+ cst_wave *wave;
+ int rate;
+ int channels;
+ int err;
+ char *samples;
+ int num_samples;
+
+ err = snd_pcm_open(&alsa_handle, "default",
+ SND_PCM_STREAM_PLAYBACK, 0);
+ if (err >= 0)
+ {
+ if (err < 0) {
+ snd_pcm_close(alsa_handle);
+ alsa_handle = 0;
+ }
+ }
+ rate = 0;
+ channels = 0;
+ while (fgets(line, sizeof (line) - 1, input) != NULL) {
+ if (!alsa_handle)
+ continue;
+ wave = flite_text_to_wave(line, voice);
+ if (wave->sample_rate != rate ||
+ wave->num_channels != channels)
+ {
+ rate = wave->sample_rate;
+ channels = wave->num_channels;
+ err = snd_pcm_set_params(alsa_handle,
+ SND_PCM_FORMAT_S16,
+ SND_PCM_ACCESS_RW_INTERLEAVED,
+ channels,
+ rate,
+ 1,
+ 100000);
+ if (err < 0)
+ fprintf(stderr, "alsa set_params error %s\n",
+ strerror(-err));
+ }
+ err = snd_pcm_prepare(alsa_handle);
+ if (err < 0)
+ fprintf(stderr, "alsa pcm_prepare error %s\n",
+ strerror(-err));
+ samples = (char *) wave->samples;
+ num_samples = wave->num_samples;
+ while (num_samples > 0) {
+ err = snd_pcm_writei(alsa_handle,
+ samples, num_samples);
+ if (err <= 0) {
+ fprintf(stderr, "alsa write error %s\n",
+ strerror(-err));
+ break;
+ }
+ num_samples -= err;
+ samples += err * 2 * channels;
+ }
+ snd_pcm_drain(alsa_handle);
+ delete_wave(wave);
+ }
+ snd_pcm_close(alsa_handle);
+ alsa_handle = 0;
+ return NULL;
+}