summaryrefslogtreecommitdiffstats
path: root/libmpdemux/stream.h
blob: f9aa74d9d289d2481c910d49bb227156b3f41db8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
#ifndef __STREAM_H
#define __STREAM_H

#include "mp_msg.h"
#include <string.h>
#include <inttypes.h>
#include <sys/types.h>

#define STREAMTYPE_DUMMY -1    // for placeholders, when the actual reading is handled in the demuxer
#define STREAMTYPE_FILE 0      // read from seekable file
#define STREAMTYPE_VCD  1      // raw mode-2 CDROM reading, 2324 bytes/sector
#define STREAMTYPE_STREAM 2    // same as FILE but no seeking (for net/stdin)
#define STREAMTYPE_DVD  3      // libdvdread
#define STREAMTYPE_MEMORY  4   // read data from memory area
#define STREAMTYPE_PLAYLIST 6  // FIXME!!! same as STREAMTYPE_FILE now
#define STREAMTYPE_DS   8      // read from a demuxer stream
#define STREAMTYPE_DVDNAV 9    // we cannot safely "seek" in this...
#define STREAMTYPE_CDDA 10     // raw audio CD reader
#define STREAMTYPE_SMB 11      // smb:// url, using libsmbclient (samba)
#define STREAMTYPE_VCDBINCUE 12      // vcd directly from bin/cue files
#define STREAMTYPE_DVB 13

#define STREAM_BUFFER_SIZE 2048

#define VCD_SECTOR_SIZE 2352
#define VCD_SECTOR_OFFS 24
#define VCD_SECTOR_DATA 2324

/// atm it will always use mode == STREAM_READ
/// streams that use the new api should check the mode at open
#define STREAM_READ  0
#define STREAM_WRITE 1
/// Seek flags, if not mannualy set and s->seek isn't NULL
/// STREAM_SEEK is automaticly set
#define STREAM_SEEK_BW  2
#define STREAM_SEEK_FW  4
#define STREAM_SEEK  (STREAM_SEEK_BW|STREAM_SEEK_FW)

//////////// Open return code
/// This can't open the requested protocol (used by stream wich have a
/// * protocol when they don't know the requested protocol)
#define STREAM_UNSUPORTED -1
#define STREAM_ERROR 0
#define STREAM_OK    1

#define MAX_STREAM_PROTOCOLS 10

#define STREAM_CTRL_RESET 0

#ifdef MPLAYER_NETWORK
#include "network.h"
#endif

struct stream_st;
typedef struct stream_info_st {
  const char *info;
  const char *name;
  const char *author;
  const char *comment;
  /// mode isn't used atm (ie always READ) but it shouldn't be ignored
  /// opts is at least in it's defaults settings and may have been
  /// altered by url parsing if enabled and the options string parsing.
  int (*open)(struct stream_st* st, int mode, void* opts, int* file_format);
  char* protocols[MAX_STREAM_PROTOCOLS];
  void* opts;
  int opts_url; /* If this is 1 we will parse the url as an option string
		 * too. Otherwise options are only parsed from the
		 * options string given to open_stream_plugin */
} stream_info_t;

typedef struct stream_st {
  // Read
  int (*fill_buffer)(struct stream_st *s, char* buffer, int max_len);
  // Write
  int (*write_buffer)(struct stream_st *s, char* buffer, int len);
  // Seek
  int (*seek)(struct stream_st *s,off_t pos);
  // Control
  // Will be later used to let streams like dvd and cdda report
  // their structure (ie tracks, chapters, etc)
  int (*control)(struct stream_st *s,int cmd,void* arg);
  // Close
  void (*close)(struct stream_st *s);

  int fd;   // file descriptor, see man open(2)
  int type; // see STREAMTYPE_*
  int flags;
  int sector_size; // sector size (seek will be aligned on this size if non 0)
  unsigned int buf_pos,buf_len;
  off_t pos,start_pos,end_pos;
  int eof;
  unsigned int cache_pid;
  void* cache_data;
  void* priv; // used for DVD, TV, RTSP etc
  char* url;  // strdup() of filename/url
#ifdef MPLAYER_NETWORK
  streaming_ctrl_t *streaming_ctrl;
#endif
  unsigned char buffer[STREAM_BUFFER_SIZE>VCD_SECTOR_SIZE?STREAM_BUFFER_SIZE:VCD_SECTOR_SIZE];
} stream_t;

#ifdef USE_STREAM_CACHE
int stream_enable_cache(stream_t *stream,int size,int min,int prefill);
int cache_stream_fill_buffer(stream_t *s);
int cache_stream_seek_long(stream_t *s,off_t pos);
#else
// no cache, define wrappers:
#define cache_stream_fill_buffer(x) stream_fill_buffer(x)
#define cache_stream_seek_long(x,y) stream_seek_long(x,y)
#define stream_enable_cache(x,y,z,w) 1
#endif

inline static int stream_read_char(stream_t *s){
  return (s->buf_pos<s->buf_len)?s->buffer[s->buf_pos++]:
    (cache_stream_fill_buffer(s)?s->buffer[s->buf_pos++]:-256);
//  if(s->buf_pos<s->buf_len) return s->buffer[s->buf_pos++];
//  stream_fill_buffer(s);
//  if(s->buf_pos<s->buf_len) return s->buffer[s->buf_pos++];
//  return 0; // EOF
}

inline static unsigned int stream_read_word(stream_t *s){
  int x,y;
  x=stream_read_char(s);
  y=stream_read_char(s);
  return (x<<8)|y;
}

inline static unsigned int stream_read_dword(stream_t *s){
  unsigned int y;
  y=stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  return y;
}

