internal_timing: Remove the option and always make it enabled if a timing module is loaded.

The masquerade supertest frequently fails because either the local channel
chain doesn't completely optimize out or the DTMF handshake doesn't
completely get accross.  Local channel optimization requires frames
flowing to trigger when optimization can happen.  When optimization
happens the media frame that triggered the optimization is dropped.
Sending DTMF requires frames to flow in the other direction for timing
purposes while sending nothing.  If internal timing is not enabled when
MOH is playing, Asterisk switches to received timing when an audio frame
is received.  With optimization dropping media frames and MOH not sending
frames unless it receives frames, occasionaly there are no more frames
being passed and the test fails.

* The asterisk command line -I option and the asterisk.conf
internal_timing option are removed.  Asterisk now always uses internal
timing when needed if any timing module is loaded.  The issue
ASTERISK-14861 did this quite awhile ago in v1.4 but effectively is broken
if other internal timing modules besides DAHDI are used.  The
ast_read_generator_actions() now only does received timing if it has no
choice for frame generators like MOH, silence, and playback streaming.

* Cleaned up some code dealing with frame generators in
ast_deactivate_generator(), generator_write_format_change(),
ast_activate_generator(), and ast_channel_stop_silence_generator().

* Removed ast_internal_timing_enabled(), AST_OPT_FLAG_INTERNAL_TIMING, and
ast_opt_internal_timing.

ASTERISK-22846 #close
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/3414/
........

Merged revisions 411715 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 411716 from http://svn.asterisk.org/svn/asterisk/branches/11
........

Merged revisions 411717 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@411724 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 0 insertions, 8 deletions

diff --git a/main/asterisk.c b/main/asterisk.c
index ffa9b6338..83a451852 100644
--- a/main/asterisk.c
+++ b/main/asterisk.c
@@ -637,7 +637,6 @@ static char *handle_show_settings(struct ast_cli_entry *e, int cmd, struct ast_c
 	ast_cli(a->fd, "  User name and group:         %s/%s\n", ast_config_AST_RUN_USER, ast_config_AST_RUN_GROUP);
 	ast_cli(a->fd, "  Executable includes:         %s\n", ast_test_flag(&ast_options, AST_OPT_FLAG_EXEC_INCLUDES) ? "Enabled" : "Disabled");
 	ast_cli(a->fd, "  Transcode via SLIN:          %s\n", ast_test_flag(&ast_options, AST_OPT_FLAG_TRANSCODE_VIA_SLIN) ? "Enabled" : "Disabled");
-	ast_cli(a->fd, "  Internal timing:             %s\n", ast_test_flag(&ast_options, AST_OPT_FLAG_INTERNAL_TIMING) ? "Enabled" : "Disabled");
 	ast_cli(a->fd, "  Transmit silence during rec: %s\n", ast_test_flag(&ast_options, AST_OPT_FLAG_TRANSMIT_SILENCE) ? "Enabled" : "Disabled");
 	ast_cli(a->fd, "  Generic PLC:                 %s\n", ast_test_flag(&ast_options, AST_OPT_FLAG_GENERIC_PLC) ? "Enabled" : "Disabled");
 	ast_cli(a->fd, "  Min DTMF duration::          %u\n", option_dtmfminduration);
@@ -3363,7 +3362,6 @@ static int show_cli_help(void)
 	printf("   -g              Dump core in case of a crash\n");
 	printf("   -h              This help screen\n");
 	printf("   -i              Initialize crypto keys at startup\n");
-	printf("   -I              Enable internal timing if DAHDI timer is available\n");
 	printf("   -L <load>       Limit the maximum load average before rejecting new calls\n");
 	printf("   -M <value>      Limit the maximum number of calls to the specified value\n");
 	printf("   -m              Mute debugging and console output on the console\n");
@@ -3539,9 +3537,6 @@ static void ast_readconfig(void)
 		/* Transmit SLINEAR silence while a channel is being recorded or DTMF is being generated on a channel */
 		} else if (!strcasecmp(v->name, "transmit_silence_during_record") || !strcasecmp(v->name, "transmit_silence")) {
 			ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_TRANSMIT_SILENCE);
-		/* Enable internal timing */
-		} else if (!strcasecmp(v->name, "internal_timing")) {
-			ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_INTERNAL_TIMING);
 		} else if (!strcasecmp(v->name, "mindtmfduration")) {
 			if (sscanf(v->value, "%30u", &option_dtmfminduration) != 1) {
 				option_dtmfminduration = AST_MIN_DTMF_DURATION;
@@ -3869,9 +3864,6 @@ int main(int argc, char *argv[])
 		case 'h':
 			show_cli_help();
 			exit(0);
-		case 'I':
-			ast_set_flag(&ast_options, AST_OPT_FLAG_INTERNAL_TIMING);
-			break;
 		case 'i':
 			ast_set_flag(&ast_options, AST_OPT_FLAG_INIT_KEYS);
 			break;