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1 /* 1
2 * next generation[tm] xawtv capture interface
3 *
4 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org>
5 *
6 */
7
8 #include <pthread.h>
9 #include <sys/types.h>
10
11 #include "devices.h"
12 #include "list.h"
13
14 extern int ng_debug;
15 extern int ng_chromakey;
16 extern int ng_jpeg_quality;
17 extern int ng_ratio_x;
18 extern int ng_ratio_y;
19 extern char ng_v4l_conf[256];
20
21 #define BUG_ON(condition,message) if (co
22 fprintf(stderr,"BUG: %s [%s:%d]\n",\
23 message,__FILE__,__LINE__);\
24 exit(1);}
25
26 #if __STDC_VERSION__ < 199901
27 # define restrict
28 # define bool int
29 #endif
30
31 #define UNSET (-1U)
32 #define DIMOF(array) (sizeof(array)/sizeof(a
33 #define SDIMOF(array) ((signed int)(sizeof(ar
34 #define GETELEM(array,index,default) \
35 (index < sizeof(array)/sizeof(array[0]
36
37
38 /* -------------------------------------------
39 /* defines
40
41 #define VIDEO_NONE 0
42 #define VIDEO_RGB08 1 /* bt848 dithe
43 #define VIDEO_GRAY 2
44 #define VIDEO_RGB15_LE 3 /* 15 bpp litt
45 #define VIDEO_RGB16_LE 4 /* 16 bpp litt
46 #define VIDEO_RGB15_BE 5 /* 15 bpp big
47 #define VIDEO_RGB16_BE 6 /* 16 bpp big
48 #define VIDEO_BGR24 7 /* bgrbgrbgrbg
49 #define VIDEO_BGR32 8 /* bgr-bgr-bgr
50 #define VIDEO_RGB24 9 /* rgbrgbrgbrg
51 #define VIDEO_RGB32 10 /* -rgb-rgb-rg
52 #define VIDEO_LUT2 11 /* lookup-tabl
53 #define VIDEO_LUT4 12 /* lookup-tabl
54 #define VIDEO_YUYV 13 /* 4:2:2 */
55 #define VIDEO_YUV422P 14 /* YUV 4:2:2 (
56 #define VIDEO_YUV420P 15 /* YUV 4:2:0 (
57 #define VIDEO_MJPEG 16 /* MJPEG (AVI)
58 #define VIDEO_JPEG 17 /* JPEG (JFIF)
59 #define VIDEO_UYVY 18 /* 4:2:2 */
60 #define VIDEO_FMT_COUNT 19
61
62 #define AUDIO_NONE 0
63 #define AUDIO_U8_MONO 1
64 #define AUDIO_U8_STEREO 2
65 #define AUDIO_S16_LE_MONO 3
66 #define AUDIO_S16_LE_STEREO 4
67 #define AUDIO_S16_BE_MONO 5
68 #define AUDIO_S16_BE_STEREO 6
69 #define AUDIO_MP3 7
70 #define AUDIO_FMT_COUNT 8
71
72 #if BYTE_ORDER == BIG_ENDIAN
73 # define AUDIO_S16_NATIVE_MONO AUDIO_S16_BE_
74 # define AUDIO_S16_NATIVE_STEREO AUDIO_S16_BE_
75 # define VIDEO_RGB15_NATIVE VIDEO_RGB15_B
76 # define VIDEO_RGB16_NATIVE VIDEO_RGB16_B
77 #endif
78 #if BYTE_ORDER == LITTLE_ENDIAN
79 # define AUDIO_S16_NATIVE_MONO AUDIO_S16_LE_
80 # define AUDIO_S16_NATIVE_STEREO AUDIO_S16_LE_
81 # define VIDEO_RGB15_NATIVE VIDEO_RGB15_L
82 # define VIDEO_RGB16_NATIVE VIDEO_RGB16_L
83 #endif
84
85 #define ATTR_TYPE_INTEGER 1 /* range 0 -
86 #define ATTR_TYPE_CHOICE 2 /* multiple
87 #define ATTR_TYPE_BOOL 3 /* yes/no
88
89 #define ATTR_ID_NORM 1
90 #define ATTR_ID_INPUT 2
91 #define ATTR_ID_VOLUME 3
92 #define ATTR_ID_MUTE 4
93 #define ATTR_ID_AUDIO_MODE 5
94 #define ATTR_ID_COLOR 6
95 #define ATTR_ID_BRIGHT 7
96 #define ATTR_ID_HUE 8
97 #define ATTR_ID_CONTRAST 9
98 #define ATTR_ID_COUNT 10
99
100 #define CAN_OVERLAY 1
101 #define CAN_CAPTURE 2
102 #define CAN_TUNE 4
103 #define NEEDS_CHROMAKEY 8
104
105 /* -------------------------------------------
106
107 extern const unsigned int ng_vfmt_to_depth[V
108 extern const char* ng_vfmt_to_desc[VI
109
110 extern const unsigned int ng_afmt_to_channel
111 extern const unsigned int ng_afmt_to_bits[AU
112 extern const char* ng_afmt_to_desc[AU
113
114 extern const char* ng_attr_to_desc[AT
115
116 /* -------------------------------------------
117
118 struct STRTAB {
119 long nr;
120 const char *str;
121 };
122
123 struct OVERLAY_CLIP {
124 int x1,x2,y1,y2;
125 };
126
