Recherche avancée

Sur d’autres sites (12935)

• FFMpeg build -lavdevice error on mac [on hold]

  5 novembre 2013, par Ilya Kharlamov

  I'm trying to build ffmpeg for kxmovie, but in the end I get the message here is :

  Build settings from command line:
  
      ARCHS = armv7s
  
      SDKROOT = iphoneos7.0
  
      SYMROOT = tmp/build
  
  
  
  === BUILD TARGET kxmovie OF PROJECT kxmovie WITH CONFIGURATION Release ===
  
  
  
  Check dependencies
  
  
  
  Libtool tmp/build/Release-iphoneos/libkxmovie.a normal armv7s
  
      cd /Volumes/Files/Kharlamov/Desktop/kxtorrent/submodules/kxmovie
  
      setenv IPHONEOS_DEPLOYMENT_TARGET 7.0
  
      setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin"
  
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static -arch_only armv7s -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -L/Volumes/Files/Kharlamov/Desktop/kxtorrent/submodules/kxmovie/tmp/build/Release-iphoneos -L/Volumes/Files/Kharlamov/Desktop/kxtorrent/submodules/kxmovie/libs -filelist /Volumes/Files/Kharlamov/Desktop/kxtorrent/submodules/kxmovie/tmp/build/kxmovie.build/Release-iphoneos/kxmovie.build/Objects-normal/armv7s/kxmovie.LinkFileList -ObjC -all_load -framework Foundation -framework CoreGraphics -lavcodec -lavdevice -lavformat -lavutil -lswresample -lswscale /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/libz.dylib -framework MediaPlayer -framework CoreAudio -framework AudioToolbox -framework Accelerate -framework QuartzCore -framework OpenGLES -o /Volumes/Files/Kharlamov/Desktop/kxtorrent/submodules/kxmovie/tmp/build/Release-iphoneos/libkxmovie.a
  
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: -dynamic not specified, -all_load invalid
  
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: -dynamic not specified the following flags are invalid: -ObjC 
  
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: can't locate file for: -lavdevice
  
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: file: -lavdevice is not an object file (not allowed in a library)
  
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: file: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/libz.dylib is a dynamic library, not added to the static library
  
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: file: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/libz.dylib is a dynamic library, not added to the static library
  
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: file: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/libz.dylib is a dynamic library, not added to the static library
  
  Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool failed with exit code 1
  
  
  
  ** BUILD FAILED **
  
  
  
  
  
  The following build commands failed:
  
      Libtool tmp/build/Release-iphoneos/libkxmovie.a normal armv7s
  
  (1 failure)
  
  rake aborted!
  
  ******** Build failed ********

  Help please, what is the problem and how to fix it ?
  P.S. I'm sorry for my english, I'm just learning :)

• FFMpeg WebVTT hls playlist out of sync [closed]

  29 mai 2023, par user1503606

  I am using the following commands with FFmpeg to encode a .mov video to hls and then also create a playlist for subtitles converting a .srt file to .vtt.

  



  // Creating hls playlist 

ffmpeg -hide_banner -y -i /Users/dave/mermaid.mov -c:a aac -ar 48000 -c:v h264 -profile:v baseline -avoid_negative_ts 0 -start_number 0 -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -f hls -vf scale=w=640:h=360:force_original_aspect_ratio=decrease -b:v 800k -maxrate 856k -bufsize 1200k -b:a 96k -hls_segment_filename /Users/dave/mermaid/360/360p_%03d.ts /Users/dave/dave/mermaid/360/360p.m3u8 
-c:a aac -ar 48000 -c:v h264 -profile:v baseline -avoid_negative_ts 0 -start_number 0 -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -f hls -vf scale=w=842:h=480:force_original_aspect_ratio=decrease -b:v 1400k -maxrate 1498k -bufsize 2100k -b:a 128k -hls_segment_filename /Users/dave/Desktop/mermaid/480/480p_%03d.ts /Users/dave/Desktop/mermaid/480/480p.m3u8 
-c:a aac -ar 48000 -c:v h264 -profile:v baseline -avoid_negative_ts 0 -start_number 0 -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -f hls -vf scale=w=1280:h=720:force_original_aspect_ratio=decrease -b:v 2800k -maxrate 2996k -bufsize 4200k -b:a 128k -hls_segment_filename /Users/dave/Desktop/mermaid/720/720p_%03d.ts /Users/dave/Desktop/mermaid/720/720p.m3u8 
-c:a aac -ar 48000 -c:v h264 -profile:v baseline -avoid_negative_ts 0 -start_number 0 -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -f hls -vf scale=w=1920:h=1080:force_original_aspect_ratio=decrease -b:v 5000k -maxrate 5350k -bufsize 7500k -b:a 192k -hls_segment_filename /Users/dave/Desktop/mermaid/1080/1080p_%03d.ts /Users/dave/Desktop/mermaid/1080/1080p.m3u8

