/*
 * This file is part of mpv.
 *
 * mpv is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * mpv 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MPLAYER_DEMUX_PACKET_H
#define MPLAYER_DEMUX_PACKET_H

#include <stdbool.h>
#include <stddef.h>
#include <inttypes.h>

// Holds one packet/frame/whatever
typedef struct demux_packet {
    int len;
    unsigned char *buffer;

    double pts;
    double dts;
    double duration;
    bool keyframe;

    int64_t pos;        // position in source file byte stream
    int stream;         // source stream index

    // segmentation (ordered chapters, EDL)
    bool segmented;
    struct mp_codec_params *codec;  // set to non-NULL iff segmented is set
    double start, end;              // set to non-NOPTS iff segmented is set

    // private
    struct demux_packet *next;
    struct AVPacket *avpacket;   // keep the buffer allocation and sidedata
    double kf_seek_pts; // demux.c internal: seek pts for keyframe range
    struct mp_packet_tags *metadata; // timed metadata (demux.c internal)
} demux_packet_t;

struct AVBufferRef;

struct demux_packet *new_demux_packet(size_t len);
struct demux_packet *new_demux_packet_from_avpacket(struct AVPacket *avpkt);
struct demux_packet *new_demux_packet_from(void *data, size_t len);
struct demux_packet *new_demux_packet_from_buf(struct AVBufferRef *buf);
void demux_packet_shorten(struct demux_packet *dp, size_t len);
void free_demux_packet(struct demux_packet *dp);
struct demux_packet *demux_copy_packet(struct demux_packet *dp);
size_t demux_packet_estimate_total_size(struct demux_packet *dp);

void demux_packet_copy_attribs(struct demux_packet *dst, struct demux_packet *src);

int demux_packet_set_padding(struct demux_packet *dp, int start, int end);
int demux_packet_add_blockadditional(struct demux_packet *dp, uint64_t id,
                                     void *data, size_t size);

#endif /* MPLAYER_DEMUX_PACKET_H */