mpv/libao2/audio_out.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "audio_out.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "mplayer.h" /* for exit_player() */
// there are some globals:
ao_data_t ao_data={0,0,0,0,OUTBURST,-1,0};
char *ao_subdevice = NULL;
#ifdef USE_OSS_AUDIO
extern ao_functions_t audio_out_oss;
#endif
#ifdef MACOSX
extern ao_functions_t audio_out_macosx;
#endif
#ifdef USE_ARTS
extern ao_functions_t audio_out_arts;
#endif
#ifdef USE_ESD
extern ao_functions_t audio_out_esd;
#endif
#ifdef USE_POLYP
extern ao_functions_t audio_out_polyp;
#endif
#ifdef USE_JACK
extern ao_functions_t audio_out_jack;
#endif
#ifdef USE_OPENAL
extern ao_functions_t audio_out_openal;
#endif
extern ao_functions_t audio_out_null;
#ifdef HAVE_ALSA5
extern ao_functions_t audio_out_alsa5;
#endif
#ifdef HAVE_ALSA9
extern ao_functions_t audio_out_alsa;
#endif
#ifdef HAVE_ALSA1X
extern ao_functions_t audio_out_alsa;
#endif
#ifdef HAVE_NAS
extern ao_functions_t audio_out_nas;
#endif
#ifdef HAVE_SDL
extern ao_functions_t audio_out_sdl;
#endif
#ifdef USE_SUN_AUDIO
extern ao_functions_t audio_out_sun;
#endif
#ifdef USE_SGI_AUDIO
extern ao_functions_t audio_out_sgi;
#endif
#ifdef HAVE_WIN32WAVEOUT
extern ao_functions_t audio_out_win32;
#endif
#ifdef HAVE_DIRECTX
extern ao_functions_t audio_out_dsound;
#endif
#ifdef HAVE_DXR2
extern ao_functions_t audio_out_dxr2;
#endif
extern ao_functions_t audio_out_mpegpes;
extern ao_functions_t audio_out_pcm;
extern ao_functions_t audio_out_pss;
ao_functions_t* audio_out_drivers[] =
{
// vo-related: will fail unless you also do -vo mpegpes/dxr2
&audio_out_mpegpes,
#ifdef HAVE_DXR2
&audio_out_dxr2,
#endif
// native:
#ifdef HAVE_DIRECTX
&audio_out_dsound,
#endif
#ifdef HAVE_WIN32WAVEOUT
&audio_out_win32,
#endif
#ifdef MACOSX
&audio_out_macosx,
#endif
#ifdef USE_OSS_AUDIO
&audio_out_oss,
#endif
#ifdef HAVE_ALSA1X
&audio_out_alsa,
#endif
#ifdef HAVE_ALSA9
&audio_out_alsa,
#endif
#ifdef HAVE_ALSA5
&audio_out_alsa5,
#endif
#ifdef USE_SGI_AUDIO
&audio_out_sgi,
#endif
#ifdef USE_SUN_AUDIO
&audio_out_sun,
#endif
// wrappers:
#ifdef USE_ARTS
&audio_out_arts,
#endif
#ifdef USE_ESD
&audio_out_esd,
#endif
#ifdef USE_POLYP
&audio_out_polyp,
#endif
#ifdef USE_JACK
&audio_out_jack,
#endif
#ifdef HAVE_NAS
&audio_out_nas,
#endif
#ifdef HAVE_SDL
&audio_out_sdl,
#endif
#ifdef USE_OPENAL
&audio_out_openal,
#endif
&audio_out_null,
// should not be auto-selected:
&audio_out_pcm,
NULL
};
void list_audio_out(void){
int i=0;
mp_msg(MSGT_AO, MSGL_INFO, MSGTR_AvailableAudioOutputDrivers);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_OUTPUTS\n");
while (audio_out_drivers[i]) {
const ao_info_t *info = audio_out_drivers[i++]->info;
mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n", info->short_name, info->name);
}
mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
}
ao_functions_t* init_best_audio_out(char** ao_list,int use_plugin,int rate,int channels,int format,int flags){
int i;
// first try the preferred drivers, with their optional subdevice param:
if(ao_list && ao_list[0])
while(ao_list[0][0]){
char* ao=ao_list[0];
int ao_len;
if (strncmp(ao, "alsa9", 5) == 0 || strncmp(ao, "alsa1x", 6) == 0) {
mp_msg(MSGT_AO, MSGL_FATAL, MSGTR_AO_ALSA9_1x_Removed);
exit_player(NULL);
}
if (ao_subdevice) {
free(ao_subdevice);
ao_subdevice = NULL;
}
ao_subdevice=strchr(ao,':');
if(ao_subdevice){
ao_len = ao_subdevice - ao;
ao_subdevice = strdup(&ao[ao_len + 1]);
}
else
ao_len = strlen(ao);
for(i=0;audio_out_drivers[i];i++){
ao_functions_t* audio_out=audio_out_drivers[i];
if(!strncmp(audio_out->info->short_name,ao,ao_len)){
// name matches, try it
if(audio_out->init(rate,channels,format,flags))
return audio_out; // success!
}
}
// continue...
++ao_list;
if(!(ao_list[0])) return NULL; // do NOT fallback to others
}
if (ao_subdevice) {
free(ao_subdevice);
ao_subdevice = NULL;
}
// now try the rest...
for(i=0;audio_out_drivers[i];i++){
ao_functions_t* audio_out=audio_out_drivers[i];
// if(audio_out->control(AOCONTROL_QUERY_FORMAT, (int)format) == CONTROL_TRUE)
if(audio_out->init(rate,channels,format,flags))
return audio_out; // success!
}
return NULL;
}