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fixes provided by reimar dörfinger. mixer, subdevice parsing, alsa#help,

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set chunksize, others.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12806 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
joyping 2004-07-13 15:47:16 +00:00
parent 74000888f5
commit d7ad1015c1
1 changed files with 74 additions and 78 deletions
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152
libao2/ao_alsa.c
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@ -79,7 +79,7 @@ static int alsa_can_pause = 0;
#define ALSA_DEVICE_SIZE 256
#undef BUFFERTIME
#undef SET_CHUNKSIZE
#define SET_CHUNKSIZE
#undef USE_POLL
/* to set/get/query special features/parameters */
@ -104,7 +104,7 @@ static int control(int cmd, void *arg)
long pmin, pmax;
long get_vol, set_vol;
float calc_vol, diff, f_multi;
float f_multi;
if(mixer_channel) mix_name = mixer_channel;
if(mixer_device) card = mixer_device;
@ -152,17 +152,11 @@ static int control(int cmd, void *arg)
}
snd_mixer_selem_get_playback_volume_range(elem,&pmin,&pmax);
f_multi = (100 / (float)pmax);
f_multi = (100 / (float)pmax - pmin);
if (cmd == AOCONTROL_SET_VOLUME) {
diff = (vol->left+vol->right) / 2;
set_vol = rint(diff / f_multi);
if (set_vol < 0)
set_vol = 0;
else if (set_vol > pmax)
set_vol = pmax;
set_vol = (vol->left + pmin) / f_multi + 0.5;
//setting channels
if ((err = snd_mixer_selem_set_playback_volume(elem, 0, set_vol)) < 0) {
@ -170,23 +164,25 @@ static int control(int cmd, void *arg)
snd_strerror(err));
return CONTROL_ERROR;
}
mp_msg(MSGT_AO,MSGL_DBG2,"left=%li, ", set_vol);
set_vol = (vol->right + pmin) / f_multi + 0.5;
if ((err = snd_mixer_selem_set_playback_volume(elem, 1, set_vol)) < 0) {
mp_msg(MSGT_AO,MSGL_ERR,"alsa-control: error setting right channel, %s\n",
snd_strerror(err));
return CONTROL_ERROR;
}
mp_msg(MSGT_AO,MSGL_DBG2,"diff=%f, set_vol=%li, pmax=%li, mult=%f\n",
diff, set_vol, pmax, f_multi);
mp_msg(MSGT_AO,MSGL_DBG2,"right=%li, pmin=%li, pmax=%li, mult=%f\n",
set_vol, pmin, pmax, f_multi);
}
else {
snd_mixer_selem_get_playback_volume(elem, 0, &get_vol);
calc_vol = get_vol;
calc_vol = rintf(calc_vol * f_multi);
vol->left = (get_vol * f_multi) - pmin;
snd_mixer_selem_get_playback_volume(elem, 1, &get_vol);
vol->right = (get_vol * f_multi) - pmin;
vol->left = vol->right = (int)calc_vol;
mp_msg(MSGT_AO,MSGL_DBG2,"get_vol = %li, calc=%f\n",get_vol, calc_vol);
mp_msg(MSGT_AO,MSGL_DBG2,"left=%f, right=%f\n",vol->left,vol->right);
}
snd_mixer_close(handle);
return CONTROL_OK;
@ -197,6 +193,30 @@ static int control(int cmd, void *arg)
return(CONTROL_UNKNOWN);
}
static void parse_device (char *dest, char *src, int len)
{
char *tmp;
strncpy (dest, src, len);
while ((tmp = strrchr(dest, '.')))
tmp[0] = ',';
while ((tmp = strrchr(dest, '#')))
tmp[0] = ':';
}
static void print_help ()
{
mp_msg (MSGT_AO, MSGL_FATAL,
"\n-ao alsa commandline help:\n"
"Example: mplayer -ao alsa:mmap:device=hw#0.3\n"
" sets mmap-mode and first card fourth device\n"
"\nOptions:\n"
" mmap\n"
" Set memory-mapped mode, experimental\n"
" noblock\n"
" Sets non-blocking mode\n"
" device=<device-name>\n"
" Sets device (change , to . and : to #)\n");
}
/*
open & setup audio device
@ -206,7 +226,6 @@ static int init(int rate_hz, int channels, int format, int flags)
{
int err;
int cards = -1;
int period_val;
snd_pcm_info_t *alsa_info;
char *str_block_mode;
int device_set = 0;
@ -284,6 +303,8 @@ static int init(int rate_hz, int channels, int format, int flags)
break;
case SND_PCM_FORMAT_S16_LE:
case SND_PCM_FORMAT_U16_LE:
case SND_PCM_FORMAT_S16_BE:
case SND_PCM_FORMAT_U16_BE:
ao_data.bps *= 2;
break;
case SND_PCM_FORMAT_S32_LE:
@ -301,55 +322,38 @@ static int init(int rate_hz, int channels, int format, int flags)
mp_msg(MSGT_AO,MSGL_WARN,"alsa-init: couldn't convert to right format. setting bps to: %d", ao_data.bps);
}
//subdevice parsing
if (ao_subdevice) {
//start parsing ao_subdevice, ugly and not thread safe!
