gboolean need_alignment;
};
-static void gst_xvimage_meta_free (GstXvImageMeta * meta, GstBuffer * buffer);
-
-/* xvimage metadata */
-GType
-gst_xvimage_meta_api_get_type (void)
-{
- static volatile GType type;
- static const gchar *tags[] =
- { "memory", "size", "colorspace", "orientation", NULL };
-
- if (g_once_init_enter (&type)) {
- GType _type = gst_meta_api_type_register ("GstXvImageMetaAPI", tags);
- g_once_init_leave (&type, _type);
- }
- return type;
-}
-
-const GstMetaInfo *
-gst_xvimage_meta_get_info (void)
-{
- static const GstMetaInfo *xvimage_meta_info = NULL;
-
- if (g_once_init_enter (&xvimage_meta_info)) {
- const GstMetaInfo *meta =
- gst_meta_register (GST_XVIMAGE_META_API_TYPE, "GstXvImageMeta",
- sizeof (GstXvImageMeta), (GstMetaInitFunction) NULL,
- (GstMetaFreeFunction) gst_xvimage_meta_free,
- (GstMetaTransformFunction) NULL);
- g_once_init_leave (&xvimage_meta_info, meta);
- }
- return xvimage_meta_info;
-}
-
/* X11 stuff */
static gboolean error_caught = FALSE;
return 0;
}
-static GstXvImageMeta *
-gst_buffer_add_xvimage_meta (GstBuffer * buffer, GstXvImageBufferPool * xvpool)
+static GstMemory *
+gst_xvimage_memory_alloc (GstAllocator * allocator, gsize size,
+ GstAllocationParams * params)
+{
+ return NULL;
+}
+
+static void
+gst_xvimage_memory_free (GstAllocator * allocator, GstMemory * gmem)
+{
+ GstXvImageMemory *mem = (GstXvImageMemory *) gmem;
+ GstXvImageSink *xvimagesink;
+
+ if (gmem->parent)
+ goto sub_mem;
+
+ xvimagesink = mem->sink;
+
+ GST_DEBUG_OBJECT (xvimagesink, "free memory %p", mem);
+
+ /* Hold the object lock to ensure the XContext doesn't disappear */
+ GST_OBJECT_LOCK (xvimagesink);
+ /* We might have some buffers destroyed after changing state to NULL */
+ if (xvimagesink->xcontext == NULL) {
+ GST_DEBUG_OBJECT (xvimagesink, "Destroying XvImage after Xcontext");
+#ifdef HAVE_XSHM
+ /* Need to free the shared memory segment even if the x context
+ * was already cleaned up */
+ if (mem->SHMInfo.shmaddr != ((void *) -1)) {
+ shmdt (mem->SHMInfo.shmaddr);
+ }
+#endif
+ if (mem->xvimage)
+ XFree (mem->xvimage);
+ goto beach;
+ }
+
+ g_mutex_lock (&xvimagesink->x_lock);
+
+#ifdef HAVE_XSHM
+ if (xvimagesink->xcontext->use_xshm) {
+ if (mem->SHMInfo.shmaddr != ((void *) -1)) {
+ GST_DEBUG_OBJECT (xvimagesink, "XServer ShmDetaching from 0x%x id 0x%lx",
+ mem->SHMInfo.shmid, mem->SHMInfo.shmseg);
+ XShmDetach (xvimagesink->xcontext->disp, &mem->SHMInfo);
+ XSync (xvimagesink->xcontext->disp, FALSE);
+ shmdt (mem->SHMInfo.shmaddr);
+ mem->SHMInfo.shmaddr = (void *) -1;
+ }
+ if (mem->xvimage)
+ XFree (mem->xvimage);
+ } else
+#endif /* HAVE_XSHM */
+ {
+ if (mem->xvimage) {
+ g_free (mem->xvimage->data);
+ XFree (mem->xvimage);
+ }
+ }
+
+ XSync (xvimagesink->xcontext->disp, FALSE);
+
+ g_mutex_unlock (&xvimagesink->x_lock);
+
+beach:
+ GST_OBJECT_UNLOCK (xvimagesink);
+
+ gst_object_unref (mem->sink);
+
+sub_mem:
+ g_slice_free (GstXvImageMemory, mem);
+}
+
+static gpointer
+xvimage_memory_map (GstXvImageMemory * mem, gsize maxsize, GstMapFlags flags)
+{
+ return mem->xvimage->data + mem->parent.offset;
+}
+
+static gboolean
+xvimage_memory_unmap (GstXvImageMemory * mem)
+{
+ return TRUE;
+}
+
