summaryrefslogtreecommitdiffstats
path: root/ext
diff options
context:
space:
mode:
authorStefan Kost <ensonic@users.sourceforge.net>2007-02-11 15:46:24 +0000
committerStefan Kost <ensonic@users.sourceforge.net>2007-02-11 15:46:24 +0000
commitba820cdc34f397f6afd2b1b1181672ba7b66bc0b (patch)
treede04db9a2af94089f5fc93ae2160e169e75cc22b /ext
parent711f00bb8870d86762b3735cb5aef727eee6e7c1 (diff)
downloadgst-plugins-bad-ba820cdc34f397f6afd2b1b1181672ba7b66bc0b.tar.gz
gst-plugins-bad-ba820cdc34f397f6afd2b1b1181672ba7b66bc0b.tar.bz2
gst-plugins-bad-ba820cdc34f397f6afd2b1b1181672ba7b66bc0b.zip
Add second midi renderer. Fix some double frees and leaks. Clean up logging.
Original commit message from CVS: * configure.ac: * ext/timidity/Makefile.am: * ext/timidity/gsttimidity.c: (plugin_init): * ext/timidity/gstwildmidi.c: (gst_wildmidi_base_init), (gst_wildmidi_class_init), (gst_wildmidi_init), (gst_wildmidi_src_convert), (gst_wildmidi_src_query), (gst_wildmidi_get_upstream_size), (gst_wildmidi_get_segment), (gst_wildmidi_get_new_segment_event), (gst_wildmidi_src_event), (gst_wildmidi_activate), (gst_wildmidi_activatepull), (gst_wildmidi_allocate_buffer), (gst_wildmidi_clip_buffer), (gst_wildmidi_fill_buffer), (gst_wildmidi_get_buffer), (gst_wildmidi_loop), (gst_wildmidi_change_state), (gst_wildmidi_set_property), (gst_wildmidi_get_property), (gst_wildmidi_typefind), (wildmidi_open_config), (plugin_init): * ext/timidity/gstwildmidi.h: Add second midi renderer. Fix some double frees and leaks. Clean up logging.
Diffstat (limited to 'ext')
-rw-r--r--ext/timidity/Makefile.am24
-rw-r--r--ext/timidity/gsttimidity.c8
-rw-r--r--ext/timidity/gstwildmidi.c880
-rw-r--r--ext/timidity/gstwildmidi.h88
4 files changed, 993 insertions, 7 deletions
diff --git a/ext/timidity/Makefile.am b/ext/timidity/Makefile.am
index a88aae32..7364def9 100644
--- a/ext/timidity/Makefile.am
+++ b/ext/timidity/Makefile.am
@@ -1,9 +1,8 @@
# plugindir is set in configure
+plugin_LTLIBRARIES =
-# change libgstplugin.la to something more suitable
-plugin_LTLIBRARIES = libgsttimidity.la
-
-# for the next set of variables, rename the prefix if you renamed the .la
+if USE_TIMIDITY
+plugin_LTLIBRARIES += libgsttimidity.la
# sources used to compile this plug-in
libgsttimidity_la_SOURCES = gsttimidity.c
@@ -15,3 +14,20 @@ libgsttimidity_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(TIMIDITY_LIBS)
libgsttimidity_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gsttimidity.h
+
+endif
+
+if USE_WILDMIDI
+plugin_LTLIBRARIES += libgstwildmidi.la
+
+# sources used to compile this plug-in
+libgstwildmidi_la_SOURCES = gstwildmidi.c
+
+# flags used to compile this plugin
+# add other _CFLAGS and _LIBS as needed
+libgstwildmidi_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) $(WILDMIDI_CFLAGS)
+libgstwildmidi_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(WILDMIDI_LIBS)
+libgstwildmidi_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = gstwildmidi.h
+endif
diff --git a/ext/timidity/gsttimidity.c b/ext/timidity/gsttimidity.c
index f8cc0af9..16e7de98 100644
--- a/ext/timidity/gsttimidity.c
+++ b/ext/timidity/gsttimidity.c
@@ -784,15 +784,17 @@ plugin_init (GstPlugin * plugin)
/* initialise timidity library, fail loading the plugin if this fails
* FIXME: check for config location during configure
*/
- if (mid_init ("/etc/timidity/timidity.cfg") != 0) {
- GST_WARNING ("can't initialize timidity, is it configured?");
+ if (mid_init (TIMIDITY_CFG) != 0) {
