/*
* main()
*/
int main(int argc, char *argv[])
{
pj_caching_pool cp;
pjmedia_endpt *med_endpt;
pj_pool_t *pool;
pjmedia_port *play_port;
pjmedia_port *rec_port;
pjmedia_port *bidir_port;
pjmedia_snd_port *snd;
char tmp[10];
pj_status_t status;
if (argc != 3) {
puts("Error: arguments required");
puts(desc);
return 1;
}
/* Must init PJLIB first: */
status = pj_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Must create a pool factory before we can allocate any memory. */
pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0);
/*
* Initialize media endpoint.
* This will implicitly initialize PJMEDIA too.
*/
status = pjmedia_endpt_create(&cp.factory, NULL, 1, &med_endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Create memory pool for our file player */
pool = pj_pool_create( &cp.factory, /* pool factory */
"wav", /* pool name. */
4000, /* init size */
4000, /* increment size */
NULL /* callback on error */
);
/* Create file media port from the WAV file */
status = pjmedia_wav_player_port_create( pool, /* memory pool */
argv[1], /* file to play */
PTIME, /* ptime. */
0, /* flags */
0, /* default buffer */
&play_port);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to open input WAV file", status);
return 1;
}
if (play_port->info.channel_count != 1) {
puts("Error: input WAV must have 1 channel audio");
return 1;
}
if (play_port->info.bits_per_sample != 16) {
puts("Error: input WAV must be encoded as 16bit PCM");
return 1;
}
#ifdef PJ_DARWINOS
/* Need to force clock rate on MacOS */
if (play_port->info.clock_rate != 44100) {
pjmedia_port *resample_port;
status = pjmedia_resample_port_create(pool, play_port, 44100, 0,
&resample_port);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to create resampling port", status);
return 1;
}
data.play_port = resample_port;
}
#endif
/* Create WAV output file port */
status = pjmedia_wav_writer_port_create(pool, argv[2],
play_port->info.clock_rate,
play_port->info.channel_count,
play_port->info.samples_per_frame,
play_port->info.bits_per_sample,
0, 0, &rec_port);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to open output file", status);
return 1;
}
/* Create bidirectional port from the WAV ports */
pjmedia_bidirectional_port_create(pool, play_port, rec_port, &bidir_port);
/* Create sound device. */
status = pjmedia_snd_port_create(pool, -1, -1,
play_port->info.clock_rate,
play_port->info.channel_count,
play_port->info.samples_per_frame,
play_port->info.bits_per_sample,
0, &snd);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to open sound device", status);
return 1;
}
/* Customize AEC */
pjmedia_snd_port_set_ec(snd, pool, TAIL_LENGTH, 0);
/* Connect sound to the port */
pjmedia_snd_port_connect(snd, bidir_port);
puts("");
printf("Playing %s and recording to %s\n", argv[1], argv[2]);
puts("Press <ENTER> to quit");
fgets(tmp, sizeof(tmp), stdin);
/* Start deinitialization: */
/* Destroy sound device */
status = pjmedia_snd_port_destroy( snd );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Destroy file port(s) */
status = pjmedia_port_destroy( play_port );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
status = pjmedia_port_destroy( rec_port );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Release application pool */
pj_pool_release( pool );
/* Destroy media endpoint. */
pjmedia_endpt_destroy( med_endpt );
/* Destroy pool factory */
pj_caching_pool_destroy( &cp );
/* Shutdown PJLIB */
pj_shutdown();
/* Done. */
return 0;
}
int main(int argc, char *argv[])
{
pj_caching_pool cp;
pjmedia_endpt *med_endpt;
pj_pool_t *pool;
pjmedia_port *file_port;
pjmedia_port *resample_port;
pjmedia_snd_port *snd_port;
char tmp[10];
pj_status_t status;
int dev_id = -1;
int sampling_rate = CLOCK_RATE;
int channel_count = NCHANNELS;
int samples_per_frame = NSAMPLES;
int bits_per_sample = NBITS;
//int ptime;
//int down_samples;
/* Must init PJLIB first: */
status = pj_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Get options */
if (get_snd_options(THIS_FILE, argc, argv, &dev_id, &sampling_rate,
&channel_count, &samples_per_frame, &bits_per_sample))
{
puts("");
puts(desc);
return 1;
}
if (!argv[pj_optind]) {
puts("Error: no file is specified");
puts(desc);
return 1;
}
/* Must create a pool factory before we can allocate any memory. */
pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0);
/*
* Initialize media endpoint.
* This will implicitly initialize PJMEDIA too.
