glubsy · February 27, 2021 18:36
diff --git a/stream_parts_joiner.sh b/stream_parts_joiner.sh
 #!/bin/zsh
 # Join parts generated by the script: https://gist.github.com/cheadrian/b661fb68a6a87ea64069e641cef68c3e#gistcomment-3495351

 mkdir -p vid_fix
 base_dir=$(pwd)
 vid_dir="${base_dir}/stream_download_test/vid/"
 aud_dir="${base_dir}/stream_download_test/aud/"
 # number of files to skip from the start and end
 skip_start=58
 skip_end=0

 # List audio and video source files and format it for ffmpeg
 if [[ ! -f ${vid_dir}vid_list.txt ]]; then
 	# ignore the file being created, otherwise it will be included!
 	ls -v ${vid_dir} | grep -v ".txt" > ${vid_dir}vid_list.txt;
 	sed -i "s/.*/file '&'/" ${vid_dir}vid_list.txt;

 	if [[ "${skip_start}" -ne 0 ]]; then
 		# Remove the Nth lines from the start
 		echo "Discarding ${skip_start} video files from the first line...";
 	 	sed -i "1,${skip_start}d" ${vid_dir}vid_list.txt;
 	fi

 	if [ "${skip_end}" -ne 0 ]; then
 	# Remove the Nth lines at the end
 	echo "Discarding ${skip_end} video files at the end...";
 	sed -i "$(($(wc -l < ${vid_dir}vid_list.txt)-${skip_end})),\$d" ${vid_dir}vid_list.txt;
 	fi
 fi

 if [[ ! -f ${aud_dir}aud_list.txt ]]; then
 	# ignore the file being created, otherwise it will be included!
 	ls -v ${aud_dir} | grep -v ".txt" > ${aud_dir}aud_list.txt;
 	sed -i "s/.*/file '&'/" ${aud_dir}aud_list.txt;

 	if [[ "${skip_start}" -ne 0 ]]; then
 		# Remove the Nth lines from the start
 		echo "Discarding ${skip_start} audio files from the first line...";
 	 	sed -i "1,${skip_start}d" ${aud_dir}aud_list.txt;
 	fi

 	if [ "${skip_end}" -ne 0 ]; then
 	# Remove the Nth lines at the end
 	echo "Discarding ${skip_end} audio files at the end...";
 	sed -i "$(($(wc -l < ${vid_dir}vid_list.txt)-${skip_end})),\$d" ${aud_dir}aud_list.txt;
 	fi
 fi

 # Convert video pieces to better format (in case we need) 
 # for f in ${vid_dir}*.mp4; do ffmpeg -i "${f}" -an -c:v libx264 -crf 18 ${f#${vid_dir}}; done;

 # Concatenate into one video file
 video_output="output.ts"
 if [ ! -e ${vid_dir}${video_output} ]; then
 	cd ${vid_dir};
 	# ffmpeg -f concat -i vid_list.txt -c:v libx264 -crf 16 -an -f mpegts output.mpg;
 	ffmpeg -hide_banner -auto_convert 1 -f concat -i vid_list.txt -c copy -bsf h264_mp4toannexb -an -f mpegts ${video_output};
 	cd ${base_dir};
 else
 	echo "${video_output} already exists. Skipping creation.";
 fi

 # Concatenate and encode into mp3 to remove timestamps embedded in the original files, doesn't seem to work with m4a format
 audio_output="output.mp3"
 if [ ! -e ${aud_dir}${audio_output} ]; then
 	cd ${aud_dir};
 	# ffmpeg -hide_banner -f concat -i aud_list.txt -c copy ${audio_output};
 	ffmpeg -hide_banner -f concat -i aud_list.txt -acodec libmp3lame -b:a 128k output.mp3;
 	cd ${base_dir};
 else
 	echo "${audio_output} already exists. Skipping creation.";
 fi

 # ffmpeg -i ${vid_dir}output.mp4 -i ${aud_dir}output.m4a -filter_complex \
 # "[0:v][1:a] concat=n=2:v=1:a=1 [outv] [outa]" -map "[outv]" -map "[outa]" out.mp4

