| File gifrec added (mode: 100755) (index 0000000..b49e6b8) |
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#!/bin/bash |
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# Copyright 2020 xaizek <xaizek@posteo.net> |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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# Made after https://unix.stackexchange.com/a/113696/56269 |
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# Uses (depends on): |
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# - ffcast (https://github.com/lolilolicon/ffcast) |
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# - convert from ImageMagick package (http://imagemagick.org/) |
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# - ffmpeg |
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# - tempfile |
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# To use invoke as `gifrec recording` and use `recording.gif` created in current |
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# directory afterwards. |
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# TODO: enable optional use of https://github.com/lolilolicon/xrectsel to |
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# select area with a mouse |
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# TODO: maybe check whether ffcast is available before doing anything else |
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# TODO: maybe get rid of convert: |
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# https://www.linux.org.ru/forum/general/15373028?cid=15373044 |
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if [ $# -ne 1 ]; then |
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echo "Usage: $(basename "$0") name" |
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exit 1 |
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fi |
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name="$1" |
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frame_rate=20 |
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delay=5 |
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out_gif="$name.gif" |
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tmp_avi="$(tempfile --prefix=gif- --suffix=.avi)" |
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if [ $? -ne 0 ]; then |
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echo "Failed to generate name for temporary file" |
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exit 2 |
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fi |
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function remove_tmp_file() |
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{ |
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rm "$tmp_avi" |
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} |
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trap remove_tmp_file EXIT |
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# TODO: looks like could use -w option of ffcast instead of this code, but |
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# adding countdown might be harder |
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echo 'Pick a window by clicking on it with a mouse...' |
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window_id="$(xwininfo | sed -n '/Window id/s/.*\(0x[a-f0-9]\+\).*/\1/p')" |
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for i in {3..1}; do |
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echo "$i" |
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sleep 1 |
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done |
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ffcast -# "$window_id" \ |
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% ffmpeg \ |
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-f x11grab \ |
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-show_region 1 \ |
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-framerate "$frame_rate" \ |
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-video_size %s \ |
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-i %D+%c \ |
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-codec:v huffyuv \ |
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-vf crop='iw-mod(iw\,2):ih-mod(ih\,2)' \ |
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-f avi \ |
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-y \ |
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"$tmp_avi" \ |
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&& convert -layers Optimize \ |
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-set delay "$delay" \ |
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"$tmp_avi" \ |
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"$out_gif" |