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gmyth-stream/libgnomevfs2/modules/gmythstream-method.c
author rosfran
Wed May 16 19:46:20 2007 +0100 (2007-05-16)
branchtrunk
changeset 675 4c7f6a9bfded
parent 544 bf01a0d21980
child 754 cb885ee44618
permissions -rw-r--r--
[svn r681] Added configuration file parser (name/value pair list). 
     1 /*

     2  * @author Artur Duque de Souza <souza.artur@indt.org.br>

     3  *

     4  * This program is free software; you can redistribute it and/or modify

     5  * it under the terms of the GNU Lesser General Public License as published by

     6  * the Free Software Foundation; either version 2 of the License, or

     7  * (at your option) any later version.

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  m * You should have received a copy of the GNU Lesser General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    17  */

    18 

    19 #ifdef HAVE_CONFIG_H

    20 #include <config.h>

    21 #endif

    22 

    23 #include <sys/socket.h> /* for socket(), connect(), send(), and recv() */

    24 #include <arpa/inet.h>  /* for sockaddr_in and inet_addr() */

    25 #include <stdlib.h>     /* for atoi() and exit() */

    26 #include <string.h>     /* for memset() */

    27 #include <unistd.h>     /* for close() */

    28 #include <errno.h>

    29 

    30 #include <glib.h>

    31 #include <glib/gprintf.h>

    32 #include <glib/gstdio.h>

    33 #include <gmyth-stream-client.h>

    34 

    35 #include <libgnomevfs/gnome-vfs-module.h>

    36 #include <libgnomevfs/gnome-vfs-utils.h>

    37 

    38 #define BUFFER_SIZE 4096

    39 

    40 typedef struct {

    41     gint port;

    42     gchar* hostname;

    43 

    44     GMythStreamClient *stream;

    45     gint fd;

    46 } gmsHandle;

    47 

    48 typedef struct {

    49     gchar *file_name;

    50     gchar *mux;

    51     gchar *vcodec;

    52     guint vbitrate;

    53     gdouble fps;

    54     gchar *acodec;

    55     guint abitrate;

    56     guint width;

    57     guint height;

    58     guint port;

    59     gchar *opt;

    60 } UriArgs;

    61 

    62 

    63 static gmsHandle* gmsHandle_new(GnomeVFSURI *uri);

    64 

    65 static GnomeVFSResult

    66 do_open (GnomeVFSMethod        *method,

    67 	 GnomeVFSMethodHandle **method_handle,

    68 	 GnomeVFSURI           *uri,

    69 	 GnomeVFSOpenMode       mode,

    70 	 GnomeVFSContext       *context);

    71 

    72 static GnomeVFSResult

    73 do_read (GnomeVFSMethod       *method,

    74 	 GnomeVFSMethodHandle *method_handle,

    75 	 gpointer              buffer,

    76 	 GnomeVFSFileSize      bytes,

    77 	 GnomeVFSFileSize     *bytes_read,

    78 	 GnomeVFSContext      *context);

    79 

    80 static GnomeVFSResult

    81 do_close (GnomeVFSMethod * method,

    82           GnomeVFSMethodHandle * method_handle,

    83           GnomeVFSContext * context);

    84 

    85 static GnomeVFSResult

    86 do_get_file_info (GnomeVFSMethod * method,

    87 		  GnomeVFSURI * uri,

    88 		  GnomeVFSFileInfo * file_info,

    89 		  GnomeVFSFileInfoOptions options,

    90 		  GnomeVFSContext * context);

    91 

    92 

    93 static GnomeVFSResult

    94 do_get_file_info_from_handle (GnomeVFSMethod 		*method,

    95                               GnomeVFSMethodHandle 	*method_handle,

    96                               GnomeVFSFileInfo 		*file_info,

    97                               GnomeVFSFileInfoOptions    options,

    98                               GnomeVFSContext 		*context);

    99 

   100 

   101 static gboolean

   102 do_is_local (GnomeVFSMethod * method, const GnomeVFSURI * uri);

   103 

   104 

   105 static gmsHandle* gmsHandle_new(GnomeVFSURI *uri)

   106 {

   107     gmsHandle* handler = (gmsHandle*)g_malloc0(sizeof(gmsHandle));

   108 

   109     handler->hostname = (gchar*)gnome_vfs_uri_get_host_name(uri);

   110     handler->port = gnome_vfs_uri_get_host_port(uri);

   111     handler->stream = gmyth_stream_client_new ();

   112 

   113     return handler;