+ GST_WARNING ("can't initialize timidity with config: " TIMIDITY_CFG);
return FALSE;
}
if (!gst_type_find_register (plugin, "audio/midi", GST_RANK_PRIMARY,
gst_timidity_typefind, exts,
- gst_caps_new_simple ("audio/midi", NULL), NULL, NULL))
+ gst_caps_new_simple ("audio/midi", NULL), NULL, NULL)) {
+ GST_WARNING ("can't register typefind");
return FALSE;
+ }
return gst_element_register (plugin, "timidity",
GST_RANK_PRIMARY, GST_TYPE_TIMIDITY);
diff --git a/ext/timidity/gstwildmidi.c b/ext/timidity/gstwildmidi.c
new file mode 100644
index 00000000..9d830298
--- /dev/null
+++ b/ext/timidity/gstwildmidi.c
@@ -0,0 +1,880 @@
+/*
+ * gstwildmidi - wildmidi plugin for gstreamer
+ *
+ * Copyright 2007 Wouter Paesen <wouter@blue-gate.be>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#define WILDMIDI_RATE 44100
+#define WILDMIDI_BPS (2 * 2)
+
+#include <gst/gst.h>
+#include <string.h>
+#include <glib.h>
+#include <glib/gstdio.h>
+#include <unistd.h>
+
+#include "gstwildmidi.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_wildmidi_debug);
+#define GST_CAT_DEFAULT gst_wildmidi_debug
+
+static const GstElementDetails gst_wildmidi_details =
+GST_ELEMENT_DETAILS ("WildMidi",
+ "Codec/Decoder/Audio",
+ "Midi Synthesizer Element",
+ "Wouter Paesen <wouter@blue-gate.be>");
+
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0,
+ ARG_LINEAR_VOLUME,
+ ARG_HIGH_QUALITY,
+ /* FILL ME */
+};
+
+static void gst_wildmidi_base_init (gpointer g_class);
+static void gst_wildmidi_class_init (GstWildmidiClass * klass);
+
+static gboolean gst_wildmidi_src_event (GstPad * pad, GstEvent * event);
+static GstStateChangeReturn gst_wildmidi_change_state (GstElement * element,
+ GstStateChange transition);
+static gboolean gst_wildmidi_activate (GstPad * pad);
+static gboolean gst_wildmidi_activatepull (GstPad * pad, gboolean active);
+static void gst_wildmidi_loop (GstPad * sinkpad);
+static gboolean gst_wildmidi_src_query (GstPad * pad, GstQuery * query);
+
+static void gst_wildmidi_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_wildmidi_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/midi")
+ );
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw-int, "
+ "rate = (int) 44100, "
+ "channels = (int) 2, "
+ "endianness = (int) LITTLE_ENDIAN, "
+ "width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true"));
+
+GST_BOILERPLATE (GstWildmidi, gst_wildmidi, GstElement, GST_TYPE_ELEMENT);
+
+static void
+gst_wildmidi_base_init (gpointer gclass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_factory));
+ gst_element_class_set_details (element_class, &gst_wildmidi_details);
+}
+
+/* initialize the plugin's class */
+static void
+gst_wildmidi_class_init (GstWildmidiClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ gstelement_class->change_state = gst_wildmidi_change_state;
+ gobject_class->set_property = gst_wildmidi_set_property;
+ gobject_class->get_property = gst_wildmidi_get_property;
+
+ g_object_class_install_property (gobject_class, ARG_LINEAR_VOLUME,
+ g_param_spec_boolean ("linear-volume", "Linear volume",
+ "Linear volume", TRUE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (gobject_class, ARG_HIGH_QUALITY,
+ g_param_spec_boolean ("high-quality", "High Quality",
+ "High Quality", TRUE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+}
+
+/* initialize the new element
+ * instantiate pads and add them to element
+ * set functions
+ * initialize structure
+ */
+static void
+gst_wildmidi_init (GstWildmidi * filter, GstWildmidiClass * g_class)
