2 * This file is part of MPlayer.
4 * MPlayer is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * MPlayer is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 #ifndef MPLAYER_DEMUXER_H
20 #define MPLAYER_DEMUXER_H
22 #include <sys/types.h>
28 #include "stream/stream.h"
34 #ifdef HAVE_BUILTIN_EXPECT
35 #define likely(x) __builtin_expect ((x) != 0, 1)
36 #define unlikely(x) __builtin_expect ((x) != 0, 0)
39 #define unlikely(x) (x)
42 #define MAX_PACKS 4096
43 #define MAX_PACK_BYTES 0x8000000 // 128 MiB
45 #define DEMUXER_TYPE_UNKNOWN 0
46 #define DEMUXER_TYPE_MPEG_ES 1
47 #define DEMUXER_TYPE_MPEG_PS 2
48 #define DEMUXER_TYPE_AVI 3
49 #define DEMUXER_TYPE_AVI_NI 4
50 #define DEMUXER_TYPE_AVI_NINI 5
51 #define DEMUXER_TYPE_ASF 6
52 #define DEMUXER_TYPE_MOV 7
53 #define DEMUXER_TYPE_VIVO 8
54 #define DEMUXER_TYPE_TV 9
55 #define DEMUXER_TYPE_FLI 10
56 #define DEMUXER_TYPE_REAL 11
57 #define DEMUXER_TYPE_Y4M 12
58 #define DEMUXER_TYPE_FILM 14
59 #define DEMUXER_TYPE_ROQ 15
60 #define DEMUXER_TYPE_MF 16
61 #define DEMUXER_TYPE_AUDIO 17
62 #define DEMUXER_TYPE_OGG 18
63 #define DEMUXER_TYPE_RAWAUDIO 20
64 #define DEMUXER_TYPE_RTP 21
65 #define DEMUXER_TYPE_RAWDV 22
66 #define DEMUXER_TYPE_PVA 23
67 #define DEMUXER_TYPE_SMJPEG 24
68 #define DEMUXER_TYPE_XMMS 25
69 #define DEMUXER_TYPE_RAWVIDEO 26
70 #define DEMUXER_TYPE_MPEG4_ES 27
71 #define DEMUXER_TYPE_GIF 28
72 #define DEMUXER_TYPE_MPEG_TS 29
73 #define DEMUXER_TYPE_H264_ES 30
74 #define DEMUXER_TYPE_MATROSKA 31
75 #define DEMUXER_TYPE_REALAUDIO 32
76 #define DEMUXER_TYPE_MPEG_TY 33
77 #define DEMUXER_TYPE_LMLM4 34
78 #define DEMUXER_TYPE_LAVF 35
79 #define DEMUXER_TYPE_NSV 36
80 #define DEMUXER_TYPE_VQF 37
81 #define DEMUXER_TYPE_AVS 38
82 #define DEMUXER_TYPE_AAC 39
83 #define DEMUXER_TYPE_MPC 40
84 #define DEMUXER_TYPE_MPEG_PES 41
85 #define DEMUXER_TYPE_MPEG_GXF 42
86 #define DEMUXER_TYPE_NUT 43
87 #define DEMUXER_TYPE_LAVF_PREFERRED 44
88 #define DEMUXER_TYPE_RTP_NEMESI 45
89 #define DEMUXER_TYPE_MNG 46
91 // This should always match the higest demuxer type number.