+static GstXvImageMemory *
+xvimage_memory_share (GstXvImageMemory * mem, gssize offset, gsize size)
+{
+ GstXvImageMemory *sub;
+ GstMemory *parent;
+
+ /* We can only share the complete memory */
+ if (offset != 0)
+ return NULL;
+ if (size != -1 && size != mem->size)
+ return NULL;
+
+ /* find the real parent */
+ if ((parent = mem->parent.parent) == NULL)
+ parent = (GstMemory *) mem;
+
+ if (size == -1)
+ size = mem->parent.size - offset;
+
+ /* the shared memory is always readonly */
+ sub = g_slice_new (GstXvImageMemory);
+
+ gst_memory_init (GST_MEMORY_CAST (sub), GST_MINI_OBJECT_FLAGS (parent) |
+ GST_MINI_OBJECT_FLAG_LOCK_READONLY, g_object_ref (mem->parent.allocator),
+ &mem->parent, mem->parent.maxsize, mem->parent.align,
+ mem->parent.offset + offset, size);
+ sub->sink = mem->sink;
+ sub->xvimage = mem->xvimage;
+ sub->SHMInfo = mem->SHMInfo;
+ sub->x = mem->x;
+ sub->y = mem->y;
+ sub->width = mem->width;
+ sub->height = mem->height;
+
+ return sub;
+}
+
+typedef GstAllocator GstXvImageMemoryAllocator;
+typedef GstAllocatorClass GstXvImageMemoryAllocatorClass;
+
+GType xvimage_memory_allocator_get_type (void);
+G_DEFINE_TYPE (GstXvImageMemoryAllocator, xvimage_memory_allocator,
+ GST_TYPE_ALLOCATOR);
+
+#define GST_XVIMAGE_ALLOCATOR_NAME "xvimage"
+#define GST_TYPE_XVIMAGE_MEMORY_ALLOCATOR (xvimage_memory_allocator_get_type())
+#define GST_IS_XVIMAGE_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_XVIMAGE_MEMORY_ALLOCATOR))
+
+static void
+xvimage_memory_allocator_class_init (GstXvImageMemoryAllocatorClass * klass)
+{
+ GstAllocatorClass *allocator_class;
+
+ allocator_class = (GstAllocatorClass *) klass;
+
+ allocator_class->alloc = gst_xvimage_memory_alloc;
+ allocator_class->free = gst_xvimage_memory_free;
+}
+
+static void
+xvimage_memory_allocator_init (GstXvImageMemoryAllocator * allocator)
+{
+ GstAllocator *alloc = GST_ALLOCATOR_CAST (allocator);
+
+ alloc->mem_type = GST_XVIMAGE_ALLOCATOR_NAME;
+ alloc->mem_map = (GstMemoryMapFunction) xvimage_memory_map;
+ alloc->mem_unmap = (GstMemoryUnmapFunction) xvimage_memory_unmap;
+ alloc->mem_share = (GstMemoryShareFunction) xvimage_memory_share;
+ /* fallback copy and is_span */
+
+ GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
+}
+
+static GstMemory *
+xvimage_memory_alloc (GstXvImageBufferPool * xvpool)
{
GstXvImageSink *xvimagesink;
int (*handler) (Display *, XErrorEvent *);
gboolean success = FALSE;
GstXContext *xcontext;
- GstXvImageMeta *meta;
gint width, height, im_format, align = 15, offset;
GstXvImageBufferPoolPrivate *priv;
+ GstXvImageMemory *mem;
priv = xvpool->priv;
xvimagesink = xvpool->sink;
height = priv->padded_height;
im_format = priv->im_format;
- meta =
- (GstXvImageMeta *) gst_buffer_add_meta (buffer, GST_XVIMAGE_META_INFO,
- NULL);
+ mem = g_slice_new (GstXvImageMemory);
+
#ifdef HAVE_XSHM
- meta->SHMInfo.shmaddr = ((void *) -1);
- meta->SHMInfo.shmid = -1;
+ mem->SHMInfo.shmaddr = ((void *) -1);
+ mem->SHMInfo.shmid = -1;
#endif
- meta->x = priv->align.padding_left;
- meta->y = priv->align.padding_top;
- meta->width = priv->info.width;
- meta->height = priv->info.height;
- meta->sink = gst_object_ref (xvimagesink);
- meta->im_format = im_format;
-
