obs-studio/plugins/obs-outputs/null-output.c

100 lines
2.7 KiB
C

/******************************************************************************
Copyright (C) 2017 by Hugh Bailey <obs.jim@gmail.com>
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, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#include <util/threading.h>
#include <obs-module.h>
struct null_output {
obs_output_t *output;
pthread_t stop_thread;
bool stop_thread_active;
};
static const char *null_output_getname(void *unused)
{
UNUSED_PARAMETER(unused);
return "Null Encoding Output";
}
static void *null_output_create(obs_data_t *settings, obs_output_t *output)
{
struct null_output *context = bzalloc(sizeof(*context));
context->output = output;
UNUSED_PARAMETER(settings);
return context;
}
static void null_output_destroy(void *data)
{
struct null_output *context = data;
if (context->stop_thread_active)
pthread_join(context->stop_thread, NULL);
bfree(context);
}
static bool null_output_start(void *data)
{
struct null_output *context = data;
if (!obs_output_can_begin_data_capture(context->output, 0))
return false;
if (!obs_output_initialize_encoders(context->output, 0))
return false;
if (context->stop_thread_active)
pthread_join(context->stop_thread, NULL);
obs_output_begin_data_capture(context->output, 0);
return true;
}
static void *stop_thread(void *data)
{
struct null_output *context = data;
obs_output_end_data_capture(context->output);
context->stop_thread_active = false;
return NULL;
}
static void null_output_stop(void *data, uint64_t ts)
{
struct null_output *context = data;
UNUSED_PARAMETER(ts);
context->stop_thread_active = pthread_create(&context->stop_thread,
NULL, stop_thread,
data) == 0;
}
static void null_output_data(void *data, struct encoder_packet *packet)
{
UNUSED_PARAMETER(data);
UNUSED_PARAMETER(packet);
}
struct obs_output_info null_output_info = {
.id = "null_output",
.flags = OBS_OUTPUT_AV | OBS_OUTPUT_ENCODED,
.get_name = null_output_getname,
.create = null_output_create,
.destroy = null_output_destroy,
.start = null_output_start,
.stop = null_output_stop,
.encoded_packet = null_output_data,
};