#define stream_read_fourcc stream_read_dword_le

inline static unsigned int stream_read_word_le(stream_t *s){
  int x,y;
  x=stream_read_char(s);
  y=stream_read_char(s);
  return (y<<8)|x;
}

inline static unsigned int stream_read_dword_le(stream_t *s){
  unsigned int y;
  y=stream_read_char(s);
  y|=stream_read_char(s)<<8;
  y|=stream_read_char(s)<<16;
  y|=stream_read_char(s)<<24;
  return y;
}

inline static uint64_t stream_read_qword(stream_t *s){
  uint64_t y;
  y = stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  return y;
}

inline static unsigned int stream_read_int24(stream_t *s){
  unsigned int y;
  y = stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  y=(y<<8)|stream_read_char(s);
  return y;
}

inline static int stream_read(stream_t *s,char* mem,int total){
  int len=total;
  while(len>0){
    int x;
    x=s->buf_len-s->buf_pos;
    if(x==0){
      if(!cache_stream_fill_buffer(s)) return total-len; // EOF
      x=s->buf_len-s->buf_pos;
    }
    if(s->buf_pos>s->buf_len) mp_msg(MSGT_DEMUX, MSGL_WARN, "stream_read: WARNING! s->buf_pos>s->buf_len\n");
    if(x>len) x=len;
    memcpy(mem,&s->buffer[s->buf_pos],x);
    s->buf_pos+=x; mem+=x; len-=x;
  }
  return total;
}

inline static int stream_eof(stream_t *s){
  return s->eof;
}

inline static off_t stream_tell(stream_t *s){
  return s->pos+s->buf_pos-s->buf_len;
}

inline static int stream_seek(stream_t *s,off_t pos){

  mp_dbg(MSGT_DEMUX, MSGL_DBG3, "seek to 0x%qX\n",(long long)pos);

  if(pos<s->pos){
    off_t x=pos-(s->pos-s->buf_len);
    if(x>=0){
      s->buf_pos=x;
//      putchar('*');fflush(stdout);
      return 1;
    }
  }
  
  return cache_stream_seek_long(s,pos);
}

inline static int stream_skip(stream_t *s,off_t len){
  if(len<0 || (len>2*STREAM_BUFFER_SIZE && s->type!=STREAMTYPE_STREAM)){
    // negative or big skip!
    return stream_seek(s,stream_tell(s)+len);
  }
  while(len>0){
    int x=s->buf_len-s->buf_pos;
    if(x==0){
      if(!cache_stream_fill_buffer(s)) return 0; // EOF
      x=s->buf_len-s->buf_pos;
    }
    if(x>len) x=len;
    //memcpy(mem,&s->buf[s->buf_pos],x);
    s->buf_pos+=x; len-=x;
  }
  return 1;
}

void stream_reset(stream_t *s);
stream_t* new_stream(int fd,int type);
void free_stream(stream_t *s);
stream_t* new_memory_stream(unsigned char* data,int len);
stream_t* open_stream(char* filename,char** options,int* file_format);
stream_t* open_stream_full(char* filename,int mode, char** options, int* file_format);

//#ifdef USE_DVDREAD
struct config;
extern int dvd_title;
extern int dvd_chapter;
extern int dvd_last_chapter;
extern int dvd_angle;
int dvd_parse_chapter_range(struct config*, const char*);
//#endif

extern int dvbin_param_on;

extern char * audio_stream;

#ifdef USE_DVDNAV
#include "dvdnav_stream.h"
#endif

#ifdef USE_DVDREAD

#ifdef USE_MPDVDKIT
#if (USE_MPDVDKIT == 2)
#include "../libmpdvdkit2/dvd_reader.h"
#include "../libmpdvdkit2/ifo_types.h"
#include "../libmpdvdkit2/ifo_read.h"
#include "../libmpdvdkit2/nav_read.h"
#else
#include "../libmpdvdkit/dvd_reader.h"
#include "../libmpdvdkit/ifo_types.h"
#include "../libmpdvdkit/ifo_read.h"
#include "../libmpdvdkit/nav_read.h"
#endif
#else
#include <dvdread/dvd_reader.h>
#include <dvdread/ifo_types.h>
#include <dvdread/ifo_read.h>
#include <dvdread/nav_read.h>
#endif

typedef struct {
 int id; // 0 - 31 mpeg; 128 - 159 ac3; 160 - 191 pcm
 int language; 
 int type;
 int channels;
} stream_language_t;

typedef struct {
  dvd_reader_t *dvd;
  dvd_file_t *title;
  ifo_handle_t *vmg_file;
  tt_srpt_t *tt_srpt;
  ifo_handle_t *vts_file;
  vts_ptt_srpt_t *vts_ptt_srpt;
  pgc_t *cur_pgc;
//
  int cur_cell;
  int last_cell;
  int cur_pack;
  int cell_last_pack;
// Navi:
  int packs_left;
  dsi_t dsi_pack;
  int angle_seek;
// audio datas
  int nr_of_channels;
  stream_language_t audio_streams[32];
// subtitles
  int nr_of_subtitles;
  stream_language_t subtitles[32];
} dvd_priv_t;

int dvd_aid_from_lang(stream_t *stream, unsigned char* lang);
int dvd_sid_from_lang(stream_t *stream, unsigned char* lang);
int dvd_chapter_from_cell(dvd_priv_t *dvd,int title,int cell);

#endif
							    
#endif // __STREAM_H