ARG_FRAME_TIME,
};
-GST_PADTEMPLATE_FACTORY (sink_template,
- "sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_CAPS_NEW (
- "v4lmjpegsink_caps",
- "video/jpeg",
- "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
- "height", GST_PROPS_INT_RANGE (0, G_MAXINT)
- )
-)
-
/* init functions */
static void gst_v4lmjpegsink_class_init (GstV4lMjpegSinkClass *klass);
static void gst_v4lmjpegsink_init (GstV4lMjpegSink *v4lmjpegsink);
/* the chain of buffers */
+static GstPadConnectReturn gst_v4lmjpegsink_sinkconnect (GstPad *pad,
+ GstCaps *vscapslist);
static void gst_v4lmjpegsink_chain (GstPad *pad,
GstBuffer *buf);
static void gst_v4lmjpegsink_close (GstV4lMjpegSink *v4lmjpegsink);
static GstElementStateReturn gst_v4lmjpegsink_change_state (GstElement *element);
+
+static GstCaps *capslist = NULL;
+static GstPadTemplate *sink_template;
+
static GstElementClass *parent_class = NULL;
static guint gst_v4lmjpegsink_signals[LAST_SIGNAL] = { 0 };
gstelement_class->change_state = gst_v4lmjpegsink_change_state;
}
-static GstPadConnectReturn
-gst_v4lmjpegsink_sinkconnect (GstPad *pad,
- GstCaps *caps)
-{
- GstV4lMjpegSink *v4lmjpegsink;
-
- v4lmjpegsink = GST_V4LMJPEGSINK (gst_pad_get_parent (pad));
-
- if (!GST_CAPS_IS_FIXED (caps))
- return GST_PAD_CONNECT_DELAYED;
-
- v4lmjpegsink->width = gst_caps_get_int (caps, "width");
- v4lmjpegsink->height = gst_caps_get_int (caps, "height");
-
- gst_v4lmjpegsink_set_playback(v4lmjpegsink,
- v4lmjpegsink->width, v4lmjpegsink->height,
- v4lmjpegsink->x_offset, v4lmjpegsink->y_offset,
- GST_V4LELEMENT(v4lmjpegsink)->norm, 0); /* TODO: interlacing */
-
- g_signal_emit (G_OBJECT (v4lmjpegsink), gst_v4lmjpegsink_signals[SIGNAL_HAVE_SIZE], 0,
- v4lmjpegsink->width, v4lmjpegsink->height);
-
- return GST_PAD_CONNECT_OK;
-}
-
static void
gst_v4lmjpegsink_init (GstV4lMjpegSink *v4lmjpegsink)
{
- v4lmjpegsink->sinkpad = gst_pad_new_from_template(GST_PADTEMPLATE_GET (sink_template), "sink");
+ v4lmjpegsink->sinkpad = gst_pad_new_from_template (sink_template, "sink");
gst_element_add_pad (GST_ELEMENT (v4lmjpegsink), v4lmjpegsink->sinkpad);
+
gst_pad_set_chain_function (v4lmjpegsink->sinkpad, gst_v4lmjpegsink_chain);
gst_pad_set_connect_function (v4lmjpegsink->sinkpad, gst_v4lmjpegsink_sinkconnect);
}
+static GstPadConnectReturn
+gst_v4lmjpegsink_sinkconnect (GstPad *pad,
+ GstCaps *vscapslist)
+{
+ GstV4lMjpegSink *v4lmjpegsink;
+ GstCaps *caps;
+
+ v4lmjpegsink = GST_V4LMJPEGSINK (gst_pad_get_parent (pad));
+
+ for (caps = capslist; caps != NULL; caps = vscapslist = vscapslist->next)
+ {
+ v4lmjpegsink->width = gst_caps_get_int (caps, "width");
+ v4lmjpegsink->height = gst_caps_get_int (caps, "height");
+
+ if (!gst_v4lmjpegsink_set_playback(v4lmjpegsink,
+ v4lmjpegsink->width, v4lmjpegsink->height,
+ v4lmjpegsink->x_offset, v4lmjpegsink->y_offset,
+ GST_V4LELEMENT(v4lmjpegsink)->norm, 0)) /* TODO: interlacing */
+ continue;
+
+ g_signal_emit (G_OBJECT (v4lmjpegsink), gst_v4lmjpegsink_signals[SIGNAL_HAVE_SIZE], 0,
+ v4lmjpegsink->width, v4lmjpegsink->height);
+