- GST_DEBUG_OBJECT (xvimagesink, "creating image %p (%dx%d)", buffer,
+ mem->x = priv->align.padding_left;
+ mem->y = priv->align.padding_top;
+ mem->width = priv->info.width;
+ mem->height = priv->info.height;
+ mem->sink = gst_object_ref (xvimagesink);
+ mem->im_format = im_format;
+
+ GST_DEBUG_OBJECT (xvimagesink, "creating image %p (%dx%d)", mem,
width, height);
g_mutex_lock (&xvimagesink->x_lock);
if (xcontext->use_xshm) {
int expected_size;
- meta->xvimage = XvShmCreateImage (xcontext->disp,
- xcontext->xv_port_id, im_format, NULL, width, height, &meta->SHMInfo);
- if (!meta->xvimage || error_caught) {
+ mem->xvimage = XvShmCreateImage (xcontext->disp,
+ xcontext->xv_port_id, im_format, NULL, width, height, &mem->SHMInfo);
+ if (!mem->xvimage || error_caught) {
g_mutex_unlock (&xvimagesink->x_lock);
/* Reset error flag */
}
/* we have to use the returned data_size for our shm size */
- meta->size = meta->xvimage->data_size;
+ mem->size = mem->xvimage->data_size;
GST_LOG_OBJECT (xvimagesink, "XShm image size is %" G_GSIZE_FORMAT,
- meta->size);
+ mem->size);
/* calculate the expected size. This is only for sanity checking the
* number we get from X. */
expected_size = offsets[2] + pitches[2] * GST_ROUND_UP_2 (height) / 2;
- for (plane = 0; plane < meta->xvimage->num_planes; plane++) {
+ for (plane = 0; plane < mem->xvimage->num_planes; plane++) {
GST_DEBUG_OBJECT (xvimagesink,
"Plane %u has a expected pitch of %d bytes, " "offset of %d",
plane, pitches[plane], offsets[plane]);
expected_size = 0;
break;
}
- if (expected_size != 0 && meta->size != expected_size) {
+ if (expected_size != 0 && mem->size != expected_size) {
GST_WARNING_OBJECT (xvimagesink,
"unexpected XShm image size (got %" G_GSIZE_FORMAT ", expected %d)",
- meta->size, expected_size);
+ mem->size, expected_size);
}
/* Be verbose about our XvImage stride */
{
guint plane;
- for (plane = 0; plane < meta->xvimage->num_planes; plane++) {
+ for (plane = 0; plane < mem->xvimage->num_planes; plane++) {
GST_DEBUG_OBJECT (xvimagesink, "Plane %u has a pitch of %d bytes, "
- "offset of %d", plane, meta->xvimage->pitches[plane],
- meta->xvimage->offsets[plane]);
+ "offset of %d", plane, mem->xvimage->pitches[plane],
+ mem->xvimage->offsets[plane]);
}
}
/* get shared memory */
- meta->SHMInfo.shmid =
- shmget (IPC_PRIVATE, meta->size + align, IPC_CREAT | 0777);
- if (meta->SHMInfo.shmid == -1)
+ mem->SHMInfo.shmid =
+ shmget (IPC_PRIVATE, mem->size + align, IPC_CREAT | 0777);
+ if (mem->SHMInfo.shmid == -1)
goto shmget_failed;
/* attach */
- meta->SHMInfo.shmaddr = shmat (meta->SHMInfo.shmid, NULL, 0);
- if (meta->SHMInfo.shmaddr == ((void *) -1))
+ mem->SHMInfo.shmaddr = shmat (mem->SHMInfo.shmid, NULL, 0);
+ if (mem->SHMInfo.shmaddr == ((void *) -1))
goto shmat_failed;
/* now we can set up the image data */
- meta->xvimage->data = meta->SHMInfo.shmaddr;
- meta->SHMInfo.readOnly = FALSE;
+ mem->xvimage->data = mem->SHMInfo.shmaddr;
+ mem->SHMInfo.readOnly = FALSE;
- if (XShmAttach (xcontext->disp, &meta->SHMInfo) == 0)
+ if (XShmAttach (xcontext->disp, &mem->SHMInfo) == 0)
goto xattach_failed;
XSync (xcontext->disp, FALSE);
/* Delete the shared memory segment as soon as we everyone is attached.