92 // Unless you want to disallow users to force the demuxer to some types
93 #define DEMUXER_TYPE_MIN 0
94 #define DEMUXER_TYPE_MAX 46
96 #define DEMUXER_TYPE_DEMUXERS (1<<16)
97 // A virtual demuxer type for the network code
98 #define DEMUXER_TYPE_PLAYLIST (2<<16)
100 enum timestamp_type
{
106 // DEMUXER control commands/answers
107 #define DEMUXER_CTRL_NOTIMPL -1
108 #define DEMUXER_CTRL_DONTKNOW 0
109 #define DEMUXER_CTRL_OK 1
110 #define DEMUXER_CTRL_GUESS 2
111 #define DEMUXER_CTRL_GET_TIME_LENGTH 10
112 #define DEMUXER_CTRL_GET_PERCENT_POS 11
113 #define DEMUXER_CTRL_SWITCH_AUDIO 12
114 #define DEMUXER_CTRL_RESYNC 13
115 #define DEMUXER_CTRL_SWITCH_VIDEO 14
116 #define DEMUXER_CTRL_IDENTIFY_PROGRAM 15
117 #define DEMUXER_CTRL_CORRECT_PTS 16
119 #define SEEK_ABSOLUTE (1 << 0)
120 #define SEEK_FACTOR (1 << 1)
121 #define SEEK_FORWARD (1 << 2)
122 #define SEEK_BACKWARD (1 << 3)
124 #define MP_INPUT_BUFFER_PADDING_SIZE 64
126 // Holds one packet/frame/whatever
127 typedef struct demux_packet
{
132 off_t pos
; // position in index (AVI) or file (MPG)
133 unsigned char* buffer
;
134 int flags
; // keyframe, etc
135 int refcount
; //refcounter for the master packet, if 0, buffer can be free()d
136 struct demux_packet
*master
; //pointer to the master packet if this one is a cloned one
137 struct demux_packet
*next
;
140 typedef struct demux_stream
{
141 int buffer_pos
; // current buffer position
142 int buffer_size
; // current buffer size
143 unsigned char* buffer
; // current buffer, never free() it, always use free_demux_packet(buffer_ref);
144 double pts
; // current buffer's pts
145 int pts_bytes
; // number of bytes read after last pts stamp
146 int eof
; // end of demuxed stream? (true if all buffer empty)
147 off_t pos
; // position in the input stream (file)
148 off_t dpos
; // position in the demuxed stream
149 int pack_no
; // serial number of packet
150 int flags
; // flags of current packet (keyframe etc)
151 int non_interleaved
; // 1 if this stream is not properly interleaved,
152 // so e.g. subtitle handling must do explicit reads.
154 int packs
; // number of packets in buffer
155 int bytes
; // total bytes of packets in buffer
156 demux_packet_t
*first
; // read to current buffer from here
157 demux_packet_t
*last
; // append new packets from input stream to here
158 demux_packet_t
*current
;// needed for refcounting of the buffer
159 int id
; // stream ID (for multiple audio/video streams)
160 struct demuxer
*demuxer
; // parent demuxer structure (stream handler)
162 demux_packet_t
*asf_packet
; // read asf fragments here
165 unsigned int ss_mul
,ss_div
;
166 // ---- stream header ----
170 typedef struct demuxer_info
{
178 #define MAX_A_STREAMS 256
179 #define MAX_V_STREAMS 256
180 #define MAX_S_STREAMS 256
185 * Demuxer description structure
187 typedef struct demuxer_desc
{
188 const char *info
; ///< What is it (long name and/or description)
189 const char *name
; ///< Demuxer name, used with -demuxer switch
190 const char *shortdesc
; ///< Description printed at demuxer detection
191 const char *author
; ///< Demuxer author(s)
192 const char *comment
; ///< Comment, printed with -demuxer help
194 int type
; ///< DEMUXER_TYPE_xxx
195 int safe_check
; ///< If 1 detection is safe and fast, do it before file extension check
197 /// Check if can demux the file, return DEMUXER_TYPE_xxx on success
198 int (*check_file
)(struct demuxer
*demuxer
); ///< Mandatory if safe_check == 1, else optional
199 /// Get packets from file, return 0 on eof
200 int (*fill_buffer
)(struct demuxer
*demuxer
, demux_stream_t
*ds
); ///< Mandatory
201 /// Open the demuxer, return demuxer on success, NULL on failure
202 struct demuxer
* (*open
)(struct demuxer
*demuxer
); ///< Optional
203 /// Close the demuxer
204 void (*close
)(struct demuxer
*demuxer
); ///< Optional
206 void (*seek
)(struct demuxer
*demuxer
, float rel_seek_secs
, float audio_delay
, int flags
); ///< Optional
208 int (*control
)(struct demuxer
*demuxer
, int cmd
, void *arg
); ///< Optional
211 typedef struct demux_chapter
217 struct matroska_data
{
218 unsigned char segment_uid
[16];
219 // Ordered chapter information if any
220 struct matroska_chapter
{
223 bool has_segment_uid
;
224 unsigned char segment_uid
[16];
227 int num_ordered_chapters
;
230 typedef struct demux_attachment
235 unsigned int data_size
;
236 } demux_attachment_t
;
238 typedef struct demuxer
{
239 const demuxer_desc_t
*desc
; ///< Demuxer description structure
240 char *filetype
; // format name when not identified by demuxer (libavformat)
241 off_t filepos
; // input stream current pos.
