| c732d49e |
* Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
*
* The original file was part of Open Source Doubango Framework
* Copyright (C) 2010-2011 Mamadou Diop.
* Copyright (C) 2012 Doubango Telecom <http://doubango.org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 DOUBANGO.
*
*/
#include "tinyrtp/rtcp/trtp_rtcp_report_sdes.h"
#include "tinyrtp/rtcp/trtp_rtcp_header.h"
#include "tsk_debug.h"
/*
6.5 SDES: Source Description RTCP Packet
0 1 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
header |V=2|P| SC | PT=SDES=202 | length |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
chunk | SSRC/CSRC_1 |
1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SDES items |
| ... |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
chunk | SSRC/CSRC_2 |
2 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SDES items |
| ... |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*/
static tsk_object_t* trtp_rtcp_report_sdes_ctor(tsk_object_t * self, va_list * app)
{
trtp_rtcp_report_sdes_t *sdes = self;
if(sdes){
sdes->chuncks = tsk_list_create();
}
return self;
}
static tsk_object_t* trtp_rtcp_report_sdes_dtor(tsk_object_t * self)
{
trtp_rtcp_report_sdes_t *sdes = self;
if(sdes){
// deinit base
trtp_rtcp_packet_deinit(TRTP_RTCP_PACKET(sdes));
// deinit self
TSK_OBJECT_SAFE_FREE(sdes->chuncks);
}
return self;
}
static const tsk_object_def_t trtp_rtcp_report_sdes_def_s =
{
sizeof(trtp_rtcp_report_sdes_t),
trtp_rtcp_report_sdes_ctor,
trtp_rtcp_report_sdes_dtor,
tsk_null,
};
const tsk_object_def_t *trtp_rtcp_report_sdes_def_t = &trtp_rtcp_report_sdes_def_s;
trtp_rtcp_report_sdes_t* trtp_rtcp_report_sdes_create_null()
{
trtp_rtcp_report_sdes_t* sdes;
if((sdes = (trtp_rtcp_report_sdes_t*)tsk_object_new(trtp_rtcp_report_sdes_def_t))){
trtp_rtcp_packet_init(TRTP_RTCP_PACKET(sdes), TRTP_RTCP_HEADER_VERSION_DEFAULT, 0, 0, trtp_rtcp_packet_type_sdes, TRTP_RTCP_HEADER_SIZE);
}
return sdes;
}
trtp_rtcp_report_sdes_t* trtp_rtcp_report_sdes_create(trtp_rtcp_header_t* header)
{
trtp_rtcp_report_sdes_t* sdes;
if((sdes = (trtp_rtcp_report_sdes_t*)tsk_object_new(trtp_rtcp_report_sdes_def_t))){
TRTP_RTCP_PACKET(sdes)->header = tsk_object_ref(header);
}
return sdes;
}
trtp_rtcp_report_sdes_t* trtp_rtcp_report_sdes_deserialize(const void* data, tsk_size_t _size)
{
trtp_rtcp_report_sdes_t* sdes = tsk_null;
trtp_rtcp_header_t* header = tsk_null;
const uint8_t* pdata = (const uint8_t*)data;
int32_t size = (int32_t)_size;
if(!data || size < TRTP_RTCP_HEADER_SIZE){
TSK_DEBUG_ERROR("Invalid parameter");
return tsk_null;
}
if(!(header = trtp_rtcp_header_deserialize(pdata, size))){
TSK_DEBUG_ERROR("Failed to deserialize the header");
goto bail;
}
if(header->length_in_bytes < (TRTP_RTCP_HEADER_SIZE + 4)){
TSK_DEBUG_ERROR("Too short");
goto bail;
}
if(!(sdes = trtp_rtcp_report_sdes_create(header))){
TSK_DEBUG_ERROR("Failed to create object");
goto bail;
}
pdata += TRTP_RTCP_HEADER_SIZE;
size -= TRTP_RTCP_HEADER_SIZE;
// Chuncks
if(header->rc > 0){
tsk_size_t i = 0, chunck_size;
trtp_rtcp_sdes_chunck_t* chunck;
while(i++ < header->rc && size > TRTP_RTCP_SDES_CHUNCK_MIN_SIZE){
if((chunck = trtp_rtcp_sdes_chunck_deserialize(pdata, size))){
chunck_size = trtp_rtcp_sdes_chunck_get_size(chunck);
if((size -= (int32_t)chunck_size)){
pdata += chunck_size;
}
tsk_list_push_ascending_data(sdes->chuncks, (void**)&chunck);
continue;
}
break;
}
}
bail:
TSK_OBJECT_SAFE_FREE(header);
return sdes;
}
int trtp_rtcp_report_sdes_serialize_to(const trtp_rtcp_report_sdes_t* self, void* data, tsk_size_t size)
{
int ret;
uint8_t* pdata = (uint8_t*)data;
if(!self || !data || size < trtp_rtcp_report_sdes_get_size(self)){
return -1;
}
if((ret = trtp_rtcp_header_serialize_to(TRTP_RTCP_PACKET(self)->header, pdata, size))){
TSK_DEBUG_ERROR("Failed to serialize the header");
return ret;
}
pdata += (TRTP_RTCP_HEADER_SIZE);
size -= (TRTP_RTCP_HEADER_SIZE);
if(TRTP_RTCP_PACKET(self)->header->rc > 0){
const tsk_list_item_t* item;
tsk_size_t chunck_size;
const trtp_rtcp_sdes_chunck_t* chunck;
tsk_list_foreach(item, self->chuncks){
if(!(chunck = item->data)){
continue;
}
if((ret = trtp_rtcp_sdes_chunck_serialize_to(chunck, pdata, size))){
TSK_DEBUG_ERROR("Failed to serialize SDES chunck");
goto bail;
}
chunck_size = trtp_rtcp_sdes_chunck_get_size(chunck);
pdata += chunck_size;
size -= chunck_size;
}
}
bail:
return ret;
}
int trtp_rtcp_report_sdes_add_chunck(trtp_rtcp_report_sdes_t* self, trtp_rtcp_sdes_chunck_t* chunck)
{
if(!self || !self->chuncks || !chunck){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
chunck = tsk_object_ref(chunck);
TRTP_RTCP_PACKET(self)->header->length_in_bytes += (uint32_t)trtp_rtcp_sdes_chunck_get_size(chunck);
TRTP_RTCP_PACKET(self)->header->length_in_words_minus1 = ((TRTP_RTCP_PACKET(self)->header->length_in_bytes >> 2) - 1)
+ ((TRTP_RTCP_PACKET(self)->header->length_in_bytes & 0x03) ? 1 : 0);
++TRTP_RTCP_PACKET(self)->header->rc;
tsk_list_push_back_data(self->chuncks, (void**)&chunck);
return 0;
}
tsk_size_t trtp_rtcp_report_sdes_get_size(const trtp_rtcp_report_sdes_t* self)
{
if(!self){
TSK_DEBUG_ERROR("Invalid parameter");
return 0;
}
else{
tsk_size_t size = TRTP_RTCP_HEADER_SIZE;
const tsk_list_item_t* item;
tsk_list_foreach(item, self->chuncks){
size += trtp_rtcp_sdes_chunck_get_size(TRTP_RTCP_SDES_CHUNCK(item->data));
}
return size;
}
}
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