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145 lines
3.7 KiB
145 lines
3.7 KiB
/*
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* encode_null.c -- produces empty (as in zero-sized) A/V frames.
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* (C) 2005-2010 Francesco Romani <fromani at gmail dot com>
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*
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* This file is part of transcode, a video stream processing tool.
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*
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* transcode is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* transcode is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "transcode.h"
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#include "framebuffer.h"
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#include "libtc/optstr.h"
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#include "libtc/tcmodule-plugin.h"
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#define MOD_NAME "encode_null.so"
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#define MOD_VERSION "v0.0.3 (2005-06-05)"
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#define MOD_CAP "null (fake) A/V encoder"
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#define MOD_FEATURES \
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TC_MODULE_FEATURE_ENCODE|TC_MODULE_FEATURE_VIDEO|TC_MODULE_FEATURE_AUDIO
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#define MOD_FLAGS \
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TC_MODULE_FLAG_RECONFIGURABLE
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static const char null_help[] = ""
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"Overview:\n"
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" this module absorbs provided A/V frames and produces fake,"
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" empty \"encoded\" frames.\n"
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"Options:\n"
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" help produce module overview and options explanations\n";
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static int null_init(TCModuleInstance *self, uint32_t features)
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{
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TC_MODULE_SELF_CHECK(self, "init");
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TC_MODULE_INIT_CHECK(self, MOD_FEATURES, features);
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if (verbose) {
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tc_log_info(MOD_NAME, "%s %s", MOD_VERSION, MOD_CAP);
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}
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self->userdata = NULL;
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return TC_OK;
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}
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static int null_fini(TCModuleInstance *self)
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{
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TC_MODULE_SELF_CHECK(self, "fini");
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return TC_OK;
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}
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static int null_configure(TCModuleInstance *self,
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const char *options, vob_t *vob)
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{
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TC_MODULE_SELF_CHECK(self, "configure");
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return TC_OK;
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}
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static int null_inspect(TCModuleInstance *self,
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const char *param, const char **value)
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{
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TC_MODULE_SELF_CHECK(self, "inspect");
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if (optstr_lookup(param, "help")) {
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*value = null_help;
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}
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return TC_OK;
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}
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static int null_stop(TCModuleInstance *self)
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{
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TC_MODULE_SELF_CHECK(self, "stop");
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return TC_OK;
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}
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static int null_encode_video(TCModuleInstance *self,
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vframe_list_t *inframe, vframe_list_t *outframe)
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{
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TC_MODULE_SELF_CHECK(self, "encode_video");
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outframe->video_len = 0;
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return TC_OK;
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}
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static int null_encode_audio(TCModuleInstance *self,
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aframe_list_t *inframe, aframe_list_t *outframe)
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{
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TC_MODULE_SELF_CHECK(self, "encode_audio");
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outframe->audio_len = 0;
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return TC_OK;
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}
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/*************************************************************************/
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static const TCCodecID null_codecs_in[] = { TC_CODEC_ANY, TC_CODEC_ERROR };
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static const TCCodecID null_codecs_out[] = { TC_CODEC_ANY, TC_CODEC_ERROR };
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TC_MODULE_CODEC_FORMATS(null);
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TC_MODULE_INFO(null);
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static const TCModuleClass null_class = {
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TC_MODULE_CLASS_HEAD(null),
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.init = null_init,
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.fini = null_fini,
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.configure = null_configure,
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.stop = null_stop,
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.inspect = null_inspect,
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.encode_video = null_encode_video,
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.encode_audio = null_encode_audio,
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};
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TC_MODULE_ENTRY_POINT(null)
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/*************************************************************************/
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/*
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* Local variables:
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* c-file-style: "stroustrup"
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* c-file-offsets: ((case-label . *) (statement-case-intro . *))
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* indent-tabs-mode: nil
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* End:
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*
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* vim: expandtab shiftwidth=4:
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*/
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