optionally send silence during recording (issue #5135)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6925 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
parent
236ce8f796
commit
03ceef35ac
10
app.c
10
app.c
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@ -560,6 +560,7 @@ int ast_play_and_record(struct ast_channel *chan, const char *playfile, const ch
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int dspsilence = 0;
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int dspsilence = 0;
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int gotsilence = 0; /* did we timeout for silence? */
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int gotsilence = 0; /* did we timeout for silence? */
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int rfmt=0;
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int rfmt=0;
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struct ast_silence_generator *silgen = NULL;
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if (silencethreshold < 0)
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if (silencethreshold < 0)
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silencethreshold = global_silence_threshold;
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silencethreshold = global_silence_threshold;
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@ -615,8 +616,6 @@ int ast_play_and_record(struct ast_channel *chan, const char *playfile, const ch
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if (path)
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if (path)
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ast_unlock_path(path);
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ast_unlock_path(path);
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if (maxsilence > 0) {
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if (maxsilence > 0) {
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sildet = ast_dsp_new(); /* Create the silence detector */
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sildet = ast_dsp_new(); /* Create the silence detector */
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if (!sildet) {
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if (!sildet) {
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@ -632,9 +631,13 @@ int ast_play_and_record(struct ast_channel *chan, const char *playfile, const ch
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return -1;
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return -1;
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}
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}
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}
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}
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/* Request a video update */
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/* Request a video update */
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ast_indicate(chan, AST_CONTROL_VIDUPDATE);
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ast_indicate(chan, AST_CONTROL_VIDUPDATE);
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if (option_transmit_silence_during_record)
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silgen = ast_channel_start_silence_generator(chan);
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if (x == fmtcnt) {
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if (x == fmtcnt) {
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/* Loop forever, writing the packets we read to the writer(s), until
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/* Loop forever, writing the packets we read to the writer(s), until
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we read a # or get a hangup */
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we read a # or get a hangup */
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@ -735,6 +738,9 @@ int ast_play_and_record(struct ast_channel *chan, const char *playfile, const ch
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ast_log(LOG_WARNING, "Error creating writestream '%s', format '%s'\n", recordfile, sfmt[x]);
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ast_log(LOG_WARNING, "Error creating writestream '%s', format '%s'\n", recordfile, sfmt[x]);
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}
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}
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if (silgen)
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ast_channel_stop_silence_generator(chan, silgen);
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*duration = end - start;
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*duration = end - start;
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for (x=0;x<fmtcnt;x++) {
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for (x=0;x<fmtcnt;x++) {
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@ -38,6 +38,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/translate.h"
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#include "asterisk/translate.h"
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#include "asterisk/dsp.h"
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#include "asterisk/dsp.h"
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#include "asterisk/utils.h"
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#include "asterisk/utils.h"
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#include "asterisk/options.h"
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static char *tdesc = "Trivial Record Application";
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static char *tdesc = "Trivial Record Application";
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@ -98,6 +99,8 @@ static int record_exec(struct ast_channel *chan, void *data)
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int option_quiet = 0;
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int option_quiet = 0;
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int rfmt = 0;
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int rfmt = 0;
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int flags;
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int flags;
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int waitres;
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struct ast_silence_generator *silgen = NULL;
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/* The next few lines of code parse out the filename and header from the input string */
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/* The next few lines of code parse out the filename and header from the input string */
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if (ast_strlen_zero(data)) { /* no data implies no filename or anything is present */
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if (ast_strlen_zero(data)) { /* no data implies no filename or anything is present */
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@ -199,123 +202,131 @@ static int record_exec(struct ast_channel *chan, void *data)
