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Tweak bridge_early_media to support passthrough codecs

This commit is contained in:
Mathieu Rene 2010-04-23 17:09:27 -04:00
parent 5e4b0400dc
commit 72ec7b59ab
1 changed files with 117 additions and 58 deletions
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175
src/switch_ivr_originate.c
View File

@ -372,6 +372,38 @@ static switch_bool_t monitor_callback(switch_core_session_t *session, const char
return SWITCH_FALSE;
}
static void inherit_codec(switch_channel_t *caller_channel, switch_core_session_t *session)
{
const char *var = switch_channel_get_variable(caller_channel, "inherit_codec");
switch_channel_t *channel = switch_core_session_get_channel(session);
if (switch_true(var)) {
switch_codec_implementation_t impl = { 0 };
switch_codec_implementation_t video_impl = { 0 };
char tmp[128] = "";
if (switch_core_session_get_read_impl(session, &impl) == SWITCH_STATUS_SUCCESS) {
if (switch_core_session_get_video_read_impl(session, &impl) == SWITCH_STATUS_SUCCESS) {
switch_snprintf(tmp, sizeof(tmp), "%s@%uh@%ui,%s",
impl.iananame, impl.samples_per_second, impl.microseconds_per_packet / 1000,
video_impl.iananame);
} else {
switch_snprintf(tmp, sizeof(tmp), "%s@%uh@%ui",
impl.iananame, impl.samples_per_second, impl.microseconds_per_packet / 1000);
}
switch_channel_set_variable(caller_channel, "absolute_codec_string", tmp);
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(caller_channel), SWITCH_LOG_DEBUG, "Setting codec string on %s to %s\n",
switch_channel_get_name(caller_channel), tmp);
} else {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(caller_channel), SWITCH_LOG_WARNING,
"Error inheriting codec. Channel %s has no read codec yet.\n",
switch_channel_get_name(channel));
}
}
}
static uint8_t check_channel_status(originate_global_t *oglobals, originate_status_t *originate_status, uint32_t len)
{
@ -671,32 +703,7 @@ static uint8_t check_channel_status(originate_global_t *oglobals, originate_stat
end:
if (pindex > -1 && caller_channel && switch_channel_ready(caller_channel) && !switch_channel_media_ready(caller_channel)) {
const char *var = switch_channel_get_variable(caller_channel, "inherit_codec");
if (switch_true(var)) {
switch_codec_implementation_t impl = { 0 };
switch_codec_implementation_t video_impl = { 0 };
char tmp[128] = "";
if (switch_core_session_get_read_impl(originate_status[pindex].peer_session, &impl) == SWITCH_STATUS_SUCCESS) {
if (switch_core_session_get_video_read_impl(originate_status[pindex].peer_session, &impl) == SWITCH_STATUS_SUCCESS) {
switch_snprintf(tmp, sizeof(tmp), "%s@%uh@%ui,%s",
impl.iananame, impl.samples_per_second, impl.microseconds_per_packet / 1000,
video_impl.iananame);
} else {
switch_snprintf(tmp, sizeof(tmp), "%s@%uh@%ui",
impl.iananame, impl.samples_per_second, impl.microseconds_per_packet / 1000);
}
switch_channel_set_variable(caller_channel, "absolute_codec_string", tmp);
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(caller_channel), SWITCH_LOG_DEBUG, "Setting codec string on %s to %s\n",
switch_channel_get_name(caller_channel), tmp);
} else {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(originate_status[pindex].peer_channel), SWITCH_LOG_WARNING,
"Error inheriting codec. Channel %s has no read codec yet.\n",
switch_channel_get_name(originate_status[pindex].peer_channel));
}
}
inherit_codec(caller_channel, originate_status[pindex].peer_session);
}
if (send_ringback) {
@ -1051,7 +1058,7 @@ SWITCH_DECLARE(void) switch_process_import(switch_core_session_t *session, switc
}
static switch_status_t setup_ringback(originate_global_t *oglobals,
static switch_status_t setup_ringback(originate_global_t *oglobals, originate_status_t *originate_status, int len,
const char *ringback_data, ringback_t *ringback, switch_frame_t *write_frame, switch_codec_t *write_codec)
{
switch_status_t status = SWITCH_STATUS_SUCCESS;
@ -1061,6 +1068,10 @@ static switch_status_t setup_ringback(originate_global_t *oglobals,
if (!switch_channel_test_flag(caller_channel, CF_ANSWERED)
&& !switch_channel_test_flag(caller_channel, CF_EARLY_MEDIA)) {
if (oglobals->bridge_early_media > -1 && len == 1 && originate_status[0].peer_session &&
switch_channel_media_ready(originate_status[0].peer_channel)) {
inherit_codec(caller_channel, originate_status[0].peer_session);
}
if ((status = switch_channel_pre_answer(caller_channel)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(caller_channel), SWITCH_LOG_DEBUG, "%s Media Establishment Failed.\n",
switch_channel_get_name(caller_channel));
@ -1073,6 +1084,25 @@ static switch_status_t setup_ringback(originate_global_t *oglobals,
if (!(strrchr(ringback_data, '.') || strstr(ringback_data, SWITCH_URL_SEPARATOR))) {
ringback->asis++;
}
} else if (oglobals->bridge_early_media > -1 && zstr(ringback_data) && len == 1 && originate_status[0].peer_session) {
switch_codec_implementation_t read_impl = { 0 }, write_impl = { 0 };
if (switch_channel_ready(originate_status[0].peer_channel)
&& switch_core_session_get_read_impl(originate_status[0].peer_session, &read_impl) == SWITCH_STATUS_SUCCESS
&& switch_core_session_get_write_impl(oglobals->session, &write_impl) == SWITCH_STATUS_SUCCESS) {
if (read_impl.impl_id == write_impl.impl_id &&
read_impl.microseconds_per_packet == write_impl.microseconds_per_packet &&
read_impl.actual_samples_per_second == write_impl.actual_samples_per_second) {
ringback->asis++;
write_frame->codec = switch_core_session_get_write_codec(originate_status[0].peer_session);
write_frame->datalen = write_frame->codec->implementation->decoded_bytes_per_packet;
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(caller_channel), SWITCH_LOG_DEBUG, "bridge_early_media: passthrough enabled\n");
} else {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(caller_channel), SWITCH_LOG_DEBUG, "bridge_early_media: codecs don't match (%s@%uh@%di / %s@%uh@%di)\n",
read_impl.iananame, read_impl.actual_samples_per_second, read_impl.microseconds_per_packet / 1000,
write_impl.iananame, write_impl.actual_samples_per_second, write_impl.microseconds_per_packet / 1000);
}
}
}
if (!ringback->asis) {
@ -1553,6 +1583,7 @@ struct early_state {
switch_mutex_t *mutex;
switch_buffer_t *buffer;
int ready;
ringback_t *ringback;
};
typedef struct early_state early_state_t;
@ -1591,37 +1622,51 @@ static void *SWITCH_THREAD_FUNC early_thread_run(switch_thread_t *thread, void *
answered++;
}
if (!switch_core_codec_ready((&read_codecs[i]))) {
read_codec = switch_core_session_get_read_codec(session);
if (!state->ringback->asis) {
if (!switch_core_codec_ready((&read_codecs[i]))) {
read_codec = switch_core_session_get_read_codec(session);
if (switch_core_codec_init(&read_codecs[i],
"L16",
NULL,
read_codec->implementation->actual_samples_per_second,
read_codec->implementation->microseconds_per_packet / 1000,
1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec Error!\n");
} else {
switch_core_session_set_read_codec(session, &read_codecs[i]);
if (switch_core_codec_init(&read_codecs[i],
"L16",
NULL,
read_codec->implementation->actual_samples_per_second,
read_codec->implementation->microseconds_per_packet / 1000,
1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec Error!\n");
} else {
switch_core_session_set_read_codec(session, &read_codecs[i]);
}
}
}
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (SWITCH_READ_ACCEPTABLE(status)) {
data = (int16_t *) read_frame->data;
if (datalen < read_frame->datalen) {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (SWITCH_READ_ACCEPTABLE(status)) {
data = (int16_t *) read_frame->data;
if (datalen < read_frame->datalen) {
datalen = read_frame->datalen;
}
for (x = 0; x < (int) read_frame->datalen / 2; x++) {
sample = data[x] + mux_data[x];
switch_normalize_to_16bit(sample);
mux_data[x] = (int16_t) sample;
}
}
} else {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (SWITCH_READ_ACCEPTABLE(status)) {
datalen = read_frame->datalen;
}
for (x = 0; x < (int) read_frame->datalen / 2; x++) {
sample = data[x] + mux_data[x];
switch_normalize_to_16bit(sample);
mux_data[x] = (int16_t) sample;
}
break;
}
}
}
if (datalen) {
if (state->ringback->asis && datalen) {
uint16_t flen = datalen;
switch_mutex_lock(state->mutex);
switch_buffer_write(state->buffer, &flen, sizeof(uint16_t));
switch_buffer_write(state->buffer, read_frame->data, datalen);
switch_mutex_unlock(state->mutex);
} else if (datalen) {
switch_mutex_lock(state->mutex);
switch_buffer_write(state->buffer, mux_data, datalen);
switch_mutex_unlock(state->mutex);
@ -2758,9 +2803,10 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_originate(switch_core_session_t *sess
if (oglobals.ringback_ok && (oglobals.ring_ready || oglobals.instant_ringback ||
oglobals.sending_ringback > 1 || oglobals.bridge_early_media > -1)) {
if (oglobals.ringback_ok == 1) {
switch_status_t rst = setup_ringback(&oglobals, ringback_data, &ringback, &write_frame, &write_codec);
switch_status_t rst;
rst = setup_ringback(&oglobals, originate_status, and_argc, ringback_data, &ringback, &write_frame, &write_codec);
if (oglobals.bridge_early_media > -1) {
switch_threadattr_t *thd_attr = NULL;
switch_threadattr_create(&thd_attr, switch_core_session_get_pool(session));
@ -2768,6 +2814,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_originate(switch_core_session_t *sess
early_state.oglobals = &oglobals;
early_state.originate_status = originate_status;
early_state.ready = 1;
early_state.ringback = &ringback;
switch_mutex_init(&early_state.mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_buffer_create_dynamic(&early_state.buffer, 1024, 1024, 0);
switch_thread_create(&oglobals.ethread, thd_attr, early_thread_run, &early_state, switch_core_session_get_pool(session));
@ -2794,12 +2841,24 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_originate(switch_core_session_t *sess
continue;
}
if (oglobals.bridge_early_media > -1) {
if (oglobals.bridge_early_media > -1) {
write_frame.datalen = 0;
switch_mutex_lock(early_state.mutex);
if (switch_buffer_inuse(early_state.buffer) >= write_frame.codec->implementation->decoded_bytes_per_packet) {
write_frame.datalen = switch_buffer_read(early_state.buffer, write_frame.data,
write_frame.codec->implementation->decoded_bytes_per_packet);
if (ringback.asis) {
uint16_t mlen;
switch_size_t buflen = switch_buffer_inuse(early_state.buffer);
if (buflen > sizeof(uint16_t)) {
switch_buffer_peek(early_state.buffer, &mlen, sizeof(uint16_t));
if (buflen >= (mlen + sizeof(uint16_t))) {
switch_buffer_toss(early_state.buffer, sizeof(uint16_t));
write_frame.datalen = switch_buffer_read(early_state.buffer, write_frame.data, mlen);
}
}
} else {
if (switch_buffer_inuse(early_state.buffer) >= write_frame.codec->implementation->decoded_bytes_per_packet) {
write_frame.datalen = switch_buffer_read(early_state.buffer, write_frame.data,
write_frame.codec->implementation->decoded_bytes_per_packet);
}
}
switch_mutex_unlock(early_state.mutex);
} else if (ringback.fh) {