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-rw-r--r--plugins/audio-inline/audio-inline.c290
1 files changed, 290 insertions, 0 deletions
diff --git a/plugins/audio-inline/audio-inline.c b/plugins/audio-inline/audio-inline.c
new file mode 100644
index 0000000000..f2264b230b
--- /dev/null
+++ b/plugins/audio-inline/audio-inline.c
@@ -0,0 +1,290 @@
+/*
+ Copyright (C) 2004 Novell, Inc.
+ Author: Radek Doulik
+
+ */
+
+/* This file is licensed under the GNU GPL v2 or later */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <unistd.h> /* for unlink */
+#include <string.h>
+#include "e-util/e-icon-factory.h"
+#include "e-util/e-mktemp.h"
+#include "camel/camel-medium.h"
+#include "camel/camel-mime-part.h"
+#include "camel/camel-stream.h"
+#include "camel/camel-stream-fs.h"
+#include "mail/em-format-hook.h"
+#include "mail/em-format-html.h"
+#include "gtk/gtkbutton.h"
+#include "gtk/gtkbox.h"
+#include "gtk/gtkimage.h"
+#include "gtk/gtkhbbox.h"
+#include "gtkhtml/gtkhtml-embedded.h"
+#include "gst/gst.h"
+
+#define d(x) x
+
+void org_gnome_audio_inline_format (void *ep, EMFormatHookTarget *t);
+
+volatile static int org_gnome_audio_class_id_counter = 0;
+
+enum _org_gnome_audio_inline_button_type {
+ ORG_GNOME_AUDIO_INLINE_BUTTON_PLAY,
+ ORG_GNOME_AUDIO_INLINE_BUTTON_PAUSE,
+ ORG_GNOME_AUDIO_INLINE_BUTTON_STOP
+};
+
+struct _org_gnome_audio_inline_pobject {
+ EMFormatHTMLPObject object;
+
+ CamelMimePart *part;
+ char *filename;
+ GstElement *thread;
+};
+
+static void
+org_gnome_audio_inline_pobject_free (EMFormatHTMLPObject *o)
+{
+ struct _org_gnome_audio_inline_pobject *po = (struct _org_gnome_audio_inline_pobject *) o;
+
+ d(printf ("audio inline formatter: pobject free\n"));
+
+ if (po->part) {
+ camel_object_unref (po->part);
+ po->part = NULL;
+ }
+ if (po->filename) {
+ unlink (po->filename);
+ g_free (po->filename);
+ po->filename = NULL;
+ }
+ if (po->thread) {
+ gst_element_set_state (po->thread, GST_STATE_NULL);
+ gst_object_unref (GST_OBJECT (po->thread));
+ po->thread = NULL;
+ }
+}
+
+static void
+org_gnome_audio_inline_pause_clicked (GtkWidget *button, EMFormatHTMLPObject *pobject)
+{
+ struct _org_gnome_audio_inline_pobject *po = (struct _org_gnome_audio_inline_pobject *) pobject;
+
+ if (po->thread) {
+ /* start playing */
+ gst_element_set_state (po->thread, GST_STATE_PAUSED);
+ }
+}
+
+static void
+org_gnome_audio_inline_stop_clicked (GtkWidget *button, EMFormatHTMLPObject *pobject)
+{
+ struct _org_gnome_audio_inline_pobject *po = (struct _org_gnome_audio_inline_pobject *) pobject;
+
+ if (po->thread) {
+ /* start playing */
+ gst_element_set_state (po->thread, GST_STATE_READY);
+ }
+}
+
+static GstElement *
+org_gnome_audio_inline_gst_mpeg_thread (GstElement *filesrc)
+{
+ GstElement *thread, *decoder, *audiosink;
+
+ /* create a new thread to hold the elements */
+ thread = gst_thread_new ("org-gnome-audio-inline-mpeg-thread");
+
+ /* now it's time to get the decoder */
+ decoder = gst_element_factory_make ("mad", "decoder");
+
+ /* and an audio sink */
