static guint
gst_dshowaudiosrc_read (GstAudioSrc * asrc, gpointer data, guint length)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
guint ret = 0;
if (!src->is_running)
return -1;
if (src->gbarray) {
test:
if (src->gbarray->len >= length) {
g_mutex_lock (src->gbarray_lock);
memcpy (data, src->gbarray->data + (src->gbarray->len - length), length);
g_byte_array_remove_range (src->gbarray, src->gbarray->len - length,
length);
ret = length;
g_mutex_unlock (src->gbarray_lock);
} else {
if (src->is_running) {
Sleep (100);
goto test;
}
}
}
return ret;
}
static void
gst_dshowaudiosrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (object);
switch (prop_id) {
case PROP_DEVICE:
{
if (src->device) {
g_free (src->device);
src->device = NULL;
}
if (g_value_get_string (value)) {
src->device = g_strdup (g_value_get_string (value));
}
break;
}
case PROP_DEVICE_NAME:
{
if (src->device_name) {
g_free (src->device_name);
src->device_name = NULL;
}
if (g_value_get_string (value)) {
src->device_name = g_strdup (g_value_get_string (value));
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static guint
gst_dshowaudiosrc_read (GstAudioSrc * asrc, gpointer data, guint length, GstClockTime *timestamp)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
guint ret = 0;
if (!src->is_running)
return -1;
if (src->gbarray) {
test:
if (src->gbarray->len >= length) {
g_mutex_lock (&src->gbarray_lock);
memcpy (data, src->gbarray->data + (src->gbarray->len - length), length);
g_byte_array_remove_range (src->gbarray, src->gbarray->len - length,
length);
ret = length;
g_mutex_unlock (&src->gbarray_lock);
} else {
if (src->is_running) {
Sleep (GST_AUDIO_BASE_SRC(src)->ringbuffer->spec.latency_time /
GST_MSECOND / 10);
goto test;
}
}
}
return ret;
}
static gboolean
gst_dshowaudiosrc_close (GstAudioSrc * asrc)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
if (!src->filter_graph)
return TRUE;
/*remove filters from the graph */
IFilterGraph_RemoveFilter (src->filter_graph, src->audio_cap_filter);
IFilterGraph_RemoveFilter (src->filter_graph, src->dshow_fakesink);
/*release our gstreamer dshow sink */
IBaseFilter_Release (src->dshow_fakesink);
src->dshow_fakesink = NULL;
/*release media filter interface */
IMediaFilter_Release (src->media_filter);
src->media_filter = NULL;
/*release the filter graph manager */
IFilterGraph_Release (src->filter_graph);
src->filter_graph = NULL;
return TRUE;
}
static void
gst_dshowaudiosrc_reset (GstAudioSrc * asrc)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
g_mutex_lock (src->gbarray_lock);
g_byte_array_remove_range (src->gbarray, 0, src->gbarray->len);
g_mutex_unlock (src->gbarray_lock);
}
static guint
gst_dshowaudiosrc_delay (GstAudioSrc * asrc)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
guint ret = 0;
if (src->gbarray) {
g_mutex_lock (src->gbarray_lock);
if (src->gbarray->len) {
ret = src->gbarray->len / 4;
}
g_mutex_unlock (src->gbarray_lock);
}
return ret;
}
static gboolean
gst_dshowaudiosrc_push_buffer (guint8 * buffer, guint size, gpointer src_object,
GstClockTime duration)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (src_object);
if (!buffer || size == 0 || !src) {
return FALSE;
}
g_mutex_lock (src->gbarray_lock);
g_byte_array_prepend (src->gbarray, buffer, size);
g_mutex_unlock (src->gbarray_lock);
return TRUE;
}
static gboolean
gst_dshowaudiosrc_push_buffer (byte * buffer, long size, byte * src_object,
UINT64 start, UINT64 stop)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (src_object);
if (!buffer || size == 0 || !src) {
return FALSE;
}
g_mutex_lock (src->gbarray_lock);
g_byte_array_prepend (src->gbarray, (guint8 *) buffer, size);
g_mutex_unlock (src->gbarray_lock);
return TRUE;
}
static GValueArray *
gst_dshowaudiosrc_probe_get_values (GstPropertyProbe * probe,
