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ext/xvid/gstxviddec.c: Implement src_getcaps() so proper size caps is negotiated.

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Original commit message from CVS:
2004-01-04  Ronald Bultje  <rbultje@ronald.bitfreak.net>

* ext/xvid/gstxviddec.c: (gst_xviddec_init),
(gst_xviddec_src_getcaps), (gst_xviddec_src_link),
(gst_xviddec_sink_link):
Implement src_getcaps() so proper size caps is negotiated.
This commit is contained in:
Ronald S. Bultje 2004-01-04 09:55:16 +00:00
parent d9685cae43
commit b55427f754
2 changed files with 47 additions and 6 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2004-01-04 Ronald Bultje <rbultje@ronald.bitfreak.net>
* ext/xvid/gstxviddec.c: (gst_xviddec_init),
(gst_xviddec_src_getcaps), (gst_xviddec_src_link),
(gst_xviddec_sink_link):
Implement src_getcaps() so proper size caps is negotiated.
2004-01-04 Ronald Bultje <rbultje@ronald.bitfreak.net> 2004-01-04 Ronald Bultje <rbultje@ronald.bitfreak.net>
* ext/flac/gstflacdec.c: (gst_flacdec_loop): * ext/flac/gstflacdec.c: (gst_flacdec_loop):

46
ext/xvid/gstxviddec.c
View file

@ -87,6 +87,8 @@ static GstPadLinkReturn
static GstPadLinkReturn static GstPadLinkReturn
gst_xviddec_src_link (GstPad *pad, gst_xviddec_src_link (GstPad *pad,
const GstCaps *vscapslist); const GstCaps *vscapslist);
static GstCaps *
gst_xviddec_src_getcaps (GstPad *pad);
static GstElementStateReturn static GstElementStateReturn
gst_xviddec_change_state (GstElement *element); gst_xviddec_change_state (GstElement *element);
@ -164,6 +166,7 @@ gst_xviddec_init (GstXvidDec *xviddec)
"src"); "src");
gst_element_add_pad(GST_ELEMENT(xviddec), xviddec->srcpad); gst_element_add_pad(GST_ELEMENT(xviddec), xviddec->srcpad);
gst_pad_set_getcaps_function (xviddec->srcpad, gst_xviddec_src_getcaps);
gst_pad_set_link_function(xviddec->srcpad, gst_xviddec_src_link); gst_pad_set_link_function(xviddec->srcpad, gst_xviddec_src_link);
/* size, etc. */ /* size, etc. */
@ -271,10 +274,41 @@ gst_xviddec_chain (GstPad *pad,
gst_buffer_unref(buf); gst_buffer_unref(buf);
} }
/* static GstCaps *
* This function allows multiple structures because it gst_xviddec_src_getcaps (GstPad *pad)
* can be called from sink_link(). {
*/ GstXvidDec *xviddec = GST_XVIDDEC (gst_pad_get_parent (pad));
GstCaps *caps;
gint csp[] = {
XVID_CSP_I420,
XVID_CSP_YV12,
XVID_CSP_YUY2,
XVID_CSP_UYVY,
XVID_CSP_YVYU,
XVID_CSP_BGRA,
XVID_CSP_ABGR,
XVID_CSP_RGBA,
XVID_CSP_ARGB,
XVID_CSP_BGR,
XVID_CSP_RGB555,
XVID_CSP_RGB565,
0
}, i;
if (!GST_PAD_CAPS (xviddec->sinkpad)) {
GstPadTemplate *templ = gst_static_pad_template_get (&src_template);
return gst_caps_copy (gst_pad_template_get_caps (templ));
}
caps = gst_caps_new_empty ();
for (i = 0; csp[i] != 0; i++) {
GstCaps *one = gst_xvid_csp_to_caps (csp[i], xviddec->width,
xviddec->height, xviddec->fps);
gst_caps_append (caps, one);
}
return caps;
}
static GstPadLinkReturn static GstPadLinkReturn
gst_xviddec_src_link (GstPad *pad, gst_xviddec_src_link (GstPad *pad,
@ -290,7 +324,7 @@ gst_xviddec_src_link (GstPad *pad,
if (xviddec->handle) { if (xviddec->handle) {
gst_xviddec_unset(xviddec); gst_xviddec_unset(xviddec);
} }
g_print ("out: %s\n", gst_caps_to_string (vscaps));
xviddec->csp = gst_xvid_structure_to_csp (structure, xviddec->width, xviddec->csp = gst_xvid_structure_to_csp (structure, xviddec->width,
&xviddec->stride, &xviddec->stride,
&xviddec->bpp); &xviddec->bpp);
@ -323,7 +357,7 @@ gst_xviddec_sink_link (GstPad *pad,
gst_structure_get_int(structure, "width", &xviddec->width); gst_structure_get_int(structure, "width", &xviddec->width);
gst_structure_get_int(structure, "height", &xviddec->height); gst_structure_get_int(structure, "height", &xviddec->height);
gst_structure_get_double(structure, "framerate", &xviddec->fps); gst_structure_get_double(structure, "framerate", &xviddec->fps);
g_print ("in: %dx%d\n", xviddec->width, xviddec->height);
/* re-nego? or just await src nego? */ /* re-nego? or just await src nego? */
if (GST_PAD_CAPS(xviddec->srcpad)) { if (GST_PAD_CAPS(xviddec->srcpad)) {
GstPadLinkReturn ret; GstPadLinkReturn ret;