mirror of
https://github.com/mpv-player/mpv
synced 2024-10-30 04:46:41 +01:00
185e63a3e2
Remove our own hacky reconnection code, and use libavformat's feature for that. It's disabled by default, and until recently it did not work too well. This has been fixed in recent ffmpeg git master[1], so there's no reason to keep our own code. [1] FFmpeg/FFmpeg@8a108bdea0 We set "reconnect_delay_max" to 7, which limits the maximum time it waits. Since libavformat doubles the wait time on each reconnect attempt (starting with 1), and stops trying to reconnect once the wait time is over the reconnect_delay_max value, this allows for 4 reconnection attempts which should add to 11 seconds maximum wait time. The default is 120, which seems too high for normal playback use. (The user can still override these parameters with --stream-lavf-o.)
280 lines
8.6 KiB
C
280 lines
8.6 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_STREAM_H
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#define MPLAYER_STREAM_H
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#include "common/msg.h"
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "misc/bstr.h"
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#define STREAM_BUFFER_SIZE 2048
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#define STREAM_MAX_SECTOR_SIZE (8 * 1024)
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// Max buffer for initial probe.
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#define STREAM_MAX_BUFFER_SIZE (2 * 1024 * 1024)
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// stream->mode
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#define STREAM_READ 0
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#define STREAM_WRITE 1
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// flags for stream_open_ext (this includes STREAM_READ and STREAM_WRITE)
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#define STREAM_SAFE_ONLY 4
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#define STREAM_NETWORK_ONLY 8
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#define STREAM_UNSAFE -3
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#define STREAM_NO_MATCH -2
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#define STREAM_UNSUPPORTED -1
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#define STREAM_ERROR 0
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#define STREAM_OK 1
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enum stream_ctrl {
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STREAM_CTRL_GET_SIZE = 1,
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// Cache
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STREAM_CTRL_GET_CACHE_INFO,
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STREAM_CTRL_SET_CACHE_SIZE,
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STREAM_CTRL_SET_READAHEAD,
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// stream_memory.c
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STREAM_CTRL_SET_CONTENTS,
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// stream_rar.c
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STREAM_CTRL_GET_BASE_FILENAME,
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// Certain network protocols
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STREAM_CTRL_AVSEEK,
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STREAM_CTRL_HAS_AVSEEK,
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STREAM_CTRL_GET_METADATA,
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// TV
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STREAM_CTRL_TV_SET_SCAN,
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STREAM_CTRL_SET_TV_FREQ,
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STREAM_CTRL_GET_TV_FREQ,
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STREAM_CTRL_SET_TV_COLORS,
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STREAM_CTRL_GET_TV_COLORS,
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STREAM_CTRL_TV_SET_NORM,
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STREAM_CTRL_TV_STEP_NORM,
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STREAM_CTRL_TV_SET_CHAN,
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STREAM_CTRL_TV_GET_CHAN,
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STREAM_CTRL_TV_STEP_CHAN,
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STREAM_CTRL_TV_LAST_CHAN,
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STREAM_CTRL_DVB_SET_CHANNEL,
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STREAM_CTRL_DVB_SET_CHANNEL_NAME,
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STREAM_CTRL_DVB_GET_CHANNEL_NAME,
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STREAM_CTRL_DVB_STEP_CHANNEL,
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// Optical discs
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STREAM_CTRL_GET_TIME_LENGTH,
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STREAM_CTRL_GET_DVD_INFO,
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STREAM_CTRL_GET_DISC_NAME,
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STREAM_CTRL_GET_NUM_CHAPTERS,
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STREAM_CTRL_GET_CURRENT_TIME,
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STREAM_CTRL_GET_CHAPTER_TIME,
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STREAM_CTRL_SEEK_TO_TIME,
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STREAM_CTRL_GET_ASPECT_RATIO,
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STREAM_CTRL_GET_NUM_ANGLES,
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STREAM_CTRL_GET_ANGLE,
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STREAM_CTRL_SET_ANGLE,
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STREAM_CTRL_GET_NUM_TITLES,
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STREAM_CTRL_GET_TITLE_LENGTH, // double* (in: title number, out: len)
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STREAM_CTRL_GET_LANG,
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STREAM_CTRL_GET_CURRENT_TITLE,
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STREAM_CTRL_SET_CURRENT_TITLE,
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};
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// for STREAM_CTRL_GET_CACHE_INFO
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struct stream_cache_info {
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int64_t size;
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int64_t fill;
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bool idle;
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int64_t speed;
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};
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struct stream_lang_req {
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int type; // STREAM_AUDIO, STREAM_SUB
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int id;
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char name[50];
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};
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struct stream_dvd_info_req {
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unsigned int palette[16];
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int num_subs;
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};
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// for STREAM_CTRL_SET_TV_COLORS
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#define TV_COLOR_BRIGHTNESS 1
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#define TV_COLOR_HUE 2
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#define TV_COLOR_SATURATION 3
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#define TV_COLOR_CONTRAST 4
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// for STREAM_CTRL_AVSEEK
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struct stream_avseek {
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int stream_index;
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int64_t timestamp;
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int flags;
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};
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struct stream;
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typedef struct stream_info_st {
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const char *name;
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// opts is set from ->opts
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int (*open)(struct stream *st);
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const char *const *protocols;
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bool can_write; // correctly checks for READ/WRITE modes
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bool is_safe; // opening is no security issue, even with remote provided URLs
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bool is_network; // used to restrict remote playlist entries to remote URLs
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} stream_info_t;
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typedef struct stream {
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const struct stream_info_st *info;
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// Read
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int (*fill_buffer)(struct stream *s, char *buffer, int max_len);
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// Write
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int (*write_buffer)(struct stream *s, char *buffer, int len);
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// Seek
