Convert files to HLS (.m3u8) about axiom HOT 8 OPEN

"F:\convertvideos\Axiom.FFmpeg\ffmpeg\bin\ffmpeg.exe" 

-y 

-hwaccel cuda 

-i "F:\test\test.mp4"

-vf scale=w=1280:h=720:force_original_aspect_ratio=decrease 
-c:a aac
-ar 44100 
-b:a 128k 
-c:v h264_nvenc
-profile:v main 
-crf 20
-g 48 
-keyint_min 48 
-sc_threshold 0
-b:v 2500k
-maxrate 2675k 
-bufsize 3750k 
-hls_time 4 
-hls_playlist_type vod 
-hls_segment_filename test/720p_%03d.ts test/720p.m3u8

#!/usr/bin/env bash

set -e

# Usage create-vod-hls.sh SOURCE_FILE [OUTPUT_NAME]
[[ ! "${1}" ]] && echo "Usage: create-vod-hls.sh SOURCE_FILE [OUTPUT_NAME]" && exit 1

# comment/add lines here to control which renditions would be created
renditions=(
# resolution  bitrate  audio-rate
#  "426x240    400k    64k"
  "640x360    800k     96k"
  "842x480    1400k    128k"
  "1280x720   2800k    128k"
  "1920x1080  5000k    192k"
)

segment_target_duration=4       # try to create a new segment every X seconds
max_bitrate_ratio=1.07          # maximum accepted bitrate fluctuations
rate_monitor_buffer_ratio=1.5   # maximum buffer size between bitrate conformance checks

#########################################################################

source="${1}"
target="${2}"
if [[ ! "${target}" ]]; then
  target="${source##*/}" # leave only last component of path
  target="${target%.*}"  # strip extension
fi
mkdir -p ${target}


key_frames_interval="$(echo `ffprobe ${source} 2>&1 | grep -oE '[[:digit:]]+(.[[:digit:]]+)? fps' | grep -oE '[[:digit:]]+(.[[:digit:]]+)?'`*2 | bc || echo '')"
key_frames_interval=${key_frames_interval:-50}
key_frames_interval=$(echo `printf "%.1f\n" $(bc -l <<<"$key_frames_interval/10")`*10 | bc) # round
key_frames_interval=${key_frames_interval%.*} # truncate to integer

# static parameters that are similar for all renditions
static_params="-c:a aac -ar 48000 -c:v h264 -profile:v main -crf 20 -sc_threshold 0"
static_params+=" -g ${key_frames_interval} -keyint_min ${key_frames_interval} -hls_time ${segment_target_duration}"
static_params+=" -hls_playlist_type vod"

# misc params
misc_params="-hide_banner -y"

master_playlist="#EXTM3U
#EXT-X-VERSION:3
"
cmd=""
for rendition in "${renditions[@]}"; do
  # drop extraneous spaces
  rendition="${rendition/[[:space:]]+/ }"

  # rendition fields
  resolution="$(echo ${rendition} | cut -d ' ' -f 1)"
  bitrate="$(echo ${rendition} | cut -d ' ' -f 2)"
  audiorate="$(echo ${rendition} | cut -d ' ' -f 3)"

  # calculated fields
  width="$(echo ${resolution} | grep -oE '^[[:digit:]]+')"
  height="$(echo ${resolution} | grep -oE '[[:digit:]]+$')"
  maxrate="$(echo "`echo ${bitrate} | grep -oE '[[:digit:]]+'`*${max_bitrate_ratio}" | bc)"
  bufsize="$(echo "`echo ${bitrate} | grep -oE '[[:digit:]]+'`*${rate_monitor_buffer_ratio}" | bc)"
  bandwidth="$(echo ${bitrate} | grep -oE '[[:digit:]]+')000"
  name="${height}p"
  
  cmd+=" ${static_params} -vf scale=w=${width}:h=${height}:force_original_aspect_ratio=decrease"
  cmd+=" -b:v ${bitrate} -maxrate ${maxrate%.*}k -bufsize ${bufsize%.*}k -b:a ${audiorate}"
  cmd+=" -hls_segment_filename ${target}/${name}_%03d.ts ${target}/${name}.m3u8"
  
  # add rendition entry in the master playlist
  master_playlist+="#EXT-X-STREAM-INF:BANDWIDTH=${bandwidth},RESOLUTION=${resolution}\n${name}.m3u8\n"
done

# start conversion
echo -e "Executing command:\nffmpeg ${misc_params} -i ${source} ${cmd}"
ffmpeg ${misc_params} -i ${source} ${cmd}

# create master playlist file
echo -e "${master_playlist}" > ${target}/playlist.m3u8

echo "Done - encoded HLS is at ${target}/"

cd /d "F:\test\" 

&& 

for /f "delims=" %f in (' 

@"F:\Axiom.FFmpeg\youtube-dl\youtube-dl.exe" 
--get-filename -o "%(title)s" "https://www.youtube.com/watch?v=Cr8GwDXuOLg" 
') 

do ( 

@"F:\Axiom.FFmpeg\youtube-dl\youtube-dl.exe" 

-f bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio/best 

"https://www.youtube.com/watch?v=Cr8GwDXuOLg" 
-o "F:\test\%f.mkv" 

 --ffmpeg-location "F:\Axiom.FFmpeg\ffmpeg\bin\ffmpeg.exe" 

--merge-output-format mkv

&& 

"F:\Axiom.FFmpeg\ffmpeg\bin\ffmpeg.exe" 

-y 

-hwaccel cuda

-i "F:\test\%f.mkv"

-vf scale=w=1280:h=720:force_original_aspect_ratio=decrease
-pix_fmt nv21
-preset slow
-g 48 
-sc_threshold 0
-map 0:0 -map 0:1 -map 0:0 -map 0:1
-s:v:0 640x360 -c:v:0 libx264 -b:v:0 365k
-s:v:1 960x540 -c:v:1 libx264 -b:v:1 2000k
-c:v h264_nvenc
-var_stream_map "v:0,a:0 v:1,a:1"
-master_pl_name master.m3u8
-f hls -hls_time 2 -hls_list_size 0
-hls_segment_filename "v%v/fileSequence%d.ts"
v%v/prog_index.m3u8

&& 

del "F:\test\%f.mkv" 
)