245 double stream_pts
; // current stream pts, if applicable (e.g. dvd)
246 double reference_clock
;
247 char *filename
; ///< Needed by avs_check_file
248 int synced
; // stream synced (used by mpeg)
249 int type
; // demuxer type: mpeg PS, mpeg ES, avi, avi-ni, avi-nini, asf
250 int file_format
; // file format: mpeg/avi/asf
251 int seekable
; // flag
252 /* Set if using absolute seeks for small movements is OK (no pts resets
253 * that would make pts ambigious, preferably supports back/forward flags */
255 enum timestamp_type timestamp_type
;
257 demux_stream_t
*audio
; // audio buffer/demuxer
258 demux_stream_t
*video
; // video buffer/demuxer
259 demux_stream_t
*sub
; // dvd subtitle buffer/demuxer
262 struct sh_audio
*a_streams
[MAX_A_STREAMS
];
263 struct sh_video
*v_streams
[MAX_V_STREAMS
];
264 struct sh_sub
*s_streams
[MAX_S_STREAMS
];
266 // pointer to teletext decoder private data, if demuxer stream contains teletext
269 demux_chapter_t
* chapters
;
272 demux_attachment_t
* attachments
;
275 struct matroska_data matroska_data
;
277 void* priv
; // fileformat-dependent data
283 int progid
; //program id
284 int aid
, vid
, sid
; //audio, video and subtitle id
287 struct demux_packet
*new_demux_packet(size_t len
);
288 void resize_demux_packet(struct demux_packet
*dp
, size_t len
);
289 struct demux_packet
*clone_demux_packet(struct demux_packet
*pack
);
290 void free_demux_packet(struct demux_packet
*dp
);
293 #define SIZE_MAX ((size_t)-1)
296 static inline void *realloc_struct(void *ptr
, size_t nmemb
, size_t size
) {
297 if (nmemb
> SIZE_MAX
/ size
) {
301 return realloc(ptr
, nmemb
* size
);
304 demux_stream_t
* new_demuxer_stream(struct demuxer
*demuxer
,int id
);
305 demuxer_t
* new_demuxer(struct MPOpts
*opts
, stream_t
*stream
,int type
,int a_id
,int v_id
,int s_id
,char *filename
);
306 void free_demuxer_stream(demux_stream_t
*ds
);
307 void free_demuxer(demuxer_t
*demuxer
);
309 void ds_add_packet(demux_stream_t
*ds
,demux_packet_t
* dp
);
310 void ds_read_packet(demux_stream_t
*ds
, stream_t
*stream
, int len
, double pts
, off_t pos
, int flags
);
312 int demux_fill_buffer(demuxer_t
*demux
,demux_stream_t
*ds
);
313 int ds_fill_buffer(demux_stream_t
*ds
);
315 static inline off_t
ds_tell(demux_stream_t
*ds
){
316 return (ds
->dpos
-ds
->buffer_size
)+ds
->buffer_pos
;
319 static inline int ds_tell_pts(demux_stream_t
*ds
){
320 return (ds
->pts_bytes
-ds
->buffer_size
)+ds
->buffer_pos
;
323 int demux_read_data(demux_stream_t
*ds
,unsigned char* mem
,int len
);
324 int demux_pattern_3(demux_stream_t
*ds
, unsigned char *mem
, int maxlen
,
325 int *read
, uint32_t pattern
);
327 #define demux_peekc(ds) (\
328 (likely(ds->buffer_pos<ds->buffer_size)) ? ds->buffer[ds->buffer_pos] \
329 :((unlikely(!ds_fill_buffer(ds)))? (-1) : ds->buffer[ds->buffer_pos] ) )
331 #define demux_getc(ds) (\
332 (likely(ds->buffer_pos<ds->buffer_size)) ? ds->buffer[ds->buffer_pos++] \
333 :((unlikely(!ds_fill_buffer(ds)))? (-1) : ds->buffer[ds->buffer_pos++] ) )
335 static inline int demux_getc(demux_stream_t
*ds
){
336 if(ds
->buffer_pos
>=ds
->buffer_size
){
337 if(!ds_fill_buffer(ds
)){
338 // printf("DEMUX_GETC: EOF reached!\n");
342 // printf("[%02X]",ds->buffer[ds->buffer_pos]);
343 return ds
->buffer
[ds
->buffer_pos
++];
347 void ds_free_packs(demux_stream_t
*ds
);
348 int ds_get_packet(demux_stream_t
*ds
,unsigned char **start
);
349 int ds_get_packet_pts(demux_stream_t
*ds
, unsigned char **start
, double *pts
);
350 int ds_get_packet_sub(demux_stream_t
*ds
