hwcontext_vulkan: dlopen libvulkan

[ffmpeg] / doc / multithreading.txt

diff --git a/doc/multithreading.txt b/doc/multithreading.txt
index 4f645dc14792e6b9d9ec6cf993ac51b07acf258f..470194ff857da808b267ad61a25ebbdbfa11bee7 100644 (file)
--- a/doc/multithreading.txt
+++ b/doc/multithreading.txt
@@ -20,8 +20,7 @@ Slice threading -
 
 Frame threading -
 * Restrictions with slice threading also apply.
-* For best performance, the client should set thread_safe_callbacks if it
-  provides a thread-safe get_buffer() callback.
+* Custom get_buffer2() and get_format() callbacks must be thread-safe.
 * There is one frame of delay added for every thread beyond the first one.
   Clients must be able to handle this; the pkt_dts and pkt_pts fields in
   AVFrame will work as usual.