102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
/**
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* Packet management
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* Copyright (C) 2008 Andreas Öman
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*
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* This program 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 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 <libhts/htsatomic.h>
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#include "tvhead.h"
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#include "packet.h"
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#include "string.h"
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/*
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*
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*/
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static void
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pkt_destroy(th_pkt_t *pkt)
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{
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free(pkt->pkt_payload);
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free(pkt);
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}
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/**
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* Allocate a new packet and give it a refcount of one (which caller is
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* suppoed to take care of)
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*/
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th_pkt_t *
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pkt_alloc(void *data, size_t datalen, int64_t pts, int64_t dts)
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{
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th_pkt_t *pkt;
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pkt = calloc(1, sizeof(th_pkt_t));
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pkt->pkt_payloadlen = datalen;
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if(datalen > 0) {
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pkt->pkt_payload = malloc(datalen + FF_INPUT_BUFFER_PADDING_SIZE);
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if(data != NULL)
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memcpy(pkt->pkt_payload, data, datalen);
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}
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pkt->pkt_dts = dts;
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pkt->pkt_pts = pts;
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pkt->pkt_refcount = 1;
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return pkt;
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}
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/**
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*
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*/
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void
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pkt_ref_dec(th_pkt_t *pkt)
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{
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if((atomic_add(&pkt->pkt_refcount, -1)) == 1)
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pkt_destroy(pkt);
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}
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/**
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*
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*/
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void
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pkt_ref_inc(th_pkt_t *pkt)
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{
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atomic_add(&pkt->pkt_refcount, 1);
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}
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/**
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*
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*/
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void
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pkt_ref_inc_poly(th_pkt_t *pkt, int n)
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{
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atomic_add(&pkt->pkt_refcount, n);
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}
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/**
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*
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*/
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void
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pktref_clear_queue(struct th_pktref_queue *q)
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{
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th_pktref_t *pr;
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while((pr = TAILQ_FIRST(q)) != NULL) {
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TAILQ_REMOVE(q, pr, pr_link);
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pkt_ref_dec(pr->pr_pkt);
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free(pr);
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}
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}
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