+{
+ GstElementClass *klass = GST_ELEMENT_GET_CLASS (filter);
+
+ filter->sinkpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "sink"), "sink");
+
+ gst_pad_set_activatepull_function (filter->sinkpad,
+ gst_wildmidi_activatepull);
+ gst_pad_set_activate_function (filter->sinkpad, gst_wildmidi_activate);
+ gst_pad_set_setcaps_function (filter->sinkpad, gst_pad_set_caps);
+ gst_pad_use_fixed_caps (filter->sinkpad);
+ gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
+
+ filter->srcpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "src"), "src");
+
+ gst_pad_set_query_function (filter->srcpad, gst_wildmidi_src_query);
+ gst_pad_set_event_function (filter->srcpad, gst_wildmidi_src_event);
+ gst_pad_use_fixed_caps (filter->srcpad);
+ gst_pad_set_setcaps_function (filter->srcpad, gst_pad_set_caps);
+
+ gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
+
+ gst_segment_init (filter->o_segment, GST_FORMAT_DEFAULT);
+
+ filter->bytes_per_frame = WILDMIDI_BPS;
+ filter->time_per_frame = GST_SECOND / WILDMIDI_RATE;
+}
+
+static gboolean
+gst_wildmidi_src_convert (GstWildmidi * wildmidi,
+ GstFormat src_format, gint64 src_value,
+ GstFormat * dest_format, gint64 * dest_value)
+{
+ gboolean res = TRUE;
+ gint64 frames;
+
+ if (src_format == *dest_format) {
+ *dest_value = src_value;
+ goto done;
+ }
+
+ switch (src_format) {
+ case GST_FORMAT_TIME:
+ frames = src_value / wildmidi->time_per_frame;
+ break;
+ case GST_FORMAT_BYTES:
+ frames = src_value / (wildmidi->bytes_per_frame);
+ break;
+ case GST_FORMAT_DEFAULT:
+ frames = src_value;
+ break;
+ default:
+ res = FALSE;
+ goto done;
+ }
+
+ switch (*dest_format) {
+ case GST_FORMAT_TIME:
+ *dest_value = frames * wildmidi->time_per_frame;
+ break;
+ case GST_FORMAT_BYTES:
+ *dest_value = frames * wildmidi->bytes_per_frame;
+ break;
+ case GST_FORMAT_DEFAULT:
+ *dest_value = frames;
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+
+done:
+ return res;
+}
+
+static gboolean
+gst_wildmidi_src_query (GstPad * pad, GstQuery * query)
+{
+ gboolean res = TRUE;
+ GstWildmidi *wildmidi = GST_WILDMIDI (gst_pad_get_parent (pad));
+ GstFormat src_format, dst_format;
+ gint64 src_value, dst_value;
+
+ if (!wildmidi->song) {
+ gst_object_unref (wildmidi);
+ return FALSE;
+ }
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_DURATION:
+ gst_query_set_duration (query, GST_FORMAT_TIME,
+ wildmidi->o_len * wildmidi->time_per_frame);
+ break;
+ case GST_QUERY_POSITION:
+ gst_query_set_position (query, GST_FORMAT_TIME,
+ wildmidi->o_segment->last_stop * wildmidi->time_per_frame);
+ break;
+ case GST_QUERY_CONVERT:
+ gst_query_parse_convert (query, &src_format, &src_value,
+ &dst_format, NULL);
+
+ res =
+ gst_wildmidi_src_convert (wildmidi, src_format, src_value,
+ &dst_format, &dst_value);
+ if (res)
+ gst_query_set_convert (query, src_format, src_value, dst_format,
+ dst_value);
+
+ break;
+ case GST_QUERY_FORMATS:
+ gst_query_set_formats (query, 3,
+ GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT);
+ break;
+ case GST_QUERY_SEGMENT:
+ gst_query_set_segment (query, wildmidi->o_segment->rate,
+ wildmidi->o_segment->format, wildmidi->o_segment->start,
+ wildmidi->o_segment->stop);
+ break;
+ case GST_QUERY_SEEKING:
+ gst_query_set_seeking (query, wildmidi->o_segment->format,
+ TRUE, 0, wildmidi->o_len);
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+
+ gst_object_unref (wildmidi);
+ return res;
+}
+
+static gboolean
+gst_wildmidi_get_upstream_size (GstWildmidi * wildmidi, gint64 * size)