+ audiosink = gst_element_factory_make ("osssink", "play_audio");
+
+ /* add objects to the main pipeline */
+ gst_bin_add_many (GST_BIN (thread), filesrc, decoder, audiosink, NULL);
+
+ /* link src to sink */
+ gst_element_link_many (filesrc, decoder, audiosink, NULL);
+
+ return thread;
+}
+
+static GstElement *
+org_gnome_audio_inline_gst_ogg_thread (GstElement *filesrc)
+{
+ GstElement *thread, *demuxer, *decoder, *converter, *audiosink;
+
+ /* create a new thread to hold the elements */
+ thread = gst_thread_new ("org-gnome-audio-inline-mpeg-thread");
+
+ /* create an ogg demuxer */
+ demuxer = gst_element_factory_make ("oggdemux", "demuxer");
+ g_assert (demuxer != NULL);
+
+ /* create a vorbis decoder */
+ decoder = gst_element_factory_make ("vorbisdec", "decoder");
+ g_assert (decoder != NULL);
+
+ /* create an audio converter */
+ converter = gst_element_factory_make ("audioconvert", "converter");
+ g_assert (decoder != NULL);
+
+ /* and an audio sink */
+ audiosink = gst_element_factory_make ("osssink", "play_audio");
+ g_assert (audiosink != NULL);
+
+ /* add objects to the thread */
+ gst_bin_add_many (GST_BIN (thread), filesrc, demuxer, decoder, converter, audiosink, NULL);
+ /* link them in the logical order */
+ gst_element_link_many (filesrc, demuxer, decoder, converter, audiosink, NULL);
+
+ return thread;
+}
+
+static GstElement *
+org_gnome_audio_inline_gst_flac_thread (GstElement *filesrc)
+{
+ GstElement *thread, *decoder, *audiosink;
+
+ /* create a new thread to hold the elements */
+ thread = gst_thread_new ("org-gnome-audio-inline-flac-thread");
+
+ /* now it's time to get the decoder */
+ decoder = gst_element_factory_make ("flacdec", "decoder");
+
+ /* and an audio sink */
+ audiosink = gst_element_factory_make ("osssink", "play_audio");
+
+ /* add objects to the main pipeline */
+ gst_bin_add_many (GST_BIN (thread), filesrc, decoder, audiosink, NULL);
+
+ /* link src to sink */
+ gst_element_link_many (filesrc, decoder, audiosink, NULL);
+
+ return thread;
+}
+
+static void
+org_gnome_audio_inline_play_clicked (GtkWidget *button, EMFormatHTMLPObject *pobject)
+{
+ struct _org_gnome_audio_inline_pobject *po = (struct _org_gnome_audio_inline_pobject *) pobject;
+
+ d(printf ("audio inline formatter: play\n"));
+
+ if (!po->filename) {
+ CamelStream *stream;
+ CamelDataWrapper *data;
+ int argc = 1;
+ char *argv [] = { "org_gnome_audio_inline", NULL };
+
+ po->filename = e_mktemp ("org-gnome-audio-inline-file-XXXXXX");
+
+ d(printf ("audio inline formatter: write to temp file %s\n", po->filename));
+
+ stream = camel_stream_fs_new_with_name (po->filename, O_RDWR | O_CREAT | O_TRUNC, 0600);
+ data = camel_medium_get_content_object (CAMEL_MEDIUM (po->part));
+ camel_data_wrapper_decode_to_stream (data, stream);
+ camel_stream_flush (stream);
+ camel_object_unref (stream);
+
+ d(printf ("audio inline formatter: init gst thread\n"));
+
+ if (gst_init_check (&argc, &argv)) {
+ CamelContentType *type;
+ GstElement *filesrc;
+
+ /* create a disk reader */
