Clark Li clarkli86
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| # Convert abcd into 0xab, 0xcd | |
| reduce(lambda x, y : x + y, map(lambda x : '0x' + x + ', ', map(''.join, zip(*[iter(str)] * 2)))) |
clarkli86
/ starter_video.cpp
Created
April 28, 2016 14:35
De-fisheye in OpenCV starter video example
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| /* | |
| * starter_video.cpp | |
| * | |
| * Created on: Nov 23, 2010 | |
| * Author: Ethan Rublee | |
| * | |
| * Modified on: April 17, 2013 | |
| * Author: Kevin Hughes | |
| * | |
| * A starter sample for using OpenCV VideoCapture with capture devices, video files or image sequences |
clarkli86
/ ldd_awk.sh
Created
March 16, 2016 02:10
Copy all shared libraries for a binary to directory
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| ldd file | grep "=> /" | awk '{print $3}' | xargs -I '{}' cp -v '{}' /destination |
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| rename 's/(.*\.wav)2016.*/$1/g' *.wav |
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| track2track --sample-rate 16000 --channels 1 --bits-per-sample 16 down_0.aac |
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| a = np.ndarray((4, 1)) | |
| b = np.ndarray((4, 2)) | |
| c = [np.array(list(itertools.chain.from_iterable(it))) for it in zip(a, b)] |
clarkli86
/ configure_googletest
Created
January 28, 2016 14:23
Configure googletest for baremetal (No OS) targets
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| autoreconf -fvi | |
| ./configure --disable-shared --without-pthreads --disable-libtool-lock --prefix=/home/clark/googletest --exec-prefix=/home/clark/googletest --host=arm-none-eabi LDFLAGS="-mcpu=cortex-m4 -mthumb -mfloat-abi=soft -mthumb-interwork --specs=nosys.specs " CFLAGS="-mcpu=cortex-m4 -mthumb -mfloat-abi=soft -mthumb-interwork -Iinc -DGTEST_HAS_POSIX_RE=0 -DGTEST_HAS_PTHREAD=0 -DGTEST_HAS_DEATH_TEST=0 -DGTEST_HAS_STREAM_REDIRECTION=0 -DGTEST_OS_NONE -std=c99 -Os" CXXFLAGS="-mcpu=cortex-m4 -mthumb -mfloat-abi=soft -mthumb-interwork -Iinc -DGTEST_HAS_POSIX_RE=0 -DGTEST_HAS_PTHREAD=0 -DGTEST_HAS_DEATH_TEST=0 -DGTEST_HAS_STREAM_REDIRECTION=0 -DGTEST_OS_NONE -std=gnu++11 -Os -D_POSIX_PATH_MAX=255" | |
| make & make install-libLTLIBRARIES |
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| template<typename... Args> | |
| struct TypeList; | |
| /// partial specialisation | |
| template<typename FirstType, typename... Args> | |
| struct TypeList<FirstType, Args...> : private TypeList<Args...> { | |
| using type = FirstType; | |
| template<typename ClientType> | |
| struct InList { |
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| . to repeat last command | |
| gv to reselect the visual area | |
| >> to indent current line | |
| > to indent selected text | |
| >% to indent the block | |
| >} to indent from the cursor to the next blank line | |
| <aB to un-indent the current C-like {...} "block" structure | |
| >i{ increase indent for inner block | |
| >a{ increase the whole block |
clarkli86
/ change_git_author_email_in_previous_commits
Created
August 26, 2015 14:49
One liner to change email in git commits