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/*
* Copyright (C) 2012 Doubango Telecom <http://www.doubango.org>
*
* Contact: Mamadou Diop <diopmamadou(at)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_rblock.h"
#include "tnet_endianness.h"
#include "tsk_debug.h"
/* 6.4.1 SR: Sender Report RTCP Packet
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
report | SSRC_1 (SSRC of first source) |
block +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1 | fraction lost | cumulative number of packets lost |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| extended highest sequence number received |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| interarrival jitter |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| last SR (LSR) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| delay since last SR (DLSR) |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*/
static tsk_object_t* trtp_rtcp_rblock_ctor(tsk_object_t * self, va_list * app)
{
trtp_rtcp_rblock_t *block = self;
if(block){
}
return self;
}
static tsk_object_t* trtp_rtcp_rblock_dtor(tsk_object_t * self)
{
trtp_rtcp_rblock_t *block = self;
if(block){
}
return self;
}
static const tsk_object_def_t trtp_rtcp_rblock_def_s =
{
sizeof(trtp_rtcp_rblock_t),
trtp_rtcp_rblock_ctor,
trtp_rtcp_rblock_dtor,
tsk_null,
};
const tsk_object_def_t *trtp_rtcp_rblock_def_t = &trtp_rtcp_rblock_def_s;
trtp_rtcp_rblock_t* trtp_rtcp_rblock_create_null()
{
return tsk_object_new(trtp_rtcp_rblock_def_t);
}
trtp_rtcp_rblock_t* trtp_rtcp_rblock_deserialize(const void* data, tsk_size_t size)
{
trtp_rtcp_rblock_t* rblock = tsk_null;
const uint8_t* pdata = (const uint8_t*)data;
if(!data || size < TRTP_RTCP_RBLOCK_SIZE){
TSK_DEBUG_ERROR("Invalid parameter");
return tsk_null;
}
if((rblock = trtp_rtcp_rblock_create_null())){
rblock->ssrc = (uint32_t)tnet_ntohl_2(pdata);
rblock->fraction = pdata[4];
rblock->cumulative_no_lost = (tnet_ntohl_2(&pdata[5]) >> 8) & 0xFFFFFF;
rblock->last_seq = (uint32_t)tnet_ntohl_2(&pdata[8]);
rblock->jitter = (uint32_t)tnet_ntohl_2(&pdata[12]);
rblock->lsr = (uint32_t)tnet_ntohl_2(&pdata[16]);
rblock->dlsr = (uint32_t)tnet_ntohl_2(&pdata[20]);
}
else{
TSK_DEBUG_ERROR("Failed to create report block object");
}
return rblock;
}
// Up to the
int trtp_rtcp_rblock_deserialize_list(const void* data, tsk_size_t _size, trtp_rtcp_rblocks_L_t* dest_list)
{
int32_t size = (int32_t)_size;
const uint8_t* pdata = (const uint8_t*)data;
trtp_rtcp_rblock_t* rblock;
if(!data || !size || !dest_list){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
while(size >= TRTP_RTCP_RBLOCK_SIZE){
if((rblock = trtp_rtcp_rblock_deserialize(pdata, size))){
tsk_list_push_back_data(dest_list, (void**)&rblock);
}
if((size -= TRTP_RTCP_RBLOCK_SIZE) > 0){
pdata += TRTP_RTCP_RBLOCK_SIZE;
}
}
return 0;
}
int trtp_rtcp_rblock_serialize_to(const trtp_rtcp_rblock_t* self, void* data, tsk_size_t size)
{
uint8_t* pdata = (uint8_t*)data;
if(!self || !data || size < TRTP_RTCP_RBLOCK_SIZE){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
pdata[0] = self->ssrc >> 24;
pdata[1] = (self->ssrc >> 16) & 0xFF;
pdata[2] = (self->ssrc >> 8) & 0xFF;
pdata[3] = (self->ssrc & 0xFF);
pdata[4] = self->fraction;
pdata[5] = (self->cumulative_no_lost >> 16) & 0xFF;
pdata[6] = (self->cumulative_no_lost >> 8) & 0xFF;
pdata[7] = (self->cumulative_no_lost & 0xFF);
pdata[8] = self->last_seq >> 24;
pdata[9] = (self->last_seq >> 16) & 0xFF;
pdata[10] = (self->last_seq >> 8) & 0xFF;
pdata[11] = (self->last_seq & 0xFF);
pdata[12] = self->jitter >> 24;
pdata[13] = (self->jitter >> 16) & 0xFF;
pdata[14] = (self->jitter >> 8) & 0xFF;
pdata[15] = (self->jitter & 0xFF);
pdata[16] = self->lsr >> 24;
pdata[17] = (self->lsr >> 16) & 0xFF;
pdata[18] = (self->lsr >> 8) & 0xFF;
pdata[19] = (self->lsr & 0xFF);
pdata[20] = self->dlsr >> 24;
pdata[21] = (self->dlsr >> 16) & 0xFF;
pdata[22] = (self->dlsr >> 8) & 0xFF;
pdata[23] = (self->dlsr & 0xFF);
return 0;
}
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