+ return GST_PAD_CONNECT_OK;
+ }
+
+ /* if we got here - it's not good */
+ gst_element_error(GST_ELEMENT(v4lmjpegsink),
+ "Failed to find acceptable caps");
+ return GST_PAD_CONNECT_REFUSED;
+}
+
+
static void
gst_v4lmjpegsink_chain (GstPad *pad,
GstBuffer *buf)
v4lmjpegsink->y_offset = g_value_get_int(value);
break;
default:
- /*parent_class->set_property(object, prop_id, value, pspec);*/
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
g_value_set_int (value, v4lmjpegsink->bufsize);
break;
default:
- /*parent_class->get_property(object, prop_id, value, pspec);*/
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
GstPlugin *plugin)
{
GstElementFactory *factory;
+ GstCaps *caps;
/* create an elementfactory for the v4lmjpegsink element */
factory = gst_elementfactory_new("v4lmjpegsink",GST_TYPE_V4LMJPEGSINK,
&gst_v4lmjpegsink_details);
g_return_val_if_fail(factory != NULL, FALSE);
- gst_elementfactory_add_padtemplate (factory,
- GST_PADTEMPLATE_GET (sink_template));
+ caps = gst_caps_new ("v4lmjpegsink_caps",
+ "video/jpeg",
+ gst_props_new (
+ "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ "height", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ NULL )
+ );
+ capslist = gst_caps_append(capslist, caps);
+
+ sink_template = gst_padtemplate_new (
+ "sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ capslist, NULL);
+
+ gst_elementfactory_add_padtemplate (factory, sink_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
static void gst_v4lmjpegsrc_init (GstV4lMjpegSrc *v4lmjpegsrc);
/* pad/buffer functions */
-/*
-static GstPadNegotiateReturn gst_v4lmjpegsrc_negotiate (GstPad *pad,
- GstCaps **caps,
- gpointer *user_data);
- */
-static GstCaps* gst_v4lmjpegsrc_create_caps (GstV4lMjpegSrc *v4lmjpegsrc);
+static GstPadConnectReturn gst_v4lmjpegsrc_srcconnect (GstPad *pad,
+ GstCaps *caps);
static GstBuffer* gst_v4lmjpegsrc_get (GstPad *pad);
/* get/set params */
static void gst_v4lmjpegsrc_buffer_free (GstBuffer *buf);
+static GstCaps *capslist = NULL;
+static GstPadTemplate *src_template;
+
static GstElementClass *parent_class = NULL;
//static guint gst_v4lmjpegsrc_signals[LAST_SIGNAL] = { 0 };
static void
gst_v4lmjpegsrc_init (GstV4lMjpegSrc *v4lmjpegsrc)
{
- v4lmjpegsrc->srcpad = gst_pad_new("src", GST_PAD_SRC);
+ v4lmjpegsrc->srcpad = gst_pad_new_from_template (src_template, "src");
gst_element_add_pad(GST_ELEMENT(v4lmjpegsrc), v4lmjpegsrc->srcpad);
gst_pad_set_get_function (v4lmjpegsrc->srcpad, gst_v4lmjpegsrc_get);
- //gst_pad_set_negotiate_function (v4lmjpegsrc->srcpad, gst_v4lmjpegsrc_negotiate);
+ gst_pad_set_connect_function (v4lmjpegsrc->srcpad, gst_v4lmjpegsrc_srcconnect);
v4lmjpegsrc->bufferpool = gst_buffer_pool_new();
gst_buffer_pool_set_buffer_new_function(v4lmjpegsrc->bufferpool, gst_v4lmjpegsrc_buffer_new);
v4lmjpegsrc->numbufs = 64;
v4lmjpegsrc->bufsize = 256;
- v4lmjpegsrc->init = TRUE;
+ v4lmjpegsrc->capslist = capslist;
}
-
-/*
-static GstPadNegotiateReturn
-gst_v4lmjpegsrc_negotiate (GstPad *pad,
- GstCaps **caps,
- gpointer *user_data)
+static GstPadConnectReturn
