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gltextureupload: use an array for texture type

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Instead of using a single value for the texture type, use an array with 4
elements, just as the GstVideoGLTextureUploadMeta, avoiding a buffer
overflow.

https://bugzilla.gnome.org/show_bug.cgi?id=764231
This commit is contained in:
Víctor Manuel Jáquez Leal 2016-03-28 13:13:56 +02:00
parent 959d14ce8a
commit ddddb0415b
1 changed files with 7 additions and 5 deletions
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12
gst/vaapi/gstvaapivideometa_texture.c
View file

@ -40,7 +40,7 @@
struct _GstVaapiVideoMetaTexture
{
GstVaapiTexture *texture;
GstVideoGLTextureType texture_type;
GstVideoGLTextureType texture_type[4];
guint gl_format;
guint width;
guint height;
@ -73,15 +73,17 @@ static gboolean
meta_texture_ensure_format (GstVaapiVideoMetaTexture * meta,
GstVideoFormat format)
{
memset (meta->texture_type, 0, sizeof (meta->texture_type));
switch (format) {
case GST_VIDEO_FORMAT_RGBA:
meta->gl_format = GL_RGBA;
meta->texture_type = GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
meta->texture_type[0] = GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
break;
case GST_VIDEO_FORMAT_BGRA:
meta->gl_format = GL_BGRA_EXT;
/* FIXME: add GST_VIDEO_GL_TEXTURE_TYPE_BGRA extension */
meta->texture_type = GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
meta->texture_type[0] = GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
break;
default:
goto error_unsupported_format;
@ -155,7 +157,7 @@ meta_texture_copy (GstVaapiVideoMetaTexture * meta)
if (!copy)
return NULL;
copy->texture_type = meta->texture_type;
memcpy (copy->texture_type, meta->texture_type, sizeof (meta->texture_type));
copy->gl_format = meta->gl_format;
copy->width = meta->width;
copy->height = meta->height;
@ -220,7 +222,7 @@ gst_buffer_add_texture_upload_meta (GstBuffer * buffer)
meta = gst_buffer_add_video_gl_texture_upload_meta (buffer,
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL,
1, &meta_texture->texture_type, gst_vaapi_texture_upload,
1, meta_texture->texture_type, gst_vaapi_texture_upload,
meta_texture, (GBoxedCopyFunc) meta_texture_copy,
(GBoxedFreeFunc) meta_texture_free);
if (!meta)