mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-12-31 20:19:52 +01:00
Removed card type from devices info. Added card number to devices info. Completed encapsulation of PCM API. Removed snd_pcm_card(). All copy functions now have the form copy(dst, src).
This commit is contained in:
Abramo Bagnara
parent
6f4c05c64a
commit
a2426856b3
1 changed files with 60 additions and 56 deletions
116
aplay/aplay.c
116
aplay/aplay.c
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@ -60,7 +60,6 @@ static snd_pcm_sframes_t (*writen_func)(snd_pcm_t *handle, void **bufs, snd_pcm_
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static char *command;
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static snd_pcm_t *handle;
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static snd_pcm_info_t info;
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static struct {
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unsigned int format;
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unsigned int channels;
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@ -175,7 +174,8 @@ static void device_list(void)
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snd_ctl_t *handle;
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int card, err, dev, idx;
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snd_ctl_hw_info_t info;
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snd_pcm_info_t pcminfo;
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snd_pcm_info_t *pcminfo;
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snd_pcm_info_alloca(&pcminfo);
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card = -1;
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if (snd_card_next(&card) < 0 || card < 0) {
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@ -196,32 +196,32 @@ static void device_list(void)
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}
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dev = -1;
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while (1) {
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unsigned int count;
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if (snd_ctl_pcm_next_device(handle, &dev)<0)
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error("snd_ctl_pcm_next_device");
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if (dev < 0)
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break;
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pcminfo.device = dev;
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pcminfo.stream = -stream - 1;
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pcminfo.subdevice = 0;
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if ((err = snd_ctl_pcm_info(handle, &pcminfo)) < 0) {
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error("control digital audio info (%i): %s", card, snd_strerror(err));
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snd_pcm_info_set_device(pcminfo, dev);
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snd_pcm_info_set_subdevice(pcminfo, 0);
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snd_pcm_info_set_stream(pcminfo, stream);
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if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
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if (err != -ENOENT)
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error("control digital audio info (%i): %s", card, snd_strerror(err));
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continue;
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}
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if (pcminfo.stream != stream)
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continue;
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fprintf(stderr, "%s: %i [%s] / #%i: %s\n",
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info.name,
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card + 1,
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info.id,
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dev,
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pcminfo.name);
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fprintf(stderr, " Subdevices: %i/%i\n", pcminfo.subdevices_avail, pcminfo.subdevices_count);
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for (idx = 0; idx < pcminfo.subdevices_count; idx++) {
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pcminfo.subdevice = idx;
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if ((err = snd_ctl_pcm_info(handle, &pcminfo)) < 0) {
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fprintf(stderr, "card %i: %s [%s], device %i: %s [%s]\n",
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card, info.id, info.name,
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dev,
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snd_pcm_info_device_id(pcminfo),
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snd_pcm_info_device_name(pcminfo));
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count = snd_pcm_info_subdevices_count(pcminfo);
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fprintf(stderr, " Subdevices: %i/%i\n", snd_pcm_info_subdevices_avail(pcminfo), count);
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for (idx = 0; idx < count; idx++) {
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snd_pcm_info_set_subdevice(pcminfo, idx);
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if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
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error("control digital audio playback info (%i): %s", card, snd_strerror(err));
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} else {
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fprintf(stderr, " Subdevice #%i: %s\n", idx, pcminfo.subname);
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fprintf(stderr, " Subdevice #%i: %s\n", idx, snd_pcm_info_subdevice_name(pcminfo));
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}
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}
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}
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@ -289,6 +289,7 @@ int main(int argc, char *argv[])
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};
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char *pcm_name = "plug:0,0";
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int tmp, err, c;
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snd_pcm_info_t *info;
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err = snd_output_stdio_attach(&log, stderr, 0);
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assert(err >= 0);
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@ -439,8 +440,8 @@ int main(int argc, char *argv[])
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return 1;
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}
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memset(&info, 0, sizeof(info));
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if ((err = snd_pcm_info(handle, &info)) < 0) {
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snd_pcm_info_alloca(&info);
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if ((err = snd_pcm_info(handle, info)) < 0) {
