From d93eb7d4364e8c7cfc108a3bdcf214a6f7d01946 Mon Sep 17 00:00:00 2001 From: Wim Taymans Date: Tue, 19 Feb 2002 17:29:55 +0000 Subject: [PATCH] Added event handling. Original commit message from CVS: Added event handling. Fix flush Fix state change. Convert to gobject deep_notify --- ext/lame/gstlame.c | 62 ++++++++++++++++++++++++++++++++++-------------------- 1 file changed, 39 insertions(+), 23 deletions(-) diff --git a/ext/lame/gstlame.c b/ext/lame/gstlame.c index 2cd83ca..89e1090 100644 --- a/ext/lame/gstlame.c +++ b/ext/lame/gstlame.c @@ -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); -- 2.7.4