//maybe there's a better way?
int i2 = 1;
int i3 = 0;
char *sub_str;
char *token_str[3];
char* test_str = strdup(ao_subdevice);
if ((strcspn(ao_subdevice, ":")) > 0) {
sub_str = strtok(test_str, ":");
*(token_str) = sub_str;
while (((sub_str = strtok(NULL, ":")) != NULL) && (i2 <= 3)) {
*(token_str+i2) = sub_str;
i2 += 1;
}
for (i3=0; i3 <= i2-1; i3++) {
if (strcmp(*(token_str + i3), "mmap") == 0) {
ao_mmap = 1;
}
else if (strcmp(*(token_str+i3), "noblock") == 0) {
ao_noblock = 1;
}
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)) {
char *tmp;
snprintf(alsa_device, ALSA_DEVICE_SIZE, "hw:%s", *(token_str+(i3+1)));
if ((tmp = strrchr(alsa_device, '.')) && isdigit(*(tmp+1)))
*tmp = ',';
device_set = 1;
}
else {
strncpy (alsa_device, token_str[i3], ALSA_DEVICE_SIZE);
device_set = 1;
}
}
else if (device_set == 0 && (!ao_mmap || !ao_noblock)) {
strncpy (alsa_device, token_str[i3], ALSA_DEVICE_SIZE);
device_set = 1;
}
}
int parse_err = 0;
char *parse_pos = &ao_subdevice[0];
while (parse_pos[0] && !parse_err) {
if (strncmp (parse_pos, "mmap", 4) == 0) {
parse_pos = &parse_pos[4];
ao_mmap = 1;
} else if (strncmp (parse_pos, "noblock", 7) == 0) {
parse_pos = &parse_pos[7];
ao_noblock = 1;
} else if (strncmp (parse_pos, "device=", 7) == 0) {
int name_len;
parse_pos = &parse_pos[7];
name_len = strcspn (parse_pos, ":");
if (name_len < 0 || name_len > ALSA_DEVICE_SIZE) {
parse_err = 1;
break;
}
parse_device (alsa_device, parse_pos, name_len);
parse_pos = &parse_pos[name_len];
device_set = 1;
}
if (parse_pos[0] == ':') parse_pos = &parse_pos[1];
else if (parse_pos[0]) parse_err = 1;
}
if (parse_err) {
print_help();
return 0;
}
} else { //end parsing ao_subdevice
/* in any case for multichannel playback we should select
* appropriate device
*/
@ -449,14 +453,6 @@ static int init(int rate_hz, int channels, int format, int flags)
}
mp_msg(MSGT_AO,MSGL_INFO,"alsa-init: %d soundcard%s found, using: %s\n", cards+1,(cards >= 0) ? "" : "s", alsa_device);
} else if (strcmp(alsa_device, "help") == 0) {
printf("alsa-help: available options are:\n");
printf(" mmap: sets mmap-mode\n");
printf(" noblock: sets noblock-mode\n");
printf(" device-name: sets device name (change comma to point)\n");
printf(" example -ao alsa9:mmap:noblock:hw:0.3 sets noblock-mode,\n");
printf(" mmap-mode and the device-name as first card fourth device\n");
return(0);
} else {
mp_msg(MSGT_AO,MSGL_INFO,"alsa-init: soundcard set to %s\n", alsa_device);
}
@ -942,7 +938,7 @@ static int play_normal(void* data, int len)
mp_msg(MSGT_AO,MSGL_ERR,"alsa-play: write error %s", snd_strerror(res));
return 0;
}
return res < 0 ? (int)res : len - len % bytes_per_sample;
return len - len % bytes_per_sample;
}
/* mmap-mode mainly based on descriptions by Joshua Haberman <joshua@haberman.com>
@ -955,7 +951,7 @@ static int play_mmap(void* data, int len)
snd_pcm_uframes_t frames_transmit, size, offset;
const snd_pcm_channel_area_t *area;
void *outbuffer;
int err, result;
int result;
#ifdef USE_POLL //seems not really be needed
struct pollfd *ufds;
@ -1073,15 +1069,15 @@ static int get_space()
{
case SND_PCM_STATE_OPEN:
str_status = "open";
ret = snd_pcm_status_get_avail(status) * bytes_per_sample;
break;
case SND_PCM_STATE_PREPARED:
if (str_status != "open") {
str_status = "prepared";
first = 1;
ret = snd_pcm_status_get_avail(status) * bytes_per_sample;
if (ret == 0) //ugly workaround for hang in mmap-mode
ret = 10;
break;
}
case SND_PCM_STATE_RUNNING:
ret = snd_pcm_status_get_avail(status) * bytes_per_sample;
//avail_frames = snd_pcm_avail_update(alsa_handler) * bytes_per_sample;
@ -1107,7 +1103,7 @@ static int get_space()
}
}
if (str_status != "running")
if (snd_pcm_status_get_state(status) == SND_PCM_STATE_RUNNING)
mp_msg(MSGT_AO,MSGL_V,"alsa-space: free space = %i, status=%i, %s --\n", ret, status, str_status);
if (ret < 0) {