From 15b4c58e8047dad468be2804328076b83cdccbb7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Thu, 11 Nov 2021 11:00:50 +0100
Subject: [PATCH] gst: Don't ask for DMA buffers

Gstreamer simply mmap()s the DMA buffers. This can be very very slow on
some hardware, so don't ask for it. For gstreamer to support DMA
buffers, it will need to support a proper way of transferring the
buffers from the GPU to the CPU, e.g. using EGL/OpenGL.
---
 src/gst/gstpipewiresink.c | 1 -
 src/gst/gstpipewiresrc.c  | 1 -
 2 files changed, 2 deletions(-)

diff --git a/src/gst/gstpipewiresink.c b/src/gst/gstpipewiresink.c
index b971722a5..34639cdbd 100644
--- a/src/gst/gstpipewiresink.c
+++ b/src/gst/gstpipewiresink.c
@@ -254,7 +254,6 @@ pool_activated (GstPipeWirePool *pool, GstPipeWireSink *sink)
 	      max_buffers ? max_buffers : INT32_MAX),
       SPA_PARAM_BUFFERS_align,   SPA_POD_Int(16),
       SPA_PARAM_BUFFERS_dataType, SPA_POD_CHOICE_FLAGS_Int(
-						(1<<SPA_DATA_DmaBuf) |
 						(1<<SPA_DATA_MemFd) |
 						(1<<SPA_DATA_MemPtr)),
       0);
diff --git a/src/gst/gstpipewiresrc.c b/src/gst/gstpipewiresrc.c
index ece57ab64..4c2aa568e 100644
--- a/src/gst/gstpipewiresrc.c
+++ b/src/gst/gstpipewiresrc.c
@@ -839,7 +839,6 @@ on_param_changed (void *data, uint32_t id,
         SPA_PARAM_BUFFERS_stride,  SPA_POD_CHOICE_RANGE_Int(0, 0, INT32_MAX),
         SPA_PARAM_BUFFERS_align,   SPA_POD_Int(16),
         SPA_PARAM_BUFFERS_dataType, SPA_POD_CHOICE_FLAGS_Int(
-						(1<<SPA_DATA_DmaBuf) |
 						(1<<SPA_DATA_MemFd) |
 						(1<<SPA_DATA_MemPtr)));