+{
+ GstFormat format = GST_FORMAT_BYTES;
+ gboolean res = FALSE;
+ GstPad *peer = gst_pad_get_peer (wildmidi->sinkpad);
+
+ if (peer != NULL)
+ res = gst_pad_query_duration (peer, &format, size) && *size >= 0;
+
+ gst_object_unref (peer);
+ return res;
+}
+
+static GstSegment *
+gst_wildmidi_get_segment (GstWildmidi * wildmidi, GstFormat format,
+ gboolean update)
+{
+ gint64 start, stop, time;
+
+ GstSegment *segment = gst_segment_new ();
+
+ gst_wildmidi_src_convert (wildmidi,
+ wildmidi->o_segment->format, wildmidi->o_segment->start, &format, &start);
+
+ if (wildmidi->o_segment->stop == GST_CLOCK_TIME_NONE) {
+ stop = GST_CLOCK_TIME_NONE;
+ } else {
+ gst_wildmidi_src_convert (wildmidi,
+ wildmidi->o_segment->format, wildmidi->o_segment->stop, &format, &stop);
+ }
+
+ gst_wildmidi_src_convert (wildmidi,
+ wildmidi->o_segment->format, wildmidi->o_segment->time, &format, &time);
+
+ gst_segment_set_newsegment_full (segment, update,
+ wildmidi->o_segment->rate, wildmidi->o_segment->applied_rate,
+ format, start, stop, time);
+
+ segment->last_stop = time;
+
+ return segment;
+}
+
+static GstEvent *
+gst_wildmidi_get_new_segment_event (GstWildmidi * wildmidi, GstFormat format,
+ gboolean update)
+{
+ GstSegment *segment;
+ GstEvent *event;
+
+ segment = gst_wildmidi_get_segment (wildmidi, format, update);
+
+ event = gst_event_new_new_segment_full (update,
+ segment->rate, segment->applied_rate, segment->format,
+ segment->start, segment->stop, segment->time);
+
+ gst_segment_free (segment);
+
+ return event;
+}
+
+static gboolean
+gst_wildmidi_src_event (GstPad * pad, GstEvent * event)
+{
+ gboolean res = FALSE;
+ GstWildmidi *wildmidi = GST_WILDMIDI (gst_pad_get_parent (pad));
+
+ GST_DEBUG_OBJECT (pad, "%s event received", GST_EVENT_TYPE_NAME (event));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+ {
+ gdouble rate;
+ GstFormat src_format, dst_format;
+ GstSeekFlags flags;
+ GstSeekType start_type, stop_type;
+ gint64 orig_start, start, stop;
+ gboolean flush, update;
+
+ if (!wildmidi->song)
+ break;
+
+ gst_event_parse_seek (event, &rate, &src_format, &flags,
+ &start_type, &orig_start, &stop_type, &stop);
+
+ dst_format = GST_FORMAT_DEFAULT;
+
+ gst_wildmidi_src_convert (wildmidi, src_format, orig_start,
+ &dst_format, &start);
+ gst_wildmidi_src_convert (wildmidi, src_format, stop, &dst_format, &stop);
+
+ flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
+
+ if (flush) {
+ GST_DEBUG ("performing flush");
+ gst_pad_push_event (wildmidi->srcpad, gst_event_new_flush_start ());
+ } else {
+ gst_pad_stop_task (wildmidi->sinkpad);
+ }
+
+ GST_PAD_STREAM_LOCK (wildmidi->sinkpad);
+
+ if (flush) {
+ gst_pad_push_event (wildmidi->srcpad, gst_event_new_flush_stop ());
+ }
+
+ gst_segment_set_seek (wildmidi->o_segment, rate, dst_format, flags,
+ start_type, start, stop_type, stop, &update);
+
+ if ((flags && GST_SEEK_FLAG_SEGMENT) == GST_SEEK_FLAG_SEGMENT) {
+ GST_DEBUG_OBJECT (wildmidi, "received segment seek %d, %d",
+ (gint) start_type, (gint) stop_type);
+ } else {
+ GST_DEBUG_OBJECT (wildmidi, "received normal seek %d",
+ (gint) start_type);
+ update = FALSE;
+ }
+
+ gst_pad_push_event (wildmidi->srcpad,
+ gst_wildmidi_get_new_segment_event (wildmidi, GST_FORMAT_TIME,
+ update));
+
+ wildmidi->o_seek = TRUE;
+
+ gst_pad_start_task (wildmidi->sinkpad,
+ (GstTaskFunction) gst_wildmidi_loop, wildmidi->sinkpad);
+
+ GST_PAD_STREAM_UNLOCK (wildmidi->sinkpad);
+ GST_DEBUG ("seek done");
