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esdmgr.c
362 lines (307 loc) · 10.9 KB
/
esdmgr.c
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#include <esd.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
/*********************************************************************/
/* print server into to stdout */
void esd_print_server_info( esd_server_info_t *server_info )
{
printf( "server version = %d\n", server_info->version );
printf( "server format = 0x%08x\n", server_info->format );
printf( "server rate = %d\n", server_info->rate );
return;
}
/*********************************************************************/
/* print player into to stdout */
void esd_print_player_info( esd_player_info_t *player_info )
{
printf( "player %d name = %s\n",
player_info->source_id, player_info->name );
printf( "player %d format = 0x%08x\n",
player_info->source_id, player_info->format );
printf( "player %d rate = %d\n",
player_info->source_id, player_info->rate );
printf( "player %d left = %d\n",
player_info->source_id, player_info->left_vol_scale );
printf( "player %d right = %d\n",
player_info->source_id, player_info->right_vol_scale );
return;
}
/*********************************************************************/
/* print server into to stdout */
void esd_print_sample_info( esd_sample_info_t *sample_info )
{
printf( "sample %d name = %s\n",
sample_info->sample_id, sample_info->name );
printf( "sample %d format = 0x%08x\n",
sample_info->sample_id, sample_info->format );
printf( "sample %d rate = %d\n",
sample_info->sample_id, sample_info->rate );
printf( "sample %d left = %d\n",
sample_info->sample_id, sample_info->left_vol_scale );
printf( "sample %d right = %d\n",
sample_info->sample_id, sample_info->right_vol_scale );
printf( "sample %d length = %d\n",
sample_info->sample_id, sample_info->length );
return;
}
/*********************************************************************/
/* print all info to stdout */
void esd_print_all_info( esd_info_t *all_info )
{
esd_player_info_t *player_info;
esd_sample_info_t *sample_info;
/* dump server info */
esd_print_server_info( all_info->server );
/* dump player info */
for ( player_info = all_info->player_list
; player_info != NULL ; player_info = player_info->next )
{
esd_print_player_info( player_info );
}
/* dump sample info */
for ( sample_info = all_info->sample_list
; sample_info != NULL ; sample_info = sample_info->next )
{
esd_print_sample_info( sample_info );
}
return;
}
/*********************************************************************/
/* retrieve server properties (sample rate, format, version number) */
esd_server_info_t *esd_get_server_info( int esd )
{
int proto = ESD_PROTO_SERVER_INFO;
int version = 0;
/* allocate the server info structure */
esd_server_info_t *server_info
= (esd_server_info_t *) malloc( sizeof(esd_server_info_t) );
if ( !server_info ) return server_info;
/* tell the server to cough up the info */
write( esd, &proto, sizeof(proto) );
if ( write( esd, &version, sizeof(version) ) != sizeof(version) ) {
free( server_info );
return NULL;
}
/* get the info from the server */
read( esd, &server_info->version, sizeof(server_info->version) );
read( esd, &server_info->rate, sizeof(server_info->rate) );
if ( read( esd, &server_info->format, sizeof(server_info->format) )
!= sizeof(server_info->format) ) {
free( server_info );
return NULL;
}
return server_info;
}
/*********************************************************************/
/* release all memory allocated for the server properties structure */
void esd_free_server_info( esd_server_info_t *server_info )
{
free( server_info );
return;
}
/*********************************************************************/
/* retrieve all information from server */
esd_info_t *esd_get_all_info( int esd )
{
int proto = ESD_PROTO_ALL_INFO;
int version = 0;
esd_server_info_t *server_info;
esd_player_info_t *player_info;
esd_sample_info_t *sample_info;
/* allocate the entire info structure, and set defaults to NULL */
esd_info_t *info = (esd_info_t *) malloc( sizeof(esd_info_t) );
info->player_list = NULL;
info->sample_list = NULL;
/* allocate the server info structure */
server_info = (esd_server_info_t *) malloc( sizeof(esd_server_info_t) );
if ( !server_info ) {
esd_free_all_info( info );
return NULL;
}
/* tell the server to cough up the info */
write( esd, &proto, sizeof(proto) );
if ( write( esd, &version, sizeof(version) ) != sizeof(version) ) {
esd_free_all_info( info );
free( server_info );
return NULL;
}
/* get the server info */
read( esd, &server_info->version, sizeof(server_info->version) );
read( esd, &server_info->rate, sizeof(server_info->rate) );
if ( read( esd, &server_info->format, sizeof(server_info->format) )
!= sizeof(server_info->format) ) {
esd_free_all_info( info );
free( server_info );
return NULL;
}
info->server = server_info;
/* get the player info */
do
{
player_info = (esd_player_info_t *) malloc( sizeof(esd_player_info_t) );
if ( !player_info ) {
esd_free_all_info( info );
return NULL;
}
read( esd, &player_info->source_id, sizeof(player_info->source_id) );
read( esd, &player_info->name, ESD_NAME_MAX );
player_info->name[ ESD_NAME_MAX - 1 ] = '\0';