127 /* -------------------------------------------
128 /* video data structures
129
130 struct ng_video_fmt {
131 unsigned int fmtid; /* VIDEO_* *
132 unsigned int width;
133 unsigned int height;
134 unsigned int bytesperline; /* zero for
135 };
136
137 struct ng_video_buf {
138 struct ng_video_fmt fmt;
139 size_t size;
140 unsigned char *data;
141
142 /* meta info for frame */
143 struct {
144 int64_t ts; /* time stam
145 int seq;
146 int twice;
147 } info;
148
149 /*
150 * the lock is for the reference counter.
151 * if the reference counter goes down to z
152 * should be called. priv is for the owne
153 * buffer (can be used by the release call
154 */
155 pthread_mutex_t lock;
156 pthread_cond_t cond;
157 int refcount;
158 void (*release)(struct ng_
159 void *priv;
160 };
161
162 void ng_init_video_buf(struct ng_video_buf *bu
163 void ng_release_video_buf(struct ng_video_buf
164 struct ng_video_buf* ng_malloc_video_buf(struc
165 int s
166 void ng_wakeup_video_buf(struct ng_video_buf *
167 void ng_waiton_video_buf(struct ng_video_buf *
168
169
170 /* -------------------------------------------
171 /* audio data structures
172
173 struct ng_audio_fmt {
174 unsigned int fmtid; /* AUDIO_* *
175 unsigned int rate;
176 };
177
178 struct ng_audio_buf {
179 struct ng_audio_fmt fmt;
180 int size;
181 int written; /* for parti
182 char *data;
183
184 struct {
185 int64_t ts;
186 } info;
187 };
188
189 struct ng_audio_buf* ng_malloc_audio_buf(struc
190 int s
191
192 /* -------------------------------------------
193 /* someone who receives video and/or audio dat
194
195 struct ng_format_list {
196 char *name;
197 char *desc; /* if standard fmti
198 because it's con
199 char *ext;
200 unsigned int fmtid;
201 void *priv;
202 };
203
204 struct ng_writer {
205 const char *name;
206 const char *desc;
207 const struct ng_format_list *video;
208 const struct ng_format_list *audio;
209 const int combined; /* both audio + video
210
211 void* (*wr_open)(char *moviename, char *au
212 struct ng_video_fmt *vide
213 struct ng_audio_fmt *audi
214 int (*wr_video)(void *handle, struct ng_vi
215 int (*wr_audio)(void *handle, struct ng_au
216 int (*wr_close)(void *handle);
217
218 struct list_head list;
219 };
220
221 struct ng_reader {
222 const char *name;
223 const char *desc;
224
225 char *magic[4];
226 int moff[4];
227 int mlen[4];
228
229 void* (*rd_open)(char *moviename);
230 struct ng_video_fmt* (*rd_vfmt)(void *hand
231 struct ng_audio_fmt* (*rd_afmt)(void *hand
232 struct ng_video_buf* (*rd_vdata)(void *han
233 struct ng_audio_buf* (*rd_adata)(void *han
234 int64_t (*frame_time)(void *handle);
235 int (*rd_close)(void *handle);
236
237 struct list_head list;
238 };
239
240
241 /* -------------------------------------------
242 /* attributes
243
244 struct ng_attribute {
245 int id;
246 const char *name;
247 int type;
248 int defval;
249 struct STRTAB *choices; /* ATTR_
250 int min,max; /* ATTR_
251 int points; /* ATTR_
252 const void *priv;
253 void *handle;
254 int (*read)(struct ng_attribute*);
255 void (*write)(struct ng_attribute*,
256 };
257
258 struct ng_attribute* ng_attr_byid(struct ng_at
259 struct ng_attribute* ng_attr_byname(struct ng_
260 const char* ng_attr_getstr(struct ng_attribute
261 int ng_attr_getint(struct ng_attribute *attr,
262 void ng_attr_listchoices(struct ng_attribute *
263 int ng_attr_int2percent(struct ng_attribute *a
264 int ng_attr_percent2int(struct ng_attribute *a
265 int ng_attr_parse_int(struct ng_attribute *att
266
