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  • Video concatenation with ffmpeg gives incorrect duration

    12 mars 2019, par Sergey Mell

    I have a video file and I try to operate with it by means of fluent-ffmpeg. Here is an information which I get about this file with ffprobe. You can see that video duration is 6.014s.

    { streams:
      [ { index: 0,
          codec_name: 'h264',
          codec_long_name: 'H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10',
          profile: 'Constrained Baseline',
          codec_type: 'video',
          codec_time_base: '1001/60000',
          codec_tag_string: 'avc1',
          codec_tag: '0x31637661',
          width: 376,
          height: 668,
          coded_width: 376,
          coded_height: 668,
          has_b_frames: 0,
          sample_aspect_ratio: '0:1',
          display_aspect_ratio: '0:1',
          pix_fmt: 'yuv420p',
          level: 30,
          color_range: 'N/A',
          color_space: 'unknown',
          color_transfer: 'unknown',
          color_primaries: 'unknown',
          chroma_location: 'left',
          field_order: 'unknown',
          timecode: 'N/A',
          refs: 1,
          is_avc: 'true',
          nal_length_size: 4,
          id: 'N/A',
          r_frame_rate: '30000/1001',
          avg_frame_rate: '30000/1001',
          time_base: '1/30000',
          start_pts: 0,
          start_time: 0,
          duration_ts: 178200,
          duration: 5.94,
          bit_rate: 1161187,
          max_bit_rate: 'N/A',
          bits_per_raw_sample: 8,
          nb_frames: 178,
          nb_read_frames: 'N/A',
          nb_read_packets: 'N/A',
          tags: [Object],
          disposition: [Object] },
        { index: 1,
          codec_name: 'aac',
          codec_long_name: 'AAC (Advanced Audio Coding)',
          profile: 'LC',
          codec_type: 'audio',
          codec_time_base: '1/44100',
          codec_tag_string: 'mp4a',
          codec_tag: '0x6134706d',
          sample_fmt: 'fltp',
          sample_rate: 44100,
          channels: 1,
          channel_layout: 'mono',
          bits_per_sample: 0,
          id: 'N/A',
          r_frame_rate: '0/0',
          avg_frame_rate: '0/0',
          time_base: '1/44100',
          start_pts: 0,
          start_time: 0,
          duration_ts: 264159,
          duration: 5.99,
          bit_rate: 70594,
          max_bit_rate: 70594,
          bits_per_raw_sample: 'N/A',
          nb_frames: 259,
          nb_read_frames: 'N/A',
          nb_read_packets: 'N/A',
          tags: [Object],
          disposition: [Object] } ],
     format:
      { filename: '/Users/sergey/Desktop/vid1.mp4',
        nb_streams: 2,
        nb_programs: 0,
        format_name: 'mov,mp4,m4a,3gp,3g2,mj2',
        format_long_name: 'QuickTime / MOV',
        start_time: 0,
        duration: 6.014,
        size: 921490,
        bit_rate: 1225793,
        probe_score: 100,
        tags:
         { major_brand: 'isom',
           minor_version: '512',
           compatible_brands: 'isomiso2avc1mp41',
           encoder: 'Lavf57.25.100' } },
     chapters: [] }

    However, if I concatenate two such files into a single one :

    ffmpeg -r 30000/1001 -i /Users/sergey/Desktop/vid1.mp4 -r 30000/1001 -i /Users/sergey/Desktop/vid1.mp4 -y -filter_complex concat=n=2:v=1:a=1 -r 30000/1001 -video_track_timescale 30k /var/folders/8z/5zzmwz4d6mnc2bwfb_1h8jbw0000gn/T/1552213381581.mp4

    the duration of result is 12.005 instead of 12.028 expected :

