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mirror of https://github.com/mpv-player/mpv synced 2024-12-24 15:52:25 +00:00

iec958-init completly rewritten

some debug printfs cleaned


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7078 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
joyping 2002-08-23 13:03:00 +00:00
parent 4617c88ba9
commit 325311af33
2 changed files with 98 additions and 278 deletions

View File

@ -3,10 +3,11 @@
(C) Alex Beregszaszi <alex@naxine.org>
modified for better alsa-0.9.0beta12(rc1)-support by Joy Winter <joy@pingfm.org>
additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
modified for real alsa-0.9.0-support by Joy Winter <joy@pingfm.org>
additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
08/22/2002 iec958-init rewritten and merged with common init, joy
Any bugreports regarding to this driver are welcome either to the mplayer-user-mailinglist or directly to the authors.
Any bugreports regarding to this driver are welcome.
*/
#include <errno.h>
@ -47,7 +48,7 @@ static snd_pcm_t *alsa_handler;
static snd_pcm_format_t alsa_format;
static snd_pcm_hw_params_t *alsa_hwparams;
static snd_pcm_sw_params_t *alsa_swparams;
static char *alsa_device;
const char *alsa_device;
/* possible 4096, original 8192
* was only needed for calculating chunksize? */
@ -74,126 +75,6 @@ static int set_block_mode;
#define SET_CHUNKSIZE
#undef USE_POLL
snd_pcm_t *spdif_init(char *pcm_name)
{
//char *pcm_name = "hw:0,2"; /* first card second device */
static snd_aes_iec958_t spdif;
static snd_aes_iec958_t spdif_test;
snd_pcm_info_t *info;
snd_pcm_t *handler;
snd_pcm_format_t format = SND_PCM_FORMAT_S16_LE;
unsigned int channels = 2;
unsigned int rate = 48000;
int err, c;
if ((err = snd_pcm_open(&handler, pcm_name, SND_PCM_STREAM_PLAYBACK, 0)) < 0)
{
fprintf(stderr, "open: %s\n", snd_strerror(err));
return NULL;
}
snd_pcm_info_alloca(&info);
if ((err = snd_pcm_info(handler, info)) < 0) {
fprintf(stderr, "info: %s\n", snd_strerror(err));
snd_pcm_close(handler);
return NULL;
}
printf("device: %d, subdevice: %d\n", snd_pcm_info_get_device(info),
snd_pcm_info_get_subdevice(info));
{
snd_ctl_elem_value_t *ctl;
snd_ctl_t *ctl_handler;
snd_ctl_elem_id_t *elem_id;
unsigned int elem_device;
const char *elem_name;
char ctl_name[12];
int ctl_card;
//elem_id = 36;
spdif.status[0] = IEC958_AES0_NONAUDIO |
IEC958_AES0_CON_EMPHASIS_NONE;
spdif.status[1] = IEC958_AES1_CON_ORIGINAL |
IEC958_AES1_CON_PCM_CODER;
spdif.status[2] = 0;
spdif.status[3] = IEC958_AES3_CON_FS_48000;
snd_ctl_elem_value_alloca(&ctl);
snd_ctl_elem_id_alloca(&elem_id);
snd_ctl_elem_value_set_interface(ctl, SND_CTL_ELEM_IFACE_PCM); //SND_CTL_ELEM_IFACE_MIXER
snd_ctl_elem_value_set_device(ctl, snd_pcm_info_get_device(info));
snd_ctl_elem_value_set_subdevice(ctl, snd_pcm_info_get_subdevice(info));
snd_ctl_elem_value_set_name(ctl,SND_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM)); //SWITCH
snd_ctl_elem_value_set_iec958(ctl, &spdif);
ctl_card = snd_pcm_info_get_card(info);
if (ctl_card < 0) {
fprintf(stderr, "Unable to setup the IEC958 (S/PDIF) interface - PCM has no assigned card");
goto __diga_end;
}
sprintf(ctl_name, "hw:%d", ctl_card);
printf("hw:%d\n", ctl_card);
if ((err = snd_ctl_open(&ctl_handler, ctl_name, 0)) < 0) {
fprintf(stderr, "Unable to open the control interface '%s': %s\n", ctl_name, snd_strerror(err));
goto __diga_end;
}
if ((err = snd_ctl_elem_write(ctl_handler, ctl)) < 0) {
//fprintf(stderr, "Unable to update the IEC958 control: %s\n", snd_strerror(err));
printf("alsa-spdif-init: cant set spdif-through automatically\n");
goto __diga_end;
}
snd_ctl_close(ctl_handler);
__diga_end:
}
{
snd_pcm_hw_params_t *params;
snd_pcm_sw_params_t *swparams;
