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gstreamer/ext/directfb/dfbvideosink.c
Eunhae Choi 4ef53c455b directfb: fix caps leak 
add unref in case of error

https://bugzilla.gnome.org/show_bug.cgi?id=783961
2017-06-20 09:28:28 +03:00

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/* GStreamer DirectFB plugin
* Copyright (C) 2005 Julien MOUTTE <julien@moutte.net>
* Copyright (C) 2013 Kazunori Kobayashi <kkobayas@igel.co.jp>
*
* 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.
*/
/**
* SECTION:element-dfbvideosink
* @title: dfbvideosink
*
* DfbVideoSink renders video frames using the
* <ulink url="http://www.directfb.org/">DirectFB</ulink> library.
* Rendering can happen in two different modes :
*
* * Standalone: this mode will take complete control of the monitor forcing
* <ulink url="http://www.directfb.org/">DirectFB</ulink> to fullscreen layout.
* This is convenient to test using the gst-launch-1.0 command line tool or
* other simple applications. It is possible to interrupt playback while
* being in this mode by pressing the Escape key.
* This mode handles navigation events for every input device supported by
* the <ulink url="http://www.directfb.org/">DirectFB</ulink> library, it will
* look for available video modes in the fb.modes file and try to switch
* the framebuffer video mode to the most suitable one. Depending on
* hardware acceleration capabilities the element will handle scaling or not.
* If no acceleration is available it will do clipping or centering of the
* video frames respecting the original aspect ratio.
*
* * Embedded: this mode will render video frames in a
* #GstDfbVideoSink:surface provided by the
* application developer. This is a more advanced usage of the element and
* it is required to integrate video playback in existing
* <ulink url="http://www.directfb.org/">DirectFB</ulink> applications.
* When using this mode the element just renders to the
* #GstDfbVideoSink:surface provided by the
* application, that means it won't handle navigation events and won't resize
* the #GstDfbVideoSink:surface to fit video
* frames geometry. Application has to implement the necessary code to grab
* informations about the negotiated geometry and resize there
* #GstDfbVideoSink:surface accordingly.
*
* For both modes the element implements a buffer pool allocation system to
* optimize memory allocation time and handle reverse negotiation. Indeed if
* you insert an element like videoscale in the pipeline the video sink will
* negotiate with it to try get a scaled video for either the fullscreen layout
* or the application provided external #GstDfbVideoSink:surface.
*
* ## Example application
*
* <include xmlns="http://www.w3.org/2003/XInclude" href="element-dfb-example.xml" />
*
* ## Example pipelines
* |[
* gst-launch-1.0 -v videotestsrc ! dfbvideosink hue=20000 saturation=40000 brightness=25000
* ]| test the colorbalance interface implementation in dfbvideosink
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/video/video.h>
/* Object header */
#include "dfbvideosink.h"
#include <string.h>
#include <stdlib.h>
/* Debugging category */
GST_DEBUG_CATEGORY_STATIC (dfbvideosink_debug);
#define GST_CAT_DEFAULT dfbvideosink_debug
/* Default template */
static GstStaticPadTemplate gst_dfbvideosink_sink_template_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw, "
"framerate = (fraction) [ 0, MAX ], "
"width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")
);
/* Signals and args */
enum
{
ARG_0,
ARG_SURFACE,
ARG_CONTRAST,
ARG_BRIGHTNESS,
ARG_HUE,
ARG_SATURATION,
ARG_PIXEL_ASPECT_RATIO,
ARG_VSYNC,
ARG_LAYER_MODE
};
#define DEFAULT_LAYER_MODE LAYER_MODE_EXCLUSIVE
static DFBSurfacePixelFormat gst_dfbvideosink_get_format_from_caps (GstCaps *
caps);
static void gst_dfbvideosink_update_colorbalance (GstDfbVideoSink *
dfbvideosink);
static void gst_dfbvideosink_navigation_init (GstNavigationInterface * iface);
static void gst_dfbvideosink_colorbalance_init (GstColorBalanceInterface
* iface);
static const char *gst_dfbvideosink_get_format_name (DFBSurfacePixelFormat
format);
#define gst_dfbvideosink_parent_class parent_class
static GType
gst_dfbvideosink_layer_mode_get_type (void)
{
static gsize id = 0;
static const GEnumValue values[] = {
{0, "NONE", "none"},
{DLSCL_EXCLUSIVE, "DLSCL_EXCLUSIVE", "exclusive"},
{DLSCL_ADMINISTRATIVE, "DLSCL_ADMINISTRATIVE", "administrative"},
{0, NULL, NULL}
};
if (g_once_init_enter (&id)) {
GType tmp = g_enum_register_static ("GstDfbVideoSinkLayerMode", values);
g_once_init_leave (&id, tmp);
}
return (GType) id;
}
GType
gst_meta_dfbsurface_api_get_type (void)
{
static volatile GType type;
static const gchar *tags[] = { "memory", NULL };
if (g_once_init_enter (&type)) {
GType _type = gst_meta_api_type_register ("GstMetaDfbSurfaceAPI", tags);
g_once_init_leave (&type, _type);
}
return type;
}
static gboolean
gst_meta_dfbsurface_init (GstMetaDfbSurface * meta, gpointer params,
GstBuffer * buf)
{
meta->surface = NULL;
meta->width = meta->height = 0;
meta->locked = FALSE;
meta->pixel_format = 0;
meta->dfbvideosink = NULL;
return TRUE;
}
/* our metadata */
const GstMetaInfo *
gst_meta_dfbsurface_get_info (void)
{
static const GstMetaInfo *meta_info = NULL;
if (g_once_init_enter (&meta_info)) {
const GstMetaInfo *meta =
gst_meta_register (gst_meta_dfbsurface_api_get_type (),
"GstMetaDfbSurface", sizeof (GstMetaDfbSurface),
(GstMetaInitFunction) gst_meta_dfbsurface_init,
(GstMetaFreeFunction) NULL,
(GstMetaTransformFunction) NULL);
g_once_init_leave (&meta_info, meta);
}
return meta_info;
}
G_DEFINE_TYPE (GstDfbBufferPool, gst_dfb_buffer_pool, GST_TYPE_BUFFER_POOL);
static gboolean
gst_dfb_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
{
GstDfbBufferPool *dfbpool = GST_DFB_BUFFER_POOL_CAST (pool);
GstCaps *caps;
DFBSurfacePixelFormat pixel_format = DSPF_UNKNOWN;
gint width, height;
DFBResult ret;
DFBSurfaceDescription s_dsc;
IDirectFBSurface *surface;
gpointer data;
gint pitch;
guint size;
guint min_buffers;
guint max_buffers;
GstVideoInfo info;
if (!dfbpool->dfbvideosink->setup) {
GST_WARNING_OBJECT (pool, "DirectFB hasn't been initialized yet.");
return FALSE;
}
if (!gst_buffer_pool_config_get_params (config, &caps, NULL, &min_buffers,
&max_buffers)) {
GST_WARNING_OBJECT (pool, "invalid config");
return FALSE;
}
pixel_format = gst_dfbvideosink_get_format_from_caps (caps);
if (!gst_video_info_from_caps (&info, caps)) {
GST_WARNING_OBJECT (pool, "failed getting video info from caps %"
GST_PTR_FORMAT, caps);
return FALSE;
}
width = GST_VIDEO_INFO_WIDTH (&info);
height = GST_VIDEO_INFO_HEIGHT (&info);
/* temporarily create a surface to get the pitch */
s_dsc.flags = DSDESC_PIXELFORMAT | DSDESC_WIDTH | DSDESC_HEIGHT;
s_dsc.pixelformat = pixel_format;
s_dsc.width = width;
s_dsc.height = height;
ret = dfbpool->dfbvideosink->dfb->CreateSurface (dfbpool->dfbvideosink->dfb,
&s_dsc, &surface);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (pool, "failed creating surface with format %s",
gst_dfbvideosink_get_format_name (pixel_format));
return FALSE;
}
ret = surface->Lock (surface, DSLF_READ, &data, &pitch);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (pool, "failed locking the surface");
surface->Release (surface);
return FALSE;
}
surface->Unlock (surface);
surface->Release (surface);
switch (GST_VIDEO_INFO_FORMAT (&info)) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_NV12:
size = pitch * height * 3 / 2;
break;
default:
size = pitch * height;
break;
}
gst_buffer_pool_config_set_params (config, caps, size, min_buffers,
max_buffers);
dfbpool->caps = gst_caps_ref (caps);
return GST_BUFFER_POOL_CLASS (gst_dfb_buffer_pool_parent_class)->set_config
(pool, config);
}
static void
gst_dfb_buffer_pool_free_buffer (GstBufferPool * bpool, GstBuffer * surface)
{
GstMetaDfbSurface *meta;
meta = GST_META_DFBSURFACE_GET (surface);
/* Release our internal surface */
if (meta->surface) {
if (meta->locked) {
meta->surface->Unlock (meta->surface);
meta->locked = FALSE;
}
meta->surface->Release (meta->surface);
}
if (meta->dfbvideosink)
/* Release the ref to our sink */
gst_object_unref (meta->dfbvideosink);
GST_BUFFER_POOL_CLASS (gst_dfb_buffer_pool_parent_class)->free_buffer (bpool,
surface);
}
