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authorBenoît Thébaudeau <benoit.thebaudeau@advansee.com>2012-07-13 20:14:05 (GMT)
committer Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2012-07-13 20:40:14 (GMT)
commit830c5868ed96a06007050f6b134e2a9954e88b10 (patch)
tree059e7620af9fa674b778659e5d51ed2e0ef96d94
parente388ac59039a9f5892b1afc7333a827d18ad0f68 (diff)
downloadbuildroot-830c5868ed96a06007050f6b134e2a9954e88b10.tar.gz
buildroot-830c5868ed96a06007050f6b134e2a9954e88b10.tar.bz2
libmad: Add optimization config options
Configuring libmad with --enable-speed compromises accuracy and can cause audio clipping in some cases (heard on ARM platform with some loud MP3s), so give users the choice of MAD optimizations. The default config corresponds to the default behavior of libmad's configure. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
-rw-r--r--package/libmad/Config.in41
-rw-r--r--package/libmad/libmad.mk6
2 files changed, 46 insertions, 1 deletions
diff --git a/package/libmad/Config.in b/package/libmad/Config.in
index 4d4f930..d0edc49 100644
--- a/package/libmad/Config.in
+++ b/package/libmad/Config.in
@@ -6,3 +6,44 @@ config BR2_PACKAGE_LIBMAD
without a floating-point unit.
http://www.underbit.com/products/mad/
+
+if BR2_PACKAGE_LIBMAD
+
+choice
+ prompt "Speed vs. accuracy"
+ default BR2_PACKAGE_LIBMAD_OPTIMIZATION_DEFAULT
+
+config BR2_PACKAGE_LIBMAD_OPTIMIZATION_DEFAULT
+ bool "Default"
+ help
+ Keep optimizations balanced between speed and accuracy.
+
+config BR2_PACKAGE_LIBMAD_OPTIMIZATION_SPEED
+ bool "Optimize for speed over accuracy"
+ help
+ Compromise accuracy for speed.
+
+config BR2_PACKAGE_LIBMAD_OPTIMIZATION_ACCURACY
+ bool "Optimize for accuracy over speed"
+ help
+ Compromise speed for accuracy.
+
+endchoice
+
+config BR2_PACKAGE_LIBMAD_SSO
+ bool "Subband synthesis optimization"
+ help
+ Use the subband synthesis optimization, with reduced accuracy.
+
+config BR2_PACKAGE_LIBMAD_ASO
+ bool "Architecture-specific optimizations"
+ default y
+ help
+ Use certain architecture-specific optimizations.
+
+config BR2_PACKAGE_LIBMAD_STRICT_ISO
+ bool "Strict ISO/IEC interpretations"
+ help
+ Use strict ISO/IEC interpretations.
+
+endif
diff --git a/package/libmad/libmad.mk b/package/libmad/libmad.mk
index 6e53cf2..3c92d52 100644
--- a/package/libmad/libmad.mk
+++ b/package/libmad/libmad.mk
@@ -30,6 +30,10 @@ LIBMAD_POST_INSTALL_TARGET_HOOKS += LIBMAD_INSTALL_TARGET_PC
LIBMAD_CONF_OPT = \
--disable-debugging \
- --enable-speed
+ $(if $(BR2_PACKAGE_LIBMAD_OPTIMIZATION_SPEED),--enable-speed) \
+ $(if $(BR2_PACKAGE_LIBMAD_OPTIMIZATION_ACCURACY),--enable-accuracy) \
+ --$(if $(BR2_PACKAGE_LIBMAD_SSO),enable,disable)-sso \
+ --$(if $(BR2_PACKAGE_LIBMAD_ASO),enable,disable)-aso \
+ --$(if $(BR2_PACKAGE_LIBMAD_STRICT_ISO),enable,disable)-strict-iso
$(eval $(call AUTOTARGETS))