Recherche avancée

Médias (1)

Mot : - Tags -/iphone

Autres articles (47)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • (Dés)Activation de fonctionnalités (plugins)

    18 février 2011, par

    Pour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
    SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
    Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
    MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...)

  • Les statuts des instances de mutualisation

    13 mars 2010, par

    Pour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
    Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...)

Sur d’autres sites (9237)

  • ffmpeg concatenate videos with audio not synched

    14 février 2016, par dmarcos89

    i am trying to concatenate 3 mp4 files into 1.
    This is the ffmpeg command im making :

    shell_exec('ffmpeg -f concat -i '.$random.'.txt -c:v libx264 -preset ultrafast -crf 30 -c:a copy '.$uploadfolder.$random.'.mp4 2>&1');

    The 1st and 3rd files are entry and end graphic scenes, which have the above information :

    pinicial.mp4

    ffprobe version N-76417-gee20354 Copyright (c) 2007-2015 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
configuration: --prefix=/home/dmarcos89/ffmpeg_build --extra-cflags=-I/home/dmarcos89/ffmpeg_build/include --extra-ldflags=-L/home/dmarcos89/ffmpeg_build/lib --bindir=/usr/local/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
libavutil      55.  5.100 / 55.  5.100
    
libavcodec     57. 13.102 / 57. 13.102
    
libavformat    57. 13.100 / 57. 13.100
    
libavdevice    57.  0.100 / 57.  0.100
    
libavfilter     6. 14.101 /  6. 14.101
    
libswscale      4.  0.100 /  4.  0.100
    
libswresample   2.  0.100 /  2.  0.100
    
libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://filtremoscolombia.com/test/videos/placas/pinicio.mp4':
    
Metadata:
    
major_brand     : isom
    
minor_version   : 512
    
compatible_brands: isomiso2avc1mp41
    
encoder         : Lavf57.13.100
    
Duration: 00:00:03.14, start: 0.021333, bitrate: 413 kb/s
    
Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 367 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
Metadata:
    
handler_name    : VideoHandler
    
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 43 kb/s (default)
    
Metadata:
    
handler_name    : SoundHandler

    pfinal.mp4

    ffprobe version N-76417-gee20354 Copyright (c) 2007-2015 the FFmpeg developers
    
  built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --prefix=/home/dmarcos89/ffmpeg_build --extra-cflags=-I/home/dmarcos89/ffmpeg_build/include --extra-ldflags=-L/home/dmarcos89/ffmpeg_build/lib --bindir=/usr/local/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
  libavutil      55.  5.100 / 55.  5.100
    
  libavcodec     57. 13.102 / 57. 13.102
    
  libavformat    57. 13.100 / 57. 13.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 14.101 /  6. 14.101
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://filtremoscolombia.com/test/videos/placas/pfinal.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.13.100
    
  Duration: 00:00:03.99, start: 0.021333, bitrate: 612 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 576 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 39 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    The "middle" one :

    ffprobe version N-76417-gee20354 Copyright (c) 2007-2015 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
configuration: --prefix=/home/dmarcos89/ffmpeg_build --extra-cflags=-I/home/dmarcos89/ffmpeg_build/include --extra-ldflags=-L/home/dmarcos89/ffmpeg_build/lib --bindir=/usr/local/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
libavutil      55.  5.100 / 55.  5.100
    
libavcodec     57. 13.102 / 57. 13.102
    
libavformat    57. 13.100 / 57. 13.100
    
libavdevice    57.  0.100 / 57.  0.100
    
libavfilter     6. 14.101 /  6. 14.101
    
libswscale      4.  0.100 /  4.  0.100
    
libswresample   2.  0.100 /  2.  0.100
    
libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://filtremoscolombia.com/test/upload/videos/vC6RvCf4pn.mp4':
    
