1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#ifndef AVCODEC_PACKET_INTERNAL_H
20#define AVCODEC_PACKET_INTERNAL_H
21
22#include <stdint.h>
23
24#include "packet.h"
25
26typedef struct PacketListEntry {
27    struct PacketListEntry *next;
28    AVPacket pkt;
29} PacketListEntry;
30
31typedef struct PacketList {
32    PacketListEntry *head, *tail;
33} PacketList;
34
35/**
36 * Append an AVPacket to the list.
37 *
38 * @param list  A PacketList
39 * @param pkt   The packet being appended. The data described in it will
40 *              be made reference counted if it isn't already.
41 * @param copy  A callback to copy the contents of the packet to the list.
42                May be null, in which case the packet's reference will be
43                moved to the list.
44 * @return 0 on success, negative AVERROR value on failure. On failure,
45           the packet and the list are unchanged.
46 */
47int avpriv_packet_list_put(PacketList *list, AVPacket *pkt,
48                           int (*copy)(AVPacket *dst, const AVPacket *src),
49                           int flags);
50
51/**
52 * Remove the oldest AVPacket in the list and return it.
53 *
54 * @note The pkt will be overwritten completely on success. The caller
55 *       owns the packet and must unref it by itself.
56 *
57 * @param head A pointer to a PacketList struct
58 * @param pkt  Pointer to an AVPacket struct
59 * @return 0 on success, and a packet is returned. AVERROR(EAGAIN) if
60 *         the list was empty.
61 */
62int avpriv_packet_list_get(PacketList *list, AVPacket *pkt);
63
64/**
65 * Wipe the list and unref all the packets in it.
66 */
67void avpriv_packet_list_free(PacketList *list);
68
69int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type);
70
71int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp);
72
73#endif // AVCODEC_PACKET_INTERNAL_H
74