+gst_v4lmjpegsrc_srcconnect (GstPad *pad,
+ GstCaps *caps)
{
GstV4lMjpegSrc *v4lmjpegsrc;
v4lmjpegsrc = GST_V4LMJPEGSRC (gst_pad_get_parent (pad));
- if (!*caps) {
- return GST_PAD_NEGOTIATE_FAIL;
- }
- else {
- return GST_PAD_NEGOTIATE_AGREE;
- }
-
- return GST_PAD_NEGOTIATE_FAIL;
-}
-*/
-
-
-static GstCaps*
-gst_v4lmjpegsrc_create_caps (GstV4lMjpegSrc *v4lmjpegsrc)
-{
- GstCaps *caps;
-
- caps = GST_CAPS_NEW (
- "v4lmjpegsrc_caps",
- "video/jpeg",
- "width", GST_PROPS_INT(v4lmjpegsrc->end_width),
- "height", GST_PROPS_INT(v4lmjpegsrc->end_height)
- );
+ /* we will try_set_caps() with the actual size (wxh) when we know it */
- return caps;
+ return GST_PAD_CONNECT_OK;
}
v4lmjpegsrc = GST_V4LMJPEGSRC (gst_pad_get_parent (pad));
- if (v4lmjpegsrc->init) {
- gst_pad_try_set_caps (v4lmjpegsrc->srcpad, gst_v4lmjpegsrc_create_caps (v4lmjpegsrc));
- v4lmjpegsrc->init = FALSE;
- }
- else {
- if (!gst_pad_get_caps (v4lmjpegsrc->srcpad) &&
- !gst_pad_renegotiate (v4lmjpegsrc->srcpad)) {
- return NULL;
- }
- }
-
buf = gst_buffer_new_from_pool(v4lmjpegsrc->bufferpool, 0, 0);
if (!buf)
{
v4lmjpegsrc->bufsize = g_value_get_int(value);
break;
default:
- /*parent_class->set_property(object, prop_id, value, pspec);*/
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
g_value_set_int(value, v4lmjpegsrc->breq.size);
break;
default:
- /*parent_class->get_property(object, prop_id, value, pspec);*/
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
{
GstV4lMjpegSrc *v4lmjpegsrc;
GstElementStateReturn parent_value;
+ GstCaps *caps;
g_return_val_if_fail(GST_IS_V4LMJPEGSRC(element), GST_STATE_FAILURE);
v4lmjpegsrc->quality))
return GST_STATE_FAILURE;
}
- v4lmjpegsrc->init = TRUE;
+ /* we now have an actual width/height - *set it* */
+ caps = gst_caps_new("v4lmjpegsrc_caps",
+ "video/jpeg",
+ gst_props_new(
+ "width", GST_PROPS_INT(v4lmjpegsrc->end_width),
+ "height", GST_PROPS_INT(v4lmjpegsrc->end_height),
+ NULL ) );
+ if (!gst_pad_try_set_caps(v4lmjpegsrc->srcpad, caps))
+ {
+ gst_element_error(GST_ELEMENT(v4lmjpegsrc),
+ "Failed to set new caps");
+ return GST_STATE_FAILURE;
+ }
if (!gst_v4lmjpegsrc_capture_init(v4lmjpegsrc))
return GST_STATE_FAILURE;
break;
plugin_init (GModule *module, GstPlugin *plugin)
{
GstElementFactory *factory;
+ GstCaps *caps;
/* create an elementfactory for the v4lmjpegsrcparse element */
factory = gst_elementfactory_new("v4lmjpegsrc",GST_TYPE_V4LMJPEGSRC,
&gst_v4lmjpegsrc_details);
g_return_val_if_fail(factory != NULL, FALSE);
+
+ caps = gst_caps_new ("v4lmjpegsrc_caps",
+ "video/jpeg",
+ gst_props_new (
+ "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ "height", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ NULL )
+ );
+ capslist = gst_caps_append(capslist, caps);
+
+ src_template = gst_padtemplate_new (
+ "src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ capslist, NULL);
+
+ gst_elementfactory_add_padtemplate (factory, src_template);
+
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
static void gst_v4lsrc_init (GstV4lSrc *v4lsrc);
/* pad/buffer functions */
