b2f6736b09f137250a0b0f7bd5b898d57a922d9f
[asterisk/asterisk.git] / frame.c
1 /*
2  * Asterisk -- A telephony toolkit for Linux.
3  *
4  * Frame manipulation routines
5  * 
6  * Copyright (C) 1999, Mark Spencer
7  *
8  * Mark Spencer <markster@linux-support.net>
9  *
10  * This program is free software, distributed under the terms of
11  * the GNU General Public License
12  */
13
14 #include <asterisk/lock.h>
15 #include <asterisk/frame.h>
16 #include <asterisk/logger.h>
17 #include <asterisk/options.h>
18 #include <asterisk/cli.h>
19 #include <asterisk/term.h>
20 #include <stdlib.h>
21 #include <unistd.h>
22 #include <string.h>
23 #include <errno.h>
24 #include <pthread.h>
25 #include <stdio.h>
26 #include "asterisk.h"
27
28 #ifdef TRACE_FRAMES
29 static int headers = 0;
30 static struct ast_frame *headerlist = NULL;
31 static ast_mutex_t framelock = AST_MUTEX_INITIALIZER;
32 #endif
33
34 #define SMOOTHER_SIZE 8000
35
36 struct ast_smoother {
37         int size;
38         int format;
39         int readdata;
40         int optimizablestream;
41         float samplesperbyte;
42         struct ast_frame f;
43         char data[SMOOTHER_SIZE];
44         char framedata[SMOOTHER_SIZE + AST_FRIENDLY_OFFSET];
45         struct ast_frame *opt;
46         int len;
47 };
48
49 void ast_smoother_reset(struct ast_smoother *s, int size)
50 {
51         memset(s, 0, sizeof(struct ast_smoother));
52         s->size = size;
53 }
54
55 struct ast_smoother *ast_smoother_new(int size)
56 {
57         struct ast_smoother *s;
58         if (size < 1)
59                 return NULL;
60         s = malloc(sizeof(struct ast_smoother));
61         if (s)
62                 ast_smoother_reset(s, size);
63         return s;
64 }
65
66 int ast_smoother_feed(struct ast_smoother *s, struct ast_frame *f)
67 {
68         if (f->frametype != AST_FRAME_VOICE) {
69                 ast_log(LOG_WARNING, "Huh?  Can't smooth a non-voice frame!\n");
70                 return -1;
71         }
72         if (!s->format) {
73                 s->format = f->subclass;
74                 s->samplesperbyte = (float)f->samples / (float)f->datalen;
75         } else if (s->format != f->subclass) {
76                 ast_log(LOG_WARNING, "Smoother was working on %d format frames, now trying to feed %d?\n", s->format, f->subclass);
77                 return -1;
78         }
79         if (s->len + f->datalen > SMOOTHER_SIZE) {
80                 ast_log(LOG_WARNING, "Out of smoother space\n");
81                 return -1;
82         }
83         if ((f->datalen == s->size) && !s->opt) {
84                 if (!s->len) {
85                         /* Optimize by sending the frame we just got
86                            on the next read, thus eliminating the douple
87                            copy */
88                         s->opt = f;
89                         return 0;
90                 } else {
91                         s->optimizablestream++;
92                         if (s->optimizablestream > 10) {
93                                 /* For the past 10 rounds, we have input and output
94                                    frames of the correct size for this smoother, yet
95                                    we were unable to optimize because there was still
96                                    some cruft left over.  Lets just drop the cruft so
97                                    we can move to a fully optimized path */
98                                 s->len = 0;
99                                 s->opt = f;
100                                 return 0;
101                         }
102                 }
103         } else 
104                 s->optimizablestream = 0;
105         memcpy(s->data + s->len, f->data, f->datalen);
106         s->len += f->datalen;
107         return 0;
108 }
109
110 struct ast_frame *ast_smoother_read(struct ast_smoother *s)
111 {
112         struct ast_frame *opt;
113
114         /* IF we have an optimization frame, send it */
115         if (s->opt) {
