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author | Tomas Kukosa <tomas.kukosa@siemens.com> | 2007-10-25 09:38:15 +0000 |
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committer | Tomas Kukosa <tomas.kukosa@siemens.com> | 2007-10-25 09:38:15 +0000 |
commit | 136de3920c4f703e9d7aeb5f6d3b6484a2bc6479 (patch) | |
tree | b55286be4fe6da2b8556a21a18dea5b3563ed374 /epan/codecs.c | |
parent | 821106256bf98c026652181dbdf9480abf080f6a (diff) | |
download | wireshark-136de3920c4f703e9d7aeb5f6d3b6484a2bc6479.tar.gz |
new codec table for registering codecs by name
new codec plugin type
search registered codecs in rtp player
fix memory leak in rtp player
svn path=/trunk/; revision=23270
Diffstat (limited to 'epan/codecs.c')
-rw-r--r-- | epan/codecs.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/epan/codecs.c b/epan/codecs.c new file mode 100644 index 0000000000..28c53d7b62 --- /dev/null +++ b/epan/codecs.c @@ -0,0 +1,91 @@ +/* codecs.c + * codecs interface 2007 Tomas Kukosa + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * 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 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <epan/codecs.h> + +struct codec_handle { + const char *name; + codec_init_fn init_fn; + codec_release_fn release_fn; + codec_decode_fn decode_fn; +}; + +/* + * List of registered codecs. + */ +static GHashTable *registered_codecs = NULL; + + +/* Find a registered codec by name. */ +codec_handle_t +find_codec(const char *name) +{ + return (registered_codecs) ? g_hash_table_lookup(registered_codecs, name) : NULL; +} + +/* Register a codec by name. */ +void +register_codec(const char *name, codec_init_fn init_fn, codec_release_fn release_fn, codec_decode_fn decode_fn) +{ + struct codec_handle *handle; + + /* Create our hash table if it doesn't already exist */ + if (registered_codecs == NULL) { + registered_codecs = g_hash_table_new(g_str_hash, g_str_equal); + g_assert(registered_codecs != NULL); + } + + /* Make sure the registration is unique */ + g_assert(g_hash_table_lookup(registered_codecs, name) == NULL); + + handle = g_malloc(sizeof (struct codec_handle)); + handle->name = name; + handle->init_fn = init_fn; + handle->release_fn = release_fn; + handle->decode_fn = decode_fn; + + g_hash_table_insert(registered_codecs, (gpointer)name, (gpointer) handle); +} + +void *codec_init(codec_handle_t codec) +{ + if (!codec) return NULL; + return (codec->init_fn)(); +} + +void codec_release(codec_handle_t codec, void *context) +{ + if (!codec) return; + (codec->release_fn)(context); +} + +int codec_decode(codec_handle_t codec, void *context, const void *input, int inputSizeBytes, void *output, int *outputSizeBytes) +{ + if (!codec) return 0; + return (codec->decode_fn)(context, input, inputSizeBytes, output, outputSizeBytes); +} |