snd_pcm_hw_params_alloca(&params);
snd_pcm_sw_params_alloca(&swparams);
err = snd_pcm_hw_params_any(handler, params);
if (err < 0) {
fprintf(stderr, "Broken configuration for this PCM: no configurations available");
return NULL;
}
err = snd_pcm_hw_params_set_access(handler, params,SND_PCM_ACCESS_RW_INTERLEAVED);
if (err < 0) {
fprintf(stderr, "Access tyep not available");
return NULL;
}
err = snd_pcm_hw_params_set_format(handler, params, format);
if (err < 0) {
fprintf(stderr, "Sample format non available");
return NULL;
}
err = snd_pcm_hw_params_set_channels(handler, params, channels);
if (err < 0) {
fprintf(stderr, "Channels count non avaible");
return NULL;
}
err = snd_pcm_hw_params_set_rate_near(handler, params, rate, 0); assert(err >= 0);
err = snd_pcm_hw_params(handler, params);
if (err < 0) {
fprintf(stderr, "Cannot set buffer size\n");
return NULL;
}
snd_pcm_sw_params_current(handler, swparams);
}
return handler;
}
/* to set/get/query special features/parameters */
static int control(int cmd, int arg)
@ -413,7 +294,6 @@ static int init(int rate_hz, int channels, int format, int flags)
char *token_str[3];
char* test_str = strdup(ao_subdevice);
//printf("subd=%s, test=%s\n", ao_subdevice,test_str);
if ((strcspn(ao_subdevice, ":")) > 0) {
@ -422,12 +302,10 @@ static int init(int rate_hz, int channels, int format, int flags)
while (((sub_str = strtok(NULL, ":")) != NULL) && (i2 <= 3)) {
*(token_str+i2) = sub_str;
//printf("token %i: %s\n", i2, *(token_str+i2));
i2 += 1;
}
for (i3=0; i3 <= i2-1; i3++) {
//printf("test %i, %s\n", i3, *(token_str+i3));
if (strcmp(*(token_str + i3), "mmap") == 0) {
ao_mmap = 1;
}
@ -436,19 +314,16 @@ static int init(int rate_hz, int channels, int format, int flags)
}
else if (strcmp(*(token_str+i3), "hw") == 0) {
if ((i3 < i2-1) && (strcmp(*(token_str+i3+1), "noblock") != 0) && (strcmp(*(token_str+i3+1), "mmap") != 0)) {
//printf("next tok = %s\n", *(token_str+(i3+1)));
alsa_device = alloca(ALSA_DEVICE_SIZE);
snprintf(alsa_device, ALSA_DEVICE_SIZE, "hw:%s", *(token_str+(i3+1)));
device_set = 1;
}
else {
//printf("setting hw\n");
alsa_device = *(token_str+i3);
device_set = 1;
}
}
else if (device_set == 0 && (!ao_mmap || !ao_noblock)) {
//printf("setting common, %s\n", *(token_str+i3));
alsa_device = *(token_str+i3);
device_set = 1;
}
@ -456,6 +331,50 @@ static int init(int rate_hz, int channels, int format, int flags)
}
} //end parsing ao_subdevice
/* switch for spdif
* sets opening sequence for SPDIF
* sets also the playback and other switches 'on the fly'
* while opening the abstract alias for the spdif subdevice
* 'iec958'
*/
if (format == AFMT_AC3) {
char devstr[128];
unsigned char s[4];
int err, c;
switch (channels) {
case 1:
case 2:
s[0] = IEC958_AES0_NONAUDIO |
IEC958_AES0_CON_EMPHASIS_NONE;
s[1] = IEC958_AES1_CON_ORIGINAL |
IEC958_AES1_CON_PCM_CODER;
s[2] = 0;
s[3] = IEC958_AES3_CON_FS_48000;
sprintf(devstr, "iec958:AES0=0x%x,AES1=0x%x,AES2=0x%x,AES3=0x%x",
s[0], s[1], s[2], s[3]);
if (verbose)
printf("alsa-spdif-init: playing AC3, %i channels\n", channels);
break;
case 4:
strcpy(devstr, "surround40");
break;
case 6:
strcpy(devstr, "surround51");
break;
default:
fprintf(stderr, "%d channels are not supported\n", channels);
exit (0);
}
alsa_device = devstr;
}
if (alsa_device == NULL)
{
int tmp_device, tmp_subdevice, err;
@ -507,15 +426,6 @@ static int init(int rate_hz, int channels, int format, int flags)
printf("alsa-init: soundcard set to %s\n", alsa_device);
}
// switch for spdif
// Try to initialize the SPDIF interface
if (format == AFMT_AC3) {
if (device_set)
alsa_handler = spdif_init(alsa_device);
else
alsa_handler = spdif_init("iec958");
}
//setting modes for block or nonblock-mode
if (ao_noblock) {
open_mode = SND_PCM_NONBLOCK;

