Skip to content

Latest commit

 

History

History
134 lines (101 loc) · 7.87 KB

ffmpeg-notes.md

File metadata and controls

134 lines (101 loc) · 7.87 KB

FFMPEG

Use ffmpeg to create mp4 files Use mp4boxes to create manifests

ffmpeg -re -i -map 0 -map 0 -c:a libfdk_aac -c:v libx264
-b:v:0 800k -b:v:1 300k -s:v:1 320x170 -profile:v:1 baseline
-profile:v:0 main -bf 1 -keyint_min 120 -g 120 -sc_threshold 0
-b_strategy 0 -ar:a:1 22050 -use_timeline 1 -use_template 1
-window_size 5 -adaptation_sets "id=0,streams=v id=1,streams=a"
-single_file 1 -single_file_name outputdashed.mpd
-f dash ./out.mpd

/opt/ffmpeg/bin/ffmpeg -re -i output.mp4 -map 0 -map 0 -c:a libfdk_aac -c:v libx264
-b:v:0 800k -b:v:1 300k -s:v:1 320x170 -profile:v:1 baseline
-profile:v:0 main -bf 1 -keyint_min 120 -g 120 -sc_threshold 0
-b_strategy 0 -ar:a:1 22050 -use_timeline 1 -use_template 1
-window_size 5
-single_file 1 -single_file_name outputdashed.mpd
-f dash ./out.mpd

/opt/ffmpeg/bin/ffmpeg -re -i output.mp4 -map 0 -map 0 -c:a copy -c:v copy
-b_strategy 0 -ar:a:1 22050 -use_timeline 1 -use_template 1
-window_size 5
-single_file 1 -single_file_name outputdashed_copy.mp4
-f dash ./out_copy.mpd

/opt/ffmpeg/bin/ffmpeg -re -i output.mp4 -map 0 -map 0 -c:a libfdk_aac -c:v libx264
-b:v:0 800k
-profile:v:0 main -bf 1 -keyint_min 120 -g 120 -sc_threshold 0
-b_strategy 0 -use_timeline 1 -use_template 1
-f dash ./out_copy3.mpd

// ffmpeg -i video.mp4 -an -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 5300k -maxrate 5300k -bufsize 2650k -vf 'scale=-1:1080' video-1080.mp4 MP4Box -dash 1000 -rap -frag-rap -profile onDemand -out video.mpd video-1080.mp4 video-720.mp4 video-480.mp4 video-360.mp4 video-240.mp4 video-audio.mp4 //Working ffmpeg -i ../output.mp4 -an -strict -2 -f dash output.mpd

ffmpeg -i ../output.mp4 -an -strict -2 -b_strategy 0 -use_timeline 1 -use_template 1 -single_file 1 -single_file_name outputdashed_copy.mp4 -f dash output.mpd

MP4 splitting (10+10+30sec)

ffmpeg -i '../output.mp4' -an -sn -c:v copy video.mp4

ffmpeg -i '/media/michael/Data1/tmp/videos/Money Monster (2016)/Money Monster 2016 1080p BluRay x264 DTS-JYK.mkv' -c:a copy -sn -vn audio-en.mp4

MP4Box -dash 1000 -rap -frag-rap -profile onDemand -out video.mpd video.mp4 audio-en.mp4

Audio transcode 1 min

ffmpeg -i 'Money Monster 2016 1080p BluRay x264 DTS-JYK.mkv' -c:a aac -ac 2 -ab 128k -vn audio-aac.mp4

MP4 joining 15 sec

ffmpeg -i video.mp4 -i audio-aac.mp4
-c:v copy -c:a copy joined.mp4

##GPU /opt/ffmpeg/bin/ffmpeg -i 'Money Monster 2016 1080p BluRay x264 DTS-JYK.mkv' -an -c:v h264_nvenc -no-scenecut -pix_fmt yuv420p -b:v 2400k -maxrate 2400k -bufsize 1200k video_x264.mp4

