I was not able to find quickly the minimal set of configure flags to
compile only the needed things for the demo.
$(MAKERULES_DIR)/ffmpeg/libswscale:
ln -sf ../../src/libswscale $@
$(MAKERULES_DIR)/ffmpeg/config.mak: $(MAKERULES_DIR)/../build/config.target # this file
- cd $(MAKERULES_DIR)/ffmpeg && ./configure --disable-encoders --disable-decoders --disable-hwaccels --disable-muxers --disable-demuxers --disable-parsers --disable-bsfs --disable-protocols --disable-devices
+ cd $(MAKERULES_DIR)/ffmpeg && ./configure
$(MAKERULES_DIR)/ffmpeg/version.h:
cd $(MAKERULES_DIR)/ffmpeg && ./version.sh $$PWD $@
endif