gstreamer/ext/shout2/gstshout2.c

/* GStreamer
 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
 *
 * 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
#include "gstshout2.h"
#include <stdlib.h>
#include <string.h>

/* elementfactory information */
static GstElementDetails shout2send_details = {
  "An Icecast plugin",
  "Sink/Network",
  "Sends data to an icecast server",
  "Wim Taymans <wim.taymans@chello.be>\n"
  "Pedro Corte-Real <typo@netcabo.pt>"
};

unsigned int audio_format = 100;

/* Shout2send signals and args */
enum {
  /* FILL ME */
  LAST_SIGNAL
};

enum {
  ARG_0,
  ARG_IP,          /* the ip of the server */
  ARG_PORT,        /* the encoder port number on the server */
  ARG_PASSWORD,    /* the encoder password on the server */
  ARG_PUBLIC,      /* is this stream public? */
  ARG_NAME,        /* Name of the stream */
  ARG_DESCRIPTION, /* Description of the stream */
  ARG_GENRE,       /* Genre of the stream */

  ARG_PROTOCOL,    /* Protocol to connect with */

  ARG_MOUNT,       /* mountpoint of stream (icecast only) */
  ARG_URL,         /* Url of stream (I'm guessing) */
};

static GstPadTemplate*
sink_template_factory (void)
{
  static GstPadTemplate *template = NULL;
  
  if (!template) {
    template = gst_pad_template_new (
      "sink",
      GST_PAD_SINK,
      GST_PAD_ALWAYS,
      gst_caps_new (
        "shout2send_sink",
        "application/ogg",
	NULL),
      gst_caps_new (
        "shout2send_sink",
        "audio/mpeg",
	gst_props_new (
	  "layer", GST_PROPS_INT_RANGE (1, 3),
	  NULL
	)),
      NULL);
  }

  return template;
}

static void			gst_shout2send_class_init	(GstShout2sendClass *klass);
static void			gst_shout2send_base_init	(GstShout2sendClass *klass);
static void			gst_shout2send_init		(GstShout2send *shout2send);

static void			gst_shout2send_chain		(GstPad *pad, GstData *_data);
static GstPadLinkReturn      gst_shout2send_connect         (GstPad *pad, GstCaps *caps);

static void			gst_shout2send_set_property		(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void			gst_shout2send_get_property		(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);

static GstElementStateReturn	gst_shout2send_change_state	(GstElement *element);

static GstElementClass *parent_class = NULL;
/*static guint gst_shout2send_signals[LAST_SIGNAL] = { 0 }; */

#define GST_TYPE_SHOUT_PROTOCOL (gst_shout2send_protocol_get_type())
static GType
gst_shout2send_protocol_get_type (void) 
{
  static GType shout2send_protocol_type = 0;
  static GEnumValue shout2send_protocol[] = {
    { SHOUT2SEND_PROTOCOL_ICE, 	      "1", "Ice Protocol"},
    { SHOUT2SEND_PROTOCOL_XAUDIOCAST, "2", "Xaudiocast Protocol (icecast 1.3.x)"},
    { SHOUT2SEND_PROTOCOL_ICY, 	      "3", "Icy Protocol (ShoutCast)"},
    { SHOUT2SEND_PROTOCOL_HTTP,       "4", "Http Protocol (icecast 2.x)"},
    {0, NULL, NULL},
  };
  if (!shout2send_protocol_type) {
    shout2send_protocol_type = g_enum_register_static ("GstShout2SendProtocol", shout2send_protocol);
  }
  return shout2send_protocol_type;
}

GType
gst_shout2send_get_type(void)
{
  static GType shout2send_type = 0;

  if (!shout2send_type) {
    static const GTypeInfo shout2send_info = {
      sizeof(GstShout2sendClass),
      (GBaseInitFunc)gst_shout2send_base_init,
      NULL,
      (GClassInitFunc)gst_shout2send_class_init,
      NULL,
      NULL,
      sizeof(GstShout2send),
      0,
      (GInstanceInitFunc)gst_shout2send_init,
    };
    shout2send_type = g_type_register_static(GST_TYPE_ELEMENT, "GstShout2send", &shout2send_info, 0);
  }
  return shout2send_type;
}

static void
gst_shout2send_base_init (GstShout2sendClass *klass)
{
  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);

  gst_element_class_add_pad_template (element_class, sink_template_factory());
  gst_element_class_set_details (element_class, &shout2send_details);
}

static void
gst_shout2send_class_init (GstShout2sendClass *klass)
{
  GObjectClass *gobject_class;
  GstElementClass *gstelement_class;

  gobject_class = (GObjectClass*)klass;
  gstelement_class = (GstElementClass*)klass;

  parent_class = g_type_class_ref(GST_TYPE_ELEMENT);