+ }
+ res = TRUE;
+ break;
+ default:
+ break;
+ }
+
+ g_object_unref (wildmidi);
+ return res;
+}
+
+static gboolean
+gst_wildmidi_activate (GstPad * sinkpad)
+{
+ if (gst_pad_check_pull_range (sinkpad))
+ return gst_pad_activate_pull (sinkpad, TRUE);
+
+ return FALSE;
+}
+
+static gboolean
+gst_wildmidi_activatepull (GstPad * pad, gboolean active)
+{
+ if (active) {
+ return gst_pad_start_task (pad, (GstTaskFunction) gst_wildmidi_loop, pad);
+ } else {
+ return gst_pad_stop_task (pad);
+ }
+}
+
+static GstBuffer *
+gst_wildmidi_allocate_buffer (GstWildmidi * wildmidi, gint64 samples)
+{
+ return gst_buffer_new_and_alloc (samples * wildmidi->bytes_per_frame);
+}
+
+static GstBuffer *
+gst_wildmidi_clip_buffer (GstWildmidi * wildmidi, GstBuffer * buffer)
+{
+ gint64 new_start, new_stop;
+ gint64 offset, length;
+ GstBuffer *out;
+
+ return buffer;
+
+ if (!gst_segment_clip (wildmidi->o_segment, GST_FORMAT_DEFAULT,
+ GST_BUFFER_OFFSET (buffer), GST_BUFFER_OFFSET_END (buffer),
+ &new_start, &new_stop)) {
+ gst_buffer_unref (buffer);
+ return NULL;
+ }
+
+ if (GST_BUFFER_OFFSET (buffer) == new_start &&
+ GST_BUFFER_OFFSET_END (buffer) == new_stop)
+ return buffer;
+
+ offset = new_start - GST_BUFFER_OFFSET (buffer);
+ length = new_stop - new_start;
+
+ out = gst_buffer_create_sub (buffer, offset * wildmidi->bytes_per_frame,
+ length * wildmidi->bytes_per_frame);
+
+ GST_BUFFER_OFFSET (out) = new_start;
+ GST_BUFFER_OFFSET_END (out) = new_stop;
+ GST_BUFFER_TIMESTAMP (out) = new_start * wildmidi->time_per_frame;
+ GST_BUFFER_DURATION (out) = (new_stop - new_start) * wildmidi->time_per_frame;
+
+ gst_buffer_unref (buffer);
+
+ return out;
+}
+
+/* generate audio data and advance internal timers */
+static GstBuffer *
+gst_wildmidi_fill_buffer (GstWildmidi * wildmidi, GstBuffer * buffer)
+{
+ size_t bytes_read;
+ gint64 samples;
+
+ bytes_read =
+ WildMidi_GetOutput (wildmidi->song, (char *) GST_BUFFER_DATA (buffer),
+ (unsigned long int) GST_BUFFER_SIZE (buffer));
+
+ if (bytes_read == 0) {
+ gst_buffer_unref (buffer);
+ return NULL;
+ }
+
+ GST_BUFFER_OFFSET (buffer) =
+ wildmidi->o_segment->last_stop * wildmidi->bytes_per_frame;
+ GST_BUFFER_TIMESTAMP (buffer) =
+ wildmidi->o_segment->last_stop * wildmidi->time_per_frame;
+
+ if (bytes_read < GST_BUFFER_SIZE (buffer)) {
+ GstBuffer *old = buffer;
+
+ buffer = gst_buffer_create_sub (buffer, 0, bytes_read);
+ gst_buffer_unref (old);
+ }
+
+ samples = GST_BUFFER_SIZE (buffer) / wildmidi->bytes_per_frame;
+
+ wildmidi->o_segment->last_stop += samples;
+
+ GST_BUFFER_OFFSET_END (buffer) =
+ wildmidi->o_segment->last_stop * wildmidi->bytes_per_frame;
+ GST_BUFFER_DURATION (buffer) = samples * wildmidi->time_per_frame;
+
+ GST_DEBUG_OBJECT (wildmidi,
+ "generated buffer %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT
+ " (%d samples)",
+ GST_TIME_ARGS ((guint64) GST_BUFFER_TIMESTAMP (buffer)),
+ GST_TIME_ARGS (((guint64) (GST_BUFFER_TIMESTAMP (buffer) +
+ GST_BUFFER_DURATION (buffer)))), samples);
+
+ return buffer;
+}
+
+static GstBuffer *
+gst_wildmidi_get_buffer (GstWildmidi * wildmidi)
+{
+ GstBuffer *out;
+
+ out =
+ gst_wildmidi_fill_buffer (wildmidi,
+ gst_wildmidi_allocate_buffer (wildmidi, 256));
+
+ if (!out)
+ return NULL;
+
+ return gst_wildmidi_clip_buffer (wildmidi, out);
+}
+
+static void
+gst_wildmidi_loop (GstPad * sinkpad)
+{
+ GstWildmidi *wildmidi = GST_WILDMIDI (GST_PAD_PARENT (sinkpad));
+ GstBuffer *out;
+ GstFlowReturn ret;
+
+ if (wildmidi->mididata_size == 0) {