static GstFlowReturn
gst_dfb_buffer_pool_alloc_buffer (GstBufferPool * bpool,
GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
{
GstDfbBufferPool *dfbpool = GST_DFB_BUFFER_POOL_CAST (bpool);
GstBuffer *surface;
GstMetaDfbSurface *meta;
GstStructure *structure;
DFBResult ret;
DFBSurfaceDescription s_dsc;
gpointer data;
gint pitch;
GstFlowReturn result = GST_FLOW_ERROR;
gsize alloc_size;
gsize offset[GST_VIDEO_MAX_PLANES] = { 0 };
gint stride[GST_VIDEO_MAX_PLANES] = { 0 };
gsize max_size;
gsize plane_size[GST_VIDEO_MAX_PLANES] = { 0 };
guint n_planes;
const gchar *str;
GstVideoFormat format;
gint i;
surface = gst_buffer_new ();
meta = GST_META_DFBSURFACE_ADD (surface);
/* Keep a ref to our sink */
meta->dfbvideosink = gst_object_ref (dfbpool->dfbvideosink);
/* Surface is not locked yet */
meta->locked = FALSE;
structure = gst_caps_get_structure (dfbpool->caps, 0);
if (!gst_structure_get_int (structure, "width", &meta->width) ||
!gst_structure_get_int (structure, "height", &meta->height)) {
GST_WARNING_OBJECT (bpool, "failed getting geometry from caps %"
GST_PTR_FORMAT, dfbpool->caps);
goto fallback;
}
/* Pixel format from caps */
meta->pixel_format = gst_dfbvideosink_get_format_from_caps (dfbpool->caps);
if (meta->pixel_format == DSPF_UNKNOWN) {
goto fallback;
}
if (!dfbpool->dfbvideosink->dfb) {
GST_DEBUG_OBJECT (bpool, "no DirectFB context to create a surface");
goto fallback;
}
/* Creating an internal surface which will be used as GstBuffer, we used
the detected pixel format and video dimensions */
s_dsc.flags = DSDESC_PIXELFORMAT | DSDESC_WIDTH | DSDESC_HEIGHT;
s_dsc.pixelformat = meta->pixel_format;
s_dsc.width = meta->width;
s_dsc.height = meta->height;
ret =
dfbpool->dfbvideosink->dfb->CreateSurface (dfbpool->dfbvideosink->dfb,
&s_dsc, &meta->surface);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (bpool, "failed creating a DirectFB surface");
meta->surface = NULL;
goto fallback;
}
/* Clearing surface */
meta->surface->Clear (meta->surface, 0x00, 0x00, 0x00, 0xFF);
/* Locking the surface to acquire the memory pointer */
meta->surface->Lock (meta->surface, DSLF_WRITE, &data, &pitch);
meta->locked = TRUE;
GST_DEBUG_OBJECT (bpool, "creating a %dx%d surface (%p) with %s "
"pixel format, line pitch %d", meta->width, meta->height, surface,
gst_dfbvideosink_get_format_name (meta->pixel_format), pitch);
structure = gst_caps_get_structure (dfbpool->caps, 0);
str = gst_structure_get_string (structure, "format");
if (str == NULL) {
GST_WARNING ("failed grabbing fourcc from caps %" GST_PTR_FORMAT,
dfbpool->caps);
return GST_FLOW_ERROR;
}
format = gst_video_format_from_string (str);
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
offset[1] = pitch * meta->height;
offset[2] = offset[1] + pitch / 2 * meta->height / 2;
stride[0] = pitch;
stride[1] = stride[2] = pitch / 2;
plane_size[0] = offset[1];
plane_size[1] = plane_size[2] = plane_size[0] / 4;
max_size = plane_size[0] * 3 / 2;
n_planes = 3;
break;
case GST_VIDEO_FORMAT_NV12:
offset[1] = pitch * meta->height;
stride[0] = stride[1] = pitch;
plane_size[0] = offset[1];
plane_size[1] = pitch * meta->height / 2;
max_size = plane_size[0] * 3 / 2;
n_planes = 2;
break;
default:
stride[0] = pitch;
plane_size[0] = max_size = pitch * meta->height;
n_planes = 1;
break;
}
for (i = 0; i < n_planes; i++) {
gst_buffer_append_memory (surface,
gst_memory_new_wrapped (0, data, max_size, offset[i], plane_size[i],
NULL, NULL));
}
gst_buffer_add_video_meta_full (surface, GST_VIDEO_FRAME_FLAG_NONE,
format, meta->width, meta->height, n_planes, offset, stride);
result = GST_FLOW_OK;
goto beach;
fallback:
/* We allocate a standard buffer ourselves to store it in our buffer pool,
this is an optimisation for memory allocation */
alloc_size = meta->width * meta->height;
surface = gst_buffer_new_allocate (NULL, alloc_size, NULL);
if (surface == NULL) {
GST_WARNING_OBJECT (bpool, "failed allocating a gstbuffer");
goto beach;
}
if (meta->surface) {
if (meta->locked) {
meta->surface->Unlock (meta->surface);
meta->locked = FALSE;
}
meta->surface->Release (meta->surface);
meta->surface = NULL;
}
GST_DEBUG_OBJECT (bpool, "allocating a buffer (%p) of %u bytes",
surface, (guint) alloc_size);
result = GST_FLOW_OK;
beach:
if (result != GST_FLOW_OK) {
gst_dfb_buffer_pool_free_buffer (bpool, surface);
*buffer = NULL;
} else
*buffer = surface;
return result;
}
static GstBufferPool *
gst_dfb_buffer_pool_new (GstDfbVideoSink * dfbvideosink)
{
GstDfbBufferPool *pool;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink), NULL);
pool = g_object_new (GST_TYPE_DFB_BUFFER_POOL, NULL);
g_object_ref_sink (pool);
pool->dfbvideosink = gst_object_ref (dfbvideosink);
GST_LOG_OBJECT (pool, "new dfb buffer pool %p", pool);
return GST_BUFFER_POOL_CAST (pool);
}
static void
gst_dfb_buffer_pool_finalize (GObject * object)
{
GstDfbBufferPool *pool = GST_DFB_BUFFER_POOL_CAST (object);
if (pool->caps)
gst_caps_unref (pool->caps);
gst_object_unref (pool->dfbvideosink);
G_OBJECT_CLASS (gst_dfb_buffer_pool_parent_class)->finalize (object);
}
static void
gst_dfb_buffer_pool_init (GstDfbBufferPool * pool)
{
/* No processing */
}
static void
gst_dfb_buffer_pool_class_init (GstDfbBufferPoolClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBufferPoolClass *gstbufferpool_class = (GstBufferPoolClass *) klass;
gobject_class->finalize = gst_dfb_buffer_pool_finalize;
gstbufferpool_class->alloc_buffer = gst_dfb_buffer_pool_alloc_buffer;
gstbufferpool_class->set_config = gst_dfb_buffer_pool_set_config;
gstbufferpool_class->free_buffer = gst_dfb_buffer_pool_free_buffer;
}
G_DEFINE_TYPE_WITH_CODE (GstDfbVideoSink, gst_dfbvideosink, GST_TYPE_VIDEO_SINK,
G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION,
gst_dfbvideosink_navigation_init);
G_IMPLEMENT_INTERFACE (GST_TYPE_COLOR_BALANCE,
gst_dfbvideosink_colorbalance_init));
#ifndef GST_DISABLE_GST_DEBUG
static const char *
gst_dfbvideosink_get_format_name (DFBSurfacePixelFormat format)
{
switch (format) {
case DSPF_ARGB1555:
return "ARGB1555";
case DSPF_RGB16:
return "RGB16";
case DSPF_RGB24:
return "RGB24";
case DSPF_RGB32:
return "RGB32";
case DSPF_ARGB:
return "ARGB";
case DSPF_A8:
return "A8";
case DSPF_YUY2:
return "YUY2";
case DSPF_RGB332:
return "RGB33";
case DSPF_UYVY:
return "UYVY";
case DSPF_I420:
return "I420";
case DSPF_YV12:
return "YV12";
case DSPF_LUT8:
return "LUT8";
case DSPF_ALUT44:
return "ALUT44";
case DSPF_AiRGB:
return "AiRGB";
case DSPF_A1:
return "A1";
case DSPF_NV12:
return "NV12";
case DSPF_NV16:
return "NV16";
case DSPF_ARGB2554:
return "ARGB2554";
case DSPF_ARGB4444:
return "ARGB4444";
case DSPF_NV21:
return "NV21";
default:
return "UNKNOWN";
}
}
#endif /* GST_DISABLE_GST_DEBUG */
static gpointer
gst_dfbvideosink_event_thread (GstDfbVideoSink * dfbvideosink)
{
DFBResult ret;
while (dfbvideosink->running) {
/* Wait for an event with a 50 ms timeout */
dfbvideosink->event_buffer->WaitForEventWithTimeout (dfbvideosink->
event_buffer, 0, 50);
/* Do we have an event ? */
ret = dfbvideosink->event_buffer->HasEvent (dfbvideosink->event_buffer);
if (ret == DFB_OK) {
DFBEvent event;
GST_DEBUG_OBJECT (dfbvideosink, "we have an event");
ret = dfbvideosink->event_buffer->GetEvent (dfbvideosink->event_buffer,
&event);
if (ret != DFB_OK) { /* Error */
GST_WARNING_OBJECT (dfbvideosink, "failed when getting event from "
"event buffer");
} else { /* Handle event */
if (event.input.type == DIET_KEYPRESS) {
switch (event.input.key_symbol) {
case DIKS_ESCAPE:
{
GST_ELEMENT_ERROR (dfbvideosink, RESOURCE, OPEN_WRITE,
("Video output device is gone."),
("We were running fullscreen and user "
"pressed the ESC key, stopping playback."));
}
default:
GST_DEBUG_OBJECT (dfbvideosink, "key press event %c !",
event.input.key_symbol);
gst_navigation_send_key_event (GST_NAVIGATION (dfbvideosink),
"key-press", "prout");
}
} else if (event.input.type == DIET_BUTTONPRESS) {
gint x, y;
dfbvideosink->layer->GetCursorPosition (dfbvideosink->layer, &x, &y);
GST_DEBUG_OBJECT (dfbvideosink, "button %d pressed at %dx%d",
event.input.button, x, y);
gst_navigation_send_mouse_event (GST_NAVIGATION (dfbvideosink),
"mouse-button-press", event.input.button, x, y);
} else if (event.input.type == DIET_BUTTONRELEASE) {
gint x, y;
