hls encoder for no-audio analog-source video low resolution

fpv-encode.sh

#!/bin/bash

# https://ffmpeg.org/ffmpeg-formats.html#Options-5

AVIN="$1"
OUTNAME="$2"
mkdir $OUTNAME
ffmpeg -i $AVIN \
    -an \
    -c:v libx264 -profile:v main -level 4.1 -pix_fmt yuv420p \
    -preset veryslow \
    -crf 20 -g 48 -keyint_min 48 -sc_threshold 0 \
    -b:v 2500k -maxrate 3200k -bufsize 3750k \
    -hls_time 10 -hls_list_size 0\
    -hls_segment_filename $OUTNAME/%03d.ts \
    $OUTNAME/index.m3u8