Recherche avancée

Sur d’autres sites (10382)

• FFmpeg library : modified muxing sample for FLTP input and FLTP audio, loses audio

  21 janvier 2014, par taansari

  Based on muxing sample that comes with FFmpeg docs, I have modified it, from input format as S16 to FLTP (planar stereo), and outputting to webm format (stereo).

  Since input is now FLTP, I am filling two arrays, then encoding again to FLTP. There are no obvious errors given on screen, but the resulting webm video does not play any audio (just the video content). This is just proof of concept in understanding things ; here is an added (crude) function to fill up input FLTP stereo buffer :

  static void get_audio_frame_for_planar_stereo(int16_t **samples, int frame_size, int nb_channels)
  
  {
  
      int j, i, v[2];
  
      int16_t *q1 = (int16_t *) samples[0];
  
      int16_t *q2 = (int16_t *) samples[1];
  
  
  
      for (j = 0; j < frame_size; j++)
  
      {
  
          v[0] = (int)(sin(t) * 10000);
  
          v[1] = (int)(tan(t) * 10000);
  
          *q1++ = v[0];
  
          *q2++ = v[1];
  
          t     += tincr;
  
          tincr += tincr2;
  
      }
  
  }

  Which I am calling from inside write_audio_frame() function.

  Note also, wherever code reffered AV_SAMPLE_FMT_S16 as input, I have changed to AV_SAMPLE_FMT_FLTP.

  Whole workable source is here :

  https://gist.github.com/anonymous/05d1d7662e9feafc45a6

  When run with ffprobe.exe, with these instructions :

  ffprobe -show_packets output.webm >output.txt

  I see nothing out of ordinary, all pts/dts values appear to be in place :

  https://gist.github.com/anonymous/3ed0d6308700ab991704

  Could someone highlight cause of this mis-interpretation ?

  Thanks for your time...

  p.s. I am using Zeranoe FFmpeg Windows builds (32 bit), built on Jan 9 2014 22:04:35 with gcc 4.8.2.(GCC)

  Edit : Based on your guidance elsewhere, I tried the following :

      /* set options */
  
      //av_opt_set_int       (swr_ctx, "in_channel_count",   c->channels,       0);
  
      //av_opt_set_int       (swr_ctx, "in_sample_rate",     c->sample_rate,    0);
  
      //av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt",      AV_SAMPLE_FMT_FLTP, 0);
  
      //av_opt_set_int       (swr_ctx, "out_channel_count",  c->channels,       0);
  
      //av_opt_set_int       (swr_ctx, "out_sample_rate",    c->sample_rate,    0);
  
      //av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt",     c->sample_fmt,     0);
  
  
  
      av_opt_set_int(swr_ctx, "in_channel_layout",    AV_CH_LAYOUT_STEREO, 0);
  
      av_opt_set_int(swr_ctx, "in_sample_rate",       c->sample_rate, 0);
  
      av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt", AV_SAMPLE_FMT_FLTP, 0);
  
  
  
      av_opt_set_int(swr_ctx, "out_channel_layout",    AV_CH_LAYOUT_STEREO, 0);
  
      av_opt_set_int(swr_ctx, "out_sample_rate",       c->sample_rate, 0);
  
      av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt", AV_SAMPLE_FMT_FLTP, 0);

  And the revised function :

  static void get_audio_frame_for_planar_stereo(uint8_t **samples, int frame_size, int nb_channels)
  
  {
  
      int j, i;
  
      float v[2];
  
      float *q1 = (float *) samples[0];
  
      float *q2 = (float *) samples[1];
  
  
  
      for (j = 0; j < frame_size; j++) 
  
      {
  
          v[0] = (tan(t) * 1);
  
          v[1] = (sin(t) * 1);
  
          *q1++ = v[0];
  
          *q2++ = v[1];
  
          t     += tincr;
  
          tincr += tincr2;
  
      }
  
  }

  Now it appears to be working properly. I tried changing function parameters from uint8_t** to float**, as well as src_samples_data from uint8_t** to float**, but did not make any difference, in a view.

  Updated code : https://gist.github.com/anonymous/35371b2c106961029c3d

  Thanks for highlighting the place(s) that result in this behavior !

• Centos : TERM enivornment Variable Not Set

  21 janvier 2014, par Architact

  I am working on a mobile application which allows users to upload videos, upon upload the videos are converted to mp4 format, I am using a shell script for that purpose, the script was working fine on our last server but we switched our server and now it has stopped working, the log files of apache are printing.

  [Tue Jan 21 00:57:37.003944 2014] [:error] TERM environment variable not set.
  
