mirror of
https://github.com/mpv-player/mpv
synced 2024-12-11 09:25:56 +00:00
dd491c0d28
in other places. This removes platform specific checks and prevents repeated definitions of O_BINARY. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30850 b3059339-0415-0410-9bf9-f77b7e298cf2
348 lines
10 KiB
C
348 lines
10 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer 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 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer 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 along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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 "config.h"
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#include "mp_msg.h"
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#include "url.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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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#define STREAMTYPE_DUMMY -1 // for placeholders, when the actual reading is handled in the demuxer
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#define STREAMTYPE_FILE 0 // read from seekable file
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#define STREAMTYPE_VCD 1 // raw mode-2 CDROM reading, 2324 bytes/sector
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#define STREAMTYPE_STREAM 2 // same as FILE but no seeking (for net/stdin)
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#define STREAMTYPE_DVD 3 // libdvdread
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#define STREAMTYPE_MEMORY 4 // read data from memory area
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#define STREAMTYPE_PLAYLIST 6 // FIXME!!! same as STREAMTYPE_FILE now
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#define STREAMTYPE_DS 8 // read from a demuxer stream
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#define STREAMTYPE_DVDNAV 9 // we cannot safely "seek" in this...
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#define STREAMTYPE_CDDA 10 // raw audio CD reader
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#define STREAMTYPE_SMB 11 // smb:// url, using libsmbclient (samba)
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#define STREAMTYPE_VCDBINCUE 12 // vcd directly from bin/cue files
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#define STREAMTYPE_DVB 13
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#define STREAMTYPE_VSTREAM 14
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#define STREAMTYPE_SDP 15
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#define STREAMTYPE_PVR 16
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#define STREAMTYPE_TV 17
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#define STREAMTYPE_MF 18
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#define STREAMTYPE_RADIO 19
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#define STREAM_BUFFER_SIZE 2048
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#define VCD_SECTOR_SIZE 2352
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#define VCD_SECTOR_OFFS 24
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#define VCD_SECTOR_DATA 2324
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/// atm it will always use mode == STREAM_READ
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/// streams that use the new api should check the mode at open
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#define STREAM_READ 0
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#define STREAM_WRITE 1
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/// Seek flags, if not mannualy set and s->seek isn't NULL
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/// MP_STREAM_SEEK is automaticly set
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#define MP_STREAM_SEEK_BW 2
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#define MP_STREAM_SEEK_FW 4
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#define MP_STREAM_SEEK (MP_STREAM_SEEK_BW|MP_STREAM_SEEK_FW)
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/** This is a HACK for live555 that does not respect the
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separation between stream an demuxer and thus is not
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actually a stream cache can not be used */
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#define STREAM_NON_CACHEABLE 8
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//////////// Open return code
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#define STREAM_REDIRECTED -2
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/// This can't open the requested protocol (used by stream wich have a
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/// * protocol when they don't know the requested protocol)
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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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#define MAX_STREAM_PROTOCOLS 10
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#define STREAM_CTRL_RESET 0
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#define STREAM_CTRL_GET_TIME_LENGTH 1
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#define STREAM_CTRL_SEEK_TO_CHAPTER 2
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#define STREAM_CTRL_GET_CURRENT_CHAPTER 3
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#define STREAM_CTRL_GET_NUM_CHAPTERS 4
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#define STREAM_CTRL_GET_CURRENT_TIME 5
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#define STREAM_CTRL_SEEK_TO_TIME 6
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#define STREAM_CTRL_GET_SIZE 7
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#define STREAM_CTRL_GET_ASPECT_RATIO 8
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#define STREAM_CTRL_GET_NUM_ANGLES 9
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#define STREAM_CTRL_GET_ANGLE 10
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#define STREAM_CTRL_SET_ANGLE 11
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typedef enum {
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streaming_stopped_e,
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streaming_playing_e
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} streaming_status;
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typedef struct streaming_control {
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URL_t *url;
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streaming_status status;
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int buffering; // boolean
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unsigned int prebuffer_size;
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char *buffer;
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unsigned int buffer_size;
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unsigned int buffer_pos;
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unsigned int bandwidth; // The downstream available
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int (*streaming_read)( int fd, char *buffer, int buffer_size, struct streaming_control *stream_ctrl );
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int (*streaming_seek)( int fd, off_t pos, struct streaming_control *stream_ctrl );
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void *data;
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} streaming_ctrl_t;
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struct stream_st;
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typedef struct stream_info_st {
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const char *info;
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const char *name;
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const char *author;
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const char *comment;
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/// mode isn't used atm (ie always READ) but it shouldn't be ignored
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/// opts is at least in it's defaults settings and may have been
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/// altered by url parsing if enabled and the options string parsing.