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int (*seek)(struct stream *s, int64_t pos);
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// Control
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// Will be later used to let streams like dvd and cdda report
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// their structure (ie tracks, chapters, etc)
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int (*control)(struct stream *s, int cmd, void *arg);
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// Close
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void (*close)(struct stream *s);
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int sector_size; // sector size (seek will be aligned on this size if non 0)
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int read_chunk; // maximum amount of data to read at once to limit latency
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unsigned int buf_pos, buf_len;
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int64_t pos;
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int eof;
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int mode; //STREAM_READ or STREAM_WRITE
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void *priv; // used for DVD, TV, RTSP etc
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char *url; // filename/url (possibly including protocol prefix)
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char *path; // filename (url without protocol prefix)
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char *mime_type; // when HTTP streaming is used
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char *demuxer; // request demuxer to be used
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char *lavf_type; // name of expected demuxer type for lavf
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bool streaming : 1; // known to be a network stream if true
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bool seekable : 1; // presence of general byte seeking support
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bool fast_skip : 1; // consider stream fast enough to fw-seek by skipping
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bool is_network : 1; // original stream_info_t.is_network flag
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bool allow_caching : 1; // stream cache makes sense
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bool caching : 1; // is a cache, or accesses a cache
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bool is_local_file : 1; // from the filesystem
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bool is_directory : 1; // directory on the filesystem
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bool access_references : 1; // open other streams
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struct mp_log *log;
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struct mpv_global *global;
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struct mp_cancel *cancel; // cancellation notification
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struct stream *underlying; // e.g. cache wrapper
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// Includes additional padding in case sizes get rounded up by sector size.
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unsigned char buffer[];
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} stream_t;
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int stream_fill_buffer(stream_t *s);
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struct mp_cache_opts;
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bool stream_wants_cache(stream_t *stream, struct mp_cache_opts *opts);
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int stream_enable_cache_defaults(stream_t **stream);
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// Internal
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int stream_cache_init(stream_t *cache, stream_t *stream,
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struct mp_cache_opts *opts);
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int stream_file_cache_init(stream_t *cache, stream_t *stream,
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struct mp_cache_opts *opts);
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int stream_write_buffer(stream_t *s, unsigned char *buf, int len);
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inline static int stream_read_char(stream_t *s)
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{
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return (s->buf_pos < s->buf_len) ? s->buffer[s->buf_pos++] :
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(stream_fill_buffer(s) ? s->buffer[s->buf_pos++] : -256);
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}
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unsigned char *stream_read_line(stream_t *s, unsigned char *mem, int max,
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int utf16);
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int stream_skip_bom(struct stream *s);
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inline static int stream_eof(stream_t *s)
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{
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return s->eof;
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}
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inline static int64_t stream_tell(stream_t *s)
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{
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return s->pos + s->buf_pos - s->buf_len;
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}
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bool stream_skip(stream_t *s, int64_t len);
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bool stream_seek(stream_t *s, int64_t pos);
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int stream_read(stream_t *s, char *mem, int total);
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int stream_read_partial(stream_t *s, char *buf, int buf_size);
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struct bstr stream_peek(stream_t *s, int len);
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void stream_drop_buffers(stream_t *s);
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int64_t stream_get_size(stream_t *s);
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struct mpv_global;
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struct bstr stream_read_complete(struct stream *s, void *talloc_ctx,
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int max_size);
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struct bstr stream_read_file(const char *filename, void *talloc_ctx,
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struct mpv_global *global, int max_size);
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int stream_control(stream_t *s, int cmd, void *arg);
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void free_stream(stream_t *s);
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struct stream *stream_create(const char *url, int flags,
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struct mp_cancel *c, struct mpv_global *global);
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struct stream *stream_open(const char *filename, struct mpv_global *global);
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stream_t *open_output_stream(const char *filename, struct mpv_global *global);
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stream_t *open_memory_stream(void *data, int len);
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void mp_url_unescape_inplace(char *buf);
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char *mp_url_escape(void *talloc_ctx, const char *s, const char *ok);
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struct mp_cancel *mp_cancel_new(void *talloc_ctx);
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void mp_cancel_trigger(struct mp_cancel *c);
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bool mp_cancel_test(struct mp_cancel *c);
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bool mp_cancel_wait(struct mp_cancel *c, double timeout);
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void mp_cancel_reset(struct mp_cancel *c);
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void *mp_cancel_get_event(struct mp_cancel *c); // win32 HANDLE
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int mp_cancel_get_fd(struct mp_cancel *c);
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// stream_file.c
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char *mp_file_url_to_filename(void *talloc_ctx, bstr url);
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char *mp_file_get_path(void *talloc_ctx, bstr url);
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// stream_lavf.c
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struct AVDictionary;
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void mp_setup_av_network_options(struct AVDictionary **dict,
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struct mpv_global *global,
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struct mp_log *log);
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void stream_print_proto_list(struct mp_log *log);
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char **stream_get_proto_list(void);
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bool stream_has_proto(const char *proto);
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#endif /* MPLAYER_STREAM_H */
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