2 * This file is part of MPlayer.
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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.
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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"
32 #ifdef HAVE_BUILTIN_EXPECT
33 #define likely(x) __builtin_expect ((x) != 0, 1)
34 #define unlikely(x) __builtin_expect ((x) != 0, 0)
37 #define unlikely(x) (x)
40 #define MAX_PACKS 4096
41 #define MAX_PACK_BYTES 0x8000000 // 128 MiB
43 #define DEMUXER_TYPE_UNKNOWN 0
44 #define DEMUXER_TYPE_MPEG_ES 1
45 #define DEMUXER_TYPE_MPEG_PS 2
46 #define DEMUXER_TYPE_AVI 3
47 #define DEMUXER_TYPE_AVI_NI 4
48 #define DEMUXER_TYPE_AVI_NINI 5
49 #define DEMUXER_TYPE_ASF 6
50 #define DEMUXER_TYPE_MOV 7
51 #define DEMUXER_TYPE_VIVO 8
52 #define DEMUXER_TYPE_TV 9
53 #define DEMUXER_TYPE_FLI 10
54 #define DEMUXER_TYPE_REAL 11
55 #define DEMUXER_TYPE_Y4M 12
56 #define DEMUXER_TYPE_FILM 14
57 #define DEMUXER_TYPE_ROQ 15
58 #define DEMUXER_TYPE_MF 16
59 #define DEMUXER_TYPE_AUDIO 17
60 #define DEMUXER_TYPE_OGG 18
61 #define DEMUXER_TYPE_RAWAUDIO 20
62 #define DEMUXER_TYPE_RTP 21
63 #define DEMUXER_TYPE_RAWDV 22
64 #define DEMUXER_TYPE_PVA 23
65 #define DEMUXER_TYPE_SMJPEG 24
66 #define DEMUXER_TYPE_XMMS 25
67 #define DEMUXER_TYPE_RAWVIDEO 26
68 #define DEMUXER_TYPE_MPEG4_ES 27
69 #define DEMUXER_TYPE_GIF 28
70 #define DEMUXER_TYPE_MPEG_TS 29
71 #define DEMUXER_TYPE_H264_ES 30
72 #define DEMUXER_TYPE_MATROSKA 31
73 #define DEMUXER_TYPE_REALAUDIO 32
74 #define DEMUXER_TYPE_MPEG_TY 33
75 #define DEMUXER_TYPE_LMLM4 34
76 #define DEMUXER_TYPE_LAVF 35
77 #define DEMUXER_TYPE_NSV 36
78 #define DEMUXER_TYPE_VQF 37
79 #define DEMUXER_TYPE_AVS 38
80 #define DEMUXER_TYPE_AAC 39
81 #define DEMUXER_TYPE_MPC 40
82 #define DEMUXER_TYPE_MPEG_PES 41
83 #define DEMUXER_TYPE_MPEG_GXF 42
84 #define DEMUXER_TYPE_NUT 43
85 #define DEMUXER_TYPE_LAVF_PREFERRED 44
86 #define DEMUXER_TYPE_RTP_NEMESI 45
87 #define DEMUXER_TYPE_MNG 46
89 // This should always match the higest demuxer type number.
90 // Unless you want to disallow users to force the demuxer to some types
91 #define DEMUXER_TYPE_MIN 0
92 #define DEMUXER_TYPE_MAX 46
94 #define DEMUXER_TYPE_DEMUXERS (1<<16)
95 // A virtual demuxer type for the network code
96 #define DEMUXER_TYPE_PLAYLIST (2<<16)
99 #define MP_NOPTS_VALUE (-1LL<<63) //both int64_t and double should be able to represent this exactly
102 // DEMUXER control commands/answers
103 #define DEMUXER_CTRL_NOTIMPL -1
104 #define DEMUXER_CTRL_DONTKNOW 0
105 #define DEMUXER_CTRL_OK 1
106 #define DEMUXER_CTRL_GUESS 2
107 #define DEMUXER_CTRL_GET_TIME_LENGTH 10
108 #define DEMUXER_CTRL_GET_PERCENT_POS 11
109 #define DEMUXER_CTRL_SWITCH_AUDIO 12
110 #define DEMUXER_CTRL_RESYNC 13
111 #define DEMUXER_CTRL_SWITCH_VIDEO 14
112 #define DEMUXER_CTRL_IDENTIFY_PROGRAM 15
113 #define DEMUXER_CTRL_CORRECT_PTS 16
115 #define SEEK_ABSOLUTE (1 << 0)
116 #define SEEK_FACTOR (1 << 1)
117 #define SEEK_FORWARD (1 << 2)
118 #define SEEK_BACKWARD (1 << 3)
120 #define MP_INPUT_BUFFER_PADDING_SIZE 8
122 // Holds one packet/frame/whatever
123 typedef struct demux_packet
{
128 off_t pos
; // position in index (AVI) or file (MPG)
129 unsigned char* buffer
;
130 int flags
; // keyframe, etc
131 int refcount
; //refcounter for the master packet, if 0, buffer can be free()d
132 struct demux_packet
*master
; //pointer to the master packet if this one is a cloned one
133 struct demux_packet
*next
;
136 typedef struct demux_stream
{
137 int buffer_pos
; // current buffer position
138 int buffer_size
; // current buffer size
139 unsigned char* buffer
; // current buffer, never free() it, always use free_demux_packet(buffer_ref);
140 double pts
; // current buffer's pts
141 int pts_bytes
; // number of bytes read after last pts stamp
142 int eof
; // end of demuxed stream? (true if all buffer empty)
143 off_t pos
; // position in the input stream (file)
144 off_t dpos
; // position in the demuxed stream
145 int pack_no
; // serial number of packet
146 int flags
; // flags of current packet (keyframe etc)
147 int non_interleaved
; // 1 if this stream is not properly interleaved,
148 // so e.g. subtitle handling must do explicit reads.
