C++ (Cpp) gst_gnome_vfs_src_pop_callbacks示例

示例#1

文件： gstgnomevfssrc.c 项目： genesi/gst-base-plugins

/* open the file, do stuff necessary to go to PAUSED state */
static gboolean
gst_gnome_vfs_src_start (GstBaseSrc * basesrc)
{
  GnomeVFSResult res;
  GstGnomeVFSSrc *src;

  src = GST_GNOME_VFS_SRC (basesrc);

  gst_gnome_vfs_src_push_callbacks (src);

  if (src->uri != NULL) {
    GnomeVFSOpenMode mode = GNOME_VFS_OPEN_READ;

    /* this can block... */
    res = gnome_vfs_open_uri (&src->handle, src->uri, mode);
    if (res != GNOME_VFS_OK)
      goto open_failed;
    src->own_handle = TRUE;
  } else if (!src->handle) {
    goto no_filename;
  } else {
    src->own_handle = FALSE;
  }

  if (gnome_vfs_seek (src->handle, GNOME_VFS_SEEK_CURRENT, 0) == GNOME_VFS_OK) {
    src->seekable = TRUE;
  } else {
    src->seekable = FALSE;
  }

  return TRUE;

  /* ERRORS */
open_failed:
  {
    gchar *filename = gnome_vfs_uri_to_string (src->uri,
        GNOME_VFS_URI_HIDE_PASSWORD);

    gst_gnome_vfs_src_pop_callbacks (src);

    if (res == GNOME_VFS_ERROR_NOT_FOUND ||
        res == GNOME_VFS_ERROR_HOST_NOT_FOUND ||
        res == GNOME_VFS_ERROR_SERVICE_NOT_AVAILABLE) {
      GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
          ("Could not open vfs file \"%s\" for reading: %s (%d)",
              filename, gnome_vfs_result_to_string (res), res));
    } else {
      GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
          ("Could not open vfs file \"%s\" for reading: %s (%d)",
              filename, gnome_vfs_result_to_string (res), res));
    }
    g_free (filename);
    return FALSE;
  }
no_filename:
  {
    GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("No filename given"));
    return FALSE;
  }
}

示例#2

文件： gstgnomevfssrc.c 项目： luisbg/gst-plugins-base

static gboolean
gst_gnome_vfs_src_stop (GstBaseSrc * basesrc)
{
  GstGnomeVFSSrc *src;

  src = GST_GNOME_VFS_SRC (basesrc);

  gst_gnome_vfs_src_pop_callbacks (src);

  if (src->own_handle) {
    GnomeVFSResult res;

    res = gnome_vfs_close (src->handle);
    if (res != GNOME_VFS_OK) {
      GST_ELEMENT_ERROR (src, RESOURCE, CLOSE, (NULL),
          ("Could not close vfs handle: %s", gnome_vfs_result_to_string (res)));
    }
    src->handle = NULL;
  }
  src->curoffset = 0;
  src->interrupted = FALSE;
  gnome_vfs_context_free (src->context);
  src->context = NULL;

  return TRUE;
}