read( esd, &player_info->rate, sizeof(player_info->rate) );
read( esd, &player_info->left_vol_scale, sizeof(player_info->left_vol_scale) );
read( esd, &player_info->right_vol_scale, sizeof(player_info->right_vol_scale) );
if ( read( esd, &player_info->format, sizeof(player_info->format) )
!= sizeof(player_info->format) ) {
free( player_info );
esd_free_all_info( info );
return NULL;
}
if ( player_info->source_id > 0 ) {
player_info->next = info->player_list;
info->player_list = player_info;
}
} while( player_info->source_id > 0 );
free( player_info );
/* get the sample info */
do
{
sample_info = (esd_sample_info_t *) malloc( sizeof(esd_sample_info_t) );
if ( !sample_info ) {
esd_free_all_info( info );
return NULL;
}
read( esd, &sample_info->sample_id, sizeof(sample_info->sample_id) );
read( esd, &sample_info->name, ESD_NAME_MAX );
sample_info->name[ ESD_NAME_MAX - 1 ] = '\0';
read( esd, &sample_info->rate, sizeof(sample_info->rate) );
read( esd, &sample_info->left_vol_scale, sizeof(sample_info->left_vol_scale) );
read( esd, &sample_info->right_vol_scale, sizeof(sample_info->right_vol_scale) );
read( esd, &sample_info->format, sizeof(sample_info->format) );
if ( read( esd, &sample_info->length, sizeof(sample_info->length) )
!= sizeof(sample_info->length) ) {
free( sample_info );
esd_free_all_info( info );
return NULL;
}
if ( sample_info->sample_id > 0 ) {
sample_info->next = info->sample_list;
info->sample_list = sample_info;
}
} while( sample_info->sample_id > 0 );
free( sample_info );
return info;
}
/*********************************************************************/
/* retrieve all information from server, and update until unsubsribed or closed */
esd_info_t *esd_subscribe_all_info( int esd )
{
fprintf( stderr, "- esd_subscribe_all_info: not yet implemented!\n" );
if(esd) {
fprintf(stderr, "but you passed me something anyways\n");
}
return NULL;
}
/*********************************************************************/
/* call to update the info structure with new information, and call callbacks */
esd_info_t *esd_update_info( int esd, esd_info_t *info,
esd_update_info_callbacks_t *callbacks )
{
fprintf( stderr, "- esd_update_info: not yet implemented!\n" );
if(esd)
if(info)
if(callbacks)
fprintf(stderr, "but you passed me something anyways\n");
return NULL;
}
/*********************************************************************/
/* call to update the info structure with new information, and call callbacks */
esd_info_t *esd_unsubscribe_info( int esd )
{
fprintf( stderr, "- esd_unsubscribe_info: not yet implemented!\n" );
if(esd)
fprintf(stderr, "but you passed me something anyways\n");
return NULL;
}
/*********************************************************************/
/* release all memory allocated for the esd info structure */
void esd_free_all_info( esd_info_t *info )
{
esd_player_info_t *player_info, *next_player_info;
esd_sample_info_t *sample_info, *next_sample_info;
free( info->server );
player_info = info->player_list;
while ( player_info != NULL ) {
next_player_info = player_info->next;
free( player_info );
player_info = next_player_info;
}
sample_info = info->sample_list;
while ( sample_info != NULL ) {
next_sample_info = sample_info->next;
free( sample_info );
sample_info = next_sample_info;
}
free( info );
return;
}
/* reset the volume panning for a stream */
int esd_set_stream_pan( int esd, int stream_id,
int left_scale, int right_scale )
{
int ok;
int proto = ESD_PROTO_STREAM_PAN;
/* send the stream panning information */
if ( write( esd, &proto, sizeof(proto) ) != sizeof(proto) )
return -1;
if ( write( esd, &stream_id, sizeof(stream_id) ) != sizeof(stream_id) )
return -1;
if ( write( esd, &left_scale, sizeof(left_scale) ) != sizeof(left_scale) )
return -1;
if ( write( esd, &right_scale, sizeof(right_scale) ) != sizeof(right_scale) )
return -1;
/* flush the socket */
/* fsync( sock ); */
/* read the status back from the server */
if ( read( esd, &ok, sizeof(ok) ) != sizeof(ok) )
return -1;
return ok;
}
/* reset the default volume panning for a sample */
int esd_set_default_sample_pan( int esd, int sample_id,
int left_scale, int right_scale )
{
int ok;
int proto = ESD_PROTO_SAMPLE_PAN;
/* send the stream panning information */
if ( write( esd, &proto, sizeof(proto) ) != sizeof(proto) )
return -1;
if ( write( esd, &sample_id, sizeof(sample_id) ) != sizeof(sample_id) )
return -1;
if ( write( esd, &left_scale, sizeof(left_scale) ) != sizeof(left_scale) )
return -1;
if ( write( esd, &right_scale, sizeof(right_scale) ) != sizeof(right_scale) )
return -1;
/* flush the socket */
/* fsync( sock ); */
/* read the status back from the server */
if ( read( esd, &ok, sizeof(ok) ) != sizeof(ok) )
return -1;
return ok;
}
/* see if the server is in stnaby, autostandby, etc */
esd_standby_mode_t esd_get_standby_mode( int esd )
{
int proto = ESD_PROTO_STANDBY_MODE, mode = ESM_ERROR, version = 0;
/* diagnostic info */
/*
if ( getenv( "ESDBG" ) )
printf( "esound getting standby mode\n" );
*/
write( esd, &proto, sizeof(proto) );
if ( write( esd, &version, sizeof(version) ) != sizeof(version) ) {
return ESM_ERROR;
}
if ( read( esd, &mode, sizeof(mode) ) != sizeof(mode) )
return ESM_ERROR;
return mode;
}