,unsigned char **start
);
351 double ds_get_next_pts(demux_stream_t
*ds
);
352 int ds_parse(demux_stream_t
*sh
, uint8_t **buffer
, int *len
, double pts
, off_t pos
);
353 void ds_clear_parser(demux_stream_t
*sh
);
355 // This is defined here because demux_stream_t ins't defined in stream.h
356 stream_t
* new_ds_stream(demux_stream_t
*ds
);
358 static inline int avi_stream_id(unsigned int id
){
362 if(a
>9 || b
>9) return 100; // invalid ID
366 demuxer_t
* demux_open(struct MPOpts
*opts
, stream_t
*stream
,int file_format
,int aid
,int vid
,int sid
,char* filename
);
367 void demux_flush(demuxer_t
*demuxer
);
368 int demux_seek(demuxer_t
*demuxer
,float rel_seek_secs
,float audio_delay
,int flags
);
369 demuxer_t
* new_demuxers_demuxer(demuxer_t
* vd
, demuxer_t
* ad
, demuxer_t
* sd
);
371 // AVI demuxer params:
372 extern int index_mode
; // -1=untouched 0=don't use index 1=use (geneate) index
373 extern char *index_file_save
, *index_file_load
;
375 extern int pts_from_bps
;
377 extern int extension_parsing
;
379 int demux_info_add(demuxer_t
*demuxer
, const char *opt
, const char *param
);
380 int demux_info_add_bstr(demuxer_t
*demuxer
, struct bstr opt
, struct bstr param
);
381 char* demux_info_get(demuxer_t
*demuxer
, const char *opt
);
382 int demux_info_print(demuxer_t
*demuxer
);
383 int demux_control(demuxer_t
*demuxer
, int cmd
, void *arg
);
385 int demuxer_switch_audio(demuxer_t
*demuxer
, int index
);
386 int demuxer_switch_video(demuxer_t
*demuxer
, int index
);
388 int demuxer_type_by_filename(char* filename
);
390 void demuxer_help(void);
391 int get_demuxer_type_from_name(char *demuxer_name
, int *force
);
393 int demuxer_add_attachment(demuxer_t
*demuxer
, struct bstr name
,
394 struct bstr type
, struct bstr data
);
395 int demuxer_add_chapter(demuxer_t
*demuxer
, struct bstr name
,
396 uint64_t start
, uint64_t end
);
397 int demuxer_seek_chapter(demuxer_t
*demuxer
, int chapter
, double *seek_pts
,
398 char **chapter_name
);
400 /// Get current chapter index if available.
401 int demuxer_get_current_chapter(demuxer_t
*demuxer
, double time_now
);
402 /// Get chapter name by index if available.
403 char *demuxer_chapter_name(demuxer_t
*demuxer
, int chapter
);
404 /// Get chapter display name by index.
405 char *demuxer_chapter_display_name(demuxer_t
*demuxer
, int chapter
);
406 /// Get chapter start time and end time by index if available.
407 float demuxer_chapter_time(demuxer_t
*demuxer
, int chapter
, float *end
);
408 /// Get total chapter number.
409 int demuxer_chapter_count(demuxer_t
*demuxer
);
410 /// Get current angle index.
411 int demuxer_get_current_angle(demuxer_t
*demuxer
);
413 int demuxer_set_angle(demuxer_t
*demuxer
, int angle
);
414 /// Get number of angles.
415 int demuxer_angles_count(demuxer_t
*demuxer
);
417 /* Get the index of a track.
418 * lang is a comma-separated list, NULL is same as empty list
419 * Sort tracks based on the following criteria:
420 * 1) earlier match in lang list, or last no match
421 * 2) track is marked default (default wins)
422 * 3) track number (lower wins)
423 * For audio, select best track according to these criteria; only return -1
424 * if there are no tracks at all.
425 * For subs, select best track according to the same criteria, but return -1
426 * if all tracks are no-lang-match, not-default.
428 int demuxer_audio_track_by_lang_and_default(struct demuxer
*d
, char *lang
);
429 int demuxer_sub_track_by_lang_and_default(struct demuxer
*d
, char *lang
);
431 #endif /* MPLAYER_DEMUXER_H */