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Metadata support

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Original commit message from CVS:
Metadata support
Bugfix and code cleanup
This commit is contained in:
Jeremy Simon 2003-04-25 21:03:55 +00:00
parent ed6cf23b38
commit 0f08b0e460
3 changed files with 143 additions and 21 deletions
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155
gst/monkeyaudio/gstmonkeydec.cc
View file

@ -42,7 +42,8 @@ enum
enum
{
ARG_0
ARG_0,
ARG_METADATA,
};
static void gst_monkeydec_class_init (GstMonkeyDecClass *klass);
@ -59,6 +60,12 @@ static const GstFormat*
gst_monkeydec_get_formats (GstPad *pad);
static GstElementStateReturn
gst_monkeydec_change_state (GstElement *element);
static void gst_monkeydec_get_property (GObject *object, guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gst_monkeydec_set_property (GObject *object, guint prop_id,
const GValue *value,
GParamSpec *pspec);
static GstElementClass *parent_class = NULL;
@ -95,8 +102,14 @@ gst_monkeydec_class_init (GstMonkeyDecClass *klass)
gstelement_class = (GstElementClass *) klass;
gstelement_class->change_state = gst_monkeydec_change_state;
gobject_class->get_property = gst_monkeydec_get_property;
gobject_class->set_property = gst_monkeydec_set_property;
parent_class = GST_ELEMENT_CLASS( g_type_class_ref(GST_TYPE_ELEMENT));
g_object_class_install_property (gobject_class, ARG_METADATA,
g_param_spec_boxed ("metadata", "Metadata", "(logical) Stream metadata",
GST_TYPE_CAPS, G_PARAM_READABLE));
}
@ -115,6 +128,8 @@ gst_monkeydec_init (GstMonkeyDec * monkeydec)
gst_pad_set_query_function (monkeydec->srcpad, gst_monkeydec_src_query);
gst_pad_set_query_type_function (monkeydec->srcpad, (GstPadQueryTypeFunction)(gst_monkeydec_get_query_types));
gst_pad_set_formats_function (monkeydec->srcpad, (GstPadFormatsFunction)(gst_monkeydec_get_formats));
monkeydec->metadata = NULL;
}
@ -166,7 +181,6 @@ gst_monkeydec_src_query (GstPad *pad, GstQueryType type,
*format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
*value = monkeydec->decomp->GetInfo (APE_DECOMPRESS_LENGTH_MS) * 1000000LL;
g_print ("Song lentgh : %lld\n", *value);
break;
default:
res = FALSE;
@ -179,7 +193,6 @@ g_print ("Song lentgh : %lld\n", *value);
*format = GST_FORMAT_TIME;
default:
*value = monkeydec->decomp->GetInfo (APE_DECOMPRESS_CURRENT_MS) * 1000000LL;
//g_print ("Song position : %lld\n", *value);
break;
}
default:
@ -210,10 +223,8 @@ gst_monkeydec_src_event (GstPad *pad, GstEvent *event)
/* shave off the flush flag, we'll need it later */
flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
monkeydec->seek_to = GST_EVENT_SEEK_OFFSET (event) * monkeydec->frequency / GST_SECOND;
g_print ("Seek to : %lld\n", monkeydec->seek_to);
monkeydec->io->need_discont = TRUE;
monkeydec->seek_to = GST_EVENT_SEEK_OFFSET (event) * monkeydec->frequency / GST_SECOND;
monkeydec->io->need_discont = TRUE;
break;
}
default:
@ -226,6 +237,64 @@ g_print ("Seek to : %lld\n", monkeydec->seek_to);
return res;
}
static gboolean
gst_monkeydec_update_metadata (GstMonkeyDec *monkeydec)
{
GstProps *props = NULL;
GstPropsEntry *entry;
gchar *name, *value;
CAPETagField *field;
CAPETag *tag;
BOOL ret;
/* clear old one */
if (monkeydec->metadata) {
gst_caps_unref (monkeydec->metadata);
monkeydec->metadata = NULL;
}
g_return_val_if_fail (monkeydec, FALSE);
tag = new CAPETag (monkeydec->io, TRUE);
g_return_val_if_fail (tag, FALSE);
if (!tag->GetHasAPETag ())
return FALSE;
ret = tag->GetNextTagField (TRUE, &field);
g_return_val_if_fail (ret, FALSE);
/* create props to hold the key/value pairs */
props = gst_props_empty_new ();
while (ret)
{
if (field->GetFieldValueSize() != 0)
{
name = g_strndup (field->GetFieldName(), field->GetFieldSize());
value = g_strndup (field->GetFieldValue(), field->GetFieldValueSize());
entry = gst_props_entry_new (name, GST_PROPS_STRING_TYPE, value);