 # Mux for final file. Specifying 60 fps seems to be required here to ignore original timestamps in video stream
 final_output="stream_output_final.mp4"
 echo "Muxing final file ${final_output}"
 ffmpeg -hide_banner -i "${vid_dir}output.ts" -r:0 60 -vn -i "${aud_dir}${audio_output}" -c:v libx264 -crf 18 -c:a copy ${final_output};


 # =============================
 # Archived notes:
 # =============================

 ## Easier way could be with a bash for loop
 # for f in ./*.wav; do echo "file '$f'" >> mylist.txt; done
 ## or
 # printf "file '%s'\n" ./*.wav > mylist.txt

 ## Store files in an array
 # files=(*.c)
 # for f in “${files[@]}”; do cmd “$f”; done
 ## Or just use glob
 # for f in *.c; do cmd “$f”; done
diff --git a/youtube_stream_parts_download.py b/youtube_stream_parts_download.py
 #!/usr/bin/env python3
 # With the help of this script you can download parts from the Youtube Video
 # that is live streamed, from the start of the stream
 # https://gist.github.com/glubsy/6e9b3061e074f528ea7153647f9fe615

 import urllib.request
 import urllib.error
 from os import makedirs, sep, listdir

 # Note: you need to be logged in to get the URL, we do not use cookies directly here.
 # E.G: "https://r4---sn-gqn-p5ns.googlevideo.com/videoplayback?expire=1603041842& ..... 2.20201016.02.00&sq=..."
 # The sound link should contain: &mime=audio in it.
 # Here's an example from NASA LIVE:
 # VIDEO: https://r5---sn-gqn-p5ns.googlevideo.com/videoplayback?expire=1603165657&ei=eQmOX8TeFtS07gO1xLWwDA&ip=x.x.x.x&id=DDU-rZs-Ic4.1&itag=137&aitags=133%2C134%2C135%2C136%2C137%2C160&source=yt_live_broadcast&requiressl=yes&mh=PU&mm=44%2C29&mn=sn-gqn-p5ns%2Csn-c0q7lnsl&ms=lva%2Crdu&mv=m&mvi=5&pl=20&initcwndbps=1350000&vprv=1&live=1&hang=1&noclen=1&mime=video%2Fmp4&gir=yes&mt=1603143920&fvip=5&keepalive=yes&fexp=23915654&c=WEB&sparams=expire%2Cei%2Cip%2Cid%2Caitags%2Csource%2Crequiressl%2Cvprv%2Clive%2Chang%2Cnoclen%2Cmime%2Cgir&sig=AOq0QJ8wRQIgQMnxy1Yk3HLTpqbOGmjZYH1CXCTNx6u6PgngAVGi4EQCIQDWyaye-u_KGyVQ0HRUsyKVaAzyXbmzDqOGVGpIyP7VtA%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgR5QVZh23NcLE2nRpo5IT-axGEfUCJrXKMmJHjXQdkCYCIFLsIFacvPpy98zaNSB0RfXswacyc-Ru3sYeEjTFym43&alr=yes&cpn=LlPCcTsE_3Xao9Xh&cver=2.20201016.02.00&sq=2504043&rn=13&rbuf=21958
 # AUDIO: https://r5---sn-gqn-p5ns.googlevideo.com/videoplayback?expire=1603165657&ei=eQmOX8TeFtS07gO1xLWwDA&ip=x.x.x.x&id=DDU-rZs-Ic4.1&itag=140&source=yt_live_broadcast&requiressl=yes&mh=PU&mm=44%2C29&mn=sn-gqn-p5ns%2Csn-c0q7lnsl&ms=lva%2Crdu&mv=m&mvi=5&pl=20&initcwndbps=1350000&vprv=1&live=1&hang=1&noclen=1&mime=audio%2Fmp4&gir=yes&mt=1603143920&fvip=5&keepalive=yes&fexp=23915654&c=WEB&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cvprv%2Clive%2Chang%2Cnoclen%2Cmime%2Cgir&sig=AOq0QJ8wRAIgWFTZLV1G33cKJoitlK7dUgNg1KuXyvC6F9F7Lc6x3gcCIHaGjehjvVAjUd6cqMnTLtBq9pPRfQWXM3bwI1qQYqpx&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgR5QVZh23NcLE2nRpo5IT-axGEfUCJrXKMmJHjXQdkCYCIFLsIFacvPpy98zaNSB0RfXswacyc-Ru3sYeEjTFym43&alr=yes&cpn=LlPCcTsE_3Xao9Xh&cver=2.20201016.02.00&sq=2504045&rn=20&rbuf=17971
 # Use MPV or VLC to play the parts. ffmpeg to re-encode / re-mux and then concatenate.