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error("info error: %s", snd_strerror(err));
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return 1;
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}
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@ -453,10 +454,10 @@ int main(int argc, char *argv[])
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memset(&ctl, 0, sizeof(ctl));
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ctl.id.numid = 0;
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ctl.id.iface = SND_CONTROL_IFACE_PCM;
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ctl.id.device = info.device;
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ctl.id.subdevice = info.subdevice;
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ctl.id.device = snd_pcm_info_device(info);
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ctl.id.subdevice = snd_pcm_info_subdevice(info);
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strcpy(ctl.id.name, "IEC958 (S/PDIF) Stream");
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ctl_card = snd_pcm_card(handle);
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ctl_card = snd_pcm_info_card(info);
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if (ctl_card < 0) {
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error("Unable to setup the IEC958 (S/PDIF) interface - PCM has no assigned card");
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goto __diga_end;
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@ -716,13 +717,15 @@ static int test_au(int fd, void *buffer)
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static void set_params(void)
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{
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snd_pcm_hw_params_t params;
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snd_pcm_sw_params_t swparams;
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snd_pcm_hw_params_t *params;
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snd_pcm_sw_params_t *swparams;
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size_t buffer_size;
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int err;
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size_t n;
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size_t xfer_align;
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err = snd_pcm_hw_params_any(handle, ¶ms);
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snd_pcm_hw_params_alloca(¶ms);
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snd_pcm_sw_params_alloca(&swparams);
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err = snd_pcm_hw_params_any(handle, params);
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if (err < 0) {
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error("Broken configuration for this PCM: no configurations available");
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exit(EXIT_FAILURE);
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@ -733,27 +736,27 @@ static void set_params(void)
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snd_mask_set(mask, SND_PCM_ACCESS_MMAP_INTERLEAVED);
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snd_mask_set(mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED);
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snd_mask_set(mask, SND_PCM_ACCESS_MMAP_COMPLEX);
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err = snd_pcm_hw_param_mask(handle, ¶ms,
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err = snd_pcm_hw_param_mask(handle, params,
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SND_PCM_HW_PARAM_ACCESS, mask);
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} else if (interleaved)
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err = snd_pcm_hw_param_set(handle, ¶ms,
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err = snd_pcm_hw_param_set(handle, params,
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SND_PCM_HW_PARAM_ACCESS,
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SND_PCM_ACCESS_RW_INTERLEAVED, 0);
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else
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err = snd_pcm_hw_param_set(handle, ¶ms,
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err = snd_pcm_hw_param_set(handle, params,
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SND_PCM_HW_PARAM_ACCESS,
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SND_PCM_ACCESS_RW_NONINTERLEAVED, 0);
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if (err < 0) {
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error("Access type not available");
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exit(EXIT_FAILURE);
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}
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err = snd_pcm_hw_param_set(handle, ¶ms, SND_PCM_HW_PARAM_FORMAT,
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err = snd_pcm_hw_param_set(handle, params, SND_PCM_HW_PARAM_FORMAT,
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hwparams.format, 0);
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if (err < 0) {
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error("Sample format non available");
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exit(EXIT_FAILURE);
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}
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err = snd_pcm_hw_param_set(handle, ¶ms, SND_PCM_HW_PARAM_CHANNELS,
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err = snd_pcm_hw_param_set(handle, params, SND_PCM_HW_PARAM_CHANNELS,
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hwparams.channels, 0);
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if (err < 0) {
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error("Channels count non available");
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@ -761,53 +764,53 @@ static void set_params(void)
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}
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#if 0
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err = snd_pcm_hw_param_min(handle, ¶ms,
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err = snd_pcm_hw_param_min(handle, params,
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SND_PCM_HW_PARAM_PERIODS, 2);
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assert(err >= 0);
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#endif
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err = snd_pcm_hw_param_near(handle, ¶ms,
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err = snd_pcm_hw_param_near(handle, params,
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SND_PCM_HW_PARAM_RATE, hwparams.rate, 0);
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assert(err >= 0);
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if (buffer_time < 0)
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buffer_time = 500000;
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buffer_time = snd_pcm_hw_param_near(handle, ¶ms,
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buffer_time = snd_pcm_hw_param_near(handle, params,
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SND_PCM_HW_PARAM_BUFFER_TIME,