guint prop_id, const GParamSpec * pspec)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (probe);
GValueArray *array = NULL;
switch (prop_id) {
case PROP_DEVICE_NAME:
array = gst_dshowaudiosrc_get_device_name_values (src);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
break;
}
return array;
}
static void
gst_dshowaudiosrc_dispose (GObject * gobject)
{
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (gobject);
if (src->device) {
g_free (src->device);
src->device = NULL;
}
if (src->device_name) {
g_free (src->device_name);
src->device_name = NULL;
}
if (src->caps) {
gst_caps_unref (src->caps);
src->caps = NULL;
}
if (src->pins_mediatypes) {
gst_dshow_free_pins_mediatypes (src->pins_mediatypes);
src->pins_mediatypes = NULL;
}
if (src->gbarray) {
g_byte_array_free (src->gbarray, TRUE);
src->gbarray = NULL;
}
if (src->gbarray_lock) {
g_mutex_free (src->gbarray_lock);
src->gbarray_lock = NULL;
}
/* clean dshow */
if (src->audio_cap_filter) {
IBaseFilter_Release (src->audio_cap_filter);
}
CoUninitialize ();
G_OBJECT_CLASS (parent_class)->dispose (gobject);
}
static GstStateChangeReturn
gst_dshowaudiosrc_change_state (GstElement * element, GstStateChange transition)
{
HRESULT hres = S_FALSE;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
if (src->media_filter)
hres = IMediaFilter_Run (src->media_filter, 0);
if (hres != S_OK) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't RUN the directshow capture graph (error=%d)", hres);
src->is_running = FALSE;
return GST_STATE_CHANGE_FAILURE;
} else {
src->is_running = TRUE;
}
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
if (src->media_filter)
hres = IMediaFilter_Stop (src->media_filter);
if (hres != S_OK) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't STOP the directshow capture graph (error=%d)", hres);
return GST_STATE_CHANGE_FAILURE;
}
src->is_running = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
}
static gboolean
gst_dshowaudiosrc_unprepare (GstAudioSrc * asrc)
{
IPin *input_pin = NULL, *output_pin = NULL;
HRESULT hres = S_FALSE;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
/* disconnect filters */
gst_dshow_get_pin_from_filter (src->audio_cap_filter, PINDIR_OUTPUT,
&output_pin);
if (output_pin) {
hres = IFilterGraph_Disconnect (src->filter_graph, output_pin);
IPin_Release (output_pin);
}
gst_dshow_get_pin_from_filter (src->dshow_fakesink, PINDIR_INPUT, &input_pin);
if (input_pin) {
hres = IFilterGraph_Disconnect (src->filter_graph, input_pin);
IPin_Release (input_pin);
}
return TRUE;
}
static GstCaps *
gst_dshowaudiosrc_get_caps (GstBaseSrc * basesrc, GstCaps * filter)
{
HRESULT hres = S_OK;
IBindCtx *lpbc = NULL;
IMoniker *audiom = NULL;
DWORD dwEaten;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (basesrc);
gunichar2 *unidevice = NULL;
if (src->device) {
g_free (src->device);
src->device = NULL;
}
src->device =
gst_dshow_getdevice_from_devicename (&CLSID_AudioInputDeviceCategory,
&src->device_name);
if (!src->device) {
GST_ERROR ("No audio device found.");
return NULL;
}
unidevice =
g_utf8_to_utf16 (src->device, strlen (src->device), NULL, NULL, NULL);
if (!src->audio_cap_filter) {
hres = CreateBindCtx (0, &lpbc);
if (SUCCEEDED (hres)) {
hres =
MkParseDisplayName (lpbc, (LPCOLESTR) unidevice, &dwEaten, &audiom);
if (SUCCEEDED (hres)) {
hres = audiom->BindToObject (lpbc, NULL, IID_IBaseFilter,
(LPVOID *) & src->audio_cap_filter);
audiom->Release ();
}
lpbc->Release ();
}
}
if (src->audio_cap_filter && !src->caps) {
/* get the capture pins supported types */
IPin *capture_pin = NULL;
IEnumPins *enumpins = NULL;
HRESULT hres;
hres = src->audio_cap_filter->EnumPins (&enumpins);
if (SUCCEEDED (hres)) {
while (enumpins->Next (1, &capture_pin, NULL) == S_OK) {
IKsPropertySet *pKs = NULL;
hres =
capture_pin->QueryInterface (IID_IKsPropertySet, (LPVOID *) & pKs);