-/*static GstPadNegotiateReturn gst_v4lsrc_negotiate (GstPad *pad,
- GstCaps **caps,
- gpointer *user_data);
- */
-static GstCaps* gst_v4lsrc_create_caps (GstV4lSrc *v4lsrc);
+static GstPadConnectReturn gst_v4lsrc_srcconnect (GstPad *pad,
+ GstCaps *caps);
static GstBuffer* gst_v4lsrc_get (GstPad *pad);
/* get/set params */
static void gst_v4lsrc_buffer_free (GstBuffer *buf);
+static GstCaps *capslist = NULL;
+static GstPadTemplate *src_template;
+
static GstElementClass *parent_class = NULL;\
//static guint gst_v4lsrc_signals[LAST_SIGNAL] = { 0 };
static void
gst_v4lsrc_init (GstV4lSrc *v4lsrc)
{
- v4lsrc->srcpad = gst_pad_new("src", GST_PAD_SRC);
+ v4lsrc->srcpad = gst_pad_new_from_template (src_template, "src");
gst_element_add_pad(GST_ELEMENT(v4lsrc), v4lsrc->srcpad);
gst_pad_set_get_function (v4lsrc->srcpad, gst_v4lsrc_get);
- //gst_pad_set_negotiate_function (v4lsrc->srcpad, gst_v4lsrc_negotiate);
+ gst_pad_set_connect_function (v4lsrc->srcpad, gst_v4lsrc_srcconnect);
v4lsrc->bufferpool = gst_buffer_pool_new();
gst_buffer_pool_set_buffer_new_function(v4lsrc->bufferpool, gst_v4lsrc_buffer_new);
gst_buffer_pool_set_buffer_free_function(v4lsrc->bufferpool, gst_v4lsrc_buffer_free);
gst_buffer_pool_set_user_data(v4lsrc->bufferpool, v4lsrc);
- v4lsrc->palette = VIDEO_PALETTE_YUV420P;
+ v4lsrc->palette = 0; /* means 'any' - user can specify a specific palette */
v4lsrc->width = 160;
v4lsrc->height = 120;
v4lsrc->buffer_size = v4lsrc->width * v4lsrc->height * 1.5;
- v4lsrc->init = TRUE;
+ v4lsrc->capslist = capslist;
}
-#if 0
-static GstPadNegotiateReturn
-gst_v4lsrc_negotiate (GstPad *pad,
- GstCaps **caps,
- gpointer *user_data)
+static GstPadConnectReturn
+gst_v4lsrc_srcconnect (GstPad *pad,
+ GstCaps *vscapslist)
{
GstV4lSrc *v4lsrc;
+ GstCaps *caps, *newcaps;
+ gint palette = v4lsrc->palette;
v4lsrc = GST_V4LSRC (gst_pad_get_parent (pad));
- if (!*caps) {
- return GST_PAD_NEGOTIATE_FAIL;
- }
- else {
- gint width, height;
- gulong format;
-
- width = gst_caps_get_int (*caps, "width");
- height = gst_caps_get_int (*caps, "height");
- format = gst_caps_get_fourcc_int (*caps, "format");
-
- switch (format) {
- case GST_MAKE_FOURCC ('R','G','B',' '):
- {
- gint depth;
-
- depth = gst_caps_get_int (*caps, "depth");
-
- switch (depth) {
- case 15:
- v4lsrc->palette = VIDEO_PALETTE_RGB555;
- v4lsrc->buffer_size = width * height * 2;
- break;
- case 16:
- v4lsrc->palette = VIDEO_PALETTE_RGB565;
- v4lsrc->buffer_size = width * height * 2;
- break;
- case 24:
- v4lsrc->palette = VIDEO_PALETTE_RGB24;
- v4lsrc->buffer_size = width * height * 3;
- break;
- case 32:
- v4lsrc->palette = VIDEO_PALETTE_RGB32;
- v4lsrc->buffer_size = width * height * 4;
- break;
- default:
- *caps = NULL;
- return GST_PAD_NEGOTIATE_TRY;
- }
-
- break;
- }
-
- case GST_MAKE_FOURCC ('I','4','2','0'):
- v4lsrc->palette = VIDEO_PALETTE_YUV420P;
- v4lsrc->buffer_size = width * height * 1.5;
- break;
-
- case GST_MAKE_FOURCC ('U','Y','V','Y'):
- v4lsrc->palette = VIDEO_PALETTE_UYVY; //YUV422?;
- v4lsrc->buffer_size = width * height * 2;