   114 }

   115 

   116 static GnomeVFSMethod method = {

   117     sizeof (GnomeVFSMethod),

   118     do_open,                       /* open */

   119     NULL,                          /* create */

   120     do_close,                      /* close */

   121     do_read,                       /* read */

   122     NULL,                          /* write */

   123     NULL,                          /* seek */

   124     NULL,                          /* tell */

   125     NULL,                          /* truncate_handle */

   126     NULL,                          /* open_directory */

   127     NULL,                          /* close_directory */

   128     NULL,                          /* read_directory */

   129     do_get_file_info,              /* get_file_info */

   130     do_get_file_info_from_handle,  /* get_file_info_from_handle */

   131     do_is_local,                   /* is_local */

   132     NULL,                          /* make_directory */

   133     NULL,                          /* remove_directory */

   134     NULL,                          /* move */

   135     NULL,                          /* unlink */

   136     NULL,                          /* check_same_fs */

   137     NULL,                          /* set_file_info */

   138     NULL,                          /* truncate */

   139     NULL,                          /* find_directory */

   140     NULL,                          /* create_symbolic_link */

   141     NULL,                          /* monitor_add */

   142     NULL,                          /* monitor_cancel */

   143     NULL                           /* file_control */

   144 };

   145 

   146 GnomeVFSMethod *

   147 vfs_module_init (const char *method_name, const char *args)

   148 {

   149     return &method;

   150 }

   151 

   152 void

   153 vfs_module_shutdown (GnomeVFSMethod* method)

   154 {

   155     return;

   156 }

   157 

   158 char* _parse_opt(char* opt)

   159 {

   160     char** list = g_strsplit(opt, "opt=", 2);

   161     char** opts = g_strsplit(list[1], "+", 32);

   162     char* value = "";

   163     char* aux;

   164     gint i = 0;

   165 

   166     for (aux = opts[0]; aux != NULL; aux = opts[++i])

   167         value = g_strdup_printf("%s %s", value, aux);

   168 

   169     g_free(aux);

   170     g_strfreev(list);

   171     g_strfreev(opts);

   172     return value;

   173 }

   174 

   175 static UriArgs *

   176 _uri_parse_args (const GnomeVFSURI *uri)

   177 {

   178     gchar *file = gnome_vfs_unescape_string (uri->text, NULL);

   179 

   180     gchar **list = g_strsplit(file, "\'", 3);

   181     gchar **prefix = g_strsplit_set(list[0], "/=", 3);

   182     gchar **lst = g_strsplit (list[2], "?", 0);

   183 

   184     UriArgs *info = g_new0 (UriArgs, 1);

   185     gint i = 1;

   186 

   187     gchar** prop = NULL;

   188     prop = g_strsplit_set(lst[0], "/=", 3);

   189 

   190     info->file_name = g_strdup_printf ("%s://%s",\

   191                                        prefix[1],list[1]);

   192 

   193     //g_debug("FILENAME: [%s]", info->file_name);

   194 

   195     g_strfreev(prop);

   196 

   197     gchar* walk;

   198     for (walk = lst[1]; walk != NULL; walk = lst[++i])

   199     {

   200         prop = g_strsplit(walk, "=", 2);

   201 

   202         if (g_strv_length (prop) == 2) {

   203             if (strcmp (prop[0], "mux") == 0) {

   204                 info->mux = g_strdup (prop[1]);

   205             } else if (strcmp (prop[0], "vcodec") == 0) {

   206                 info->vcodec = g_strdup (prop[1]);

   207             } else if (strcmp (prop[0], "vbitrate") == 0) {

   208                 info->vbitrate = atoi (prop[1]);

   209             } else if (strcmp (prop[0], "fps") == 0) {

   210                 info->fps = g_strtod (prop[1], NULL);

   211             } else if (strcmp (prop[0], "acodec") == 0) {

   212                 info->acodec = g_strdup (prop[1]);

   213             } else if (strcmp (prop[0], "abitrate") == 0) {

   214                 info->abitrate = atoi (prop[1]);

   215             } else if (strcmp (prop[0], "width") == 0) {

   216                 info->width = atoi (prop[1]);

   217             } else if (strcmp (prop[0], "height") == 0) {

   218                 info->height = atoi (prop[1]);

   219             } else if (strcmp (prop[0], "opt") == 0) {

   220                 info->opt = g_strdup (_parse_opt(walk));

   221             }

   222         }

   223         g_strfreev (prop);

   224     }

   225 

   226     g_free (file);

   227     g_strfreev (list);

   228     g_strfreev (prefix);

   229     g_strfreev (lst);

   230     return info;

   231 }

   232 

   233 static GnomeVFSResult

   234 do_open (GnomeVFSMethod        *method,

   235 	 GnomeVFSMethodHandle **method_handle,

   236 	 GnomeVFSURI           *uri,

   237 	 GnomeVFSOpenMode       mode,

   238 	 GnomeVFSContext       *context)

   239 {

   240     gmsHandle *handle = gmsHandle_new(uri);

