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Added event handling.

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Original commit message from CVS:
Added event handling.
Fix flush
Fix state change.
Convert to gobject deep_notify
This commit is contained in:
Wim Taymans 2002-02-19 17:29:55 +00:00
parent 9ee4ef8061
commit d93eb7d436
1 changed files with 39 additions and 23 deletions
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62
ext/lame/gstlame.c
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@ -144,6 +144,8 @@ enum {
enum {
ARG_0,
ARG_BITRATE,
ARG_FREQUENCY,
ARG_CHANNELS,
ARG_COMPRESSION_RATIO,
ARG_QUALITY,
ARG_MODE,
@ -227,6 +229,12 @@ gst_lame_class_init (GstLameClass *klass)
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BITRATE,
g_param_spec_int("bitrate","bitrate","bitrate",
G_MININT,G_MAXINT,128,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FREQUENCY,
g_param_spec_int("frequency","frequency","frequency",
0,G_MAXINT, 44100 ,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHANNELS,
g_param_spec_int("channels","channels","channels",
0, 2, 2 ,G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_COMPRESSION_RATIO,
g_param_spec_float("compression_ratio","compression_ratio","compression_ratio",
0.0,200.0,11.0,G_PARAM_READWRITE)); // CHECKME
@ -320,7 +328,7 @@ gst_lame_class_init (GstLameClass *klass)
gobject_class->set_property = gst_lame_set_property;
gobject_class->get_property = gst_lame_get_property;
//gstelement_class->change_state = gst_lame_change_state;
gstelement_class->change_state = gst_lame_change_state;
}
static GstPadConnectReturn
@ -336,20 +344,17 @@ gst_lame_sinkconnect (GstPad *pad, GstCaps *caps)
lame->samplerate = gst_caps_get_int (caps, "rate");
lame->num_channels = gst_caps_get_int (caps, "channels");
gst_element_send_event (GST_ELEMENT (lame),
gst_event_new_info ("channels", GST_PROPS_INT (lame->num_channels), NULL));
gst_element_send_event (GST_ELEMENT (lame),
gst_event_new_info ("rate", GST_PROPS_INT (lame->samplerate), NULL));
GST_DEBUG (0, "rate=%d, channels=%d\n", lame->samplerate, lame->num_channels);
g_print ("rate=%d, channels=%d\n", lame->samplerate, lame->num_channels);
g_object_freeze_notify (G_OBJECT (lame));
g_object_notify (G_OBJECT (lame), "frequency");
g_object_notify (G_OBJECT (lame), "channels");
g_object_thaw_notify (G_OBJECT (lame));
if (gst_lame_setup (lame)) {
lame->initialized = TRUE;
}
else {
gst_element_error (GST_ELEMENT (lame), "could not initialize encoder (wrong parameters?)");
lame->initialized = FALSE;
gst_element_error (GST_ELEMENT (lame), "could not initialize encoder (wrong parameters?)");
}
if (lame->initialized)
return GST_PAD_CONNECT_OK;
@ -370,6 +375,8 @@ gst_lame_init (GstLame *lame)
lame->srcpad = gst_pad_new_from_template (GST_PADTEMPLATE_GET (gst_lame_src_factory), "src");
gst_element_add_pad (GST_ELEMENT (lame), lame->srcpad);
GST_FLAG_SET (lame, GST_ELEMENT_EVENT_AWARE);
GST_DEBUG (0, "setting up lame encoder\n");
lame->lgf = lame_init ();
@ -537,6 +544,12 @@ gst_lame_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec
case ARG_BITRATE:
g_value_set_int (value, lame->bitrate);
break;
case ARG_FREQUENCY:
g_value_set_int (value, lame->samplerate);
break;
case ARG_CHANNELS:
g_value_set_int (value, lame->num_channels);
break;
case ARG_COMPRESSION_RATIO:
g_value_set_float (value, lame->compression_ratio);
break;
@ -648,22 +661,23 @@ gst_lame_chain (GstPad *pad, GstBuffer *buf)
if (!lame->initialized) {
gst_element_error (GST_ELEMENT (lame), "encoder not initialized (input is not audio?)");
if (GST_IS_BUFFER (buf))
gst_buffer_unref (buf);
else
if (GST_IS_EVENT (buf)) {
gst_pad_event_default (pad, GST_EVENT (buf));
}
else {
gst_buffer_unref (buf);
}
return;
}
/* allocate space for output */
mp3_buffer_size = ((GST_BUFFER_SIZE(buf) / (2+lame->num_channels)) * 1.25) + 7200;
mp3_data = g_malloc (mp3_buffer_size);
if (GST_IS_EVENT (buf)) {
switch (GST_EVENT_TYPE (buf)) {
case GST_EVENT_EOS:
eos = TRUE;
case GST_EVENT_FLUSH:
mp3_buffer_size = 7200;
mp3_data = g_malloc (mp3_buffer_size);
mp3_size = lame_encode_flush_nogap (lame->lgf, mp3_data, mp3_buffer_size);
gst_event_free (GST_EVENT (buf));
break;
@ -673,9 +687,15 @@ gst_lame_chain (GstPad *pad, GstBuffer *buf)
}
}
else {
/* allocate space for output */
mp3_buffer_size = ((GST_BUFFER_SIZE(buf) / (2+lame->num_channels)) * 1.25) + 7200;
mp3_data = g_malloc (mp3_buffer_size);
if (lame->num_channels == 2) {
mp3_size = lame_encode_buffer_interleaved (lame->lgf, (short int *)(GST_BUFFER_DATA (buf)),
GST_BUFFER_SIZE (buf) / 4, mp3_data, mp3_buffer_size);
mp3_size = lame_encode_buffer_interleaved (lame->lgf,
(short int *) (GST_BUFFER_DATA (buf)),
GST_BUFFER_SIZE (buf) / 4,
mp3_data, mp3_buffer_size);
}
else {
mp3_size = lame_encode_buffer (lame->lgf,
@ -702,6 +722,7 @@ gst_lame_chain (GstPad *pad, GstBuffer *buf)
if (eos) {
gst_pad_push (lame->srcpad, GST_BUFFER (gst_event_new (GST_EVENT_EOS)));
gst_element_set_eos (GST_ELEMENT (lame));
}
}
@ -778,11 +799,6 @@ gst_lame_change_state (GstElement *element)
GST_DEBUG (0,"state pending %d\n", GST_STATE_PENDING (element));
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
if (!gst_lame_setup (lame)) {
return GST_STATE_FAILURE;
}
break;
case GST_STATE_READY_TO_NULL:
if (lame->initialized) {
lame_close (lame->lgf);