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• High pitched audio or no audio at all when converting AVI video to MP4 with FFmpeg [closed]

  15 août 2023, par Karen S

  I'm pretty new to FFmpeg and I'm having trouble converting a video from AVI format to MP4. I'm trying to convert pcm_s16le to aac. No matter what audio stream I use, the resulting audio in the MP4 file is either very high pitched and choppy (stream 1) or the audio stream is silent (stream 2).

  


  The AVI video has two audio streams :

  


  Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Stream #0:2: Audio: pcm_s16le, 32000 Hz, stereo, s16, 1024 kb/s


  


  In VLC Media Player the video plays fine and it uses the second audio stream.

  


  When I run ffmpeg -i input.avi -vcodec libx264 -crf 27 output.mp4 in my terminal, the output audio in the MP4 file is very high pitched and choppy in VLC.
This is the codec information for the audio stream in VLC after the conversion :

  


  Codec: MPEG AAC Audio (mp4a)
Type: Audio
Channels: Stereo
Sample rate: 48000 Hz
Bits per sample: 32


  


  When I specify the audio stream and codec the resulting video is silent.

  


  ffmpeg -i input.avi -map 0:v:0 -vcodec libx264 -crf 29 -map 0:a:1 -acodec aac output.mp4


  


  This is the terminal output from FFmpeg :

  


  FILEPATH -i "input.avi" -map 0:v:0 -vcodec libx264 -crf 29 -map 0:a:1 -acodec aac "output.mp4"
ffmpeg version 2023-06-11-git-09621fd7d9-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      58. 13.100 / 58. 13.100
  libavcodec     60. 17.100 / 60. 17.100
  libavformat    60.  6.100 / 60.  6.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  8.101 /  9.  8.101
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
[avi @ 000002533665a400] Switching to NI mode, due to poor interleaving
Input #0, avi, from 'input.avi':
  Duration: 00:10:40.64, start: 0.000000, bitrate: 28852 kb/s
  Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 32:27 DAR 16:9], 25000 kb/s, SAR 8:9 DAR 4:3, 60k fps, 29.97 tbr, 60k tbn
  Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
  Stream #0:2: Audio: pcm_s16le, 32000 Hz, stereo, s16, 1024 kb/s
File 'output.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (dvvideo (native) -> h264 (libx264))
  Stream #0:2 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 00000253366702c0] using SAR=8/9
[libx264 @ 00000253366702c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 00000253366702c0] profile High 4:2:2, level 3.0, 4:2:2, 8-bit
[libx264 @ 00000253366702c0] 264 - core 164 r3107 a8b68eb - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - 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=12 lookahead_threads=2 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=29.0 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         : Lavf60.6.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv422p(tv, bottom coded first (swapped)), 720x480 [SAR 8:9 DAR 4:3], q=2-31, 29.97 fps, 30k tbn
    Metadata:
      encoder         : Lavc60.17.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 32000 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavc60.17.100 aac
[dvvideo @ 000002533879d780] Concealing bitstream errors.41 bitrate= 901.6kbits/s speed=2.01x
    Last message repeated 76 times
[dvvideo @ 000002533878f640] Concealing bitstream errors.43 bitrate= 925.1kbits/s speed=1.97x
    Last message repeated 19 times
[out#0/mp4 @ 00000253366770c0] video:72743kB audio:119kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.649282%
frame=19200 fps= 58 q=-1.0 Lsize=   73335kB time=00:10:40.61 bitrate= 937.8kbits/s speed=1.92x
[libx264 @ 00000253366702c0] frame I:99    Avg QP:28.84  size: 35252
[libx264 @ 00000253366702c0] frame P:4922  Avg QP:31.82  size:  9208
[libx264 @ 00000253366702c0] frame B:14179 Avg QP:36.03  size:  1811
[libx264 @ 00000253366702c0] consecutive B-frames:  1.2%  0.8%  1.1% 97.0%
[libx264 @ 00000253366702c0] mb I  I16..4: 13.7% 74.6% 11.7%
[libx264 @ 00000253366702c0] mb P  I16..4:  1.7%  6.7%  1.1%  P16..4: 38.6% 13.2%  9.3%  0.0%  0.0%    skip:29.3%
[libx264 @ 00000253366702c0] mb B  I16..4:  0.2%  0.5%  0.0%  B16..8: 37.3%  2.8%  0.7%  direct: 2.1%  skip:56.3%  L0:42.5% L1:52.2% BI: 5.3%
[libx264 @ 00000253366702c0] 8x8 transform intra:69.6% inter:71.7%
[libx264 @ 00000253366702c0] coded y,uvDC,uvAC intra: 65.4% 59.0% 8.7% inter: 12.9% 7.0% 0.1%
[libx264 @ 00000253366702c0] i16 v,h,dc,p: 12% 64%  7% 16%
[libx264 @ 00000253366702c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 11% 26% 26%  5%  6%  5%  8%  5%  8%
[libx264 @ 00000253366702c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  9% 48% 15%  4%  5%  4%  7%  3%  5%
[libx264 @ 00000253366702c0] i8c dc,h,v,p: 61% 19% 16%  4%
[libx264 @ 00000253366702c0] Weighted P-Frames: Y:3.5% UV:1.3%
[libx264 @ 00000253366702c0] ref P L0: 55.4% 15.5% 20.6%  8.2%  0.3%
[libx264 @ 00000253366702c0] ref B L0: 89.3%  8.2%  2.5%
[libx264 @ 00000253366702c0] ref B L1: 95.5%  4.5%
[libx264 @ 00000253366702c0] kb/s:930.17
[aac @ 00000253382c31c0] Qavg: 65536.000