// Creating subtitles

ffmpeg -i /Users/dave/mermaid.mov -i /Users/dave/little-mermaid.srt -c copy -c:s webvtt -start_number 0 -hls_time 10000000 -hls_flags single_file -hls_playlist_type vod -f hls -avoid_negative_ts 0 /Users/dave/mermaid/English/master.m3u8


  



  I am also doing this with AWS Media Convert the AWS conversion works fine the subtitles are perfectly in time but the FFMPEG version seems to be out of sync by about 1 second.

  



  Here are both files for to compare the exact same files are used for both.

  



  AWS Media Convert : https://d25hd5yfabpc2n.cloudfront.net/c0017bfe-3617-47a5-9525-86d69c73cf57/master.m3u8

  



  Local FFMPEG : https://d25hd5yfabpc2n.cloudfront.net/stackoverflow/master.m3u8

  



  The only thing I can see if I download both playlists is the AWS one has FRAME-RATE set.

  



  Here is an example of both videos playing the FFMEPG one is noticeably out of sync

  



  https://output.jsbin.com/xopohupivu/

  



  Another thing I have noticed is the AWS webvtt version has this at the top of the webvtt file.

  



  WEBVTT  #Elemental Media Engine(TM) 2.16.0.602399
X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:191970


  



  Not sure what is happening here can't find any information on how to implement this with FFMPEG.

  



  Thanks

  


• ffmpeg cannot open connection tcp ://a.rtmp.youtube.com

  13 mars 2024, par Hiji Deui

  I want to live stream using ffmpeg, when live on Facebook it runs normally, but when I live on YouTube there is an error, is there anything wrong with the command I entered ? even though the command is the same as live on Facebook, but only the RTMP link has been changed

  


  


  


  ffmpeg -re -i out.mp4 -c:v copy -c:a aac -ar 44100 -ab 128k -ac 2 -strict -2 -flags +global_header -bsf:a aac_adtstoasc -bufsize 3000k -f flv "rtmp://a.rtmp.youtube.com/live2/my-key-streaming"

  


  


  



  and the output is

  


  


  


  ffmpeg version N-55112-g7eb9cf593e-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  libavutil      56. 61.100 / 56. 61.100
  libavcodec     58.114.100 / 58.114.100
  libavformat    58. 64.100 / 58. 64.100
  libavdevice    58. 11.103 / 58. 11.103
  libavfilter     7. 91.100 /  7. 91.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2020-12-26T11:13:27.000000Z
    com.android.version: 10
  Duration: 00:00:03.27, start: 0.000000, bitrate: 21344 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown), 1920x1080, 20225 kb/s, SAR 1:1 DAR 16:9, 29.99 fps, 30.01 tbr, 90k tbn, 180k tbc (default)
    Metadata:
      rotate          : 90
      creation_time   : 2020-12-26T11:13:27.000000Z
      handler_name    : VideoHandle
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 128 kb/s (default)
    Metadata:
      creation_time   : 2020-12-26T11:13:27.000000Z
      handler_name    : SoundHandle
[tcp @ 0x58bf880] Connection to tcp://a.rtmp.youtube.com:1935 failed: Connection timed out
[rtmp @ 0x5893140] Cannot open connection tcp://a.rtmp.youtube.com:1935
rtmp://a.rtmp.youtube.com/live2/my-key: Connection timed out

  


  


  



  how to fix this, btw i use vps, sorry, my english so bad and this is the first time i asked on this website