- break;
-
- case GST_MAKE_FOURCC ('Y','U','Y','2'):
- v4lsrc->palette = VIDEO_PALETTE_YUYV; //YUV422?;
- v4lsrc->buffer_size = width * height * 2;
- break;
-
- /* TODO: add YUV4:2:2 planar and YUV4:2:0 packed, maybe also YUV4:1:1? */
-
- default:
- *caps = NULL;
- return GST_PAD_NEGOTIATE_TRY;
-
- }
-
- /* if we get here, it's okay */
- v4lsrc->width = width;
- v4lsrc->height = height;
-
- return GST_PAD_NEGOTIATE_AGREE;
- }
-
- return GST_PAD_NEGOTIATE_FAIL;
-}
-#endif
-
-
-static GstCaps*
-gst_v4lsrc_create_caps (GstV4lSrc *v4lsrc)
-{
- GstCaps *caps = NULL;
- gulong fourcc = 0;
-
- switch (v4lsrc->palette) {
- case VIDEO_PALETTE_RGB555:
- case VIDEO_PALETTE_RGB565:
- case VIDEO_PALETTE_RGB24:
- case VIDEO_PALETTE_RGB32:
+ /* TODO: caps = gst_caps_normalize(capslist); */
+ for (caps = vscapslist ; caps != NULL ; caps = vscapslist = vscapslist->next)
+ {
+ if (v4lsrc->palette > 0)
{
- int depth=0, bpp=0;
-
- fourcc = GST_STR_FOURCC ("RGB ");
-
- switch (v4lsrc->palette) {
+ switch (v4lsrc->palette)
+ {
+ case VIDEO_PALETTE_YUV420P:
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('I','4','2','0') &&
+ gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('I','Y','U','V'))
+ goto try_next;
+ goto try_caps;
+ case VIDEO_PALETTE_YUV422:
+ case VIDEO_PALETTE_YUYV:
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('Y','U','Y','2'))
+ goto try_next;
+ goto try_caps;
+ case VIDEO_PALETTE_UYVY:
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('U','Y','V','Y'))
+ goto try_next;
+ goto try_caps;
+ case VIDEO_PALETTE_YUV411:
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('Y','4','1','P'))
+ goto try_next;
+ goto try_caps;
case VIDEO_PALETTE_RGB555:
- depth = 15;
- bpp = 2;
- break;
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('R','G','B',' ') ||
+ gst_caps_get_int(caps, "depth") != 15)
+ goto try_next;
+ goto try_caps;
case VIDEO_PALETTE_RGB565:
- depth = 16;
- bpp = 2;
- break;
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('R','G','B',' ') ||
+ gst_caps_get_int(caps, "depth") != 16)
+ goto try_next;
+ goto try_caps;
case VIDEO_PALETTE_RGB24:
- depth = 24;
- bpp = 3;
- break;
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('R','G','B',' ') ||
+ gst_caps_get_int(caps, "depth") != 24)
+ goto try_next;
+ goto try_caps;
case VIDEO_PALETTE_RGB32:
- depth = 32;
- bpp = 4;
- break;
+ if (gst_caps_get_fourcc_int (caps, "format") != GST_MAKE_FOURCC('R','G','B',' ') ||
+ gst_caps_get_int(caps, "depth") != 32)
+ goto try_next;
+ goto try_caps;
+ default:
+ goto try_next;
}
-
- caps = GST_CAPS_NEW (
- "v4lsrc_caps",
- "video/raw",
- "format", GST_PROPS_FOURCC (fourcc),
- "width", GST_PROPS_INT (v4lsrc->width),
- "height", GST_PROPS_INT (v4lsrc->height),
- "bpp", GST_PROPS_INT (bpp),
- "depth", GST_PROPS_INT (depth)
- );
-
- v4lsrc->buffer_size = v4lsrc->width * v4lsrc->height * bpp;
-
- break;
}
-
- case VIDEO_PALETTE_YUV422:
- case VIDEO_PALETTE_YUV420P:
+ else
{
- switch (v4lsrc->palette) {
- case VIDEO_PALETTE_YUV422:
- fourcc = (G_BYTE_ORDER == G_BIG_ENDIAN) ?
