encoder.md

https://www.wowza.com/docs/how-to-encode-vod-using-ffmpeg-with-wowza-streaming-engine

OLD SYSTEM

ffmpeg -loglevel quiet -y -i input.mkv -s 256x144 -y -strict experimental -acodec aac -ab 24k -ac 2 -ar 48000 -vcodec libx264 -vprofile baseline -level 30 -g 48 -sc_threshold 0 -pass 1 -b:v 50k -threads 16 output.mkv

ffmpeg -loglevel quiet -y -i input.mkv -s 640x360 -y -strict experimental -acodec aac -ab 64k -ac 2 -ar 48000 -vcodec libx264 -vprofile baseline -level 30 -g 48 -sc_threshold 0 -pass 2 -b:v 400k -threads 16 output.mkv

ffmpeg -loglevel quiet -y -i input.mkv -s 1920x1080 -y -strict experimental -acodec aac -ab 128k -ac 2 -ar 48000 -vcodec libx264 -vprofile baseline -level 30 -g 48 -sc_threshold 0 -pass 2 -b:v 2500k -threads 16 output.mkv

FROM WOWZA BASIC TUTORIAL

ffmpeg -i input.mkv -pix_fmt yuv420p -deinterlace -vf "scale=1280:720" -vsync 1 -threads 0 -vcodec libx264 -r 29.970 -g 60 -sc_threshold 0 -b:v 1024k -bufsize 1216k -maxrate 1280k -preset medium -tune film -acodec aac -b:a 128k -ac 2 -ar 48000 -af "aresample=async=1:min_hard_comp=0.100000:first_pts=0" -y output.mp4

ffmpeg -i input.mkv -pix_fmt yuv420p -deinterlace -vf "scale=1280:720" -vsync 1 -threads 0 -vcodec libx264 -r 29.970 -g 60 -sc_threshold 0 -b:v 1024k -bufsize 1216k -maxrate 1280k -preset medium -tune film -acodec aac -b:a 128k -ac 2 -ar 48000 -af "aresample=async=1:min_hard_comp=0.100000:first_pts=0" -f mp4 -y output.mp4

ffmpeg -loglevel quiet -y -i input.mkv -s 1280x720 -y -strict experimental -acodec aac -ab 96k -ac 2 -ar 48000 -vcodec libx264 -vprofile baseline -level 30 -g 48 -sc_threshold 0 -pass 2 -b:v 1200k -threads 16 output-complex.mp4

SIMPLE DAN BAGUS

• 240p

  ffmpeg -i input.mkv -s 426x240 -threads 16 hasil-240p.mp4

• 360p

  ffmpeg -i input.mkv -s nhd hasil-ntsc.mp4
  
  # or
  
  ffmpeg -i input.mkv -s 640x360 hasil-ntsc-2.mp4

• 480p

  ffmpeg -i input.mkv -s ntsc hasil-ntsc.mp4
  
  # or
  
  ffmpeg -i input.mkv -s 720x480 hasil-ntsc-2.mp4
  
  # or (youtube recomendation)
  
  ffmpeg -i input.mkv -s 854x480 -g 60 -sc_threshold 0 -loglevel quiet -y hasil-480p-youtube.mp4

• 720p

  ffmpeg -i input.mkv -s hd720 hasil-hd720.mp4
  
  # or
  
  ffmpeg -i input.mkv -s 1280x720 hasil-hd720-2.mp4

Optimization encoding

-threads 0 # use all core for enccoding process
-threads 16 # use 16 core for encoding process

Bitrate Quality (default 23)

-crf 23

Rewrite file

-y output.mp4

example: ffmpeg -i input.mkv -s nhd -y hasil-ntsc.mp4

SHOW FILE INFORMATION

ffprobe -v quiet -print_format json -show_format -show_streams output.mkv

For adaptive-bitrate switching

-sc_threshold 0

YOUTUBE RECOMENDATION

• 2160p: 3840x2160
• 1440p: 2560x1440
• 1080p: 1920x1080
• 720p: 1280x720
• 480p: 854x480
• 360p: 640x360
• 240p: 426x240

ffmpeg.org

• ‘ntsc’ -> 720x480
• ‘pal’ -> 720x576
• ‘qntsc’ -> 352x240
• ‘qpal’ -> 352x288
• ‘sntsc’ -> 640x480
• ‘spal’ -> 768x576
• ‘film’ -> 352x240
• ‘ntsc-film’ -> 352x240
• ‘sqcif’ -> 128x96
• ‘qcif’ -> 176x144
• ‘cif’ -> 352x288
• ‘4cif’ -> 704x576
• ‘16cif’ -> 1408x1152
• ‘qqvga’ -> 160x120
• ‘qvga’ -> 320x240
• ‘vga’ -> 640x480
• ‘svga’ -> 800x600
• ‘xga’ -> 1024x768
• ‘uxga’ -> 1600x1200
• ‘qxga’ -> 2048x1536
• ‘sxga’ -> 1280x1024
• ‘qsxga’ -> 2560x2048
• ‘hsxga’ -> 5120x4096
• ‘wvga’ -> 852x480
• ‘wxga’ -> 1366x768
• ‘wsxga’ -> 1600x1024
• ‘wuxga’ -> 1920x1200
• ‘woxga’ -> 2560x1600
• ‘wqsxga’ -> 3200x2048
• ‘wquxga’ -> 3840x2400
• ‘whsxga’ -> 6400x4096
• ‘whuxga’ -> 7680x4800
• ‘cga’ -> 320x200
• ‘ega’ -> 640x350
• ‘hd480’ -> 852x480
• ‘hd720’ -> 1280x720
• ‘hd1080’ -> 1920x1080
• ‘2k’ -> 2048x1080
• ‘2kflat’ -> 1998x1080
• ‘2kscope’ -> 2048x858
• ‘4k’ -> 4096x2160
• ‘4kflat’ -> 3996x2160
• ‘4kscope’ -> 4096x1716
• ‘nhd’ -> 640x360
• ‘hqvga’ -> 240x160
• ‘wqvga’ -> 400x240
• ‘fwqvga’ -> 432x240
• ‘hvga’ -> 480x320
• ‘qhd’ -> 960x540
• ‘2kdci’ -> 2048x1080
• ‘4kdci’ -> 4096x2160
• ‘uhd2160’ -> 3840x2160
• ‘uhd4320’ -> 7680x4320