na_play_main.cc

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/*                Centre for Speech Technology Research                  */
/*                     University of Edinburgh, UK                       */
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/*                  Authors: Paul Taylor, Alan Black                     */
/*                          (c) 1995-1999                                */
/*-----------------------------------------------------------------------*/
/*                     General play back program                         */
/*                                                                       */
/*=======================================================================*/

#include "EST.h"
#include "EST_audio.h"
#include "EST_cmd_line_options.h"

using namespace std;

int main (int argc, char *argv[])
{
    EST_Wave sig;
    EST_String in_file("-"), out_file("-");
    EST_StrList files;
    EST_Option al;
    EST_Litem *p;

    parse_command_line
    (argc,argv,
     EST_String("[input file0] [input file1] ...\n")+
     "Summary; play waveform files on audio device\n"+
     "use \"-\" to make input and output files stdin/out\n"+
     "-h               options help\n"+
     options_wave_input()+
     "-p <string>      audio device protocol. Ths supported types are\n"
     "                 "+options_supported_audio()+"\n"
     "-command <string> command to play wave when protocol\n"+
     "                 is audio_command\n"
     "-basic           HTML audio/basic format, if unheadered treat\n"
     "                 as ulaw 8K\n\n"
     "-r*              ESPS compatible way of selecting subrange of file.\n"
     "                 The options -start, -end, -to and -from are \n"
     "                 recommended\n\n"
     "-quality <string>  either [ high | low ]. \"high\" will ensure \n"
     "                 that proper resampling is used. \"low\" means play \n"
     "                 as fast as possible, with a minimum of processing\n\n"
     "-server <string> play sound on machine (when protocol is\n"
     "                 server-based)\n"
     "-audiodevice <string> use specified audiodevice if approrpriate\n"
     "                 for protocol\n"
     "-scale <float>    change the gain (volume) of the signal. 1.0 is default\n"
     "-v               verbose. Print file names when playing\n"
     "-wait            wait for a key to be pressed between each file\n",
     files, al);

    // by default, parse_cl_ops adds a stdout file called "-". This is
    // irrelevant for na_play and needs to be removed.
    if (al.present("-server"))
    al.add_item("-display", al.val("-server"));

    for (p = files.head(); p; )
    {
    if (al.present("-v"))
        cout << "playing " << files(p) << endl;

    if (read_wave(sig, files(p), al) != format_ok)
        exit(-1);

    EST_Wave tmp, *toplay=&sig;

    if (al.present("-c"))
      {
        wave_extract_channel(tmp,sig,al.ival("-c"));
        toplay=&tmp;
      }

    /* 
     * This is redundant as play_wave does this
     *
    else  if (sig.num_channels() > 1)
      {
        wave_combine_channels(tmp, sig);
        toplay=&tmp;
      }
*/

    if (al.present("-scale"))
      (*toplay).rescale(al.fval("-scale"));

    play_wave(*toplay, al);

    // pause for a keystroke between each file
    if (al.present("-wait") && p->next())
    {
        if (getc(stdin) == 'a')
        continue;
    }
    p = p->next();
    }
    return 0;
}

void override_lib_ops(EST_Option &a_list, EST_Option &al)
{
    // Reorg -- can be deleted ?
    // general options
    a_list.override_val("sample_rate", al.val("-f", 0));
    
    // low pass filtering options.
    a_list.override_val("lpf_cutoff",al.val("-u", 0));
    a_list.override_val("lpf_order",al.val("-o", 0));
    
    if (al.val("-L", 0) == "true")
    a_list.override_val("do_low_pass", "true");
    if (al.val("-R", 0) == "true")
    a_list.override_val("do_low_pass", "false");
    a_list.override_val("color", al.val("-color", 0));    
    a_list.override_val("f0_file_type", al.val("-otype", 0));
    a_list.override_val("wave_file_type", al.val("-itype", 0));
}