othercaps = gst_pad_peer_get_caps (otherpad, filter);
/* get the template caps to make sure we return something acceptable */
templ = gst_pad_get_pad_template_caps (pad);
@ -116,66 +114,31 @@ mulawenc_getcaps (GstPad * pad)
}
static gboolean
mulawenc_setcaps (GstPad * pad, GstCaps * caps)
mulawenc_setcaps (GstMuLawEnc * mulawenc, GstCaps * caps)
{
GstMuLawEnc *mulawenc;
GstPad *otherpad;
GstStructure *structure;
GstCaps *base_caps;
mulawenc = GST_MULAWENC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "channels", &mulawenc->channels);
gst_structure_get_int (structure, "rate", &mulawenc->rate);
if (pad == mulawenc->sinkpad) {
otherpad = mulawenc->srcpad;
} else {
otherpad = mulawenc->sinkpad;
}
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (otherpad));
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (mulawenc->srcpad));
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set (structure, "rate", G_TYPE_INT, mulawenc->rate, NULL);
gst_structure_set (structure, "channels", G_TYPE_INT, mulawenc->channels,
NULL);
gst_pad_set_caps (otherpad, base_caps);
gst_pad_set_caps (mulawenc->srcpad, base_caps);
gst_object_unref (mulawenc);
gst_caps_unref (base_caps);
return TRUE;
}
GType
gst_mulawenc_get_type (void)
{
static GType mulawenc_type = 0;
if (!mulawenc_type) {
static const GTypeInfo mulawenc_info = {
sizeof (GstMuLawEncClass),
(GBaseInitFunc) gst_mulawenc_base_init,
NULL,
(GClassInitFunc) gst_mulawenc_class_init,
NULL,
NULL,
sizeof (GstMuLawEnc),
0,
(GInstanceInitFunc) gst_mulawenc_init,
};
mulawenc_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstMuLawEnc", &mulawenc_info,
0);
}
return mulawenc_type;
}
static void
gst_mulawenc_base_init (GstMuLawEncClass * klass)
gst_mulawenc_class_init (GstMuLawEncClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
@ -183,31 +146,25 @@ gst_mulawenc_base_init (GstMuLawEncClass * klass)
gst_static_pad_template_get (&mulaw_enc_src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&mulaw_enc_sink_factory));
gst_element_class_set_details_simple (element_class, "Mu Law audio encoder",
"Codec/Encoder/Audio",
"Convert 16bit PCM to 8bit mu law",
"Zaheer Abbas Merali <zaheerabbas at merali dot org>");
}
static void
gst_mulawenc_class_init (GstMuLawEncClass * klass)
{
parent_class = g_type_class_peek_parent (klass);
}
static void
gst_mulawenc_init (GstMuLawEnc * mulawenc)
{
mulawenc->sinkpad =
gst_pad_new_from_static_template (&mulaw_enc_sink_factory, "sink");
gst_pad_set_setcaps_function (mulawenc->sinkpad, mulawenc_setcaps);
gst_pad_set_getcaps_function (mulawenc->sinkpad, mulawenc_getcaps);
gst_pad_set_event_function (mulawenc->sinkpad, gst_mulawenc_event);
gst_pad_set_chain_function (mulawenc->sinkpad, gst_mulawenc_chain);
gst_element_add_pad (GST_ELEMENT (mulawenc), mulawenc->sinkpad);
mulawenc->srcpad =
gst_pad_new_from_static_template (&mulaw_enc_src_factory, "src");
gst_pad_set_setcaps_function (mulawenc->srcpad, mulawenc_setcaps);
gst_pad_set_getcaps_function (mulawenc->srcpad, mulawenc_getcaps);
gst_pad_use_fixed_caps (mulawenc->srcpad);
gst_element_add_pad (GST_ELEMENT (mulawenc), mulawenc->srcpad);
@ -217,12 +174,39 @@ gst_mulawenc_init (GstMuLawEnc * mulawenc)
mulawenc->rate = 0;
}
static gboolean
gst_mulawenc_event (GstPad * pad, GstEvent * event)
{
GstMuLawEnc *mulawenc;
gboolean res;