Metadata:
    
major_brand     : isom
    
minor_version   : 512
    
compatible_brands: isomiso2avc1mp41
    
encoder         : Lavf57.13.100
    
Duration: 00:00:16.90, start: 0.000000, bitrate: 1185 kb/s
    
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x352 [SAR 1:1 DAR 20:11], 733 kb/s, 29.96 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
Metadata:
    
handler_name    : VideoHandler
    
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, 5.1, fltp, 447 kb/s (default)
    
Metadata:
    
handler_name    : SoundHandler

    And the result of this is the above :

    ffprobe version N-76417-gee20354 Copyright (c) 2007-2015 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
configuration: --prefix=/home/dmarcos89/ffmpeg_build --extra-cflags=-I/home/dmarcos89/ffmpeg_build/include --extra-ldflags=-L/home/dmarcos89/ffmpeg_build/lib --bindir=/usr/local/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
libavutil      55.  5.100 / 55.  5.100
    
libavcodec     57. 13.102 / 57. 13.102
    
libavformat    57. 13.100 / 57. 13.100
    
libavdevice    57.  0.100 / 57.  0.100
    
libavfilter     6. 14.101 /  6. 14.101
    
libswscale      4.  0.100 /  4.  0.100
    
libswresample   2.  0.100 /  2.  0.100
    
libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://filtremoscolombia.com/test/upload/videos/lYF00bMR2p.mp4':
    
Metadata:
    
major_brand     : isom
    
minor_version   : 512
    
compatible_brands: isomiso2avc1mp41
    
encoder         : Lavf57.13.100
    
Duration: 00:00:24.05, start: 0.000000, bitrate: 2121 kb/s
    
Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1793 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
Metadata:
    
handler_name    : VideoHandler
    
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 327 kb/s (default)
    
Metadata:
    
handler_name    : SoundHandler

    This is the video itself : http://filtremoscolombia.com/test/upload/videos/lYF00bMR2p.mp4

    The audio is not well synched and also audio is faster than the original file...
    Any help would be great

  • ffmpeg image concat file with different file extensions

    4 juillet 2018, par Rich

    I’ve been working with ffmpeg and I have got it to work perfectly quite a few times, but as of recent I am running into an issue where all the images from my text file arent used.

    My text file looks like -

    ffconcat version 1.0
    
file 'gallery-house-77-west-55th-street-01.jpg'
    
duration 4.44
    
file 'img03.jpg'
    
duration 4.44
    
file 'inside.png'
    
duration 4.44
    
file 'placeholder.png'

    (amount of files, file names and extensions will always vary)

    And I’ve tried several combinations but as of now my ffmpeg function looks like —

    ffmpeg -i audio.mp3 -safe 0 -f concat -i paths.txt -c:a copy -c:v libx264 \
    
-vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2,fps=25,format=yuv420p" -vsync vfr -movflags +faststart -y output.mp4 2>&1');

    When trying to run it, the video seems to convert but has various weird behaviors - sometimes only the middle file(image) in the list is shown or the first 2 only are shown/rendered.

    The audio is playing correctly though.

    I’ve tried setting the framerate for the input and I also tried setting it for the output but it leads to more strange behavior.

    This is what is echoed when running my above ffmpeg command -

     libavutil      56. 15.100 / 56. 15.100
    
  libavcodec     58. 19.100 / 58. 19.100
    
  libavformat    58. 13.100 / 58. 13.100
    
  libavdevice    58.  4.100 / 58.  4.100
    
  libavfilter     7. 18.100 /  7. 18.100
    
  libswscale      5.  2.100 /  5.  2.100
    
  libswresample   3.  2.100 /  3.  2.100
    
  libpostproc    55.  2.100 / 55.  2.100
    
[mp3 @ 0xb46780] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from 'audio.mp3':
    
  Metadata:
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:19.98, start: 0.000000, bitrate: 48 kb/s
    
    Stream #0:0: Audio: mp3, 22050 Hz, mono, fltp, 48 kb/s
    
Input #1, concat, from 'paths.txt':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 754x424 [SAR 72:72 DAR 377:212], 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #1:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[swscaler @ 0xba25c0] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0xb710c0] using SAR=3393/3392
    
[libx264 @ 0xb710c0] using cpu capabilities: none!
    
