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#include <esd.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
/*******************************************************************/
/* esdfile.c - audiofile wrappers for sane handling of files */
int esd_send_file( int esd, AFfilehandle au_file, int frame_length )
{
/* data for transfer */
char buf[ ESD_BUF_SIZE ];
int frames_read;
int buf_frames = ESD_BUF_SIZE / frame_length;
while ( ( frames_read = afReadFrames( au_file, AF_DEFAULT_TRACK,
buf, buf_frames ) ) )
{
if ( write ( esd, buf, frames_read * frame_length ) <= 0)
return 1;
}
/* diagnostic info */
/*
if ( getenv( "ESDBG" ) )
printf( "esound sending file\n" );
*/
return 0;
}
int esd_play_file( const char *name_prefix, const char *filename, int fallback )
{
/* input from libaudiofile... */
AFfilehandle in_file;
int in_format, in_width, in_channels, frame_count;
int in_compression;
double in_rate;
int bytes_per_frame;
/* output to esound... */
int out_sock, out_bits, out_channels, out_rate;
int out_mode = ESD_STREAM, out_func = ESD_PLAY;
esd_format_t out_format;
char name[ ESD_NAME_MAX ] = "";
/* diagnostic info */
/*
if ( getenv( "ESDBG" ) )
printf( "esound playing file\n" );
*/
/* open the audio file */
in_file = afOpenFile( filename, "rb", NULL );
if ( !in_file )
return 0;
/* get audio file parameters */
frame_count = afGetFrameCount( in_file, AF_DEFAULT_TRACK );
in_channels = afGetChannels( in_file, AF_DEFAULT_TRACK );
in_rate = afGetRate( in_file, AF_DEFAULT_TRACK );
in_compression = afGetCompression ( in_file, AF_DEFAULT_TRACK );
afGetSampleFormat( in_file, AF_DEFAULT_TRACK, &in_format, &in_width );
if(getenv("ESDBG"))
printf ("frames: %i channels: %i rate: %f format: %i width: %i\n",
frame_count, in_channels, in_rate, in_format, in_width);
/* This check was added because audiofile doesn't tell us whether or
* not it will play compressed audio correctly. */
if ( in_compression != AF_COMPRESSION_NONE &&
in_compression != AF_COMPRESSION_G711_ULAW &&
in_compression != AF_COMPRESSION_G711_ALAW &&
in_compression != AF_COMPRESSION_IMA &&
in_compression != AF_COMPRESSION_MS_ADPCM)
{
/* fputs ("compressed audio not supported supported\n", stderr); */
return 0;
}
/* convert audiofile parameters to EsounD parameters */
if ( in_width == 8 )
out_bits = ESD_BITS8;
else if ( in_width == 16 )
out_bits = ESD_BITS16;
else
{
/* fputs ("only sample widths of 8 and 16 supported\n", stderr); */
return 0;
}
bytes_per_frame = ( in_width * in_channels ) / 8;
if ( in_channels == 1 )
out_channels = ESD_MONO;
else if ( in_channels == 2 )
out_channels = ESD_STEREO;
else
{
/* fputs ("only 1 or 2 channel samples supported\n", stderr); */
return 0;
}
out_format = out_bits | out_channels | out_mode | out_func;
out_rate = (int) in_rate;
/* construct name */
if ( name_prefix ) {
strncpy( name, name_prefix, ESD_NAME_MAX - 2 );
strcat( name, ":" );
}
strncpy( name + strlen( name ), filename, ESD_NAME_MAX - strlen( name ) );
/* connect to server and play stream */
if ( fallback )
out_sock = esd_play_stream_fallback( out_format, out_rate, NULL, name );
else
out_sock = esd_play_stream( out_format, out_rate, NULL, filename );
if ( out_sock <= 0 )
return 0;
/* play */
esd_send_file( out_sock, in_file, bytes_per_frame );
/* close up and go home */
close( out_sock );
if ( afCloseFile ( in_file ) )
return 0;
/* diagnostic info */
/*
if ( getenv( "ESDBG" ) )
printf( "esound played file\n" );
*/
return 1;
}
int esd_file_cache( int esd, const char *name_prefix, const char *filename )
{
/* input from libaudiofile... */
AFfilehandle in_file;
int in_format, in_width, in_channels, frame_count;
double in_rate;
int bytes_per_frame;
/* output to esound... */
int out_bits, out_channels, out_rate;
int out_mode = ESD_STREAM, out_func = ESD_PLAY;
esd_format_t out_format;
int length, sample_id, confirm_id;
char name[ ESD_NAME_MAX ];
/* diagnostic info */
/*
if ( getenv( "ESDBG" ) )
printf( "esound caching file\n" );
*/
/* open the audio file */
in_file = afOpenFile( filename, "rb", NULL );
if ( !in_file )
return -1;
/* get audio file parameters */
frame_count = afGetFrameCount( in_file, AF_DEFAULT_TRACK );
in_channels = afGetChannels( in_file, AF_DEFAULT_TRACK );
in_rate = afGetRate( in_file, AF_DEFAULT_TRACK );
length = afGetTrackBytes( in_file, AF_DEFAULT_TRACK );
afGetSampleFormat( in_file, AF_DEFAULT_TRACK, &in_format, &in_width );
/* printf ("frames: %i channels: %i rate: %f format: %i width: %i\n",
* frame_count, in_channels, in_rate, in_format, in_width);
*/
/* convert audiofile parameters to EsounD parameters */
if ( in_width == 8 )
out_bits = ESD_BITS8;
else if ( in_width == 16 )
out_bits = ESD_BITS16;
else
{
/* fputs ("only sample widths of 8 and 16 supported\n", stderr); */
return -1;
}
bytes_per_frame = ( in_width * in_channels ) / 8;
if ( in_channels == 1 )
out_channels = ESD_MONO;
else if ( in_channels == 2 )
out_channels = ESD_STEREO;
else
{
/* fputs ("only 1 or 2 channel samples supported\n", stderr); */
return -1;
}
out_format = out_bits | out_channels | out_mode | out_func;
out_rate = (int) in_rate;
/* construct name */
if ( name_prefix ) {
strncpy( name, name_prefix, ESD_NAME_MAX - 2 );
strcat( name, ":" );
}
strncpy( name + strlen( name ), filename, ESD_NAME_MAX - strlen( name ) );
/* connect to server and play stream */
sample_id = esd_sample_cache( esd, out_format, out_rate,
length, name );
/* play */
esd_send_file( esd, in_file, bytes_per_frame );
/* close up and go home */
if ( afCloseFile ( in_file ) )
return -1;
confirm_id = esd_confirm_sample_cache( esd );
if ( confirm_id != sample_id )
return -1;
/* diagnostic info */
/*
if ( getenv( "ESDBG" ) )
printf( "esound cached file\n" );
*/
return sample_id;
}
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