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}
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}
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}
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}
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if (!res) {
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if (res) {
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if (!option_quiet) {
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/* Some code to play a nice little beep to signify the start of the record operation */
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res = ast_streamfile(chan, "beep", chan->language);
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if (!res) {
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res = ast_waitstream(chan, "");
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} else {
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ast_log(LOG_WARNING, "ast_streamfile failed on %s\n", chan->name);
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}
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ast_stopstream(chan);
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}
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/* The end of beep code. Now the recording starts */
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if (silence > 0) {
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rfmt = chan->readformat;
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res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
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if (res < 0) {
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ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
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LOCAL_USER_REMOVE(u);
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return -1;
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}
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sildet = ast_dsp_new();
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if (!sildet) {
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ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
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LOCAL_USER_REMOVE(u);
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return -1;
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}
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ast_dsp_set_threshold(sildet, 256);
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}
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flags = option_append ? O_CREAT|O_APPEND|O_WRONLY : O_CREAT|O_TRUNC|O_WRONLY;
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s = ast_writefile( tmp, ext, NULL, flags , 0, 0644);
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if (s) {
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int waitres;
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/* Request a video update */
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ast_indicate(chan, AST_CONTROL_VIDUPDATE);
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if (maxduration <= 0)
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maxduration = -1;
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while ((waitres = ast_waitfor(chan, maxduration)) > -1) {
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if (maxduration > 0) {
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if (waitres == 0) {
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gottimeout = 1;
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break;
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}
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maxduration = waitres;
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}
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f = ast_read(chan);
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if (!f) {
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res = -1;
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break;
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}
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if (f->frametype == AST_FRAME_VOICE) {
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res = ast_writestream(s, f);
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if (res) {
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ast_log(LOG_WARNING, "Problem writing frame\n");
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break;
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}
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if (silence > 0) {
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dspsilence = 0;
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ast_dsp_silence(sildet, f, &dspsilence);
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if (dspsilence) {
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totalsilence = dspsilence;
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} else {
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totalsilence = 0;
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}
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if (totalsilence > silence) {
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/* Ended happily with silence */
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ast_frfree(f);
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gotsilence = 1;
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break;
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}
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}
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}
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if (f->frametype == AST_FRAME_VIDEO) {
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res = ast_writestream(s, f);
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if (res) {
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ast_log(LOG_WARNING, "Problem writing frame\n");
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break;
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}
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}
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if ((f->frametype == AST_FRAME_DTMF) &&
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(f->subclass == terminator)) {
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ast_frfree(f);
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break;
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}
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ast_frfree(f);
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}
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if (!f) {
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ast_log(LOG_DEBUG, "Got hangup\n");
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res = -1;
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}
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if (gotsilence) {
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ast_stream_rewind(s, silence-1000);
