static gboolean
gst_deinterleave_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstDeinterleave *self;
GstCaps *srccaps;
GstStructure *s;
self = GST_DEINTERLEAVE (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (self, "got caps: %" GST_PTR_FORMAT, caps);
if (self->sinkcaps && !gst_caps_is_equal (caps, self->sinkcaps)) {
gint new_channels, i;
GstAudioChannelPosition *pos;
gboolean same_layout = TRUE;
s = gst_caps_get_structure (caps, 0);
/* We allow caps changes as long as the number of channels doesn't change
* and the channel positions stay the same. _getcaps() should've cared
* for this already but better be safe.
*/
if (!gst_structure_get_int (s, "channels", &new_channels) ||
new_channels != self->channels ||
!gst_deinterleave_set_process_function (self, caps))
goto cannot_change_caps;
/* Now check the channel positions. If we had no channel positions
* and get them or the other way around things have changed.
* If we had channel positions and get different ones things have
* changed too of course
*/
pos = gst_audio_get_channel_positions (s);
if ((pos && !self->pos) || (!pos && self->pos))
goto cannot_change_caps;
if (pos) {
for (i = 0; i < self->channels; i++) {
if (self->pos[i] != pos[i]) {
same_layout = FALSE;
break;
}
}
g_free (pos);
if (!same_layout)
goto cannot_change_caps;
}
} else {
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "channels", &self->channels))
goto no_channels;
if (!gst_deinterleave_set_process_function (self, caps))
goto unsupported_caps;
self->pos = gst_audio_get_channel_positions (s);
}
gst_caps_replace (&self->sinkcaps, caps);
/* Get srcpad caps */
srccaps = gst_caps_copy (caps);
s = gst_caps_get_structure (srccaps, 0);
gst_structure_set (s, "channels", G_TYPE_INT, 1, NULL);
gst_structure_remove_field (s, "channel-positions");
/* If we already have pads, update the caps otherwise
* add new pads */
if (self->srcpads) {
gst_deinterleave_set_pads_caps (self, srccaps);
} else {
gst_deinterleave_add_new_pads (self, srccaps);
}
gst_caps_unref (srccaps);
gst_object_unref (self);
return TRUE;
cannot_change_caps:
{
GST_ERROR_OBJECT (self, "can't set new caps: %" GST_PTR_FORMAT, caps);
gst_object_unref (self);
return FALSE;
}
unsupported_caps:
{
GST_ERROR_OBJECT (self, "caps not supported: %" GST_PTR_FORMAT, caps);
gst_object_unref (self);
return FALSE;
}
no_channels:
{
GST_ERROR_OBJECT (self, "invalid caps");
gst_object_unref (self);
return FALSE;
}
}
static gboolean
gst_deinterleave_sink_setcaps (GstDeinterleave * self, GstCaps * caps)
{
GstCaps *srccaps;
GstStructure *s;
GST_DEBUG_OBJECT (self, "got caps: %" GST_PTR_FORMAT, caps);
if (!gst_audio_info_from_caps (&self->audio_info, caps))
goto invalid_caps;
if (!gst_deinterleave_set_process_function (self))
goto unsupported_caps;
if (self->sinkcaps && !gst_caps_is_equal (caps, self->sinkcaps)) {
gint i;
gboolean same_layout = TRUE;
gboolean was_unpositioned;
gboolean is_unpositioned =
GST_AUDIO_INFO_IS_UNPOSITIONED (&self->audio_info);
gint new_channels = GST_AUDIO_INFO_CHANNELS (&self->audio_info);
gint old_channels;
GstAudioInfo old_info;
gst_audio_info_init (&old_info);
gst_audio_info_from_caps (&old_info, self->sinkcaps);
was_unpositioned = GST_AUDIO_INFO_IS_UNPOSITIONED (&old_info);
old_channels = GST_AUDIO_INFO_CHANNELS (&old_info);
/* We allow caps changes as long as the number of channels doesn't change
* and the channel positions stay the same. _getcaps() should've cared
* for this already but better be safe.
*/
if (new_channels != old_channels ||
!gst_deinterleave_set_process_function (self))
goto cannot_change_caps;
/* Now check the channel positions. If we had no channel positions
* and get them or the other way around things have changed.
* If we had channel positions and get different ones things have
* changed too of course
*/
if ((!was_unpositioned && is_unpositioned) || (was_unpositioned
&& !is_unpositioned))
goto cannot_change_caps;
if (!is_unpositioned) {
if (GST_AUDIO_INFO_CHANNELS (&old_info) !=
GST_AUDIO_INFO_CHANNELS (&self->audio_info))
goto cannot_change_caps;
for (i = 0; i < GST_AUDIO_INFO_CHANNELS (&old_info); i++) {
if (self->audio_info.position[i] != old_info.position[i]) {
same_layout = FALSE;
break;
}
}
if (!same_layout)
goto cannot_change_caps;
}
}
gst_caps_replace (&self->sinkcaps, caps);
/* Get srcpad caps */
srccaps = gst_caps_copy (caps);
s = gst_caps_get_structure (srccaps, 0);
gst_structure_set (s, "channels", G_TYPE_INT, 1, NULL);
gst_structure_remove_field (s, "channel-mask");
/* If we already have pads, update the caps otherwise
* add new pads */
if (self->srcpads) {
gst_deinterleave_set_pads_caps (self, srccaps);
} else {
gst_deinterleave_add_new_pads (self, srccaps);
}
gst_caps_unref (srccaps);
return TRUE;
cannot_change_caps:
{
GST_WARNING_OBJECT (self, "caps change from %" GST_PTR_FORMAT
" to %" GST_PTR_FORMAT " not supported: channel number or channel "
"positions change", self->sinkcaps, caps);
return FALSE;
}
unsupported_caps:
{
GST_ERROR_OBJECT (self, "caps not supported: %" GST_PTR_FORMAT, caps);
return FALSE;
}
invalid_caps:
{
GST_ERROR_OBJECT (self, "invalid caps");
return FALSE;
}
}