- GST_STR_FOURCC("UYVY") : GST_STR_FOURCC("YUY2");
- v4lsrc->buffer_size = v4lsrc->width * v4lsrc->height * 2;
- break;
- case VIDEO_PALETTE_YUYV:
- fourcc = GST_STR_FOURCC("YUY2");
- v4lsrc->buffer_size = v4lsrc->width * v4lsrc->height * 2;
- break;
- case VIDEO_PALETTE_UYVY:
- fourcc = GST_STR_FOURCC("UYVY");
- v4lsrc->buffer_size = v4lsrc->width * v4lsrc->height * 2;
- break;
- case VIDEO_PALETTE_YUV420P:
- fourcc = GST_STR_FOURCC("I420");
- v4lsrc->buffer_size = v4lsrc->width * v4lsrc->height * 1.5;
- break;
+ switch (gst_caps_get_fourcc_int(caps, "format"))
+ {
+ case GST_MAKE_FOURCC('I','4','2','0'):
+ case GST_MAKE_FOURCC('I','Y','U','V'):
+ palette = VIDEO_PALETTE_YUV420P;
+ goto try_caps;
+ case GST_MAKE_FOURCC('Y','U','Y','2'):
+ palette = VIDEO_PALETTE_YUV422;
+ goto try_caps;
+ case GST_MAKE_FOURCC('U','Y','V','Y'):
+ palette = VIDEO_PALETTE_UYVY;
+ goto try_caps;
+ case GST_MAKE_FOURCC('Y','4','1','P'):
+ palette = VIDEO_PALETTE_YUV411;
+ goto try_caps;
+ case GST_MAKE_FOURCC('R','G','B',' '):
+ switch (gst_caps_get_int(caps, "depth"))
+ {
+ case 15:
+ palette = VIDEO_PALETTE_RGB555;
+ goto try_caps;
+ case 16:
+ palette = VIDEO_PALETTE_RGB565;
+ goto try_caps;
+ case 24:
+ palette = VIDEO_PALETTE_RGB24;
+ goto try_caps;
+ case 32:
+ palette = VIDEO_PALETTE_RGB32;
+ goto try_caps;
+ default:
+ goto try_next;
+ }
+ default:
+ goto try_next;
}
-
- caps = GST_CAPS_NEW (
- "v4lsrc_caps",
- "video/raw",
- "format", GST_PROPS_FOURCC (fourcc),
- "width", GST_PROPS_INT (v4lsrc->width),
- "height", GST_PROPS_INT (v4lsrc->height)
- );
-
- break;
}
- default:
- return NULL;
+ /* if this caps wasn't useful, try the next one */
+ try_next:
+ continue;
+
+ /* if this caps was useful, try it out */
+ try_caps:
+ /* TODO: try the current 'palette' out on the video device */
+
+ if (!gst_v4lsrc_set_capture(v4lsrc, v4lsrc->width, v4lsrc->height, palette))
+ continue;
+
+ /* try to connect the pad/caps with the actual width/height */
+ if (palette >= VIDEO_PALETTE_RGB565 && palette <= VIDEO_PALETTE_RGB555)
+ newcaps = gst_caps_new("v4lsrc_caps",
+ "video/raw",
+ gst_props_new(
+ "format", GST_PROPS_FOURCC(gst_caps_get_fourcc_int(caps, "format")),
+ "width", GST_PROPS_INT(v4lsrc->width),
+ "width", GST_PROPS_INT(v4lsrc->height),
+ "bpp", GST_PROPS_INT(gst_caps_get_int(caps, "bpp")),
+ "depth", GST_PROPS_INT(gst_caps_get_int(caps, "depth")),
+ NULL ) );
+ else
+ newcaps = gst_caps_new("v4lsrc_caps",
+ "video/raw",
+ gst_props_new(
+ "format", GST_PROPS_FOURCC(gst_caps_get_fourcc_int(caps, "format")),
+ "width", GST_PROPS_INT(v4lsrc->width),
+ "height", GST_PROPS_INT(v4lsrc->height),
+ NULL ) );
+
+ if (!gst_pad_try_set_caps(v4lsrc->srcpad, newcaps))
+ continue;
+ else
+ return GST_PAD_CONNECT_DONE;
}
- return caps;
+ /* still nothing - no good caps */
+ gst_element_error(GST_ELEMENT(v4lsrc),
+ "Failed to find acceptable caps");
+ return GST_PAD_CONNECT_REFUSED;
}
v4lsrc = GST_V4LSRC (gst_pad_get_parent (pad));
