コード例 #1
0
ファイル: celt_decoder.c プロジェクト: Sciumo/opus
int celt_decoder_init(CELTDecoder *st, opus_int32 sampling_rate, int channels)
{
   int ret;
   ret = opus_custom_decoder_init(st, opus_custom_mode_create(48000, 960, NULL), channels);
   if (ret != OPUS_OK)
      return ret;
   st->downsample = resampling_factor(sampling_rate);
   if (st->downsample==0)
      return OPUS_BAD_ARG;
   else
      return OPUS_OK;
}
コード例 #2
0
ファイル: celt_decoder.c プロジェクト: Sciumo/opus
CELTDecoder *opus_custom_decoder_create(const CELTMode *mode, int channels, int *error)
{
   int ret;
   CELTDecoder *st = (CELTDecoder *)opus_alloc(opus_custom_decoder_get_size(mode, channels));
   ret = opus_custom_decoder_init(st, mode, channels);
   if (ret != OPUS_OK)
   {
      opus_custom_decoder_destroy(st);
      st = NULL;
   }
   if (error)
      *error = ret;
   return st;
}
コード例 #3
0
ファイル: netsource.c プロジェクト: jackaudio/jack2
/**
 * This Function allocates all the I/O Ports which are added the lists.
 */
void
alloc_ports (int n_capture_audio, int n_playback_audio, int n_capture_midi, int n_playback_midi)
{

    int port_flags = JackPortIsOutput;
    int chn;
    jack_port_t *port;
    char buf[32];

    capture_ports = NULL;
    /* Allocate audio capture channels */
    for (chn = 0; chn < n_capture_audio; chn++) {
        snprintf (buf, sizeof (buf) - 1, "capture_%u", chn + 1);
        port = jack_port_register (client, buf, JACK_DEFAULT_AUDIO_TYPE, port_flags, 0);
        if (!port) {
            printf( "jack_netsource: cannot register %s port\n", buf);
            break;
        }
        if (bitdepth == 1000) {
#if HAVE_CELT
#if HAVE_CELT_API_0_11
            CELTMode *celt_mode = celt_mode_create( jack_get_sample_rate( client ), jack_get_buffer_size(client), NULL );
            capture_srcs = jack_slist_append(capture_srcs, celt_decoder_create_custom( celt_mode, 1, NULL ) );
#elif HAVE_CELT_API_0_7 || HAVE_CELT_API_0_8
            CELTMode *celt_mode = celt_mode_create( jack_get_sample_rate( client ), jack_get_buffer_size(client), NULL );
            capture_srcs = jack_slist_append(capture_srcs, celt_decoder_create( celt_mode, 1, NULL ) );
#else
            CELTMode *celt_mode = celt_mode_create( jack_get_sample_rate( client ), 1, jack_get_buffer_size(client), NULL );
            capture_srcs = jack_slist_append(capture_srcs, celt_decoder_create( celt_mode ) );
#endif
#endif
        } else if (bitdepth == 999) {
#if HAVE_OPUS
            int err;
            OpusCustomMode *opus_mode = opus_custom_mode_create(jack_get_sample_rate( client ), jack_get_buffer_size(client), &err);
            if (err != OPUS_OK) { printf("OPUS MODE FAILED\n"); }
            OpusCustomDecoder *decoder = opus_custom_decoder_create(opus_mode, 1, &err);
            if (err != OPUS_OK) { printf("OPUS DECODER FAILED\n"); }
            opus_custom_decoder_init(decoder, opus_mode, 1);
            capture_srcs = jack_slist_append(capture_srcs, decoder);
#endif
        } else {
#if HAVE_SAMPLERATE
            capture_srcs = jack_slist_append (capture_srcs, src_new (SRC_LINEAR, 1, NULL));
#endif
        }
        capture_ports = jack_slist_append (capture_ports, port);
    }

