Mesa (master): frontends/va: Return an error if non-interlaced buffer is not supported
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Wed Jan 13 16:41:57 UTC 2021
Module: Mesa
Branch: master
Commit: 4b208cc503ddf0c4ed81e24cf4bf68403072c7d1
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4b208cc503ddf0c4ed81e24cf4bf68403072c7d1
Author: Thong Thai <thong.thai at amd.com>
Date: Mon Jan 4 15:53:02 2021 -0500
frontends/va: Return an error if non-interlaced buffer is not supported
Add a check to vaDeriveImage to see if a non-interlaced buffer was
created successfully. Otherwise, return an error, since we won't be able
to derive an image from the interlaced buffer.
Prevents a null pointer dereference from occuring on some nVidia cards,
reported by Alexander Kapshuk.
v2: Check for PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE support (Ilia)
Fixes: fcb558321e6 ("frontends/va: Derive image from interlaced buffers")
Signed-off-by: Thong Thai <thong.thai at amd.com>
Tested-by: Alexander Kapshuk <alexander.kapshuk at gmail.com>
Reviewed-by: Leo Liu <leo.liu at amd.com>
Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8320>
---
src/gallium/frontends/va/image.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/src/gallium/frontends/va/image.c b/src/gallium/frontends/va/image.c
index 667b6293ec5..7a0d391e470 100644
--- a/src/gallium/frontends/va/image.c
+++ b/src/gallium/frontends/va/image.c
@@ -212,8 +212,8 @@ vlVaDeriveImage(VADriverContextP ctx, VASurfaceID surface, VAImage *image)
/* This function is used by some programs to test for hardware decoding, but on
* AMD devices, the buffers default to interlaced, which causes this function to fail.
* Some programs expect this function to fail, while others, assume this means
- * hardware acceleration is not available and give up without trying the fall-back
- * vaCreateImage + vaPutImage
+ * hardware acceleration is not available and give up without trying the fall-back
+ * vaCreateImage + vaPutImage
*/
const char *proc = util_get_process_name();
const char *derive_interlaced_allowlist[] = {
@@ -245,6 +245,10 @@ vlVaDeriveImage(VADriverContextP ctx, VASurfaceID surface, VAImage *image)
if (i >= ARRAY_SIZE(derive_interlaced_allowlist))
return VA_STATUS_ERROR_OPERATION_FAILED;
+
+ if (!screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN, PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
+ PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE))
+ return VA_STATUS_ERROR_OPERATION_FAILED;
}
surfaces = surf->buffer->get_surfaces(surf->buffer);
@@ -312,6 +316,13 @@ vlVaDeriveImage(VADriverContextP ctx, VASurfaceID surface, VAImage *image)
new_template.interlaced = false;
new_buffer = drv->pipe->create_video_buffer(drv->pipe, &new_template);
+ /* not all devices support non-interlaced buffers */
+ if (!new_buffer) {
+ FREE(img);
+ mtx_unlock(&drv->mutex);
+ return VA_STATUS_ERROR_OPERATION_FAILED;
+ }
+
/* convert the interlaced to the progressive */
src_rect.x0 = dst_rect.x0 = 0;
src_rect.x1 = dst_rect.x1 = surf->templat.width;
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