  


  Could someone point me in the right direction please ? I've tried doing the conversion with Handbrake as well and the audio is still choppy.

  


• FFMPEG on AWS Lambda Only outputs half a second of video when converting video from mobile safari

  18 août 2023, par user1825257

  I am running FFMPEG on AWS Lambda using nodejs and fluent-ffmpeg. I am able to convert videos recorded on most devices / browsers, but when I attempt to convert videos recorded on Mobile Safari, the length of the output video is 1/2 a second regardless of the input length.

  


  My Typescript code is :

  


      import * as ffmpeg from &#x27;fluent-ffmpeg&#x27;;&#xA;    public static StandardizeVideoFormat(&#xA;      inputSignedUrl: string,&#xA;      filename: string,&#xA;    ): Promise<string> {&#xA;      const localFilePath = `/tmp/${Date.now()}_${filename}.mp4`;&#xA;    &#xA;      return new Promise((resolve, reject) => {&#xA;        ffmpeg(inputSignedUrl)&#xA;          .outputOptions([&#xA;            &#x27;-crf&#x27;,&#xA;            &#x27;18&#x27;,&#xA;            &#x27;-vcodec&#x27;,&#xA;            &#x27;libx264&#x27;,&#xA;            &#x27;-codec:a&#x27;,&#xA;            &#x27;aac&#x27;,&#xA;            &#x27;-preset&#x27;,&#xA;            &#x27;medium&#x27;,&#xA;          ])&#xA;          .output(localFilePath)&#xA;          .on(&#x27;start&#x27;, function (commandLine) {&#xA;            console.log(&#x27;Spawned Ffmpeg with command: &#x27; &#x2B; commandLine);&#xA;          })&#xA;          .on(&#x27;error&#x27;, function (err) {&#xA;            reject(err);&#xA;          })&#xA;          .on(&#x27;progress&#x27;, function (progress) {&#xA;            console.log(&#x27;progress&#x27;, progress);&#xA;          })&#xA;          .on(&#x27;end&#x27;, function () {&#xA;            resolve(localFilePath);&#xA;          })&#xA;          .run();&#xA;      });&#xA;    }&#xA;</string>

  


  Using FFprobe, The metadata of the input file is :

  


