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/*
* encode_null.c -- produces empty (as in zero-sized) A/V frames.
* (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 "framebuffer.h"
#include "libtc/optstr.h"
#include "libtc/tcmodule-plugin.h"
#define MOD_NAME "encode_null.so"
#define MOD_VERSION "v0.0.3 (2005-06-05)"
#define MOD_CAP "null (fake) A/V encoder"
#define MOD_FEATURES \
TC_MODULE_FEATURE_ENCODE|TC_MODULE_FEATURE_VIDEO|TC_MODULE_FEATURE_AUDIO
#define MOD_FLAGS \
TC_MODULE_FLAG_RECONFIGURABLE
static const char null_help[] = ""
"Overview:\n"
" this module absorbs provided A/V frames and produces fake,"
" empty \"encoded\" frames.\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_encode_video(TCModuleInstance *self,
vframe_list_t *inframe, vframe_list_t *outframe)
{
TC_MODULE_SELF_CHECK(self, "encode_video");
outframe->video_len = 0;
return TC_OK;
}
static int null_encode_audio(TCModuleInstance *self,
aframe_list_t *inframe, aframe_list_t *outframe)
{
TC_MODULE_SELF_CHECK(self, "encode_audio");
outframe->audio_len = 0;
return TC_OK;
}
/*************************************************************************/
static const TCCodecID null_codecs_in[] = { TC_CODEC_ANY, TC_CODEC_ERROR };
static const TCCodecID null_codecs_out[] = { TC_CODEC_ANY, TC_CODEC_ERROR };
TC_MODULE_CODEC_FORMATS(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,
.encode_video = null_encode_video,
.encode_audio = null_encode_audio,
};
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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