gst_props_add_entry (props, (GstPropsEntry *) entry);
g_print ("%s : %s\n", name, value);
}
ret = tag->GetNextTagField (FALSE, &field);
}
monkeydec->metadata = gst_caps_new ("monkeydec_metadata", "application/x-gst-metadata",
props);
g_object_notify (G_OBJECT (monkeydec), "metadata");
delete tag;
return TRUE;
}
static void
gst_monkeydec_loop (GstElement *element)
{
@ -235,7 +304,8 @@ gst_monkeydec_loop (GstElement *element)
GstFormat format;
gint64 timestamp;
gint retval;
g_return_if_fail (element != NULL);
g_return_if_fail (GST_IS_MONKEYDEC (element));
@ -255,8 +325,23 @@ gst_monkeydec_loop (GstElement *element)
}
monkeydec->io->sinkpad = monkeydec->sinkpad;
monkeydec->io->Open ("");
gst_monkeydec_update_metadata (monkeydec);
/*monkeydec->tag = new CAPETag (monkeydec->io, TRUE);
if (monkeydec->tag->GetHasAPETag ())
g_print ("Yes APE\n");
else
g_print ("No APE\n");
if (monkeydec->tag->GetHasID3Tag ())
g_print ("Yes Id3\n");
else
g_print ("No Id3\n");
if (monkeydec->tag->GetNextTagField(TRUE, &field))
g_print ("Champs : %s %.*s\n", field->GetFieldName(), field->GetFieldValueSize(), field->GetFieldValue());
*/
monkeydec->decomp = CreateIAPEDecompressEx (monkeydec->io, &retval);
if (monkeydec->decomp == NULL)
{
@ -267,7 +352,7 @@ gst_monkeydec_loop (GstElement *element)
monkeydec->channels = monkeydec->decomp->GetInfo (APE_INFO_CHANNELS);
monkeydec->frequency = monkeydec->decomp->GetInfo (APE_INFO_SAMPLE_RATE);
monkeydec->depth = monkeydec->decomp->GetInfo (APE_INFO_BITS_PER_SAMPLE);
monkeydec->io->eos = FALSE;
monkeydec->total_samples = 0;
@ -284,10 +369,14 @@ gst_monkeydec_loop (GstElement *element)
monkeydec->decomp->Seek (monkeydec->seek_to);
monkeydec->seek_to = 0;
}
monkeydec->decomp->GetData((char *) GST_BUFFER_DATA (buffer_out), 1024, &blocks_retrieved);
format = GST_FORMAT_TIME;
gst_monkeydec_src_query (monkeydec->srcpad, GST_QUERY_POSITION, &format, &timestamp);
GST_BUFFER_SIZE (buffer_out) = blocks_retrieved * monkeydec->decomp->GetInfo(APE_INFO_BLOCK_ALIGN);
GST_BUFFER_TIMESTAMP (buffer_out) = timestamp;
if (monkeydec->io->need_discont)
{
@ -304,12 +393,6 @@ gst_monkeydec_loop (GstElement *element)
}
}
monkeydec->decomp->GetData((char *) GST_BUFFER_DATA (buffer_out), 1024, &blocks_retrieved);
GST_BUFFER_SIZE (buffer_out) = blocks_retrieved * monkeydec->decomp->GetInfo(APE_INFO_BLOCK_ALIGN);
GST_BUFFER_TIMESTAMP (buffer_out) = timestamp;
if (!GST_PAD_CAPS (monkeydec->srcpad)) {
gst_pad_try_set_caps (monkeydec->srcpad,
GST_CAPS_NEW (
@ -368,3 +451,41 @@ gst_monkeydec_change_state (GstElement *element)
return GST_STATE_SUCCESS;
}
static void
gst_monkeydec_set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
GstMonkeyDec *monkeydec;
g_return_if_fail (GST_IS_MONKEYDEC (object));
monkeydec = GST_MONKEYDEC (object);
switch (prop_id) {
default:
g_warning ("Unknown property id\n");
}
}
static void
gst_monkeydec_get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
GstMonkeyDec *monkeydec;
g_return_if_fail (GST_IS_MONKEYDEC (object));
monkeydec = GST_MONKEYDEC (object);
switch (prop_id) {
case ARG_METADATA:
g_value_set_boxed (value, monkeydec->metadata);
break;
/* case ARG_STREAMINFO:
g_value_set_boxed (value, monkeydec->streaminfo);
break;*/
default:
g_warning ("Unknown property id\n");
}
}

6
gst/monkeyaudio/gstmonkeydec.h
View file

@ -25,6 +25,7 @@
#include "libmonkeyaudio/GlobalFunctions.h"
#include "libmonkeyaudio/MACLib.h"
#include "libmonkeyaudio/IO.h"
#include "libmonkeyaudio/APETag.h"
#include <gst/gst.h>
@ -57,9 +58,10 @@ struct _GstMonkeyDec
guint channels;
guint frequency;
guint depth;
GstCaps *metadata;
IAPEDecompress *decomp;
sinkpad_CIO *io;
};

3
gst/monkeyaudio/monkey_io.cc
View file

@ -137,8 +137,7 @@ GstSeekType seek_type;
return -1;
break;
}
if (gst_bytestream_seek (bs, nDistance, seek_type))
if (gst_bytestream_seek (bs, (gint64) ABS (nDistance), seek_type))
return 0;
return -1;