  {
  streams: [
    {
      index: 0,
      codec_name: 'h264',
      codec_long_name: 'H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10',
      profile: 'Baseline',
      codec_type: 'video',
      codec_tag_string: 'avc1',
      codec_tag: '0x31637661',
      width: 1920,
      height: 1080,
      coded_width: 1920,
      coded_height: 1080,
      closed_captions: 0,
      film_grain: 0,
      has_b_frames: 0,
      sample_aspect_ratio: 'N/A',
      display_aspect_ratio: 'N/A',
      pix_fmt: 'yuvj420p',
      level: 40,
      color_range: 'pc',
      color_space: 'unknown',
      color_transfer: 'unknown',
      color_primaries: 'unknown',
      chroma_location: 'left',
      field_order: 'progressive',
      refs: 1,
      is_avc: 'true',
      nal_length_size: 4,
      id: '0x1',
      r_frame_rate: '30000/1001',
      avg_frame_rate: '60000/1991',
      time_base: '1/600',
      start_pts: 26,
      start_time: 0.043333,
      duration_ts: 4008,
      duration: 6.68,
      bit_rate: 10175170,
      max_bit_rate: 'N/A',
      bits_per_raw_sample: 8,
      nb_frames: 'N/A',
      nb_read_frames: 'N/A',
      nb_read_packets: 'N/A',
      extradata_size: 31,
      side_data_type: 'Display Matrix',
      displaymatrix: '',
      rotation: '-90',
      tags: [Object],
      disposition: [Object]
    },
    {
      index: 1,
      codec_name: 'aac',
      codec_long_name: 'AAC (Advanced Audio Coding)',
      profile: 'LC',
      codec_type: 'audio',
      codec_tag_string: 'mp4a',
      codec_tag: '0x6134706d',
      sample_fmt: 'fltp',
      sample_rate: 48000,
      channels: 1,
      channel_layout: 'mono',
      bits_per_sample: 0,
      initial_padding: 0,
      id: '0x2',
      r_frame_rate: '0/0',
      avg_frame_rate: '0/0',
      time_base: '1/48000',
      start_pts: 0,
      start_time: 0,
      duration_ts: 319488,
      duration: 6.656,
      bit_rate: 181302,
      max_bit_rate: 'N/A',
      bits_per_raw_sample: 'N/A',
      nb_frames: 'N/A',
      nb_read_frames: 'N/A',
      nb_read_packets: 'N/A',
      extradata_size: 2,
      tags: [Object],
      disposition: [Object]
    }
  ],
  format: {
    filename: 'input.mp4',
    nb_streams: 2,
    nb_programs: 0,
    format_name: 'mov,mp4,m4a,3gp,3g2,mj2',
    format_long_name: 'QuickTime / MOV',
    start_time: 0,
    duration: 6.723333,
    size: 8651792,
    bit_rate: 10294646,
    probe_score: 100,
    tags: {
      major_brand: 'iso5',
      minor_version: '1',
      compatible_brands: 'isomiso5hlsf',
      creation_time: '2023-08-05T19:03:15.000000Z'
    }
  },
  chapters: []
}


  


  Any ideas on why the output of my command on this file always results in a 0.5 second long output ?

  


• How to resolve Electron ffmpeg error opening input file ?

  26 août 2023, par 3V1LXD

  I have an Electron app with ffmpeg.exe inside the project's bin folder. When i try to use ffmpeg to make a new video I get an error reading the input file.

  


  FFmpeg error: [in#0 @ 000002667f2ab9c0] Error opening input: No such file or directory

Error opening input file C:/Users/xxxx/Videos/Powder/2023.08.19%2017.30.37_Apex_Legends/Powder_2023.08.19%2021.00.48.mp4


  


  const ffmpeg = spawn(ffmpegPath, [
  '-i', videoFile,
  '-filter_complex', filterComplex,
  '-map', '[out]',
  '-c:v', 'libx264',
  '-crf', '18',
  '-preset', 'veryfast',
  '-y',
  path.join(outputDir, outputName)
]);

ffmpeg.stdout.on('data', (data) => {
  console.log(`FFmpeg output: ${data}`);
});

ffmpeg.stderr.on('data', (data) => {
  console.error(`FFmpeg error: ${data}`);
});

ffmpeg.on('close', (code) => {
  console.log(`FFmpeg process exited with code ${code}`);
  event.reply('ffmpeg-export-done'); // Notify the renderer process
});


  


  How can i resolve this path issue ?