[libx264 @ 0xb710c0] profile High, level 3.1
    
[libx264 @ 0xb710c0] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=22 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'output.mp4':
    
  Metadata:
    
    encoder         : Lavf58.13.100
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 3393:3392 DAR 377:212], q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc58.19.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: mp3 (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 48 kb/s
    
[swscaler @ 0xb93140] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 0xb93140] Warning: data is not aligned! This can lead to a speed loss
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (cd)
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (c8)
    
[mjpeg @ 0xb6e200] Found EOI before any SOF, ignoring
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (c7)
    
Error while decoding stream #1:0: Invalid data found when processing input
    
[mjpeg @ 0xb6e200] invalid id 94
    
Error while decoding stream #1:0: Invalid data found when processing input
    
[mp4 @ 0xb6f8c0] Starting second pass: moving the moov atom to the beginning of the file
    
frame=    1 fps=0.0 q=28.0 Lsize=     179kB time=00:00:19.95 bitrate=  73.6kbits/s speed=44.1x    
    
video:58kB audio:117kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.446521%
    
[libx264 @ 0xb710c0] frame I:1     Avg QP:28.86  size: 58683
    
[libx264 @ 0xb710c0] mb I  I16..4: 21.2% 59.8% 19.0%
    
[libx264 @ 0xb710c0] 8x8 transform intra:59.8%
    
[libx264 @ 0xb710c0] coded y,uvDC,uvAC intra: 50.5% 65.2% 31.6%
    
[libx264 @ 0xb710c0] i16 v,h,dc,p: 10% 60%  3% 28%
    
[libx264 @ 0xb710c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 27% 26%  4%  4%  4%  6%  4%  7%
    
[libx264 @ 0xb710c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 33% 10%  5%  6%  5%  8%  5%  7%
    
[libx264 @ 0xb710c0] i8c dc,h,v,p: 47% 34% 11%  8%
    
[libx264 @ 0xb710c0] kb/s:11736.60

    Any ideas whats causing the image sequence to fail ?

    EDIT

    After some more debugging I think it may be related to the fact that all the files dont have the same extension. How can I make it so that it doesn’t have to be that way or is that already a default setting and the issue is else where ?

    EDIT 2

    I can get it to work when all the image extensions are the same but when it gets to png or any other image extension it renders the movie but the movie stops (incomplete) when it gets to that frame. This happens when I -
    1. place all the jpgs before the png
    2. run the following command ----

    ffmpeg -safe 0 -f concat -i paths.txt -c:v libx264 \
    
-vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2" -pix_fmt yuv420p -movflags +faststart -y output.mp4 2>&1

    So my last guess may be correct and it’s because I am mixing multiple image extensions in my ffmpeg command.

    How can I correct it so that it allows a mix of any image files ?

  • What ffmpeg settings to ensure 0 duplicate frames and 0 dropped frames when capturing to mpeg-2 program stream using ffmpeg/avfoundation on Mac ?

    16 février 2017, par aerodavo

    I’m trying to capture to a DVD compliant mpeg-2 file (ffmpeg : -target ntsc-dvd) from the HDMI output of a camcorder into a Magewell HDMI to USB 3.0 box into my Late 2012 15" non-retina MacBook Pro (quad core 2.3, 16gb ram, ssd), using ffmpeg/avfoundation.