  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_IP,
    g_param_spec_string("ip","ip","ip",
                        NULL, G_PARAM_READWRITE)); /* CHECKME */
  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PORT,
    g_param_spec_int("port","port","port",
                     1,G_MAXUSHORT,8000,G_PARAM_READWRITE)); /* CHECKME */

  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PASSWORD,
    g_param_spec_string("password","password","password",
                        NULL, G_PARAM_READWRITE)); /* CHECKME */

  /* metadata */
  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NAME,
    g_param_spec_string("name","name","name",
                        NULL, G_PARAM_READWRITE)); /* CHECKME */

  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DESCRIPTION,
    g_param_spec_string("description","description","description",
                        NULL, G_PARAM_READWRITE)); /* CHECKME */

  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_GENRE,
    g_param_spec_string("genre","genre","genre",
                        NULL, G_PARAM_READWRITE)); /* CHECKME */

  g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PROTOCOL,
    g_param_spec_enum ("protocol", "protocol", "Connection Protocol to use",
                       GST_TYPE_SHOUT_PROTOCOL, SHOUT2SEND_PROTOCOL_HTTP, G_PARAM_READWRITE)); 


  /* icecast only */
  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MOUNT,
    g_param_spec_string("mount","mount","mount",
                        NULL, G_PARAM_READWRITE)); /* CHECKME */

  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_URL,
    g_param_spec_string("url","url","url",
                        NULL, G_PARAM_READWRITE)); /* CHECKME */
  

  
  gobject_class->set_property = gst_shout2send_set_property;
  gobject_class->get_property = gst_shout2send_get_property;

  gstelement_class->change_state = gst_shout2send_change_state;
}

static void
gst_shout2send_init (GstShout2send *shout2send)
{
  shout2send->sinkpad = gst_pad_new_from_template (sink_template_factory (), "sink");
  gst_element_add_pad(GST_ELEMENT(shout2send),shout2send->sinkpad);
  gst_pad_set_chain_function(shout2send->sinkpad,gst_shout2send_chain);

  gst_pad_set_link_function (shout2send->sinkpad, gst_shout2send_connect);

  shout2send->ip = g_strdup ("127.0.0.1");
  shout2send->port = 8000;
  shout2send->password = g_strdup ("hackme");
  shout2send->name = g_strdup ("");
  shout2send->description = g_strdup ("");
  shout2send->genre = g_strdup ("");
  shout2send->mount = g_strdup ("");
  shout2send->url = g_strdup ("");
  shout2send->protocol = SHOUT2SEND_PROTOCOL_HTTP;
}

static void
gst_shout2send_chain (GstPad *pad, GstData *_data)
{
  GstBuffer *buf = GST_BUFFER (_data);
  GstShout2send *shout2send;
  glong ret;

  g_return_if_fail(pad != NULL);
  g_return_if_fail(GST_IS_PAD(pad));
  g_return_if_fail(buf != NULL);

  shout2send = GST_SHOUT2SEND (GST_OBJECT_PARENT (pad));

  g_return_if_fail (shout2send != NULL);
  g_return_if_fail (GST_IS_SHOUT2SEND (shout2send));

  ret = shout_send (shout2send->conn, GST_BUFFER_DATA (buf),
		                             GST_BUFFER_SIZE (buf));
  if (ret != SHOUTERR_SUCCESS) {
    g_warning ("send error: %s...\n", shout_get_error(shout2send->conn));
  }

  shout_sync (shout2send->conn);

  gst_buffer_unref (buf);
}

static void
gst_shout2send_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
  GstShout2send *shout2send;