    { streams:
      [ { index: 0,
          codec_name: 'h264',
          codec_long_name: 'H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10',
          profile: 'High',
          codec_type: 'video',
          codec_time_base: '1001/60000',
          codec_tag_string: 'avc1',
          codec_tag: '0x31637661',
          width: 376,
          height: 668,
          coded_width: 376,
          coded_height: 668,
          has_b_frames: 2,
          sample_aspect_ratio: '0:1',
          display_aspect_ratio: '0:1',
          pix_fmt: 'yuv420p',
          level: 30,
          color_range: 'N/A',
          color_space: 'unknown',
          color_transfer: 'unknown',
          color_primaries: 'unknown',
          chroma_location: 'left',
          field_order: 'unknown',
          timecode: 'N/A',
          refs: 1,
          is_avc: 'true',
          nal_length_size: 4,
          id: 'N/A',
          r_frame_rate: '30000/1001',
          avg_frame_rate: '30000/1001',
          time_base: '1/30000',
          start_pts: 0,
          start_time: 0,
          duration_ts: 358380,
          duration: 11.946,
          bit_rate: 859761,
          max_bit_rate: 'N/A',
          bits_per_raw_sample: 8,
          nb_frames: 358,
          nb_read_frames: 'N/A',
          nb_read_packets: 'N/A',
          tags: [Object],
          disposition: [Object] },
        { index: 1,
          codec_name: 'aac',
          codec_long_name: 'AAC (Advanced Audio Coding)',
          profile: 'LC',
          codec_type: 'audio',
          codec_time_base: '1/44100',
          codec_tag_string: 'mp4a',
          codec_tag: '0x6134706d',
          sample_fmt: 'fltp',
          sample_rate: 44100,
          channels: 1,
          channel_layout: 'mono',
          bits_per_sample: 0,
          id: 'N/A',
          r_frame_rate: '0/0',
          avg_frame_rate: '0/0',
          time_base: '1/44100',
          start_pts: 0,
          start_time: 0,
          duration_ts: 528362,
          duration: 11.980998,
          bit_rate: 70319,
          max_bit_rate: 70319,
          bits_per_raw_sample: 'N/A',
          nb_frames: 517,
          nb_read_frames: 'N/A',
          nb_read_packets: 'N/A',
          tags: [Object],
          disposition: [Object] } ],
     format:
      { filename: '/var/folders/8z/5zzmwz4d6mnc2bwfb_1h8jbw0000gn/T/1552213381581.mp4',
        nb_streams: 2,
        nb_programs: 0,
        format_name: 'mov,mp4,m4a,3gp,3g2,mj2',
        format_long_name: 'QuickTime / MOV',
        start_time: 0,
        duration: 12.005,
        size: 1403350,
        bit_rate: 935177,
        probe_score: 100,
        tags:
         { major_brand: 'isom',
           minor_version: '512',
           compatible_brands: 'isomiso2avc1mp41',
           encoder: 'Lavf57.71.100' } },
     chapters: [] }

    I’ve already looked through this question but it seems doesn’t help as long as it is exactly the same file so all stats are the same.

    So, main questions are "Why result duration differs from sum of two files ?" and "How to fix it ?".

    Could anybody suggest some help ? Thanks in advance.

  • Why does this ffmpeg filter result in an "Invalid Size" error ?

    10 avril 2019, par pdoherty926

    Why do I see this error message :

    [Parsed_scale_0 @ 0x559a264c28a0] Invalid size ’if(gt(iw’

    [AVFilterGraph @ 0x559a268a19e0] Error initializing filter ’scale’

    with args ’if(gt(iw’ Error initializing complex filters.