  [Tue Jan 21 00:57:37.148531 2014] [:error] ./script.sh: line 3: ffmpeg: command not found
  
  [Tue Jan 21 00:57:37.148794 2014] [:error] script.sh: line 4: ffmpeg: command not found

  The content of script.sh are

  #!/bin/bash -p
  
  clear
  
  ffmpeg -i $filename -strict experimental -ar 22050 converted.mp4<br />
  
  ffmpeg -itsoffset -1 -i  converted.mp4 -vframes 25 -filter:v scale="min(500\, iw):-1"  thumbnail.png

  I am calling the script form php using

  shell_exec("script.sh 52567afa374c61381399290.mp4");

  Any help would be greatly appreciated.

  Thanks

• How to make that video module can generate readable files for the module JW Player ?

  4 janvier 2015, par Dvex

  I use Drupal 7.x with Video Module, Video Pressets for FFMPEG and JW Player.
  I install FFMPEG with this Guide : https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu in Ubuntu 14.04

  I’m using jQuery 1.8

  I downloaded the files that the JW Player module requires and renamed some files, as the guide tells me.

  I set the video module so you can use FFMPEG and established the necessary pressets (FLV, MP4 and WebM) for any browser (web and mobile).

  I changed the default settings of these pressets. I put check the option : Force one-pass Encoding. Because if not me error message :

  PHPVideoToolkit error: Execute error. It was not possible to encode "/var/www/html/sites/default/files/private/videos/original/reel para web en loop_2.mp4" as FFmpeg returned an error. Note, however the error was encountered on the second pass of the encoding process and the first pass appear to go fine. The error is with the video codec of the input file. FFmpeg reports the error to be "Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height".
  
  
  
  /usr/bin/ffmpeg -i '/var/www/html/sites/default/files/private/videos/original/reel para web en loop_2.mp4' -strict experimental -vcodec 'h264' -acodec 'aac' -vprofile 'baseline' -ac '2' -pass '1' -passlogfile '/tmp/1420389438-54a96c3eda9fc-multipass'  -y /tmp/1420389438-54a96c3eda8c1.mp4
  
  ffmpeg version 1.2.6-7:1.2.6-1~trusty1 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Apr 26 2014 18:52:58 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
    configuration: --arch=amd64 --disable-stripping --enable-avresample --enable-pthreads --enable-runtime-cpudetect --extra-version='7:1.2.6-1~trusty1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
  
    libavutil      52. 18.100 / 52. 18.100
  
    libavcodec     54. 92.100 / 54. 92.100
  
    libavformat    54. 63.104 / 54. 63.104
  
    libavdevice    53.  5.103 / 53.  5.103
  
    libavfilter     3. 42.103 /  3. 42.103
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/sites/default/files/private/videos/original/reel para web en loop_2.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2013-09-12 17:30:22
  
    Duration: 00:00:39.32, start: 0.000000, bitrate: 3190 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 720x480 [SAR 40:33 DAR 20:11], 2991 kb/s, 29.97 fps, 29.97 tbr, 29970 tbn, 59.94 tbc
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Video Media Handler
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Sound Media Handler
  
  [libx264 @ 0x164dec0] using SAR=40/33
  
  [libx264 @ 0x164dec0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x164dec0] profile Constrained Baseline, level 3.0
  
  [libx264 @ 0x164dec0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 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 '/tmp/1420389438-54a96c3eda8c1.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      encoder         : Lavf54.63.104
  
      Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 720x480 [SAR 40:33 DAR 20:11], q=-1--1, pass 1, 11988 tbn, 29.97 tbc
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Video Media Handler
  
      Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Sound Media Handler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
    Stream #0:1 -> #0:1 (aac -> aac)
  
  Press [q] to stop, [?] for help
  
  frame=   88 fps=0.0 q=29.0 size=     483kB time=00:00:02.96 bitrate=1335.6kbits/s dup=1 drop=0    
  
  frame=  190 fps=189 q=29.0 size=    1916kB time=00:00:06.33 bitrate=2477.6kbits/s dup=1 drop=0    
  
  frame=  289 fps=192 q=29.0 size=    3001kB time=00:00:09.64 bitrate=2549.5kbits/s dup=1 drop=0    
  
  frame=  395 fps=196 q=29.0 size=    3732kB time=00:00:13.31 bitrate=2296.7kbits/s dup=1 drop=0    
  
  frame=  495 fps=197 q=29.0 size=    4481kB time=00:00:16.66 bitrate=2203.1kbits/s dup=1 drop=0    
  
  frame=  591 fps=196 q=29.0 size=    5152kB time=00:00:19.98 bitrate=2111.4kbits/s dup=1 drop=0    
  
  frame=  690 fps=196 q=29.0 size=    6329kB time=00:00:23.01 bitrate=2252.4kbits/s dup=1 drop=0    
  
  frame=  790 fps=197 q=29.0 size=    7184kB time=00:00:26.32 bitrate=2235.6kbits/s dup=1 drop=0    
  