dfbvideosink->layer->GetCursorPosition (dfbvideosink->layer, &x, &y);
GST_DEBUG_OBJECT (dfbvideosink, "button %d released at %dx%d",
event.input.button, x, y);
gst_navigation_send_mouse_event (GST_NAVIGATION (dfbvideosink),
"mouse-button-release", event.input.button, x, y);
} else if (event.input.type == DIET_AXISMOTION) {
gint x, y;
dfbvideosink->layer->GetCursorPosition (dfbvideosink->layer, &x, &y);
gst_navigation_send_mouse_event (GST_NAVIGATION (dfbvideosink),
"mouse-move", 0, x, y);
} else {
GST_WARNING_OBJECT (dfbvideosink, "unhandled event type %d",
event.input.type);
}
}
}
}
return NULL;
}
static DFBEnumerationResult
gst_dfbvideosink_enum_layers (DFBDisplayLayerID id,
DFBDisplayLayerDescription desc, void *data)
{
GstDfbVideoSink *dfbvideosink = NULL;
IDirectFBDisplayLayer *layer = NULL;
DFBDisplayLayerConfig dlc;
DFBResult ret;
gboolean backbuffer = FALSE;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (data), DFENUM_CANCEL);
dfbvideosink = GST_DFBVIDEOSINK (data);
GST_DEBUG_OBJECT (dfbvideosink, "inspecting display layer %d with name: %s",
id, desc.name);
if ((desc.type & DLTF_VIDEO) && (desc.caps & DLCAPS_SURFACE)) {
GST_DEBUG_OBJECT (dfbvideosink,
"this layer can handle live video and has a surface");
} else {
if (desc.caps & DLCAPS_SURFACE) {
GST_DEBUG_OBJECT (dfbvideosink,
"this layer can not handle live video but has a surface");
} else {
GST_DEBUG_OBJECT (dfbvideosink, "no we can't use that layer, really...");
goto beach;
}
}
ret = dfbvideosink->dfb->GetDisplayLayer (dfbvideosink->dfb, id, &layer);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed getting display layer %s",
desc.name);
goto beach;
}
ret = layer->GetConfiguration (layer, &dlc);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink,
"failed getting display layer configuration");
goto beach;
}
if ((dlc.flags & DLCONF_BUFFERMODE) && (dlc.buffermode & DLBM_FRONTONLY)) {
GST_DEBUG_OBJECT (dfbvideosink, "no backbuffer");
}
if ((dlc.flags & DLCONF_BUFFERMODE) && (dlc.buffermode & DLBM_BACKVIDEO)) {
GST_DEBUG_OBJECT (dfbvideosink, "backbuffer is in video memory");
backbuffer = TRUE;
}
if ((dlc.flags & DLCONF_BUFFERMODE) && (dlc.buffermode & DLBM_BACKSYSTEM)) {
GST_DEBUG_OBJECT (dfbvideosink, "backbuffer is in system memory");
backbuffer = TRUE;
}
if ((dlc.flags & DLCONF_BUFFERMODE) && (dlc.buffermode & DLBM_TRIPLE)) {
GST_DEBUG_OBJECT (dfbvideosink, "triple buffering");
backbuffer = TRUE;
}
/* If the primary is suitable we prefer using it */
if (dfbvideosink->layer_id != DLID_PRIMARY) {
GST_DEBUG_OBJECT (dfbvideosink, "selecting layer named %s", desc.name);
dfbvideosink->layer_id = id;
dfbvideosink->backbuffer = backbuffer;
} else {
GST_DEBUG_OBJECT (dfbvideosink, "layer %s is suitable but the primary "
"is currently selected and we prefer that one", desc.name);
}
beach:
if (layer) {
layer->Release (layer);
}
return DFENUM_OK;
}
static DFBEnumerationResult
gst_dfbvideosink_enum_vmodes (gint width, gint height, gint bpp, void *data)
{
GstDfbVideoSink *dfbvideosink = NULL;
GstDfbVMode *vmode = NULL;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (data), DFENUM_CANCEL);
dfbvideosink = GST_DFBVIDEOSINK (data);
GST_DEBUG_OBJECT (dfbvideosink, "adding video mode %dx%d at %d bpp", width,
height, bpp);
vmode = g_new0 (GstDfbVMode, 1);
vmode->width = width;
vmode->height = height;
vmode->bpp = bpp;
/* We need to know the maximum video geometry we can accept for the caps */
if (width > dfbvideosink->out_width) {
dfbvideosink->out_width = width;
}
if (height > dfbvideosink->out_height) {
dfbvideosink->out_height = height;
}
dfbvideosink->vmodes = g_slist_append (dfbvideosink->vmodes, vmode);
return DFENUM_OK;
}
static DFBEnumerationResult
gst_dfbvideosink_enum_devices (DFBInputDeviceID id,
DFBInputDeviceDescription desc, void *data)
{
GstDfbVideoSink *dfbvideosink = NULL;
IDirectFBInputDevice *device = NULL;
DFBResult ret;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (data), DFENUM_CANCEL);
dfbvideosink = GST_DFBVIDEOSINK (data);
GST_DEBUG_OBJECT (dfbvideosink, "detected input device %s from vendor %s",
desc.name, desc.vendor);
/* Get that input device */
ret = dfbvideosink->dfb->GetInputDevice (dfbvideosink->dfb, id, &device);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed when getting input device id %d",
id);
goto beach;
}
ret = device->AttachEventBuffer (device, dfbvideosink->event_buffer);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed when attaching input device "
"%d to our event buffer", id);
}
beach:
if (device) {
device->Release (device);
}
return DFENUM_OK;
}
static gboolean
gst_dfbvideosink_setup (GstDfbVideoSink * dfbvideosink)
{
DFBResult ret;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink), FALSE);
dfbvideosink->video_width = 0;
dfbvideosink->video_height = 0;
dfbvideosink->out_width = 0;
dfbvideosink->out_height = 0;
dfbvideosink->fps_d = 0;
dfbvideosink->fps_n = 0;
dfbvideosink->hw_scaling = FALSE;
dfbvideosink->backbuffer = FALSE;
dfbvideosink->pixel_format = DSPF_UNKNOWN;
/* If we do it all by ourself we create the DirectFB context, get the
primary layer and use a fullscreen configuration */
if (!dfbvideosink->ext_surface) {
GST_DEBUG_OBJECT (dfbvideosink, "no external surface, taking over "
"DirectFB fullscreen");
if (!dfbvideosink->dfb) {
DFBGraphicsDeviceDescription hw_caps;
char *argv[] = { (char *) "-", (char *) "--dfb:quiet",
(char *) "--dfb:no-sighandler", NULL
};
int argc = 3;
char **args;
GST_DEBUG_OBJECT (dfbvideosink, "initializing DirectFB");
args = argv;
ret = DirectFBInit (&argc, &args);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "DirectFB initialization failed");
goto beach;
}
ret = DirectFBCreate (&(dfbvideosink->dfb));
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed creating the DirectFB "
"main object");
goto beach;
}
/* Get Hardware capabilities */
ret = dfbvideosink->dfb->GetDeviceDescription (dfbvideosink->dfb,
&hw_caps);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed grabbing the hardware "
"capabilities");
goto beach;
}
GST_DEBUG_OBJECT (dfbvideosink, "video card %s from vendor %s detected "
"with %d bytes of video memory", hw_caps.name, hw_caps.vendor,
hw_caps.video_memory);
if (hw_caps.acceleration_mask & DFXL_BLIT) {
GST_DEBUG_OBJECT (dfbvideosink, "Blit is accelerated");
}
if (hw_caps.acceleration_mask & DFXL_STRETCHBLIT) {
GST_DEBUG_OBJECT (dfbvideosink, "StretchBlit is accelerated");
dfbvideosink->hw_scaling = TRUE;
} else {
GST_DEBUG_OBJECT (dfbvideosink, "StretchBlit is not accelerated");
dfbvideosink->hw_scaling = FALSE;
}
dfbvideosink->layer_id = -1;
/* Inspect all the Display layers */
dfbvideosink->dfb->EnumDisplayLayers (dfbvideosink->dfb,
gst_dfbvideosink_enum_layers, dfbvideosink);
/* Inspect all Video modes */
dfbvideosink->dfb->EnumVideoModes (dfbvideosink->dfb,
gst_dfbvideosink_enum_vmodes, dfbvideosink);
/* Create an event buffer for input */
dfbvideosink->dfb->CreateEventBuffer (dfbvideosink->dfb,
&dfbvideosink->event_buffer);
/* Inspect all Input devices */
dfbvideosink->dfb->EnumInputDevices (dfbvideosink->dfb,
gst_dfbvideosink_enum_devices, dfbvideosink);
/* Create a thread to handle those events */
dfbvideosink->event_thread = g_thread_new ("dfbvsink-events",
(GThreadFunc) gst_dfbvideosink_event_thread, dfbvideosink);
}
if (!dfbvideosink->layer) {
GList *channels_list = NULL;
DFBDisplayLayerDescription dl_desc;
/* Get the best Display Layer */
ret = dfbvideosink->dfb->GetDisplayLayer (dfbvideosink->dfb,
dfbvideosink->layer_id, &dfbvideosink->layer);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed getting display layer");
goto beach;
}
if (dfbvideosink->layer_mode == LAYER_MODE_EXCLUSIVE ||
dfbvideosink->layer_mode == LAYER_MODE_ADMINISTRATIVE)
ret = dfbvideosink->layer->SetCooperativeLevel (dfbvideosink->layer,
dfbvideosink->layer_mode);
else {
GST_ERROR_OBJECT (dfbvideosink, "invalid layer cooperative level");
goto beach;
}
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed setting display layer to "
"fullscreen mode");
goto beach;
}
dfbvideosink->layer->GetDescription (dfbvideosink->layer, &dl_desc);
/* Check that this layer is able to do colorbalance settings */
if (dl_desc.caps & DLCAPS_BRIGHTNESS) {
channels_list = g_list_append (channels_list, (char *) "BRIGHTNESS");
