diff --git a/alsaaudio.c b/alsaaudio.c index ab961be..61f68ac 100644 --- a/alsaaudio.c +++ b/alsaaudio.c @@ -602,9 +602,6 @@ alsapcm_dumpinfo(alsapcm_t *self, PyObject *args) val = snd_pcm_hw_params_get_sbits(hwparams); printf("significant bits = %d\n", val); - snd_pcm_hw_params_get_period_time(hwparams, &val, &dir); - printf("period time = %d us\n", val); - val = snd_pcm_hw_params_is_batch(hwparams); printf("is batch = %d\n", val); @@ -640,6 +637,196 @@ alsapcm_dumpinfo(alsapcm_t *self, PyObject *args) } +static PyObject * +alsapcm_info(alsapcm_t *self, PyObject *args) +{ + PyObject *info; + PyObject *value; + + unsigned int val,val2; + snd_pcm_format_t fmt; + int dir; + snd_pcm_uframes_t frames; + snd_pcm_hw_params_t *hwparams; + snd_pcm_hw_params_alloca(&hwparams); + snd_pcm_hw_params_current(self->handle,hwparams); + + if (!PyArg_ParseTuple(args,":dumpinfo")) + return NULL; + + if (!self->handle) { + PyErr_SetString(ALSAAudioError, "PCM device is closed"); + return NULL; + } + + info = PyDict_New(); + + value=PyUnicode_FromString(snd_pcm_name(self->handle)); + PyDict_SetItemString(info,"name",value); + Py_DECREF(value); + + value=PyUnicode_FromString(snd_pcm_state_name(snd_pcm_state(self->handle))); + PyDict_SetItemString(info,"state",value); + Py_DECREF(value); + + snd_pcm_hw_params_get_access(hwparams, (snd_pcm_access_t *) &val); + value=PyUnicode_FromString(snd_pcm_access_name((snd_pcm_access_t)val)); + PyDict_SetItemString(info,"access_type",value); + Py_DECREF(value); + + value = PyLong_FromUnsignedLong((unsigned long) self->pcmtype); + PyDict_SetItemString(info," (call value) type",value); + Py_DECREF(value); + value=PyUnicode_FromString(snd_pcm_stream_name((snd_pcm_stream_t) self->pcmtype)); + PyDict_SetItemString(info," (call value) type_name",value); + Py_DECREF(value); + + value = PyLong_FromUnsignedLong((unsigned long) self->pcmmode); + PyDict_SetItemString(info," (call value) mode",value); + Py_DECREF(value); + switch(self->pcmmode){ + case 0: + value = PyUnicode_FromString("PCM_NORMAL"); + break; + case SND_PCM_NONBLOCK: + value = PyUnicode_FromString("PCM_NONBLOCK"); + break; + case SND_PCM_ASYNC: + value = PyUnicode_FromString("PCM_ASYNC"); + break; + } + PyDict_SetItemString(info," (call value) mode_name",value); + Py_DECREF(value); + + snd_pcm_hw_params_get_format(hwparams, &fmt); + value=PyLong_FromUnsignedLong((unsigned long)fmt); + PyDict_SetItemString(info,"format",value); + Py_DECREF(value); + value=PyUnicode_FromString(snd_pcm_format_name(fmt)); + PyDict_SetItemString(info,"format_name",value); + Py_DECREF(value); + value=PyUnicode_FromString(snd_pcm_format_description(fmt)); + PyDict_SetItemString(info,"format_description",value); + Py_DECREF(value); + + + snd_pcm_hw_params_get_subformat(hwparams, (snd_pcm_subformat_t *)&val); + value=PyUnicode_FromString(snd_pcm_subformat_name((snd_pcm_subformat_t)val)); + PyDict_SetItemString(info,"subformat_name",value); + Py_DECREF(value); + value=PyUnicode_FromString(snd_pcm_subformat_description((snd_pcm_subformat_t)val)); + PyDict_SetItemString(info,"subformat_description",value); + Py_DECREF(value); + + snd_pcm_hw_params_get_channels(hwparams, &val); + value=PyLong_FromUnsignedLong((unsigned long) val); + PyDict_SetItemString(info,"channels", value); + Py_DECREF(value); + + snd_pcm_hw_params_get_rate(hwparams, &val, &dir); + value=PyLong_FromUnsignedLong((unsigned long) val); + PyDict_SetItemString(info,"rate", value); + Py_DECREF(value); + + snd_pcm_hw_params_get_period_time(hwparams, &val, &dir); + value=PyLong_FromUnsignedLong((unsigned