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ast_truncstream(s);
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} else if (!gottimeout) {
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/* Strip off the last 1/4 second of it */
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ast_stream_rewind(s, 250);
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ast_truncstream(s);
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}
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ast_closestream(s);
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} else
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ast_log(LOG_WARNING, "Could not create file %s\n", filename);
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} else
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ast_log(LOG_WARNING, "Could not answer channel '%s'\n", chan->name);
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ast_log(LOG_WARNING, "Could not answer channel '%s'\n", chan->name);
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goto out;
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}
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if (!option_quiet) {
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/* Some code to play a nice little beep to signify the start of the record operation */
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res = ast_streamfile(chan, "beep", chan->language);
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if (!res) {
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res = ast_waitstream(chan, "");
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} else {
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ast_log(LOG_WARNING, "ast_streamfile failed on %s\n", chan->name);
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}
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ast_stopstream(chan);
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}
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/* The end of beep code. Now the recording starts */
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if (silence > 0) {
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rfmt = chan->readformat;
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res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
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if (res < 0) {
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ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
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LOCAL_USER_REMOVE(u);
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return -1;
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}
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sildet = ast_dsp_new();
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if (!sildet) {
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ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
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LOCAL_USER_REMOVE(u);
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return -1;
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}
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ast_dsp_set_threshold(sildet, 256);
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}
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flags = option_append ? O_CREAT|O_APPEND|O_WRONLY : O_CREAT|O_TRUNC|O_WRONLY;
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s = ast_writefile( tmp, ext, NULL, flags , 0, 0644);
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if (!s) {
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ast_log(LOG_WARNING, "Could not create file %s\n", filename);
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goto out;
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}
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if (option_transmit_silence_during_record)
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silgen = ast_channel_start_silence_generator(chan);
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/* Request a video update */
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ast_indicate(chan, AST_CONTROL_VIDUPDATE);
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if (maxduration <= 0)
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maxduration = -1;
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while ((waitres = ast_waitfor(chan, maxduration)) > -1) {
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if (maxduration > 0) {
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if (waitres == 0) {
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gottimeout = 1;
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break;
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}
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maxduration = waitres;
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}
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f = ast_read(chan);
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if (!f) {
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res = -1;
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break;
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}
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if (f->frametype == AST_FRAME_VOICE) {
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res = ast_writestream(s, f);
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if (res) {
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ast_log(LOG_WARNING, "Problem writing frame\n");
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break;
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}
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if (silence > 0) {
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dspsilence = 0;
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ast_dsp_silence(sildet, f, &dspsilence);
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if (dspsilence) {
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totalsilence = dspsilence;
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} else {
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totalsilence = 0;
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}
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if (totalsilence > silence) {
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/* Ended happily with silence */
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ast_frfree(f);
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gotsilence = 1;
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break;
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}
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}
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}
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if (f->frametype == AST_FRAME_VIDEO) {
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res = ast_writestream(s, f);
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if (res) {