Convert mapping

https://bitmovin.com/video-bitrate-streaming-hls-dash/ res fps br bit/pix 426×240 24 400 0.17 640×360 24 800 0.15 854×480 24 1200 0.12 1280×720 24 2400 0.11 1920×1080 24 4800 0.10 4096×2160 24 16000 0.08

Convert command

https://rybakov.com/blog/mpeg-dash/ 1920×1080 24 ffmpeg -y -i "../output.mp4" -c:a aac -b:a 192k -vn "output_audio.m4a" ffmpeg -i "../output.mp4" -c:a aac -ac 6 -strict -2 -b:a 192k -vn "output_audio.m4a"

ffmpeg -y -i "../output.mp4" -preset slow -tune film -vsync passthrough -write_tmcd 0 -an -c:v libx264 -x264opts 'keyint=25:min-keyint=25:no-scenecut' -crf 22 -maxrate 4800k -bufsize 9600k -pix_fmt yuv420p -f mp4 "output_4800.mp4" /opt/ffmpeg/bin/ffmpeg -y -i "../output.mp4" -preset slow -tune film -vsync passthrough -write_tmcd 0 -an -c:v libx264 -x264opts 'keyint=25:min-keyint=25:no-scenecut' -crf 23 -maxrate 2400k -bufsize 4800k -pix_fmt yuv420p -f mp4 "output_2400.mp4"

static file for ios and old browsers --> generated

#ffmpeg -y -i "output_audio.m4a" -i "output_4800.mp4" -codec copy output_static.mp4

MP4Box -dash 2000 -rap -frag-rap -bs-switching no -profile "dashavc264:live" "output_4800.mp4" "output_audio.m4a" -out "output.mpd"

create a jpg for poster. Use imagemagick or just save the frame directly from ffmpeg is you don't have mozcjpeg installed.

ffmpeg -i "${fe}" -ss 00:00:00 -vframes 1  -qscale:v 10 -n -f image2 - | mozcjpeg -progressive -quality 2,35 -quant-table 2 -outfile "${f}"/"${f}".jpg

#ffmpeg only single file

only video convert

/opt/ffmpeg/bin/ffmpeg -re -i ../output.mp4 -an -sn -c:v libx264
-b:v:0 4800k -profile main -bf 1 -keyint_min 120 -g 120 -sc_threshold 0
-b_strategy 0 -use_timeline 1 -use_template 1 -single_file 1 -single_file_name video1.mp4
-f dash ./video1.mpd

only video cpy

/opt/ffmpeg/bin/ffmpeg -re -i video1.mp4 -an -sn -c:v copy
-use_timeline 1 -use_template 1 -single_file 1 -single_file_name video1-cpy.mp4
-f dash ./video1.mpd

only audio

/opt/ffmpeg/bin/ffmpeg -re -i ../output.mp4 -vn -sn -c:a libfdk_aac
-ac 2 -ab 128k -vn
-use_timeline 1 -use_template 1 -single_file 1 -single_file_name audio1.mp4
-f dash ./audio1.mpd

/opt/ffmpeg/bin/ffmpeg -i ../output.mp4 -vn -sn -c:a libfdk_aac
-ac 2 -ab 128k -vn
-use_timeline 1 -use_template 1 -single_file 1 -single_file_name audio1.mp4
-f dash ./audio1.mpd

#ffmpeg templates ffmpeg -i b6fd76b86b20322b0c6a1f5e869a1fac4b34987e896e2ecb26c53d6aabd54e9b.mp4 -y -an -sn -c:v libx264 -b:v:0 500K -profile main -preset veryfast -keyint_min 48 -g 48 -b_strategy 0 -sc_threshold 0 -use_timeline 1 -min_seg_duration 4000 -use_template 1 -f dash video_only/video.mpd

ffmpeg -i b6fd76b86b20322b0c6a1f5e869a1fac4b34987e896e2ecb26c53d6aabd54e9b.mp4 -y -vn -sn -c:a:0 libfdk_aac -ac 2 -ab 384K -use_timeline 1 -min_seg_duration 4000 -use_template 1 -f dash audio_only/audio.mpd