* This way, it will be deleted as soon as we detach later, and not
* leaked if we crash. */
- shmctl (meta->SHMInfo.shmid, IPC_RMID, NULL);
+ shmctl (mem->SHMInfo.shmid, IPC_RMID, NULL);
GST_DEBUG_OBJECT (xvimagesink, "XServer ShmAttached to 0x%x, id 0x%lx",
- meta->SHMInfo.shmid, meta->SHMInfo.shmseg);
+ mem->SHMInfo.shmid, mem->SHMInfo.shmseg);
} else
no_xshm:
#endif /* HAVE_XSHM */
{
- meta->xvimage = XvCreateImage (xcontext->disp,
+ mem->xvimage = XvCreateImage (xcontext->disp,
xcontext->xv_port_id, im_format, NULL, width, height);
- if (!meta->xvimage || error_caught)
+ if (!mem->xvimage || error_caught)
goto create_failed;
/* we have to use the returned data_size for our image size */
- meta->size = meta->xvimage->data_size;
- meta->xvimage->data = g_malloc (meta->size + align);
+ mem->size = mem->xvimage->data_size;
+ mem->xvimage->data = g_malloc (mem->size + align);
XSync (xcontext->disp, FALSE);
}
- if ((offset = ((guintptr) meta->xvimage->data & align)))
+ if ((offset = ((guintptr) mem->xvimage->data & align)))
offset = (align + 1) - offset;
GST_DEBUG_OBJECT (xvimagesink, "memory %p, align %d, offset %d",
- meta->xvimage->data, align, offset);
+ mem->xvimage->data, align, offset);
/* Reset error handler */
error_caught = FALSE;
XSetErrorHandler (handler);
- gst_buffer_append_memory (buffer,
- gst_memory_new_wrapped (GST_MEMORY_FLAG_NO_SHARE, meta->xvimage->data,
- meta->size + align, offset, meta->size, NULL, NULL));
+ gst_memory_init (GST_MEMORY_CAST (mem), 0, g_object_ref (xvpool->allocator),
+ NULL, mem->size + align, align, offset, mem->size);
g_mutex_unlock (&xvimagesink->x_lock);
success = TRUE;
beach:
- if (!success)
- meta = NULL;
+ if (!success) {
+ g_slice_free (GstXvImageMemory, mem);
+ mem = NULL;
+ }
- return meta;
+ return GST_MEMORY_CAST (mem);
/* ERRORS */
create_failed:
("Failed to create output image buffer of %dx%d pixels",
width, height),
("could not get shared memory of %" G_GSIZE_FORMAT " bytes",
- meta->size));
+ mem->size));
goto beach;
}
shmat_failed:
("Failed to create output image buffer of %dx%d pixels",
width, height), ("Failed to shmat: %s", g_strerror (errno)));
/* Clean up the shared memory segment */
- shmctl (meta->SHMInfo.shmid, IPC_RMID, NULL);
+ shmctl (mem->SHMInfo.shmid, IPC_RMID, NULL);
goto beach;
}
xattach_failed:
{
/* Clean up the shared memory segment */
- shmctl (meta->SHMInfo.shmid, IPC_RMID, NULL);
+ shmctl (mem->SHMInfo.shmid, IPC_RMID, NULL);
g_mutex_unlock (&xvimagesink->x_lock);
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
#endif
}
-static void
-gst_xvimage_meta_free (GstXvImageMeta * meta, GstBuffer * buffer)