116                 opt = s->opt;
117                 s->opt = NULL;
118                 return opt;
119         }
120
121         /* Make sure we have enough data */
122         if (s->len < s->size) {
123                 return NULL;
124         }
125         /* Make frame */
126         s->f.frametype = AST_FRAME_VOICE;
127         s->f.subclass = s->format;
128         s->f.data = s->framedata + AST_FRIENDLY_OFFSET;
129         s->f.offset = AST_FRIENDLY_OFFSET;
130         s->f.datalen = s->size;
131         s->f.samples = s->size * s->samplesperbyte;
132         /* Fill Data */
133         memcpy(s->f.data, s->data, s->size);
134         s->len -= s->size;
135         /* Move remaining data to the front if applicable */
136         if (s->len) 
137                 memmove(s->data, s->data + s->size, s->len);
138         /* Return frame */
139         return &s->f;
140 }
141
142 void ast_smoother_free(struct ast_smoother *s)
143 {
144         free(s);
145 }
146
147 static struct ast_frame *ast_frame_header_new(void)
148 {
149         struct ast_frame *f;
150         f = malloc(sizeof(struct ast_frame));
151         if (f)
152                 memset(f, 0, sizeof(struct ast_frame));
153 #ifdef TRACE_FRAMES
154         if (f) {
155                 headers++;
156                 f->prev = NULL;
157                 ast_mutex_lock(&framelock);
158                 f->next = headerlist;
159                 if (headerlist)
160                         headerlist->prev = f;
161                 headerlist = f;
162                 ast_mutex_unlock(&framelock);
163         }
164 #endif  
165         return f;
166 }
167
168 /*
169  * Important: I should be made more efficient.  Frame headers should
170  * most definitely be cached
171  */
172
173 void ast_frfree(struct ast_frame *fr)
174 {
175         if (fr->mallocd & AST_MALLOCD_DATA) {
176                 if (fr->data) 
177                         free(fr->data - fr->offset);
178         }
179         if (fr->mallocd & AST_MALLOCD_SRC) {
180                 if (fr->src)
181                         free(fr->src);
182         }
183         if (fr->mallocd & AST_MALLOCD_HDR) {
184 #ifdef TRACE_FRAMES
185                 headers--;
186                 ast_mutex_lock(&framelock);
187                 if (fr->next)
188                         fr->next->prev = fr->prev;
189                 if (fr->prev)
190                         fr->prev->next = fr->next;
191                 else
192                         headerlist = fr->next;
193                 ast_mutex_unlock(&framelock);
194 #endif                  
195                 free(fr);
196         }
197 }
198
199 struct ast_frame *ast_frisolate(struct ast_frame *fr)
200 {
201         struct ast_frame *out;
202         if (!(fr->mallocd & AST_MALLOCD_HDR)) {
203                 /* Allocate a new header if needed */
204                 out = ast_frame_header_new();
205                 if (!out) {
206                         ast_log(LOG_WARNING, "Out of memory\n");
207                         return NULL;
208                 }
209                 out->frametype = fr->frametype;
210                 out->subclass = fr->subclass;
211                 out->datalen = 0;
212                 out->samples = fr->samples;
213                 out->offset = 0;
214                 out->src = NULL;
215                 out->data = NULL;
216         } else {
217                 out = fr;
218         }
219         if (!(fr->mallocd & AST_MALLOCD_SRC)) {
220                 if (fr->src)
221                         out->src = strdup(fr->src);
222         } else
223                 out->src = fr->src;
224         if (!(fr->mallocd & AST_MALLOCD_DATA))  {
225                 out->data = malloc(fr->datalen + AST_FRIENDLY_OFFSET);
226                 if (!out->data) {
227                         free(out);
228                         ast_log(LOG_WARNING, "Out of memory\n");
229                         return NULL;
230                 }
231                 out->data += AST_FRIENDLY_OFFSET;