  frame=  890 fps=197 q=29.0 size=    8532kB time=00:00:29.73 bitrate=2350.3kbits/s dup=1 drop=0    
  
  frame= 1000 fps=199 q=29.0 size=    9398kB time=00:00:33.42 bitrate=2303.0kbits/s dup=1 drop=0    
  
  frame= 1106 fps=200 q=29.0 size=   10423kB time=00:00:37.01 bitrate=2306.8kbits/s dup=1 drop=0    
  
  frame= 1178 fps=199 q=-1.0 Lsize=   11404kB time=00:00:39.31 bitrate=2376.1kbits/s dup=1 drop=0
  
  video:10752kB audio:618kB subtitle:0 global headers:0kB muxing overhead 0.302603%
  
  [libx264 @ 0x164dec0] frame I:87    Avg QP:24.23  size: 21823
  
  [libx264 @ 0x164dec0] frame P:1091  Avg QP:25.90  size:  8351
  
  [libx264 @ 0x164dec0] mb I  I16..4: 50.9%  0.0% 49.1%
  
  [libx264 @ 0x164dec0] mb P  I16..4: 14.8%  0.0%  0.0%  P16..4: 51.3%  0.0%  0.0%  0.0%  0.0%    skip:33.9%
  
  [libx264 @ 0x164dec0] coded y,uvDC,uvAC intra: 43.9% 38.7% 10.2% inter: 23.0% 14.4% 0.8%
  
  [libx264 @ 0x164dec0] i16 v,h,dc,p: 31% 39% 19% 11%
  
  [libx264 @ 0x164dec0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 44% 14%  5%  4%  4%  4%  4%  4%
  
  [libx264 @ 0x164dec0] i8c dc,h,v,p: 57% 22% 17%  4%
  
  [libx264 @ 0x164dec0] kb/s:2240.77
  
  /usr/bin/ffmpeg -i '/var/www/html/sites/default/files/private/videos/original/reel para web en loop_2.mp4' -strict experimental -vcodec 'h264' -acodec 'aac' -vprofile 'baseline' -ac '2' -pass '2' -passlogfile '/tmp/1420389438-54a96c3eda9fc-multipass'  -y /tmp/1420389438-54a96c3eda8c1.mp4
  
  ffmpeg version 1.2.6-7:1.2.6-1~trusty1 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Apr 26 2014 18:52:58 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
    configuration: --arch=amd64 --disable-stripping --enable-avresample --enable-pthreads --enable-runtime-cpudetect --extra-version='7:1.2.6-1~trusty1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
  
    libavutil      52. 18.100 / 52. 18.100
  
    libavcodec     54. 92.100 / 54. 92.100
  
    libavformat    54. 63.104 / 54. 63.104
  
    libavdevice    53.  5.103 / 53.  5.103
  
    libavfilter     3. 42.103 /  3. 42.103
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/sites/default/files/private/videos/original/reel para web en loop_2.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2013-09-12 17:30:22
  
    Duration: 00:00:39.32, start: 0.000000, bitrate: 3190 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 720x480 [SAR 40:33 DAR 20:11], 2991 kb/s, 29.97 fps, 29.97 tbr, 29970 tbn, 59.94 tbc
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Video Media Handler
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Sound Media Handler
  
  [libx264 @ 0x161eec0] using SAR=40/33
  
  [libx264 @ 0x161eec0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x161eec0] constant rate-factor is incompatible with 2pass.
  
  Output #0, mp4, to '/tmp/1420389438-54a96c3eda8c1.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      Stream #0:0(eng): Video: h264, yuv420p, 720x480 [SAR 40:33 DAR 20:11], q=-1--1, pass 2, 90k tbn, 29.97 tbc
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Video Media Handler
  
      Stream #0:1(eng): Audio: none, 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        creation_time   : 2013-09-12 17:30:22
  
        handler_name    : Mainconcept MP4 Sound Media Handler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
    Stream #0:1 -> #0:1 (aac -> aac)
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  When I save a node and add its corresponding video, the module generates the 3 files with their respective formats. But when thrown at the JW Player module, only plays FLV in every browser.
  But not the MP4 or WebM.

  I checked the log and status report and all I get in order.

  So I assume that the MP4 and WebM formats generated are not what the JW Player waiting.

  Does anyone have the solution to this problem ? I tried to recompile FFMPEG with more codecs but it does not solve the problem.

  This is my FFMPEG Configuration :

  ffmpeg version 1.2.6-1~trusty1 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Apr 26 2014 18:52:58 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
    configuration: --arch=amd64 --disable-stripping --enable-avresample --enable-pthreads --enable-runtime-cpudetect --extra-version='7:1.2.6-1~trusty1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static