static switch_status_t channel_on_destroy(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
void *pop;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
if (tech_pvt) {
switch_core_timer_destroy(&tech_pvt->timer);
if (switch_core_codec_ready(&tech_pvt->read_codec)) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (switch_core_codec_ready(&tech_pvt->write_codec)) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
if (tech_pvt->write_frame) {
switch_frame_free(&tech_pvt->write_frame);
}
while (switch_queue_trypop(tech_pvt->frame_queue, &pop) == SWITCH_STATUS_SUCCESS && pop) {
switch_frame_t *frame = (switch_frame_t *) pop;
switch_frame_free(&frame);
}
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_core_codec_encode(switch_codec_t *codec,
switch_codec_t *other_codec,
void *decoded_data,
uint32_t decoded_data_len,
uint32_t decoded_rate,
void *encoded_data, uint32_t *encoded_data_len, uint32_t *encoded_rate, unsigned int *flag)
{
switch_status_t status;
switch_assert(codec != NULL);
switch_assert(encoded_data != NULL);
switch_assert(decoded_data != NULL);
if (!codec->implementation || !switch_core_codec_ready(codec)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec is not initialized!\n");
return SWITCH_STATUS_NOT_INITALIZED;
}
if (!switch_test_flag(codec, SWITCH_CODEC_FLAG_ENCODE)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec encoder is not initialized!\n");
return SWITCH_STATUS_NOT_INITALIZED;
}
if (codec->mutex) switch_mutex_lock(codec->mutex);
status = codec->implementation->encode(codec, other_codec, decoded_data, decoded_data_len,
decoded_rate, encoded_data, encoded_data_len, encoded_rate, flag);
if (codec->mutex) switch_mutex_unlock(codec->mutex);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_remove(switch_core_session_t *session, switch_media_bug_t **bug)
{
switch_media_bug_t *bp = NULL, *last = NULL;
switch_status_t status = SWITCH_STATUS_FALSE;
switch_thread_rwlock_wrlock(session->bug_rwlock);
if (session->bugs) {
for (bp = session->bugs; bp; bp = bp->next) {
if ((!bp->thread_id || bp->thread_id == switch_thread_self()) && bp->ready && bp == *bug) {
if (last) {
last->next = bp->next;
} else {
session->bugs = bp->next;
}
break;
}
last = bp;
}
}
if (!session->bugs && switch_core_codec_ready(&session->bug_codec)) {
switch_core_codec_destroy(&session->bug_codec);
}
switch_thread_rwlock_unlock(session->bug_rwlock);
if (bp) {
status = switch_core_media_bug_close(&bp);
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_remove_all_function(switch_core_session_t *session, const char *function)
{
switch_media_bug_t *bp;
switch_status_t status = SWITCH_STATUS_FALSE;
if (session->bugs) {
switch_thread_rwlock_wrlock(session->bug_rwlock);
for (bp = session->bugs; bp; bp = bp->next) {
if ((bp->thread_id && bp->thread_id != switch_thread_self()) || switch_test_flag(bp, SMBF_LOCK)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "BUG is thread locked skipping.\n");
continue;
}
if (!zstr(function) && strcmp(bp->function, function)) {
continue;
}
if (bp->callback) {
bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_CLOSE);
}
switch_core_media_bug_destroy(bp);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Removing BUG from %s\n", switch_channel_get_name(session->channel));
}
session->bugs = NULL;
switch_thread_rwlock_unlock(session->bug_rwlock);
status = SWITCH_STATUS_SUCCESS;
}
if (switch_core_codec_ready(&session->bug_codec)) {
switch_core_codec_destroy(&session->bug_codec);
}
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_session_set_video_write_codec(switch_core_session_t *session, switch_codec_t *codec)
{
switch_event_t *event;
switch_channel_t *channel = switch_core_session_get_channel(session);
char tmp[30];
switch_status_t status = SWITCH_STATUS_SUCCESS;
if (!codec || !codec->implementation || !switch_core_codec_ready(codec)) {
if (session->video_write_codec) {
session->video_write_codec = NULL;
status = SWITCH_STATUS_SUCCESS;
goto end;
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot set NULL codec!\n");
status = SWITCH_STATUS_FALSE;
goto end;
}
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(session->channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-video-write-codec-name", codec->implementation->iananame);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-video-write-codec-rate", "%d", codec->implementation->actual_samples_per_second);
switch_event_fire(&event);
}
switch_channel_set_variable(channel, "video_write_codec", codec->implementation->iananame);
switch_snprintf(tmp, sizeof(tmp), "%d", codec->implementation->actual_samples_per_second);
switch_channel_set_variable(channel, "video_write_rate", tmp);
session->video_write_codec = codec;
session->video_write_impl = *codec->implementation;
end:
return status;
}
void WSClientParser::DestroyChannel(WSChannel* wsChannel) {
switch_log_printf(
SWITCH_CHANNEL_UUID_LOG(this->GetUUID()),
SWITCH_LOG_INFO,
"WSClientParser::DestroyChannel( "
"this : %p, "
"wsChannel : %p "
") \n",
this,
mpChannel
);
if( wsChannel ) {
// Audio
if (switch_core_codec_ready(&wsChannel->read_codec)) {
switch_core_codec_destroy(&wsChannel->read_codec);
}
if (switch_core_codec_ready(&wsChannel->write_codec)) {
switch_core_codec_destroy(&wsChannel->write_codec);
}
// Video
if (switch_core_codec_ready(&wsChannel->video_read_codec)) {
switch_core_codec_destroy(&wsChannel->video_read_codec);
}
if (switch_core_codec_ready(&wsChannel->video_write_codec)) {
switch_core_codec_destroy(&wsChannel->video_write_codec);
}
if( wsChannel->video_readbuf_mutex ) {
switch_mutex_destroy(wsChannel->video_readbuf_mutex);
wsChannel->video_readbuf_mutex = NULL;
}
if( wsChannel->session ) {
switch_media_handle_destroy(wsChannel->session);
wsChannel->session = NULL;
}
if( wsChannel->video_readbuf ) {
switch_buffer_destroy(&wsChannel->video_readbuf);
wsChannel->video_readbuf = NULL;
}
}
}
static switch_status_t tech_init(private_t *tech_pvt, switch_core_session_t *session)
{
const char *iananame = "L16";
int rate = 8000;
int interval = 20;
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_channel_t *channel = switch_core_session_get_channel(session);
const switch_codec_implementation_t *read_impl;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s setup codec %s/%d/%d\n", switch_channel_get_name(channel), iananame, rate,
interval);
status = switch_core_codec_init(&tech_pvt->read_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS || !tech_pvt->read_codec.implementation || !switch_core_codec_ready(&tech_pvt->read_codec)) {
goto end;
}
status = switch_core_codec_init(&tech_pvt->write_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS) {
switch_core_codec_destroy(&tech_pvt->read_codec);
goto end;
}
tech_pvt->read_frame.data = tech_pvt->databuf;
tech_pvt->read_frame.buflen = sizeof(tech_pvt->databuf);
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
tech_pvt->read_frame.flags = SFF_NONE;
switch_core_session_set_read_codec(session, &tech_pvt->read_codec);
switch_core_session_set_write_codec(session, &tech_pvt->write_codec);
read_impl = tech_pvt->read_codec.implementation;
switch_core_timer_init(&tech_pvt->timer, "soft",
read_impl->microseconds_per_packet / 1000, read_impl->samples_per_packet, switch_core_session_get_pool(session));
switch_mutex_init(&tech_pvt->mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_core_session_set_private(session, tech_pvt);
tech_pvt->session = session;
tech_pvt->channel = switch_core_session_get_channel(session);
end:
return status;
}
static switch_status_t webm_file_close(switch_file_handle_t *handle)
{
webm_file_context_t *context = (webm_file_context_t *)handle->private_info;
context->segment->Finalize();
delete context->segment;
delete context->writer;
if (switch_core_codec_ready(&context->audio_codec)) switch_core_codec_destroy(&context->audio_codec);
if (switch_core_codec_ready(&context->video_codec)) switch_core_codec_destroy(&context->video_codec);
if (context->timer.interval) {
switch_core_timer_destroy(&context->timer);
}
switch_buffer_destroy(&context->buf);
switch_buffer_destroy(&context->audio_buffer);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t mp4_file_close(switch_file_handle_t *handle)
{
mp4_file_context_t *context = handle->private_info;
if (context->fd) {
MP4Close(context->fd, 0);
context->fd = NULL;
}
if (switch_core_codec_ready(&context->audio_codec)) switch_core_codec_destroy(&context->audio_codec);
if (switch_core_codec_ready(&context->video_codec)) switch_core_codec_destroy(&context->video_codec);
if (context->timer.interval) {
switch_core_timer_destroy(&context->timer);
}
switch_img_free(&context->last_img);
switch_buffer_destroy(&context->buf);
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_remove(switch_core_session_t *session, switch_media_bug_t **bug)
{
switch_media_bug_t *bp = NULL, *bp2 = NULL, *last = NULL;
switch_status_t status = SWITCH_STATUS_FALSE;
int tap_only = 0;
if (switch_core_media_bug_test_flag(*bug, SMBF_LOCK)) {
return status;
}
switch_thread_rwlock_wrlock(session->bug_rwlock);
if (session->bugs) {
for (bp = session->bugs; bp; bp = bp->next) {
if ((!bp->thread_id || bp->thread_id == switch_thread_self()) && bp->ready && bp == *bug) {
if (last) {
last->next = bp->next;
} else {
session->bugs = bp->next;
}
break;
}
last = bp;
}
}
if (!session->bugs && switch_core_codec_ready(&session->bug_codec)) {
switch_core_codec_destroy(&session->bug_codec);
}
if (session->bugs) {
for(bp2 = session->bugs; bp2; bp2 = bp2->next) {
if (bp2->ready && !switch_test_flag(bp2, SMBF_TAP_NATIVE_READ) && !switch_test_flag(bp2, SMBF_TAP_NATIVE_WRITE)) {
tap_only = 0;
}
}
}
if (tap_only) {
switch_set_flag(session, SSF_MEDIA_BUG_TAP_ONLY);
} else {
switch_clear_flag(session, SSF_MEDIA_BUG_TAP_ONLY);
}
switch_thread_rwlock_unlock(session->bug_rwlock);
if (bp) {
status = switch_core_media_bug_close(&bp);
}
return status;
}
static switch_status_t channel_on_destroy(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
if (tech_pvt) {
if (switch_core_codec_ready(&tech_pvt->read_codec)) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (switch_core_codec_ready(&tech_pvt->write_codec)) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t channel_on_destroy(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
loopback_private_t *tech_pvt = NULL;
switch_event_t *vars;
channel = switch_core_session_get_channel(session);
switch_assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
if ((vars = (switch_event_t *) switch_channel_get_private(channel, "__loopback_vars__"))) {
switch_channel_set_private(channel, "__loopback_vars__", NULL);
switch_event_destroy(&vars);
}
if (tech_pvt) {
switch_core_timer_destroy(&tech_pvt->timer);
if (switch_core_codec_ready(&tech_pvt->read_codec)) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (switch_core_codec_ready(&tech_pvt->write_codec)) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
if (tech_pvt->write_frame) {
switch_frame_free(&tech_pvt->write_frame);
}
clear_queue(tech_pvt);
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_core_codec_decode(switch_codec_t *codec,
switch_codec_t *other_codec,
void *encoded_data,
uint32_t encoded_data_len,
uint32_t encoded_rate,
void *decoded_data, uint32_t *decoded_data_len, uint32_t *decoded_rate, unsigned int *flag)
{
switch_status_t status;
switch_assert(codec != NULL);
switch_assert(encoded_data != NULL);
switch_assert(decoded_data != NULL);
if (!codec->implementation || !switch_core_codec_ready(codec)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec is not initialized!\n");
abort();
return SWITCH_STATUS_NOT_INITALIZED;
}
if (!switch_test_flag(codec, SWITCH_CODEC_FLAG_DECODE)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec decoder is not initialized!\n");
return SWITCH_STATUS_NOT_INITALIZED;
}
if (codec->implementation->encoded_bytes_per_packet) {
uint32_t frames = encoded_data_len / codec->implementation->encoded_bytes_per_packet;
if (frames && codec->implementation->decoded_bytes_per_packet * frames > *decoded_data_len) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Buffer size sanity check failed! edl:%u ebpp:%u fr:%u ddl:%u\n",
encoded_data_len, codec->implementation->encoded_bytes_per_packet, frames, *decoded_data_len);
*decoded_data_len = codec->implementation->decoded_bytes_per_packet;
memset(decoded_data, 255, *decoded_data_len);
return SWITCH_STATUS_SUCCESS;
}
}
if (codec->mutex) switch_mutex_lock(codec->mutex);
status = codec->implementation->decode(codec, other_codec, encoded_data, encoded_data_len, encoded_rate,
decoded_data, decoded_data_len, decoded_rate, flag);
if (codec->mutex) switch_mutex_unlock(codec->mutex);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_transfer_callback(switch_core_session_t *orig_session, switch_core_session_t *new_session,
switch_media_bug_callback_t callback, void * (*user_data_dup_func) (switch_core_session_t *, void *))
{
switch_media_bug_t *new_bug = NULL, *cur = NULL, *bp = NULL, *last = NULL;
int total = 0;
switch_thread_rwlock_wrlock(orig_session->bug_rwlock);
bp = orig_session->bugs;
while (bp) {
cur = bp;
bp = bp->next;
if (cur->callback == callback) {
if (last) {
last->next = cur->next;
} else {
orig_session->bugs = cur->next;
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(orig_session), SWITCH_LOG_DEBUG, "Transfering %s from %s to %s\n", cur->target,
switch_core_session_get_name(orig_session), switch_core_session_get_name(new_session));
switch_core_media_bug_add(new_session, cur->function, cur->target, cur->callback,
user_data_dup_func(new_session, cur->user_data),
cur->stop_time, cur->flags, &new_bug);
switch_core_media_bug_destroy(cur);
total++;
} else {
last = cur;
}
}
if (!orig_session->bugs && switch_core_codec_ready(&orig_session->bug_codec)) {
switch_core_codec_destroy(&orig_session->bug_codec);
}
switch_thread_rwlock_unlock(orig_session->bug_rwlock);
return total ? SWITCH_STATUS_SUCCESS : SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(uint32_t) switch_core_media_bug_prune(switch_core_session_t *session)
{
switch_media_bug_t *bp = NULL, *last = NULL;
int ttl = 0;
top:
switch_thread_rwlock_wrlock(session->bug_rwlock);
if (session->bugs) {
for (bp = session->bugs; bp; bp = bp->next) {
if (switch_core_media_bug_test_flag(bp, SMBF_PRUNE)) {
if (last) {
last->next = bp->next;
} else {
session->bugs = bp->next;
}
break;
}
last = bp;
}
}
if (!session->bugs && switch_core_codec_ready(&session->bug_codec)) {
switch_core_codec_destroy(&session->bug_codec);
}
switch_thread_rwlock_unlock(session->bug_rwlock);
if (bp) {
switch_clear_flag(bp, SMBF_LOCK);
bp->thread_id = 0;
switch_core_media_bug_close(&bp);
ttl++;
goto top;
}
return ttl;
}
SWITCH_DECLARE(switch_status_t) switch_core_codec_destroy(switch_codec_t *codec)
{
switch_mutex_t *mutex;
switch_memory_pool_t *pool;
int free_pool = 0;
switch_assert(codec != NULL);
if (!codec->implementation || !switch_core_codec_ready(codec)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Codec is not initialized!\n");
return SWITCH_STATUS_NOT_INITALIZED;
}
if (switch_test_flag(codec, SWITCH_CODEC_FLAG_FREE_POOL)) {
free_pool = 1;
}
pool = codec->memory_pool;
mutex = codec->mutex;
if (mutex)
switch_mutex_lock(mutex);
codec->implementation->destroy(codec);
switch_clear_flag(codec, SWITCH_CODEC_FLAG_READY);
UNPROTECT_INTERFACE(codec->codec_interface);
if (mutex)
switch_mutex_unlock(mutex);
if (free_pool) {
switch_core_destroy_memory_pool(&pool);
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_status_t) switch_core_media_bug_remove_callback(switch_core_session_t *session, switch_media_bug_callback_t callback)
{
switch_media_bug_t *cur = NULL, *bp = NULL, *last = NULL;
int total = 0;
switch_thread_rwlock_wrlock(session->bug_rwlock);
if (session->bugs) {
bp = session->bugs;
while (bp) {
cur = bp;
bp = bp->next;
if ((!cur->thread_id || cur->thread_id == switch_thread_self()) && cur->ready && cur->callback == callback) {
if (last) {
last->next = cur->next;
} else {
session->bugs = cur->next;
}
if (switch_core_media_bug_close(&cur) == SWITCH_STATUS_SUCCESS) {
total++;
}
} else {
last = cur;
}
}
}
if (!session->bugs && switch_core_codec_ready(&session->bug_codec)) {
switch_core_codec_destroy(&session->bug_codec);
}
switch_thread_rwlock_unlock(session->bug_rwlock);
return total ? SWITCH_STATUS_SUCCESS : SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(switch_status_t) switch_core_session_read_frame(switch_core_session_t *session, switch_frame_t **frame, switch_io_flag_t flags,
int stream_id)
{
switch_io_event_hook_read_frame_t *ptr;
switch_status_t status = SWITCH_STATUS_FALSE;
int need_codec, perfect, do_bugs = 0, do_resample = 0, is_cng = 0;
switch_codec_implementation_t codec_impl;
unsigned int flag = 0;
switch_assert(session != NULL);
if (switch_mutex_trylock(session->codec_read_mutex) == SWITCH_STATUS_SUCCESS) {
switch_mutex_unlock(session->codec_read_mutex);
} else {
switch_cond_next();
*frame = &runtime.dummy_cng_frame;
return SWITCH_STATUS_SUCCESS;
}
if (!(session->read_codec && session->read_codec->implementation && switch_core_codec_ready(session->read_codec))) {
if (switch_channel_test_flag(session->channel, CF_PROXY_MODE) || switch_channel_get_state(session->channel) == CS_HIBERNATE) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "%s reading on a session with no media!\n",
switch_channel_get_name(session->channel));
switch_cond_next();
*frame = &runtime.dummy_cng_frame;
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;
}
switch_mutex_lock(session->codec_read_mutex);
if (!switch_core_codec_ready(session->read_codec)) {
switch_mutex_unlock(session->codec_read_mutex);
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);
*frame = &runtime.dummy_cng_frame;
return SWITCH_STATUS_FALSE;
}
switch_mutex_lock(session->read_codec->mutex);
top:
if (session->dmachine && !switch_channel_test_flag(session->channel, CF_BROADCAST)) {
switch_ivr_dmachine_ping(session->dmachine, NULL);
}
if (switch_channel_down(session->channel) || !switch_core_codec_ready(session->read_codec)) {
*frame = NULL;
status = SWITCH_STATUS_FALSE;
goto even_more_done;
}
status = SWITCH_STATUS_FALSE;
need_codec = perfect = 0;
*frame = NULL;
if (session->read_codec && !session->track_id && session->track_duration) {
if (session->read_frame_count == 0) {
switch_event_t *event;
session->read_frame_count = (session->read_impl.actual_samples_per_second / session->read_impl.samples_per_packet) * session->track_duration;
switch_event_create(&event, SWITCH_EVENT_SESSION_HEARTBEAT);
switch_channel_event_set_data(session->channel, event);
switch_event_fire(&event);
} else {
session->read_frame_count--;
}
}
if (switch_channel_test_flag(session->channel, CF_HOLD)) {
switch_yield(session->read_impl.microseconds_per_packet);
status = SWITCH_STATUS_BREAK;
goto even_more_done;
}
if (session->endpoint_interface->io_routines->read_frame) {
switch_mutex_unlock(session->read_codec->mutex);
switch_mutex_unlock(session->codec_read_mutex);
if ((status = session->endpoint_interface->io_routines->read_frame(session, frame, flags, stream_id)) == SWITCH_STATUS_SUCCESS) {
for (ptr = session->event_hooks.read_frame; ptr; ptr = ptr->next) {
if ((status = ptr->read_frame(session, frame, flags, stream_id)) != SWITCH_STATUS_SUCCESS) {
break;
}
}
}
if (!SWITCH_READ_ACCEPTABLE(status) || !session->read_codec || !switch_core_codec_ready(session->read_codec)) {
*frame = NULL;
return SWITCH_STATUS_FALSE;
}
switch_mutex_lock(session->codec_read_mutex);
if (!switch_core_codec_ready(session->read_codec)) {
switch_mutex_unlock(session->codec_read_mutex);
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);
*frame = &runtime.dummy_cng_frame;
return SWITCH_STATUS_FALSE;
}
switch_mutex_lock(session->read_codec->mutex);
if (!switch_core_codec_ready(session->read_codec)) {
*frame = NULL;
status = SWITCH_STATUS_FALSE;
goto even_more_done;
}
}
if (status != SWITCH_STATUS_SUCCESS) {
goto done;
}
if (!(*frame)) {
goto done;
}
switch_assert(*frame != NULL);
if (switch_test_flag(*frame, SFF_PROXY_PACKET)) {
/* Fast PASS! */
status = SWITCH_STATUS_SUCCESS;
goto done;
}
if (switch_test_flag(*frame, SFF_CNG)) {
status = SWITCH_STATUS_SUCCESS;
if (!session->bugs && !session->plc) {
goto done;
}
is_cng = 1;
}
switch_assert((*frame)->codec != NULL);
if (!(session->read_codec && (*frame)->codec && (*frame)->codec->implementation) && switch_core_codec_ready((*frame)->codec)) {
status = SWITCH_STATUS_FALSE;
goto done;
}
codec_impl = *(*frame)->codec->implementation;
if (session->read_codec->implementation->impl_id != codec_impl.impl_id) {
need_codec = TRUE;
}
if (codec_impl.actual_samples_per_second != session->read_impl.actual_samples_per_second) {
do_resample = 1;
}
if (session->bugs && !need_codec) {
do_bugs = 1;
need_codec = 1;
}
if (switch_test_flag(session, SSF_READ_TRANSCODE) && !need_codec && switch_core_codec_ready(session->read_codec)) {
switch_core_session_t *other_session;
const char *uuid = switch_channel_get_variable(switch_core_session_get_channel(session), SWITCH_SIGNAL_BOND_VARIABLE);
switch_clear_flag(session, SSF_READ_TRANSCODE);
if (uuid && (other_session = switch_core_session_locate(uuid))) {
switch_set_flag(other_session, SSF_READ_CODEC_RESET);
switch_set_flag(other_session, SSF_READ_CODEC_RESET);
switch_set_flag(other_session, SSF_WRITE_CODEC_RESET);
switch_core_session_rwunlock(other_session);
}
}
if (switch_test_flag(session, SSF_READ_CODEC_RESET)) {
switch_core_codec_reset(session->read_codec);
switch_clear_flag(session, SSF_READ_CODEC_RESET);
}
if (status == SWITCH_STATUS_SUCCESS && need_codec) {
switch_frame_t *enc_frame, *read_frame = *frame;
switch_set_flag(session, SSF_READ_TRANSCODE);
if (!switch_test_flag(session, SSF_WARN_TRANSCODE)) {
switch_core_session_message_t msg = { 0 };
msg.message_id = SWITCH_MESSAGE_INDICATE_TRANSCODING_NECESSARY;
switch_core_session_receive_message(session, &msg);
switch_set_flag(session, SSF_WARN_TRANSCODE);
}
if (read_frame->codec || is_cng) {
session->raw_read_frame.datalen = session->raw_read_frame.buflen;
if (is_cng) {
if (session->plc) {
plc_fillin(session->plc, session->raw_read_frame.data, read_frame->codec->implementation->decoded_bytes_per_packet / 2);
is_cng = 0;
flag &= !SFF_CNG;
} else {
memset(session->raw_read_frame.data, 255, read_frame->codec->implementation->decoded_bytes_per_packet);
}
session->raw_read_frame.timestamp = 0;
session->raw_read_frame.datalen = read_frame->codec->implementation->decoded_bytes_per_packet;
session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t);
read_frame = &session->raw_read_frame;
status = SWITCH_STATUS_SUCCESS;
} else {
switch_codec_t *use_codec = read_frame->codec;
if (do_bugs) {
switch_thread_rwlock_wrlock(session->bug_rwlock);
if (!session->bugs) {
do_bugs = 0;
switch_thread_rwlock_unlock(session->bug_rwlock);
goto done;
}
if (!switch_core_codec_ready(&session->bug_codec)) {
switch_core_codec_copy(read_frame->codec, &session->bug_codec, NULL);
}
use_codec = &session->bug_codec;
switch_thread_rwlock_unlock(session->bug_rwlock);
switch_thread_rwlock_wrlock(session->bug_rwlock);
if (!session->bugs) {
do_bugs = 0;
}
switch_thread_rwlock_unlock(session->bug_rwlock);
if (!do_bugs) goto done;
}
if (switch_test_flag(read_frame, SFF_PLC)) {
session->raw_read_frame.datalen = read_frame->codec->implementation->decoded_bytes_per_packet;
session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t);
memset(session->raw_read_frame.data, 255, session->raw_read_frame.datalen);
status = SWITCH_STATUS_SUCCESS;
} else {
status = switch_core_codec_decode(use_codec,
session->read_codec,
read_frame->data,
read_frame->datalen,
session->read_impl.actual_samples_per_second,
session->raw_read_frame.data, &session->raw_read_frame.datalen, &session->raw_read_frame.rate,
&read_frame->flags);
}
if (status == SWITCH_STATUS_SUCCESS) {
if ((switch_channel_test_flag(session->channel, CF_JITTERBUFFER) || switch_channel_test_flag(session->channel, CF_CNG_PLC))
&& !session->plc) {
session->plc = plc_init(NULL);
}
if (session->plc) {
if (switch_test_flag(read_frame, SFF_PLC)) {
plc_fillin(session->plc, session->raw_read_frame.data, session->raw_read_frame.datalen / 2);
switch_clear_flag(read_frame, SFF_PLC);
} else {
plc_rx(session->plc, session->raw_read_frame.data, session->raw_read_frame.datalen / 2);
}
}
}
}
if (do_resample && ((status == SWITCH_STATUS_SUCCESS) || is_cng)) {
status = SWITCH_STATUS_RESAMPLE;
}
switch (status) {
case SWITCH_STATUS_RESAMPLE:
if (!session->read_resampler) {
switch_mutex_lock(session->resample_mutex);
status = switch_resample_create(&session->read_resampler,
read_frame->codec->implementation->actual_samples_per_second,
session->read_impl.actual_samples_per_second,
session->read_impl.decoded_bytes_per_packet, SWITCH_RESAMPLE_QUALITY, 1);
switch_mutex_unlock(session->resample_mutex);
if (status != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Unable to allocate resampler\n");
status = SWITCH_STATUS_FALSE;
goto done;
}
}
case SWITCH_STATUS_SUCCESS:
session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t);
session->raw_read_frame.rate = read_frame->rate;
if (read_frame->codec->implementation->samples_per_packet != session->read_impl.samples_per_packet) {
session->raw_read_frame.timestamp = 0;
} else {
session->raw_read_frame.timestamp = read_frame->timestamp;
}
session->raw_read_frame.ssrc = read_frame->ssrc;
session->raw_read_frame.seq = read_frame->seq;
session->raw_read_frame.m = read_frame->m;
session->raw_read_frame.payload = read_frame->payload;
session->raw_read_frame.flags = 0;
if (switch_test_flag(read_frame, SFF_PLC)) {
session->raw_read_frame.flags |= SFF_PLC;
}
read_frame = &session->raw_read_frame;
break;
case SWITCH_STATUS_NOOP:
if (session->read_resampler) {
switch_mutex_lock(session->resample_mutex);
switch_resample_destroy(&session->read_resampler);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "Deactivating read resampler\n");
switch_mutex_unlock(session->resample_mutex);
}
status = SWITCH_STATUS_SUCCESS;
break;
case SWITCH_STATUS_BREAK:
memset(session->raw_read_frame.data, 255, read_frame->codec->implementation->decoded_bytes_per_packet);
session->raw_read_frame.datalen = read_frame->codec->implementation->decoded_bytes_per_packet;
session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t);
session->raw_read_frame.timestamp = read_frame->timestamp;
session->raw_read_frame.rate = read_frame->rate;
session->raw_read_frame.ssrc = read_frame->ssrc;
session->raw_read_frame.seq = read_frame->seq;
session->raw_read_frame.m = read_frame->m;
session->raw_read_frame.payload = read_frame->payload;
session->raw_read_frame.flags = 0;
if (switch_test_flag(read_frame, SFF_PLC)) {
session->raw_read_frame.flags |= SFF_PLC;
}
read_frame = &session->raw_read_frame;
status = SWITCH_STATUS_SUCCESS;
break;
case SWITCH_STATUS_NOT_INITALIZED:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n");
goto done;
default:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s decoder error!\n",
session->read_codec->codec_interface->interface_name);
goto done;
}
}
if (session->bugs) {
switch_media_bug_t *bp;
switch_bool_t ok = SWITCH_TRUE;
int prune = 0;
switch_thread_rwlock_rdlock(session->bug_rwlock);
for (bp = session->bugs; bp; bp = bp->next) {
if (switch_channel_test_flag(session->channel, CF_PAUSE_BUGS) && !switch_core_media_bug_test_flag(bp, SMBF_NO_PAUSE)) {
continue;
}
if (!switch_channel_test_flag(session->channel, CF_ANSWERED) && switch_core_media_bug_test_flag(bp, SMBF_ANSWER_REQ)) {
continue;
}
if (switch_test_flag(bp, SMBF_PRUNE)) {
prune++;
continue;
}
if (bp->ready && switch_test_flag(bp, SMBF_READ_STREAM)) {
switch_mutex_lock(bp->read_mutex);
switch_buffer_write(bp->raw_read_buffer, read_frame->data, read_frame->datalen);
if (bp->callback) {
ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_READ);
}
switch_mutex_unlock(bp->read_mutex);
}
if (ok && switch_test_flag(bp, SMBF_READ_REPLACE)) {
do_bugs = 0;
if (bp->callback) {
bp->read_replace_frame_in = read_frame;
bp->read_replace_frame_out = read_frame;
if ((ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_READ_REPLACE)) == SWITCH_TRUE) {
read_frame = bp->read_replace_frame_out;
}
}
}
if ((bp->stop_time && bp->stop_time <= switch_epoch_time_now(NULL)) || ok == SWITCH_FALSE) {
switch_set_flag(bp, SMBF_PRUNE);
prune++;
}
}
switch_thread_rwlock_unlock(session->bug_rwlock);
if (prune) {
switch_core_media_bug_prune(session);
}
}
if (do_bugs) {
goto done;
}
if (session->read_codec) {
if (session->read_resampler) {
short *data = read_frame->data;
switch_mutex_lock(session->resample_mutex);
switch_resample_process(session->read_resampler, data, (int) read_frame->datalen / 2);
memcpy(data, session->read_resampler->to, session->read_resampler->to_len * 2);
read_frame->samples = session->read_resampler->to_len;
read_frame->datalen = session->read_resampler->to_len * 2;
read_frame->rate = session->read_resampler->to_rate;
switch_mutex_unlock(session->resample_mutex);
}
if (read_frame->datalen == session->read_impl.decoded_bytes_per_packet) {
perfect = TRUE;
} else {
if (!session->raw_read_buffer) {
switch_size_t bytes = session->read_impl.decoded_bytes_per_packet;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Engaging Read Buffer at %u bytes vs %u\n",
(uint32_t) bytes, (uint32_t) (*frame)->datalen);
switch_buffer_create_dynamic(&session->raw_read_buffer, bytes * SWITCH_BUFFER_BLOCK_FRAMES, bytes * SWITCH_BUFFER_START_FRAMES, 0);
}
if (!switch_buffer_write(session->raw_read_buffer, read_frame->data, read_frame->datalen)) {
status = SWITCH_STATUS_MEMERR;
goto done;
}
}
if (perfect || switch_buffer_inuse(session->raw_read_buffer) >= session->read_impl.decoded_bytes_per_packet) {
if (perfect) {
enc_frame = read_frame;
session->raw_read_frame.rate = read_frame->rate;
} else {
session->raw_read_frame.datalen = (uint32_t) switch_buffer_read(session->raw_read_buffer,
session->raw_read_frame.data,
session->read_impl.decoded_bytes_per_packet);
session->raw_read_frame.rate = session->read_impl.actual_samples_per_second;
enc_frame = &session->raw_read_frame;
}
session->enc_read_frame.datalen = session->enc_read_frame.buflen;
switch_assert(session->read_codec != NULL);
switch_assert(enc_frame != NULL);
switch_assert(enc_frame->data != NULL);
status = switch_core_codec_encode(session->read_codec,
enc_frame->codec,
enc_frame->data,
enc_frame->datalen,
session->read_impl.actual_samples_per_second,
session->enc_read_frame.data, &session->enc_read_frame.datalen, &session->enc_read_frame.rate, &flag);
switch (status) {
case SWITCH_STATUS_RESAMPLE:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Fixme 1\n");
case SWITCH_STATUS_SUCCESS:
session->enc_read_frame.samples = session->read_impl.decoded_bytes_per_packet / sizeof(int16_t);
if (perfect) {
if (enc_frame->codec->implementation->samples_per_packet != session->read_impl.samples_per_packet) {
session->enc_read_frame.timestamp = 0;
} else {
session->enc_read_frame.timestamp = read_frame->timestamp;
}
session->enc_read_frame.rate = read_frame->rate;
session->enc_read_frame.ssrc = read_frame->ssrc;
session->enc_read_frame.seq = read_frame->seq;
session->enc_read_frame.m = read_frame->m;
session->enc_read_frame.payload = session->read_impl.ianacode;
}
*frame = &session->enc_read_frame;
break;
case SWITCH_STATUS_NOOP:
session->raw_read_frame.samples = enc_frame->codec->implementation->samples_per_packet;
session->raw_read_frame.timestamp = read_frame->timestamp;
session->raw_read_frame.payload = enc_frame->codec->implementation->ianacode;
session->raw_read_frame.m = read_frame->m;
session->raw_read_frame.ssrc = read_frame->ssrc;
session->raw_read_frame.seq = read_frame->seq;
*frame = enc_frame;
status = SWITCH_STATUS_SUCCESS;
break;
case SWITCH_STATUS_NOT_INITALIZED:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n");
*frame = NULL;
status = SWITCH_STATUS_GENERR;
break;
default:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s encoder error!\n",
session->read_codec->codec_interface->interface_name);
*frame = NULL;
status = SWITCH_STATUS_GENERR;
break;
}
} else {
goto top;
}
}
}
done:
if (!(*frame)) {
status = SWITCH_STATUS_FALSE;
} else {
if (flag & SFF_CNG) {
switch_set_flag((*frame), SFF_CNG);
}
if (session->bugs) {
switch_media_bug_t *bp;
switch_bool_t ok = SWITCH_TRUE;
int prune = 0;
switch_thread_rwlock_rdlock(session->bug_rwlock);
for (bp = session->bugs; bp; bp = bp->next) {
if (switch_channel_test_flag(session->channel, CF_PAUSE_BUGS) && !switch_core_media_bug_test_flag(bp, SMBF_NO_PAUSE)) {
continue;
}
if (!switch_channel_test_flag(session->channel, CF_ANSWERED) && switch_core_media_bug_test_flag(bp, SMBF_ANSWER_REQ)) {
continue;
}
if (switch_test_flag(bp, SMBF_PRUNE)) {
prune++;
continue;
}
if (bp->ready && switch_test_flag(bp, SMBF_READ_PING)) {
switch_mutex_lock(bp->read_mutex);
if (bp->callback) {
if (bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_READ_PING) == SWITCH_FALSE
|| (bp->stop_time && bp->stop_time <= switch_epoch_time_now(NULL))) {
ok = SWITCH_FALSE;
}
}
switch_mutex_unlock(bp->read_mutex);
}
if (ok == SWITCH_FALSE) {
switch_set_flag(bp, SMBF_PRUNE);
prune++;
}
}
switch_thread_rwlock_unlock(session->bug_rwlock);
if (prune) {
switch_core_media_bug_prune(session);
}
}
}
even_more_done:
if (!*frame || !(*frame)->codec || !(*frame)->codec->implementation || !switch_core_codec_ready((*frame)->codec)) {
*frame = &runtime.dummy_cng_frame;
}
switch_mutex_unlock(session->read_codec->mutex);
switch_mutex_unlock(session->codec_read_mutex);
return status;
}
static void *SWITCH_THREAD_FUNC read_stream_thread(switch_thread_t *thread, void *obj)
{
portaudio_stream_source_t *source = obj;
portaudio_stream_context_t *cp;
int samples = 0;
int bused, bytesToWrite;
switch_mutex_lock(globals.mutex);
globals.threads++;
switch_mutex_unlock(globals.mutex);
if (!source->prebuf) {
source->prebuf = DEFAULT_PREBUFFER_SIZE;
}
switch_mutex_lock(globals.mutex);
switch_core_hash_insert(globals.source_hash, source->sourcename, source);
switch_mutex_unlock(globals.mutex);
switch_thread_rwlock_create(&source->rwlock, source->pool);
if (engage_device(source, 0) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, " Dev %d cant be engaged !\n", (int) source->sourcedev);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, " Dev %d engaged at %d rate!\n", (int) source->sourcedev, (int) source->rate);
if (globals.running && !source->stopped) {
source->ready = 1;
if (!source->audio_stream) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "No Audio Stream wops!\n");
source->stopped = 0;
source->ready = 0;
} else {
while (globals.running && !source->stopped) {
samples = 0;
switch_mutex_lock(source->device_lock);
samples = ReadAudioStream(source->audio_stream, source->databuf,
source->read_codec.implementation->samples_per_packet, 0, &source->timer);
switch_mutex_unlock(source->device_lock);
if (samples) {
bytesToWrite = source->samples;
if (samples < bytesToWrite) {
bytesToWrite = samples;
}
bytesToWrite *= source->audio_stream->bytesPerFrame;
if (source->total) {
switch_mutex_lock(source->mutex);
for (cp = source->context_list; cp; cp = cp->next) {
switch_mutex_lock(cp->audio_mutex);
bused = switch_buffer_inuse(cp->audio_buffer);
if (bused > source->samples * 768) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Leaking stream handle! [%s() %s:%d] %d used %d max\n",
cp->func, cp->file, cp->line, (int) bused, (int) (source->samples * 768));
switch_buffer_zero(cp->audio_buffer);
} else {
switch_buffer_write(cp->audio_buffer, source->databuf, bytesToWrite);
}
switch_mutex_unlock(cp->audio_mutex);
}
switch_mutex_unlock(source->mutex);
}
}
}
}
}
}
source->ready = 0;
switch_mutex_lock(globals.mutex);
switch_core_hash_delete(globals.source_hash, source->sourcename);
switch_mutex_unlock(globals.mutex);
switch_thread_rwlock_wrlock(source->rwlock);
switch_thread_rwlock_unlock(source->rwlock);
switch_mutex_lock(source->device_lock);
CloseAudioStream(source->audio_stream);
if (switch_core_codec_ready(&source->read_codec)) {
switch_core_codec_destroy(&source->read_codec);
switch_core_codec_destroy(&source->write_codec);
}
if (switch_core_codec_ready(&source->write_codec)) {
switch_core_codec_destroy(&source->write_codec);
}
switch_mutex_unlock(source->device_lock);
switch_core_destroy_memory_pool(&source->pool);
switch_mutex_lock(globals.mutex);
globals.threads--;
switch_mutex_unlock(globals.mutex);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, " thread ending succesfully !\n");
switch_thread_exit(thread, SWITCH_STATUS_SUCCESS);
return NULL;
}
static switch_status_t engage_device(portaudio_stream_source_t *source, int restart)
{
PaStreamParameters inputParameters, outputParameters;
PaError err;
int sample_rate = source->rate;
int codec_ms = source->interval;
switch_mutex_init(&source->device_lock, SWITCH_MUTEX_NESTED, module_pool);
if (source->timer.timer_interface) {
switch_core_timer_sync(&source->timer);
}
if (source->audio_stream) {
return SWITCH_STATUS_SUCCESS;
}
if (!switch_core_codec_ready(&source->read_codec)) {
if (switch_core_codec_init(&source->read_codec,
"L16",
NULL, sample_rate, codec_ms, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL,
NULL) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
return SWITCH_STATUS_FALSE;
}
}
switch_assert(source->read_codec.implementation);
if (!switch_core_codec_ready(&source->write_codec)) {
if (switch_core_codec_init(&source->write_codec,
"L16",
NULL,
sample_rate, codec_ms, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, NULL) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
switch_core_codec_destroy(&source->read_codec);
return SWITCH_STATUS_FALSE;
}
}
if (!source->timer.timer_interface) {
if (switch_core_timer_init(&source->timer,
source->timer_name, codec_ms, source->read_codec.implementation->samples_per_packet,
module_pool) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "setup timer failed!\n");
switch_core_codec_destroy(&source->read_codec);
switch_core_codec_destroy(&source->write_codec);
return SWITCH_STATUS_FALSE;
}
}
source->read_frame.rate = sample_rate;
source->read_frame.codec = &source->read_codec;
switch_mutex_lock(source->device_lock);
/* LOCKED ************************************************************************************************** */
inputParameters.device = source->sourcedev;
inputParameters.channelCount = 1;
inputParameters.sampleFormat = SAMPLE_TYPE;
inputParameters.suggestedLatency = Pa_GetDeviceInfo(inputParameters.device)->defaultLowInputLatency;
inputParameters.hostApiSpecificStreamInfo = NULL;
outputParameters.device = source->sourcedev;
outputParameters.channelCount = 1;
outputParameters.sampleFormat = SAMPLE_TYPE;
outputParameters.suggestedLatency = Pa_GetDeviceInfo(outputParameters.device)->defaultLowOutputLatency;
outputParameters.hostApiSpecificStreamInfo = NULL;
err = OpenAudioStream(&source->audio_stream, &inputParameters, NULL, sample_rate, paClipOff, source->read_codec.implementation->samples_per_packet, 0);
/* UNLOCKED ************************************************************************************************* */
if (err != paNoError) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening audio device retrying\n");
switch_yield(1000000);
err = OpenAudioStream(&source->audio_stream, &inputParameters, &outputParameters, sample_rate, paClipOff,
source->read_codec.implementation->samples_per_packet, 0);
}
switch_mutex_unlock(source->device_lock);
if (err != paNoError) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't open audio device\n");
switch_core_codec_destroy(&source->read_codec);
switch_core_timer_destroy(&source->timer);
return SWITCH_STATUS_FALSE;
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t tech_init(private_t *tech_pvt, switch_core_session_t *session, switch_codec_t *codec)
{
const char *iananame = "L16";
int rate = 8000;
int interval = 20;
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_channel_t *channel = switch_core_session_get_channel(session);
const switch_codec_implementation_t *read_impl;
if (codec) {
iananame = codec->implementation->iananame;
rate = codec->implementation->samples_per_second;
interval = codec->implementation->microseconds_per_packet / 1000;
}
if (switch_core_codec_ready(&tech_pvt->read_codec)) {
switch_core_codec_destroy(&tech_pvt->read_codec);
}
if (switch_core_codec_ready(&tech_pvt->write_codec)) {
switch_core_codec_destroy(&tech_pvt->write_codec);
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s setup codec %s/%d/%d\n", switch_channel_get_name(channel), iananame, rate,
interval);
status = switch_core_codec_init(&tech_pvt->read_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS || !tech_pvt->read_codec.implementation || !switch_core_codec_ready(&tech_pvt->read_codec)) {
goto end;
}
status = switch_core_codec_init(&tech_pvt->write_codec,
iananame,
NULL,
rate, interval, 1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE, NULL, switch_core_session_get_pool(session));
if (status != SWITCH_STATUS_SUCCESS) {
switch_core_codec_destroy(&tech_pvt->read_codec);
goto end;
}
tech_pvt->read_frame.data = tech_pvt->databuf;
tech_pvt->read_frame.buflen = sizeof(tech_pvt->databuf);
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
tech_pvt->cng_frame.data = tech_pvt->cng_databuf;
tech_pvt->cng_frame.buflen = sizeof(tech_pvt->cng_databuf);
//switch_set_flag((&tech_pvt->cng_frame), SFF_CNG);
tech_pvt->cng_frame.datalen = 2;
tech_pvt->bowout_frame_count = (tech_pvt->read_codec.implementation->actual_samples_per_second /
tech_pvt->read_codec.implementation->samples_per_packet) * 3;
switch_core_session_set_read_codec(session, &tech_pvt->read_codec);
switch_core_session_set_write_codec(session, &tech_pvt->write_codec);
if (tech_pvt->flag_mutex) {
switch_core_timer_destroy(&tech_pvt->timer);
}
read_impl = tech_pvt->read_codec.implementation;
switch_core_timer_init(&tech_pvt->timer, "soft",
read_impl->microseconds_per_packet / 1000, read_impl->samples_per_packet * 4, switch_core_session_get_pool(session));
if (!tech_pvt->flag_mutex) {
switch_mutex_init(&tech_pvt->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_mutex_init(&tech_pvt->mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_core_session_set_private(session, tech_pvt);
switch_queue_create(&tech_pvt->frame_queue, FRAME_QUEUE_LEN, switch_core_session_get_pool(session));
tech_pvt->session = session;
tech_pvt->channel = switch_core_session_get_channel(session);
}
end:
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags,
int stream_id)
{
switch_status_t status = SWITCH_STATUS_FALSE;
switch_frame_t *enc_frame = NULL, *write_frame = frame;
unsigned int flag = 0, need_codec = 0, perfect = 0, do_bugs = 0, do_write = 0, do_resample = 0, ptime_mismatch = 0, pass_cng = 0, resample = 0;
int did_write_resample = 0;
switch_assert(session != NULL);
switch_assert(frame != NULL);
if (!switch_channel_ready(session->channel)) {
return SWITCH_STATUS_FALSE;
}
if (switch_mutex_trylock(session->codec_write_mutex) == SWITCH_STATUS_SUCCESS) {
switch_mutex_unlock(session->codec_write_mutex);
} else {
return SWITCH_STATUS_SUCCESS;
}
if (switch_test_flag(frame, SFF_CNG)) {
if (switch_channel_test_flag(session->channel, CF_ACCEPT_CNG)) {
pass_cng = 1;
} else {
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);
return SWITCH_STATUS_FALSE;
}
if (switch_channel_test_flag(session->channel, CF_HOLD)) {
return SWITCH_STATUS_SUCCESS;
}
if (switch_test_flag(frame, SFF_PROXY_PACKET) || pass_cng) {
/* Fast PASS! */
switch_mutex_lock(session->codec_write_mutex);
status = perform_write(session, frame, flag, stream_id);
switch_mutex_unlock(session->codec_write_mutex);
return status;
}
switch_mutex_lock(session->codec_write_mutex);
if (!(frame->codec && frame->codec->implementation)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "%s has received a bad frame with no codec!\n",
switch_channel_get_name(session->channel));
switch_channel_hangup(session->channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
switch_mutex_unlock(session->codec_write_mutex);
return SWITCH_STATUS_FALSE;
}
switch_assert(frame->codec != NULL);
switch_assert(frame->codec->implementation != NULL);
if (!(switch_core_codec_ready(session->write_codec) && frame->codec) ||
!switch_channel_ready(session->channel) || !switch_channel_media_ready(session->channel)) {
switch_mutex_unlock(session->codec_write_mutex);
return SWITCH_STATUS_FALSE;
}
switch_mutex_lock(session->write_codec->mutex);
switch_mutex_lock(frame->codec->mutex);
if (!(switch_core_codec_ready(session->write_codec) && switch_core_codec_ready(frame->codec))) goto error;
if ((session->write_codec && frame->codec && session->write_codec->implementation != frame->codec->implementation)) {
if (session->write_impl.codec_id == frame->codec->implementation->codec_id ||
session->write_impl.microseconds_per_packet != frame->codec->implementation->microseconds_per_packet) {
ptime_mismatch = TRUE;
if ((switch_test_flag(frame->codec, SWITCH_CODEC_FLAG_PASSTHROUGH) || switch_test_flag(session->read_codec, SWITCH_CODEC_FLAG_PASSTHROUGH)) ||
switch_channel_test_flag(session->channel, CF_PASSTHRU_PTIME_MISMATCH)) {
status = perform_write(session, frame, flags, stream_id);
goto error;
}
}
need_codec = TRUE;
}
if (session->write_codec && !frame->codec) {
need_codec = TRUE;
}
if (session->bugs && !need_codec) {
do_bugs = TRUE;
need_codec = TRUE;
}
if (frame->codec->implementation->actual_samples_per_second != session->write_impl.actual_samples_per_second) {
need_codec = TRUE;
do_resample = TRUE;
}
if (switch_test_flag(session, SSF_WRITE_TRANSCODE) && !need_codec && switch_core_codec_ready(session->write_codec)) {
switch_core_session_t *other_session;
const char *uuid = switch_channel_get_variable(switch_core_session_get_channel(session), SWITCH_SIGNAL_BOND_VARIABLE);
if (uuid && (other_session = switch_core_session_locate(uuid))) {
switch_set_flag(other_session, SSF_READ_CODEC_RESET);
switch_set_flag(other_session, SSF_READ_CODEC_RESET);
switch_set_flag(other_session, SSF_WRITE_CODEC_RESET);
switch_core_session_rwunlock(other_session);
}
switch_clear_flag(session, SSF_WRITE_TRANSCODE);
}
if (switch_test_flag(session, SSF_WRITE_CODEC_RESET)) {
switch_core_codec_reset(session->write_codec);
switch_clear_flag(session, SSF_WRITE_CODEC_RESET);
}
if (!need_codec) {
do_write = TRUE;
write_frame = frame;
goto done;
}
if (!switch_test_flag(session, SSF_WARN_TRANSCODE)) {
switch_core_session_message_t msg = { 0 };
msg.message_id = SWITCH_MESSAGE_INDICATE_TRANSCODING_NECESSARY;
switch_core_session_receive_message(session, &msg);
switch_set_flag(session, SSF_WARN_TRANSCODE);
}
if (frame->codec) {
session->raw_write_frame.datalen = session->raw_write_frame.buflen;
status = switch_core_codec_decode(frame->codec,
session->write_codec,
frame->data,
frame->datalen,
session->write_impl.actual_samples_per_second,
session->raw_write_frame.data, &session->raw_write_frame.datalen, &session->raw_write_frame.rate, &frame->flags);
if (do_resample && status == SWITCH_STATUS_SUCCESS) {
status = SWITCH_STATUS_RESAMPLE;
}
switch (status) {
case SWITCH_STATUS_RESAMPLE:
resample++;
write_frame = &session->raw_write_frame;
write_frame->rate = frame->codec->implementation->actual_samples_per_second;
if (!session->write_resampler) {
switch_mutex_lock(session->resample_mutex);
status = switch_resample_create(&session->write_resampler,
frame->codec->implementation->actual_samples_per_second,
session->write_impl.actual_samples_per_second,
session->write_impl.decoded_bytes_per_packet, SWITCH_RESAMPLE_QUALITY, 1);
switch_mutex_unlock(session->resample_mutex);
if (status != SWITCH_STATUS_SUCCESS) {
goto done;
}
}
break;
case SWITCH_STATUS_SUCCESS:
session->raw_write_frame.samples = session->raw_write_frame.datalen / sizeof(int16_t);
session->raw_write_frame.timestamp = frame->timestamp;
session->raw_write_frame.rate = frame->rate;
session->raw_write_frame.m = frame->m;
session->raw_write_frame.ssrc = frame->ssrc;
session->raw_write_frame.seq = frame->seq;
session->raw_write_frame.payload = frame->payload;
session->raw_write_frame.flags = 0;
if (switch_test_flag(frame, SFF_PLC)) {
session->raw_write_frame.flags |= SFF_PLC;
}
write_frame = &session->raw_write_frame;
break;
case SWITCH_STATUS_BREAK:
status = SWITCH_STATUS_SUCCESS;
goto error;
case SWITCH_STATUS_NOOP:
if (session->write_resampler) {
switch_mutex_lock(session->resample_mutex);
switch_resample_destroy(&session->write_resampler);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "Deactivating write resampler\n");
switch_mutex_unlock(session->resample_mutex);
}
write_frame = frame;
status = SWITCH_STATUS_SUCCESS;
break;
default:
if (status == SWITCH_STATUS_NOT_INITALIZED) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n");
goto error;
}
if (ptime_mismatch) {
status = perform_write(session, frame, flags, stream_id);
status = SWITCH_STATUS_SUCCESS;
goto error;
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s decoder error!\n",
frame->codec->codec_interface->interface_name);
goto error;
}
}
if (session->write_resampler) {
short *data = write_frame->data;
switch_mutex_lock(session->resample_mutex);
if (session->write_resampler) {
switch_resample_process(session->write_resampler, data, write_frame->datalen / 2);
memcpy(data, session->write_resampler->to, session->write_resampler->to_len * 2);
write_frame->samples = session->write_resampler->to_len;
write_frame->datalen = write_frame->samples * 2;
write_frame->rate = session->write_resampler->to_rate;
did_write_resample = 1;
}
switch_mutex_unlock(session->resample_mutex);
}
if (session->bugs) {
switch_media_bug_t *bp;
int prune = 0;
switch_thread_rwlock_rdlock(session->bug_rwlock);
for (bp = session->bugs; bp; bp = bp->next) {
switch_bool_t ok = SWITCH_TRUE;
if (!bp->ready) {
continue;
}
if (switch_channel_test_flag(session->channel, CF_PAUSE_BUGS) && !switch_core_media_bug_test_flag(bp, SMBF_NO_PAUSE)) {
continue;
}
if (!switch_channel_test_flag(session->channel, CF_ANSWERED) && switch_core_media_bug_test_flag(bp, SMBF_ANSWER_REQ)) {
continue;
}
if (switch_test_flag(bp, SMBF_PRUNE)) {
prune++;
continue;
}
if (switch_test_flag(bp, SMBF_WRITE_STREAM)) {
switch_mutex_lock(bp->write_mutex);
switch_buffer_write(bp->raw_write_buffer, write_frame->data, write_frame->datalen);
switch_mutex_unlock(bp->write_mutex);
if (bp->callback) {
ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_WRITE);
}
}
if (switch_test_flag(bp, SMBF_WRITE_REPLACE)) {
do_bugs = 0;
if (bp->callback) {
bp->write_replace_frame_in = write_frame;
bp->write_replace_frame_out = write_frame;
if ((ok = bp->callback(bp, bp->user_data, SWITCH_ABC_TYPE_WRITE_REPLACE)) == SWITCH_TRUE) {
write_frame = bp->write_replace_frame_out;
}
}
}
if (bp->stop_time && bp->stop_time <= switch_epoch_time_now(NULL)) {
ok = SWITCH_FALSE;
}
if (ok == SWITCH_FALSE) {
switch_set_flag(bp, SMBF_PRUNE);
prune++;
}
}
switch_thread_rwlock_unlock(session->bug_rwlock);
if (prune) {
switch_core_media_bug_prune(session);
}
}
if (do_bugs) {
do_write = TRUE;
write_frame = frame;
goto done;
}
if (session->write_codec) {
if (!ptime_mismatch && write_frame->codec && write_frame->codec->implementation &&
write_frame->codec->implementation->decoded_bytes_per_packet == session->write_impl.decoded_bytes_per_packet) {
perfect = TRUE;
}
if (perfect) {
if (write_frame->datalen < session->write_impl.decoded_bytes_per_packet) {
memset(write_frame->data, 255, session->write_impl.decoded_bytes_per_packet - write_frame->datalen);
write_frame->datalen = session->write_impl.decoded_bytes_per_packet;
}
enc_frame = write_frame;
session->enc_write_frame.datalen = session->enc_write_frame.buflen;
status = switch_core_codec_encode(session->write_codec,
frame->codec,
enc_frame->data,
enc_frame->datalen,
session->write_impl.actual_samples_per_second,
session->enc_write_frame.data, &session->enc_write_frame.datalen, &session->enc_write_frame.rate, &flag);
switch (status) {
case SWITCH_STATUS_RESAMPLE:
resample++;
/* switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Fixme 2\n"); */
case SWITCH_STATUS_SUCCESS:
session->enc_write_frame.codec = session->write_codec;
session->enc_write_frame.samples = enc_frame->datalen / sizeof(int16_t);
if (frame->codec->implementation->samples_per_packet != session->write_impl.samples_per_packet) {
session->enc_write_frame.timestamp = 0;
} else {
session->enc_write_frame.timestamp = frame->timestamp;
}
session->enc_write_frame.payload = session->write_impl.ianacode;
session->enc_write_frame.m = frame->m;
session->enc_write_frame.ssrc = frame->ssrc;
session->enc_write_frame.seq = frame->seq;
write_frame = &session->enc_write_frame;
break;
case SWITCH_STATUS_NOOP:
enc_frame->codec = session->write_codec;
enc_frame->samples = enc_frame->datalen / sizeof(int16_t);
enc_frame->timestamp = frame->timestamp;
enc_frame->m = frame->m;
enc_frame->seq = frame->seq;
enc_frame->ssrc = frame->ssrc;
enc_frame->payload = enc_frame->codec->implementation->ianacode;
write_frame = enc_frame;
status = SWITCH_STATUS_SUCCESS;
break;
case SWITCH_STATUS_NOT_INITALIZED:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n");
write_frame = NULL;
goto error;
default:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s encoder error!\n",
session->read_codec->codec_interface->interface_name);
write_frame = NULL;
goto error;
}
if (flag & SFF_CNG) {
switch_set_flag(write_frame, SFF_CNG);
}
status = perform_write(session, write_frame, flags, stream_id);
goto error;
} else {
if (!session->raw_write_buffer) {
switch_size_t bytes_per_packet = session->write_impl.decoded_bytes_per_packet;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG,
"Engaging Write Buffer at %u bytes to accommodate %u->%u\n",
(uint32_t) bytes_per_packet, write_frame->datalen, session->write_impl.decoded_bytes_per_packet);
if ((status = switch_buffer_create_dynamic(&session->raw_write_buffer,
bytes_per_packet * SWITCH_BUFFER_BLOCK_FRAMES,
bytes_per_packet * SWITCH_BUFFER_START_FRAMES, 0)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Write Buffer Failed!\n");
goto error;
}
}
if (!(switch_buffer_write(session->raw_write_buffer, write_frame->data, write_frame->datalen))) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Write Buffer %u bytes Failed!\n", write_frame->datalen);
status = SWITCH_STATUS_MEMERR;
goto error;
}
status = SWITCH_STATUS_SUCCESS;
while (switch_buffer_inuse(session->raw_write_buffer) >= session->write_impl.decoded_bytes_per_packet) {
int rate;
if (switch_channel_down(session->channel) || !session->raw_write_buffer) {
goto error;
}
if ((session->raw_write_frame.datalen = (uint32_t)
switch_buffer_read(session->raw_write_buffer, session->raw_write_frame.data, session->write_impl.decoded_bytes_per_packet)) == 0) {
goto error;
}
enc_frame = &session->raw_write_frame;
session->raw_write_frame.rate = session->write_impl.actual_samples_per_second;
session->enc_write_frame.datalen = session->enc_write_frame.buflen;
session->enc_write_frame.timestamp = 0;
if (frame->codec && frame->codec->implementation && switch_core_codec_ready(frame->codec)) {
rate = frame->codec->implementation->actual_samples_per_second;
} else {
rate = session->write_impl.actual_samples_per_second;
}
status = switch_core_codec_encode(session->write_codec,
frame->codec,
enc_frame->data,
enc_frame->datalen,
rate,
session->enc_write_frame.data, &session->enc_write_frame.datalen, &session->enc_write_frame.rate, &flag);
switch (status) {
case SWITCH_STATUS_RESAMPLE:
resample++;
session->enc_write_frame.codec = session->write_codec;
session->enc_write_frame.samples = enc_frame->datalen / sizeof(int16_t);
session->enc_write_frame.m = frame->m;
session->enc_write_frame.ssrc = frame->ssrc;
session->enc_write_frame.payload = session->write_impl.ianacode;
write_frame = &session->enc_write_frame;
if (!session->write_resampler) {
switch_mutex_lock(session->resample_mutex);
if (!session->write_resampler) {
status = switch_resample_create(&session->write_resampler,
frame->codec->implementation->actual_samples_per_second,
session->write_impl.actual_samples_per_second,
session->write_impl.decoded_bytes_per_packet, SWITCH_RESAMPLE_QUALITY, 1);
}
switch_mutex_unlock(session->resample_mutex);
if (status != SWITCH_STATUS_SUCCESS) {
goto done;
}
}
break;
case SWITCH_STATUS_SUCCESS:
session->enc_write_frame.codec = session->write_codec;
session->enc_write_frame.samples = enc_frame->datalen / sizeof(int16_t);
session->enc_write_frame.m = frame->m;
session->enc_write_frame.ssrc = frame->ssrc;
session->enc_write_frame.payload = session->write_impl.ianacode;
write_frame = &session->enc_write_frame;
break;
case SWITCH_STATUS_NOOP:
if (session->write_resampler) {
switch_mutex_lock(session->resample_mutex);
if (session->write_resampler) {
switch_resample_destroy(&session->write_resampler);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_NOTICE, "Deactivating write resampler\n");
}
switch_mutex_unlock(session->resample_mutex);
}
enc_frame->codec = session->write_codec;
enc_frame->samples = enc_frame->datalen / sizeof(int16_t);
enc_frame->m = frame->m;
enc_frame->ssrc = frame->ssrc;
enc_frame->payload = enc_frame->codec->implementation->ianacode;
write_frame = enc_frame;
status = SWITCH_STATUS_SUCCESS;
break;
case SWITCH_STATUS_NOT_INITALIZED:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec init error!\n");
write_frame = NULL;
goto error;
default:
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Codec %s encoder error %d!\n",
session->read_codec->codec_interface->interface_name, status);
write_frame = NULL;
goto error;
}
if (!did_write_resample && session->read_resampler) {
short *data = write_frame->data;
switch_mutex_lock(session->resample_mutex);
if (session->read_resampler) {
switch_resample_process(session->read_resampler, data, write_frame->datalen / 2);
memcpy(data, session->read_resampler->to, session->read_resampler->to_len * 2);
write_frame->samples = session->read_resampler->to_len;
write_frame->datalen = session->read_resampler->to_len * 2;
write_frame->rate = session->read_resampler->to_rate;
}
switch_mutex_unlock(session->resample_mutex);
}
if (flag & SFF_CNG) {
switch_set_flag(write_frame, SFF_CNG);
}
if (ptime_mismatch || resample) {
write_frame->timestamp = 0;
}
if ((status = perform_write(session, write_frame, flags, stream_id)) != SWITCH_STATUS_SUCCESS) {
break;
}
}
goto error;
}
}
done:
if (ptime_mismatch || resample) {
write_frame->timestamp = 0;
}
if (do_write) {
status = perform_write(session, write_frame, flags, stream_id);
}
error:
switch_mutex_unlock(session->write_codec->mutex);
switch_mutex_unlock(frame->codec->mutex);
switch_mutex_unlock(session->codec_write_mutex);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_session_set_real_read_codec(switch_core_session_t *session, switch_codec_t *codec)
{
switch_event_t *event;
switch_channel_t *channel = switch_core_session_get_channel(session);
char tmp[30];
switch_status_t status = SWITCH_STATUS_SUCCESS;
int changed_read_codec = 0;
switch_mutex_lock(session->codec_read_mutex);
if (codec && (!codec->implementation || !switch_core_codec_ready(codec))) {
codec = NULL;
}
if (codec) {
/* set real_read_codec and read_codec */
if (!session->real_read_codec) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Original read codec set to %s:%d\n",
switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode);
session->read_codec = session->real_read_codec = codec;
changed_read_codec = 1;
if (codec->implementation) {
session->read_impl = *codec->implementation;
session->real_read_impl = *codec->implementation;
} else {
memset(&session->read_impl, 0, sizeof(session->read_impl));
}
} else { /* replace real_read_codec */
switch_codec_t *cur_codec;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Original read codec replaced with %s:%d\n",
switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode);
/* Set real_read_codec to front of the list of read_codecs */
cur_codec = session->read_codec;
while (cur_codec != NULL) {
if (cur_codec->next == session->real_read_codec) {
cur_codec->next = codec;
break;
}
cur_codec = cur_codec->next;
}
session->real_read_codec = codec;
/* set read_codec with real_read_codec if it no longer is ready */
if (!switch_core_codec_ready(session->read_codec)) {
session->read_codec = codec;
changed_read_codec = 1;
if (codec->implementation) {
session->read_impl = *codec->implementation;
session->real_read_impl = *codec->implementation;
} else {
memset(&session->read_impl, 0, sizeof(session->read_impl));
}
}
}
/* force media bugs to copy the read codec from the next frame */
switch_thread_rwlock_wrlock(session->bug_rwlock);
if (switch_core_codec_ready(&session->bug_codec)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Destroying BUG Codec %s:%d\n",
session->bug_codec.implementation->iananame, session->bug_codec.implementation->ianacode);
switch_core_codec_destroy(&session->bug_codec);
}
switch_thread_rwlock_unlock(session->bug_rwlock);
} else {
status = SWITCH_STATUS_FALSE;
goto end;
}
if (changed_read_codec && session->read_codec && session->read_impl.decoded_bytes_per_packet) {
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(session->channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-read-codec-name", session->read_impl.iananame);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-rate", "%d", session->read_impl.actual_samples_per_second);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-bit-rate", "%d", session->read_impl.bits_per_second);
if (session->read_impl.actual_samples_per_second != session->read_impl.samples_per_second) {
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-reported-read-codec-rate", "%d", session->read_impl.samples_per_second);
}
switch_event_fire(&event);
}
switch_channel_set_variable(channel, "read_codec", session->read_impl.iananame);
switch_snprintf(tmp, sizeof(tmp), "%d", session->read_impl.actual_samples_per_second);
switch_channel_set_variable(channel, "read_rate", tmp);
session->raw_read_frame.codec = session->read_codec;
session->raw_write_frame.codec = session->read_codec;
session->enc_read_frame.codec = session->read_codec;
session->enc_write_frame.codec = session->read_codec;
}
end:
if (session->read_codec) {
switch_channel_set_flag(channel, CF_MEDIA_SET);
}
switch_mutex_unlock(session->codec_read_mutex);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_session_t *session, switch_codec_t *codec)
{
switch_event_t *event;
switch_channel_t *channel = switch_core_session_get_channel(session);
char tmp[30];
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_mutex_lock(session->codec_read_mutex);
if (codec && (!codec->implementation || !switch_core_codec_ready(codec))) {
codec = NULL;
}
if (codec) {
if (!session->real_read_codec) {
session->read_codec = session->real_read_codec = codec;
if (codec->implementation) {
session->read_impl = *codec->implementation;
session->real_read_impl = *codec->implementation;
} else {
memset(&session->read_impl, 0, sizeof(session->read_impl));
}
} else {
if (codec == session->read_codec) {
goto end;
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Push codec %s:%d\n",
switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode);
codec->next = session->read_codec;
session->read_codec = codec;
if (codec->implementation) {
session->read_impl = *codec->implementation;
} else {
memset(&session->read_impl, 0, sizeof(session->read_impl));
}
}
} else {
if (session->read_codec == session->real_read_codec) {
goto end;
}
if (session->read_codec->next) {
switch_codec_t *old = session->read_codec;
session->read_codec = session->read_codec->next;
if (session->read_codec->implementation) {
session->read_impl = *session->read_codec->implementation;
} else {
memset(&session->read_impl, 0, sizeof(session->read_impl));
}
old->next = NULL;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Restore previous codec %s:%d.\n",
switch_channel_get_name(session->channel),
session->read_impl.iananame ? session->read_impl.iananame : "N/A", session->read_impl.ianacode);
} else if (session->real_read_codec) {
session->read_codec = session->real_read_codec;
if (session->real_read_codec->implementation) {
session->read_impl = *session->real_read_codec->implementation;
} else {
memset(&session->read_impl, 0, sizeof(session->read_impl));
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Restore original codec.\n");
} else {
status = SWITCH_STATUS_FALSE;
goto end;
}
}
if (!session->read_codec) {
status = SWITCH_STATUS_FALSE;
goto end;
}
if (session->read_codec && session->read_impl.decoded_bytes_per_packet) {
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(session->channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-read-codec-name", session->read_impl.iananame);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-rate", "%d", session->read_impl.actual_samples_per_second);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-bit-rate", "%d", session->read_impl.bits_per_second);
if (session->read_impl.actual_samples_per_second != session->read_impl.samples_per_second) {
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-reported-read-codec-rate", "%d", session->read_impl.samples_per_second);
}
switch_event_fire(&event);
}
switch_channel_set_variable(channel, "read_codec", session->read_impl.iananame);
switch_snprintf(tmp, sizeof(tmp), "%d", session->read_impl.actual_samples_per_second);
switch_channel_set_variable(channel, "read_rate", tmp);
session->raw_read_frame.codec = session->read_codec;
session->raw_write_frame.codec = session->read_codec;
session->enc_read_frame.codec = session->read_codec;
session->enc_write_frame.codec = session->read_codec;
}
end:
if (session->read_codec) {
switch_channel_set_flag(channel, CF_MEDIA_SET);
}
switch_mutex_unlock(session->codec_read_mutex);
return status;
}
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_channel_t *channel = switch_core_session_get_channel(session);
char tmp[30];
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_mutex_lock(session->codec_write_mutex);
if (!codec || !codec->implementation || !switch_core_codec_ready(codec)) {
if (session->real_write_codec) {
session->write_codec = session->real_write_codec;
session->write_impl = *session->real_write_codec->implementation;
session->real_write_codec = NULL;
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot set NULL codec!\n");
status = SWITCH_STATUS_FALSE;
goto end;
}
} else if (session->write_codec) {
if (session->real_write_codec) {
if (codec == session->real_write_codec) {
session->write_codec = codec;
session->write_impl = *codec->implementation;
session->real_write_codec = NULL;
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot double-set codec!\n");
status = SWITCH_STATUS_FALSE;
goto end;
}
} else {
session->real_write_codec = session->write_codec;
session->write_codec = codec;
session->write_impl = *codec->implementation;
}
} else {
session->write_codec = codec;
session->write_impl = *codec->implementation;
}
if (session->write_codec && codec && session->write_impl.codec_id) {
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(session->channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Channel-Write-Codec-Name", session->write_impl.iananame);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Channel-Write-Codec-Rate", "%d", session->write_impl.actual_samples_per_second);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Channel-Write-codec-bit-rate", "%d", session->write_impl.bits_per_second);
if (session->write_impl.actual_samples_per_second != session->write_impl.samples_per_second) {
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Channel-Reported-Write-Codec-Rate", "%d",
session->write_impl.actual_samples_per_second);
}
switch_event_fire(&event);
}
switch_channel_set_variable(channel, "write_codec", session->write_impl.iananame);
switch_snprintf(tmp, sizeof(tmp), "%d", session->write_impl.actual_samples_per_second);
switch_channel_set_variable(channel, "write_rate", tmp);
}
end:
switch_mutex_unlock(session->codec_write_mutex);
return status;
}
