HTTP Live Streaming -- Transport Stream Video Download

desc.sh

#!/bin/bash

file=$(sed -e 's/[[:space:]]/_/g' <<< $1)
desc=$2

echo "
$desc
" > Practica_6/$file.txt
#EOF

down.sh

#!/bin/bash

trim_name=$(sed -e 's/[[:space:]]/_/g' <<< $3)
echo "[+] Downloading video $trim_name"

bash download.bash "Practica_6/$trim_name" $1 $2 "$trim_name"
#EOF

ts-download-v1.0.sh

#!/bin/bash

:<<'USAGE'
	$exrc		$urlp		$urls
	$1		$2		$3
 $0 Pratica3-Limite <URL_PLAYLIST> <URL_SEGMENT>
-------
# Note:
+ I don't know why it happens

# TODO:
- [ ] Add empty parameter check
- [ ] Make more reliable
USAGE

# Exercise directory:
# + $exrc to make this script more reliable.
exrc=$1
plstd="$exrc/playlist"

# Create playlist directory only when necessary...
[[ -d "$plstd" ]] || mkdir -p "$plstd"

# Playlist URL: This does the dirty hack to increase the video quality from 520px to 720px.
# + Is there a way to assign the value to "urlp" without create "_urlp"?
# + If caught "(standard_in) 1: syntax error": You missed the URL PLAYLIST.
_urlp=$2 && urlp="https://$(cut -d '/' -f3-8 <<<${_urlp})"

#"https://$("$_urlp" | cut -d "/" -f3-8)"
#	${_urlp:0:161}$(bc -l <<< ${_urlp: -23:-14})${_urlp: -14}


# Pratica3-Limite/playlist/playlist.m3u8
plst="$plstd/playlist.m3u8" 

# Download PLAYLIST
wget "$urlp" -O "$plst" -q --show-progress

[[ -f "$PWD/$plst" ]] && last_ts_number=$(grep -oP "^[^#].*-\K([0-9]+)" "$plst" | tail -1) \
	|| (echo "[!] File \"$plst\" not found." && exit 1)

# URL Segment
# + Is there a way to assign the value to "urls" without create "_urls"?
# + If caught "(standard_in) 1: syntax error": You missed the URL SEGMENT TS.
_urls=$3 && urls="https://$(cut -d '/' -f3-8 <<<${_urls})"
#urls="https://$($_urls | cut -d "/" -f3-8)"
#urls=${_urls:0:161}$(bc -l <<< ${_urls: -27:-18})${_urls: -18:-12}

# chop directory
chpd="$exrc/chop"
[[ -d "$chpd" ]] || mkdir "$chpd"

for i in $(seq 1 $last_ts_number); do
	tsf="segment-$i.ts"
	[[ -e "$chpd/$tsf" ]] && \
		(# TRUE: overwrite the ts file if it exists.
			echo "[-] The file already exists, so overwriting him: \"$tsf\"" \
			&& wget "$urls/$tsf" -O "$chpd/$tsf"  -q --show-progress
		) || ( 
		# FALSE: perform a regular ts file download.
		echo "[+] Downloading the file: segment-$i.ts" \
		&& wget "$urls/$tsf" -P "$chpd" -q --show-progress
	)
	case "$?" in
		1) echo "[!] An error occurred, turn debug on and check it. Program aborted."
			exit $?;;
	esac
done

# The loop status is respective from last executed command
[[ 0 -eq $? ]] && \
	(# Remaining two more commands to complete the video download
		out=$4
		sed -i "/^#EXT/! s/^\(chop.*\)/file \'\.\.\/\1\'/g" "$plst" \
		&& ffmpeg -f concat -safe 0 -i "$plst" -c copy "$exrc/$out.mp4"
	)
#EOF

ts-download-v1.1.sh

#!/bin/bash

:<<'USAGE'
	$exrc		$urlp		$urls
	$1		$2		$3
 $0 Pratica3-Limite <URL_PLAYLIST> <URL_SEGMENT>
-------
# Note:
+ I don't know why it happens

# TODO:
- [ ] Add empty parameter check
- [ ] Make more reliable
USAGE

# Exercise directory:
# + $exrc to make this script more reliable.
exrc=$1
plstd="$exrc/playlist"

# Create playlist directory only when necessary...
[[ -d "$plstd" ]] || mkdir -p "$plstd"

# Playlist URL: This does the dirty hack to increase the video quality from 520px to 720px.
# + Is there a way to assign the value to "urlp" without create "_urlp"?
# + If caught "(standard_in) 1: syntax error": You missed the URL PLAYLIST.
_urlp=$2 && urlp="https://$(cut -d '/' -f3-8 <<<${_urlp})"

#"https://$("$_urlp" | cut -d "/" -f3-8)"
#	${_urlp:0:161}$(bc -l <<< ${_urlp: -23:-14})${_urlp: -14}


# Pratica3-Limite/playlist/playlist.m3u8
plst="$plstd/playlist.m3u8" 

# Download PLAYLIST
wget "$urlp" -O "$plst" -q --show-progress

[[ -f "$PWD/$plst" ]] && last_ts_number=$(grep -oP "^[^#].*-\K([0-9]+)" "$plst" | tail -1) \
	|| (echo "[!] File \"$plst\" not found." && exit 1)

# URL Segment
# + Is there a way to assign the value to "urls" without create "_urls"?
# + If caught "(standard_in) 1: syntax error": You missed the URL SEGMENT TS.
_urls=$3 && urls="https://$(cut -d '/' -f3-8 <<<${_urls})"
#urls="https://$($_urls | cut -d "/" -f3-8)"
#urls=${_urls:0:161}$(bc -l <<< ${_urls: -27:-18})${_urls: -18:-12}

# chop directory
chpd="$exrc/chop"
[[ -d "$chpd" ]] || mkdir "$chpd"

for i in $(seq 1 $last_ts_number); do
	tsf="segment-$i.ts"
	[[ -e "$chpd/$tsf" ]] && \
		(# TRUE: overwrite the ts file if it exists.
			echo "[-] The file already exists, so overwriting him: \"$tsf\"" \
			&& wget "$urls/$tsf" -O "$chpd/$tsf"  -q --show-progress
		) || ( 
		# FALSE: perform a regular ts file download.
		echo "[+] Downloading the file: segment-$i.ts" \
		&& wget "$urls/$tsf" -P "$chpd" -q --show-progress
	)
	case "$?" in
		1) echo "[!] An error occurred, turn debug on and check it. Program aborted."
			exit $?;;
	esac
done

# The loop status is respective from last executed command
[[ 0 -eq $? ]] && \
	(# Remaining two more commands to complete the video download
		out=$4
		sed -i "/^#EXT/! s/^\(chop.*\)/file \'\.\.\/\1\'/g" "$plst" \
		&& ffmpeg -f concat -safe 0 -i "$plst" -c copy "$exrc/$out.mp4"
	)
#EOF

Public after 4 years.