 # You can copy the entire link here, it will be split automatically below
 video_link = ""
 # video_link = "VIDEO LINK THE END -> &sq=" # Look for the substring mime=video to make sure
 video_link = f'{video_link.split(r"&sq=")[0]}&sq='

 # You can copy the entire link here, it will be split automatically below
 sound_link = ""
 # sound_link = "AUDIO LINK THE END -> &sq= " # Look for the substring mime=audio to make sure
 sound_link = f'{sound_link.split(r"&sq=")[0]}&sq='

 # On Youtube, each segment can be equivalent to 1 to several seconds of video (depending on latency settings)
 # The itag determines the quality. 140 for audio seems best, 135 for video means 480p.
 # See https://github.com/pytube/pytube/blob/master/pytube/itags.py for reference.

 # The boadcastID follows the videoID. Format is currently: "&id=videoID.broadcastID&itags="
 YT_HASH = video_link.split("&id=")[1].split('.')[0]
 print(f'Capturing video with Hash ID: {YT_HASH}')

 rootpath = f'stream_capture_{YT_HASH}'
 vidpath = f'{rootpath}{sep}vid'
 audpath = f'{rootpath}{sep}aud'

 # the sequence numbers to begin download from.
 seg = 1

 try:
    makedirs(vidpath, 0o766)
    makedirs(audpath, 0o766)
 except FileExistsError as e:
    # If we resume, get the latest chunk file we already have
    seg = max([int(f[:f.index('.')]) for f in listdir(vidpath)], default=1)
    if seg > 1:
        # Step back one file just in case the latest chunk got only partially
        # downloaded (we want to overwrite it, for good measure)
        seg -= 1
 print(f'Starting from segment: {seg}')

 padding = 10
 try:
    while True:
        video_url = f'{video_link}{seg}'
        sound_url = f'{sound_link}{seg}'

        video_output_file = vidpath + sep + f'{seg:0{padding}}.mp4'
        audio_output_file = audpath + sep + f'{seg:0{padding}}.m4a'

        urllib.request.urlretrieve(video_url, video_output_file)
        urllib.request.urlretrieve(sound_url, audio_output_file)

        print(f"Downloaded part {seg}")
        seg += 1

 except urllib.error.URLError as e:
    print(f'network error {e}')
 except (IOError) as e:
    print(f'file error: {e}')
diff --git a/youtube_stream_pre_merge.sh b/youtube_stream_pre_merge.sh
 #!/bin/bash
 # To be used after using the manual_download.py script
 # and right before mrwnwttk's merge.py script 
 # from https://github.com/mrwnwttk/youtube_stream_capture

 # CHANGE THIS!
 # Point to the script located in the submodule, relative to this script's location,
 # otherwise point to where you have installed "youtube_stream_capture"
 MERGE_SCRIPT="$(dirname $(realpath $0))/youtube_stream_capture/merge.py"