- if (v4lsrc->init) {
- gst_pad_try_set_caps (v4lsrc->srcpad, gst_v4lsrc_create_caps (v4lsrc));
- v4lsrc->init = FALSE;
- }
- else {
- if (!gst_pad_get_caps (v4lsrc->srcpad) &&
- !gst_pad_renegotiate (v4lsrc->srcpad)) {
- return NULL;
- }
- }
-
buf = gst_buffer_new_from_pool(v4lsrc->bufferpool, 0, 0);
if (!buf)
{
break;
default:
- /*parent_class->set_property(object, prop_id, value, pspec);*/
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
break;
default:
- /*parent_class->get_property(object, prop_id, value, pspec);*/
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
{
GstV4lSrc *v4lsrc;
GstElementStateReturn parent_value;
+ GstCaps *caps;
g_return_val_if_fail(GST_IS_V4LSRC(element), GST_STATE_FAILURE);
switch (GST_STATE_TRANSITION(element)) {
case GST_STATE_READY_TO_PAUSED:
/* set capture parameters and mmap the buffers */
- if (!gst_v4lsrc_set_capture(v4lsrc, v4lsrc->width, v4lsrc->height, v4lsrc->palette))
+ if (!gst_v4lsrc_set_capture(v4lsrc, v4lsrc->width, v4lsrc->height,
+ v4lsrc->palette>0 ? v4lsrc->palette : v4lsrc->mmap.format))
+ return GST_STATE_FAILURE;
+ /* retry setting the video-palette */
+ if (v4lsrc->palette > 0)
+ {
+ switch (v4lsrc->palette)
+ {
+ case VIDEO_PALETTE_YUYV:
+ case VIDEO_PALETTE_UYVY:
+ case VIDEO_PALETTE_YUV422:
+ case VIDEO_PALETTE_YUV420P:
+ case VIDEO_PALETTE_YUV411:
+ {
+ gulong format;
+ switch (v4lsrc->palette)
+ {
+ case VIDEO_PALETTE_YUYV:
+ format = GST_MAKE_FOURCC('Y','U','Y','2');
+ break;
+ case VIDEO_PALETTE_UYVY:
+ format = GST_MAKE_FOURCC('U','Y','V','Y');
+ break;
+ case VIDEO_PALETTE_YUV422:
+ format = GST_MAKE_FOURCC('Y','U','Y','2');
+ break;
+ case VIDEO_PALETTE_YUV420P:
+ format = GST_MAKE_FOURCC('I','4','2','0');
+ break;
+ case VIDEO_PALETTE_YUV411:
+ format = GST_MAKE_FOURCC('Y','4','1','P');
+ break;
+ }
+ caps = gst_caps_new("v4lsrc_caps",
+ "video/raw",
+ gst_props_new(
+ "format", GST_PROPS_FOURCC(format),
+ "width", GST_PROPS_INT(v4lsrc->width),
+ "height", GST_PROPS_INT(v4lsrc->height),
+ NULL ) );
+ break;
+ }
+ case VIDEO_PALETTE_RGB555:
+ case VIDEO_PALETTE_RGB565:
+ case VIDEO_PALETTE_RGB24:
+ case VIDEO_PALETTE_RGB32:
+ {
+ gint depth, bpp;
+ switch (v4lsrc->palette)
+ {
+ case VIDEO_PALETTE_RGB555:
+ bpp = 2;
+ depth = 15;
+ break;
+ case VIDEO_PALETTE_RGB565:
+ bpp = 2;
+ depth = 16;
+ break;
+ case VIDEO_PALETTE_RGB24:
+ bpp = 3;
+ depth = 24;
+ break;
+ case VIDEO_PALETTE_RGB32:
+ bpp = 4;
+ depth = 32;
+ break;
+ }
+ caps = gst_caps_new("v4lsrc_caps",
+ "video/raw",
+ gst_props_new(
+ "format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
+ "width", GST_PROPS_INT(v4lsrc->width),
+ "height", GST_PROPS_INT(v4lsrc->height),
+ "bpp", GST_PROPS_INT(bpp),
+ "depth", GST_PROPS_INT(depth),
+ NULL ) );
+ break;
+ }
+ default:
+ gst_element_error(GST_ELEMENT(v4lsrc),
+ "Failed to find a fourcc code for palette %d (\'%s\')",
+ v4lsrc->palette, palette_name[v4lsrc->palette]);