  /* it's not null if we got it, but it might not be ours */
  g_return_if_fail(GST_IS_SHOUT2SEND(object));
  shout2send = GST_SHOUT2SEND(object);

  switch (prop_id) {

  case ARG_IP:
    if (shout2send->ip)
      g_free (shout2send->ip);
    shout2send->ip = g_strdup (g_value_get_string (value));
    break;
    
  case ARG_PORT:
    shout2send->port = g_value_get_int (value);
    break;

  case ARG_PASSWORD:
    if (shout2send->password)
      g_free (shout2send->password);
    shout2send->password = g_strdup (g_value_get_string (value));
    break;

  case ARG_NAME:         /* Name of the stream */
    if (shout2send->name)
      g_free (shout2send->name);
    shout2send->name = g_strdup (g_value_get_string (value));
    break;

  case ARG_DESCRIPTION: /* Description of the stream */
    if (shout2send->description)
      g_free (shout2send->description);
    shout2send->description = g_strdup (g_value_get_string (value));
    break;
    
  case ARG_GENRE:       /* Genre of the stream */
    if (shout2send->genre)
      g_free (shout2send->genre);
    shout2send->genre = g_strdup (g_value_get_string (value));
    break;
    
  case ARG_PROTOCOL:       /* protocol to connect with */
    shout2send->protocol = g_value_get_enum (value);
    break;  

  case ARG_MOUNT:       /* mountpoint of stream (icecast only) */
    if (shout2send->mount)
      g_free (shout2send->mount);
    shout2send->mount = g_strdup (g_value_get_string (value));
    break;
      
  case ARG_URL:       /* Url of the stream (I'm guessing) */
    if (shout2send->url)
      g_free (shout2send->url);
    shout2send->url = g_strdup (g_value_get_string (value));
    break;
    
  default:
    break;
  }
}

static void
gst_shout2send_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
  GstShout2send *shout2send;

  /* it's not null if we got it, but it might not be ours */
  g_return_if_fail(GST_IS_SHOUT2SEND(object));
  shout2send = GST_SHOUT2SEND(object);

  switch (prop_id) {
  
  case ARG_IP:
    g_value_set_string (value, shout2send->ip);
    break;
  case ARG_PORT:
    g_value_set_int (value, shout2send->port);
    break;
  case ARG_PASSWORD:
    g_value_set_string (value, shout2send->password);
    break;

  case ARG_NAME:         /* Name of the stream */
    g_value_set_string (value, shout2send->name);
    break;

  case ARG_DESCRIPTION: /* Description of the stream */
    g_value_set_string (value, shout2send->description);
    break;

  case ARG_GENRE:       /* Genre of the stream */
    g_value_set_string (value, shout2send->genre);
    break;

  case ARG_PROTOCOL:       /* protocol to connect with */
    g_value_set_enum (value, shout2send->protocol);
    break; 

  case ARG_MOUNT:       /* mountpoint of stream (icecast only) */
    g_value_set_string (value, shout2send->mount);
    break;

  case ARG_URL:       /* Url of stream (I'm guessing) */
    g_value_set_string (value, shout2send->url);
    break;
      
    
  default:
    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
    break;
  }
}

static GstPadLinkReturn
gst_shout2send_connect (GstPad *pad, GstCaps *caps)

{
  
  if (!strcmp(gst_caps_get_mime (caps), "audio/mpeg"))
    {
      audio_format = SHOUT_FORMAT_MP3;
      return GST_PAD_LINK_OK;
    }

  if (!strcmp(gst_caps_get_mime (caps), "application/ogg"))
    {
      audio_format = SHOUT_FORMAT_VORBIS;
      return GST_PAD_LINK_OK;
    }
  else {
    return GST_PAD_LINK_REFUSED;
  }
	
}

static GstElementStateReturn
gst_shout2send_change_state (GstElement *element)
{
  GstShout2send *shout2send;

  guint major, minor, micro;
  gshort proto = 3;

  gchar *version_string;

  g_return_val_if_fail (GST_IS_SHOUT2SEND (element), GST_STATE_FAILURE);

  shout2send = GST_SHOUT2SEND(element);

  GST_DEBUG ("state pending %d", GST_STATE_PENDING (element));