+ if (!gst_wildmidi_get_upstream_size (wildmidi, &wildmidi->mididata_size)) {
+ GST_ELEMENT_ERROR (wildmidi, STREAM, DECODE, (NULL),
+ ("Unable to get song length"));
+ goto paused;
+ }
+
+ if (wildmidi->mididata)
+ free (wildmidi->mididata);
+
+ wildmidi->mididata = malloc (wildmidi->mididata_size);
+ wildmidi->mididata_offset = 0;
+ return;
+ }
+
+ if (wildmidi->mididata_offset < wildmidi->mididata_size) {
+ GstBuffer *buffer;
+ gint64 size;
+
+ GST_DEBUG_OBJECT (wildmidi, "loading song");
+
+ ret =
+ gst_pad_pull_range (wildmidi->sinkpad, wildmidi->mididata_offset,
+ -1, &buffer);
+ if (ret != GST_FLOW_OK) {
+ GST_ELEMENT_ERROR (wildmidi, STREAM, DECODE, (NULL),
+ ("Unable to load song"));
+ goto paused;
+ }
+
+ size = wildmidi->mididata_size - wildmidi->mididata_offset;
+ if (GST_BUFFER_SIZE (buffer) < size)
+ size = GST_BUFFER_SIZE (buffer);
+
+ memmove (wildmidi->mididata + wildmidi->mididata_offset,
+ GST_BUFFER_DATA (buffer), size);
+ gst_buffer_unref (buffer);
+
+ wildmidi->mididata_offset += size;
+ GST_DEBUG_OBJECT (wildmidi, "Song loaded");
+ return;
+ }
+
+ if (!wildmidi->song) {
+ struct _WM_Info *info;
+
+ GST_DEBUG_OBJECT (wildmidi, "Parsing song");
+
+ /* this method takes our memory block */
+ wildmidi->song =
+ WildMidi_OpenBuffer ((unsigned char *) wildmidi->mididata,
+ wildmidi->mididata_size);
+ wildmidi->mididata_size = 0;
+ wildmidi->mididata = NULL;
+
+ if (!wildmidi->song) {
+ GST_ELEMENT_ERROR (wildmidi, STREAM, DECODE, (NULL),
+ ("Unable to parse midi"));
+ goto paused;
+ }
+
+ WildMidi_LoadSamples (wildmidi->song);
+
+ WildMidi_SetOption (wildmidi->song, WM_MO_LINEAR_VOLUME,
+ wildmidi->linear_volume);
+ WildMidi_SetOption (wildmidi->song, WM_MO_EXPENSIVE_INTERPOLATION,
+ wildmidi->high_quality);
+
+ info = WildMidi_GetInfo (wildmidi->song);
+ wildmidi->o_len = info->approx_total_samples;
+
+ gst_segment_set_newsegment (wildmidi->o_segment, FALSE, 1.0,
+ GST_FORMAT_DEFAULT, 0, GST_CLOCK_TIME_NONE, 0);
+
+ gst_pad_push_event (wildmidi->srcpad,
+ gst_wildmidi_get_new_segment_event (wildmidi, GST_FORMAT_TIME, FALSE));
+
+ GST_DEBUG_OBJECT (wildmidi, "Parsing song done");
+ return;
+ }
+
+ if (wildmidi->o_segment_changed) {
+ GST_DEBUG_OBJECT (wildmidi, "segment changed");
+
+ GstSegment *segment = gst_wildmidi_get_segment (wildmidi, GST_FORMAT_TIME,
+ !wildmidi->o_new_segment);
+
+ GST_LOG_OBJECT (wildmidi,
+ "sending newsegment from %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT
+ ", pos=%" GST_TIME_FORMAT, GST_TIME_ARGS ((guint64) segment->start),
+ GST_TIME_ARGS ((guint64) segment->stop),
+ GST_TIME_ARGS ((guint64) segment->time));
+
+ if (wildmidi->o_segment->flags & GST_SEEK_FLAG_SEGMENT) {
+ gst_element_post_message (GST_ELEMENT (wildmidi),
+ gst_message_new_segment_start (GST_OBJECT (wildmidi),
+ segment->format, segment->start));
+ }
+
+ gst_segment_free (segment);
+ wildmidi->o_segment_changed = FALSE;
+ return;
+ }
+
+ if (wildmidi->o_seek) {
+ unsigned long int sample;
+
+ /* perform a seek internally */
+ sample = wildmidi->o_segment->time;
+
+ if (wildmidi->accurate_seek) {
+ WildMidi_SampledSeek (wildmidi->song, &sample);
+ } else {
+ WildMidi_FastSeek (wildmidi->song, &sample);
+ }
+
+ wildmidi->o_segment->last_stop = wildmidi->o_segment->time = sample;
+ }
+
+ out = gst_wildmidi_get_buffer (wildmidi);
+ if (!out) {
+ GST_LOG_OBJECT (wildmidi, "Song ended, generating eos");
+ gst_pad_push_event (wildmidi->srcpad, gst_event_new_eos ());
+ wildmidi->o_seek = FALSE;
+ goto paused;