+ return GST_STATE_FAILURE;
+ }
+ }
+ else
+ {
+ GstCaps *oldcaps = gst_pad_get_caps(v4lsrc->srcpad);
+
+ if (gst_caps_get_fourcc_int(oldcaps, "format") == GST_MAKE_FOURCC('R','G','B',' '))
+ caps = gst_caps_new("v4lsrc_caps",
+ "video/raw",
+ gst_props_new(
+ "format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
+ "width", GST_PROPS_INT(v4lsrc->width),
+ "height", GST_PROPS_INT(v4lsrc->height),
+ "bpp", GST_PROPS_INT(gst_caps_get_int(oldcaps, "bpp")),
+ "depth", GST_PROPS_INT(gst_caps_get_int(oldcaps, "depth")),
+ NULL) );
+ else
+ caps = gst_caps_new("v4lsrc_caps",
+ "video/raw",
+ gst_props_new(
+ "format", GST_PROPS_FOURCC(gst_caps_get_fourcc_int(oldcaps, "format")),
+ "width", GST_PROPS_INT(v4lsrc->width),
+ "height", GST_PROPS_INT(v4lsrc->height),
+ NULL) );
+ }
+ if (!gst_pad_try_set_caps(v4lsrc->srcpad, caps))
+ {
+ gst_element_error(GST_ELEMENT(v4lsrc),
+ "Failed to set new caps");
return GST_STATE_FAILURE;
- v4lsrc->init = TRUE;
+ }
if (!gst_v4lsrc_capture_init(v4lsrc))
return GST_STATE_FAILURE;
break;
}
gst_element_error(GST_ELEMENT(v4lsrc),
- "Couldn't find the buffer");
+ "Couldn\'t find the buffer");
}
GstPlugin *plugin)
{
GstElementFactory *factory;
+ GstCaps *caps;
+ gint i;
+ gulong format[5] = { GST_MAKE_FOURCC('Y','U','Y','2'), /* VIDEO_PALETTE_YUV422/_YUYV */
+ GST_MAKE_FOURCC('I','4','2','0'), /* VIDEO_PALETTE_YUV420P */
+ GST_MAKE_FOURCC('I','Y','U','V'), /* VIDEO_PALETTE_YUV420P */
+ GST_MAKE_FOURCC('U','Y','V','Y'), /* VIDEO_PALETTE_UYVY */
+ GST_MAKE_FOURCC('Y','4','1','P') /* VIDEO_PALETTE_YUV411 */
+ };
+ gint rgb_bpp[4] = { 2, 2, 3, 4 };
+ gint rgb_depth[4] = { 15, 16, 24, 32 };
/* create an elementfactory for the v4lsrc */
factory = gst_elementfactory_new("v4lsrc",GST_TYPE_V4LSRC,
&gst_v4lsrc_details);
g_return_val_if_fail(factory != NULL, FALSE);
+
+ /* make a list of all available caps - first the YUV formats */
+ for (i=0;i<5;i++)
+ {
+ caps = gst_caps_new ("v4lsrc_caps",
+ "video/raw",
+ gst_props_new (
+ "format", GST_PROPS_FOURCC(format[i]),
+ "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ "height", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ NULL )
+ );
+ capslist = gst_caps_append(capslist, caps);
+ }
+
+ /* now all the RGB formats */
+ for (i=0;i<4;i++)
+ {
+ caps = gst_caps_new ("v4lsrc_caps",
+ "video/raw",
+ gst_props_new (
+ "format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
+ "width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ "height", GST_PROPS_INT_RANGE (0, G_MAXINT),
+ "bpp", GST_PROPS_INT(rgb_bpp[i]),
+ "depth", GST_PROPS_INT(rgb_depth[i]),
+ NULL )
+ );
+ capslist = gst_caps_append(capslist, caps);
+ }
+
+ src_template = gst_padtemplate_new (
+ "src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ capslist, NULL);
+
+ gst_elementfactory_add_padtemplate (factory, src_template);
+
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
projects / platform / upstream / gst-plugins-base.git / commitdiff