}
if (dl_desc.caps & DLCAPS_CONTRAST) {
channels_list = g_list_append (channels_list, (char *) "CONTRAST");
}
if (dl_desc.caps & DLCAPS_HUE) {
channels_list = g_list_append (channels_list, (char *) "HUE");
}
if (dl_desc.caps & DLCAPS_SATURATION) {
channels_list = g_list_append (channels_list, (char *) "SATURATION");
}
if (channels_list) {
GList *walk = channels_list;
/* Generate Color balance channel list */
while (walk) {
GstColorBalanceChannel *channel = NULL;
GST_DEBUG_OBJECT (dfbvideosink, "adding %s as a colorbalance channel",
(const char *) walk->data);
channel = g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL, NULL);
channel->label = g_strdup (walk->data);
channel->min_value = 0x0000;
channel->max_value = 0xFFFF;
dfbvideosink->cb_channels = g_list_append (dfbvideosink->cb_channels,
channel);
walk = g_list_next (walk);
}
/* If the colorbalance settings have not been touched we get current
values as defaults and update our internal variables */
if (!dfbvideosink->cb_changed) {
DFBColorAdjustment cb_adjust;
ret = dfbvideosink->layer->GetColorAdjustment (dfbvideosink->layer,
&cb_adjust);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed when getting color "
"adjustment from layer");
}
if (cb_adjust.flags & DCAF_BRIGHTNESS) {
dfbvideosink->brightness = cb_adjust.brightness;
} else {
dfbvideosink->brightness = 0x8000;
}
if (cb_adjust.flags & DCAF_CONTRAST) {
dfbvideosink->contrast = cb_adjust.contrast;
} else {
dfbvideosink->contrast = 0x8000;
}
if (cb_adjust.flags & DCAF_HUE) {
dfbvideosink->hue = cb_adjust.hue;
} else {
dfbvideosink->hue = 0x8000;
}
if (cb_adjust.flags & DCAF_SATURATION) {
dfbvideosink->saturation = cb_adjust.saturation;
} else {
dfbvideosink->saturation = 0x8000;
}
GST_DEBUG_OBJECT (dfbvideosink, "brightness %d, contrast %d, "
"hue %d, saturation %d", dfbvideosink->brightness,
dfbvideosink->contrast, dfbvideosink->hue,
dfbvideosink->saturation);
}
g_list_free (channels_list);
gst_dfbvideosink_update_colorbalance (dfbvideosink);
}
dfbvideosink->layer->SetBackgroundColor (dfbvideosink->layer,
0x00, 0x00, 0x00, 0xFF);
#if (DIRECTFB_VER >= GST_DFBVIDEOSINK_VER (1,6,0))
if (dfbvideosink->layer_mode == LAYER_MODE_ADMINISTRATIVE)
#endif
dfbvideosink->layer->EnableCursor (dfbvideosink->layer, TRUE);
GST_DEBUG_OBJECT (dfbvideosink, "getting primary surface");
dfbvideosink->layer->GetSurface (dfbvideosink->layer,
&dfbvideosink->primary);
dfbvideosink->primary->SetBlittingFlags (dfbvideosink->primary,
DSBLIT_NOFX);
}
dfbvideosink->primary->GetPixelFormat (dfbvideosink->primary,
&dfbvideosink->pixel_format);
} else {
DFBSurfaceCapabilities s_caps;
GST_DEBUG_OBJECT (dfbvideosink, "getting pixel format from foreign "
"surface %p", dfbvideosink->ext_surface);
dfbvideosink->ext_surface->GetPixelFormat (dfbvideosink->ext_surface,
&dfbvideosink->pixel_format);
dfbvideosink->ext_surface->GetSize (dfbvideosink->ext_surface,
&dfbvideosink->out_width, &dfbvideosink->out_height);
dfbvideosink->ext_surface->GetCapabilities (dfbvideosink->ext_surface,
&s_caps);
if ((s_caps & DSCAPS_DOUBLE) || (s_caps & DSCAPS_TRIPLE)) {
dfbvideosink->backbuffer = TRUE;
} else {
dfbvideosink->backbuffer = FALSE;
}
GST_DEBUG_OBJECT (dfbvideosink, "external surface is %dx%d and uses %s "
"pixel format", dfbvideosink->out_width, dfbvideosink->out_height,
gst_dfbvideosink_get_format_name (dfbvideosink->pixel_format));
}
dfbvideosink->setup = TRUE;
beach:
return dfbvideosink->setup;
}
static void
gst_dfbvideosink_cleanup (GstDfbVideoSink * dfbvideosink)
{
g_return_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink));
GST_DEBUG_OBJECT (dfbvideosink, "cleaning up DirectFB environment");
/* Wait for our event thread */
if (dfbvideosink->event_thread) {
g_thread_join (dfbvideosink->event_thread);
dfbvideosink->event_thread = NULL;
}
if (dfbvideosink->event_buffer) {
dfbvideosink->event_buffer->Release (dfbvideosink->event_buffer);
dfbvideosink->event_buffer = NULL;
}
if (dfbvideosink->vmodes) {
GSList *walk = dfbvideosink->vmodes;
while (walk) {
g_free (walk->data);
walk = g_slist_next (walk);
}
g_slist_free (dfbvideosink->vmodes);
dfbvideosink->vmodes = NULL;
}
if (dfbvideosink->cb_channels) {
GList *walk = dfbvideosink->cb_channels;
while (walk) {
GstColorBalanceChannel *channel = walk->data;
g_object_unref (channel);
walk = g_list_next (walk);
}
g_list_free (dfbvideosink->cb_channels);
dfbvideosink->cb_channels = NULL;
}
if (dfbvideosink->pool) {
gst_object_unref (dfbvideosink->pool);
dfbvideosink->pool = NULL;
}
if (dfbvideosink->primary) {
dfbvideosink->primary->Release (dfbvideosink->primary);
dfbvideosink->primary = NULL;
}
if (dfbvideosink->layer) {
#if (DIRECTFB_VER >= GST_DFBVIDEOSINK_VER (1,6,0))
if (dfbvideosink->layer_mode == LAYER_MODE_ADMINISTRATIVE)
#endif
dfbvideosink->layer->EnableCursor (dfbvideosink->layer, FALSE);
dfbvideosink->layer->Release (dfbvideosink->layer);
dfbvideosink->layer = NULL;
}
if (dfbvideosink->dfb) {
dfbvideosink->dfb->Release (dfbvideosink->dfb);
dfbvideosink->dfb = NULL;
}
dfbvideosink->setup = FALSE;
}
static DFBSurfacePixelFormat
gst_dfbvideosink_get_format_from_caps (GstCaps * caps)
{
GstStructure *structure;
DFBSurfacePixelFormat pixel_format = DSPF_UNKNOWN;
const gchar *str;
GstVideoFormat format;
g_return_val_if_fail (GST_IS_CAPS (caps), DSPF_UNKNOWN);
structure = gst_caps_get_structure (caps, 0);
str = gst_structure_get_string (structure, "format");
if (str == NULL) {
GST_WARNING ("failed grabbing fourcc from caps %" GST_PTR_FORMAT, caps);
return DSPF_UNKNOWN;
}
format = gst_video_format_from_string (str);
switch (format) {
case GST_VIDEO_FORMAT_RGB16:
pixel_format = DSPF_RGB16;
break;
case GST_VIDEO_FORMAT_RGB:
pixel_format = DSPF_RGB24;
break;
case GST_VIDEO_FORMAT_xRGB:
pixel_format = DSPF_RGB32;
break;
case GST_VIDEO_FORMAT_ARGB:
pixel_format = DSPF_ARGB;
break;
case GST_VIDEO_FORMAT_I420:
pixel_format = DSPF_I420;
break;
case GST_VIDEO_FORMAT_YV12:
pixel_format = DSPF_YV12;
break;
case GST_VIDEO_FORMAT_YUY2:
pixel_format = DSPF_YUY2;
break;
case GST_VIDEO_FORMAT_UYVY:
pixel_format = DSPF_UYVY;
break;
case GST_VIDEO_FORMAT_NV12:
pixel_format = DSPF_NV12;
break;
default:
GST_WARNING ("unhandled pixel format %s", str);
return DSPF_UNKNOWN;
}
return pixel_format;
}
static GstCaps *
gst_dfbvideosink_get_caps_from_format (DFBSurfacePixelFormat format)
{
const char *fourcc;
g_return_val_if_fail (format != DSPF_UNKNOWN, NULL);
switch (format) {
case DSPF_RGB16:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_RGB16);
break;
case DSPF_RGB24:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_RGB);
break;
case DSPF_RGB32:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_xRGB);
break;
case DSPF_ARGB:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_ARGB);
break;
case DSPF_YUY2:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_YUY2);
break;
case DSPF_UYVY:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_UYVY);
break;
case DSPF_I420:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_I420);
break;
case DSPF_YV12:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_YV12);
break;
case DSPF_NV12:
fourcc = gst_video_format_to_string (GST_VIDEO_FORMAT_NV12);
break;
default:
GST_WARNING ("unknown pixel format %s",
gst_dfbvideosink_get_format_name (format));
return NULL;
}
return gst_caps_new_simple ("video/x-raw", "format", G_TYPE_STRING, fourcc,
NULL);
}
static gboolean
gst_dfbvideosink_can_blit_from_format (GstDfbVideoSink * dfbvideosink,
DFBSurfacePixelFormat format, gboolean accelerated)
{
gboolean res = FALSE;
DFBResult ret;
IDirectFBSurface *surface = NULL;
DFBSurfaceDescription s_dsc;
DFBAccelerationMask mask;
DFBDisplayLayerConfig dlc, prev_dlc;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink), FALSE);
/* Create a surface of desired format */
s_dsc.flags = DSDESC_PIXELFORMAT | DSDESC_WIDTH | DSDESC_HEIGHT;
s_dsc.pixelformat = format;
s_dsc.width = 10;
s_dsc.height = 10;
ret = dfbvideosink->dfb->CreateSurface (dfbvideosink->dfb, &s_dsc, &surface);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed creating surface with format %s",
gst_dfbvideosink_get_format_name (format));
goto beach;
}
/* Backup layer configuration */
