source: roaraudio/roarfish/play.c @ 12:78dfd1b91bcc

//play.c:

#include "roarfish.h"

struct roarfish_play_inst {
 int roarfh;
 int begun;
 FishSoundInfo fsinfo;
 FishSound * fsound;
};

int decoded_float (FishSound * fsound, float ** pcm, long frames, void * user_data) {
 struct roarfish_play_inst * inst = (struct roarfish_play_inst*) user_data;
 int16_t * data;
 int i;
 double s;

 if (!inst->begun) {
   fish_sound_command (fsound, FISH_SOUND_GET_INFO, &(inst->fsinfo),
                       sizeof (FishSoundInfo));
   if ( (inst->roarfh = roar_simple_play(inst->fsinfo.samplerate, inst->fsinfo.channels,
                                         16, ROAR_CODEC_NATIVE, NULL, "roarfish")) == -1 ) {
    return -1;
   }
   inst->begun = 1;
 }

 if ( (data = malloc(frames*2)) == NULL ) {
  return -1;
 }

 for (i = 0; i < frames; i++) {
  s  = ((float*)pcm)[i];
  s *= 32767;
  data[i] = s;
 }


 write(inst->roarfh, (char*)data, frames * 2);


 free(data);

 return 0;
}

int read_packet (OGGZ * oggz, ogg_packet * op, long serialno, void * user_data) {
 FishSound * fsound = (FishSound *)user_data;

 fish_sound_prepare_truncation (fsound, op->granulepos, op->e_o_s);
 fish_sound_decode (fsound, op->packet, op->bytes);

 return 0;
}

int play (char * file, char ** opts) {
 OGGZ * oggz;
 struct roarfish_play_inst inst;

 inst.roarfh = -1;
 inst.begun  = 0;

 inst.fsound = fish_sound_new(FISH_SOUND_DECODE, &inst.fsinfo);
 fish_sound_set_interleave(inst.fsound, 1);

 fish_sound_set_decoded_float_ilv(inst.fsound, decoded_float, (void*)&inst);

 if ((oggz = oggz_open(file, OGGZ_READ)) == NULL) {
  ROAR_ERR("Can not open input file: %s", file);
  return -1;
 }

 oggz_set_read_callback(oggz, -1, read_packet, inst.fsound);

 // TODO: add some status display here?
 while (oggz_read(oggz, 1024));

 oggz_close(oggz);

 fish_sound_delete(inst.fsound);

 return -1;
}

//ll