View File

@ -3,10 +3,11 @@
(C) Alex Beregszaszi <alex@naxine.org>
modified for better alsa-0.9.0beta12(rc1)-support by Joy Winter <joy@pingfm.org>
additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
modified for real alsa-0.9.0-support by Joy Winter <joy@pingfm.org>
additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>
08/22/2002 iec958-init rewritten and merged with common init, joy
Any bugreports regarding to this driver are welcome either to the mplayer-user-mailinglist or directly to the authors.
Any bugreports regarding to this driver are welcome.
*/
#include <errno.h>
@ -47,7 +48,7 @@ static snd_pcm_t *alsa_handler;
static snd_pcm_format_t alsa_format;
static snd_pcm_hw_params_t *alsa_hwparams;
static snd_pcm_sw_params_t *alsa_swparams;
static char *alsa_device;
const char *alsa_device;
/* possible 4096, original 8192
* was only needed for calculating chunksize? */
@ -74,126 +75,6 @@ static int set_block_mode;
#define SET_CHUNKSIZE
#undef USE_POLL
snd_pcm_t *spdif_init(char *pcm_name)
{
//char *pcm_name = "hw:0,2"; /* first card second device */
static snd_aes_iec958_t spdif;
static snd_aes_iec958_t spdif_test;
snd_pcm_info_t *info;
snd_pcm_t *handler;
snd_pcm_format_t format = SND_PCM_FORMAT_S16_LE;
unsigned int channels = 2;
unsigned int rate = 48000;
int err, c;
if ((err = snd_pcm_open(&handler, pcm_name, SND_PCM_STREAM_PLAYBACK, 0)) < 0)
{
fprintf(stderr, "open: %s\n", snd_strerror(err));
return NULL;
}
snd_pcm_info_alloca(&info);
if ((err = snd_pcm_info(handler, info)) < 0) {
fprintf(stderr, "info: %s\n", snd_strerror(err));
snd_pcm_close(handler);
return NULL;
}
printf("device: %d, subdevice: %d\n", snd_pcm_info_get_device(info),
snd_pcm_info_get_subdevice(info));
{
snd_ctl_elem_value_t *ctl;
snd_ctl_t *ctl_handler;
snd_ctl_elem_id_t *elem_id;
unsigned int elem_device;
const char *elem_name;
char ctl_name[12];
int ctl_card;
//elem_id = 36;
spdif.status[0] = IEC958_AES0_NONAUDIO |
IEC958_AES0_CON_EMPHASIS_NONE;
spdif.status[1] = IEC958_AES1_CON_ORIGINAL |
IEC958_AES1_CON_PCM_CODER;
spdif.status[2] = 0;
spdif.status[3] = IEC958_AES3_CON_FS_48000;
snd_ctl_elem_value_alloca(&ctl);
snd_ctl_elem_id_alloca(&elem_id);
snd_ctl_elem_value_set_interface(ctl, SND_CTL_ELEM_IFACE_PCM); //SND_CTL_ELEM_IFACE_MIXER
snd_ctl_elem_value_set_device(ctl, snd_pcm_info_get_device(info));
snd_ctl_elem_value_set_subdevice(ctl, snd_pcm_info_get_subdevice(info));
snd_ctl_elem_value_set_name(ctl,SND_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM)); //SWITCH
snd_ctl_elem_value_set_iec958(ctl, &spdif);
ctl_card = snd_pcm_info_get_card(info);
if (ctl_card < 0) {
fprintf(stderr, "Unable to setup the IEC958 (S/PDIF) interface - PCM has no assigned card");
goto __diga_end;
}
sprintf(ctl_name, "hw:%d", ctl_card);
printf("hw:%d\n", ctl_card);
if ((err = snd_ctl_open(&ctl_handler, ctl_name, 0)) < 0) {
fprintf(stderr, "Unable to open the control interface '%s': %s\n", ctl_name, snd_strerror(err));
goto __diga_end;
}
if ((err = snd_ctl_elem_write(ctl_handler, ctl)) < 0) {
//fprintf(stderr, "Unable to update the IEC958 control: %s\n", snd_strerror(err));
printf("alsa-spdif-init: cant set spdif-through automatically\n");
goto __diga_end;
}
snd_ctl_close(ctl_handler);
__diga_end:
}
{
snd_pcm_hw_params_t *params;
snd_pcm_sw_params_t *swparams;
snd_pcm_hw_params_alloca(&params);
snd_pcm_sw_params_alloca(&swparams);
err = snd_pcm_hw_params_any(handler, params);
if (err < 0) {
fprintf(stderr, "Broken configuration for this PCM: no configurations available");
return NULL;
