Include DASH for default max resolution selection & download

[himadri0327]

When the highest resolution is DASH, automatically download & mux max-res DASH-VIDEO (say 137) with max bitrate DASH-AUDIO (say 141) as part of the default max resolution selection & download algorithm.

Currently I manually determine if 1080p is only in DASH format and if so run a cmd-script (like below) and thought it could probably be included in youtube-dl itself.

set URL=%*
youtube-dl --get-filename %URL% >tmpfile
set /p fname= <tmpfile
del tmpfile
echo %fname%
youtube-dl --no-mtime --retries 20 -f 137 %URL% -o tmp.vid
youtube-dl --no-mtime --retries 20 -f 141 %URL% -o tmp.aud
ffmpeg -i tmp.vid -i tmp.aud -c copy "%fname%"
del tmp.vid
del tmp.aud

[jonathanong]

+1 i just started using youtube-dl and was wondering why everything was in 720p :(

[davidscholberg]

For *nix users, this is a sh script that does basically the same thing as the cmd script above:

#!/bin/sh

set -e

VIDEO_NAME=$(youtube-dl --get-filename "$1")
echo "$VIDEO_NAME"

VIDEO_ID=$(youtube-dl --get-id "$1")

youtube-dl -f 137 -o '%(id)s.vid' "$1"
youtube-dl -f 141 -o '%(id)s.aud' "$1"

ffmpeg -i "$VIDEO_ID.vid" -i "$VIDEO_ID.aud" -c copy "$VIDEO_NAME"

rm "$VIDEO_ID".*

I think if this functionality is integrated into youtube-dl, it should probably be an option rather than default behavior, since ffmpeg seems to be an optional dependency.

[diffycat]

This script will download and merge >1080p or 1080 video, otherwise fallback to default youtube-dl behaviour. Just tweak it's options.

#! /usr/bin/env bash

default_options='-o "$HOME/incom/youtube/%(title)s-%(id)s.%(ext)s"'
download_dir="$HOME/incom/youtube/"
temp_dir=/tmp/youtube-dl/

if command -v ffmpeg >/dev/null 2>&1; then

  if youtube-dl -F "$1" | grep -q 138 ; then

    video_id=$(youtube-dl --get-id "$1")
    video_name=$(youtube-dl --get-filename "$1")

    youtube-dl -f 138 -o "$temp_dir"'%(id)s.vid' "$1"
    youtube-dl -f 141 -o "$temp_dir"'%(id)s.aud' "$1"

    ffmpeg -i "$temp_dir$video_id.vid" -i "$temp_dir$video_id.aud" -c copy "$download_dir$video_name"

  elif youtube-dl -F "$1" | grep -q 137 ; then

    video_id=$(youtube-dl --get-id "$1")
    video_name=$(youtube-dl --get-filename "$1")

    youtube-dl -f 137 -o "$temp_dir"'%(id)s.vid' "$1"
    youtube-dl -f 141 -o "$temp_dir"'%(id)s.aud' "$1"

    ffmpeg -i "$temp_dir$video_id.vid" -i "$temp_dir$video_id.aud" -c copy "$download_dir$video_name"

  else
    youtube-dl "$1" "$default_options"
  fi

else
  youtube-dl "$1" "$default_options"
fi

[mikilion]

Based on the davidscholberg's script I'd suggest this modify:

#!/bin/sh

set -e

VIDEO_NAME=$(youtube-dl --get-filename "$1")
echo "$VIDEO_NAME"

UA=$(youtube-dl --dump-user-agent)
URL_V=$(youtube-dl -g -f 137 "$1")
URL_A=$(youtube-dl -g -f 141 "$1")

ffmpeg -i "$URL_V" -i "$URL_A" -user-agent "$UA" -multiple_requests 1  -c copy "$VIDEO_NAME"

[Strayer]

Since you can't download whole playlists with these helper scripts, I built a small python script that lists all playlist video URLs. This, combined with xargs, allows the download of full playlists.

Source: https://gist.github.com/Strayer/7627277
Usage: youtube-playlist-links PL_gF8zzsamW5WwU-e6_5PP5r8Lir-NHS6 | xargs -l 1 youtube-dash-dl

I also made some changes to the script of davidscholberg to avoid incomplete files and skip fully downloaded ones:
https://gist.github.com/Strayer/7989654

Edit: Small change to the youtube-dl-dash script since I stumbled upon a video id that begins with a -, which is interpreted as a command line option and breaks the script.

Edit no. 2: The script now uses the best formats available and is not hardcoded to 1080p anymore, falls back to default youtube-dl if there are no DASH Video sources. (Are there actually any videos without DASH now?)

[Hrxn]

Zombie issue found. Needs to be closed ASAP.

[jaimeMF]

This has been the default behaviour for a long time. Closing.

Thanks @Hrxn.