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ast_log(LOG_WARNING, "Problem writing frame\n");
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break;
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}
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}
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if ((f->frametype == AST_FRAME_DTMF) &&
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(f->subclass == terminator)) {
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ast_frfree(f);
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break;
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}
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ast_frfree(f);
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}
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if (!f) {
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ast_log(LOG_DEBUG, "Got hangup\n");
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res = -1;
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}
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if (gotsilence) {
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ast_stream_rewind(s, silence-1000);
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ast_truncstream(s);
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} else if (!gottimeout) {
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/* Strip off the last 1/4 second of it */
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ast_stream_rewind(s, 250);
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ast_truncstream(s);
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}
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ast_closestream(s);
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if (silgen)
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ast_channel_stop_silence_generator(chan, silgen);
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out:
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if ((silence > 0) && rfmt) {
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if ((silence > 0) && rfmt) {
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res = ast_set_read_format(chan, rfmt);
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res = ast_set_read_format(chan, rfmt);
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if (res)
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if (res)
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@ -142,6 +142,7 @@ int option_timestamp = 0;
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int option_overrideconfig = 0;
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int option_overrideconfig = 0;
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int option_reconnect = 0;
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int option_reconnect = 0;
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int option_transcode_slin = 1;
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int option_transcode_slin = 1;
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int option_transmit_silence_during_record = 0;
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int option_maxcalls = 0;
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int option_maxcalls = 0;
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double option_maxload = 0.0;
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double option_maxload = 0.0;
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int option_dontwarn = 0;
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int option_dontwarn = 0;
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@ -1869,6 +1870,9 @@ static void ast_readconfig(void) {
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/* Build transcode paths via SLINEAR, instead of directly */
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/* Build transcode paths via SLINEAR, instead of directly */
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} else if (!strcasecmp(v->name, "transcode_via_sln")) {
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} else if (!strcasecmp(v->name, "transcode_via_sln")) {
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option_transcode_slin = ast_true(v->value);
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option_transcode_slin = ast_true(v->value);
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/* Transmit SLINEAR silence while a channel is being recorded */
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} else if (!strcasecmp(v->name, "transmit_silence_during_record")) {
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option_transmit_silence_during_record = ast_true(v->value);
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} else if (!strcasecmp(v->name, "maxcalls")) {
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} else if (!strcasecmp(v->name, "maxcalls")) {
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if ((sscanf(v->value, "%d", &option_maxcalls) != 1) || (option_maxcalls < 0)) {
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if ((sscanf(v->value, "%d", &option_maxcalls) != 1) || (option_maxcalls < 0)) {
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option_maxcalls = 0;
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option_maxcalls = 0;
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97
channel.c
97
channel.c
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@ -3921,3 +3921,100 @@ struct ast_frame *ast_channel_spy_read_frame(struct ast_channel_spy *spy, unsign
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return result;
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return result;
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}
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}
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static void *silence_generator_alloc(struct ast_channel *chan, void *data)
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{
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/* just store the data pointer in the channel structure */
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return data;
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}
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static void silence_generator_release(struct ast_channel *chan, void *data)
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{
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/* nothing to do */
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}
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static short normal_silence_buf[160] = { 0, };
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static struct ast_frame normal_silence_frame = {
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.frametype = AST_FRAME_VOICE,
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.subclass = AST_FORMAT_SLINEAR,
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.data = normal_silence_buf,
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.samples = 160,
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.datalen = sizeof(normal_silence_buf),
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};
