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Can you feel the nas tonight? Can you feel the NAS? hey, I am even better than Elton John at these songs

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Original commit message from CVS:
Can you feel the nas tonight? Can you feel the NAS? hey, I am even better than Elton John at these songs
This commit is contained in:
Christian Schaller 2004-03-08 22:24:47 +00:00
parent 956ab077d5
commit e6fa7133c8
3 changed files with 63 additions and 11 deletions
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6
ChangeLog
View file

@ -4,6 +4,12 @@
* gst-libs/gst/media-info/media-info.c: (gst_media_info_read):
adding mime types, fixing the one-stop function
2004-03-08 Christian Schaller <Uraeus@gnome.org>
* ext/nas/nassink.c and /ext/nas/nassink.h:
More NAS love from Arwed von Merkatz
So lets all sing 'Can you feel the NAS tonight'
2004-03-08 Christian Schaller <Uraeus@gnome.org>
* tools/gst-launch-ext.in:

67
ext/nas/nassink.c
View file

@ -56,13 +56,13 @@ GST_STATIC_PAD_TEMPLATE (
"signed = (boolean) TRUE, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) [ 8000, 96000 ], "
"rate = (int) [ 1000, 96000 ], "
"channels = (int) [ 1, 2 ]; "
"audio/x-raw-int, "
"signed = (boolean) FALSE, "
"width = (int) 8, "
"depth = (int) 8, "
"rate = (int) [ 8000, 96000 ], "
"rate = (int) [ 1000, 96000 ], "
"channels = (int) [ 1, 2 ]"
)
);
@ -74,6 +74,7 @@ static void gst_nassink_init (GstNassink *nassink);
static gboolean gst_nassink_open_audio (GstNassink *sink);
static void gst_nassink_close_audio (GstNassink *sink);
static GstElementStateReturn gst_nassink_change_state (GstElement *element);
static GstCaps* gst_nassink_getcaps (GstPad *pad);
static gboolean gst_nassink_sync_parms (GstNassink *nassink);
static GstPadLinkReturn gst_nassink_sinkconnect (GstPad *pad, const GstCaps *caps);
@ -168,6 +169,7 @@ gst_nassink_init(GstNassink *nassink)
gst_element_add_pad(GST_ELEMENT(nassink), nassink->sinkpad);
gst_pad_set_chain_function(nassink->sinkpad, GST_DEBUG_FUNCPTR(gst_nassink_chain));
gst_pad_set_link_function(nassink->sinkpad, gst_nassink_sinkconnect);
gst_pad_set_getcaps_function(nassink->sinkpad, gst_nassink_getcaps);
nassink->mute = FALSE;
nassink->depth = 16;
@ -184,6 +186,31 @@ gst_nassink_init(GstNassink *nassink)
nassink->buf = NULL;
}
static GstCaps*
gst_nassink_getcaps (GstPad *pad)
{
GstNassink *nassink = GST_NASSINK(gst_pad_get_parent(pad));
GstCaps *templatecaps = gst_caps_copy(gst_pad_get_pad_template_caps(pad));
GstCaps *caps;
int i;
AuServer *server;
server = AuOpenServer(nassink->host, 0, NULL, 0, NULL, NULL);
if (!server)
return templatecaps;
for (i = 0; i < gst_caps_get_size (templatecaps); i++) {
GstStructure *structure = gst_caps_get_structure (templatecaps, i);
gst_structure_set (structure, "rate", GST_TYPE_INT_RANGE, AuServerMinSampleRate(server), AuServerMaxSampleRate(server), NULL);
}
caps = gst_caps_intersect(templatecaps, gst_pad_get_pad_template_caps(pad));
gst_caps_free(templatecaps);
return caps;
}
static gboolean
gst_nassink_sync_parms (GstNassink *nassink)
{
@ -373,6 +400,11 @@ gst_nassink_open_audio (GstNassink *sink)
sink->audio = AuOpenServer(sink->host, 0, NULL, 0, NULL, NULL);
if (sink->audio == NULL)
return FALSE;
sink->device = NAS_getDevice(sink->audio, sink->tracks);
if (sink->device == AuNone) {
GST_CAT_DEBUG(NAS,"no device with %i tracks found", sink->tracks);
return FALSE;
}
sink->flow = AuNone;
sink->size = 0;
@ -583,17 +615,9 @@ NAS_allocBuffer(GstNassink *sink)
static int
NAS_createFlow(GstNassink *sink, unsigned char format, unsigned short rate, int numTracks)
{
AuDeviceID device;
AuElement elements[2];
AuUint32 buf_samples;
GST_CAT_DEBUG(NAS,"getting device");
device = NAS_getDevice(sink->audio, numTracks);
if (device == AuNone) {
GST_CAT_DEBUG(NAS,"no device found");
return -1;
}
sink->flow = AuGetScratchFlow(sink->audio, NULL);
if (sink->flow == 0) {
GST_CAT_DEBUG(NAS,"couldn't get flow");
@ -621,6 +645,27 @@ NAS_createFlow(GstNassink *sink, unsigned char format, unsigned short rate, int
}
}
/* free old Elements and reconnet to server, needed to change samplerate */
{
AuBool clocked;
int num_elements;
AuStatus status;
AuElement *oldelems;
oldelems = AuGetElements(sink->audio, sink->flow, &clocked, &num_elements, &status);
if (num_elements > 0) {
GST_CAT_DEBUG(NAS,"GetElements status: %i", status);
if (oldelems)
AuFreeElements(sink->audio, num_elements, oldelems);
gst_nassink_close_audio(sink);
gst_nassink_open_audio(sink);
sink->flow = AuGetScratchFlow(sink->audio, NULL);
if (sink->flow == 0) {
GST_CAT_DEBUG(NAS,"couldn't get flow");
return -1;
}
}
}
buf_samples = rate * NAS_SOUND_PORT_DURATION;
@ -638,7 +683,7 @@ NAS_createFlow(GstNassink *sink, unsigned char format, unsigned short rate, int
AuMakeElementExportDevice( &elements[1], /* element */
0, /* input */
device, /* device */
sink->device, /* device */
rate, /* rate */
AuUnlimitedSamples, /* num samples */
0, /* num actions */

1
ext/nas/nassink.h
View file

@ -64,6 +64,7 @@ struct _GstNassink {
AuServer *audio;
AuFlowID flow;
AuDeviceID device;
/* buffer */