if (SUCCEEDED (hres) && pKs) {
DWORD cbReturned;
GUID pin_category;
RPC_STATUS rpcstatus;
hres =
pKs->Get (AMPROPSETID_Pin,
AMPROPERTY_PIN_CATEGORY, NULL, 0, &pin_category, sizeof (GUID),
&cbReturned);
/* we only want capture pins */
if (UuidCompare (&pin_category, (UUID *) & PIN_CATEGORY_CAPTURE,
&rpcstatus) == 0) {
IAMStreamConfig *streamcaps = NULL;
if (SUCCEEDED (capture_pin->QueryInterface (IID_IAMStreamConfig,
(LPVOID *) & streamcaps))) {
src->caps =
gst_dshowaudiosrc_getcaps_from_streamcaps (src, capture_pin,
streamcaps);
streamcaps->Release ();
}
}
pKs->Release ();
}
capture_pin->Release ();
}
enumpins->Release ();
}
}
if (unidevice) {
g_free (unidevice);
}
if (src->caps) {
GstCaps *caps;
if (filter) {
caps = gst_caps_intersect_full (filter, src->caps, GST_CAPS_INTERSECT_FIRST);
} else {
caps = gst_caps_ref (src->caps);
}
return caps;
}
return NULL;
}
static gboolean
gst_dshowaudiosrc_open (GstAudioSrc * asrc)
{
HRESULT hres = S_FALSE;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
hres = CoCreateInstance (CLSID_FilterGraph, NULL, CLSCTX_INPROC,
IID_IFilterGraph, (LPVOID *) & src->filter_graph);
if (hres != S_OK || !src->filter_graph) {
GST_ERROR
("Can't create an instance of the directshow graph manager (error=0x%x)",
hres);
goto error;
}
hres =
src->filter_graph->QueryInterface (IID_IMediaFilter,
(LPVOID *) & src->media_filter);
if (hres != S_OK || !src->media_filter) {
GST_ERROR
("Can't get IMediacontrol interface from the graph manager (error=0x%x)",
hres);
goto error;
}
src->dshow_fakesink = new CDshowFakeSink;
src->dshow_fakesink->AddRef ();
hres = src->filter_graph->AddFilter (src->audio_cap_filter, L"capture");
if (hres != S_OK) {
GST_ERROR
("Can't add the directshow capture filter to the graph (error=0x%x)",
hres);
goto error;
}
hres = src->filter_graph->AddFilter (src->dshow_fakesink, L"fakesink");
if (hres != S_OK) {
GST_ERROR ("Can't add our fakesink filter to the graph (error=0x%x)", hres);
goto error;
}
return TRUE;
error:
if (src->dshow_fakesink) {
src->dshow_fakesink->Release ();
src->dshow_fakesink = NULL;
}
if (src->media_filter) {
src->media_filter->Release ();
src->media_filter = NULL;
}
if (src->filter_graph) {
src->filter_graph->Release ();
src->filter_graph = NULL;
}
return FALSE;
}
static GstCaps *
gst_dshowaudiosrc_get_caps (GstBaseSrc * basesrc)
{
HRESULT hres = S_OK;
IBindCtx *lpbc = NULL;
IMoniker *audiom = NULL;
DWORD dwEaten;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (basesrc);
gunichar2 *unidevice = NULL;
if (src->device) {
g_free (src->device);
src->device = NULL;
}
src->device =
gst_dshow_getdevice_from_devicename (&CLSID_AudioInputDeviceCategory,
&src->device_name);
if (!src->device) {
GST_CAT_ERROR (dshowaudiosrc_debug, "No audio device found.");
return NULL;
}
unidevice =
g_utf8_to_utf16 (src->device, strlen (src->device), NULL, NULL, NULL);
if (!src->audio_cap_filter) {
hres = CreateBindCtx (0, &lpbc);
if (SUCCEEDED (hres)) {
hres = MkParseDisplayName (lpbc, unidevice, &dwEaten, &audiom);
if (SUCCEEDED (hres)) {
hres =
IMoniker_BindToObject (audiom, lpbc, NULL, &IID_IBaseFilter,
&src->audio_cap_filter);
IMoniker_Release (audiom);
}
IBindCtx_Release (lpbc);
}
}
if (src->audio_cap_filter && !src->caps) {
/* get the capture pins supported types */
IPin *capture_pin = NULL;
IEnumPins *enumpins = NULL;
HRESULT hres;
hres = IBaseFilter_EnumPins (src->audio_cap_filter, &enumpins);
if (SUCCEEDED (hres)) {
while (IEnumPins_Next (enumpins, 1, &capture_pin, NULL) == S_OK) {
IKsPropertySet *pKs = NULL;
hres =
IPin_QueryInterface (capture_pin, &IID_IKsPropertySet,
(void **) &pKs);
if (SUCCEEDED (hres) && pKs) {
DWORD cbReturned;
GUID pin_category;
RPC_STATUS rpcstatus;
hres =
IKsPropertySet_Get (pKs, &ROPSETID_Pin,
AMPROPERTY_PIN_CATEGORY, NULL, 0, &pin_category, sizeof (GUID),
&cbReturned);