    I’ve tried everything I can think of, or find online. I’m still getting duplicate and dropped frames, which either leads to audio/video sync issues, or audio dropouts, especially for longer recordings. I need this to be stable for recordings of up to 2.5 hours. This is the Terminal output for a 1.5 hour recording :

    Lapaki:~ Lapaki$ /Users/Lapaki/Desktop/ffmpeg -f avfoundation -video_size 960x540 -pixel_format uyvy422 -framerate ntsc -i "XI:XI" -vf crop=iw-240:ih:120:0 -target ntsc-dvd -aspect 4:3 -q:v 3 -ab 256k /Users/Lapaki/Desktop/FF\ Test/`date +%F`\ `date +%H_%M_%S`.mpg
    
ffmpeg version 3.2.3-tessus Copyright (c) 2000-2017 the FFmpeg developers
    
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    
  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
Input #0, avfoundation, from 'XI:XI':
    
  Duration: N/A, start: 610606.984208, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 960x540, 29.97 fps, 29.97 tbr, 1000k tbn, 1000k tbc
    
    Stream #0:1: Audio: pcm_f32le, 48000 Hz, stereo, flt, 3072 kb/s
    
Output #0, dvd, to '/Users/Lapaki/Desktop/FF Test/2017-02-15 17_46_28.mpg':
    
  Metadata:
    
    encoder         : Lavf57.56.101
    
    Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x480 [SAR 8:9 DAR 4:3], q=2-31, 6000 kb/s, 29.97 fps, 90k tbn, 29.97 tbc
    
    Metadata:
    
      encoder         : Lavc57.64.101 mpeg2video
    
    Side data:
    
      cpb: bitrate max/min/avg: 9000000/0/6000000 buffer size: 1835008 vbv_delay: -1
    
    Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
    
    Metadata:
    
      encoder         : Lavc57.64.101 ac3
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg2video (native))
    
  Stream #0:1 -> #0:1 (pcm_f32le (native) -> ac3 (native))
    
Press [q] to stop, [?] for help
    
[swscaler @ 0x7fd315892800] Warning: data is not aligned! This can lead to a speedloss
    
frame=   20 fps=0.0 q=3.0 size=     298kB time=00:00:00.65 bitrate=3721.4kbits/sframe=   35 fps= 35 q=3.0 size=     498kB time=00:00:01.13 bitrate=3591.2kbits/sframe=   50 fps= 33 q=3.0 size=     708kB time=00:00:01.64 bitrate=3519.4kbits/sframe=   65 fps= 32 q=3.0 size=     920kB time=00:00:02.16  
    
...
    
 bitrate=2721.7kbits/frame=162094 fps= 30 q=3.0 size= 1796936kB time=01:30:08.47 bitrate=2721.7kbits/frame=162109 fps= 30 q=3.0 size= 1797142kB time=01:30:08.98 bitrate=2721.8kbits/frame=162110 fps= 30 q=3.0 Lsize= 1797202kB time=01:30:09.01 bitrate=2721.9kbits/s dup=221 drop=0 speed=   1x    
    
video:1579050kB audio:168069kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.866632%

    I deleted the middle part (denoted by the "..."), which is just a lot more of the same accumulating information. By the end there are 221 duplicate frames, and for this one I didn’t get any dropped frames, but that happens every other time as well it seems.

    With this code, the audio seems to stay in pretty good sync, but I get little dropouts every 30 seconds to a minute or so. On this recording, there are dropouts at :

    00:00:43, 00:01:19, 00:01:47, 00:02:17, 00:03:18, ...

    I stopped listening there ; they happen at the end too, so I assume similarly spaced dropouts are happening throughout the file.

    Is there some secret ffmpeg code to ensure there are no dropped or duplicate frames when capturing from a live source to dvd compliant mpeg-2 files ?

    When I convert from pretty much any type of file to mpeg-2 files using -target ntsc-dvd, the speed is something like 10x on this machine, so it seems like it would have no problem keeping up with a live source, right ?

    I’ve also tried constant bit rate using -b:v 5000k -minrate 5000k -maxrate 5000k -bufsize 2500k, which also doesn’t prevent dropped/duplicate frames.

    I’ve tried separating out the audio and video inputs, which doesn’t solve it.

    I’ve tried using -vsync 0 on the video input, which does seem to solve the issue, because the output doesn’t report dups/drops, but the audio/video drift out of sync more and more, so that hasn’t worked either.

    Thanks so much for any help. I’ve been testing and testing and searching and searching for weeks...

Navigation