Sur d’autres sites (8362)

• How to concate videos which some have audio and some haven't audio in FFMPEG [duplicate]

  21 juin 2019, par Nikunj Paradva

  This question already has an answer here :

  • FFmpeg : concat multiple videos, some with audio, some without
    
    1 answer
    
  • FFmpeg concatenation, no Audio in Final Output
    
    1 answer
    

  What i am doing :->

  I am currently concat videos using FFMPEG. while selecting input videos I don’t know videos have audio stream or not. then i concate that videos with this command which is written below,

  I got this error because of one input have no sound stream

  What i have to do :->

  • how to check that input video have audio or not ?
  • how to concate this video inputs ?(one with audio another with no audio)
  • if possible all this thing in single command ?

  FFMPEG Command :-

   [-y,
  
     -i, /storage/emulated/0/Received/MP4_20190220_114210.mp4,
  
     -i, /storage/emulated/0/Received/VID-20190404-WA0010.mp4,
  
     -strict, experimental,
  
     -filter_complex, [0:v]scale=iw*min(854/iw\,480/ih):ih*min(854/iw\,480/ih), pad=854:480:(854-iw*min(854/iw\,480/ih))/2:(480-ih*min(854/iw\,480/ih))/2,setsar=1:1[v0];
  
                      [1:v]scale=iw*min(854/iw\,480/ih):ih*min(854/iw\,480/ih), pad=854:480:(854-iw*min(854/iw\,480/ih))/2:(480-ih*min(854/iw\,480/ih))/2,setsar=1:1[v1];
  
                      [v0][0:a][v1][1:a] concat=n=2:v=1:a=1,
  
     -preset, ultrafast,
  
     /storage/emulated/0/Video/Video_1561115811161.mp4]

  I got this Error While Executing.

  ffmpeg version n4.0-39-gda39990 Copyright (c) 2000-2018 the FFmpeg developers
  
        built with gcc 4.9.x (GCC) 20150123 (prerelease)
  
        configuration: --target-os=linux --cross-prefix=/root/bravobit/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/root/bravobit/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-ffprobe --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-libvpx --enable-libass --enable-yasm --enable-pthreads --disable-debug --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-linux-perf --disable-doc --disable-shared --enable-static --enable-runtime-cpudetect --enable-nonfree --enable-network --enable-avresample --enable-avformat --enable-avcodec --enable-indev=lavfi --enable-hwaccels --enable-ffmpeg --enable-zlib --enable-gpl --enable-small --enable-nonfree --pkg-config=pkg-config --pkg-config-flags=--static --prefix=/root/bravobit/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/root/bravobit/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/root/bravobit/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-cxxflags=
  
        libavutil      56. 14.100 / 56. 14.100
  
        libavcodec     58. 18.100 / 58. 18.100
  
        libavformat    58. 12.100 / 58. 12.100
  
        libavdevice    58.  3.100 / 58.  3.100
  
        libavfilter     7. 16.100 /  7. 16.100
  
        libavresample   4.  0.  0 /  4.  0.  0
  
        libswscale      5.  1.100 /  5.  1.100
  
        libswresample   3.  1.100 /  3.  1.100
  
        libpostproc    55.  1.100 / 55.  1.100
  
      Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Received/MP4_20190220_114210.mp4':
  
        Metadata:
  
          major_brand     : iso6
  
          minor_version   : 1
  
          compatible_brands: mp42iso6avc1isom
  
          creation_time   : 2019-02-20T06:12:15.000000Z
  
        Duration: 00:00:23.46, start: 0.000000, bitrate: 309 kb/s
  
          Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 426x426, 243 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
  
          Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 32000 Hz, stereo, fltp, 64 kb/s (default)
  
      Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Received/VID-20190404-WA0010.mp4':
  
        Metadata:
  
          major_brand     : mp42
  
          minor_version   : 1
  
          compatible_brands: mp41mp42isom
  
          creation_time   : 2018-11-24T20:20:48.000000Z
  
        Duration: 00:00:59.51, start: 0.066667, bitrate: 649 kb/s
  
          Stream #1:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 640x640, 646 kb/s, 29.98 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
          Metadata:
  
            creation_time   : 2018-11-24T20:20:48.000000Z
  
            handler_name    : Core Media Video
  
      Stream specifier ':a' in filtergraph description [0:v]scale=iw*min(854/iw\,480/ih):ih*min(854/iw\,480/ih), pad=854:480:(854-iw*min(854/iw\,480/ih))/2:(480-ih*min(854/iw\,480/ih))/2,setsar=1:1[v0];[1:v]scale=iw*min(854/iw\,480/ih):ih*min(854/iw\,480/ih), pad=854:480:(854-iw*min(854/iw\,480/ih))/2:(480-ih*min(854/iw\,480/ih))/2,setsar=1:1[v1];[v0][0:a][v1][1:a] concat=n=2:v=1:a=1 matches no streams.