  /* if going down into NULL state, close the file if it's open */
  switch (GST_STATE_TRANSITION (element)) {
   case GST_STATE_NULL_TO_READY:
     shout2send->conn = shout_new();

     switch (shout2send->protocol) {
     case SHOUT2SEND_PROTOCOL_ICE:
       proto = SHOUT_PROTOCOL_ICE;
       break;
     case SHOUT2SEND_PROTOCOL_XAUDIOCAST:
       proto = SHOUT_PROTOCOL_XAUDIOCAST;
       break;
     case SHOUT2SEND_PROTOCOL_ICY:
       proto = SHOUT_PROTOCOL_ICY;
       break;
     case SHOUT2SEND_PROTOCOL_HTTP:
       proto = SHOUT_PROTOCOL_HTTP;
       break;
     }

     if (shout_set_protocol(shout2send->conn, proto) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting protocol: %s\n", shout_get_error(shout2send->conn));
       }

     /* --- FIXME: shout requires an ip, and fails if it is given a host. */
     /* may want to put convert_to_ip(shout2send->ip) here */


     if (shout_set_host(shout2send->conn, shout2send->ip) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting host: %s\n", shout_get_error(shout2send->conn)); 
       }
     /* --- */
     
     if (shout_set_port(shout2send->conn, shout2send->port) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting port: %s\n", shout_get_error(shout2send->conn)); 
       } 

     if(shout_set_password(shout2send->conn, shout2send->password) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting password: %s\n", shout_get_error(shout2send->conn)); 
       }
     
     if (shout_set_name(shout2send->conn, shout2send->name) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting name: %s\n", shout_get_error(shout2send->conn)); 
       } 

     if (shout_set_description(shout2send->conn, shout2send->description) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting name: %s\n", shout_get_error(shout2send->conn)); 
       } 

     if (shout_set_genre(shout2send->conn, shout2send->genre) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting name: %s\n", shout_get_error(shout2send->conn)); 
       } 

     if (shout_set_mount(shout2send->conn, shout2send->mount) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting mount point: %s\n", shout_get_error(shout2send->conn)); 
       }
 
     if (shout_set_user(shout2send->conn, "source") != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting user: %s\n", shout_get_error(shout2send->conn)); 
       }

     gst_version(&major,&minor,&micro);
     
     version_string = g_strdup_printf("GStreamer %d.%d.%d", major,minor,micro);

     if (shout_set_agent(shout2send->conn, version_string) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting agent: %s\n", shout_get_error(shout2send->conn)); 
       }
     
     g_free (version_string);
     

     
     break;
  case GST_STATE_READY_TO_PAUSED:

    /* This sets the format acording to the capabilities of what
       we are being given as input. */

    if (shout_set_format(shout2send->conn, audio_format) != SHOUTERR_SUCCESS)
       {
	 g_error ("Error setting connection format: %s\n", shout_get_error(shout2send->conn)); 
       } 

    if (shout_open (shout2send->conn) == SHOUTERR_SUCCESS) {
      g_print ("connected to server...\n");
    }
    else {
      g_warning ("Couldn't connect to server: %s", shout_get_error(shout2send->conn));
      shout_close (shout2send->conn);
      shout_free (shout2send->conn);
      return GST_STATE_FAILURE;
    }
    break;
  case GST_STATE_PAUSED_TO_READY:
    shout_close (shout2send->conn);
    shout_free (shout2send->conn);
    break;
  default:
    break;
  }
  
  /* if we haven't failed already, give the parent class a chance to ;-) */
  if (GST_ELEMENT_CLASS (parent_class)->change_state)
    return GST_ELEMENT_CLASS (parent_class)->change_state (element);
  
  return GST_STATE_SUCCESS;
}

static gboolean
plugin_init (GstPlugin *plugin)
{
  return gst_element_register (plugin, "shout2send", GST_RANK_NONE,
			       GST_TYPE_SHOUT2SEND);
}

GST_PLUGIN_DEFINE (
  GST_VERSION_MAJOR,
  GST_VERSION_MINOR,
  "shout2send",
  "Sends data to an icecast server using libshout2",
  plugin_init,
  VERSION,
  "LGPL",
  GST_COPYRIGHT,
  "libshout2",
  "http://www.icecast.org/download.html"
)