rc/home/streamcrap

#!/bin/zsh
# awful things

MPV_STREAM_FLAGS="--quiet --no-sub --loop=force --cache-secs=10 --cache-initial=1024 --cache-pause --cache-backbuffer=0 --cache-seek-min=2048"
LIVESTREAMER_FLAGS="--player-http --player-continuous-http --default-stream=source,best"
LIVESTREAMER_FLAGS+=" --player-passthrough=http --player-no-close"

_M_STEREO='aformat=channel_layouts=stereo'
_M_PRE_EMPH='equalizer=f=50.0:g=-10:width_type=o:w=4,equalizer=f=5000:g=+05:width_type=o:w=4'
_M_POST_EMPH='equalizer=f=50.0:g=+10:width_type=o:w=4,equalizer=f=5000:g=-05:width_type=o:w=4'
_M_COMPRESS='compand=0.001|0.001:0.25|0.25:-42/-42|0/-21:6:18:-30:0.001'
_M_LIMIT='compand=0.000|0.000:0.10|0.10:-9/-9|0/-6.:3:4.5:-9'
_M_KILL="$_M_STEREO,$_M_PRE_EMPH,$_M_COMPRESS,$_M_POST_EMPH"

getladspa() {
    REPLY="volume"
    if [ -e "/usr/lib/ladspa/${1}.so" ]; then
        REPLY="ladspa=f=${1}:p=${1}"
    fi
}

getladspa crap_eq_const_T420
_M_SPEAKERS="$REPLY"
getladspa crap_level
_M_LEVEL="$REPLY"

_nn="$(uname -n | tr A-Z a-z)"

if [[ "$_nn" == "spectre" ]]; then
    _M_PROCESS="$_M_KILL,alimiter=level_out=0.7071"
fi
if [[ "$_nn" == "banshee" ]]; then
    _M_PROCESS="$_M_LEVEL,$_M_SPEAKERS,alimiter=level_in=0.5"
fi

_mpv_flags() {
    REPLY="$MPV_STREAM_FLAGS --af=lavfi=[$_M_PROCESS]"
}

watchstream1() {
    local url="$1"
    shift
    _mpv_flags
    if [ -n "$ZSH_VERSION" ]; then
        # zsh syntax
        mpv $=REPLY "$url"
    else
        # bash syntax
        mpv $REPLY "$url"
    fi
}

watchstream2() {
    pushd ~/play
    local url="$1"
    shift
    _mpv_flags
    if [ -n "$ZSH_VERSION" ]; then
        # zsh syntax
        livestreamer "$url" "$@" -p mpv $=LIVESTREAMER_FLAGS -a \
          "$REPLY {filename}"
    else
        # bash syntax
        livestreamer "$url" "$@" -p mpv $LIVESTREAMER_FLAGS -a \
          "$REPLY {filename}"
    fi
    popd
}

alias watchstream=watchstream1

twitch() {
    local user="$1"
    shift
    watchstream "http://twitch.tv/$user" "$@"
}

hitbox() {
    local user="$1"
    shift
    watchstream "http://hitbox.tv/$user" "$@"
}

yt() {
    pushd ~/play
    local vid="$1"
    # can't be bothered to use substrings since they differ across bash/zsh
    if [[ "$(head -c4 <<< "$vid")" != "http" ]]; then
        vid="https://www.youtube.com/watch?v=$vid"
    fi
    mpv --af=lavfi="[$_M_PROCESS]" \
      --audio-samplerate=44100 --audio-format=s16 \
      --ytdl-format=22,best "$@" "$vid"
    popd
}

_nn=