  Your help would be appreciated.

• How to enable LHLS in FFMPEG 4.1 ?

  27 décembre 2020, par mehdi.r

  I am trying to create a low latency CMAF video stream using FFMPEG.
To do so, I would like to enable the lhls option in FFMPEG in order to have the #EXT-X-PREFETCH tag written in the HLS manifest.

  



  From the FFMPEG doc :

  



  https://www.ffmpeg.org/ffmpeg-all.html

  



  


  Enable Low-latency HLS(LHLS). Adds #EXT-X-PREFETCH tag with current >segment’s URI. Apple doesn’t have an official spec for LHLS. Meanwhile >hls.js player folks are trying to standardize a open LHLS spec. The >draft spec is available in https://github.com/video-dev/hlsjs->rfcs/blob/lhls-spec/proposals/0001-lhls.md This option will also try >to comply with the above open spec, till Apple’s spec officially >supports it. Applicable only when streaming and hls_playlist options >are enabled. This is an experimental feature.

  


  



  I am using the following command with FFMPEG 4.1 :

  



  ffmpeg -re -i ~/Documents/videos/BigBuckBunny.mp4 \
    -map 0 -map 0 -map 0 -c:a aac -c:v libx264 -tune zerolatency \
    -b:v:0 2000k -s:v:0 1280x720 -profile:v:0 high \
    -b:v:1 1500k -s:v:1 640x340  -profile:v:1 main \
    -b:v:2 500k -s:v:2 320x170  -profile:v:2 baseline \
    -bf 1 \
    -keyint_min 24 -g 24 -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" \
    -hls_playlist 1 -seg_duration 1 -streaming 1  -strict experimental -lhls 1 -remove_at_exit 1 \
    -f dash manifest.mpd



  



  The kind of HLS manifest I obtained for a specific resolution :

  



  #EXTM3U
#EXT-X-VERSION:6
#EXT-X-TARGETDURATION:1
#EXT-X-MEDIA-SEQUENCE:8
#EXT-X-MAP:URI="init-stream0.mp4"
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:56.966+0900
chunk-stream0-00008.mp4
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:57.964+0900
chunk-stream0-00009.mp4
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:58.963+0900
chunk-stream0-00010.mp4
#EXTINF:0.998458,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:13:59.961+0900
chunk-stream0-00011.mp4
#EXTINF:1.021678,
#EXT-X-PROGRAM-DATE-TIME:2019-06-21T18:14:00.960+0900
chunk-stream0-00012.mp4
...



  



  As you can see the #EXT-X-PREFETCH tag is missing.

  



  Any help would be highly appreciated.

  



  Edit

  



  I also compiled FFmpeg from its master branch by doing the following :

  



  nasm

  



  sudo apt-get install nasm mingw-w64


  



  Codecs

  



  sudo apt-get install libx265-dev libnuma-dev libx264-dev libvpx-dev libfdk-aac-dev libmp3lame-dev libopus-dev


  



  FFmpeg

  



  mkdir lhls
cd lhls 
git init 
git clone https://github.com/FFmpeg/FFmpeg.git
cd FFmpeg 
git checkout master


  



  AOM (inside FFmpeg dir)

  



  git -C aom pull 2> /dev/null || git clone --depth 1 https://aomedia.googlesource.com/aom && \
mkdir -p aom_build && \
cd aom_build && \
PATH="$HOME/bin:$PATH" cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$HOME/ffmpeg_build" -DENABLE_SHARED=off -DENABLE_NASM=on ../aom && \
PATH="$HOME/bin:$PATH" make && \
make install
cd..