 # Make sure the capture directory is there
 # FIXME if there is more than one result, it won't work.
 CAP_DIR=$(find . -maxdepth 1 -type d -iname 'stream_capture*');
 if [[ ${CAP_DIR} == '' ]]; then 
 	echo "Error getting youtube hash from \"stream_capture_HASH_ID\" directory. Make sure it is present.";
 	exit;
 elif [[ $(find "${CAP_DIR}" -maxdepth 1 -type d -iname 'aud') == '' 
 	|| $(find "${CAP_DIR}" -maxdepth 1 -type d -iname 'vid') == '' ]]; then
 	echo "aud or vid directory not found in ${CAP_DIR}";
 	exit;
 fi

 # Get the Youtube Hash ID from the directory name if present
 YT_HASH="${CAP_DIR##./stream_capture_}";
 if [[ "${YT_HASH}" == "./stream_capture" ]]; then 
 	YT_HASH="AAAAAAAAAAA";
 	echo "Could not detect youtube hash ID in capture dirname, using default ${YT_HASH}";
 else
 	echo "Detected youtube hash ID is $YT_HASH";
 fi

 # Create directory expected by merge.py
 target_dirname="segments_${YT_HASH}";
 mkdir -p "${target_dirname}";

 # Create symlinks to our previously downloaded chunks
 cp -s $(pwd)/stream_capture_${YT_HASH}/aud/* ${target_dirname};
 cp -s $(pwd)/stream_capture_${YT_HASH}/vid/* ${target_dirname};

 # Add the hash ID after the digits of each file, as expected by merge.py
 AUDIO_REGEX='s/(\d*)\.m4a/$1_'${YT_HASH}'_audio\.ts/';
 VIDEO_REGEX='s/(\d*)\.mp4/$1_'${YT_HASH}'_video\.ts/';
 perl-rename "${AUDIO_REGEX}" ${target_dirname}/*;
 perl-rename "${VIDEO_REGEX}" ${target_dirname}/*;

 # Optionally, remove any leading padding zeros we added
 perl-rename 's/(.*\/)0*(\d*_.*)/$1$2/' ${target_dirname}/*;

 # Call the merge script with bogus youtube URL since it expects one anyway
 python "${MERGE_SCRIPT}" "https://www.youtube.com/watch?v=${YT_HASH}";

 if [[ $? -eq 0 ]]; then
 	echo "Removing temporary directory with symlinks \"${target_dirname}\"..."
 	rm -r ${target_dirname};
 fi
	#!/bin/zsh
	# Join parts generated by the script: https://gist.github.com/cheadrian/b661fb68a6a87ea64069e641cef68c3e#gistcomment-3495351

	mkdir -p vid_fix
	base_dir=$(pwd)
	vid_dir="${base_dir}/stream_download_test/vid/"
	aud_dir="${base_dir}/stream_download_test/aud/"
	# number of files to skip from the start and end
	skip_start=58
	skip_end=0

	# List audio and video source files and format it for ffmpeg
	if [[ ! -f ${vid_dir}vid_list.txt ]]; then
	# ignore the file being created, otherwise it will be included!
	ls -v ${vid_dir} \| grep -v ".txt" > ${vid_dir}vid_list.txt;
	sed -i "s/.*/file '&'/" ${vid_dir}vid_list.txt;

	if [[ "${skip_start}" -ne 0 ]]; then
	# Remove the Nth lines from the start
	echo "Discarding ${skip_start} video files from the first line...";
	sed -i "1,${skip_start}d" ${vid_dir}vid_list.txt;
	fi

	if [ "${skip_end}" -ne 0 ]; then
	# Remove the Nth lines at the end
	echo "Discarding ${skip_end} video files at the end...";
	sed -i "$(($(wc -l < ${vid_dir}vid_list.txt)-${skip_end})),\$d" ${vid_dir}vid_list.txt;
	fi
	fi

	if [[ ! -f ${aud_dir}aud_list.txt ]]; then
	# ignore the file being created, otherwise it will be included!
	ls -v ${aud_dir} \| grep -v ".txt" > ${aud_dir}aud_list.txt;
	sed -i "s/.*/file '&'/" ${aud_dir}aud_list.txt;

	if [[ "${skip_start}" -ne 0 ]]; then
	# Remove the Nth lines from the start
	echo "Discarding ${skip_start} audio files from the first line...";
	sed -i "1,${skip_start}d" ${aud_dir}aud_list.txt;
	fi

	if [ "${skip_end}" -ne 0 ]; then
	# Remove the Nth lines at the end
	echo "Discarding ${skip_end} audio files at the end...";
	sed -i "$(($(wc -l < ${vid_dir}vid_list.txt)-${skip_end})),\$d" ${aud_dir}aud_list.txt;
	fi
	fi