*/
status = pjmedia_endpt_create(&cp.factory, NULL, 1, &med_endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Create memory pool for our file player */
pool = pj_pool_create( &cp.factory, /* pool factory */
"app", /* pool name. */
4000, /* init size */
4000, /* increment size */
NULL /* callback on error */
);
/* Create the file port. */
status = pjmedia_wav_player_port_create( pool, argv[pj_optind], 0, 0,
0, &file_port);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to open file", status);
return 1;
}
/* File must have same number of channels. */
if (PJMEDIA_PIA_CCNT(&file_port->info) != (unsigned)channel_count) {
PJ_LOG(3,(THIS_FILE, "Error: file has different number of channels. "
"Perhaps you'd need -c option?"));
pjmedia_port_destroy(file_port);
return 1;
}
/* Calculate number of samples per frame to be taken from file port */
//ptime = samples_per_frame * 1000 / sampling_rate;
/* Create the resample port. */
status = pjmedia_resample_port_create( pool, file_port,
sampling_rate, 0,
&resample_port);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to create resample port", status);
return 1;
}
/* Create sound player port. */
status = pjmedia_snd_port_create(
pool, /* pool */
dev_id, /* device */
dev_id, /* device */
sampling_rate, /* clock rate. */
channel_count, /* # of channels. */
samples_per_frame, /* samples per frame. */
bits_per_sample, /* bits per sample. */
0, /* options */
&snd_port /* returned port */
);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to open sound device", status);
return 1;
}
/* Connect resample port to sound device */
status = pjmedia_snd_port_connect( snd_port, resample_port);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Error connecting sound ports", status);
return 1;
}
/* Dump memory usage */
dump_pool_usage(THIS_FILE, &cp);
/*
* File should be playing and looping now, using sound device's thread.
*/
/* Sleep to allow log messages to flush */
pj_thread_sleep(100);
printf("Playing %s at sampling rate %d (original file sampling rate=%d)\n",
argv[pj_optind], sampling_rate,
PJMEDIA_PIA_SRATE(&file_port->info));
puts("");
puts("Press <ENTER> to stop playing and quit");
if (fgets(tmp, sizeof(tmp), stdin) == NULL) {
puts("EOF while reading stdin, will quit now..");
}
/* Start deinitialization: */
/* Destroy sound device */
status = pjmedia_snd_port_destroy( snd_port );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Destroy resample port.
* This will destroy all downstream ports (e.g. the file port)
*/
status = pjmedia_port_destroy( resample_port );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Release application pool */
pj_pool_release( pool );
/* Destroy media endpoint. */
pjmedia_endpt_destroy( med_endpt );
/* Destroy pool factory */
pj_caching_pool_destroy( &cp );
/* Shutdown PJLIB */
pj_shutdown();
/* Done. */
return 0;
}
pjs_audio_combine::pjs_audio_combine(pjs_global &global, pjs_media_sync &sync,
unsigned output_clock_rate, unsigned input_clock_rate,
unsigned input_samples_per_frame, bool oneway) :
m_global(global), m_sync(sync), m_combiner(NULL), m_input1(NULL), m_input2(
NULL), m_resample1(NULL), m_resample2(NULL), m_oneway(oneway)
{
m_clock_rate = output_clock_rate;
m_started = false;
m_ready = false;
m_putbuffer = NULL;
m_buffer_size = 0;
if (input_clock_rate != output_clock_rate)
m_samples_per_frame = 2 * input_samples_per_frame * output_clock_rate /input_clock_rate;
else
m_samples_per_frame = 2 * input_samples_per_frame;
m_pool = pj_pool_create(m_global.get_pool_factory(), "pjs_audio_combine", 128,
128, NULL);
if (m_pool)
{
if (pjmedia_splitcomb_create(m_pool, output_clock_rate, 2,
m_samples_per_frame, 16, 0, &m_combiner) == PJ_SUCCESS)
{
if (pjmedia_splitcomb_create_rev_channel(m_pool, m_combiner, 0, 0,
&m_input1) == PJ_SUCCESS)
{
if (pjmedia_splitcomb_create_rev_channel(m_pool, m_combiner, 1, 0,
&m_input2) == PJ_SUCCESS)
{
if (input_clock_rate != output_clock_rate)
{
if (pjmedia_resample_port_create(m_pool, m_input1,
output_clock_rate,
PJMEDIA_RESAMPLE_DONT_DESTROY_DN
| PJMEDIA_RESAMPLE_USE_SMALL_FILTER,
&m_resample1)==PJ_SUCCESS)
{
if (pjmedia_resample_port_create(m_pool, m_input2,
output_clock_rate,
PJMEDIA_RESAMPLE_DONT_DESTROY_DN
| PJMEDIA_RESAMPLE_USE_SMALL_FILTER,
&m_resample2)==PJ_SUCCESS)
{
m_ready = true;
}
else
m_resample2 = NULL;
}
else
m_resample1 = NULL;
}
else
m_ready = true;
if (m_ready)
{
m_buffer_size = m_combiner->info.samples_per_frame
* m_combiner->info.channel_count
* m_combiner->info.bits_per_sample / 8;
m_getbuffer = (pj_int16_t*) pj_pool_alloc(m_pool, m_buffer_size);
if (!m_oneway)
{
m_putbuffer = (pj_int16_t*) pj_pool_alloc(m_pool, m_buffer_size);
m_ready = m_getbuffer && m_putbuffer;
}
else
{
m_ready = m_getbuffer;
m_putbuffer = NULL;
}
}
}
else
m_input2 = NULL;
}
else
m_input1 = NULL;
}
else
m_combiner = NULL;
}
}