Add audio generation + mario theme

1 files changed, 40 insertions, 0 deletions

diff --git a/audio.sh b/audio.sh
new file mode 100755
index 0000000..c5d3c06
--- /dev/null
+++ b/audio.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env sh
+
+set -eu -o pipefail
+
+[ $# -lt 1 ] && echo "Fuck" && exit 1;
+AUDIO_TRACK_ID="$1"
+DB="${2:-fun.db}"
+
+db() { sqlite3 -tabs -noheader "$DB" "$@"; }
+
+samples() {
+  audio_track_id="$1"
+  db "SELECT value FROM audio_track_samples WHERE audio_track_id='$audio_track_id' ORDER BY position ASC"
+}
+
+to_pcm() {
+  awk '{printf "%02x\n", $1}' | xxd -r -p
+}
+
+play() {
+  format="$1"
+  sample_rate="$2"
+  ffplay -f "$format" -ar "$sample_rate" -b:a 128K -ch_layout mono -autoexit -
+}
+
+track_info() {
+  local audio_id="$1"
+  db "SELECT format, sample_rate FROM audio_tracks WHERE id='$audio_id'"
+}
+
+
+# ## Main stuff
+
+data="$(track_info "$AUDIO_TRACK_ID")"
+format="$(echo "$data" | cut -f1)"
+sample_rate="$(echo "$data" | cut -f2)"
+
+echo "-----------$data--------"
+
+samples "$AUDIO_TRACK_ID" | to_pcm | play "$format" "$sample_rate"