	# Convert video pieces to better format (in case we need)
	# for f in ${vid_dir}*.mp4; do ffmpeg -i "${f}" -an -c:v libx264 -crf 18 ${f#${vid_dir}}; done;

	# Concatenate into one video file
	video_output="output.ts"
	if [ ! -e ${vid_dir}${video_output} ]; then
	cd ${vid_dir};
	# ffmpeg -f concat -i vid_list.txt -c:v libx264 -crf 16 -an -f mpegts output.mpg;
	ffmpeg -hide_banner -auto_convert 1 -f concat -i vid_list.txt -c copy -bsf h264_mp4toannexb -an -f mpegts ${video_output};
	cd ${base_dir};
	else
	echo "${video_output} already exists. Skipping creation.";
	fi

	# Concatenate and encode into mp3 to remove timestamps embedded in the original files, doesn't seem to work with m4a format
	audio_output="output.mp3"
	if [ ! -e ${aud_dir}${audio_output} ]; then
	cd ${aud_dir};
	# ffmpeg -hide_banner -f concat -i aud_list.txt -c copy ${audio_output};
	ffmpeg -hide_banner -f concat -i aud_list.txt -acodec libmp3lame -b:a 128k output.mp3;
	cd ${base_dir};
	else
	echo "${audio_output} already exists. Skipping creation.";
	fi

	# ffmpeg -i ${vid_dir}output.mp4 -i ${aud_dir}output.m4a -filter_complex \
	# "[0:v][1:a] concat=n=2:v=1:a=1 [outv] [outa]" -map "[outv]" -map "[outa]" out.mp4

	# Mux for final file. Specifying 60 fps seems to be required here to ignore original timestamps in video stream
	final_output="stream_output_final.mp4"
	echo "Muxing final file ${final_output}"
	ffmpeg -hide_banner -i "${vid_dir}output.ts" -r:0 60 -vn -i "${aud_dir}${audio_output}" -c:v libx264 -crf 18 -c:a copy ${final_output};


	# =============================
	# Archived notes:
	# =============================

	## Easier way could be with a bash for loop
	# for f in ./*.wav; do echo "file '$f'" >> mylist.txt; done
	## or
	# printf "file '%s'\n" ./*.wav > mylist.txt

	## Store files in an array
	# files=(*.c)
	# for f in “${files[@]}”; do cmd “$f”; done
	## Or just use glob
	# for f in *.c; do cmd “$f”; done
	#!/usr/bin/env python3
	# With the help of this script you can download parts from the Youtube Video
	# that is live streamed, from the start of the stream
	# https://gist.github.com/glubsy/6e9b3061e074f528ea7153647f9fe615

	import urllib.request
	import urllib.error
	from os import makedirs, sep, listdir