232                 out->offset = AST_FRIENDLY_OFFSET;
233                 out->datalen = fr->datalen;
234                 memcpy(out->data, fr->data, fr->datalen);
235         }
236         out->mallocd = AST_MALLOCD_HDR | AST_MALLOCD_SRC | AST_MALLOCD_DATA;
237         return out;
238 }
239
240 struct ast_frame *ast_frdup(struct ast_frame *f)
241 {
242         struct ast_frame *out;
243         int len;
244         void *buf;
245         /* Start with standard stuff */
246         len = sizeof(struct ast_frame) + AST_FRIENDLY_OFFSET + f->datalen;
247         /* If we have a source, add space for it */
248         if (f->src && strlen(f->src))
249                 len += strlen(f->src) + 1;
250         buf = malloc(len);
251         if (!buf)
252                 return NULL;
253         out = buf;
254         /* Set us as having malloc'd header only, so it will eventually
255            get freed. */
256         out->frametype = f->frametype;
257         out->subclass = f->subclass;
258         out->datalen = f->datalen;
259         out->samples = f->samples;
260         out->mallocd = AST_MALLOCD_HDR;
261         out->offset = AST_FRIENDLY_OFFSET;
262         out->data = buf + sizeof(struct ast_frame) + AST_FRIENDLY_OFFSET;
263         if (f->src && strlen(f->src)) {
264                 out->src = out->data + f->datalen;
265                 /* Must have space since we allocated for it */
266                 strcpy(out->src, f->src);
267         } else
268                 out->src = NULL;
269         out->prev = NULL;
270         out->next = NULL;
271         memcpy(out->data, f->data, out->datalen);       
272         return out;
273 }
274
275 struct ast_frame *ast_fr_fdread(int fd)
276 {
277         char buf[65536];
278         int res;
279         int ttl = sizeof(struct ast_frame);
280         struct ast_frame *f = (struct ast_frame *)buf;
281         /* Read a frame directly from there.  They're always in the
282            right format. */
283         
284         while(ttl) {
285                 res = read(fd, buf, ttl);
286                 if (res < 0) {
287                         ast_log(LOG_WARNING, "Bad read on %d: %s\n", fd, strerror(errno));
288                         return NULL;
289                 }
290                 ttl -= res;
291         }
292         
293         /* read the frame header */
294         f->mallocd = 0;
295         /* Re-write data position */
296         f->data = buf + sizeof(struct ast_frame);
297         f->offset = 0;
298         /* Forget about being mallocd */
299         f->mallocd = 0;
300         /* Re-write the source */
301         f->src = __FUNCTION__;
302         if (f->datalen > sizeof(buf) - sizeof(struct ast_frame)) {
303                 /* Really bad read */
304                 ast_log(LOG_WARNING, "Strange read (%d bytes)\n", f->datalen);
305                 return NULL;
306         }
307         if (f->datalen) {
308                 if ((res = read(fd, f->data, f->datalen)) != f->datalen) {
309                         /* Bad read */
310                         ast_log(LOG_WARNING, "How very strange, expected %d, got %d\n", f->datalen, res);
311                         return NULL;
312                 }
313         }
314         if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP)) {
315                 return NULL;
316         }
317         return ast_frisolate(f);
318 }
319
320 /* Some convenient routines for sending frames to/from stream or datagram
321    sockets, pipes, etc (maybe even files) */
322
323 int ast_fr_fdwrite(int fd, struct ast_frame *frame)
324 {
325         /* Write the frame exactly */
326         if (write(fd, frame, sizeof(struct ast_frame)) != sizeof(struct ast_frame)) {
327                 ast_log(LOG_WARNING, "Write error: %s\n", strerror(errno));
328                 return -1;
329         }
330         if (write(fd, frame->data, frame->datalen) != frame->datalen) {
331                 ast_log(LOG_WARNING, "Write error: %s\n", strerror(errno));
332                 return -1;
