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fbdev: port fbdevsink to 1.0

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This commit is contained in:
Tim-Philipp Müller 2013-03-09 00:17:45 +00:00
parent bd8963f591
commit ae550222a8
4 changed files with 118 additions and 120 deletions
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2
configure.ac
View file

@ -323,7 +323,7 @@ GST_PLUGINS_NONPORTED=" aiff \
patchdetect real \
sdi stereo tta videofilters \
videomeasure videosignal vmnc \
decklink fbdev linsys vcd \
decklink linsys vcd \
apexsink cdaudio dc1394 dirac directfb \
gsettings ladspa \
musepack musicbrainz nas neon ofa openal rsvg sdl sndfile timidity \

2
sys/fbdev/Makefile.am
View file

@ -6,7 +6,7 @@ libgstfbdevsink_la_CFLAGS = \
$(GST_CFLAGS) \
$(LIBFBDEV_CFLAGS)
libgstfbdevsink_la_LIBADD = \
$(GST_PLUGINS_BASE_LIBS) \
$(GST_PLUGINS_BASE_LIBS) -lgstvideo-$(GST_API_VERSION) \
$(GST_BASE_LIBS) \
$(LIBFBDEV_LIBS)
libgstfbdevsink_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)

225
sys/fbdev/gstfbdevsink.c
View file

@ -42,62 +42,49 @@
enum
{
ARG_0,
ARG_DEVICE,
ARG_DEVICE
};
static void gst_fbdevsink_base_init (gpointer g_class);
static void gst_fbdevsink_class_init (GstFBDEVSinkClass * klass);
#if 0
static void gst_fbdevsink_get_times (GstBaseSink * basesink,
GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
#endif
static gboolean gst_fbdevsink_setcaps (GstBaseSink * bsink, GstCaps * caps);
static GstFlowReturn gst_fbdevsink_render (GstBaseSink * bsink,
static GstFlowReturn gst_fbdevsink_show_frame (GstVideoSink * videosink,
GstBuffer * buff);
static gboolean gst_fbdevsink_start (GstBaseSink * bsink);
static gboolean gst_fbdevsink_stop (GstBaseSink * bsink);
static GstCaps *gst_fbdevsink_getcaps (GstBaseSink * bsink, GstCaps * filter);
static gboolean gst_fbdevsink_setcaps (GstBaseSink * bsink, GstCaps * caps);
static void gst_fbdevsink_finalize (GObject * object);
static void gst_fbdevsink_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_fbdevsink_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static GstStateChangeReturn
gst_fbdevsink_change_state (GstElement * element, GstStateChange transition);
static GstStateChangeReturn gst_fbdevsink_change_state (GstElement * element,
GstStateChange transition);
static GstCaps *gst_fbdevsink_getcaps (GstBaseSink * bsink);
#define VIDEO_CAPS "{ RGB, BGR, BGRx, xBGR, RGB, RGBx, xRGB, RGB15, RGB16 }"
static GstVideoSinkClass *parent_class = NULL;
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (VIDEO_CAPS))
);
#define GST_FBDEV_TEMPLATE_CAPS \
GST_VIDEO_CAPS_RGB_15 \
";" GST_VIDEO_CAPS_RGB_16 \
";" GST_VIDEO_CAPS_BGR \
";" GST_VIDEO_CAPS_BGRx \
";" GST_VIDEO_CAPS_xBGR \
";" GST_VIDEO_CAPS_RGB \
";" GST_VIDEO_CAPS_RGBx \
";" GST_VIDEO_CAPS_xRGB \
#define parent_class gst_fbdevsink_parent_class
G_DEFINE_TYPE (GstFBDEVSink, gst_fbdevsink, GST_TYPE_VIDEO_SINK);
static void
gst_fbdevsink_base_init (gpointer g_class)
gst_fbdevsink_init (GstFBDEVSink * fbdevsink)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_FBDEV_TEMPLATE_CAPS)
);
gst_element_class_set_static_metadata (element_class, "fbdev video sink",
"Sink/Video",
"A linux framebuffer videosink", "Sean D'Epagnier <sean@depagnier.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
/* nothing to do here yet */
}
#if 0
static void
gst_fbdevsink_get_times (GstBaseSink * basesink, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
@ -119,28 +106,29 @@ gst_fbdevsink_get_times (GstBaseSink * basesink, GstBuffer * buffer,
}
}
}
static uint32_t
swapendian (uint32_t val)
{
return (val & 0xff) << 24 | (val & 0xff00) << 8
| (val & 0xff0000) >> 8 | (val & 0xff000000) >> 24;
}
#endif
