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add CF_MEDIA_PAUSE channel flag to allow waiting for IO before media codec is ready

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This could be used at endpoints where signalling and media negotiated separately like in H323
This commit is contained in:
Seven Du
2013-11-22 14:23:18 +08:00
parent b8dc07132a
commit 9c72dc950e
2 changed files with 24 additions and 0 deletions
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23
src/switch_core_io.c
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@@ -26,6 +26,7 @@
* Anthony Minessale II <anthm@freeswitch.org>
* Michael Jerris <mike@jerris.com>
* Paul D. Tinsley <pdt at jackhammer.org>
* Seven Du <dujinfang@gmail.com>
*
*
* switch_core_io.c -- Main Core Library (Media I/O)
@@ -45,6 +46,10 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_video_frame(switch_cor
return SWITCH_STATUS_FALSE;
}
if (switch_channel_test_flag(session->channel, CF_MEDIA_PAUSE)) {
return SWITCH_STATUS_SUCCESS;
}
if (session->endpoint_interface->io_routines->write_video_frame) {
if ((status = session->endpoint_interface->io_routines->write_video_frame(session, frame, flags, stream_id)) == SWITCH_STATUS_SUCCESS) {
for (ptr = session->event_hooks.video_write_frame; ptr; ptr = ptr->next) {
@@ -69,6 +74,12 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_read_video_frame(switch_core
return SWITCH_STATUS_FALSE;
}
if (switch_channel_test_flag(session->channel, CF_MEDIA_PAUSE)) {
*frame = &runtime.dummy_cng_frame;
switch_yield(20000);
return SWITCH_STATUS_SUCCESS;
}
if (session->endpoint_interface->io_routines->read_video_frame) {
if ((status = session->endpoint_interface->io_routines->read_video_frame(session, frame, flags, stream_id)) == SWITCH_STATUS_SUCCESS) {
for (ptr = session->event_hooks.video_read_frame; ptr; ptr = ptr->next) {
@@ -165,6 +176,14 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_read_frame(switch_core_sessi
*frame = &runtime.dummy_cng_frame;
return SWITCH_STATUS_SUCCESS;
}
if (switch_channel_test_flag(session->channel, CF_MEDIA_PAUSE)) {
switch_yield(20000);
*frame = &runtime.dummy_cng_frame;
// switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Media Paused!!!!\n");
return SWITCH_STATUS_SUCCESS;
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has no read codec.\n", switch_channel_get_name(session->channel));
switch_channel_hangup(session->channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION);
return SWITCH_STATUS_FALSE;
@@ -1033,6 +1052,10 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
}
}
if (switch_channel_test_flag(session->channel, CF_MEDIA_PAUSE)) {
return SWITCH_STATUS_SUCCESS;
}
if (!(session->write_codec && switch_core_codec_ready(session->write_codec)) && !pass_cng) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has no write codec.\n", switch_channel_get_name(session->channel));
switch_channel_hangup(session->channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION);