106 lines
2 KiB
C
106 lines
2 KiB
C
/**
|
|
* Packet management
|
|
* Copyright (C) 2008 Andreas Öman
|
|
*
|
|
* 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 3 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 "tvhead.h"
|
|
#include "packet.h"
|
|
#include "string.h"
|
|
|
|
static pthread_mutex_t refmutex = PTHREAD_MUTEX_INITIALIZER;
|
|
|
|
|
|
/*
|
|
*
|
|
*/
|
|
static void
|
|
pkt_destroy(th_pkt_t *pkt)
|
|
{
|
|
free(pkt->pkt_payload);
|
|
free(pkt);
|
|
}
|
|
|
|
|
|
/**
|
|
* Allocate a new packet and give it a refcount of one (which caller is
|
|
* suppoed to take care of)
|
|
*/
|
|
th_pkt_t *
|
|
pkt_alloc(void *data, size_t datalen, int64_t pts, int64_t dts)
|
|
{
|
|
th_pkt_t *pkt;
|
|
|
|
pkt = calloc(1, sizeof(th_pkt_t));
|
|
pkt->pkt_payloadlen = datalen;
|
|
if(datalen > 0) {
|
|
pkt->pkt_payload = malloc(datalen + FF_INPUT_BUFFER_PADDING_SIZE);
|
|
if(data != NULL)
|
|
memcpy(pkt->pkt_payload, data, datalen);
|
|
}
|
|
|
|
pkt->pkt_dts = dts;
|
|
pkt->pkt_pts = pts;
|
|
pkt->pkt_refcount = 1;
|
|
return pkt;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
void
|
|
pkt_ref_dec(th_pkt_t *pkt)
|
|
{
|
|
if(pkt->pkt_refcount == 1) {
|
|
pkt_destroy(pkt);
|
|
return;
|
|
}
|
|
|
|
/* Use atomic decrease */
|
|
pthread_mutex_lock(&refmutex);
|
|
pkt->pkt_refcount--;
|
|
pthread_mutex_unlock(&refmutex);
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
void
|
|
pkt_ref_inc(th_pkt_t *pkt)
|
|
{
|
|
/* Use atomic increase */
|
|
pthread_mutex_lock(&refmutex);
|
|
pkt->pkt_refcount++;
|
|
pthread_mutex_unlock(&refmutex);
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
void
|
|
pktref_clear_queue(struct th_pktref_queue *q)
|
|
{
|
|
th_pktref_t *pr;
|
|
|
|
while((pr = TAILQ_FIRST(q)) != NULL) {
|
|
TAILQ_REMOVE(q, pr, pr_link);
|
|
pkt_ref_dec(pr->pr_pkt);
|
|
free(pr);
|
|
}
|
|
}
|