+ filesrc = gst_element_factory_make ("filesrc", "disk_source");
+ g_object_set (G_OBJECT (filesrc), "location", po->filename, NULL);
+
+ type = camel_mime_part_get_content_type (po->part);
+ if (type) {
+ if (!strcasecmp (type->type, "audio")) {
+ if (!strcasecmp (type->subtype, "mpeg")) {
+ po->thread = org_gnome_audio_inline_gst_mpeg_thread (filesrc);
+ } else if (!strcasecmp (type->subtype, "x-flac")) {
+ po->thread = org_gnome_audio_inline_gst_flac_thread (filesrc);
+ }
+ } else if (!strcasecmp (type->type, "application")) {
+ if (!strcasecmp (type->subtype, "ogg")) {
+ po->thread = org_gnome_audio_inline_gst_ogg_thread (filesrc);
+ }
+ }
+ }
+ }
+ }
+
+ if (po->thread) {
+ /* start playing */
+ gst_element_set_state (po->thread, GST_STATE_PLAYING);
+
+ /* do whatever you want here, the thread will be playing */
+ g_print ("thread is playing\n");
+ }
+}
+
+static void
+org_gnome_audio_inline_add_button (GtkWidget *box, char *icon_name, GCallback cb, gpointer data)
+{
+ GtkWidget *icon, *button;
+ GdkPixbuf *pixbuf;
+
+ pixbuf = e_icon_factory_get_icon (icon_name, E_ICON_SIZE_LARGE_TOOLBAR);
+
+ icon = gtk_image_new_from_pixbuf (pixbuf);
+ g_object_unref (pixbuf);
+ gtk_widget_show (icon);
+
+ button = gtk_button_new ();
+ g_signal_connect (button, "clicked", cb, data);
+
+ gtk_container_add ((GtkContainer *) button, icon);
+ gtk_widget_show (button);
+ gtk_box_pack_end_defaults (GTK_BOX (box), button);
+}
+
+static gboolean
+org_gnome_audio_inline_button_panel (EMFormatHTML *efh, GtkHTMLEmbedded *eb, EMFormatHTMLPObject *pobject)
+{
+ GtkWidget *box;
+ struct _org_gnome_audio_inline_pobject *po = (struct _org_gnome_audio_inline_pobject *) pobject;
+
+ /* it is OK to call UI functions here, since we are called from UI thread */
+
+ box = gtk_hbutton_box_new ();
+ org_gnome_audio_inline_add_button (box, "stock_media-play", G_CALLBACK (org_gnome_audio_inline_play_clicked), po);
+ org_gnome_audio_inline_add_button (box, "stock_media-pause", G_CALLBACK (org_gnome_audio_inline_pause_clicked), po);
+ org_gnome_audio_inline_add_button (box, "stock_media-stop", G_CALLBACK (org_gnome_audio_inline_stop_clicked), po);
+
+ gtk_widget_show (box);
+ gtk_container_add ((GtkContainer *) eb, box);
+
+ return TRUE;
+}
+
+void
+org_gnome_audio_inline_format (void *ep, EMFormatHookTarget *t)
+{
+ struct _org_gnome_audio_inline_pobject *pobj;
+ char *classid = g_strdup_printf ("org-gnome-audio-inline-button-panel-%d", org_gnome_audio_class_id_counter);
+
+ org_gnome_audio_class_id_counter ++;
+
+ d(printf ("audio inline formatter: format classid %s\n", classid));
+
+ pobj = (struct _org_gnome_audio_inline_pobject *) em_format_html_add_pobject ((EMFormatHTML *) t->format, sizeof(*pobj), classid,
+ t->part, org_gnome_audio_inline_button_panel);
+ camel_object_ref (t->part);
+ pobj->part = t->part;
+ pobj->filename = NULL;
+ pobj->thread = NULL;
+ pobj->object.free = org_gnome_audio_inline_pobject_free;
+
+ camel_stream_printf (t->stream, "<object classid=%s></object>\n", classid);
+}
generated by cgit (git 2.34.1) at 2024-11-18 06:14:56 +0800