267 /* -------------------------------------------
268
269 void ng_ratio_fixup(int *width, int *height, i
270 void ng_ratio_fixup2(int *width, int *height,
271 int ratio_x, int ratio_y,
272
273 /* -------------------------------------------
274 /* device informations
275
276 struct ng_devinfo {
277 char device[32];
278 char name[64];
279 int flags;
280 };
281
282 /* -------------------------------------------
283 /* capture/overlay interface driver
284
285 struct ng_vid_driver {
286 const char *name;
287
288 /* open/close */
289 void* (*open)(char *device);
290 int (*close)(void *handle);
291
292 /* attributes */
293 char* (*get_devname)(void *handle);
294 int (*capabilities)(void *handle);
295 struct ng_attribute* (*list_attrs)(void *h
296
297 /* overlay */
298 int (*setupfb)(void *handle, struct ng_v
299 int (*overlay)(void *handle, struct ng_v
300 struct OVERLAY_CLIP *oc,
301
302 /* capture */
303 int (*setformat)(void *handle, struct ng
304 int (*startvideo)(void *handle, int fps,
305 void (*stopvideo)(void *handle);
306 struct ng_video_buf* (*nextframe)(void *ha
307 struct ng_video_buf* (*getimage)(void *han
308
309 /* tuner */
310 unsigned long (*getfreq)(void *handle);
311 void (*setfreq)(void *handle, unsigned lo
312 int (*is_tuned)(void *handle);
313
314 struct list_head list;
315 };
316
317
318 /* -------------------------------------------
319 /* sound driver
320
321 struct ng_dsp_driver {
322 const char *name;
323 void* (*open)(char *device
324 int record);
325 void (*close)(void *handl
326 int (*fd)(void *handle);
327 int (*startrec)(void *ha
328 struct ng_audio_buf* (*read)(void *handle
329 struct ng_audio_buf* (*write)(void *handl
330 int64_t (*latency)(void *han
331
332 struct list_head list;
333 };
334
335 struct ng_mix_driver {
336 const char *name;
337 struct ng_devinfo* (*probe)(void);
338 struct ng_devinfo* (*channels)(char *de
339 void* (*open)(char *device
340 struct ng_attribute* (*volctl)(void *hand
341 void (*close)(void *handl
342
343 struct list_head list;
344 };
345
346
347 /* -------------------------------------------
348 /* color space converters
349
350 struct ng_video_conv {
351 unsigned int fmtid_in;
352 unsigned int fmtid_out;
353 void* (*init)(struct ng_vi
354 void *priv);
355 void (*frame)(void *handl
356 struct ng_v
357 struct ng_v
358 void (*fini)(void *handle
359 void *priv;
360
361 struct list_head list;
362 };
363
364 struct ng_convert_handle {
365 struct ng_video_fmt ifmt;
366 struct ng_video_fmt ofmt;
367 int isize;
368 int osize;
369 struct ng_video_conv *conv;
370 void *chandle;
371 };
372
373 struct ng_convert_handle* ng_convert_alloc(str
374 str
375 str
376 void ng_convert_init(struct ng_convert_handle
377 struct ng_video_buf* ng_convert_frame(struct n
378 struct n
379 struct n
380 void ng_convert_fini(struct ng_convert_handle
381 struct ng_video_buf* ng_convert_single(struct
382 struct
383
384 /* -------------------------------------------
385 /* audio converters
386
387 struct ng_audio_conv {
388 unsigned int fmtid_in;
389 unsigned int fmtid_out;
390 void* (*init)(void *priv);
391 struct ng_audio_buf* (*frame)(void *handl
392 struct ng_a
393 void (*fini)(void *handle
394 void *priv;
395
396 struct list_head list;
397 };
398
399 /* -------------------------------------------
400 /* filters
401
402 struct ng_filter {
403 char *name;
404 int fmts;
405 struct ng_attribute* attrs;
406 void* (*init)(struct ng_vi
407 struct ng_video_buf* (*frame)(void *handl
408 struct ng_v
409 void (*fini)(void *handle