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buffer_time, 0);
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assert(buffer_time >= 0);
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if (period_time < 0)
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period_time = buffer_time / 4;
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period_time = snd_pcm_hw_param_near(handle, ¶ms,
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period_time = snd_pcm_hw_param_near(handle, params,
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SND_PCM_HW_PARAM_PERIOD_TIME,
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period_time, 0);
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assert(period_time >= 0);
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err = snd_pcm_hw_params(handle, ¶ms);
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err = snd_pcm_hw_params(handle, params);
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if (err < 0) {
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fprintf(stderr, "Unable to install hw params:\n");
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snd_pcm_hw_params_dump(¶ms, log);
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snd_pcm_hw_params_dump(params, log);
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exit(EXIT_FAILURE);
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}
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chunk_size = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_PERIOD_SIZE, 0);
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buffer_size = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_BUFFER_SIZE, 0);
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snd_pcm_sw_params_current(handle, &swparams);
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xfer_align = snd_pcm_sw_param_value(&swparams, SND_PCM_SW_PARAM_XFER_ALIGN);
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chunk_size = snd_pcm_hw_param_value(params, SND_PCM_HW_PARAM_PERIOD_SIZE, 0);
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buffer_size = snd_pcm_hw_param_value(params, SND_PCM_HW_PARAM_BUFFER_SIZE, 0);
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snd_pcm_sw_params_current(handle, swparams);
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xfer_align = snd_pcm_sw_param_value(swparams, SND_PCM_SW_PARAM_XFER_ALIGN);
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if (sleep_min)
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xfer_align = 1;
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err = snd_pcm_sw_param_set(handle, &swparams,
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err = snd_pcm_sw_param_set(handle, swparams,
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SND_PCM_SW_PARAM_SLEEP_MIN, sleep_min);
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assert(err >= 0);
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if (avail_min < 0)
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n = chunk_size;
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else
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n = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_RATE, 0) * (double) avail_min / 1000000;
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err = snd_pcm_sw_param_near(handle, &swparams,
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n = snd_pcm_hw_param_value(params, SND_PCM_HW_PARAM_RATE, 0) * (double) avail_min / 1000000;
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err = snd_pcm_sw_param_near(handle, swparams,
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SND_PCM_SW_PARAM_AVAIL_MIN, n);
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err = snd_pcm_sw_param_near(handle, &swparams,
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err = snd_pcm_sw_param_near(handle, swparams,
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SND_PCM_SW_PARAM_XFER_ALIGN, xfer_align);
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assert(err >= 0);
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if (snd_pcm_sw_params(handle, &swparams) < 0) {
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if (snd_pcm_sw_params(handle, swparams) < 0) {
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error("unable to install sw params:");
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snd_pcm_sw_params_dump(&swparams, log);
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snd_pcm_sw_params_dump(swparams, log);
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exit(EXIT_FAILURE);
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}
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if (snd_pcm_prepare(handle) < 0) {
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@ -833,22 +836,23 @@ static void set_params(void)
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void xrun(void)
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{
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snd_pcm_status_t status;
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snd_pcm_status_t *status;
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int res;
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memset(&status, 0, sizeof(status));
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if ((res = snd_pcm_status(handle, &status))<0) {
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snd_pcm_status_alloca(&status);
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if ((res = snd_pcm_status(handle, status))<0) {
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error("status error: %s", snd_strerror(res));
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exit(EXIT_FAILURE);
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}
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if (status.state == SND_PCM_STATE_XRUN) {
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struct timeval now, diff;
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if (snd_pcm_status_state(status) == SND_PCM_STATE_XRUN) {
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struct timeval now, diff, tstamp;
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gettimeofday(&now, 0);
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timersub(&now, &status.trigger_time, &diff);
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snd_pcm_status_trigger_tstamp(status, &tstamp);
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timersub(&now, &tstamp, &diff);
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fprintf(stderr, "xrun!!! (at least %.3f ms long)\n", diff.tv_sec * 1000 + diff.tv_usec / 1000.0);
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if (verbose) {
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fprintf(stderr, "Status:\n");
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snd_pcm_status_dump(&status, log);
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snd_pcm_status_dump(status, log);
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}
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if ((res = snd_pcm_prepare(handle))<0) {
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error("xrun: prepare error: %s", snd_strerror(res));
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