107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/*
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* Packet nanagement
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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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#ifndef PACKET_H_
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#define PACKET_H_
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typedef struct pktbuf {
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int pb_refcount;
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uint8_t *pb_data;
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size_t pb_size;
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} pktbuf_t;
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/**
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* Packets
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*/
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#define PKT_I_FRAME 1
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#define PKT_P_FRAME 2
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#define PKT_B_FRAME 3
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#define PKT_NTYPES 4
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typedef struct th_pkt {
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int64_t pkt_dts;
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int64_t pkt_pts;
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int pkt_duration;
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int pkt_refcount;
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uint8_t pkt_commercial;
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uint8_t pkt_componentindex;
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uint8_t pkt_frametype;
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uint8_t pkt_field; // Set if packet is only a half frame (a field)
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uint8_t pkt_channels;
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uint8_t pkt_sri;
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uint16_t pkt_aspect_num;
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uint16_t pkt_aspect_den;
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pktbuf_t *pkt_payload;
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pktbuf_t *pkt_header;
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} th_pkt_t;
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/**
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* A packet reference
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*/
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typedef struct th_pktref {
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TAILQ_ENTRY(th_pktref) pr_link;
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th_pkt_t *pr_pkt;
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} th_pktref_t;
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/**
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*
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*/
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void pkt_ref_dec(th_pkt_t *pkt);
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void pkt_ref_inc(th_pkt_t *pkt);
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void pkt_ref_inc_poly(th_pkt_t *pkt, int n);
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void pktref_clear_queue(struct th_pktref_queue *q);
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// Reference count is transfered to queue
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void pktref_enqueue(struct th_pktref_queue *q, th_pkt_t *pkt);
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void pktref_remove(struct th_pktref_queue *q, th_pktref_t *pr);
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th_pkt_t *pkt_alloc(const void *data, size_t datalen, int64_t pts, int64_t dts);
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th_pkt_t *pkt_merge_header(th_pkt_t *pkt);
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th_pkt_t *pkt_copy_shallow(th_pkt_t *pkt);
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th_pktref_t *pktref_create(th_pkt_t *pkt);
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void pktbuf_ref_dec(pktbuf_t *pb);
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void pktbuf_ref_inc(pktbuf_t *pb);
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pktbuf_t *pktbuf_alloc(const void *data, size_t size);
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pktbuf_t *pktbuf_make(void *data, size_t size);
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#define pktbuf_len(pb) ((pb)->pb_size)
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#define pktbuf_ptr(pb) ((pb)->pb_data)
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#endif /* PACKET_H_ */
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