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glmemory: use the plane offsets to compute the size of the data pointer

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Certain elements expect that there be a certain number of lines
that they can write into.  e.g. for odd heights, I420, YV12, NV12,
NV21 (and others) Y lines are expected to have exactly twice the
number of U/UV lines.

https://bugzilla.gnome.org/show_bug.cgi?id=733717
This commit is contained in:
Matthew Waters 2014-07-31 15:18:04 +10:00 committed by Tim-Philipp Müller
parent c216799b20
commit 9426c0793e
1 changed files with 14 additions and 5 deletions
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19
gst-libs/gst/gl/gstglmemory.c
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@ -345,6 +345,15 @@ _get_plane_height (GstVideoInfo * info, guint plane)
return GST_VIDEO_INFO_HEIGHT (info);
}
static inline gsize
_get_plane_data_size (GstVideoInfo * info, guint plane)
{
if (GST_VIDEO_INFO_N_PLANES (info) == plane + 1)
return info->offset[0] + info->size - info->offset[plane];
return info->offset[plane + 1] - info->offset[plane];
}
typedef struct _GenTexture
{
guint width, height;
@ -566,9 +575,9 @@ _gl_mem_init (GstGLMemory * mem, GstAllocator * allocator, GstMemory * parent,
{
gsize maxsize;
maxsize =
GST_VIDEO_INFO_PLANE_STRIDE (info, plane) * _get_plane_height (info,
plane);
g_return_if_fail (plane < GST_VIDEO_INFO_N_PLANES (info));
maxsize = _get_plane_data_size (info, plane);
gst_memory_init (GST_MEMORY_CAST (mem), GST_MEMORY_FLAG_NO_SHARE,
allocator, parent, maxsize, 0, 0, maxsize);
@ -587,8 +596,8 @@ _gl_mem_init (GstGLMemory * mem, GstAllocator * allocator, GstMemory * parent,
_calculate_unpack_length (mem);
GST_CAT_DEBUG (GST_CAT_GL_MEMORY, "new GL texture memory:%p format:%u "
"dimensions:%ux%u", mem, mem->tex_type, mem->tex_width,
GL_MEM_HEIGHT (mem));
"dimensions:%ux%u size:%" G_GSIZE_FORMAT, mem, mem->tex_type,
mem->tex_width, GL_MEM_HEIGHT (mem), maxsize);
}
static GstGLMemory *