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/*
* multiplex_null.c -- fake multiplexor that discards any given frame.
* (C) 2005-2010 Francesco Romani <fromani at gmail dot com>
*
* This file is part of transcode, a video stream processing tool.
*
* transcode 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.
*
* transcode 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, see <http://www.gnu.org/licenses/>.
*/
#include "transcode.h"
#include "libtc/optstr.h"
#include "libtc/tcmodule-plugin.h"
#define MOD_NAME "multiplex_null.so"
#define MOD_VERSION "v0.0.2 (2005-12-29)"
#define MOD_CAP "discard each encoded frame"
#define MOD_FEATURES \
TC_MODULE_FEATURE_MULTIPLEX|TC_MODULE_FEATURE_VIDEO|TC_MODULE_FEATURE_AUDIO
#define MOD_FLAGS \
TC_MODULE_FLAG_RECONFIGURABLE
static const char null_help[] = ""
"Overview:\n"
" this module simply discard given encoded write audio and video frames.\n"
" Is used for test, benchmark and debug purposes.\n"
"Options:\n"
" help produce module overview and options explanations\n";
static int null_init(TCModuleInstance *self, uint32_t features)
{
TC_MODULE_SELF_CHECK(self, "init");
TC_MODULE_INIT_CHECK(self, MOD_FEATURES, features);
if (verbose) {
tc_log_info(MOD_NAME, "%s %s", MOD_VERSION, MOD_CAP);
}
self->userdata = NULL;
return TC_OK;
}
static int null_fini(TCModuleInstance *self)
{
TC_MODULE_SELF_CHECK(self, "fini");
return TC_OK;
}
static int null_configure(TCModuleInstance *self,
const char *options, vob_t *vob)
{
TC_MODULE_SELF_CHECK(self, "configure");
return TC_OK;
}
static int null_inspect(TCModuleInstance *self,
const char *param, const char **value)
{
TC_MODULE_SELF_CHECK(self, "inspect");
if (optstr_lookup(param, "help")) {
*value = null_help;
}
return TC_OK;
}
static int null_stop(TCModuleInstance *self)
{
TC_MODULE_SELF_CHECK(self, "stop");
return TC_OK;
}
static int null_multiplex(TCModuleInstance *self,
vframe_list_t *vframe, aframe_list_t *aframe)
{
int asize = 0, vsize = 0;
TC_MODULE_SELF_CHECK(self, "multiplex");
if (vframe != NULL) {
vsize = vframe->video_len;
}
if (aframe != NULL) {
asize = aframe->audio_len;
}
return vsize + asize;
}
/*************************************************************************/
static const TCCodecID null_codecs_in[] = { TC_CODEC_ANY, TC_CODEC_ERROR };
static const TCFormatID null_formats_out[] = { TC_FORMAT_NULL, TC_FORMAT_ERROR };
/* a multiplexor is at the end of pipeline */
TC_MODULE_MPLEX_FORMATS_CODECS(null);
TC_MODULE_INFO(null);
static const TCModuleClass null_class = {
TC_MODULE_CLASS_HEAD(null),
.init = null_init,
.fini = null_fini,
.configure = null_configure,
.stop = null_stop,
.inspect = null_inspect,
.multiplex = null_multiplex,
};
TC_MODULE_ENTRY_POINT(null)
/*************************************************************************/
/*
* Local variables:
* c-file-style: "stroustrup"
* c-file-offsets: ((case-label . *) (statement-case-intro . *))
* indent-tabs-mode: nil
* End:
*
* vim: expandtab shiftwidth=4:
*/
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