  



  Compiling

  



  PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
  --prefix="$HOME/ffmpeg_build" \
  --pkg-config-flags="--static" \
  --extra-cflags="-I$HOME/ffmpeg_build/include" \
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
  --extra-libs="-lpthread -lm" \
  --bindir="$HOME/bin" \
  --enable-gpl \
  --enable-libaom \
  --enable-libass \
  --enable-libfdk-aac \
  --enable-libfreetype \
  --enable-libmp3lame \
  --enable-libopus \
  --enable-libvorbis \
  --enable-libvpx \
  --enable-libx264 \
  --enable-libx265 \
  --enable-nonfree && \
PATH="$HOME/bin:$PATH" make 


  



  Unfortunately, the #EXT-X-PREFETCH is still missing in the HLS Manifest.

  



  I also tried nightly builds from https://ffmpeg.zeranoe.com/builds/ , same result.

  



  Any help would be highly appreciated.

  



  EDIT 2 :resolved

  



  Thanks to @aergistal and @Gyan , the #EXT-X-PREFETCH tag is now present in my HLS manifest.

  



  Here the FFMPEG command I am using :

  



  ./ffmpeg -re -i ~/videos/BigBuckBunny.mp4 -loglevel debug \
  -map 0 -map 0 -map 0 -c:a aac -c:v libx264 -tune zerolatency \
  -b:v:0 2000k -s:v:0 1280x720 -profile:v:0 high -b:v:1 1500k -s:v:1 640x340  -profile:v:1 main -b:v:2 500k -s:v:2 320x170  -profile:v:2 baseline -bf 1 \
 -keyint_min 24 -g 24 -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" -hls_playlist 1 -seg_duration 3 -streaming 1 \
 -strict experimental -lhls 1 -remove_at_exit 0 -master_m3u8_publish_rate 3 \
 -f dash -method PUT -http_persistent 1  https://example.com/manifest.mpd


  



  Apparently the mime types are not passed to the server & FFmpeg seems to ignore the -headers option.

  


• Trying to use ffmpeg to create slideshow from ISO-8601 named pictures. Getting output with no playable streams

  19 juin 2019, par Robert Ellegate

  I’m trying to create a slideshow of images that are irregular in dimension/orientation but all named with the same ISO-8601 date format.

  I’ve normalized the filenames so they are all YYYYMMDD.jpg. I have tried using the globular pattern type for ffmpeg and various methods for inputting the files, including piping the concatenation of the files into ffmpeg.

  Here are the images I’m trying to use :

  $ ls *.jpg | xargs -n1 file
  
  20190411.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=upper-left, width=0], baseline, precision 8, 10128x3984, components 3
  
  20190417.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10176x3952, components 3
  
  20190424.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=upper-left, width=0], baseline, precision 8, 12128x3840, components 3
  
  20190429.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=upper-left, width=0], baseline, precision 8, 11104x3888, components 3
  
  20190430.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10992x3920, components 3
  
  20190501.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10528x3936, components 3
  
  20190502.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10992x3792, components 3
  
  20190508.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 11008x3808, components 3
  
  20190515.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10416x3760, components 3
  
  20190516.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10928x3760, components 3
  
  20190517.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10720x3840, components 3
  
  20190522.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6552x1688, components 3
  
  20190523.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6572x1700, components 3
  
  20190524.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6468x1659, components 3
  
  20190528.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 5424x1644, components 3
  
  20190529.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=7, model=Pixel 2 XL, height=0, manufacturer=Google, orientation=[*0*], datetime=2019:05:29 16:38:01, width=0]
  
  20190531.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6584x1693, components 3
  
  20190603.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6536x1690, components 3
  
  20190604.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 5748x1618, components 3
  
  20190606.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6196x1690, components 3
  
  20190607.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6112x1674, components 3
  
  20190610.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6440x1670, components 3
  
  20190611.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6312x1694, components 3
  
  20190612.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6176x1689, components 3

  And these are the various ffmpeg commands I’ve tried using :

  cat *.jpg | ffmpeg -framerate 1/5 -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4

  cat *.jpg | ffmpeg -f image2pipe -i - output.mkv

  ffmpeg -framerate 1/5 -pattern_type glob -i '*.jpg' out.mp4

  ffmpeg -framerate 1/5 -pattern_type glob -i '*.jpg' -c:v libx264 -vf fps=25 -pix_fmt yuv420p out.mp4

  I’m trying to create a video that shows each image for 5 seconds in order, but I’m getting a mp4 video file with no playable streams.