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remove weird thing code set caps on src pad as soon as card is opened

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Original commit message from CVS:
remove weird thing code
set caps on src pad as soon as card is opened
This commit is contained in:
Thomas Vander Stichele 2002-02-20 16:23:56 +00:00
parent 7813a24e3f
commit 7858bbc88a
1 changed files with 32 additions and 14 deletions
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46
sys/oss/gstosssrc.c
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@ -29,8 +29,6 @@
#include <gstosssrc.h> #include <gstosssrc.h>
//#define WEIRD_THING /* show the weird thing with 44100 KHz rec */
static GstElementDetails gst_osssrc_details = { static GstElementDetails gst_osssrc_details = {
"Audio Source (OSS)", "Audio Source (OSS)",
"Source/Audio", "Source/Audio",
@ -306,6 +304,9 @@ gst_osssrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSp
static GstElementStateReturn static GstElementStateReturn
gst_osssrc_change_state (GstElement *element) gst_osssrc_change_state (GstElement *element)
{ {
GstPad *pad = NULL;
GstOssSrc *src = GST_OSSSRC (element);
g_return_val_if_fail (GST_IS_OSSSRC (element), FALSE); g_return_val_if_fail (GST_IS_OSSSRC (element), FALSE);
GST_DEBUG (0, "osssrc: state change\n"); GST_DEBUG (0, "osssrc: state change\n");
/* if going down into NULL state, close the file if it's open */ /* if going down into NULL state, close the file if it's open */
@ -319,6 +320,31 @@ gst_osssrc_change_state (GstElement *element)
if (!GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN)) { if (!GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN)) {
if (!gst_osssrc_open_audio (GST_OSSSRC (element))) if (!gst_osssrc_open_audio (GST_OSSSRC (element)))
return GST_STATE_FAILURE; return GST_STATE_FAILURE;
else
{
/* set the caps here instead of after first iteration */
pad = gst_element_get_pad (element, "src");
if (! (GST_PAD_CAPS (pad)))
{
/* set caps on src pad */
if (!gst_pad_try_set_caps (pad,
GST_CAPS_NEW (
"oss_src",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0), //FIXME
"endianness", GST_PROPS_INT (G_BYTE_ORDER), //FIXME
"signed", GST_PROPS_BOOLEAN (TRUE), //FIXME
"width", GST_PROPS_INT (src->format),
"depth", GST_PROPS_INT (src->format),
"rate", GST_PROPS_INT (src->frequency),
"channels", GST_PROPS_INT (src->channels)
)))
{
gst_element_error (GST_ELEMENT (element), "could not set caps");
}
}
}
} }
} }
@ -366,9 +392,10 @@ gst_osssrc_sync_parms (GstOssSrc *osssrc)
{ {
audio_buf_info ispace; audio_buf_info ispace;
gint frag; gint frag;
/* hack : ioctl on frequency seems to *change* the frequency /* remember : ioctl on samplerate returns the sample rate the card
maybe this is right, but at least for 44100 Khz, it * is actually set to ! Setting it to 44101 KHz could cause it to
gives unexpected results ! */ * be set to 44101, for example
*/
guint frequency; guint frequency;
@ -385,18 +412,9 @@ gst_osssrc_sync_parms (GstOssSrc *osssrc)
ioctl(osssrc->fd, SNDCTL_DSP_SETFMT, &osssrc->format); ioctl(osssrc->fd, SNDCTL_DSP_SETFMT, &osssrc->format);
ioctl(osssrc->fd, SNDCTL_DSP_CHANNELS, &osssrc->channels); ioctl(osssrc->fd, SNDCTL_DSP_CHANNELS, &osssrc->channels);
#ifdef WEIRD_THING
g_print ("DEBUG: do you want to see A Weird Thing (TM) ?\n");
g_print ("DEBUG: then set osssrc to a 44100 frequency and check these numbers.\n");
g_print ("DEBUG: osssrc frequency before ioctl: %d\n", osssrc->frequency);
#endif
ioctl(osssrc->fd, SNDCTL_DSP_SPEED, &osssrc->frequency); ioctl(osssrc->fd, SNDCTL_DSP_SPEED, &osssrc->frequency);
#ifdef WEIRD_THING
g_print ("DEBUG: osssrc frequency after ioctl : %d\n", osssrc->frequency);
g_print ("DEBUG: redoing ioctl using a temp variable, and resetting osssrc->frequency\n");
osssrc->frequency = frequency; osssrc->frequency = frequency;
ioctl(osssrc->fd, SNDCTL_DSP_SPEED, &frequency); ioctl(osssrc->fd, SNDCTL_DSP_SPEED, &frequency);
#endif
ioctl(osssrc->fd, SNDCTL_DSP_GETISPACE, &ispace); ioctl(osssrc->fd, SNDCTL_DSP_GETISPACE, &ispace);
ioctl(osssrc->fd, SNDCTL_DSP_GETBLKSIZE, &frag); ioctl(osssrc->fd, SNDCTL_DSP_GETBLKSIZE, &frag);