static GstCaps *
gst_fbdevsink_getcaps (GstBaseSink * bsink)
gst_fbdevsink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstFBDEVSink *fbdevsink;
GstVideoFormat format;
GstCaps *caps;
uint32_t rmask;
uint32_t gmask;
uint32_t bmask;
int endianness;
uint32_t tmask;
int endianness, depth, bpp;
fbdevsink = GST_FBDEVSINK (bsink);
caps = gst_static_pad_template_get_caps (&sink_template);
/* FIXME: locking */
if (!fbdevsink->framebuffer)
return gst_caps_from_string (GST_FBDEV_TEMPLATE_CAPS);
goto done;
bpp = fbdevsink->varinfo.bits_per_pixel;
rmask = ((1 << fbdevsink->varinfo.red.length) - 1)
<< fbdevsink->varinfo.red.offset;
@ -148,50 +136,76 @@ gst_fbdevsink_getcaps (GstBaseSink * bsink)
<< fbdevsink->varinfo.green.offset;
bmask = ((1 << fbdevsink->varinfo.blue.length) - 1)
<< fbdevsink->varinfo.blue.offset;
tmask = ((1 << fbdevsink->varinfo.transp.length) - 1)
<< fbdevsink->varinfo.transp.offset;
endianness = 0;
depth = fbdevsink->varinfo.red.length + fbdevsink->varinfo.green.length
+ fbdevsink->varinfo.blue.length;
switch (fbdevsink->varinfo.bits_per_pixel) {
case 32:
/* swap endian of masks */
rmask = swapendian (rmask);
gmask = swapendian (gmask);
bmask = swapendian (bmask);
endianness = 4321;
/* swap endianness of masks */
rmask = GUINT32_SWAP_LE_BE (rmask);
gmask = GUINT32_SWAP_LE_BE (gmask);
bmask = GUINT32_SWAP_LE_BE (bmask);
tmask = GUINT32_SWAP_LE_BE (tmask);
depth += fbdevsink->varinfo.transp.length;
endianness = G_BIG_ENDIAN;
break;
case 24:{
/* swap red and blue masks */
uint32_t t = rmask;
tmask = rmask;
rmask = bmask;
bmask = t;
endianness = 4321;
bmask = tmask;
tmask = 0;
endianness = G_BIG_ENDIAN;
break;
}
case 15:
case 16:
endianness = 1234;
tmask = 0;
endianness = G_LITTLE_ENDIAN;
break;
default:
/* other bit depths are not supported */
g_warning ("unsupported bit depth: %d\n",
fbdevsink->varinfo.bits_per_pixel);
return NULL;
goto unsupported_bpp;
}
/* replace all but width, height, and framerate */
caps = gst_caps_from_string (GST_VIDEO_CAPS_RGB_15);
gst_caps_set_simple (caps,
"bpp", G_TYPE_INT, fbdevsink->varinfo.bits_per_pixel,
"depth", G_TYPE_INT, fbdevsink->varinfo.red.length +
fbdevsink->varinfo.green.length +
fbdevsink->varinfo.blue.length +
fbdevsink->varinfo.transp.length,
"endianness", G_TYPE_INT, endianness,
"red_mask", G_TYPE_INT, rmask,
"green_mask", G_TYPE_INT, gmask, "blue_mask", G_TYPE_INT, bmask, NULL);
format = gst_video_format_from_masks (depth, bpp, endianness, rmask, gmask,
bmask, tmask);
if (format == GST_VIDEO_FORMAT_UNKNOWN)
goto unknown_format;
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps, "format", G_TYPE_STRING,
gst_video_format_to_string (format), NULL);
done:
if (filter != NULL) {
GstCaps *icaps;
icaps = gst_caps_intersect (caps, filter);
gst_caps_unref (caps);
caps = icaps;
}
return caps;
/* ERRORS */
unsupported_bpp:
{
GST_WARNING_OBJECT (bsink, "unsupported bit depth: %d", bpp);
return NULL;
}
unknown_format:
{
GST_WARNING_OBJECT (bsink, "could not map fbdev format to GstVideoFormat: "
"depth=%u, bpp=%u, endianness=%u, rmask=0x%08x, gmask=0x%08x, "
"bmask=0x%08x, tmask=0x%08x", depth, bpp, endianness, rmask, gmask,
bmask, tmask);
return NULL;
}
}
static gboolean
@ -236,24 +250,30 @@ gst_fbdevsink_setcaps (GstBaseSink * bsink, GstCaps * vscapslist)
static GstFlowReturn
gst_fbdevsink_render (GstBaseSink * bsink, GstBuffer * buf)
gst_fbdevsink_show_frame (GstVideoSink * videosink, GstBuffer * buf)
{
GstFBDEVSink *fbdevsink;
GstMapInfo map;
int i;
fbdevsink = GST_FBDEVSINK (bsink);
fbdevsink = GST_FBDEVSINK (videosink);
/* optimization could remove this memcpy by allocating the buffer
in framebuffer memory, but would only work when xres matches
the video width */