   241     UriArgs *args;

   242 

   243     if (!gmyth_stream_client_connect (handle->stream,

   244                                       gnome_vfs_uri_get_host_name  (uri),

   245                                       gnome_vfs_uri_get_host_port  (uri))) {

   246 

   247         return GNOME_VFS_ERROR_HOST_NOT_FOUND;

   248     }

   249 

   250     args = _uri_parse_args (uri);

   251 

   252     gint ret = gmyth_stream_client_open_stream (handle->stream,

   253                                                 args->file_name,

   254                                                 args->mux,

   255                                                 args->vcodec,

   256                                                 args->vbitrate,

   257                                                 args->fps,

   258                                                 args->acodec,

   259                                                 args->abitrate,

   260                                                 args->width,

   261                                                 args->height,

   262                                                 args->opt);

   263 

   264     g_free (args);

   265 

   266     if (ret == -1) {

   267         gmyth_stream_client_disconnect (handle->stream);

   268         return GNOME_VFS_ERROR_HOST_NOT_FOUND;

   269     }

   270 

   271     handle->fd = gmyth_stream_client_play_stream (handle->stream);

   272 

   273     if (handle->fd == -1) {

   274         gmyth_stream_client_disconnect (handle->stream);

   275         return GNOME_VFS_ERROR_HOST_NOT_FOUND;

   276     }

   277 

   278     *method_handle = (GnomeVFSMethodHandle *) handle;

   279     return GNOME_VFS_OK;

   280 }

   281 

   282 static GnomeVFSResult

   283 do_read (GnomeVFSMethod       *method,

   284 	 GnomeVFSMethodHandle *method_handle,

   285 	 gpointer              buffer,

   286 	 GnomeVFSFileSize      bytes,

   287 	 GnomeVFSFileSize     *bytes_read,

   288 	 GnomeVFSContext      *context)

   289 {

   290 

   291     gint64 total_read = 0;

   292     gmsHandle *handle = (gmsHandle *) method_handle;

   293 

   294     //g_debug("waiting something");

   295 

   296     total_read = recv(handle->fd, buffer, BUFFER_SIZE, 0);

   297     //g_debug("COULD READ: %d bytes", total_read);

   298     *bytes_read = (GnomeVFSFileSize) total_read;

   299 

   300     //if (total_read < 0) g_debug("ERROR!!!!!!!!!!!!!!!!");

   301 

   302     if (total_read < 0) return GNOME_VFS_ERROR_INTERNAL;

   303     else return GNOME_VFS_OK;

   304 

   305 }

   306 

   307 static GnomeVFSResult

   308 do_close (GnomeVFSMethod * method,

   309           GnomeVFSMethodHandle * method_handle,

   310           GnomeVFSContext * context)

   311 {

   312     gmsHandle *handle = (gmsHandle *) method_handle;

   313 

   314     g_debug("close close close");

   315 

   316     gmyth_stream_client_close_stream (handle->stream);

   317     gmyth_stream_client_disconnect (handle->stream);

   318 

   319     g_free(handle);

   320     return GNOME_VFS_OK;

   321 }

   322 

   323 

   324 static GnomeVFSResult

   325 do_get_file_info (GnomeVFSMethod * method,

   326 		  GnomeVFSURI * uri,

   327 		  GnomeVFSFileInfo * file_info,

   328 		  GnomeVFSFileInfoOptions options,

   329 		  GnomeVFSContext * context)

   330 {

   331     file_info->valid_fields = GNOME_VFS_FILE_INFO_FIELDS_TYPE |

   332         GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;

   333 

   334     file_info->type = GNOME_VFS_FILE_TYPE_SOCKET;

   335 

   336     file_info->permissions = GNOME_VFS_PERM_USER_READ |

   337         GNOME_VFS_PERM_OTHER_READ |

   338         GNOME_VFS_PERM_GROUP_READ;

   339 

   340     return GNOME_VFS_OK;

   341 }

   342 

   343 

   344 static GnomeVFSResult

   345 do_get_file_info_from_handle (GnomeVFSMethod 		*method,

   346                               GnomeVFSMethodHandle 	*method_handle,

   347                               GnomeVFSFileInfo 		*file_info,

   348                               GnomeVFSFileInfoOptions    options,

   349                               GnomeVFSContext 		*context)

   350 {

   351     file_info->valid_fields = GNOME_VFS_FILE_INFO_FIELDS_TYPE |

   352         GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;

   353 

   354     file_info->type = GNOME_VFS_FILE_TYPE_SOCKET;

   355 

   356     file_info->permissions = GNOME_VFS_PERM_USER_READ |

   357         GNOME_VFS_PERM_OTHER_READ |

   358         GNOME_VFS_PERM_GROUP_READ;

   359 

   360     return GNOME_VFS_OK;

   361 }

   362 

   363 

   364 static gboolean

   365 do_is_local (GnomeVFSMethod * method, const GnomeVFSURI * uri)

   366 {

   367     return FALSE;

   368 }
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