merge read and and in add_paeth_prediction

[ffmpeg] / doc / build_system.txt

diff --git a/doc/build_system.txt b/doc/build_system.txt
index 1011f57f66c4d1d6aaef41b2ff9f14024c9e3a04..36c141e9e43659fb9a7f48e3f493ba6825d57fc7 100644 (file)
--- a/doc/build_system.txt
+++ b/doc/build_system.txt
@@ -1,4 +1,4 @@
-Libav currently uses a custom build system, this text attempts to document
+FFmpeg currently uses a custom build system, this text attempts to document
 some of its obscure features and options.
 
 Makefile variables:
@@ -9,13 +9,19 @@ V
 
 DESTDIR
     Destination directory for the install targets, useful to prepare packages
-    or install Libav in cross-environments.
+    or install FFmpeg in cross-environments.
 
 Makefile targets:
 
 all
     Default target, builds all the libraries and the executables.
 
+fate
+    Run the fate test suite, note you must have installed it
+
+fate-list
+    Will list all fate/regression test targets
+
 install
     Install headers, libraries and programs.
 
@@ -28,3 +34,17 @@ libavcodec/api-example
 libswscale/swscale-test
     Build the swscale self-test (useful also as example).
 
+
+Useful standard make commands:
+make -t <target>
+    Touch all files that otherwise would be build, this is useful to reduce
+    unneeded rebuilding when changing headers, but note you must force rebuilds
+    of files that actually need it by hand then.
+
+make -j<num>
+    rebuild with multiple jobs at the same time. Faster on multi processor systems
+
+make -k
+    continue build in case of errors, this is useful for the regression tests
+    sometimes but note it will still not run all reg tests.
+