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kmssink: override stride if defined in driver

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Some kms drivers demands specific pitches over the ones calculated by
GstVideoInfo. For example, intel driver demands strides round up 64.

This patch queries the driver for the prefered pitch and overwrites it
in the pool's GstVideoInfo structure.

https://bugzilla.gnome.org/show_bug.cgi?id=768446
This commit is contained in:
Víctor Manuel Jáquez Leal 2016-08-05 18:17:32 +02:00
parent 533ee7be95
commit c117165f7b
1 changed files with 7 additions and 1 deletions
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8
sys/kms/gstkmsallocator.c
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@ -303,7 +303,7 @@ gst_kms_allocator_add_fb (GstKMSAllocator * alloc, GstKMSMemory * kmsmem,
{
int i, ret;
gint num_planes = GST_VIDEO_INFO_N_PLANES (vinfo);
guint32 w, h, fmt, bo_handles[4] = { 0, };
guint32 w, h, fmt, pitch = 0, bo_handles[4] = { 0, };
guint32 offsets[4] = { 0, };
guint32 pitches[4] = { 0, };
@ -318,6 +318,10 @@ gst_kms_allocator_add_fb (GstKMSAllocator * alloc, GstKMSMemory * kmsmem,
kms_bo_get_prop (kmsmem->bo, KMS_HANDLE, &bo_handles[0]);
for (i = 1; i < num_planes; i++)
bo_handles[i] = bo_handles[0];
/* Get the bo pitch calculated by the kms driver.
* If it's defined, it will overwrite the video info's stride */
kms_bo_get_prop (kmsmem->bo, KMS_PITCH, &pitch);
} else {
for (i = 0; i < num_planes; i++)
bo_handles[i] = kmsmem->gem_handle[i];
@ -328,6 +332,8 @@ gst_kms_allocator_add_fb (GstKMSAllocator * alloc, GstKMSMemory * kmsmem,
for (i = 0; i < num_planes; i++) {
offsets[i] = mem_offsets[i];
if (pitch)
GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i) = pitch;
pitches[i] = GST_VIDEO_INFO_PLANE_STRIDE (vinfo, i);
GST_DEBUG_OBJECT (alloc, "Create FB plane %i with stride %u and offset %u",
i, pitches[i], offsets[i]);