mulawenc = GST_MULAWENC (GST_PAD_PARENT (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
mulawenc_setcaps (mulawenc, caps);
gst_event_unref (event);
res = TRUE;
break;
}
default:
res = gst_pad_event_default (pad, event);
break;
}
return res;
}
static GstFlowReturn
gst_mulawenc_chain (GstPad * pad, GstBuffer * buffer)
{
GstMuLawEnc *mulawenc;
gint16 *linear_data;
guint linear_size;
gsize linear_size;
guint8 *mulaw_data;
guint mulaw_size;
GstBuffer *outbuf;
@ -234,32 +218,21 @@ gst_mulawenc_chain (GstPad * pad, GstBuffer * buffer)
if (!mulawenc->rate || !mulawenc->channels)
goto not_negotiated;
linear_data = (gint16 *) GST_BUFFER_DATA (buffer);
linear_size = GST_BUFFER_SIZE (buffer);
linear_data = gst_buffer_map (buffer, &linear_size, NULL, GST_MAP_READ);
mulaw_size = linear_size / 2;
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
ret = gst_pad_alloc_buffer_and_set_caps (mulawenc->srcpad,
GST_BUFFER_OFFSET_NONE, mulaw_size, GST_PAD_CAPS (mulawenc->srcpad),
&outbuf);
if (ret != GST_FLOW_OK)
goto alloc_failed;
outbuf = gst_buffer_new_allocate (NULL, mulaw_size, 0);
if (duration == -1) {
duration = gst_util_uint64_scale_int (mulaw_size,
GST_SECOND, mulawenc->rate * mulawenc->channels);
}
if (GST_BUFFER_SIZE (outbuf) < mulaw_size) {
/* pad-alloc can suggest a smaller size */
gst_buffer_unref (outbuf);
outbuf = gst_buffer_new_and_alloc (mulaw_size);
}
mulaw_data = (guint8 *) GST_BUFFER_DATA (outbuf);
mulaw_data = gst_buffer_map (outbuf, NULL, NULL, GST_MAP_WRITE);
/* copy discont flag */
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))
@ -268,10 +241,10 @@ gst_mulawenc_chain (GstPad * pad, GstBuffer * buffer)
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
GST_BUFFER_DURATION (outbuf) = duration;
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (mulawenc->srcpad));
mulaw_encode (linear_data, mulaw_data, mulaw_size);
gst_buffer_unmap (outbuf, mulaw_data, -1);
gst_buffer_unmap (buffer, linear_data, -1);
gst_buffer_unref (buffer);
ret = gst_pad_push (mulawenc->srcpad, outbuf);
@ -288,10 +261,4 @@ not_negotiated:
gst_buffer_unref (buffer);
goto done;
}
alloc_failed:
{
GST_DEBUG_OBJECT (mulawenc, "pad alloc failed");
gst_buffer_unref (buffer);
goto done;
}
}

22
gst/law/mulaw.c
View file

@ -22,14 +22,18 @@
#include "mulaw-encode.h"
#include "mulaw-decode.h"
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define INT_FORMAT "S16_LE"
#else
#define INT_FORMAT "S16_BE"
#endif
GstStaticPadTemplate mulaw_dec_src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"rate = (int) [ 8000, 192000 ], "
"channels = (int) [ 1, 2 ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) True")
GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " INT_FORMAT ", "
"rate = (int) [ 8000, 192000 ], " "channels = (int) [ 1, 2 ]")
);
GstStaticPadTemplate mulaw_dec_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
@ -42,11 +46,9 @@ GstStaticPadTemplate mulaw_dec_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GstStaticPadTemplate mulaw_enc_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"rate = (int) [ 8000, 192000 ], "
"channels = (int) [ 1, 2 ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) True")
GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " INT_FORMAT ", "
"rate = (int) [ 8000, 192000 ], " "channels = (int) [ 1, 2 ]")
);
GstStaticPadTemplate mulaw_enc_src_factory = GST_STATIC_PAD_TEMPLATE ("src",