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add silence_stream 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8963 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2008-07-09 19:03:25 +00:00
parent 544ff9cb6f
commit 9c575d38c4
1 changed files with 75 additions and 0 deletions
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75
src/mod/formats/mod_tone_stream/mod_tone_stream.c
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@ -35,6 +35,72 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_tone_stream_load);
SWITCH_MODULE_DEFINITION(mod_tone_stream, mod_tone_stream_load, NULL, NULL);
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_tone_stream_shutdown);
struct sleep_handle {
int32_t samples;
int silence;
};
static switch_status_t sleep_stream_file_open(switch_file_handle_t *handle, const char *path)
{
struct sleep_handle *sh;
int ms;
sh = switch_core_alloc(handle->memory_pool, sizeof(*sh));
ms = atoi(path);
if (ms > 0) {
char *p;
sh->samples = (handle->samplerate / 1000) * ms;
if ((p = strchr(path, ','))) {
p++;
ms = atoi(p);
if (ms > 0) {
sh->silence = ms;
}
}
handle->private_info = sh;
return SWITCH_STATUS_SUCCESS;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "invalid format!\n");
return SWITCH_STATUS_GENERR;
}
static switch_status_t sleep_stream_file_close(switch_file_handle_t *handle)
{
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sleep_stream_file_read(switch_file_handle_t *handle, void *data, size_t *len)
{
struct sleep_handle *sh = handle->private_info;
if (sh->samples <= 0) {
return SWITCH_STATUS_FALSE;
}
if (*len > sh->samples) {
*len = sh->samples;
}
sh->samples -= *len;
if (sh->silence) {
switch_generate_sln_silence((int16_t *) data, *len, sh->silence);
} else {
memset(data, 0, *len);
}
return SWITCH_STATUS_SUCCESS;
}
static int teletone_handler(teletone_generation_session_t *ts, teletone_tone_map_t *map)
{
switch_buffer_t *audio_buffer = ts->user_data;
@ -130,11 +196,13 @@ static switch_status_t tone_stream_file_read(switch_file_handle_t *handle, void
/* Registration */
static char *supported_formats[SWITCH_MAX_CODECS] = { 0 };
static char *sleep_supported_formats[SWITCH_MAX_CODECS] = { 0 };
SWITCH_MODULE_LOAD_FUNCTION(mod_tone_stream_load)
{
switch_file_interface_t *file_interface;
supported_formats[0] = "tone_stream";
sleep_supported_formats[0] = "sleep_stream";
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
file_interface = switch_loadable_module_create_interface(*module_interface, SWITCH_FILE_INTERFACE);
@ -144,6 +212,13 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_tone_stream_load)
file_interface->file_close = tone_stream_file_close;
file_interface->file_read = tone_stream_file_read;
file_interface = switch_loadable_module_create_interface(*module_interface, SWITCH_FILE_INTERFACE);
file_interface->interface_name = modname;
file_interface->extens = sleep_supported_formats;
file_interface->file_open = sleep_stream_file_open;
file_interface->file_close = sleep_stream_file_close;
file_interface->file_read = sleep_stream_file_read;
/* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS;
}