diff --git a/sys/ximage/ximagepool.c b/sys/ximage/ximagepool.c index e0f41d43b7..85f7d2d792 100644 --- a/sys/ximage/ximagepool.c +++ b/sys/ximage/ximagepool.c @@ -100,7 +100,7 @@ gst_buffer_add_ximage_meta (GstBuffer * buffer, GstXImageBufferPool * xpool) gboolean success = FALSE; GstXContext *xcontext; GstXImageMeta *meta; - gint width, height; + gint width, height, align = 15, offset; GstXImageBufferPoolPrivate *priv; priv = xpool->priv; @@ -165,7 +165,8 @@ gst_buffer_add_ximage_meta (GstBuffer * buffer, GstXImageBufferPool * xpool) meta->size, width, meta->ximage->bytes_per_line); /* get shared memory */ - meta->SHMInfo.shmid = shmget (IPC_PRIVATE, meta->size, IPC_CREAT | 0777); + meta->SHMInfo.shmid = + shmget (IPC_PRIVATE, meta->size + align, IPC_CREAT | 0777); if (meta->SHMInfo.shmid == -1) goto shmget_failed; @@ -218,7 +219,7 @@ gst_buffer_add_ximage_meta (GstBuffer * buffer, GstXImageBufferPool * xpool) allocsize = GST_ROUND_UP_4 (meta->ximage->bytes_per_line) * meta->ximage->height; - meta->ximage->data = g_malloc (allocsize); + meta->ximage->data = g_malloc (allocsize + align); GST_LOG_OBJECT (ximagesink, "non-XShm image size is %" G_GSIZE_FORMAT " (alloced: %u), width %d, " "stride %d", meta->size, allocsize, width, @@ -227,13 +228,19 @@ gst_buffer_add_ximage_meta (GstBuffer * buffer, GstXImageBufferPool * xpool) XSync (xcontext->disp, FALSE); } + if ((offset = ((guintptr) meta->ximage->data & align))) + offset = (align + 1) - offset; + + GST_DEBUG_OBJECT (ximagesink, "memory %p, align %d, offset %d", + meta->ximage->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->ximage->data, - meta->size, 0, meta->size, NULL, NULL)); + meta->size + align, offset, meta->size, NULL, NULL)); g_mutex_unlock (ximagesink->x_lock); diff --git a/sys/xvimage/xvimagepool.c b/sys/xvimage/xvimagepool.c index 5be8d6be19..435fc22600 100644 --- a/sys/xvimage/xvimagepool.c +++ b/sys/xvimage/xvimagepool.c @@ -103,7 +103,7 @@ gst_buffer_add_xvimage_meta (GstBuffer * buffer, GstXvImageBufferPool * xvpool) gboolean success = FALSE; GstXContext *xcontext; GstXvImageMeta *meta; - gint width, height, im_format; + gint width, height, im_format, align = 15, offset; GstXvImageBufferPoolPrivate *priv; priv = xvpool->priv; @@ -220,7 +220,8 @@ gst_buffer_add_xvimage_meta (GstBuffer * buffer, GstXvImageBufferPool * xvpool) } /* get shared memory */ - meta->SHMInfo.shmid = shmget (IPC_PRIVATE, meta->size, IPC_CREAT | 0777); + meta->SHMInfo.shmid = + shmget (IPC_PRIVATE, meta->size + align, IPC_CREAT | 0777); if (meta->SHMInfo.shmid == -1) goto shmget_failed; @@ -256,18 +257,24 @@ gst_buffer_add_xvimage_meta (GstBuffer * buffer, GstXvImageBufferPool * xvpool) /* 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); + meta->xvimage->data = g_malloc (meta->size + align); XSync (xcontext->disp, FALSE); } + if ((offset = ((guintptr) meta->xvimage->data & align))) + offset = (align + 1) - offset; + + GST_DEBUG_OBJECT (xvimagesink, "memory %p, align %d, offset %d", + meta->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, 0, meta->size, NULL, NULL)); + meta->size + align, offset, meta->size, NULL, NULL)); g_mutex_unlock (xvimagesink->x_lock);