both ffmpeg -i b6fd76b86b20322b0c6a1f5e869a1fac4b34987e896e2ecb26c53d6aabd54e9b.mp4 -y -sn -c:v libx264 -b:v:0 500K -profile main -preset veryfast -keyint_min 48 -g 48 -b_strategy 0 -sc_threshold 0 -c:a:0 libfdk_aac -ac 2 -ab 384K -use_timeline 1 -min_seg_duration 4000 -use_template 1 -f dash video_audio/video_audio.mpd

or ffmpeg -i b6fd76b86b20322b0c6a1f5e869a1fac4b34987e896e2ecb26c53d6aabd54e9b.mp4 -y -sn -c:v libx264 -b:v:0 500K -profile main -preset veryfast -keyint_min 48 -g 48 -b_strategy 0 -sc_threshold 0 -c:a:0 libfdk_aac -ac 2 -ab 384K -use_timeline 0 -min_seg_duration 4000 -use_template 1 -f dash video_audio_notime/video_audio.mpd

multi resolution ffmpeg -i b6fd76b86b20322b0c6a1f5e869a1fac4b34987e896e2ecb26c53d6aabd54e9b.mp4 -map 0:0 -map 0:0 -map 0:1 -y -sn -c:v:0 libx264 -b:v:0 500K -profile:v:0 main -preset:v:0 veryfast -keyint_min:v:0 48 -g 48 -b_strategy:v:0 0 -sc_threshold:v:0 0 -c:v:1 libx264 -b:v:1 300K -filter:v:1 scale=480:-2 -profile:v:1 main -preset:v:1 veryfast -keyint_min 48 -g 48 -b_strategy 0 -sc_threshold 0 -c:a:0 libfdk_aac -ac 2 -ab 384K -use_timeline 0 -min_seg_duration 4000 -use_template 1 -f dash video_audio_scale/video_audio.mpd

libx264 options

https://sites.google.com/site/linuxencoding/x264-ffmpeg-mapping

export PATH=/opt/ffmpeg/bin:$PATH test ffmpeg -i b6fd76b86b20322b0c6a1f5e869a1fac4b34987e896e2ecb26c53d6aabd54e9b.mp4 -map 0:0 -map 0:0 -map 0:1 -map 0:2 -y -c:v:0 libx264 -b:v:0 500K -profile:v:0 main -preset:v:0 veryfast -keyint_min:v:0 48 -g 48 -b_strategy:v:0 0 -sc_threshold:v:0 0 -c:v:1 libx264 -b:v:1 300K -filter:v:1 scale=480:-2 -profile:v:1 main -preset:v:1 veryfast -keyint_min 48 -g 48 -b_strategy 0 -sc_threshold 0 -c:a:0 libfdk_aac -ac 2 -ab 384K -c:s:0 webvtt webvtt -f webvtt second.vtt -use_timeline 0 -min_seg_duration 4000 -use_template 1 -f dash video_audio_sub/all.mpd

extract sub ffmpeg -i b6fd76b86b20322b0c6a1f5e869a1fac4b34987e896e2ecb26c53d6aabd54e9b.mp4 -map 0:2 -map 0:0 -c:s:0 webvtt -flush_packets 1 -f webvtt first.vtt -map 0:0 -map 0:1 -y -c:v:0 libx264 -b:v:0 500K -profile:v:0 main -preset:v:0 veryfast -keyint_min:v:0 48 -g 48 -b_strategy:v:0 0 -sc_threshold:v:0 0 -c:v:1 libx264 -b:v:1 300K -filter:v:1 scale=480:-2 -profile:v:1 main -preset:v:1 veryfast -keyint_min 48 -g 48 -b_strategy 0 -sc_threshold 0 -c:a:0 libfdk_aac -ac 2 -ab 384K -use_timeline 0 -min_seg_duration 4000 -use_template 1 -f dash video_audio_sub/all.mpd

ffmpeg -i '/media/michael/Data2/tmp/upload/adev/Westworld.S02E01.720p.WEB.H264-DEFLATE.mkv' -y -c:s:0 webvtt -flush_packets 1 -f webvtt first.vtt