150 int packs
; // number of packets in buffer
151 int bytes
; // total bytes of packets in buffer
152 demux_packet_t
*first
; // read to current buffer from here
153 demux_packet_t
*last
; // append new packets from input stream to here
154 demux_packet_t
*current
;// needed for refcounting of the buffer
155 int id
; // stream ID (for multiple audio/video streams)
156 struct demuxer
*demuxer
; // parent demuxer structure (stream handler)
158 demux_packet_t
*asf_packet
; // read asf fragments here
161 unsigned int ss_mul
,ss_div
;
162 // ---- stream header ----
166 typedef struct demuxer_info
{
174 #define MAX_A_STREAMS 256
175 #define MAX_V_STREAMS 256
176 #define MAX_S_STREAMS 256
181 * Demuxer description structure
183 typedef struct demuxer_desc
{
184 const char *info
; ///< What is it (long name and/or description)
185 const char *name
; ///< Demuxer name, used with -demuxer switch
186 const char *shortdesc
; ///< Description printed at demuxer detection
187 const char *author
; ///< Demuxer author(s)
188 const char *comment
; ///< Comment, printed with -demuxer help
190 int type
; ///< DEMUXER_TYPE_xxx
191 int safe_check
; ///< If 1 detection is safe and fast, do it before file extension check
193 /// Check if can demux the file, return DEMUXER_TYPE_xxx on success
194 int (*check_file
)(struct demuxer
*demuxer
); ///< Mandatory if safe_check == 1, else optional
195 /// Get packets from file, return 0 on eof
196 int (*fill_buffer
)(struct demuxer
*demuxer
, demux_stream_t
*ds
); ///< Mandatory
197 /// Open the demuxer, return demuxer on success, NULL on failure
198 struct demuxer
* (*open
)(struct demuxer
*demuxer
); ///< Optional
199 /// Close the demuxer
200 void (*close
)(struct demuxer
*demuxer
); ///< Optional
202 void (*seek
)(struct demuxer
*demuxer
, float rel_seek_secs
, float audio_delay
, int flags
); ///< Optional
204 int (*control
)(struct demuxer
*demuxer
, int cmd
, void *arg
); ///< Optional
207 typedef struct demux_chapter
213 struct matroska_data
{
214 unsigned char segment_uid
[16];
215 // Ordered chapter information if any
216 struct matroska_chapter
{
219 bool has_segment_uid
;
220 unsigned char segment_uid
[16];
223 int num_ordered_chapters
;
226 typedef struct demux_attachment
231 unsigned int data_size
;
232 } demux_attachment_t
;
234 typedef struct demuxer
{
235 const demuxer_desc_t
*desc
; ///< Demuxer description structure
236 off_t filepos
; // input stream current pos.