if (!gst_buffer_map (buf, &map, GST_MAP_READ))
return GST_FLOW_ERROR;
for (i = 0; i < fbdevsink->lines; i++)
for (i = 0; i < fbdevsink->lines; i++) {
memcpy (fbdevsink->framebuffer
+ (i + fbdevsink->cy) * fbdevsink->fixinfo.line_length
+ fbdevsink->cx * fbdevsink->bytespp,
GST_BUFFER_DATA (buf) + i * fbdevsink->width * fbdevsink->bytespp,
map.data + i * fbdevsink->width * fbdevsink->bytespp,
fbdevsink->linelen);
}
gst_buffer_unmap (buf, &map);
return GST_FLOW_OK;
}
@ -379,13 +399,13 @@ gst_fbdevsink_class_init (GstFBDEVSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstvs_class;
GstBaseSinkClass *basesink_class;
GstVideoSinkClass *videosink_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstvs_class = (GstBaseSinkClass *) klass;
parent_class = g_type_class_peek_parent (klass);
basesink_class = (GstBaseSinkClass *) klass;
videosink_class = (GstVideoSinkClass *) klass;
gobject_class->set_property = gst_fbdevsink_set_property;
gobject_class->get_property = gst_fbdevsink_get_property;
@ -398,14 +418,22 @@ gst_fbdevsink_class_init (GstFBDEVSinkClass * klass)
g_param_spec_string ("device", "device",
"The framebuffer device eg: /dev/fb0", NULL, G_PARAM_READWRITE));
gstvs_class->set_caps = GST_DEBUG_FUNCPTR (gst_fbdevsink_setcaps);
gstvs_class->get_caps = GST_DEBUG_FUNCPTR (gst_fbdevsink_getcaps);
gstvs_class->get_times = GST_DEBUG_FUNCPTR (gst_fbdevsink_get_times);
gstvs_class->preroll = GST_DEBUG_FUNCPTR (gst_fbdevsink_render);
gstvs_class->render = GST_DEBUG_FUNCPTR (gst_fbdevsink_render);
gstvs_class->start = GST_DEBUG_FUNCPTR (gst_fbdevsink_start);
gstvs_class->stop = GST_DEBUG_FUNCPTR (gst_fbdevsink_stop);
basesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_fbdevsink_setcaps);
basesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_fbdevsink_getcaps);
#if 0
basesink_class->get_times = GST_DEBUG_FUNCPTR (gst_fbdevsink_get_times);
#endif
basesink_class->start = GST_DEBUG_FUNCPTR (gst_fbdevsink_start);
basesink_class->stop = GST_DEBUG_FUNCPTR (gst_fbdevsink_stop);
videosink_class->show_frame = GST_DEBUG_FUNCPTR (gst_fbdevsink_show_frame);
gst_element_class_set_static_metadata (gstelement_class, "fbdev video sink",
"Sink/Video", "Linux framebuffer videosink",
"Sean D'Epagnier <sean@depagnier.com>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sink_template));
}
static void
@ -418,33 +446,8 @@ gst_fbdevsink_finalize (GObject * object)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
GType
gst_fbdevsink_get_type (void)
{
static GType fbdevsink_type = 0;
if (!fbdevsink_type) {
static const GTypeInfo fbdevsink_info = {
sizeof (GstFBDEVSinkClass),
gst_fbdevsink_base_init,
NULL,
(GClassInitFunc) gst_fbdevsink_class_init,
NULL,
NULL,
sizeof (GstFBDEVSink),
0,
NULL
};
fbdevsink_type =
g_type_register_static (GST_TYPE_BASE_SINK, "GstFBDEVSink",
&fbdevsink_info, 0);
}
return fbdevsink_type;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
fbdevsink,
"linux framebuffer video sink",
"Linux framebuffer video sink",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

9
sys/fbdev/gstfbdevsink.h
View file

@ -40,18 +40,13 @@ G_BEGIN_DECLS
#define GST_IS_FBDEVSINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FBDEVSINK))
typedef enum {
GST_FBDEVSINK_OPEN = (GST_ELEMENT_FLAG_LAST << 0),
GST_FBDEVSINK_FLAG_LAST = (GST_ELEMENT_FLAG_LAST << 2),
} GstFBDEVSinkFlags;
typedef struct _GstFBDEVSink GstFBDEVSink;
typedef struct _GstFBDEVSinkClass GstFBDEVSinkClass;
struct _GstFBDEVSink {
GstVideoSink videosink;
/*< private >*/
struct fb_fix_screeninfo fixinfo;
struct fb_var_screeninfo varinfo;
@ -67,7 +62,7 @@ struct _GstFBDEVSink {
};
struct _GstFBDEVSinkClass {
GstBaseSinkClass parent_class;
GstVideoSinkClass videosink_class;
};