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int (*open)(struct stream_st* st, int mode, void* opts, int* file_format);
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const char* protocols[MAX_STREAM_PROTOCOLS];
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const void* opts;
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int opts_url; /* If this is 1 we will parse the url as an option string
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* too. Otherwise options are only parsed from the
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* options string given to open_stream_plugin */
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} stream_info_t;
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typedef struct stream_st {
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// Read
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int (*fill_buffer)(struct stream_st *s, char* buffer, int max_len);
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// Write
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int (*write_buffer)(struct stream_st *s, char* buffer, int len);
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// Seek
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int (*seek)(struct stream_st *s,off_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_st *s,int cmd,void* arg);
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// Close
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void (*close)(struct stream_st *s);
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int fd; // file descriptor, see man open(2)
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int type; // see STREAMTYPE_*
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int flags;
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int sector_size; // sector size (seek will be aligned on this size if non 0)
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unsigned int buf_pos,buf_len;
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off_t pos,start_pos,end_pos;
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int eof;
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int mode; //STREAM_READ or STREAM_WRITE
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unsigned int cache_pid;
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void* cache_data;
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void* priv; // used for DVD, TV, RTSP etc
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char* url; // strdup() of filename/url
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#ifdef CONFIG_NETWORK
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streaming_ctrl_t *streaming_ctrl;
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#endif
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unsigned char buffer[STREAM_BUFFER_SIZE>VCD_SECTOR_SIZE?STREAM_BUFFER_SIZE:VCD_SECTOR_SIZE];
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} stream_t;
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#ifdef CONFIG_NETWORK
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#include "network.h"
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#endif
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int stream_fill_buffer(stream_t *s);
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int stream_seek_long(stream_t *s, off_t pos);
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#ifdef CONFIG_STREAM_CACHE
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int stream_enable_cache(stream_t *stream,int size,int min,int prefill);
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int cache_stream_fill_buffer(stream_t *s);
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int cache_stream_seek_long(stream_t *s,off_t pos);
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#else
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// no cache, define wrappers:
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#define cache_stream_fill_buffer(x) stream_fill_buffer(x)
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#define cache_stream_seek_long(x,y) stream_seek_long(x,y)
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#define stream_enable_cache(x,y,z,w) 1
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#endif
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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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return (s->buf_pos<s->buf_len)?s->buffer[s->buf_pos++]:
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(cache_stream_fill_buffer(s)?s->buffer[s->buf_pos++]:-256);
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// if(s->buf_pos<s->buf_len) return s->buffer[s->buf_pos++];
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// stream_fill_buffer(s);
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// if(s->buf_pos<s->buf_len) return s->buffer[s->buf_pos++];
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// return 0; // EOF
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}
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inline static unsigned int stream_read_word(stream_t *s){
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int x,y;
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x=stream_read_char(s);
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y=stream_read_char(s);
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return (x<<8)|y;
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}
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inline static unsigned int stream_read_dword(stream_t *s){
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unsigned int y;
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y=stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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return y;
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}
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#define stream_read_fourcc stream_read_dword_le
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inline static unsigned int stream_read_word_le(stream_t *s){
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int x,y;
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x=stream_read_char(s);
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y=stream_read_char(s);
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return (y<<8)|x;
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}
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inline static unsigned int stream_read_dword_le(stream_t *s){
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unsigned int y;
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y=stream_read_char(s);
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y|=stream_read_char(s)<<8;
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y|=stream_read_char(s)<<16;
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y|=stream_read_char(s)<<24;
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return y;
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}
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inline static uint64_t stream_read_qword(stream_t *s){
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uint64_t y;
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y = stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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return y;
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}
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inline static uint64_t stream_read_qword_le(stream_t *s){
