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• How to make `mktime` format with milliseconds ?

  20 septembre 2019, par Mantas Kildišis

  I need make 24 frames per second with PHP ffmpeg. This is current format of

  $t = mktime(0, 0, 0, 1, 1, 98);

  Later I use this function

  exec("/usr/local/bin/ffmpeg -ss " . date("H:i:s", $t) . " -i {$file} -f mjpeg -vframes 1 -s {$size} {$tmpfile}");

  In date("H:i:s", $t) I need make date("H:i:s.milliseconds", $t). This is not working date("H:i:s.u", $t) because of mktime format (hours, minutes, seconds, day. month, years) I guess.

  So, is it possible to add milliseconds to mktime ?

• how to solve ffmpeg video merging complain about parameters mismatching

  22 septembre 2019, par mohammad rostami siahgeli

  I’m trying to concatenate an intro video to a main video. Here’s my command :

  ffmpeg -i C:\Temp\intro.mp4 -i C:\Temp\main.mp4 -filter_complex "[0:v:0][0:a:0][1:v:0][1:a:0]concat=n=2:v=1:a=1[outv][outa]" -map "[outv]" -map "[outa]" C:\Temp\output.mp4

  When I run this command in cmd, I get the following error :

  ffmpeg version N-95004-g2f87c9f646 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.2.1 (GCC) 20190918
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 35.100 / 56. 35.100
  
    libavcodec     58. 58.101 / 58. 58.101
  
    libavformat    58. 33.100 / 58. 33.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.102 /  7. 58.102
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\intro.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2019-09-21T09:23:34.000000Z
  
    Duration: 00:00:07.32, start: 0.000000, bitrate: 706 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 960x540, 323 kb/s, 15 fps, 15 tbr, 30k tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : ?Mainconcept Video Media Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\main.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:00:08.78, start: 0.000000, bitrate: 499 kb/s
  
      Stream #1:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x640 [SAR 1:1 DAR 1:1], 430 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 64 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 (h264) -> concat:in0:v0
  
    Stream #0:1 (aac) -> concat:in0:a0
  
    Stream #1:0 (h264) -> concat:in1:v0
  
    Stream #1:1 (aac) -> concat:in1:a0
  
    concat:out:v0 -> Stream #0:0 (libx264)
  
    concat:out:a0 -> Stream #0:1 (aac)
  
  Press [q] to stop, [?] for help
  
  [Parsed_concat_0 @ 0000018168eedec0] Input link in0:v0 parameters (size 640x640, SAR 1:1) do not match the corresponding output link in0:v0 parameters (960x540, SAR 1:1)
  
  [Parsed_concat_0 @ 0000018168eedec0] Failed to configure output pad on Parsed_concat_0
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Invalid argument
  
  Error while processing the decoded data for stream #1:0
  
  Conversion failed!

  I’m not a video ninja. I know parameters are different, but I have no idea after hours of search on how to solve this. A lot of online video services concatenate these two videos and give me a reasonable result. They have a GUI though. I need to do it in code, so that I can automate it.

  How can I solve these errors ?

  Update : This is the second error :

  ffmpeg version N-95004-g2f87c9f646 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.2.1 (GCC) 20190918
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 35.100 / 56. 35.100
  
    libavcodec     58. 58.101 / 58. 58.101
  
    libavformat    58. 33.100 / 58. 33.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.102 /  7. 58.102
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\intro.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2019-09-21T09:23:34.000000Z
  
    Duration: 00:00:07.32, start: 0.000000, bitrate: 706 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 960x540, 323 kb/s, 15 fps, 15 tbr, 30k tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : ?Mainconcept Video Media Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\main.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:00:08.78, start: 0.000000, bitrate: 499 kb/s
  
      Stream #1:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x640 [SAR 1:1 DAR 1:1], 430 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 64 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  File 'C:\Temp\output.mp4' already exists. Overwrite ? [y/N] Y
  
  Stream mapping:
  
    Stream #0:0 (h264) -> scale
  
    Stream #0:1 (aac) -> concat:in0:a0
  
    Stream #1:0 (h264) -> concat:in1:v0
  
    Stream #1:1 (aac) -> concat:in1:a0
  
    concat:out:v0 -> Stream #0:0 (libx264)
  
    concat:out:a0 -> Stream #0:1 (aac)
  
  Press [q] to stop, [?] for help
  
  [mp4 @ 000002f17869d7c0] Frame rate very high for a muxer not efficiently supporting it.
  
  Please consider specifying a lower framerate, a different muxer or -vsync 2
  
  [libx264 @ 000002f178acfec0] using SAR=1/1
  
  [libx264 @ 000002f178acfec0] MB rate (1600000000) > level limit (16711680)
  
  [libx264 @ 000002f178acfec0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000002f178acfec0] profile High, level 6.2, 4:2:0, 8-bit
  
  [libx264 @ 000002f178acfec0] 264 - core 158 r2984 3759fcb - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  More than 1000 frames duplicated
  
  Too many packets buffered for output stream 0:0.
  
  [libx264 @ 000002f178acfec0] frame I:1     Avg QP:16.45  size:  4679
  
  [libx264 @ 000002f178acfec0] frame P:32    Avg QP:14.16  size:    33
  
  [libx264 @ 000002f178acfec0] frame B:96    Avg QP:17.67  size:    30
  
  [libx264 @ 000002f178acfec0] consecutive B-frames:  0.8%  0.0%  0.0% 99.2%
  
  [libx264 @ 000002f178acfec0] mb I  I16..4: 58.1% 34.8%  7.1%
  
  [libx264 @ 000002f178acfec0] mb P  I16..4:  0.1%  0.0%  0.0%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip:99.9%
  
  [libx264 @ 000002f178acfec0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.8%  0.0%  0.0%  direct: 0.0%  skip:99.2%  L0: 0.0% L1:100.0% BI: 0.0%
  
  [libx264 @ 000002f178acfec0] 8x8 transform intra:33.8%
  
  [libx264 @ 000002f178acfec0] coded y,uvDC,uvAC intra: 4.6% 8.2% 7.3% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 000002f178acfec0] i16 v,h,dc,p: 74% 22%  5%  0%
  
  [libx264 @ 000002f178acfec0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  1% 16% 83%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 000002f178acfec0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 17% 26%  7%  5%  5%  5%  6%  5%
  
  [libx264 @ 000002f178acfec0] i8c dc,h,v,p: 93%  3%  3%  1%
  
  [libx264 @ 000002f178acfec0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000002f178acfec0] ref P L0: 62.5% 37.5%
  
  [libx264 @ 000002f178acfec0] ref B L1: 99.8%  0.2%
  
  [libx264 @ 000002f178acfec0] kb/s:535069.75
  
  Conversion failed!

• how to make ffmpeg process large files faster ?

  12 octobre 2019, par Hakim Douib

  I am using ffmpeg to view video for dash player. But the videos used are more than 1GB, and the server has
  60 GB of RAM
  Ten cores

  The server takes more than 50 hours to process a video.
  The method I use is by separating each operation thread to make it faster ,
  and the files in the end have size between 2 to 5 GB

  dash params variable

  VP9_DASH_PARAMS="-tile-columns 4 -frame-parallel 1"

  cmd :

  ffmpeg  -i  vid_origenal.mp4 -c:v libx265  -s 1920x1080 -b:v 3000k -keyint_min 150 -g 150 ${VP9_DASH_PARAMS} -an -f webm -dash 1  1080.webm >/dev/null 2>&1 &

  I use this for all qualities

  thanks