333         }
334         return 0;
335 }
336
337 int ast_fr_fdhangup(int fd)
338 {
339         struct ast_frame hangup = {
340                 AST_FRAME_CONTROL,
341                 AST_CONTROL_HANGUP
342         };
343         return ast_fr_fdwrite(fd, &hangup);
344 }
345
346 char* ast_getformatname(int format)
347 {
348         if (format == AST_FORMAT_G723_1) 
349                 return "G723";
350         else if (format == AST_FORMAT_GSM)
351                 return "GSM";
352         else if (format == AST_FORMAT_ULAW)
353                 return "ULAW";
354         else if (format == AST_FORMAT_ALAW)
355                 return "ALAW";
356         else if (format == AST_FORMAT_MP3)
357                 return "MP3";
358         else if (format == AST_FORMAT_SLINEAR)
359                 return "SLINR";
360         else if (format == AST_FORMAT_LPC10)
361                 return "LPC10";
362         else if (format == AST_FORMAT_ADPCM)
363                 return "ADPCM";
364         else if (format == AST_FORMAT_G729A)
365                 return "G729A";
366         else if (format == AST_FORMAT_SPEEX)
367                 return "SPEEX";
368         else if (format == AST_FORMAT_ILBC)
369                 return "ILBC";
370         else if (format == AST_FORMAT_JPEG)
371                 return "JPEG";
372         else if (format == AST_FORMAT_PNG)
373                 return "PNG";
374         else if (format == AST_FORMAT_H261)
375                 return "H261";
376         else if (format == AST_FORMAT_H263)
377                 return "H263";
378         return "UNKN";
379 }
380
381 int ast_getformatbyname(char *name)
382 {
383         if (!strcasecmp(name, "g723.1")) 
384                 return AST_FORMAT_G723_1;
385         else if (!strcasecmp(name, "gsm"))
386                 return AST_FORMAT_GSM;
387         else if (!strcasecmp(name, "ulaw"))
388                 return AST_FORMAT_ULAW;
389         else if (!strcasecmp(name, "alaw"))
390                 return AST_FORMAT_ALAW;
391         else if (!strcasecmp(name, "mp3"))
392                 return AST_FORMAT_MP3;
393         else if (!strcasecmp(name, "slinear"))
394                 return AST_FORMAT_SLINEAR;
395         else if (!strcasecmp(name, "lpc10"))
396                 return AST_FORMAT_LPC10;
397         else if (!strcasecmp(name, "adpcm"))
398                 return AST_FORMAT_ADPCM;
399         else if (!strcasecmp(name, "g729"))
400                 return AST_FORMAT_G729A;
401         else if (!strcasecmp(name, "speex"))
402                 return AST_FORMAT_SPEEX;
403         else if (!strcasecmp(name, "ilbc"))
404                 return AST_FORMAT_ILBC;
405         else if (!strcasecmp(name, "h261"))
406                 return AST_FORMAT_H261;
407         else if (!strcasecmp(name, "h263"))
408                 return AST_FORMAT_H263;
409         else if (!strcasecmp(name, "all"))
410                 return 0x7FFFFFFF;
411         return 0;
412 }
413
414 char *ast_codec2str(int codec) {
415         static char codecs[25][30] = {
416                 /* Audio formats */
417                 "G.723.1",                    /*  0 */
418                 "GSM",                        /*  1 */
419                 "G.711 u-law",                /*  2 */
420                 "G.711 A-law",                /*  3 */
421                 "MPEG-2 layer 3",             /*  4 */
422                 "ADPCM",                      /*  5 */
423                 "16 bit Signed Linear PCM",   /*  6 */
424                 "LPC10",                      /*  7 */
425                 "G.729A audio",               /*  8 */
426                 "SpeeX",                      /*  9 */
427                 "iLBC",                       /* 10 */
428                 "undefined",                  /* 11 */
429                 "undefined",                  /* 12 */
430                 "undefined",                  /* 13 */
431                 "undefined",                  /* 14 */
432                 "Maximum audio format",       /* 15 */