}
err = snd_pcm_hw_params_set_access(handler, params,SND_PCM_ACCESS_RW_INTERLEAVED);
if (err < 0) {
fprintf(stderr, "Access tyep not available");
return NULL;
}
err = snd_pcm_hw_params_set_format(handler, params, format);
if (err < 0) {
fprintf(stderr, "Sample format non available");
return NULL;
}
err = snd_pcm_hw_params_set_channels(handler, params, channels);
if (err < 0) {
fprintf(stderr, "Channels count non avaible");
return NULL;
}
err = snd_pcm_hw_params_set_rate_near(handler, params, rate, 0); assert(err >= 0);
err = snd_pcm_hw_params(handler, params);
if (err < 0) {
fprintf(stderr, "Cannot set buffer size\n");
return NULL;
}
snd_pcm_sw_params_current(handler, swparams);
}
return handler;
}
/* to set/get/query special features/parameters */
static int control(int cmd, int arg)
@ -413,7 +294,6 @@ static int init(int rate_hz, int channels, int format, int flags)
char *token_str[3];
char* test_str = strdup(ao_subdevice);
//printf("subd=%s, test=%s\n", ao_subdevice,test_str);
if ((strcspn(ao_subdevice, ":")) > 0) {
@ -422,12 +302,10 @@ static int init(int rate_hz, int channels, int format, int flags)
while (((sub_str = strtok(NULL, ":")) != NULL) && (i2 <= 3)) {
*(token_str+i2) = sub_str;
//printf("token %i: %s\n", i2, *(token_str+i2));
i2 += 1;
}
for (i3=0; i3 <= i2-1; i3++) {
//printf("test %i, %s\n", i3, *(token_str+i3));
if (strcmp(*(token_str + i3), "mmap") == 0) {
ao_mmap = 1;
}
@ -436,19 +314,16 @@ static int init(int rate_hz, int channels, int format, int flags)
}
else if (strcmp(*(token_str+i3), "hw") == 0) {
if ((i3 < i2-1) && (strcmp(*(token_str+i3+1), "noblock") != 0) && (strcmp(*(token_str+i3+1), "mmap") != 0)) {
//printf("next tok = %s\n", *(token_str+(i3+1)));
alsa_device = alloca(ALSA_DEVICE_SIZE);
snprintf(alsa_device, ALSA_DEVICE_SIZE, "hw:%s", *(token_str+(i3+1)));
device_set = 1;
}
else {
//printf("setting hw\n");
alsa_device = *(token_str+i3);
device_set = 1;
}
}
else if (device_set == 0 && (!ao_mmap || !ao_noblock)) {
//printf("setting common, %s\n", *(token_str+i3));
alsa_device = *(token_str+i3);
device_set = 1;
}
@ -456,6 +331,50 @@ static int init(int rate_hz, int channels, int format, int flags)
}
} //end parsing ao_subdevice
/* switch for spdif
* sets opening sequence for SPDIF
* sets also the playback and other switches 'on the fly'
* while opening the abstract alias for the spdif subdevice
* 'iec958'
*/
if (format == AFMT_AC3) {
char devstr[128];
unsigned char s[4];
int err, c;
switch (channels) {
case 1:
case 2:
s[0] = IEC958_AES0_NONAUDIO |
IEC958_AES0_CON_EMPHASIS_NONE;
s[1] = IEC958_AES1_CON_ORIGINAL |
IEC958_AES1_CON_PCM_CODER;
s[2] = 0;
s[3] = IEC958_AES3_CON_FS_48000;
sprintf(devstr, "iec958:AES0=0x%x,AES1=0x%x,AES2=0x%x,AES3=0x%x",
s[0], s[1], s[2], s[3]);
if (verbose)
printf("alsa-spdif-init: playing AC3, %i channels\n", channels);
break;
case 4:
strcpy(devstr, "surround40");
break;
case 6:
strcpy(devstr, "surround51");
break;
default:
fprintf(stderr, "%d channels are not supported\n", channels);
exit (0);
}
alsa_device = devstr;
}
if (alsa_device == NULL)
{
int tmp_device, tmp_subdevice, err;
@ -507,15 +426,6 @@ static int init(int rate_hz, int channels, int format, int flags)
printf("alsa-init: soundcard set to %s\n", alsa_device);
}
// switch for spdif
// Try to initialize the SPDIF interface
if (format == AFMT_AC3) {
if (device_set)
alsa_handler = spdif_init(alsa_device);
else
alsa_handler = spdif_init("iec958");
}
//setting modes for block or nonblock-mode
if (ao_noblock) {
open_mode = SND_PCM_NONBLOCK;