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make codec pointers more reliable

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8958 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2008-07-09 16:44:19 +00:00
parent 32b3a852db
commit 55399ddf61
3 changed files with 78 additions and 6 deletions
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2
src/include/private/switch_core_pvt.h
View File

@ -105,7 +105,9 @@ struct switch_core_session {
switch_io_event_hooks_t event_hooks; switch_io_event_hooks_t event_hooks;
switch_codec_t *read_codec; switch_codec_t *read_codec;
switch_codec_t *real_read_codec;
switch_codec_t *write_codec; switch_codec_t *write_codec;
switch_codec_t *real_write_codec;
switch_codec_t *video_read_codec; switch_codec_t *video_read_codec;
switch_codec_t *video_write_codec; switch_codec_t *video_write_codec;

14
src/include/switch_core.h
View File

@ -1129,6 +1129,13 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(_In_ switch_c
*/ */
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_read_codec(_In_ switch_core_session_t *session); SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_read_codec(_In_ switch_core_session_t *session);
/*!
\brief Retrieve the effevtive read codec from a given session
\param session session to retrieve from
\return a pointer to the codec
*/
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_effective_read_codec(_In_ switch_core_session_t *session);
/*! /*!
\brief Assign the write codec to a given session \brief Assign the write codec to a given session
\param session session to add the codec to \param session session to add the codec to
@ -1144,6 +1151,13 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_write_codec(_In_ switch_
*/ */
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_write_codec(_In_ switch_core_session_t *session); SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_write_codec(_In_ switch_core_session_t *session);
/*!
\brief Retrieve the effevtive write codec from a given session
\param session session to retrieve from
\return a pointer to the codec
*/
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_effective_write_codec(_In_ switch_core_session_t *session);
/*! /*!
\brief Assign the video_read codec to a given session \brief Assign the video_read codec to a given session
\param session session to add the codec to \param session session to add the codec to

68
src/switch_core_codec.c
View File

@ -49,7 +49,30 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_s
switch_channel_t *channel = switch_core_session_get_channel(session); switch_channel_t *channel = switch_core_session_get_channel(session);
char tmp[30]; char tmp[30];
switch_assert(codec->implementation); if (!codec || !codec->implementation) {
if (session->real_read_codec) {
session->read_codec = session->real_read_codec;
session->real_read_codec = NULL;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot set NULL codec!\n");
return SWITCH_STATUS_FALSE;
}
} else if (session->read_codec) {
if (session->real_read_codec) {
if (codec == session->real_read_codec) {
session->read_codec = codec;
session->real_read_codec = NULL;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot double-set codec!\n");
return SWITCH_STATUS_FALSE;
}
} else {
session->real_read_codec = session->read_codec;
session->read_codec = codec;
}
} else {
session->read_codec = codec;
}
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) { if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(session->channel, event); switch_channel_event_set_data(session->channel, event);
@ -65,7 +88,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_s
switch_snprintf(tmp, sizeof(tmp), "%d", codec->implementation->actual_samples_per_second); switch_snprintf(tmp, sizeof(tmp), "%d", codec->implementation->actual_samples_per_second);
switch_channel_set_variable(channel, "read_rate", tmp); switch_channel_set_variable(channel, "read_rate", tmp);
session->read_codec = codec;
session->raw_read_frame.codec = session->read_codec; session->raw_read_frame.codec = session->read_codec;
session->raw_write_frame.codec = session->read_codec; session->raw_write_frame.codec = session->read_codec;
session->enc_read_frame.codec = session->read_codec; session->enc_read_frame.codec = session->read_codec;
@ -74,18 +97,46 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_s
return SWITCH_STATUS_SUCCESS; return SWITCH_STATUS_SUCCESS;
} }
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_read_codec(switch_core_session_t *session) SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_effective_read_codec(switch_core_session_t *session)
{ {
return session->read_codec; return session->read_codec;
} }
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_read_codec(switch_core_session_t *session)
{
return session->real_read_codec ? session->real_read_codec : session->read_codec;
}
SWITCH_DECLARE(switch_status_t) switch_core_session_set_write_codec(switch_core_session_t *session, switch_codec_t *codec) SWITCH_DECLARE(switch_status_t) switch_core_session_set_write_codec(switch_core_session_t *session, switch_codec_t *codec)
{ {
switch_event_t *event; switch_event_t *event;
switch_channel_t *channel = switch_core_session_get_channel(session); switch_channel_t *channel = switch_core_session_get_channel(session);
char tmp[30]; char tmp[30];
switch_assert(codec->implementation); if (!codec || !codec->implementation) {
if (session->real_write_codec) {
session->write_codec = session->real_write_codec;
session->real_write_codec = NULL;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot set NULL codec!\n");
return SWITCH_STATUS_FALSE;
}
} else if (session->write_codec) {
if (session->real_write_codec) {
if (codec == session->real_write_codec) {
session->write_codec = codec;
session->real_write_codec = NULL;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot double-set codec!\n");
return SWITCH_STATUS_FALSE;
}
} else {
session->real_write_codec = session->write_codec;
session->write_codec = codec;
}
} else {
session->write_codec = codec;
}
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) { if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(session->channel, event); switch_channel_event_set_data(session->channel, event);
@ -102,13 +153,18 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_set_write_codec(switch_core_
switch_snprintf(tmp, sizeof(tmp), "%d", codec->implementation->actual_samples_per_second); switch_snprintf(tmp, sizeof(tmp), "%d", codec->implementation->actual_samples_per_second);
switch_channel_set_variable(channel, "write_rate", tmp); switch_channel_set_variable(channel, "write_rate", tmp);
session->write_codec = codec;
return SWITCH_STATUS_SUCCESS; return SWITCH_STATUS_SUCCESS;
} }
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_effective_write_codec(switch_core_session_t *session)
{
return session->write_codec;
}
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_write_codec(switch_core_session_t *session) SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_write_codec(switch_core_session_t *session)
{ {
return session->write_codec; return session->real_write_codec ? session->real_write_codec : session->write_codec;
} }