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add session_displace api and app

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5366 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale
2007-06-15 01:47:48 +00:00
parent 0c48210a75
commit 8d0a8a0d47
7 changed files with 302 additions and 9 deletions
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155
src/switch_ivr_async.c
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@@ -96,6 +96,151 @@ SWITCH_DECLARE(void) switch_ivr_session_echo(switch_core_session_t *session)
}
typedef struct {
switch_file_handle_t fh;
int mux;
} displace_helper_t;
static switch_bool_t displace_callback(switch_media_bug_t *bug, void *user_data, switch_abc_type_t type)
{
displace_helper_t *dh = (displace_helper_t *) user_data;
uint8_t data[SWITCH_RECOMMENDED_BUFFER_SIZE];
switch_frame_t frame = { 0 };
frame.data = data;
frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
switch (type) {
case SWITCH_ABC_TYPE_INIT:
break;
case SWITCH_ABC_TYPE_CLOSE:
if (dh) {
switch_core_file_close(&dh->fh);
}
break;
case SWITCH_ABC_TYPE_READ_REPLACE:
{
switch_frame_t *frame = switch_core_media_bug_get_read_replace_frame(bug);
if (dh && !dh->mux) {
memset(frame->data, 255, frame->datalen);
}
switch_core_media_bug_set_read_replace_frame(bug, frame);
}
break;
case SWITCH_ABC_TYPE_WRITE_REPLACE:
if (dh) {
switch_frame_t *frame = NULL;
switch_size_t len;
frame = switch_core_media_bug_get_write_replace_frame(bug);
len = frame->samples;
if (dh->mux) {
int16_t buf[1024];
int16_t *fp = frame->data;
int x;
switch_core_file_read(&dh->fh, buf, &len);
for(x = 0; x < len; x++) {
int32_t mixed = fp[x] + buf[x];
switch_normalize_to_16bit(mixed);
fp[x] = (int16_t) mixed;
}
} else {
switch_core_file_read(&dh->fh, frame->data, &len);
frame->samples = len;
frame->datalen = frame->samples * 2;
}
switch_core_media_bug_set_write_replace_frame(bug, frame);
}
break;
case SWITCH_ABC_TYPE_WRITE:
default:
break;
}
return SWITCH_TRUE;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_stop_displace_session(switch_core_session_t *session, char *file)
{
switch_media_bug_t *bug;
switch_channel_t *channel = switch_core_session_get_channel(session);
assert(channel != NULL);
if ((bug = switch_channel_get_private(channel, file))) {
switch_channel_set_private(channel, file, NULL);
switch_core_media_bug_remove(session, &bug);
return SWITCH_STATUS_SUCCESS;
}
return SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(switch_status_t) switch_ivr_displace_session(switch_core_session_t *session, char *file, uint32_t limit, const char *flags)
{
switch_channel_t *channel;
switch_codec_t *read_codec;
switch_media_bug_t *bug;
switch_status_t status;
time_t to = 0;
displace_helper_t *dh;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
if ((bug = switch_channel_get_private(channel, file))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Only 1 of the same file per channel please!\n");
return SWITCH_STATUS_FALSE;
}
if (!(dh = switch_core_session_alloc(session, sizeof(*dh)))) {
return SWITCH_STATUS_MEMERR;
}
read_codec = switch_core_session_get_read_codec(session);
assert(read_codec != NULL);
dh->fh.channels = read_codec->implementation->number_of_channels;
dh->fh.samplerate = read_codec->implementation->samples_per_second;
if (switch_core_file_open(&dh->fh,
file,
read_codec->implementation->number_of_channels,
read_codec->implementation->samples_per_second,
SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT,
switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
switch_core_session_reset(session);
return SWITCH_STATUS_GENERR;
}
switch_channel_answer(channel);
if (limit) {
to = time(NULL) + limit;
}
if (flags && strchr(flags, 'm')) {
dh->mux++;
}
if ((status = switch_core_media_bug_add(session, displace_callback, dh, to, SMBF_WRITE_REPLACE | SMBF_READ_REPLACE, &bug)) != SWITCH_STATUS_SUCCESS) {
switch_core_file_close(&dh->fh);
return status;
}
switch_channel_set_private(channel, file, bug);
return SWITCH_STATUS_SUCCESS;
}
static switch_bool_t record_callback(switch_media_bug_t *bug, void *user_data, switch_abc_type_t type)
{
@@ -158,14 +303,20 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_record_session(switch_core_session_t
switch_status_t status;
time_t to = 0;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
if ((bug = switch_channel_get_private(channel, file))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Only 1 of the same file per channel please!\n");
return SWITCH_STATUS_FALSE;
}
if (!fh) {
if (!(fh = switch_core_session_alloc(session, sizeof(*fh)))) {
return SWITCH_STATUS_MEMERR;
}
}
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
read_codec = switch_core_session_get_read_codec(session);
assert(read_codec != NULL);