    /* Allocate midi capture channels */
    for (chn = n_capture_audio; chn < n_capture_midi + n_capture_audio; chn++) {
        snprintf (buf, sizeof (buf) - 1, "capture_%u", chn + 1);
        port = jack_port_register (client, buf, JACK_DEFAULT_MIDI_TYPE, port_flags, 0);
        if (!port) {
            printf ("jack_netsource: cannot register %s port\n", buf);
            break;
        }
        capture_ports = jack_slist_append(capture_ports, port);
    }

    /* Allocate audio playback channels */
    port_flags = JackPortIsInput;
    playback_ports = NULL;
    for (chn = 0; chn < n_playback_audio; chn++) {
        snprintf (buf, sizeof (buf) - 1, "playback_%u", chn + 1);
        port = jack_port_register (client, buf, JACK_DEFAULT_AUDIO_TYPE, port_flags, 0);
        if (!port) {
            printf ("jack_netsource: cannot register %s port\n", buf);
            break;
        }
        if( bitdepth == 1000 ) {
#if HAVE_CELT
#if HAVE_CELT_API_0_11
            CELTMode *celt_mode = celt_mode_create( jack_get_sample_rate (client), jack_get_buffer_size(client), NULL );
            playback_srcs = jack_slist_append(playback_srcs, celt_encoder_create_custom( celt_mode, 1, NULL ) );
#elif HAVE_CELT_API_0_7 || HAVE_CELT_API_0_8
            CELTMode *celt_mode = celt_mode_create( jack_get_sample_rate (client), jack_get_buffer_size(client), NULL );
            playback_srcs = jack_slist_append(playback_srcs, celt_encoder_create( celt_mode, 1, NULL ) );
#else
            CELTMode *celt_mode = celt_mode_create( jack_get_sample_rate (client), 1, jack_get_buffer_size(client), NULL );
            playback_srcs = jack_slist_append(playback_srcs, celt_encoder_create( celt_mode ) );
#endif
#endif
        } else if( bitdepth == 999 ) {
#if HAVE_OPUS
            const int kbps = factor;
            printf("new opus encoder %d kbps\n", kbps);
            int err;
            OpusCustomMode *opus_mode = opus_custom_mode_create(jack_get_sample_rate (client), jack_get_buffer_size(client), &err ); // XXX free me
            if (err != OPUS_OK) { printf("OPUS MODE FAILED\n"); }
            OpusCustomEncoder *oe = opus_custom_encoder_create( opus_mode, 1, &err );
            if (err != OPUS_OK) { printf("OPUS ENCODER FAILED\n"); }
            opus_custom_encoder_ctl(oe, OPUS_SET_BITRATE(kbps*1024)); // bits per second
            opus_custom_encoder_ctl(oe, OPUS_SET_COMPLEXITY(10));
            opus_custom_encoder_ctl(oe, OPUS_SET_SIGNAL(OPUS_SIGNAL_MUSIC));
            opus_custom_encoder_ctl(oe, OPUS_SET_SIGNAL(OPUS_APPLICATION_RESTRICTED_LOWDELAY));
            opus_custom_encoder_init(oe, opus_mode, 1);
            playback_srcs = jack_slist_append(playback_srcs, oe);
#endif
        } else {
#if HAVE_SAMPLERATE
            playback_srcs = jack_slist_append (playback_srcs, src_new (SRC_LINEAR, 1, NULL));
#endif
        }
        playback_ports = jack_slist_append (playback_ports, port);
    }

    /* Allocate midi playback channels */
    for (chn = n_playback_audio; chn < n_playback_midi + n_playback_audio; chn++) {
        snprintf (buf, sizeof (buf) - 1, "playback_%u", chn + 1);
        port = jack_port_register (client, buf, JACK_DEFAULT_MIDI_TYPE, port_flags, 0);
        if (!port) {
            printf ("jack_netsource: cannot register %s port\n", buf);
            break;
        }
        playback_ports = jack_slist_append (playback_ports, port);
    }
}