ret = dfbvideosink->layer->GetConfiguration (dfbvideosink->layer, &prev_dlc);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed when getting current layer "
"configuration");
goto beach;
}
/* Test configuration of the layer to this pixel format */
dlc.flags = DLCONF_PIXELFORMAT;
dlc.pixelformat = format;
ret = dfbvideosink->layer->TestConfiguration (dfbvideosink->layer, &dlc,
NULL);
if (ret != DFB_OK) {
GST_DEBUG_OBJECT (dfbvideosink, "our layer refuses to operate in pixel "
"format %s", gst_dfbvideosink_get_format_name (format));
goto beach;
}
ret = dfbvideosink->layer->SetConfiguration (dfbvideosink->layer, &dlc);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "our layer refuses to operate in pixel "
"format, though this format was successfully tested earlied %s",
gst_dfbvideosink_get_format_name (format));
goto beach;
}
ret = dfbvideosink->primary->GetAccelerationMask (dfbvideosink->primary,
surface, &mask);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed getting acceleration mask");
goto beach;
}
/* Blitting from this format to our primary is accelerated */
if ((mask & DFXL_BLIT) && accelerated) {
GST_DEBUG_OBJECT (dfbvideosink, "blitting from format %s to our primary "
"is accelerated", gst_dfbvideosink_get_format_name (format));
res = TRUE;
} else if (!accelerated) {
GST_DEBUG_OBJECT (dfbvideosink, "blitting from format %s to our primary "
"is not accelerated", gst_dfbvideosink_get_format_name (format));
res = TRUE;
}
/* Restore original layer configuration */
ret = dfbvideosink->layer->SetConfiguration (dfbvideosink->layer, &prev_dlc);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed when restoring layer "
"configuration");
goto beach;
}
beach:
if (surface) {
surface->Release (surface);
}
return res;
}
static gboolean
gst_dfbvideosink_get_best_vmode (GstDfbVideoSink * dfbvideosink, gint v_width,
gint v_height, GstDfbVMode * best_vmode)
{
GSList *walk = NULL;
gboolean ret = FALSE;
gint width, height, bpp;
GstDfbVMode *vmode = NULL;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink), FALSE);
if (!dfbvideosink->vmodes) {
goto beach;
}
walk = dfbvideosink->vmodes;
vmode = (GstDfbVMode *) walk->data;
/* First mode */
width = vmode->width;
height = vmode->height;
bpp = vmode->bpp;
while (walk) {
gint wgap, hgap, best_wgap, best_hgap;
vmode = (GstDfbVMode *) walk->data;
/* What are the gaps */
wgap = abs (vmode->width - v_width);
hgap = abs (vmode->height - v_height);
best_wgap = abs (width - v_width);
best_hgap = abs (height - v_height);
/* If this mode is better we ll use that */
if (wgap + hgap < best_wgap + best_hgap) {
width = vmode->width;
height = vmode->height;
bpp = vmode->bpp;
}
walk = g_slist_next (walk);
}
GST_DEBUG_OBJECT (dfbvideosink, "found video mode %dx%d for input at %dx%d",
width, height, v_width, v_height);
best_vmode->width = width;
best_vmode->height = height;
best_vmode->bpp = bpp;
ret = TRUE;
beach:
return ret;
}
static GstCaps *
gst_dfbvideosink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstDfbVideoSink *dfbvideosink;
GstCaps *caps = NULL;
GstCaps *returned_caps;
gint i;
dfbvideosink = GST_DFBVIDEOSINK (bsink);
if (!dfbvideosink->setup) {
GstCaps *tcaps =
gst_pad_get_pad_template_caps (GST_VIDEO_SINK_PAD (dfbvideosink));
caps = gst_caps_copy (tcaps);
gst_caps_unref (tcaps);
GST_DEBUG_OBJECT (dfbvideosink, "getcaps called and we are not setup yet, "
"returning template %" GST_PTR_FORMAT, caps);
goto beach;
} else {
GST_DEBUG_OBJECT (dfbvideosink, "getcaps called, checking our internal "
"format");
if (dfbvideosink->ext_surface) {
/* We are not rendering to our own surface, returning this surface's
* pixel format */
caps = gst_dfbvideosink_get_caps_from_format (dfbvideosink->pixel_format);
} else {
/* Try some formats */
gboolean accelerated = TRUE;
caps = gst_caps_new_empty ();
do {
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_RGB16,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_RGB16));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_RGB24,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_RGB24));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_RGB32,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_RGB32));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_ARGB,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_ARGB));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_NV12,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_NV12));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_YUY2,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_YUY2));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_UYVY,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_UYVY));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_I420,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_I420));
}
if (gst_dfbvideosink_can_blit_from_format (dfbvideosink, DSPF_YV12,
accelerated)) {
gst_caps_append (caps,
gst_dfbvideosink_get_caps_from_format (DSPF_YV12));
}
accelerated = !accelerated;
} while (accelerated == FALSE);
}
}
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure = gst_caps_get_structure (caps, i);
gst_structure_set (structure,
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
if (!dfbvideosink->hw_scaling && dfbvideosink->par) {
int nom, den;
nom = gst_value_get_fraction_numerator (dfbvideosink->par);
den = gst_value_get_fraction_denominator (dfbvideosink->par);
gst_structure_set (structure, "pixel-aspect-ratio",
GST_TYPE_FRACTION, nom, den, NULL);
}
}
beach:
if (filter) {
returned_caps = gst_caps_intersect_full (filter, caps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
} else
returned_caps = caps;
GST_DEBUG_OBJECT (dfbvideosink, "returning our caps %" GST_PTR_FORMAT,
returned_caps);
return returned_caps;
}
static gboolean
gst_dfbvideosink_setcaps (GstBaseSink * bsink, GstCaps * caps)
{
GstDfbVideoSink *dfbvideosink;
GstStructure *structure;
gboolean res, result = FALSE;
gint video_width, video_height;
const GValue *framerate;
DFBSurfacePixelFormat pixel_format = DSPF_UNKNOWN;
dfbvideosink = GST_DFBVIDEOSINK (bsink);
structure = gst_caps_get_structure (caps, 0);
res = gst_structure_get_int (structure, "width", &video_width);
res &= gst_structure_get_int (structure, "height", &video_height);
framerate = gst_structure_get_value (structure, "framerate");
res &= (framerate != NULL);
if (!res) {
goto beach;
}
dfbvideosink->fps_n = gst_value_get_fraction_numerator (framerate);
dfbvideosink->fps_d = gst_value_get_fraction_denominator (framerate);
pixel_format = gst_dfbvideosink_get_format_from_caps (caps);
GST_DEBUG_OBJECT (dfbvideosink, "setcaps called with %" GST_PTR_FORMAT, caps);
GST_DEBUG_OBJECT (dfbvideosink, "our format is: %dx%d %s video at %d/%d fps",
video_width, video_height,
gst_dfbvideosink_get_format_name (pixel_format), dfbvideosink->fps_n,
dfbvideosink->fps_d);
if (dfbvideosink->hw_scaling && dfbvideosink->par) {
gint video_par_n, video_par_d; /* video's PAR */
gint display_par_n, display_par_d; /* display's PAR */
gint num, den;
GValue display_ratio = { 0, }; /* display w/h ratio */
const GValue *caps_par;
/* get aspect ratio from caps if it's present, and
* convert video width and height to a display width and height
* using wd / hd = wv / hv * PARv / PARd
* the ratio wd / hd will be stored in display_ratio */
g_value_init (&display_ratio, GST_TYPE_FRACTION);
/* get video's PAR */
caps_par = gst_structure_get_value (structure, "pixel-aspect-ratio");
if (caps_par) {
video_par_n = gst_value_get_fraction_numerator (caps_par);
video_par_d = gst_value_get_fraction_denominator (caps_par);
} else {
video_par_n = 1;
video_par_d = 1;
}
/* get display's PAR */
if (dfbvideosink->par) {
display_par_n = gst_value_get_fraction_numerator (dfbvideosink->par);
display_par_d = gst_value_get_fraction_denominator (dfbvideosink->par);
} else {
display_par_n = 1;
display_par_d = 1;
}
gst_value_set_fraction (&display_ratio,
video_width * video_par_n * display_par_d,
video_height * video_par_d * display_par_n);
num = gst_value_get_fraction_numerator (&display_ratio);
den = gst_value_get_fraction_denominator (&display_ratio);
GST_DEBUG_OBJECT (dfbvideosink,
"video width/height: %dx%d, calculated display ratio: %d/%d",
video_width, video_height, num, den);
/* now find a width x height that respects this display ratio.
