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package/ffmpeg: add optional dependency to libxcb

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ffmpeg 3.3 added optional support for libxcb:
https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/Changelog#l282

This patch ensures a reproducible build of libavdevice.so:

$ readelf -a output/target/usr/lib/libavdevice.so | grep NEEDED
 0x0000000000000001 (NEEDED)             Shared library: [libavfilter.so.7]
 0x0000000000000001 (NEEDED)             Shared library: [libavformat.so.58]
 0x0000000000000001 (NEEDED)             Shared library: [libavcodec.so.58]
 0x0000000000000001 (NEEDED)             Shared library: [libavutil.so.56]
 0x0000000000000001 (NEEDED)             Shared library: [libxcb.so.1]
 0x0000000000000001 (NEEDED)             Shared library: [libxcb-shm.so.0]
 0x0000000000000001 (NEEDED)             Shared library: [libxcb-shape.so.0]
 0x0000000000000001 (NEEDED)             Shared library: [libxcb-xfixes.so.0]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.0]

compared to

$ readelf -a output/target/usr/lib/libavdevice.so | grep NEEDED
 0x0000000000000001 (NEEDED)             Shared library: [libavfilter.so.7]
 0x0000000000000001 (NEEDED)             Shared library: [libavformat.so.58]
 0x0000000000000001 (NEEDED)             Shared library: [libavcodec.so.58]
 0x0000000000000001 (NEEDED)             Shared library: [libavutil.so.56]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.0]

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Bernd Kuhls 2020-04-05 16:52:07 +02:00 committed by Thomas Petazzoni
parent 2a36dad008
commit 10954dfe68
2 changed files with 18 additions and 0 deletions
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7
package/ffmpeg/Config.in
View File

@ -67,6 +67,13 @@ config BR2_PACKAGE_FFMPEG_FFPROBE
FFprobe is a utility to determine the audio and video
characteristics of a container file.
config BR2_PACKAGE_FFMPEG_XCBGRAB
bool "Build X11 screen grabbing"
depends on BR2_PACKAGE_XORG7
select BR2_PACKAGE_LIBXCB
help
X11 screen grabbing using libxcb.
config BR2_PACKAGE_FFMPEG_AVRESAMPLE
bool "Build libavresample"
help

11
package/ffmpeg/ffmpeg.mk
View File

@ -96,6 +96,17 @@ else
FFMPEG_CONF_OPTS += --disable-ffprobe
endif
ifeq ($(BR2_PACKAGE_FFMPEG_XCBGRAB),y)
FFMPEG_CONF_OPTS += \
--enable-libxcb \
--enable-libxcb-shape \
--enable-libxcb-shm \
--enable-libxcb-xfixes
FFMPEG_DEPENDENCIES += libxcb
else
FFMPEG_CONF_OPTS += --disable-libxcb
endif
ifeq ($(BR2_PACKAGE_FFMPEG_POSTPROC),y)
FFMPEG_CONF_OPTS += --enable-postproc
else