+ }
+
+ if (wildmidi->o_seek) {
+ GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DISCONT);
+ wildmidi->o_seek = FALSE;
+ }
+
+ gst_buffer_set_caps (out, wildmidi->out_caps);
+ ret = gst_pad_push (wildmidi->srcpad, out);
+
+ if (ret == GST_FLOW_OK)
+ return;
+
+ if (GST_FLOW_IS_FATAL (ret)) {
+ GST_ELEMENT_ERROR (wildmidi, STREAM, FAILED,
+ ("Internal data stream error XXX"),
+ ("Streaming stopped, reason %s", gst_flow_get_name (ret)));
+ }
+
+paused:
+ GST_LOG_OBJECT (wildmidi, "pausing task");
+ gst_pad_pause_task (wildmidi->sinkpad);
+}
+
+static GstStateChangeReturn
+gst_wildmidi_change_state (GstElement * element, GstStateChange transition)
+{
+ GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
+ GstWildmidi *wildmidi = GST_WILDMIDI (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ wildmidi->out_caps =
+ gst_caps_copy (gst_pad_get_pad_template_caps (wildmidi->srcpad));
+ wildmidi->mididata = NULL;
+ break;
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ wildmidi->mididata_size = 0;
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ if (wildmidi->song)
+ WildMidi_Close (wildmidi->song);
+ wildmidi->song = NULL;
+ if (wildmidi->mididata)
+ free (wildmidi->mididata);
+ wildmidi->mididata = NULL;
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ gst_caps_unref (wildmidi->out_caps);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static void
+gst_wildmidi_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstWildmidi *wildmidi;
+
+ g_return_if_fail (GST_IS_WILDMIDI (object));
+
+ wildmidi = GST_WILDMIDI (object);
+
+ switch (prop_id) {
+ case ARG_LINEAR_VOLUME:
+ wildmidi->linear_volume = g_value_get_boolean (value);
+ if (wildmidi->song)
+ WildMidi_SetOption (wildmidi->song, WM_MO_LINEAR_VOLUME,
+ wildmidi->linear_volume);
+ break;
+ case ARG_HIGH_QUALITY:
+ wildmidi->high_quality = g_value_get_boolean (value);
+ if (wildmidi->song)
+ WildMidi_SetOption (wildmidi->song, WM_MO_EXPENSIVE_INTERPOLATION,
+ wildmidi->high_quality);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_wildmidi_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstWildmidi *wildmidi;
+
+ g_return_if_fail (GST_IS_WILDMIDI (object));
+
+ wildmidi = GST_WILDMIDI (object);
+
+ switch (prop_id) {
+ case ARG_LINEAR_VOLUME:
+ g_value_set_boolean (value, wildmidi->linear_volume);
+ break;
+ case ARG_HIGH_QUALITY:
+ g_value_set_boolean (value, wildmidi->high_quality);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/*
+ * http://jedi.ks.uiuc.edu/~johns/links/music/midifile.html
+ */
+static void
+gst_wildmidi_typefind (GstTypeFind * tf, gpointer _data)
+{
+ guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+ if (data && data[0] == 'M' && data[1] == 'T' && data[2] == 'h'
+ && data[3] == 'd') {
+ gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM,
+ gst_caps_new_simple ("audio/midi", NULL));
+ }
+}
+
+static gboolean
+wildmidi_open_config ()
+{
+ gchar *path = g_strdup (g_getenv ("WILDMIDI_CFG"));
+ gint ret;
+
+ GST_DEBUG ("trying %s", path);
+ if (path && (g_access (path, R_OK) == -1)) {
+ g_free (path);
+ path = NULL;
+ }
+
+ if (path == NULL) {
+ path =
+ g_build_path (G_DIR_SEPARATOR_S, g_get_home_dir (), ".wildmidirc",
+ NULL);
+ GST_DEBUG ("trying %s", path);
+ if (path && (g_access (path, R_OK) == -1)) {
+ g_free (path);
+ path = NULL;
+ }
+ }
+
+ if (path == NULL) {
+ path = g_build_path (G_DIR_SEPARATOR_S, "/etc", "wildmidi.cfg", NULL);
+ GST_DEBUG ("trying %s", path);
+ if (path && (g_access (path, R_OK) == -1)) {