* prefer those that have one of w/h the same as the incoming video
* using wd / hd = num / den */
/* start with same height, because of interlaced video */
/* check hd / den is an integer scale factor, and scale wd with the PAR */
if (video_height % den == 0) {
GST_DEBUG_OBJECT (dfbvideosink, "keeping video height");
GST_VIDEO_SINK_WIDTH (dfbvideosink) = video_height * num / den;
GST_VIDEO_SINK_HEIGHT (dfbvideosink) = video_height;
} else if (video_width % num == 0) {
GST_DEBUG_OBJECT (dfbvideosink, "keeping video width");
GST_VIDEO_SINK_WIDTH (dfbvideosink) = video_width;
GST_VIDEO_SINK_HEIGHT (dfbvideosink) = video_width * den / num;
} else {
GST_DEBUG_OBJECT (dfbvideosink, "approximating while keeping height");
GST_VIDEO_SINK_WIDTH (dfbvideosink) = video_height * num / den;
GST_VIDEO_SINK_HEIGHT (dfbvideosink) = video_height;
}
GST_DEBUG_OBJECT (dfbvideosink, "scaling to %dx%d",
GST_VIDEO_SINK_WIDTH (dfbvideosink),
GST_VIDEO_SINK_HEIGHT (dfbvideosink));
} else {
if (dfbvideosink->par) {
const GValue *par;
par = gst_structure_get_value (structure, "pixel-aspect-ratio");
if (par) {
if (gst_value_compare (par, dfbvideosink->par) != GST_VALUE_EQUAL) {
goto wrong_aspect;
}
}
}
GST_VIDEO_SINK_WIDTH (dfbvideosink) = video_width;
GST_VIDEO_SINK_HEIGHT (dfbvideosink) = video_height;
}
/* Try to adapt the video mode to the video geometry */
if (dfbvideosink->dfb) {
DFBResult ret;
GstDfbVMode vmode;
DFBDisplayLayerConfig lc;
GST_DEBUG_OBJECT (dfbvideosink, "trying to adapt the video mode to video "
"geometry");
/* Set video mode and layer configuration appropriately */
if (gst_dfbvideosink_get_best_vmode (dfbvideosink,
GST_VIDEO_SINK_WIDTH (dfbvideosink),
GST_VIDEO_SINK_HEIGHT (dfbvideosink), &vmode)) {
gint width, height, bpp;
width = vmode.width;
height = vmode.height;
bpp = vmode.bpp;
GST_DEBUG_OBJECT (dfbvideosink, "setting video mode to %dx%d at %d bpp",
width, height, bpp);
ret = dfbvideosink->dfb->SetVideoMode (dfbvideosink->dfb, width,
height, bpp);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed setting video mode %dx%d "
"at %d bpp", width, height, bpp);
}
}
lc.flags = DLCONF_PIXELFORMAT;
lc.pixelformat = pixel_format;
ret = dfbvideosink->layer->SetConfiguration (dfbvideosink->layer, &lc);
if (ret != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed setting layer pixelformat "
"to %s", gst_dfbvideosink_get_format_name (pixel_format));
} else {
dfbvideosink->layer->GetConfiguration (dfbvideosink->layer, &lc);
dfbvideosink->out_width = lc.width;
dfbvideosink->out_height = lc.height;
dfbvideosink->pixel_format = lc.pixelformat;
GST_DEBUG_OBJECT (dfbvideosink, "layer %d now configured to %dx%d %s",
dfbvideosink->layer_id, lc.width, lc.height,
gst_dfbvideosink_get_format_name (lc.pixelformat));
}
}
if (pixel_format != dfbvideosink->pixel_format) {
GST_WARNING_OBJECT (dfbvideosink, "setcaps sent us a different pixel "
"format %s", gst_dfbvideosink_get_format_name (pixel_format));
goto beach;
}
dfbvideosink->video_width = video_width;
dfbvideosink->video_height = video_height;
if (dfbvideosink->pool) {
if (gst_buffer_pool_is_active (dfbvideosink->pool))
gst_buffer_pool_set_active (dfbvideosink->pool, FALSE);
gst_object_unref (dfbvideosink->pool);
}
/* create a new buffer pool of DirectFB surface */
dfbvideosink->pool = gst_dfb_buffer_pool_new (dfbvideosink);
structure = gst_buffer_pool_get_config (dfbvideosink->pool);
gst_buffer_pool_config_set_params (structure, caps, 0, 0, 0);
if (!gst_buffer_pool_set_config (dfbvideosink->pool, structure)) {
GST_WARNING_OBJECT (dfbvideosink,
"failed to set buffer pool configuration");
goto beach;
}
if (!gst_buffer_pool_set_active (dfbvideosink->pool, TRUE)) {
GST_WARNING_OBJECT (dfbvideosink, "failed to activate buffer pool");
goto beach;
}
result = TRUE;
beach:
return result;
/* ERRORS */
wrong_aspect:
{
GST_INFO_OBJECT (dfbvideosink, "pixel aspect ratio does not match");
return FALSE;
}
}
static GstStateChangeReturn
gst_dfbvideosink_change_state (GstElement * element, GstStateChange transition)
{
GstDfbVideoSink *dfbvideosink;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
dfbvideosink = GST_DFBVIDEOSINK (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
dfbvideosink->running = TRUE;
if (!dfbvideosink->setup) {
if (!gst_dfbvideosink_setup (dfbvideosink)) {
GST_DEBUG_OBJECT (dfbvideosink, "setup failed when changing state "
"from NULL to READY");
GST_ELEMENT_ERROR (dfbvideosink, RESOURCE, OPEN_WRITE,
(NULL), ("Failed initializing DirectFB system"));
return GST_STATE_CHANGE_FAILURE;
}
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
/* Blank surface if we have one */
if (dfbvideosink->ext_surface) {
dfbvideosink->ext_surface->Clear (dfbvideosink->ext_surface,
0x00, 0x00, 0x00, 0xFF);
}
if (dfbvideosink->primary) {
dfbvideosink->primary->Clear (dfbvideosink->primary, 0x00, 0x00,
0x00, 0xFF);
}
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
dfbvideosink->fps_d = 0;
dfbvideosink->fps_n = 0;
dfbvideosink->video_width = 0;
dfbvideosink->video_height = 0;
if (dfbvideosink->pool)
gst_buffer_pool_set_active (dfbvideosink->pool, FALSE);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
dfbvideosink->running = FALSE;
if (dfbvideosink->setup) {
gst_dfbvideosink_cleanup (dfbvideosink);
}
break;
default:
break;
}
return ret;
}
static void
gst_dfbvideosink_get_times (GstBaseSink * bsink, GstBuffer * buf,
GstClockTime * start, GstClockTime * end)
{
GstDfbVideoSink *dfbvideosink;
dfbvideosink = GST_DFBVIDEOSINK (bsink);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
*start = GST_BUFFER_TIMESTAMP (buf);
if (GST_BUFFER_DURATION_IS_VALID (buf)) {
*end = *start + GST_BUFFER_DURATION (buf);
} else {
if (dfbvideosink->fps_n > 0) {
*end =
*start + (GST_SECOND * dfbvideosink->fps_d) / dfbvideosink->fps_n;
}
}
}
}
static GstFlowReturn
gst_dfbvideosink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
{
GstDfbVideoSink *dfbvideosink = NULL;
DFBResult res;
GstVideoRectangle dst = { 0, };
GstVideoRectangle src = { 0, };
GstVideoRectangle result;
GstFlowReturn ret = GST_FLOW_OK;
gboolean mem_cpy = TRUE;
GstMetaDfbSurface *meta;
dfbvideosink = GST_DFBVIDEOSINK (bsink);
if (!dfbvideosink->setup) {
ret = GST_FLOW_EOS;
goto beach;
}
meta = GST_META_DFBSURFACE_GET (buf);
/* Is that a buffer we allocated ourselves ? */
if (meta != NULL) {
/* Does it have a surface ? */
if (meta->surface) {
mem_cpy = FALSE;
GST_DEBUG_OBJECT (dfbvideosink, "we have a buffer (%p) we allocated "
"ourselves and it has a surface, no memcpy then", buf);
} else {
/* No surface, that's a malloc */
GST_DEBUG_OBJECT (dfbvideosink, "we have a buffer (%p) we allocated "
"ourselves but it does not hold a surface", buf);
}
} else {
/* Not our baby */
GST_DEBUG_OBJECT (dfbvideosink, "we have a buffer (%p) we did not allocate",
buf);
}
if (mem_cpy) {
IDirectFBSurface *dest = NULL, *surface = NULL;
guint8 *data;
gint dest_pitch, line;
GstStructure *structure;
GstCaps *caps;
gint plane;
GstVideoInfo src_info;
GstVideoFrame src_frame;
const gchar *str;
GstVideoFormat format;
guint offset[GST_VIDEO_MAX_PLANES] = { 0 };
guint stride[GST_VIDEO_MAX_PLANES] = { 0 };
/* As we are not blitting no acceleration is possible. If the surface is
* too small we do clipping, if it's too big we center. Theoretically as
* we are using propose_allocation, there's a chance that we have been
* able to do reverse caps negotiation */
if (dfbvideosink->ext_surface) {
surface = dfbvideosink->ext_surface;
GST_DEBUG_OBJECT (dfbvideosink, "memcpy to an external surface "
"subsurface (vsync %d)", dfbvideosink->vsync);
} else {
surface = dfbvideosink->primary;
GST_DEBUG_OBJECT (dfbvideosink, "memcpy to a primary subsurface "
"(vsync %d)", dfbvideosink->vsync);
}
/* Get the video frame geometry from the buffer caps */
caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (bsink));
structure = gst_caps_get_structure (caps, 0);
if (structure) {
gst_structure_get_int (structure, "width", &src.w);
gst_structure_get_int (structure, "height", &src.h);
} else {
src.w = dfbvideosink->video_width;
src.h = dfbvideosink->video_height;
}
gst_caps_unref (caps);
surface->GetSize (surface, &dst.w, &dst.h);
/* Center / Clip */
gst_video_sink_center_rect (src, dst, &result, FALSE);
res =
surface->GetSubSurface (surface, (DFBRectangle *) (void *) &result,
&dest);
if (res != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed when getting a sub surface");
ret = GST_FLOW_EOS;
goto beach;
}