240 double stream_pts
; // current stream pts, if applicable (e.g. dvd)
241 double reference_clock
;
242 char *filename
; ///< Needed by avs_check_file
243 int synced
; // stream synced (used by mpeg)
244 int type
; // demuxer type: mpeg PS, mpeg ES, avi, avi-ni, avi-nini, asf
245 int file_format
; // file format: mpeg/avi/asf
246 int seekable
; // flag
247 /* Set if using absolute seeks for small movements is OK (no pts resets
248 * that would make pts ambigious, preferably supports back/forward flags */
251 demux_stream_t
*audio
; // audio buffer/demuxer
252 demux_stream_t
*video
; // video buffer/demuxer
253 demux_stream_t
*sub
; // dvd subtitle buffer/demuxer
256 struct sh_audio
*a_streams
[MAX_A_STREAMS
];
257 struct sh_video
*v_streams
[MAX_V_STREAMS
];
258 struct sh_sub
*s_streams
[MAX_S_STREAMS
];
260 // pointer to teletext decoder private data, if demuxer stream contains teletext
263 demux_chapter_t
* chapters
;
266 demux_attachment_t
* attachments
;
269 struct matroska_data matroska_data
;
271 void* priv
; // fileformat-dependent data
277 int progid
; //program id
278 int aid
, vid
, sid
; //audio, video and subtitle id
281 static inline demux_packet_t
* new_demux_packet(int len
){
282 demux_packet_t
* dp
=(demux_packet_t
*)malloc(sizeof(demux_packet_t
));
285 dp
->pts
=MP_NOPTS_VALUE
;
286 dp
->endpts
=MP_NOPTS_VALUE
;
287 dp
->stream_pts
= MP_NOPTS_VALUE
;
293 if (len
> 0 && (dp
->buffer
= (unsigned char *)malloc(len
+ MP_INPUT_BUFFER_PADDING_SIZE
)))
294 memset(dp
->buffer
+ len
, 0, 8);
300 static inline void resize_demux_packet(demux_packet_t
* dp
, int len
)
304 dp
->buffer
=(unsigned char *)realloc(dp
->buffer
,len
+8);
308 if(dp
->buffer
) free(dp
->buffer
);
313 memset(dp
->buffer
+ len
, 0, 8);
318 static inline demux_packet_t
* clone_demux_packet(demux_packet_t
* pack
){
319 demux_packet_t
* dp
=(demux_packet_t
*)malloc(sizeof(demux_packet_t
));
320 while(pack
->master
) pack
=pack
->master
; // find the master
321 memcpy(dp
,pack
,sizeof(demux_packet_t
));
329 static inline void free_demux_packet(demux_packet_t
* dp
){
330 if (dp
->master
==NULL
){ //dp is a master packet
332 if (dp
->refcount
==0){
333 if (dp
->buffer
) free(dp
->buffer
);
339 free_demux_packet(dp
->master
);
344 #define SIZE_MAX ((size_t)-1)
347 static inline void *realloc_struct(void *ptr
, size_t nmemb
, size_t size
) {
348 if (nmemb
> SIZE_MAX
/ size
) {
352 return realloc(ptr
, nmemb
* size
);
355 demux_stream_t
* new_demuxer_stream(struct demuxer
*demuxer
,int id
);
356 demuxer_t
* new_demuxer(struct MPOpts
*opts
, stream_t
*stream
,int type
,int a_id
,int v_id
,int s_id
,char *filename
);
357 void free_demuxer_stream(demux_stream_t
*ds
);
358 void free_demuxer(demuxer_t
*demuxer
);
360 void ds_add_packet(demux_stream_t
*ds
,demux_packet_t
* dp
);
361 void ds_read_packet(demux_stream_t
*ds
, stream_t
*stream
, int len
, double pts
, off_t pos
, int flags
);
363 int demux_fill_buffer(demuxer_t
*demux
,demux_stream_t
*ds
);
364 int ds_fill_buffer(demux_stream_t
*ds
);
366 static inline off_t
ds_tell(demux_stream_t
*ds
){
367 return (ds
->dpos
-ds
->buffer_size
)+ds
->buffer_pos
;
370 static inline int ds_tell_pts(demux_stream_t
*ds
){
371 return (ds
->pts_bytes
-ds
->buffer_size
)+ds
->buffer_pos
;
374 int demux_read_data(demux_stream_t
*ds
,unsigned char* mem
,int len
);
375 int demux_pattern_3(demux_stream_t
*ds
, unsigned char *mem
, int maxlen
,
376 int *read
, uint32_t pattern
);
378 #define demux_peekc(ds) (\
379 (likely(ds->buffer_pos<ds->buffer_size)) ? ds->buffer[ds->buffer_pos] \
380 :((unlikely(!ds_fill_buffer(ds)))? (-1) : ds->buffer[ds->buffer_pos] ) )
382 #define demux_getc(ds) (\
383 (likely(ds->buffer_pos<ds->buffer_size)) ? ds->buffer[ds->buffer_pos++] \
384 :((unlikely(!ds_fill_buffer(ds)))? (-1) : ds->buffer[ds->buffer_pos++] ) )
386 static inline int demux_getc(demux_stream_t
*ds
){
387 if(ds
->buffer_pos
>=ds
->buffer_size
){
388 if(!ds_fill_buffer(ds
)){
389 // printf("DEMUX_GETC: EOF reached!\n");
393 // printf("[%02X]",ds->buffer[ds->buffer_pos]);
