/*
- * Copyright (C) 2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2008 Andre Noll <maan@systemlinux.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
*/
/**
- * \file grab_client.c functions for grabbing the stream at any position
- * in a filter chain
+ * \file grab_client.c Functions for grabbing the stream at any position
+ * in a filter chain.
*
- * \sa filter_chain filter_chain_info filter
+ * \sa filter_chain filter_chain_info filter.
*/
+#include <sys/types.h>
+#include <dirent.h>
+
#include "para.h"
#include "grab_client.cmdline.h"
#include "list.h"
#include "fd.h"
#include "crypt.h"
-/** grab clients that are not yet attached to a filter node */
+/** Grab clients that are not yet attached to a filter node. */
struct list_head inactive_grab_client_list;
static int max_num_filters(void)
if (gc->audio_format_num < 0)
return gc->audio_format_num;
}
- if (c->slot_arg > MAX_STREAM_SLOTS)
+ if (c->slot_arg >= MAX_STREAM_SLOTS)
return -E_BAD_GC_SLOT;
- if (c->filter_num_arg <= 0)
+ if (c->filter_num_arg < 0)
return -E_BAD_GC_FILTER_NUM;
if (c->audio_format_given) {
- if (num_filters(gc->audio_format_num) < c->filter_num_arg)
+ if (num_filters(gc->audio_format_num) <= c->filter_num_arg)
return -E_BAD_GC_FILTER_NUM;
} else
- if (c->filter_num_arg > max_num_filters())
+ if (c->filter_num_arg >= max_num_filters())
return -E_BAD_GC_FILTER_NUM;
return 1;
}
/**
- * move a grab client from the inactive list to a filter node
+ * Move a grab client from the inactive list to a filter node.
*
- * \param gc the grab client to activate
- * \param fn the filter node \a gc gets attached to
+ * \param gc The grab client to activate.
+ * \param fn The filter node \a gc gets attached to.
*
- * \sa filter_node::callbacks, inactive_grab_client_list
+ * \sa filter_node::callbacks, inactive_grab_client_list.
*/
void activate_grab_client(struct grab_client *gc, struct filter_node *fn)
{
}
/**
- * activate inactive grab clients if possible
+ * Activate inactive grab clients if possible.
*
- * \param slot_num audiod's slot for the new audio file
- * \param audio_format_num the number of the audio format of the new audio file
- * \param filter_list the list of activated filters for that new audio file
+ * \param slot_num Audiod's slot for the new audio file.
+ * \param audio_format_num The number of the audio format of the new audio file.
+ * \param fc The filter chain containing the activated filters.
*
* This is called from audiod.c when the current audio file changes. It loops
* over all inactive grab clients and checks each grab client's configuration
* appropriate filter_node.
*
* \sa filter_chain_info::filters, inactive_grab_client_list,
- * activate_grab_client
+ * activate_grab_client.
*/
void activate_inactive_grab_clients(int slot_num, int audio_format_num,
- struct list_head *filter_list)
+ struct filter_chain *fc)
{
struct grab_client *gc, *tmp;
- int i;
+ int filter_num;
struct filter_node *fn;
list_for_each_entry_safe(gc, tmp, &inactive_grab_client_list, node) {
if (gc->audio_format_num >= 0 && gc->audio_format_num !=
audio_format_num)
continue;
- if (gc->conf->filter_num_arg >= 0 &&
- num_filters(gc->audio_format_num)
- < gc->conf->filter_num_arg)
+ filter_num = gc->conf->filter_num_arg;
+ if (filter_num >= num_filters(gc->audio_format_num))
continue;
- i = 1;
- list_for_each_entry(fn, filter_list, node) {
- if (gc->conf->filter_num_arg <= 0
- || i == gc->conf->filter_num_arg)
- break;
- i++;
- }
+ fn = fc->filter_nodes + filter_num;
activate_grab_client(gc, fn);
}
}
/**
- * check the command line options and allocate a grab_client structure
+ * Check the command line options and allocate a grab_client structure.
*
- * \param fd the file descriptor of the client
- * \param line the command line
- * \param err non-zero if an error occured
+ * \param fd The file descriptor of the client.
+ * \param line The command line.
+ * \param err Non-zero if an error occurred.
*
* If the command line options given by \a argc and \a argv are valid.
* allocate a struct grab_client and initialize it with this valid
* struct. On errors, it returns NULL and sets \a err appropriately.
*
* \sa grab_client, inactive_grab_client_list, activate_grab_client,
- * filter_node::callbacks
+ * filter_node::callbacks.
*/
/*
* argc, argv get freed when com_grab() returns, so we have to make a
return NULL;
}
-/** initialize the grabbing subsystem.
+/**
+ * Initialize the grabbing subsystem.
*
* This has to be called once during startup before any other function from
* grab_client.c may be used. It initializes \a inactive_grab_client_list.
*/
void init_grabbing(void)
{
- PARA_INFO_LOG("%s", "grab init\n");
+ PARA_INFO_LOG("grab init\n");
INIT_LIST_HEAD(&inactive_grab_client_list);
}
-
projects / paraslash.git / blobdiff