	# Note: you need to be logged in to get the URL, we do not use cookies directly here.
	# E.G: "https://r4---sn-gqn-p5ns.googlevideo.com/videoplayback?expire=1603041842& ..... 2.20201016.02.00&sq=..."
	# The sound link should contain: &mime=audio in it.
	# Here's an example from NASA LIVE:
	# VIDEO: https://r5---sn-gqn-p5ns.googlevideo.com/videoplayback?expire=1603165657&ei=eQmOX8TeFtS07gO1xLWwDA&ip=x.x.x.x&id=DDU-rZs-Ic4.1&itag=137&aitags=133%2C134%2C135%2C136%2C137%2C160&source=yt_live_broadcast&requiressl=yes&mh=PU&mm=44%2C29&mn=sn-gqn-p5ns%2Csn-c0q7lnsl&ms=lva%2Crdu&mv=m&mvi=5&pl=20&initcwndbps=1350000&vprv=1&live=1&hang=1&noclen=1&mime=video%2Fmp4&gir=yes&mt=1603143920&fvip=5&keepalive=yes&fexp=23915654&c=WEB&sparams=expire%2Cei%2Cip%2Cid%2Caitags%2Csource%2Crequiressl%2Cvprv%2Clive%2Chang%2Cnoclen%2Cmime%2Cgir&sig=AOq0QJ8wRQIgQMnxy1Yk3HLTpqbOGmjZYH1CXCTNx6u6PgngAVGi4EQCIQDWyaye-u_KGyVQ0HRUsyKVaAzyXbmzDqOGVGpIyP7VtA%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgR5QVZh23NcLE2nRpo5IT-axGEfUCJrXKMmJHjXQdkCYCIFLsIFacvPpy98zaNSB0RfXswacyc-Ru3sYeEjTFym43&alr=yes&cpn=LlPCcTsE_3Xao9Xh&cver=2.20201016.02.00&sq=2504043&rn=13&rbuf=21958
	# AUDIO: https://r5---sn-gqn-p5ns.googlevideo.com/videoplayback?expire=1603165657&ei=eQmOX8TeFtS07gO1xLWwDA&ip=x.x.x.x&id=DDU-rZs-Ic4.1&itag=140&source=yt_live_broadcast&requiressl=yes&mh=PU&mm=44%2C29&mn=sn-gqn-p5ns%2Csn-c0q7lnsl&ms=lva%2Crdu&mv=m&mvi=5&pl=20&initcwndbps=1350000&vprv=1&live=1&hang=1&noclen=1&mime=audio%2Fmp4&gir=yes&mt=1603143920&fvip=5&keepalive=yes&fexp=23915654&c=WEB&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cvprv%2Clive%2Chang%2Cnoclen%2Cmime%2Cgir&sig=AOq0QJ8wRAIgWFTZLV1G33cKJoitlK7dUgNg1KuXyvC6F9F7Lc6x3gcCIHaGjehjvVAjUd6cqMnTLtBq9pPRfQWXM3bwI1qQYqpx&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgR5QVZh23NcLE2nRpo5IT-axGEfUCJrXKMmJHjXQdkCYCIFLsIFacvPpy98zaNSB0RfXswacyc-Ru3sYeEjTFym43&alr=yes&cpn=LlPCcTsE_3Xao9Xh&cver=2.20201016.02.00&sq=2504045&rn=20&rbuf=17971
	# Use MPV or VLC to play the parts. ffmpeg to re-encode / re-mux and then concatenate.

	# You can copy the entire link here, it will be split automatically below
	video_link = ""
	# video_link = "VIDEO LINK THE END -> &sq=" # Look for the substring mime=video to make sure
	video_link = f'{video_link.split(r"&sq=")[0]}&sq='

	# You can copy the entire link here, it will be split automatically below
	sound_link = ""
	# sound_link = "AUDIO LINK THE END -> &sq= " # Look for the substring mime=audio to make sure
	sound_link = f'{sound_link.split(r"&sq=")[0]}&sq='

	# On Youtube, each segment can be equivalent to 1 to several seconds of video (depending on latency settings)
	# The itag determines the quality. 140 for audio seems best, 135 for video means 480p.
	# See https://github.com/pytube/pytube/blob/master/pytube/itags.py for reference.