+ g_free (path);
+ path = NULL;
+ }
+ }
+
+ if (path == NULL) {
+ /* I've created a symlink to get it playing
+ * ln -s /usr/share/timidity/timidity.cfg /etc/wildmidi.cfg
+ * we could make it use : TIMIDITY_CFG
+ * but unfortunately it fails to create a proper filename if the config
+ * has a redirect
+ * http://sourceforge.net/tracker/index.php?func=detail&aid=1657358&group_id=42635&atid=433744
+ */
+ GST_INFO ("no config file");
+ return FALSE;
+ }
+
+ ret = WildMidi_Init (path, WILDMIDI_RATE, 0);
+ g_free (path);
+
+ return (ret == 0);
+}
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+ static gchar *exts[] = { "mid", "midi", NULL };
+ /* exchange the strings 'plugin' and 'Template plugin' with your
+ * plugin name and description */
+ GST_DEBUG_CATEGORY_INIT (gst_wildmidi_debug, "wildmidi",
+ 0, "Wildmidi plugin");
+
+ /* initialise wildmidi library, fail loading the plugin if this fails */
+ if (!wildmidi_open_config ()) {
+ GST_WARNING ("can't initialize wildmidi");
+ return FALSE;
+ }
+
+ if (!gst_type_find_register (plugin, "audio/midi", GST_RANK_SECONDARY,
+ gst_wildmidi_typefind, exts,
+ gst_caps_new_simple ("audio/midi", NULL), NULL, NULL)) {
+ GST_WARNING ("can't register typefind");
+ return FALSE;
+ }
+
+ return gst_element_register (plugin, "wildmidi",
+ GST_RANK_SECONDARY, GST_TYPE_WILDMIDI);
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "wildmidi",
+ "Wildmidi Plugin",
+ plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")
diff --git a/ext/timidity/gstwildmidi.h b/ext/timidity/gstwildmidi.h
new file mode 100644
index 00000000..ecaeea6e
--- /dev/null
+++ b/ext/timidity/gstwildmidi.h
@@ -0,0 +1,88 @@
+/*
+ * gsttimdity - timidity plugin for gstreamer
+ *
+ * Copyright 2007 Wouter Paesen <wouter@blue-gate.be>
+ *
+ * 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.
+ *
+ * Wrapper element for libtimidity. This element works in pull
+ * based mode because that's essentially how libwildmidi works.
+ * We create a libwildmidi stream that operates on the srcpad.
+ * The sinkpad is in pull mode.
+ */
+
+#ifndef __GST_WILDMIDI_H__
+#define __GST_WILDMIDI_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstadapter.h>
+#include <wildmidi_lib.h>
+
+G_BEGIN_DECLS
+#define GST_TYPE_WILDMIDI \
+ (gst_wildmidi_get_type())
+#define GST_WILDMIDI(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WILDMIDI,GstWildmidi))
+#define GST_WILDMIDI_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WILDMIDI,GstWildmidiClass))
+#define GST_IS_WILDMIDI(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WILDMIDI))
+#define GST_IS_WILDMIDI_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WILDMIDI))
+typedef struct _GstWildmidi GstWildmidi;
+typedef struct _GstWildmidiClass GstWildmidiClass;
+
+struct _GstWildmidi
+{
+ GstElement element;
+
+ GstPad *sinkpad, *srcpad;
+
+ /* input stream properties */
+ gint64 mididata_size, mididata_offset;
+ gchar *mididata;
+ gboolean mididata_filled;
+
+ midi *song;
+
+ /* output data */
+ gboolean o_new_segment, o_segment_changed, o_seek;
+ GstSegment o_segment[1];
+ gint64 o_len;
+
+ /* format of the stream */
+ gint64 bytes_per_frame;
+ GstClockTime time_per_frame;
+
+ /* options */
+ gboolean accurate_seek;
+
+ /* wildmidi settings */
+ gboolean high_quality;
+ gboolean linear_volume;
+
+ GstCaps *out_caps;
+};
+
+struct _GstWildmidiClass
+{
+ GstElementClass parent_class;
+};
+
+GType gst_wildmidi_get_type (void);
+
+G_END_DECLS
+#endif /* __GST_WILDMIDI_H__ */