-{
- GstXvImageSink *xvimagesink;
-
- xvimagesink = meta->sink;
-
- GST_DEBUG_OBJECT (xvimagesink, "free meta on buffer %p", buffer);
-
- /* Hold the object lock to ensure the XContext doesn't disappear */
- GST_OBJECT_LOCK (xvimagesink);
- /* We might have some buffers destroyed after changing state to NULL */
- if (xvimagesink->xcontext == NULL) {
- GST_DEBUG_OBJECT (xvimagesink, "Destroying XvImage after Xcontext");
-#ifdef HAVE_XSHM
- /* Need to free the shared memory segment even if the x context
- * was already cleaned up */
- if (meta->SHMInfo.shmaddr != ((void *) -1)) {
- shmdt (meta->SHMInfo.shmaddr);
- }
-#endif
- if (meta->xvimage)
- XFree (meta->xvimage);
- goto beach;
- }
-
- g_mutex_lock (&xvimagesink->x_lock);
-
-#ifdef HAVE_XSHM
- if (xvimagesink->xcontext->use_xshm) {
- if (meta->SHMInfo.shmaddr != ((void *) -1)) {
- GST_DEBUG_OBJECT (xvimagesink, "XServer ShmDetaching from 0x%x id 0x%lx",
- meta->SHMInfo.shmid, meta->SHMInfo.shmseg);
- XShmDetach (xvimagesink->xcontext->disp, &meta->SHMInfo);
- XSync (xvimagesink->xcontext->disp, FALSE);
- shmdt (meta->SHMInfo.shmaddr);
- meta->SHMInfo.shmaddr = (void *) -1;
- }
- if (meta->xvimage)
- XFree (meta->xvimage);
- } else
-#endif /* HAVE_XSHM */
- {
- if (meta->xvimage) {
- g_free (meta->xvimage->data);
- XFree (meta->xvimage);
- }
- }
-
- XSync (xvimagesink->xcontext->disp, FALSE);
-
- g_mutex_unlock (&xvimagesink->x_lock);
-
-beach:
- GST_OBJECT_UNLOCK (xvimagesink);
-
- gst_object_unref (meta->sink);
-}
-
#ifdef HAVE_XSHM
/* This function checks that it is actually really possible to create an image
using XShm */
GstXvImageBufferPoolPrivate *priv = xvpool->priv;
GstVideoInfo *info;
GstBuffer *xvimage;
- GstXvImageMeta *meta;
+ GstMemory *mem;
info = &priv->info;
xvimage = gst_buffer_new ();
- meta = gst_buffer_add_xvimage_meta (xvimage, xvpool);
- if (meta == NULL) {
+ mem = xvimage_memory_alloc (xvpool);
+ if (mem == NULL) {
gst_buffer_unref (xvimage);
goto no_buffer;
}
+ gst_buffer_append_memory (xvimage, mem);
if (priv->add_metavideo) {
GST_DEBUG_OBJECT (pool, "adding GstVideoMeta");
pool = g_object_new (GST_TYPE_XVIMAGE_BUFFER_POOL, NULL);
pool->sink = gst_object_ref (xvimagesink);
+ pool->allocator = g_object_new (GST_TYPE_XVIMAGE_MEMORY_ALLOCATOR, NULL);
GST_LOG_OBJECT (pool, "new XvImage buffer pool %p", pool);
if (priv->caps)
gst_caps_unref (priv->caps);
gst_object_unref (pool->sink);
+ g_object_unref (pool->allocator);
G_OBJECT_CLASS (gst_xvimage_buffer_pool_parent_class)->finalize (object);
}
projects / platform / upstream / gstreamer.git / blobdiff