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static int silence_generator_generate(struct ast_channel *chan, void *data, int len, int samples)
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{
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if (samples == 160) {
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if (ast_write(chan, &normal_silence_frame))
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return -1;
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} else {
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short buf[samples];
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int x;
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struct ast_frame frame = {
|
||||||
|
.frametype = AST_FRAME_VOICE,
|
||||||
|
.subclass = AST_FORMAT_SLINEAR,
|
||||||
|
.data = normal_silence_buf,
|
||||||
|
.samples = samples,
|
||||||
|
.datalen = sizeof(buf),
|
||||||
|
};
|
||||||
|
|
||||||
|
for (x = 0; x < samples; x++)
|
||||||
|
buf[x] = 0;
|
||||||
|
|
||||||
|
if (ast_write(chan, &frame))
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct ast_generator silence_generator = {
|
||||||
|
.alloc = silence_generator_alloc,
|
||||||
|
.release = silence_generator_release,
|
||||||
|
.generate = silence_generator_generate,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct ast_silence_generator {
|
||||||
|
int old_write_format;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct ast_silence_generator *ast_channel_start_silence_generator(struct ast_channel *chan)
|
||||||
|
{
|
||||||
|
struct ast_silence_generator *state;
|
||||||
|
|
||||||
|
if (!(state = calloc(1, sizeof(*state)))) {
|
||||||
|
ast_log(LOG_WARNING, "Could not allocate state structure\n");
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
state->old_write_format = chan->writeformat;
|
||||||
|
|
||||||
|
if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
|
||||||
|
ast_log(LOG_ERROR, "Could not set write format to SLINEAR\n");
|
||||||
|
free(state);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
ast_activate_generator(chan, &silence_generator, state);
|
||||||
|
|
||||||
|
if (option_debug)
|
||||||
|
ast_log(LOG_DEBUG, "Started silence generator on '%s'\n", chan->name);
|
||||||
|
|
||||||
|
return state;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ast_channel_stop_silence_generator(struct ast_channel *chan, struct ast_silence_generator *state)
|
||||||
|
{
|
||||||
|
if (!state)
|
||||||
|
return;
|
||||||
|
|
||||||
|
ast_deactivate_generator(chan);
|
||||||
|
|
||||||
|
if (option_debug)
|
||||||
|
ast_log(LOG_DEBUG, "Stopped silence generator on '%s'\n", chan->name);
|
||||||
|
|
||||||
|
if (ast_set_write_format(chan, state->old_write_format) < 0)
|
||||||
|
ast_log(LOG_ERROR, "Could not return write format to its original state\n");
|
||||||
|
|
||||||
|
free(state);
|
||||||
|
}
|
||||||
|
|
|
@ -39,24 +39,26 @@ astlogdir => /var/log/asterisk
|
||||||
;Under "options" you can enter configuration options
|
;Under "options" you can enter configuration options
|
||||||
;that you also can set with command line options
|
;that you also can set with command line options
|
||||||
|
|
||||||
verbose=0 ; Verbosity level for logging (-v)
|
verbose = 0 ; Verbosity level for logging (-v)
|
||||||
debug=3 ; Debug: "No" or value (1-4)
|
debug = 3 ; Debug: "No" or value (1-4)
|
||||||
nofork=yes | no ; Background execution disabled (-f)
|
nofork=yes | no ; Background execution disabled (-f)
|
||||||
console= yes | no ; Console mode (-c)
|
console= yes | no ; Console mode (-c)
|
||||||
highpriority = yes | no ; Execute with high priority (-p)
|
highpriority = yes | no ; Execute with high priority (-p)
|
||||||
initcrypto = yes | no ; Initialize crypto at startup (-i)
|
initcrypto = yes | no ; Initialize crypto at startup (-i)
|
||||||
nocolor = yes | no ; Disable ANSI colors (-n)
|
nocolor = yes | no ; Disable ANSI colors (-n)
|
||||||
dumpcore = yes | no ; Dump core on failure (-g)
|
dumpcore = yes | no ; Dump core on failure (-g)
|
||||||
quiet = yes | no ; Run quietly (-q)
|
quiet = yes | no ; Run quietly (-q)
|
||||||
timestamp = yes | no ; Force timestamping on log entries to console (-T)
|
timestamp = yes | no ; Force timestamping on log entries to console (-T)
|
||||||
execincludes = yes | no ; Allow #exec entries in configuration files
|
|
||||||
dontwarn = yes | no ; Don't over-inform the Asterisk sysadm, he's a guru
|
|
||||||
transcode_via_sln = yes | no ; Build transcode paths via SLINEAR
|
|
||||||
maxcalls = 255 ; The maximum number of concurrent calls you want to allow
|
|
||||||
maxload = 1.0 ; The maximum load average we accept calls for
|
|
||||||
|
|
||||||
;This option has no command line equivalent
|
;These options have no command line equivalent
|
||||||
cache_record_files = yes | no ; Cache record() files in another directory until completion record_cache_dir = <dir>
|
cache_record_files = yes | no ; Cache record() files in another directory until completion
|
||||||
|
record_cache_dir = <dir>
|
||||||
|
transcode_via_sln = yes | no ; Build transcode paths via SLINEAR
|
||||||
|
transmit_silence_during_record = yes | no ; send SLINEAR silence while channel is being recorded
|
||||||
|
maxload = 1.0 ; The maximum load average we accept calls for
|
||||||
|
maxcalls = 255 ; The maximum number of concurrent calls you want to allow
|
||||||
|
execincludes = yes | no ; Allow #exec entries in configuration files
|
||||||
|
dontwarn = yes | no ; Don't over-inform the Asterisk sysadm, he's a guru
|
||||||
|
|
||||||
[files]
|
[files]
|
||||||
; Changing the following lines may compromise your security
|
; Changing the following lines may compromise your security
|
||||||
|
|
|
@ -1099,6 +1099,10 @@ struct ast_frame *ast_channel_spy_read_frame(struct ast_channel_spy *spy, unsign
|
||||||
*/
|
*/
|
||||||
void ast_channel_spy_trigger_wait(struct ast_channel_spy *spy);
|
void ast_channel_spy_trigger_wait(struct ast_channel_spy *spy);
|
||||||
|
|
||||||
|
struct ast_silence_generator;
|
||||||
|
struct ast_silence_generator *ast_channel_start_silence_generator(struct ast_channel *chan);
|
||||||
|
void ast_channel_stop_silence_generator(struct ast_channel *chan, struct ast_silence_generator *state);
|
||||||
|
|
||||||
/* Misc. functions below */
|
/* Misc. functions below */
|
||||||
|
|
||||||
/* Helper function for migrating select to poll */
|
/* Helper function for migrating select to poll */
|
||||||
|
|
|
@ -42,6 +42,7 @@ extern int option_exec_includes;
|
||||||
extern int option_cache_record_files;
|
extern int option_cache_record_files;
|
||||||
extern int option_timestamp;
|
extern int option_timestamp;
|
||||||
extern int option_transcode_slin;
|
extern int option_transcode_slin;
|
||||||
|
extern int option_transmit_silence_during_record;
|
||||||
extern int option_maxcalls;
|
extern int option_maxcalls;
|
||||||
extern double option_maxload;
|
extern double option_maxload;
|
||||||
extern int option_dontwarn;
|
extern int option_dontwarn;
|
||||||
|
|
Loading…
Reference in New Issue