/* If we are not using Flip we wait for VSYNC before blit */
if (!dfbvideosink->backbuffer && dfbvideosink->vsync) {
dfbvideosink->layer->WaitForSync (dfbvideosink->layer);
}
res = dest->Lock (dest, DSLF_WRITE, (void *) &data, &dest_pitch);
if (res != DFB_OK) {
GST_WARNING_OBJECT (dfbvideosink, "failed locking the external "
"subsurface for writing");
ret = GST_FLOW_ERROR;
goto beach;
}
caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (bsink));
if (!gst_video_info_from_caps (&src_info, caps)) {
GST_WARNING_OBJECT (dfbvideosink, "failed getting video info");
gst_caps_unref (caps);
ret = GST_FLOW_ERROR;
goto beach;
}
str = gst_structure_get_string (structure, "format");
if (str == NULL) {
GST_WARNING ("failed grabbing fourcc from caps %" GST_PTR_FORMAT, caps);
gst_caps_unref (caps);
ret = GST_FLOW_ERROR;
goto beach;
}
format = gst_video_format_from_string (str);
gst_caps_unref (caps);
if (!gst_video_frame_map (&src_frame, &src_info, buf, GST_MAP_READ)) {
GST_WARNING_OBJECT (dfbvideosink, "failed mapping frame");
ret = GST_FLOW_ERROR;
goto beach;
}
switch (format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
offset[1] = dest_pitch * ((dfbvideosink->out_height - result.y) +
result.y / 4);
offset[2] = offset[1] + dest_pitch * dfbvideosink->out_height / 4;
stride[0] = dest_pitch;
stride[1] = stride[2] = dest_pitch / 2;
break;
case GST_VIDEO_FORMAT_NV12:
offset[1] = dest_pitch * (dfbvideosink->out_height - result.y / 2);
stride[0] = stride[1] = dest_pitch;
break;
default:
stride[0] = dest_pitch;
break;
}
line = 0;
for (plane = 0; plane < src_info.finfo->n_planes; plane++) {
guint plane_h;
guint plane_line;
guint8 *w_buf;
guint size;
w_buf = data + offset[plane];
plane_h = GST_VIDEO_FRAME_COMP_HEIGHT (&src_frame, plane);
size = MIN (src_info.stride[plane], stride[plane]);
/* Write each line respecting subsurface pitch */
for (plane_line = 0; line < result.h || plane_line < plane_h;
line++, plane_line++) {
/* We do clipping */
memcpy (w_buf, (gchar *) src_frame.data[plane] +
(plane_line * src_info.stride[plane]), size);
w_buf += stride[plane];
}
}
gst_video_frame_unmap (&src_frame);
dest->Unlock (dest);
dest->Release (dest);
if (dfbvideosink->backbuffer) {
if (dfbvideosink->vsync) {
surface->Flip (surface, NULL, DSFLIP_ONSYNC);
} else {
surface->Flip (surface, NULL, DSFLIP_NONE);
}
}
} else {
/* Else we will [Stretch]Blit to our primary */
GST_DEBUG_OBJECT (dfbvideosink, "blitting to a primary surface (vsync %d)",
dfbvideosink->vsync);
src.w = GST_VIDEO_SINK_WIDTH (dfbvideosink);
src.h = GST_VIDEO_SINK_HEIGHT (dfbvideosink);
dfbvideosink->primary->GetSize (dfbvideosink->primary, &dst.w, &dst.h);
/* Unlocking surface before blit */
if (meta->locked) {
meta->surface->Unlock (meta->surface);
meta->locked = FALSE;
}
gst_video_sink_center_rect (src, dst, &result, dfbvideosink->hw_scaling);
/* If we are not using Flip we wait for VSYNC before blit */
if (!dfbvideosink->backbuffer && dfbvideosink->vsync) {
dfbvideosink->layer->WaitForSync (dfbvideosink->layer);
}
if (dfbvideosink->hw_scaling) {
dfbvideosink->primary->StretchBlit (dfbvideosink->primary,
meta->surface, NULL, (DFBRectangle *) (void *) &result);
} else {
DFBRectangle clip;
clip.x = clip.y = 0;
clip.w = result.w;
clip.h = result.h;
dfbvideosink->primary->Blit (dfbvideosink->primary, meta->surface,
&clip, result.x, result.y);
}
if (dfbvideosink->backbuffer) {
if (dfbvideosink->vsync) {
dfbvideosink->primary->Flip (dfbvideosink->primary, NULL,
DSFLIP_ONSYNC);
} else {
dfbvideosink->primary->Flip (dfbvideosink->primary, NULL, DSFLIP_NONE);
}
}
}
beach:
return ret;
}
static void
gst_dfbvideosink_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstDfbVideoSink *dfbvideosink = GST_DFBVIDEOSINK (navigation);
GstEvent *event;
GstVideoRectangle dst = { 0, };
GstVideoRectangle src = { 0, };
GstVideoRectangle result;
double x, y, old_x, old_y;
GstPad *pad = NULL;
src.w = GST_VIDEO_SINK_WIDTH (dfbvideosink);
src.h = GST_VIDEO_SINK_HEIGHT (dfbvideosink);
dst.w = dfbvideosink->out_width;
dst.h = dfbvideosink->out_height;
gst_video_sink_center_rect (src, dst, &result, dfbvideosink->hw_scaling);
event = gst_event_new_navigation (structure);
/* Our coordinates can be wrong here if we centered the video */
/* Converting pointer coordinates to the non scaled geometry */
if (gst_structure_get_double (structure, "pointer_x", &old_x)) {
x = old_x;
if (x >= result.x && x <= (result.x + result.w)) {
x -= result.x;
x *= dfbvideosink->video_width;
x /= result.w;
} else {
x = 0;
}
GST_DEBUG_OBJECT (dfbvideosink, "translated navigation event x "
"coordinate from %f to %f", old_x, x);
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE, x, NULL);
}
if (gst_structure_get_double (structure, "pointer_y", &old_y)) {
y = old_y;
if (y >= result.y && y <= (result.y + result.h)) {
y -= result.y;
y *= dfbvideosink->video_height;
y /= result.h;
} else {
y = 0;
}
GST_DEBUG_OBJECT (dfbvideosink, "translated navigation event y "
"coordinate from %fd to %fd", old_y, y);
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE, y, NULL);
}
pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (dfbvideosink));
if (GST_IS_PAD (pad) && GST_IS_EVENT (event)) {
if (!gst_pad_send_event (pad, gst_event_ref (event))) {
/* If upstream didn't handle the event we'll post a message with it
* for the application in case it wants to do something with it */
gst_element_post_message (GST_ELEMENT_CAST (dfbvideosink),
gst_navigation_message_new_event (GST_OBJECT_CAST (dfbvideosink),
event));
}
gst_event_unref (event);
gst_object_unref (pad);
}
}
static void
gst_dfbvideosink_navigation_init (GstNavigationInterface * iface)
{
iface->send_event = gst_dfbvideosink_navigation_send_event;
}
static void
gst_dfbvideosink_update_colorbalance (GstDfbVideoSink * dfbvideosink)
{
g_return_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink));
if (dfbvideosink->layer) {
DFBColorAdjustment cb_adjust;
cb_adjust.flags = DCAF_NONE;
if (dfbvideosink->brightness >= 0) {
cb_adjust.flags |= DCAF_BRIGHTNESS;
}
if (dfbvideosink->contrast >= 0) {
cb_adjust.flags |= DCAF_CONTRAST;
}
if (dfbvideosink->hue >= 0) {
cb_adjust.flags |= DCAF_HUE;
}
if (dfbvideosink->saturation >= 0) {
cb_adjust.flags |= DCAF_SATURATION;
}
cb_adjust.brightness = dfbvideosink->brightness;
cb_adjust.contrast = dfbvideosink->contrast;
cb_adjust.hue = dfbvideosink->hue;
cb_adjust.saturation = dfbvideosink->saturation;
GST_DEBUG_OBJECT (dfbvideosink, "updating colorbalance: flags %d "
"brightness %d contrast %d hue %d saturation %d", cb_adjust.flags,
cb_adjust.brightness, cb_adjust.contrast, cb_adjust.hue,
cb_adjust.saturation);
dfbvideosink->layer->SetColorAdjustment (dfbvideosink->layer, &cb_adjust);
}
}
static const GList *
gst_dfbvideosink_colorbalance_list_channels (GstColorBalance * balance)
{
GstDfbVideoSink *dfbvideosink = GST_DFBVIDEOSINK (balance);
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink), NULL);
return dfbvideosink->cb_channels;
}
static void
gst_dfbvideosink_colorbalance_set_value (GstColorBalance * balance,
GstColorBalanceChannel * channel, gint value)
{
GstDfbVideoSink *dfbvideosink = GST_DFBVIDEOSINK (balance);
g_return_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink));
g_return_if_fail (channel->label != NULL);
dfbvideosink->cb_changed = TRUE;
if (g_ascii_strcasecmp (channel->label, "HUE") == 0) {
dfbvideosink->hue = value;
} else if (g_ascii_strcasecmp (channel->label, "SATURATION") == 0) {
dfbvideosink->saturation = value;
} else if (g_ascii_strcasecmp (channel->label, "CONTRAST") == 0) {
dfbvideosink->contrast = value;
} else if (g_ascii_strcasecmp (channel->label, "BRIGHTNESS") == 0) {
dfbvideosink->brightness = value;
} else {
GST_WARNING_OBJECT (dfbvideosink, "got an unknown channel %s",
channel->label);
return;
}
gst_dfbvideosink_update_colorbalance (dfbvideosink);
}
static gint
gst_dfbvideosink_colorbalance_get_value (GstColorBalance * balance,
GstColorBalanceChannel * channel)
{
GstDfbVideoSink *dfbvideosink = GST_DFBVIDEOSINK (balance);
gint value = 0;
g_return_val_if_fail (GST_IS_DFBVIDEOSINK (dfbvideosink), 0);
g_return_val_if_fail (channel->label != NULL, 0);
if (g_ascii_strcasecmp (channel->label, "HUE") == 0) {
value = dfbvideosink->hue;
} else if (g_ascii_strcasecmp (channel->label, "SATURATION") == 0) {
value = dfbvideosink->saturation;
} else if (g_ascii_strcasecmp (channel->label, "CONTRAST") == 0) {
value = dfbvideosink->contrast;
} else if (g_ascii_strcasecmp (channel->label, "BRIGHTNESS") == 0) {