433         /* Image formats */
434                 "JPEG image",                 /* 16 */
435                 "PNG image",                  /* 17 */
436                 "H.261 Video",                /* 18 */
437                 "H.263 Video",                /* 19 */
438                 "undefined",                  /* 20 */
439                 "undefined",                  /* 21 */
440                 "undefined",                  /* 22 */
441                 "undefined",                  /* 23 */
442         "Maximum video format",       /* 24 */
443                 };
444         return codecs[codec];
445 }
446
447 static int show_codecs(int fd, int argc, char *argv[])
448 {
449         int i, found=0;
450
451         if ((argc < 2) || (argc > 3))
452                 return RESULT_SHOWUSAGE;
453
454         if ((argc == 2) || (!strcasecmp(argv[1],"audio"))) {
455                 found = 1;
456                 for (i=0;i<11;i++)
457                         ast_cli(fd, "%8d (1 << %2d)  %s\n",1 << i,i,ast_codec2str(i));
458         }
459
460         if ((argc == 2) || (!strcasecmp(argv[1],"image"))) {
461                 found = 1;
462                 for (i=16;i<18;i++)
463                         ast_cli(fd, "%8d (1 << %2d)  %s\n",1 << i,i,ast_codec2str(i));
464         }
465
466         if ((argc == 2) || (!strcasecmp(argv[1],"video"))) {
467                 found = 1;
468                 for (i=18;i<20;i++)
469                         ast_cli(fd, "%8d (1 << %2d)  %s\n",1 << i,i,ast_codec2str(i));
470         }
471
472         if (! found)
473                 return RESULT_SHOWUSAGE;
474         else
475                 return RESULT_SUCCESS;
476 }
477
478 static char frame_show_codecs_usage[] =
479 "Usage: show [audio|video|image] codecs\n"
480 "       Displays codec mapping\n";
481
482 struct ast_cli_entry cli_show_codecs =
483 { { "show", "codecs", NULL }, show_codecs, "Shows codecs", frame_show_codecs_usage };
484 struct ast_cli_entry cli_show_codecs_audio =
485 { { "show", "audio", "codecs", NULL }, show_codecs, "Shows audio codecs", frame_show_codecs_usage };
486 struct ast_cli_entry cli_show_codecs_video =
487 { { "show", "video", "codecs", NULL }, show_codecs, "Shows video codecs", frame_show_codecs_usage };
488 struct ast_cli_entry cli_show_codecs_image =
489 { { "show", "image", "codecs", NULL }, show_codecs, "Shows image codecs", frame_show_codecs_usage };
490
491 static int show_codec_n(int fd, int argc, char *argv[])
492 {
493         int codec, i, found=0;
494
495         if (argc != 3)
496                 return RESULT_SHOWUSAGE;
497
498         if (sscanf(argv[2],"%d",&codec) != 1)
499                 return RESULT_SHOWUSAGE;
500
501         for (i=0;i<32;i++)
502                 if (codec == (1 << i)) {
503                         found = 1;
504                         ast_cli(fd, "%d (1 << %d)  %s\n",1 << i,i,ast_codec2str(i));
505                 }
506
507         if (! found)
508                 ast_cli(fd, "Codec %d not found\n", codec);
509
510         return RESULT_SUCCESS;
511 }
512
513 static char frame_show_codec_n_usage[] =
514 "Usage: show codec <number>\n"
515 "       Displays codec mapping\n";
516
517 struct ast_cli_entry cli_show_codec_n =
518 { { "show", "codec", NULL }, show_codec_n, "Shows a specific codec", frame_show_codec_n_usage };
519
520 void ast_frame_dump(char *name, struct ast_frame *f, char *prefix)
521 {
522         char *n = "unknown";
523         char ftype[40] = "Unknown Frametype";
524         char cft[80];
525         char subclass[40] = "Unknown Subclass";
526         char csub[80];
527         char moreinfo[40] = "";
528         char cn[40];
529         char cp[40];
530         char cmn[40];
531         if (name)
532                 n = name;
533         if (!f) {
534                 ast_verbose("%s [ %s (NULL) ] [%s]\n", 
535                         term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)),
536                         term_color(cft, "HANGUP", COLOR_BRRED, COLOR_BLACK, sizeof(cft)), 