/* we only want capture pins */
if (UuidCompare (&pin_category, &PIN_CATEGORY_CAPTURE,
&rpcstatus) == 0) {
IAMStreamConfig *streamcaps = NULL;
if (SUCCEEDED (IPin_QueryInterface (capture_pin,
&IID_IAMStreamConfig, (void **) &streamcaps))) {
src->caps =
gst_dshowaudiosrc_getcaps_from_streamcaps (src, capture_pin,
streamcaps);
IAMStreamConfig_Release (streamcaps);
}
}
IKsPropertySet_Release (pKs);
}
IPin_Release (capture_pin);
}
IEnumPins_Release (enumpins);
}
}
if (unidevice) {
g_free (unidevice);
}
if (src->caps) {
return gst_caps_ref (src->caps);
}
return NULL;
}
static gboolean
gst_dshowaudiosrc_prepare (GstAudioSrc * asrc, GstAudioRingBufferSpec * spec)
{
HRESULT hres;
IPin *input_pin = NULL;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
GstCaps *current_caps = gst_pad_get_current_caps (GST_BASE_SRC_PAD (asrc));
if (current_caps) {
if (gst_caps_is_equal (spec->caps, current_caps)) {
gst_caps_unref (current_caps);
return TRUE;
}
gst_caps_unref (current_caps);
}
/* In 1.0, prepare() seems to be called in the PLAYING state. Most
of the time you can't do much on a running graph. */
gboolean was_running = src->is_running;
if (was_running) {
HRESULT hres = src->media_filter->Stop ();
if (hres != S_OK) {
GST_ERROR("Can't STOP the directshow capture graph for preparing (error=0x%x)", hres);
return FALSE;
}
src->is_running = FALSE;
}
/* search the negociated caps in our caps list to get its index and the corresponding mediatype */
if (gst_caps_is_subset (spec->caps, src->caps)) {
guint i = 0;
gint res = -1;
for (; i < gst_caps_get_size (src->caps) && res == -1; i++) {
GstCaps *capstmp = gst_caps_copy_nth (src->caps, i);
if (gst_caps_is_subset (spec->caps, capstmp)) {
res = i;
}
gst_caps_unref (capstmp);
}
if (res != -1 && src->pins_mediatypes) {
/*get the corresponding media type and build the dshow graph */
GstCapturePinMediaType *pin_mediatype = NULL;
GList *type = g_list_nth (src->pins_mediatypes, res);
if (type) {
pin_mediatype = (GstCapturePinMediaType *) type->data;
src->dshow_fakesink->gst_set_media_type (pin_mediatype->mediatype);
src->dshow_fakesink->gst_set_buffer_callback (
(push_buffer_func) gst_dshowaudiosrc_push_buffer, src);
gst_dshow_get_pin_from_filter (src->dshow_fakesink, PINDIR_INPUT,
&input_pin);
if (!input_pin) {
GST_ERROR ("Can't get input pin from our directshow fakesink filter");
goto error;
}
spec->segsize = (gint) (spec->info.bpf * spec->info.rate * spec->latency_time /
GST_MSECOND);
spec->segtotal = (gint) ((gfloat) spec->buffer_time /
(gfloat) spec->latency_time + 0.5);
if (!gst_dshow_configure_latency (pin_mediatype->capture_pin,
spec->segsize))
{
GST_WARNING ("Could not change capture latency");
spec->segsize = spec->info.rate * spec->info.channels;
spec->segtotal = 2;
};
GST_INFO ("Configuring with segsize:%d segtotal:%d", spec->segsize, spec->segtotal);
if (gst_dshow_is_pin_connected (pin_mediatype->capture_pin)) {
GST_DEBUG_OBJECT (src,
"capture_pin already connected, disconnecting");
src->filter_graph->Disconnect (pin_mediatype->capture_pin);
}
if (gst_dshow_is_pin_connected (input_pin)) {
GST_DEBUG_OBJECT (src, "input_pin already connected, disconnecting");
src->filter_graph->Disconnect (input_pin);
}
hres = src->filter_graph->ConnectDirect (pin_mediatype->capture_pin,
input_pin, NULL);
input_pin->Release ();
if (hres != S_OK) {
GST_ERROR
("Can't connect capture filter with fakesink filter (error=0x%x)",
hres);
goto error;
}
}
}
}
if (was_running) {
HRESULT hres = src->media_filter->Run (0);
if (hres != S_OK) {
GST_ERROR("Can't RUN the directshow capture graph after prepare (error=0x%x)", hres);
return FALSE;
}
src->is_running = TRUE;
}
return TRUE;
error:
/* Don't restart the graph, we're out anyway. */
return FALSE;
}
static gboolean
gst_dshowaudiosrc_open (GstAudioSrc * asrc)
{
