#!/bin/sh

# example pipeline to download HSL streams from raiplay.it

set -e

[ "x$1" = "x" -o "x$2" = x ] && { echo "usage: $(basename $0) <source_m3u8_url> <output_file>" 1>&2; exit 1; }

SOURCE_URL="$1"
OUTPUT_FILE="$2"

# use a fixed and high value for connection-speed to download the best quality video
gst-launch-1.0 \
  \
  mp4mux name=mp4 fragment-duration=10 ! \
  filesink location="$OUTPUT_FILE" \
  \
  "$SOURCE_URL" ! \
  hlsdemux connection-speed=4294967 ! \
  tsdemux name=ts \
  \
  ts.video_0_0100 ! h264parse ! queue ! \
  mp4.video_00 \
  \
  ts.audio_0_0101 ! decodebin ! audioconvert ! lamemp3enc ! queue ! \
  mp4.audio_00

# NOTE: the audio re-encoding is necessary because aacparse lacks some
# functionality, see: https://bugzilla.gnome.org/show_bug.cgi?id=723551