	# The boadcastID follows the videoID. Format is currently: "&id=videoID.broadcastID&itags="
	YT_HASH = video_link.split("&id=")[1].split('.')[0]
	print(f'Capturing video with Hash ID: {YT_HASH}')

	rootpath = f'stream_capture_{YT_HASH}'
	vidpath = f'{rootpath}{sep}vid'
	audpath = f'{rootpath}{sep}aud'

	# the sequence numbers to begin download from.
	seg = 1

	try:
	makedirs(vidpath, 0o766)
	makedirs(audpath, 0o766)
	except FileExistsError as e:
	# If we resume, get the latest chunk file we already have
	seg = max([int(f[:f.index('.')]) for f in listdir(vidpath)], default=1)
	if seg > 1:
	# Step back one file just in case the latest chunk got only partially
	# downloaded (we want to overwrite it, for good measure)
	seg -= 1
	print(f'Starting from segment: {seg}')

	padding = 10
	try:
	while True:
	video_url = f'{video_link}{seg}'
	sound_url = f'{sound_link}{seg}'

	video_output_file = vidpath + sep + f'{seg:0{padding}}.mp4'
	audio_output_file = audpath + sep + f'{seg:0{padding}}.m4a'

	urllib.request.urlretrieve(video_url, video_output_file)
	urllib.request.urlretrieve(sound_url, audio_output_file)

	print(f"Downloaded part {seg}")
	seg += 1

	except urllib.error.URLError as e:
	print(f'network error {e}')
	except (IOError) as e:
	print(f'file error: {e}')
	#!/bin/bash
	# To be used after using the manual_download.py script
	# and right before mrwnwttk's merge.py script
	# from https://github.com/mrwnwttk/youtube_stream_capture

	# CHANGE THIS!
	# Point to the script located in the submodule, relative to this script's location,
	# otherwise point to where you have installed "youtube_stream_capture"
	MERGE_SCRIPT="$(dirname $(realpath $0))/youtube_stream_capture/merge.py"

	# Make sure the capture directory is there
	# FIXME if there is more than one result, it won't work.
	CAP_DIR=$(find . -maxdepth 1 -type d -iname 'stream_capture*');
	if [[ ${CAP_DIR} == '' ]]; then
	echo "Error getting youtube hash from \"stream_capture_HASH_ID\" directory. Make sure it is present.";
	exit;
	elif [[ $(find "${CAP_DIR}" -maxdepth 1 -type d -iname 'aud') == ''
	\|\| $(find "${CAP_DIR}" -maxdepth 1 -type d -iname 'vid') == '' ]]; then
	echo "aud or vid directory not found in ${CAP_DIR}";
	exit;
	fi

	# Get the Youtube Hash ID from the directory name if present
	YT_HASH="${CAP_DIR##./stream_capture_}";
	if [[ "${YT_HASH}" == "./stream_capture" ]]; then
	YT_HASH="AAAAAAAAAAA";
	echo "Could not detect youtube hash ID in capture dirname, using default ${YT_HASH}";
	else
	echo "Detected youtube hash ID is $YT_HASH";
	fi

	# Create directory expected by merge.py
	target_dirname="segments_${YT_HASH}";
	mkdir -p "${target_dirname}";

	# Create symlinks to our previously downloaded chunks
	cp -s $(pwd)/stream_capture_${YT_HASH}/aud/* ${target_dirname};
	cp -s $(pwd)/stream_capture_${YT_HASH}/vid/* ${target_dirname};

	# Add the hash ID after the digits of each file, as expected by merge.py
	AUDIO_REGEX='s/(\d*)\.m4a/$1_'${YT_HASH}'_audio\.ts/';
	VIDEO_REGEX='s/(\d*)\.mp4/$1_'${YT_HASH}'_video\.ts/';
	perl-rename "${AUDIO_REGEX}" ${target_dirname}/*;
	perl-rename "${VIDEO_REGEX}" ${target_dirname}/*;

	# Optionally, remove any leading padding zeros we added
	perl-rename 's/(.\/)0(\d_.)/$1$2/' ${target_dirname}/*;

	# Call the merge script with bogus youtube URL since it expects one anyway
	python "${MERGE_SCRIPT}" "https://www.youtube.com/watch?v=${YT_HASH}";

	if [[ $? -eq 0 ]]; then
	echo "Removing temporary directory with symlinks \"${target_dirname}\"..."
	rm -r ${target_dirname};
	fi