Add TwoLAME MP2 encoding element, based on the LAME element.

Original commit message from CVS:
* configure.ac:
* ext/Makefile.am:
* ext/twolame/Makefile.am:
* ext/twolame/gsttwolame.c: (gst_two_lame_mode_get_type),
(gst_two_lame_padding_get_type), (gst_two_lame_emphasis_get_type),
(gst_two_lame_release_memory), (gst_two_lame_finalize),
(gst_two_lame_base_init), (gst_two_lame_class_init),
(gst_two_lame_src_setcaps), (gst_two_lame_sink_setcaps),
(gst_two_lame_init), (gst_two_lame_set_property),
(gst_two_lame_get_property), (gst_two_lame_sink_event),
(gst_two_lame_chain), (gst_two_lame_setup),
(gst_two_lame_change_state), (gst_two_lame_get_default_settings),
(plugin_init):
* ext/twolame/gsttwolame.h:
Add TwoLAME MP2 encoding element, based on the LAME element.

ChangeLog

@@ -1,3 +1,21 @@
+2008-08-02  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
+
+	* configure.ac:
+	* ext/Makefile.am:
+	* ext/twolame/Makefile.am:
+	* ext/twolame/gsttwolame.c: (gst_two_lame_mode_get_type),
+	(gst_two_lame_padding_get_type), (gst_two_lame_emphasis_get_type),
+	(gst_two_lame_release_memory), (gst_two_lame_finalize),
+	(gst_two_lame_base_init), (gst_two_lame_class_init),
+	(gst_two_lame_src_setcaps), (gst_two_lame_sink_setcaps),
+	(gst_two_lame_init), (gst_two_lame_set_property),
+	(gst_two_lame_get_property), (gst_two_lame_sink_event),
+	(gst_two_lame_chain), (gst_two_lame_setup),
+	(gst_two_lame_change_state), (gst_two_lame_get_default_settings),
+	(plugin_init):
+	* ext/twolame/gsttwolame.h:
+	Add TwoLAME MP2 encoding element, based on the LAME element.
+
 2008-08-02  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
 
 	* configure.ac:

configure.ac

@@ -972,6 +972,18 @@ AG_GST_CHECK_FEATURE(WILDMIDI, [wildmidi midi soft synth plugin], wildmidi, [
   AC_SUBST(WILDMIDI_LIBS)
 ])
 
+dnl *** twolame ***
+translit(dnm, m, l) AM_CONDITIONAL(USE_TWOLAME, true)
+AG_GST_CHECK_FEATURE(TWOLAME, [twolame], twolame, [
+  PKG_CHECK_MODULES(TWOLAME, twolame >= 0.3.0, [
+      HAVE_TWOLAME="yes"], [
+      HAVE_TWOLAME="no"
+      AC_MSG_RESULT(no)
+  ])
+  AC_SUBST(TWOLAME_CFLAGS)
+  AC_SUBST(TWOLAME_LIBS)
+])
+
 dnl *** SDL ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_SDL, true)
 AG_GST_CHECK_FEATURE(SDL, [SDL plug-in], sdlvideosink sdlaudiosink, [
@@ -1137,6 +1149,7 @@ AM_CONDITIONAL(USE_NAS, false)
 AM_CONDITIONAL(USE_NEON, false)
 AM_CONDITIONAL(USE_OFA, false)
 AM_CONDITIONAL(USE_OSS4, false)
+AM_CONDITIONAL(USE_TWOLAME, false)
 AM_CONDITIONAL(USE_SDL, false)
 AM_CONDITIONAL(USE_SNDFILE, false)
 AM_CONDITIONAL(USE_SOUNDTOUCH, false)
@@ -1290,6 +1303,7 @@ ext/mythtv/Makefile
 ext/neon/Makefile
 ext/ofa/Makefile
 ext/resindvd/Makefile
+ext/twolame/Makefile
 ext/sdl/Makefile
 ext/sndfile/Makefile
 ext/soundtouch/Makefile

ext/Makefile.am

@@ -222,6 +222,12 @@ TIMIDITY_DIR=
 endif
 endif
 
+if USE_TWOLAME
+TWOLAME_DIR=twolame
+else
+TWOLAME_DIR=
+endif
+
 # if USE_POLYP
 # POLYP_DIR=polyp
 # else
@@ -347,6 +353,7 @@ SUBDIRS=\
 	$(TARKIN_DIR) \
 	$(THEORA_DIR) \
 	$(TIMIDITY_DIR) \
+	$(TWOLAME_DIR) \
 	$(X264_DIR) \
 	$(XINE_DIR) \
 	$(XVID_DIR)

ext/twolame/Makefile.am

@@ -0,0 +1,8 @@
+plugin_LTLIBRARIES = libgsttwolame.la
+
+libgsttwolame_la_SOURCES = gsttwolame.c
+libgsttwolame_la_CFLAGS = $(GST_CFLAGS) $(TWOLAME_CFLAGS)
+libgsttwolame_la_LIBADD = $(TWOLAME_LIBS) $(GST_LIBS)
+libgsttwolame_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = gsttwolame.h

ext/twolame/gsttwolame.h

@@ -0,0 +1,95 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ * Copyright (C) <2008> Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_TWO_LAME_H__
+#define __GST_TWO_LAME_H__
+
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#include <twolame.h>
+
+#define GST_TYPE_TWO_LAME \
+  (gst_two_lame_get_type())
+#define GST_TWO_LAME(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TWO_LAME,GstTwoLame))
+#define GST_TWO_LAME_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TWO_LAME,GstTwoLameClass))
+#define GST_IS_TWO_LAME(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TWO_LAME))
+#define GST_IS_TWO_LAME_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TWO_LAME))
+
+typedef struct _GstTwoLame GstTwoLame;
+typedef struct _GstTwoLameClass GstTwoLameClass;
+
+/**
+ * GstTwoLame:
+ *
+ * Opaque data structure.
+ */
+struct _GstTwoLame {
+  GstElement element;
+
+  /*< private >*/
+  GstPad *srcpad, *sinkpad;
+
+  gint samplerate;
+  gint num_channels;
+  gboolean setup;
+
+  gint mode;
+  gint psymodel;
+  gint bitrate;
+  gint padding;
+  gboolean energy_level_extension;
+  gint emphasis;
+  gboolean error_protection;
+  gboolean copyright;
+  gboolean original;
+  gboolean vbr;
+  gfloat vbr_level;
+  gfloat ath_level;
+  gint vbr_max_bitrate;
+  gboolean quick_mode;
+  gint quick_mode_count;
+
+  /* track this so we don't send a last buffer in eos handler after error */
+  GstFlowReturn  last_flow;
+
+  twolame_options *glopts;
+
+  /* time tracker */
+  guint64 last_ts, last_offs, last_duration, eos_ts;
+};
+
+struct _GstTwoLameClass {
+  GstElementClass parent_class;
+};
+
+GType gst_two_lame_get_type(void);
+
+G_END_DECLS
+
+
+#endif /* __GST_TWO_LAME_H__ */