X-Git-Url: https://git.ao2.it/gst-am7xxxsink.git/blobdiff_plain/42d98f746fd40bcc42dcfc0848c25a70dc785911..a4f104c73cff3ef6c9f637be33e9df351dd924e2:/src/gstfbdevsink.c diff --git a/src/gstfbdevsink.c b/src/gstfbdevsink.c deleted file mode 100644 index 31018aa..0000000 --- a/src/gstfbdevsink.c +++ /dev/null @@ -1,453 +0,0 @@ -/* GStreamer fbdev plugin - * Copyright (C) 2007 Sean D'Epagnier - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -/* currently the driver does not switch modes, instead uses current mode. - the video is centered and cropped if needed to fit onscreen. - Whatever bitdepth is set is used, and tested to work for 16, 24, 32 bits -*/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "gstfbdevsink.h" - -enum -{ - ARG_0, - ARG_DEVICE -}; - -#if 0 -static void gst_fbdevsink_get_times (GstBaseSink * basesink, - GstBuffer * buffer, GstClockTime * start, GstClockTime * end); -#endif - -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); - -#define VIDEO_CAPS "{ RGB, BGR, BGRx, xBGR, RGB, RGBx, xRGB, RGB15, RGB16 }" - -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 parent_class gst_fbdevsink_parent_class -G_DEFINE_TYPE (GstFBDEVSink, gst_fbdevsink, GST_TYPE_VIDEO_SINK); - -static void -gst_fbdevsink_init (GstFBDEVSink * fbdevsink) -{ - /* nothing to do here yet */ -} - -#if 0 -static void -gst_fbdevsink_get_times (GstBaseSink * basesink, GstBuffer * buffer, - GstClockTime * start, GstClockTime * end) -{ - GstFBDEVSink *fbdevsink; - - fbdevsink = GST_FBDEVSINK (basesink); - - if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) { - *start = GST_BUFFER_TIMESTAMP (buffer); - if (GST_BUFFER_DURATION_IS_VALID (buffer)) { - *end = *start + GST_BUFFER_DURATION (buffer); - } else { - if (fbdevsink->fps_n > 0) { - *end = *start + - gst_util_uint64_scale_int (GST_SECOND, fbdevsink->fps_d, - fbdevsink->fps_n); - } - } - } -} -#endif - -static GstCaps * -gst_fbdevsink_getcaps (GstBaseSink * bsink, GstCaps * filter) -{ - GstFBDEVSink *fbdevsink; - GstVideoFormat format; - GstCaps *caps; - uint32_t rmask; - uint32_t gmask; - uint32_t bmask; - 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) - goto done; - - bpp = fbdevsink->varinfo.bits_per_pixel; - - rmask = ((1 << fbdevsink->varinfo.red.length) - 1) - << fbdevsink->varinfo.red.offset; - gmask = ((1 << fbdevsink->varinfo.green.length) - 1) - << 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; - - depth = fbdevsink->varinfo.red.length + fbdevsink->varinfo.green.length - + fbdevsink->varinfo.blue.length; - - switch (fbdevsink->varinfo.bits_per_pixel) { - case 32: - /* 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 */ - tmask = rmask; - rmask = bmask; - bmask = tmask; - tmask = 0; - endianness = G_BIG_ENDIAN; - break; - } - case 15: - case 16: - tmask = 0; - endianness = G_LITTLE_ENDIAN; - break; - default: - goto unsupported_bpp; - } - - 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 -gst_fbdevsink_setcaps (GstBaseSink * bsink, GstCaps * vscapslist) -{ - GstFBDEVSink *fbdevsink; - GstStructure *structure; - const GValue *fps; - - fbdevsink = GST_FBDEVSINK (bsink); - - structure = gst_caps_get_structure (vscapslist, 0); - - fps = gst_structure_get_value (structure, "framerate"); - fbdevsink->fps_n = gst_value_get_fraction_numerator (fps); - fbdevsink->fps_d = gst_value_get_fraction_denominator (fps); - - gst_structure_get_int (structure, "width", &fbdevsink->width); - gst_structure_get_int (structure, "height", &fbdevsink->height); - - /* calculate centering and scanlengths for the video */ - fbdevsink->bytespp = fbdevsink->fixinfo.line_length / fbdevsink->varinfo.xres; - - fbdevsink->cx = ((int) fbdevsink->varinfo.xres - fbdevsink->width) / 2; - if (fbdevsink->cx < 0) - fbdevsink->cx = 0; - - fbdevsink->cy = ((int) fbdevsink->varinfo.yres - fbdevsink->height) / 2; - if (fbdevsink->cy < 0) - fbdevsink->cy = 0; - - fbdevsink->linelen = fbdevsink->width * fbdevsink->bytespp; - if (fbdevsink->linelen > fbdevsink->fixinfo.line_length) - fbdevsink->linelen = fbdevsink->fixinfo.line_length; - - fbdevsink->lines = fbdevsink->height; - if (fbdevsink->lines > fbdevsink->varinfo.yres) - fbdevsink->lines = fbdevsink->varinfo.yres; - - return TRUE; -} - - -static GstFlowReturn -gst_fbdevsink_show_frame (GstVideoSink * videosink, GstBuffer * buf) -{ - - GstFBDEVSink *fbdevsink; - GstMapInfo map; - int i; - - 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++) { - memcpy (fbdevsink->framebuffer - + (i + fbdevsink->cy) * fbdevsink->fixinfo.line_length - + fbdevsink->cx * fbdevsink->bytespp, - map.data + i * fbdevsink->width * fbdevsink->bytespp, - fbdevsink->linelen); - } - - gst_buffer_unmap (buf, &map); - - return GST_FLOW_OK; -} - -static gboolean -gst_fbdevsink_start (GstBaseSink * bsink) -{ - GstFBDEVSink *fbdevsink; - - fbdevsink = GST_FBDEVSINK (bsink); - - if (!fbdevsink->device) { - fbdevsink->device = g_strdup ("/dev/fb0"); - } - - fbdevsink->fd = open (fbdevsink->device, O_RDWR); - - if (fbdevsink->fd == -1) - return FALSE; - - /* get the fixed screen info */ - if (ioctl (fbdevsink->fd, FBIOGET_FSCREENINFO, &fbdevsink->fixinfo)) - return FALSE; - - /* get the variable screen info */ - if (ioctl (fbdevsink->fd, FBIOGET_VSCREENINFO, &fbdevsink->varinfo)) - return FALSE; - - /* map the framebuffer */ - fbdevsink->framebuffer = mmap (0, fbdevsink->fixinfo.smem_len, - PROT_WRITE, MAP_SHARED, fbdevsink->fd, 0); - if (fbdevsink->framebuffer == MAP_FAILED) - return FALSE; - - return TRUE; -} - -static gboolean -gst_fbdevsink_stop (GstBaseSink * bsink) -{ - GstFBDEVSink *fbdevsink; - - fbdevsink = GST_FBDEVSINK (bsink); - - if (munmap (fbdevsink->framebuffer, fbdevsink->fixinfo.smem_len)) - return FALSE; - - if (close (fbdevsink->fd)) - return FALSE; - - - return TRUE; -} - -static void -gst_fbdevsink_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstFBDEVSink *fbdevsink; - - fbdevsink = GST_FBDEVSINK (object); - - switch (prop_id) { - case ARG_DEVICE:{ - g_free (fbdevsink->device); - fbdevsink->device = g_value_dup_string (value); - break; - } - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - - -static void -gst_fbdevsink_get_property (GObject * object, guint prop_id, GValue * value, - GParamSpec * pspec) -{ - GstFBDEVSink *fbdevsink; - - fbdevsink = GST_FBDEVSINK (object); - - switch (prop_id) { - case ARG_DEVICE:{ - g_value_set_string (value, fbdevsink->device); - break; - } - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static GstStateChangeReturn -gst_fbdevsink_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - - g_return_val_if_fail (GST_IS_FBDEVSINK (element), GST_STATE_CHANGE_FAILURE); - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - switch (transition) { - default: - break; - } - return ret; -} - -static gboolean -plugin_init (GstPlugin * plugin) -{ - if (!gst_element_register (plugin, "fbdevsink", GST_RANK_NONE, - GST_TYPE_FBDEVSINK)) - return FALSE; - - return TRUE; -} - -static void -gst_fbdevsink_class_init (GstFBDEVSinkClass * klass) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - GstBaseSinkClass *basesink_class; - GstVideoSinkClass *videosink_class; - - gobject_class = (GObjectClass *) klass; - gstelement_class = (GstElementClass *) 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; - gobject_class->finalize = gst_fbdevsink_finalize; - - gstelement_class->change_state = - GST_DEBUG_FUNCPTR (gst_fbdevsink_change_state); - - g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE, - g_param_spec_string ("device", "device", - "The framebuffer device eg: /dev/fb0", NULL, G_PARAM_READWRITE)); - - 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 "); - - gst_element_class_add_pad_template (gstelement_class, - gst_static_pad_template_get (&sink_template)); -} - -static void -gst_fbdevsink_finalize (GObject * object) -{ - GstFBDEVSink *fbdevsink = GST_FBDEVSINK (object); - - g_free (fbdevsink->device); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - fbdevsink, - "Linux framebuffer video sink", - plugin_init, VERSION, "LGPL", "gst-fbdevsink", "http://ao2.it")