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gst/iec958/ac3iec.*: (NORMAL_CAPS_DEF, RAW_AUDIO_CAPS_DEF, ac3iec_class_init)

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Original commit message from CVS:
2005-12-26  Martin Soto  <martinsoto@users.sourceforge.net>

* gst/iec958/ac3iec.h:
* gst/iec958/ac3iec.c:
(NORMAL_CAPS_DEF, RAW_AUDIO_CAPS_DEF, ac3iec_class_init)
(ac3iec_init, ac3iec_set_property, ac3iec_get_property): Add a
raw-audio property to ac3iec958 that allows setting the source pad
caps to raw audio instead of audio/x-iec958. This makes it
possible to use ac3iec958 together with the normal alsasink
element to drive an external receiver that autodetects AC3
content.
This commit is contained in:
Martin Soto 2005-12-26 17:48:32 +00:00
parent 96b959fc53
commit f2d10b0927
3 changed files with 64 additions and 16 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
2005-12-26 Martin Soto <martinsoto@users.sourceforge.net>
* gst/iec958/ac3iec.h:
* gst/iec958/ac3iec.c:
(NORMAL_CAPS_DEF, RAW_AUDIO_CAPS_DEF, ac3iec_class_init)
(ac3iec_init, ac3iec_set_property, ac3iec_get_property): Add a
raw-audio property to ac3iec958 that allows setting the source pad
caps to raw audio instead of audio/x-iec958. This makes it
possible to use ac3iec958 together with the normal alsasink
element to drive an external receiver that autodetects AC3
content.
2005-12-23 Michael Smith <msmith@fluendo.com>
* gst/iec958/ac3iec.c: (ac3iec_init), (ac3iec_setcaps),

61
gst/iec958/ac3iec.c
View file

@ -56,7 +56,8 @@ enum
enum
{
ARG_0,
PROP_0,
PROP_RAW_AUDIO,
};
@ -67,12 +68,24 @@ static GstStaticPadTemplate ac3iec_sink_template =
GST_STATIC_CAPS ("audio/x-private1-ac3; audio/x-ac3; audio/ac3")
);
/* Two different output caps are possible. */
#define NORMAL_CAPS_DEF "audio/x-iec958"
#define RAW_AUDIO_CAPS_DEF "audio/x-raw-int, " \
"endianness = (int) " G_STRINGIFY (G_BIG_ENDIAN) ", " \
"signed = (boolean) true, " \
"width = (int) 16, " \
"depth = (int) 16, " \
"rate = (int) 48000, " \
"channels = (int) 2"
static GstStaticCaps normal_caps = GST_STATIC_CAPS (NORMAL_CAPS_DEF);
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS (RAW_AUDIO_CAPS_DEF);
static GstStaticPadTemplate ac3iec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-iec958")
);
GST_STATIC_CAPS (NORMAL_CAPS_DEF ";" RAW_AUDIO_CAPS_DEF));
static void ac3iec_base_init (gpointer g_class);
static void ac3iec_class_init (AC3IECClass * klass);
@ -151,6 +164,11 @@ ac3iec_class_init (AC3IECClass * klass)
gobject_class->get_property = ac3iec_get_property;
gobject_class->finalize = ac3iec_finalize;
g_object_class_install_property (gobject_class, PROP_RAW_AUDIO,
g_param_spec_boolean ("raw-audio", "raw-audio",
"If true, source pad caps are set to raw audio.",
FALSE, G_PARAM_READWRITE));
gstelement_class->change_state = ac3iec_change_state;
}
@ -158,6 +176,8 @@ ac3iec_class_init (AC3IECClass * klass)
static void
ac3iec_init (AC3IEC * ac3iec)
{
GstCaps *src_caps;
ac3iec->sink =
gst_pad_new_from_template (gst_static_pad_template_get
(&ac3iec_sink_template), "sink");
@ -169,9 +189,11 @@ ac3iec_init (AC3IEC * ac3iec)
gst_pad_new_from_template (gst_static_pad_template_get
(&ac3iec_src_template), "src");
gst_pad_use_fixed_caps (ac3iec->src);
src_caps = gst_static_caps_get (&normal_caps);
gst_pad_set_caps (ac3iec->src, src_caps);
gst_caps_unref (src_caps);
gst_element_add_pad (GST_ELEMENT (ac3iec), ac3iec->src);
ac3iec->cur_ts = GST_CLOCK_TIME_NONE;
ac3iec->padder = g_malloc (sizeof (ac3_padder));
@ -190,12 +212,23 @@ static void
ac3iec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
AC3IEC *ac3iec;
/* it's not null if we got it, but it might not be ours */
ac3iec = AC3IEC (object);
AC3IEC *ac3iec = AC3IEC (object);
switch (prop_id) {
case PROP_RAW_AUDIO:
{
GstCaps *src_caps;
ac3iec->raw_audio = g_value_get_boolean (value);
if (ac3iec->raw_audio) {
src_caps = gst_static_caps_get (&raw_audio_caps);
} else {
src_caps = gst_static_caps_get (&normal_caps);
}
gst_pad_set_caps (ac3iec->src, src_caps);
gst_caps_unref (src_caps);
break;
}
default:
break;
}
@ -221,14 +254,12 @@ static void
ac3iec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
AC3IEC *ac3iec;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_AC3IEC (object));
ac3iec = AC3IEC (object);
AC3IEC *ac3iec = AC3IEC (object);
switch (prop_id) {
case PROP_RAW_AUDIO:
g_value_set_boolean (value, ac3iec->raw_audio);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

7
gst/iec958/ac3iec.h
View file

@ -63,7 +63,12 @@ struct _AC3IEC {
ac3_padder *padder; /* AC3 to SPDIF padder object. */
gboolean dvdmode;
gboolean dvdmode; /* TRUE if DVD mode (input is
demultiplexed from a DVD) is
active. */
gboolean raw_audio; /* TRUE if output pad should use raw
audio capabilities. */
};