HRESULT hres = S_FALSE;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
hres = CoCreateInstance (&CLSID_FilterGraph, NULL, CLSCTX_INPROC,
&IID_IFilterGraph, (LPVOID *) & src->filter_graph);
if (hres != S_OK || !src->filter_graph) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't create an instance of the directshow graph manager (error=%d)",
hres);
goto error;
}
hres = IFilterGraph_QueryInterface (src->filter_graph, &IID_IMediaFilter,
(void **) &src->media_filter);
if (hres != S_OK || !src->media_filter) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't get IMediacontrol interface from the graph manager (error=%d)",
hres);
goto error;
}
hres = CoCreateInstance (&CLSID_DshowFakeSink, NULL, CLSCTX_INPROC,
&IID_IBaseFilter, (LPVOID *) & src->dshow_fakesink);
if (hres != S_OK || !src->dshow_fakesink) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't create an instance of the directshow fakesink (error=%d)", hres);
goto error;
}
hres =
IFilterGraph_AddFilter (src->filter_graph, src->audio_cap_filter,
L"capture");
if (hres != S_OK) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't add the directshow capture filter to the graph (error=%d)",
hres);
goto error;
}
hres =
IFilterGraph_AddFilter (src->filter_graph, src->dshow_fakesink,
L"fakesink");
if (hres != S_OK) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't add our fakesink filter to the graph (error=%d)", hres);
goto error;
}
return TRUE;
error:
if (src->dshow_fakesink) {
IBaseFilter_Release (src->dshow_fakesink);
src->dshow_fakesink = NULL;
}
if (src->media_filter) {
IMediaFilter_Release (src->media_filter);
src->media_filter = NULL;
}
if (src->filter_graph) {
IFilterGraph_Release (src->filter_graph);
src->filter_graph = NULL;
}
return FALSE;
}
static gboolean
gst_dshowaudiosrc_prepare (GstAudioSrc * asrc, GstRingBufferSpec * spec)
{
HRESULT hres;
IGstDshowInterface *srcinterface = NULL;
IPin *input_pin = NULL;
GstDshowAudioSrc *src = GST_DSHOWAUDIOSRC (asrc);
/* search the negociated caps in our caps list to get its index and the corresponding mediatype */
if (gst_caps_is_subset (spec->caps, src->caps)) {
guint i = 0;
gint res = -1;
for (; i < gst_caps_get_size (src->caps) && res == -1; i++) {
GstCaps *capstmp = gst_caps_copy_nth (src->caps, i);
if (gst_caps_is_subset (spec->caps, capstmp)) {
res = i;
}
gst_caps_unref (capstmp);
}
if (res != -1 && src->pins_mediatypes) {
/*get the corresponding media type and build the dshow graph */
GstCapturePinMediaType *pin_mediatype = NULL;
GList *type = g_list_nth (src->pins_mediatypes, res);
if (type) {
pin_mediatype = (GstCapturePinMediaType *) type->data;
hres =
IBaseFilter_QueryInterface (src->dshow_fakesink,
&IID_IGstDshowInterface, (void **) &srcinterface);
if (hres != S_OK || !srcinterface) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't get IGstDshowInterface interface from our dshow fakesink filter (error=%d)",
hres);
goto error;
}
IGstDshowInterface_gst_set_media_type (srcinterface,
pin_mediatype->mediatype);
IGstDshowInterface_gst_set_buffer_callback (srcinterface,
(byte *) gst_dshowaudiosrc_push_buffer, (byte *) src);
if (srcinterface) {
IGstDshowInterface_Release (srcinterface);
}
gst_dshow_get_pin_from_filter (src->dshow_fakesink, PINDIR_INPUT,
&input_pin);
if (!input_pin) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't get input pin from our directshow fakesink filter");
goto error;
}
hres =
IFilterGraph_ConnectDirect (src->filter_graph,
pin_mediatype->capture_pin, input_pin, NULL);
IPin_Release (input_pin);
if (hres != S_OK) {
GST_CAT_ERROR (dshowaudiosrc_debug,
"Can't connect capture filter with fakesink filter (error=%d)",
hres);
goto error;
}
spec->segsize = spec->rate * spec->channels;
spec->segtotal = 1;
}
}
}
return TRUE;
error:
if (srcinterface) {
IGstDshowInterface_Release (srcinterface);
}
return FALSE;
}