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uint64_t y;
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y = stream_read_dword_le(s);
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y|=(uint64_t)stream_read_dword_le(s)<<32;
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return y;
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}
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inline static unsigned int stream_read_int24(stream_t *s){
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unsigned int y;
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y = stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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y=(y<<8)|stream_read_char(s);
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return y;
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}
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inline static int stream_read(stream_t *s,char* mem,int total){
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int len=total;
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while(len>0){
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int x;
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x=s->buf_len-s->buf_pos;
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if(x==0){
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if(!cache_stream_fill_buffer(s)) return total-len; // EOF
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x=s->buf_len-s->buf_pos;
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}
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if(s->buf_pos>s->buf_len) mp_msg(MSGT_DEMUX, MSGL_WARN, "stream_read: WARNING! s->buf_pos>s->buf_len\n");
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if(x>len) x=len;
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memcpy(mem,&s->buffer[s->buf_pos],x);
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s->buf_pos+=x; mem+=x; len-=x;
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}
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return total;
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}
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unsigned char* stream_read_line(stream_t *s,unsigned char* mem, int max, int utf16);
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inline static int stream_eof(stream_t *s){
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return s->eof;
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}
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inline static off_t stream_tell(stream_t *s){
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return s->pos+s->buf_pos-s->buf_len;
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}
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inline static int stream_seek(stream_t *s,off_t pos){
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mp_dbg(MSGT_DEMUX, MSGL_DBG3, "seek to 0x%qX\n",(long long)pos);
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if(s->eof)
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return 0;
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if(pos<s->pos){
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off_t x=pos-(s->pos-s->buf_len);
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if(x>=0){
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s->buf_pos=x;
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// putchar('*');fflush(stdout);
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return 1;
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}
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}
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return cache_stream_seek_long(s,pos);
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}
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inline static int stream_skip(stream_t *s,off_t len){
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if( (len<0 && (s->flags & MP_STREAM_SEEK_BW)) || (len>2*STREAM_BUFFER_SIZE && (s->flags & MP_STREAM_SEEK_FW)) ) {
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// negative or big skip!
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return stream_seek(s,stream_tell(s)+len);
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}
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while(len>0){
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int x=s->buf_len-s->buf_pos;
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if(x==0){
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if(!cache_stream_fill_buffer(s)) return 0; // EOF
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x=s->buf_len-s->buf_pos;
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}
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if(x>len) x=len;
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//memcpy(mem,&s->buf[s->buf_pos],x);
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s->buf_pos+=x; len-=x;
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}
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return 1;
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}
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void stream_reset(stream_t *s);
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int stream_control(stream_t *s, int cmd, void *arg);
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stream_t* new_stream(int fd,int type);
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void free_stream(stream_t *s);
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stream_t* new_memory_stream(unsigned char* data,int len);
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stream_t* open_stream(const char* filename,char** options,int* file_format);
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stream_t* open_stream_full(const char* filename,int mode, char** options, int* file_format);
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stream_t* open_output_stream(const char* filename,char** options);
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/// Set the callback to be used by libstream to check for user
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/// interruption during long blocking operations (cache filling, etc).
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void stream_set_interrupt_callback(int (*cb)(int));
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/// Call the interrupt checking callback if there is one.
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int stream_check_interrupt(int time);
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extern int dvd_title;
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extern int dvd_chapter;
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extern int dvd_last_chapter;
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extern int dvd_angle;
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extern char * audio_stream;
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typedef struct {
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int id; // 0 - 31 mpeg; 128 - 159 ac3; 160 - 191 pcm
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int language;
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int type;
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int channels;
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} stream_language_t;
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#endif /* MPLAYER_STREAM_H */
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