Esempio n. 1
0
/*
 * 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;
}
Esempio n. 2
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;

}
Esempio n. 3
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;
	}
}