    Invalid argument

    when trying to crop a video using ffmpeg and the following complex filter :

    ffmpeg -f mp4 -ss 01:24 \
     -i https://storage.googleapis.com/bucket/video.mp4 \
     -y \
     -filter_complex scale='if(gt(iw,ih),-1,616):if(gt(iw,ih),1440,-1)', crop=1440:616 \
     -an \
     -vcodec libx264 \
     -r 60 -pix_fmt yuv420p \
     -movflags faststart \
     -f mp4 \
     -t 1 \
     /tmp/asset.1554913197962.mp4

    In case it’s relevant, here’s the output of ffprobe :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://storage.googleapis.com/bucket/video.mp4':
     Metadata:
       major_brand     : isom
       minor_version   : 512
       compatible_brands: isomiso2avc1mp41
       encoder         : Lavf57.56.101
     Duration: 00:02:53.76, start: 0.000000, bitrate: 2910 kb/s
       Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2777 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
       Metadata:
         handler_name    : VideoHandler
       Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
       Metadata:
         handler_name    : SoundHandler
       "streams": [
           {
               "index": 0,
               "codec_name": "h264",
               "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
               "profile": "High",
               "codec_type": "video",
               "codec_time_base": "1001/60000",
               "codec_tag_string": "avc1",
               "codec_tag": "0x31637661",
               "width": 1920,
               "height": 1080,
               "coded_width": 1920,
               "coded_height": 1080,
               "has_b_frames": 1,
               "sample_aspect_ratio": "1:1",
               "display_aspect_ratio": "16:9",
               "pix_fmt": "yuv420p",
               "level": 40,
               "color_range": "tv",
               "color_space": "bt709",
               "color_transfer": "bt709",
               "color_primaries": "bt709",
               "chroma_location": "left",
               "refs": 1,
               "is_avc": "true",
               "nal_length_size": "4",
               "r_frame_rate": "30000/1001",
               "avg_frame_rate": "30000/1001",
               "time_base": "1/90000",
               "start_pts": 0,
               "start_time": "0.000000",
               "duration_ts": 15633630,
               "duration": "173.707000",
               "bit_rate": "2777254",
               "bits_per_raw_sample": "8",
               "nb_frames": "5206",
               "disposition": {
                   "default": 1,
                   "dub": 0,
                   "original": 0,
                   "comment": 0,
                   "lyrics": 0,
                   "karaoke": 0,
                   "forced": 0,
                   "hearing_impaired": 0,
                   "visual_impaired": 0,
                   "clean_effects": 0,
                   "attached_pic": 0,
                   "timed_thumbnails": 0
               },
               "tags": {
                   "language": "und",
                   "handler_name": "VideoHandler"
               }
           },
           {
               "index": 1,
               "codec_name": "aac",
               "codec_long_name": "AAC (Advanced Audio Coding)",
               "profile": "LC",
               "codec_type": "audio",
               "codec_time_base": "1/44100",
               "codec_tag_string": "mp4a",
               "codec_tag": "0x6134706d",
               "sample_fmt": "fltp",
               "sample_rate": "44100",
               "channels": 2,
               "channel_layout": "stereo",
               "bits_per_sample": 0,
               "r_frame_rate": "0/0",
               "avg_frame_rate": "0/0",
               "time_base": "1/44100",
               "start_pts": 0,
               "start_time": "0.000000",
               "duration_ts": 7662596,
               "duration": "173.755011",
               "bit_rate": "125588",
               "max_bit_rate": "125588",
               "nb_frames": "7483",
               "disposition": {
                   "default": 1,
                   "dub": 0,
                   "original": 0,
                   "comment": 0,
                   "lyrics": 0,
                   "karaoke": 0,
                   "forced": 0,
                   "hearing_impaired": 0,
                   "visual_impaired": 0,
                   "clean_effects": 0,
                   "attached_pic": 0,
                   "timed_thumbnails": 0
               },
               "tags": {
                   "language": "eng",
                   "handler_name": "SoundHandler"
               }
           }
       ],
       "format": {
           "filename": "https://storage.googleapis.com/bucket/video.mp4",
           "nb_streams": 2,
           "nb_programs": 0,
           "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
           "format_long_name": "QuickTime / MOV",
           "start_time": "0.000000",
           "duration": "173.755000",
           "size": "63209767",
           "bit_rate": "2910294",
           "probe_score": 100,
           "tags": {
               "major_brand": "isom",
               "minor_version": "512",
               "compatible_brands": "isomiso2avc1mp41",
               "encoder": "Lavf57.56.101"
           }
       }
    }
  • An error occured 'maybe incorrect parameters such as bit_rate, rate, width or height' when I encode my video

    17 mai 2019, par Crystal

    I always use this source code when I encode my videos. they are almost 1920x1080 videos.
    but An error occured when I tried to encode a 7680x3840 video.

       ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
       built with gcc 5.4.0 (GCC)
       configuration: --enable-gpl --enable-version3 --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
       libavutil      55. 34.100 / 55. 34.100
       libavcodec     57. 64.101 / 57. 64.101
       libavformat    57. 56.100 / 57. 56.100
       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
       [avisynth @ 03af8040] Stream #0: not enough frames to estimate rate; consider increasing probesize
       Guessed Channel Layout for Input Stream #0.1 : stereo
       Input #0, avisynth, from 'a.mp4.avs':
       Duration: 00:00:01.85, start: 0.000000, bitrate: 2 kb/s
       Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 7680x3840, 60 fps, 60 tbr, 60 tbn, 60 tbc
       Stream #0:1: Audio: pcm_f32le, 48000 Hz, stereo, flt, 3072 kb/s
       [libx264 @ 054c5c20] VBV maxrate specified, but no bufsize, ignored
       [libx264 @ 054c5c20] frame MB size (480x240) > level limit (8192)
       [libx264 @ 054c5c20] DPB size (4 frames, 460800 mbs) > level limit (0 frames, 32768 mbs)
       [libx264 @ 054c5c20] MB rate (6912000) > level limit (245760)
       [libx264 @ 054c5c20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
       x264 [error]: malloc of size 152432416 failed
       Stream mapping:
       Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
       Stream #0:1 -> #0:1 (pcm_f32le (native) -> aac (native))
       Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    there is a strange message.
    ’malloc of size 152432416 failed’
    I think this is memory problem but I have no idea to solve this problem.

    This is avs file

       PluginPath = "D:\Application\Frame_Doubling_Set_Drag_And_Drop\ffmpeg-Convert-TrueMotion-x86_Newer_Svpflow\_exe\"

       LoadPlugin(PluginPath + "ffms2.dll")
       LoadPlugin(PluginPath + "svpflow1.dll")
       LoadPlugin(PluginPath + "svpflow2.dll")
       LoadPlugin(PluginPath + "mvtools2.dll")

       Video=FFVideoSource("a.mp4", threads=8)
       Audio=FFAudioSource("a.mp4")
       Audiodub(Video, Audio)

       Import(PluginPath + "InterFrame2.avsi")

       InterFrame(GPU=true, Preset="Medium", FrameDouble=true, NewNum=60000, NewDen=1000, Cores=8)

    and this is batch file

       @echo off

       CD /D "%~dp1"
       cls

       set DestPath=%~dp1

       set Src0=%~nx1
       set Src1=%~n1

       set DestExt=.mp4

       set Dest0=%DestPath%\%Src1%-Cnv%DestExt%
       set Dest1=%DestPath%\%Src1%-Cnv-New%DestExt%

       set exe=%~dp0_exe\ffmpeg.exe
       set Opt1=-i
       set Opt2=-c:v libx264 -b:v 200000k -minrate 10k -maxrate 200000k -profile:v high -level 4.1 -pix_fmt yuv420p
       set Opt3=-c:a aac -ab 192k
       set Opt4=-f mp4

       If Not Exist "%Src0%" (echo. && echo  [ %Src0% ] Not Found. && echo. && pause && Goto End)

       If Exist "%Dest0%" set Dest0=%Dest1%

       "%exe%" %Opt1% "%Src0%" %Opt2% %Opt3% %Opt4% "%Dest0%"

       :End
       If Not Exist "%Dest0%" (echo. && pause)
       rem pause
       pause

    What’s my problem ?