410
411 struct list_head list;
412 };
413
414 /* -------------------------------------------
415
416 /* must be changed if we break compatibility *
417 #define NG_PLUGIN_MAGIC 0x20030129
418
419 extern struct list_head ng_conv;
420 extern struct list_head ng_aconv;
421 extern struct list_head ng_filters;
422 extern struct list_head ng_writers;
423 extern struct list_head ng_readers;
424 extern struct list_head ng_vid_drivers;
425 extern struct list_head ng_dsp_drivers;
426 extern struct list_head ng_mix_drivers;
427
428 int ng_conv_register(int magic, char *plugname
429 struct ng_video_conv *lis
430 int ng_aconv_register(int magic, char *plugnam
431 struct ng_audio_conv *li
432 int ng_filter_register(int magic, char *plugna
433 struct ng_filter *filte
434 int ng_writer_register(int magic, char *plugna
435 struct ng_writer *write
436 int ng_reader_register(int magic, char *plugna
437 struct ng_reader *reade
438 int ng_vid_driver_register(int magic, char *pl
439 struct ng_vid_drive
440 int ng_dsp_driver_register(int magic, char *pl
441 struct ng_dsp_drive
442 int ng_mix_driver_register(int magic, char *pl
443 struct ng_mix_drive
444
445 struct ng_video_conv* ng_conv_find_to(unsigned
446 struct ng_video_conv* ng_conv_find_from(unsign
447 struct ng_video_conv* ng_conv_find_match(unsig
448
449 const struct ng_vid_driver* ng_vid_open(char *
450 struct
451 void *
452 const struct ng_dsp_driver* ng_dsp_open(char *
453 int re
454 struct ng_attribute* ng_mix_init(char *device,
455 struct ng_reader* ng_find_reader(char *filenam
456
457 int64_t ng_tofday_to_timestamp(struct timeval
458 int64_t ng_get_timestamp(void);
459 void ng_check_clipping(int width, int height,
460 struct OVERLAY_CLIP *oc
461 struct ng_video_buf* ng_filter_single(struct n
462 struct n
463
464 /* -------------------------------------------
465
466 void ng_init(void);
467 void ng_lut_init(unsigned long red_mask, unsig
468 unsigned long blue_mask, unsi
469
470 void ng_rgb24_to_lut2(unsigned char *dest, uns
471 void ng_rgb24_to_lut4(unsigned char *dest, uns
472
473 /* -------------------------------------------
474 /* internal stuff starts here
475
476 #ifdef NG_PRIVATE
477
478 /* init functions */
479 void ng_color_packed_init(void);
480 void ng_color_yuv2rgb_init(void);
481 void ng_writefile_init(void);
482
483 /* for yuv2rgb using lookup tables (color_lut.
484 unsigned long ng_lut_red[256];
485 unsigned long ng_lut_green[256];
486 unsigned long ng_lut_blue[256];
487 void ng_yuv422_to_lut2(unsigned char *dest, un
488 void ng_yuv422_to_lut4(unsigned char *dest, un
489 void ng_yuv420p_to_lut2(void *h, struct ng_vid
490 struct ng_video_buf *i
491 void ng_yuv420p_to_lut4(void *h, struct ng_vid
492 struct ng_video_buf *i
493 void ng_yuv422p_to_lut2(void *h, struct ng_vid
494 struct ng_video_buf *i
495 void ng_yuv422p_to_lut4(void *h, struct ng_vid
496 struct ng_video_buf *i
497
498 /* color_common.c stuff */
499 void* ng_packed_init(struct ng_video_fmt *out,
500 void ng_packed_frame(void *handle, struct ng_
501 struct ng_video_buf *in)
502 void* ng_conv_nop_init(struct ng_video_fmt *ou
503 void ng_conv_nop_fini(void *handle);
504
505 #define NG_GENERIC_PACKED
506 init: ng_packed_init,
507 frame: ng_packed_frame,
508 fini: ng_conv_nop_fini
509
510 #endif /* NG_PRIVATE */
511
512 /* -------------------------------------------
513 /*
514 * Local variables:
515 * compile-command: "(cd ..; make)"
516 * End:
517 */
518
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