394 return ds
->buffer
[ds
->buffer_pos
++];
398 void ds_free_packs(demux_stream_t
*ds
);
399 int ds_get_packet(demux_stream_t
*ds
,unsigned char **start
);
400 int ds_get_packet_pts(demux_stream_t
*ds
, unsigned char **start
, double *pts
);
401 int ds_get_packet_sub(demux_stream_t
*ds
,unsigned char **start
);
402 double ds_get_next_pts(demux_stream_t
*ds
);
403 int ds_parse(demux_stream_t
*sh
, uint8_t **buffer
, int *len
, double pts
, off_t pos
);
405 // This is defined here because demux_stream_t ins't defined in stream.h
406 stream_t
* new_ds_stream(demux_stream_t
*ds
);
408 static inline int avi_stream_id(unsigned int id
){
409 unsigned char *p
=(unsigned char *)&id
;
412 a
=p
[3]-'0'; b
=p
[2]-'0';
414 a
=p
[0]-'0'; b
=p
[1]-'0';
416 if(a
>9 || b
>9) return 100; // invalid ID
420 demuxer_t
* demux_open(struct MPOpts
*opts
, stream_t
*stream
,int file_format
,int aid
,int vid
,int sid
,char* filename
);
421 void demux_flush(demuxer_t
*demuxer
);
422 int demux_seek(demuxer_t
*demuxer
,float rel_seek_secs
,float audio_delay
,int flags
);
423 demuxer_t
* new_demuxers_demuxer(demuxer_t
* vd
, demuxer_t
* ad
, demuxer_t
* sd
);
425 // AVI demuxer params:
426 extern int index_mode
; // -1=untouched 0=don't use index 1=use (geneate) index
427 extern char *index_file_save
, *index_file_load
;
429 extern int pts_from_bps
;
431 extern int extension_parsing
;
433 int demux_info_add(demuxer_t
*demuxer
, const char *opt
, const char *param
);
434 char* demux_info_get(demuxer_t
*demuxer
, const char *opt
);
435 int demux_info_print(demuxer_t
*demuxer
);
436 int demux_control(demuxer_t
*demuxer
, int cmd
, void *arg
);
438 #ifdef CONFIG_OGGVORBIS
439 /* Found in demux_ogg.c */
440 int demux_ogg_num_subs(demuxer_t
*demuxer
);
441 int demux_ogg_sub_id(demuxer_t
*demuxer
, int index
);
444 int demuxer_get_current_time(demuxer_t
*demuxer
);
445 double demuxer_get_time_length(demuxer_t
*demuxer
);
446 int demuxer_get_percent_pos(demuxer_t
*demuxer
);
447 int demuxer_switch_audio(demuxer_t
*demuxer
, int index
);
448 int demuxer_switch_video(demuxer_t
*demuxer
, int index
);
450 int demuxer_type_by_filename(char* filename
);
452 void demuxer_help(void);
453 int get_demuxer_type_from_name(char *demuxer_name
, int *force
);
455 int demuxer_add_attachment(demuxer_t
*demuxer
, const char *name
,
456 int name_maxlen
, const char *type
, int type_maxlen
,
457 const void *data
, size_t size
);
458 int demuxer_add_chapter(demuxer_t
*demuxer
, const char *name
, int name_maxlen
,
459 uint64_t start
, uint64_t end
);
460 int demuxer_seek_chapter(demuxer_t
*demuxer
, int chapter
, double *seek_pts
,
461 char **chapter_name
);
463 /// Get current chapter index if available.
464 int demuxer_get_current_chapter(demuxer_t
*demuxer
);
465 /// Get chapter name by index if available.
466 char *demuxer_chapter_name(demuxer_t
*demuxer
, int chapter
);
467 /// Get chapter display name by index.
468 char *demuxer_chapter_display_name(demuxer_t
*demuxer
, int chapter
);
469 /// Get chapter start time and end time by index if available.
470 float demuxer_chapter_time(demuxer_t
*demuxer
, int chapter
, float *end
);
471 /// Get total chapter number.
472 int demuxer_chapter_count(demuxer_t
*demuxer
);
473 /// Get current angle index.
474 int demuxer_get_current_angle(demuxer_t
*demuxer
);
476 int demuxer_set_angle(demuxer_t
*demuxer
, int angle
);
477 /// Get number of angles.
478 int demuxer_angles_count(demuxer_t
*demuxer
);
480 // get the index of a track
481 // lang is a comma-separated list
482 int demuxer_audio_track_by_lang(demuxer_t
* demuxer
, char* lang
);
483 int demuxer_sub_track_by_lang(demuxer_t
* demuxer
, char* lang
);
485 // find the default track
486 // for subtitles, it is the first track with default attribute
487 // for audio, additionally, the first track is selected if no track has default attribute set
488 int demuxer_default_audio_track(demuxer_t
* d
);
489 int demuxer_default_sub_track(demuxer_t
* d
);
491 #endif /* MPLAYER_DEMUXER_H */