537                         term_color(cn, n, COLOR_YELLOW, COLOR_BLACK, sizeof(cn)));
538                 return;
539         }
540         /* XXX We should probably print one each of voice and video when the format changes XXX */
541         if (f->frametype == AST_FRAME_VOICE)
542                 return;
543         if (f->frametype == AST_FRAME_VIDEO)
544                 return;
545         switch(f->frametype) {
546         case AST_FRAME_DTMF:
547                 strcpy(ftype, "DTMF");
548                 subclass[0] = f->subclass;
549                 subclass[1] = '\0';
550                 break;
551         case AST_FRAME_CONTROL:
552                 strcpy(ftype, "Control");
553                 switch(f->subclass) {
554                 case AST_CONTROL_HANGUP:
555                         strcpy(subclass, "Hangup");
556                         break;
557                 case AST_CONTROL_RING:
558                         strcpy(subclass, "Ring");
559                         break;
560                 case AST_CONTROL_RINGING:
561                         strcpy(subclass, "Ringing");
562                         break;
563                 case AST_CONTROL_ANSWER:
564                         strcpy(subclass, "Answer");
565                         break;
566                 case AST_CONTROL_BUSY:
567                         strcpy(subclass, "Busy");
568                         break;
569                 case AST_CONTROL_TAKEOFFHOOK:
570                         strcpy(subclass, "Take Off Hook");
571                         break;
572                 case AST_CONTROL_OFFHOOK:
573                         strcpy(subclass, "Line Off Hook");
574                         break;
575                 case AST_CONTROL_CONGESTION:
576                         strcpy(subclass, "Congestion");
577                         break;
578                 case AST_CONTROL_FLASH:
579                         strcpy(subclass, "Flash");
580                         break;
581                 case AST_CONTROL_WINK:
582                         strcpy(subclass, "Wink");
583                         break;
584                 case AST_CONTROL_OPTION:
585                         strcpy(subclass, "Option");
586                         break;
587                 case AST_CONTROL_RADIO_KEY:
588                         strcpy(subclass, "Key Radio");
589                         break;
590                 case AST_CONTROL_RADIO_UNKEY:
591                         strcpy(subclass, "Unkey Radio");
592                         break;
593                 default:
594                         snprintf(subclass, sizeof(subclass), "Unknown control '%d'", f->subclass);
595                 }
596         case AST_FRAME_NULL:
597                 strcpy(ftype, "Null Frame");
598                 strcpy(subclass, "N/A");
599                 break;
600         case AST_FRAME_IAX:
601                 /* Should never happen */
602                 strcpy(ftype, "IAX Specific");
603                 snprintf(subclass, sizeof(subclass), "IAX Frametype %d", f->subclass);
604                 break;
605         case AST_FRAME_TEXT:
606                 strcpy(ftype, "Text");
607                 strcpy(subclass, "N/A");
608                 strncpy(moreinfo, f->data, sizeof(moreinfo) - 1);
609                 break;
610         case AST_FRAME_IMAGE:
611                 strcpy(ftype, "Image");
612                 snprintf(subclass, sizeof(subclass), "Image format %s\n", ast_getformatname(f->subclass));
613                 break;
614         case AST_FRAME_HTML:
615                 strcpy(ftype, "HTML");
616                 switch(f->subclass) {
617                 case AST_HTML_URL:
618                         strcpy(subclass, "URL");
619                         strncpy(moreinfo, f->data, sizeof(moreinfo) - 1);
620                         break;
621                 case AST_HTML_DATA:
622                         strcpy(subclass, "Data");
623                         break;
624                 case AST_HTML_BEGIN:
625                         strcpy(subclass, "Begin");
626                         break;
627                 case AST_HTML_END:
628                         strcpy(subclass, "End");
629                         break;
630                 case AST_HTML_LDCOMPLETE:
631                         strcpy(subclass, "Load Complete");
632                         break;
633                 case AST_HTML_NOSUPPORT:
634                         strcpy(subclass, "No Support");
635                         break;
636                 case AST_HTML_LINKURL:
637                         strcpy(subclass, "Link URL");
638                         strncpy(moreinfo, f->data, sizeof(moreinfo) - 1);
639                         break;
640                 case AST_HTML_UNLINK:
641                         strcpy(subclass, "Unlink");
642                         break;
643                 case AST_HTML_LINKREJECT:
644                         strcpy(subclass, "Link Reject");
645                         break;
646                 default:
647                         snprintf(subclass, sizeof(subclass), "Unknown HTML frame '%d'\n", f->subclass);
648                         break;
649                 }
650                 break;
651         default:
652                 snprintf(ftype, sizeof(ftype), "Unknown Frametype '%d'", f->frametype);
653         }
654         if (strlen(moreinfo))
655                 ast_verbose("%s [ TYPE: %s (%d) SUBCLASS: %s (%d) '%s' ] [%s]\n",  
656                         term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)),
657                         term_color(cft, ftype, COLOR_BRRED, COLOR_BLACK, sizeof(cft)),
658                         f->frametype, 
659                         term_color(csub, subclass, COLOR_BRCYAN, COLOR_BLACK, sizeof(csub)),
660                         f->subclass, 
661                         term_color(cmn, moreinfo, COLOR_BRGREEN, COLOR_BLACK, sizeof(cmn)),
662                         term_color(cn, n, COLOR_YELLOW, COLOR_BLACK, sizeof(cn)));
663         else
664                 ast_verbose("%s [ TYPE: %s (%d) SUBCLASS: %s (%d) ] [%s]\n",  
665                         term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)),
666                         term_color(cft, ftype, COLOR_BRRED, COLOR_BLACK, sizeof(cft)),
667                         f->frametype, 
668                         term_color(csub, subclass, COLOR_BRCYAN, COLOR_BLACK, sizeof(csub)),
669                         f->subclass, 
670                         term_color(cn, n, COLOR_YELLOW, COLOR_BLACK, sizeof(cn)));
671
672 }
673
674
675 #ifdef TRACE_FRAMES
676 static int show_frame_stats(int fd, int argc, char *argv[])
677 {
678         struct ast_frame *f;
679         int x=1;
680         if (argc != 3)
681                 return RESULT_SHOWUSAGE;
682         ast_cli(fd, "     Framer Statistics     \n");
683         ast_cli(fd, "---------------------------\n");
684         ast_cli(fd, "Total allocated headers: %d\n", headers);
685         ast_cli(fd, "Queue Dump:\n");
686         ast_mutex_lock(&framelock);
687         for (f=headerlist; f; f = f->next) {
688                 ast_cli(fd, "%d.  Type %d, subclass %d from %s\n", x++, f->frametype, f->subclass, f->src ? f->src : "<Unknown>");
689         }
690         ast_mutex_unlock(&framelock);
691         return RESULT_SUCCESS;
692 }
693
694 static char frame_stats_usage[] =
695 "Usage: show frame stats\n"
696 "       Displays debugging statistics from framer\n";
697
698 struct ast_cli_entry cli_frame_stats =
699 { { "show", "frame", "stats", NULL }, show_frame_stats, "Shows frame statistics", frame_stats_usage };
700 #endif
701
702 int init_framer(void)
703 {
704 #ifdef TRACE_FRAMES
705         ast_cli_register(&cli_frame_stats);
706 #endif
707         ast_cli_register(&cli_show_codecs);
708         ast_cli_register(&cli_show_codecs_audio);
709         ast_cli_register(&cli_show_codecs_video);
710         ast_cli_register(&cli_show_codecs_image);
711         ast_cli_register(&cli_show_codec_n);
712         return 0;       
713 }