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/*
* 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 {
double pts;
double dts;
double duration;
int64_t pos; // position in source file byte stream
union {
// Normally valid for packets.
struct {
unsigned char *buffer;
size_t len;
};
// Used if is_cached==true, special uses only.
struct {
uint64_t pos;
} cached_data;
};
int stream; // source stream index (typically sh_stream.index)
bool keyframe;
// backward playback
bool back_restart : 1; // restart point (reverse and return previous frames)
bool back_preroll : 1; // initial discarded frame for smooth decoder reinit
// If true, cached_data is valid, while buffer/len are not.
bool is_cached : 1;
// 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
// subtitles only
bool animated;
bool seen;
int seen_pos;
double sub_duration;
// private
struct demux_packet *next;
struct AVPacket *avpacket; // keep the buffer allocation and sidedata
uint64_t cum_pos; // demux.c internal: cumulative size until _start_ of pkt
} 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);
void demux_packet_unref_contents(struct demux_packet *dp);
#endif /* MPLAYER_DEMUX_PACKET_H */
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