value = dfbvideosink->brightness;
} else {
GST_WARNING_OBJECT (dfbvideosink, "got an unknown channel %s",
channel->label);
}
return value;
}
static GstColorBalanceType
gst_dfbvideosink_colorbalance_get_balance_type (GstColorBalance * balance)
{
return GST_COLOR_BALANCE_HARDWARE;
}
static void
gst_dfbvideosink_colorbalance_init (GstColorBalanceInterface * iface)
{
iface->list_channels = gst_dfbvideosink_colorbalance_list_channels;
iface->set_value = gst_dfbvideosink_colorbalance_set_value;
iface->get_value = gst_dfbvideosink_colorbalance_get_value;
iface->get_balance_type = gst_dfbvideosink_colorbalance_get_balance_type;
}
/* Properties */
static void
gst_dfbvideosink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstDfbVideoSink *dfbvideosink;
g_return_if_fail (GST_IS_DFBVIDEOSINK (object));
dfbvideosink = GST_DFBVIDEOSINK (object);
switch (prop_id) {
case ARG_SURFACE:
dfbvideosink->ext_surface = g_value_get_pointer (value);
break;
case ARG_HUE:
dfbvideosink->hue = g_value_get_int (value);
dfbvideosink->cb_changed = TRUE;
gst_dfbvideosink_update_colorbalance (dfbvideosink);
break;
case ARG_CONTRAST:
dfbvideosink->contrast = g_value_get_int (value);
dfbvideosink->cb_changed = TRUE;
gst_dfbvideosink_update_colorbalance (dfbvideosink);
break;
case ARG_BRIGHTNESS:
dfbvideosink->brightness = g_value_get_int (value);
dfbvideosink->cb_changed = TRUE;
gst_dfbvideosink_update_colorbalance (dfbvideosink);
break;
case ARG_SATURATION:
dfbvideosink->saturation = g_value_get_int (value);
dfbvideosink->cb_changed = TRUE;
gst_dfbvideosink_update_colorbalance (dfbvideosink);
break;
case ARG_PIXEL_ASPECT_RATIO:
g_free (dfbvideosink->par);
dfbvideosink->par = g_new0 (GValue, 1);
g_value_init (dfbvideosink->par, GST_TYPE_FRACTION);
if (!g_value_transform (value, dfbvideosink->par)) {
GST_WARNING_OBJECT (dfbvideosink, "Could not transform string to "
"aspect ratio");
gst_value_set_fraction (dfbvideosink->par, 1, 1);
}
GST_DEBUG_OBJECT (dfbvideosink, "set PAR to %d/%d",
gst_value_get_fraction_numerator (dfbvideosink->par),
gst_value_get_fraction_denominator (dfbvideosink->par));
break;
case ARG_VSYNC:
dfbvideosink->vsync = g_value_get_boolean (value);
break;
case ARG_LAYER_MODE:
dfbvideosink->layer_mode = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_dfbvideosink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstDfbVideoSink *dfbvideosink;
g_return_if_fail (GST_IS_DFBVIDEOSINK (object));
dfbvideosink = GST_DFBVIDEOSINK (object);
switch (prop_id) {
case ARG_HUE:
g_value_set_int (value, dfbvideosink->hue);
break;
case ARG_CONTRAST:
g_value_set_int (value, dfbvideosink->contrast);
break;
case ARG_BRIGHTNESS:
g_value_set_int (value, dfbvideosink->brightness);
break;
case ARG_SATURATION:
g_value_set_int (value, dfbvideosink->saturation);
break;
case ARG_PIXEL_ASPECT_RATIO:
if (dfbvideosink->par)
g_value_transform (dfbvideosink->par, value);
break;
case ARG_VSYNC:
g_value_set_boolean (value, dfbvideosink->vsync);
break;
case ARG_LAYER_MODE:
g_value_set_enum (value, dfbvideosink->layer_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_dfbvideosink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
{
GstDfbVideoSink *dfbvideosink;
GstBufferPool *pool;
GstCaps *caps;
gboolean need_pool;
guint size = 0;
dfbvideosink = GST_DFBVIDEOSINK (bsink);
gst_query_parse_allocation (query, &caps, &need_pool);
if ((pool = dfbvideosink->pool))
gst_object_ref (pool);
if (pool != NULL) {
GstCaps *pcaps;
GstStructure *config;
/* we had a pool, check caps */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
GST_DEBUG_OBJECT (dfbvideosink,
"buffer pool configuration caps %" GST_PTR_FORMAT, pcaps);
if (!gst_caps_is_equal (caps, pcaps)) {
gst_structure_free (config);
gst_object_unref (pool);
GST_WARNING_OBJECT (dfbvideosink, "pool has different caps");
return FALSE;
}
gst_structure_free (config);
}
gst_query_add_allocation_pool (query, pool, size, 1, 0);
/* we also support various metadata */
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
if (pool)
gst_object_unref (pool);
return TRUE;
}
/* =========================================== */
/* */
/* Init & Class init */
/* */
/* =========================================== */
static void
gst_dfbvideosink_finalize (GObject * object)
{
GstDfbVideoSink *dfbvideosink;
dfbvideosink = GST_DFBVIDEOSINK (object);
if (dfbvideosink->par) {
g_free (dfbvideosink->par);
dfbvideosink->par = NULL;
}
if (dfbvideosink->setup) {
gst_dfbvideosink_cleanup (dfbvideosink);
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_dfbvideosink_init (GstDfbVideoSink * dfbvideosink)
{
dfbvideosink->pool = NULL;
dfbvideosink->video_height = dfbvideosink->out_height = 0;
dfbvideosink->video_width = dfbvideosink->out_width = 0;
dfbvideosink->fps_d = 0;
dfbvideosink->fps_n = 0;
dfbvideosink->dfb = NULL;
dfbvideosink->vmodes = NULL;
dfbvideosink->layer_id = -1;
dfbvideosink->layer = NULL;
dfbvideosink->primary = NULL;
dfbvideosink->event_buffer = NULL;
dfbvideosink->event_thread = NULL;
dfbvideosink->ext_surface = NULL;
dfbvideosink->pixel_format = DSPF_UNKNOWN;
dfbvideosink->hw_scaling = FALSE;
dfbvideosink->backbuffer = FALSE;
dfbvideosink->vsync = TRUE;
dfbvideosink->setup = FALSE;
dfbvideosink->running = FALSE;
dfbvideosink->cb_channels = NULL;
dfbvideosink->brightness = -1;
dfbvideosink->contrast = -1;
dfbvideosink->hue = -1;
dfbvideosink->saturation = -1;
dfbvideosink->par = NULL;
dfbvideosink->layer_mode = DEFAULT_LAYER_MODE;
}
static void
gst_dfbvideosink_class_init (GstDfbVideoSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstbasesink_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesink_class = (GstBaseSinkClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_dfbvideosink_finalize;
gobject_class->set_property = gst_dfbvideosink_set_property;
gobject_class->get_property = gst_dfbvideosink_get_property;
g_object_class_install_property (gobject_class, ARG_SURFACE,
g_param_spec_pointer ("surface", "Surface",
"The target surface for video",
G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_CONTRAST,
g_param_spec_int ("contrast", "Contrast", "The contrast of the video",
0x0000, 0xFFFF, 0x8000, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_BRIGHTNESS,
g_param_spec_int ("brightness", "Brightness",
"The brightness of the video", 0x0000, 0xFFFF, 0x8000,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_HUE,
g_param_spec_int ("hue", "Hue", "The hue of the video", 0x0000, 0xFFFF,
0x8000, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_SATURATION,
g_param_spec_int ("saturation", "Saturation",
"The saturation of the video", 0x0000, 0xFFFF, 0x8000,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_PIXEL_ASPECT_RATIO,
g_param_spec_string ("pixel-aspect-ratio", "Pixel Aspect Ratio",
"The pixel aspect ratio of the device", "1/1",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_VSYNC,
g_param_spec_boolean ("vsync", "Vertical synchronisation",
"Wait for next vertical sync to draw frames", TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_LAYER_MODE,
g_param_spec_enum ("layer-mode",
"The layer cooperative level (administrative or exclusive)",
"The cooperative level handling the access permission (set this to "
"'administrative' when the cursor is required)",
gst_dfbvideosink_layer_mode_get_type (), DEFAULT_LAYER_MODE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (gstelement_class,
"DirectFB video sink", "Sink/Video", "A DirectFB based videosink",
"Julien Moutte <julien@moutte.net>");
gst_element_class_add_static_pad_template (gstelement_class,
&gst_dfbvideosink_sink_template_factory);
gstelement_class->change_state = gst_dfbvideosink_change_state;
gstbasesink_class->get_caps = gst_dfbvideosink_getcaps;
gstbasesink_class->set_caps = gst_dfbvideosink_setcaps;
gstbasesink_class->get_times = gst_dfbvideosink_get_times;
gstbasesink_class->preroll = gst_dfbvideosink_show_frame;
gstbasesink_class->render = gst_dfbvideosink_show_frame;
gstbasesink_class->propose_allocation = gst_dfbvideosink_propose_allocation;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "dfbvideosink", GST_RANK_MARGINAL,
GST_TYPE_DFBVIDEOSINK))
return FALSE;
GST_DEBUG_CATEGORY_INIT (dfbvideosink_debug, "dfbvideosink", 0,
"DirectFB video sink element");
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
dfbvideosink,
"DirectFB video output plugin",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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