freeswitch/src/mod/codecs/mod_yuv/mod_yuv.c

98 lines
2.8 KiB
C

/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Seven Du <dujinfang@gmail.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* mod_yuv.c -- YUV (raw) Video Codec
*
*/
#include <switch.h>
SWITCH_MODULE_LOAD_FUNCTION(mod_yuv_load);
SWITCH_MODULE_DEFINITION(mod_yuv, mod_yuv_load, NULL, NULL);
static switch_status_t switch_yuv_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
{
int encoding, decoding;
encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
if (!(encoding || decoding)) {
return SWITCH_STATUS_FALSE;
} else {
if (codec->fmtp_in) {
codec->fmtp_out = switch_core_strdup(codec->memory_pool, codec->fmtp_in);
}
return SWITCH_STATUS_SUCCESS;
}
}
static switch_status_t switch_yuv_encode(switch_codec_t *codec, switch_frame_t *frame)
{
/* yuv encode is unclear, so return 0 for now */
frame->datalen = 0;
frame->m = 1;
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t switch_yuv_decode(switch_codec_t *codec, switch_frame_t *frame)
{
switch_assert(frame);
frame->img = (switch_image_t *)frame->user_data;
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t switch_yuv_destroy(switch_codec_t *codec)
{
return SWITCH_STATUS_SUCCESS;
}
SWITCH_MODULE_LOAD_FUNCTION(mod_yuv_load)
{
switch_codec_interface_t *codec_interface;
/* connect my internal structure to the blank pointer passed to me */
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
SWITCH_ADD_CODEC(codec_interface, "YUV I420 Video (raw)");
switch_core_codec_add_video_implementation(pool, codec_interface, 99, "I420", NULL,
switch_yuv_init, switch_yuv_encode, switch_yuv_decode, NULL, switch_yuv_destroy);
/* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS;
}
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