long) val); + PyDict_SetItemString(info,"period_time", value); + Py_DECREF(value); + + snd_pcm_hw_params_get_period_size(hwparams, &frames, &dir); + value=PyLong_FromUnsignedLong((unsigned long) frames); + PyDict_SetItemString(info,"period_size", value); + Py_DECREF(value); + + snd_pcm_hw_params_get_buffer_time(hwparams, &val, &dir); + value=PyLong_FromUnsignedLong((unsigned long) val); + PyDict_SetItemString(info,"buffer_time", value); + Py_DECREF(value); + + snd_pcm_hw_params_get_buffer_size(hwparams, (snd_pcm_uframes_t *) &val); + value=PyLong_FromUnsignedLong((unsigned long) val); + PyDict_SetItemString(info,"buffer_size", value); + Py_DECREF(value); + + snd_pcm_hw_params_get_periods(hwparams, &val, &dir); + value=PyLong_FromUnsignedLong((unsigned long) val); + PyDict_SetItemString(info,"get_periods", value); + Py_DECREF(value); + + snd_pcm_hw_params_get_rate_numden(hwparams, &val, &val2); + value=PyTuple_Pack(2,PyLong_FromUnsignedLong((unsigned long) val) \ + ,PyLong_FromUnsignedLong((unsigned long) val2)); + PyDict_SetItemString(info,"rate_numden", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_get_sbits(hwparams); + value=PyLong_FromUnsignedLong((unsigned long) val); + PyDict_SetItemString(info,"significant_bits", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_is_batch(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"is_batch", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_is_block_transfer(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"is_block_transfer", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_is_double(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"is_double", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_is_half_duplex(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"is_half_duplex", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_is_joint_duplex(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"is_joint_duplex", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_can_overrange(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"can_overrange", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_can_mmap_sample_resolution(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"can_mmap_sample_resolution", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_can_pause(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"can_pause", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_can_resume(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"can_resume", value); + Py_DECREF(value); + + val = snd_pcm_hw_params_can_sync_start(hwparams); + value=PyBool_FromLong((unsigned long) val); + PyDict_SetItemString(info,"can_sync_start", value); + Py_DECREF(value); + + return info; +} + + +PyDoc_STRVAR(pcm_info_doc, +"info() -> dict\n\ +\n\ +Returns a dictionary with the alsa device parameters as it is realized. \n\ +Keys are retrieved from the alsa library if they can be accessed, if not \n\ +they represent values stored by pyalsaaudio and they are prefixed with ' (call value) '. \n\ +"); + + static PyObject * alsapcm_htimestamp(alsapcm_t *self, PyObject *args) { @@ -1404,6 +1591,7 @@ static PyMethodDef alsapcm_methods[] = { {"htimestamp", (PyCFunction) alsapcm_htimestamp, METH_VARARGS, pcm_htimestamp_doc}, {"dumpinfo", (PyCFunction)alsapcm_dumpinfo, METH_VARARGS}, + {"info", (PyCFunction)alsapcm_info, METH_VARARGS, pcm_info_doc}, {"getformats", (PyCFunction)alsapcm_getformats, METH_VARARGS, getformats_doc}, {"getratebounds", (PyCFunction)alsapcm_getratemaxmin, METH_VARARGS, getratebounds_doc}, {"getrates", (PyCFunction)alsapcm_getrates, METH_VARARGS, getrates_doc},