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• Glue 2 FLV movies with FFmpeg

  30 octobre 2013, par Rubytastic

  Im new to ffmpeg and the documentations are overwhelming.

  Would like to "Glue" 2 FLV movies together (ascii art does not work here so)

  [ 1 ] [ 2 ]

  [1][2] <= create 1 new movie with the 2 video's playing next to each other

• Set timeout on ffmpeg process

  30 octobre 2013, par Thomas Vervik

  Sometims ffmpeg never completes, and thereby preventing conversions of other videos in the queue. Is it possible to set some sort of timeout in ffmpeg such that it terminates if it isnt finished within some given time, example 5 min

  My command looks like this today:

   ffmpeg -i /home/tomcat/bsafevideo/1efef9daa7f5000ed83d67f6fbd0e7d9/aad5adc307c4dd7e457509423a7f3734/69451c31cd592e86138423f6849d8141 -y -r 24 -ar 22050 -f mov -vf [in]transpose=1[rt0],[rt0]scale=iw*480/ih:480[sc0],[sc0]pad=640:480:140[pd0],movie=/srv/bsafe/tomcat7/webapps/ROOT/resources/images/logo_watermark.png [wm],[pd0][wm] overlay=W-w-140:0[out] /home/tomcat/bsafevideo/1efef9daa7f5000ed83d67f6fbd0e7d9/aad5adc307c4dd7e457509423a7f3734/69451c31cd592e86138423f6849d8141.mov -ar 22050 -b 1500k -vcodec libtheora -acodec libvorbis -f ogg -vf [in]transpose=1[rt0],[rt0]scale=iw*480/ih:480[sc0],[sc0]pad=640:480:140[pd0],movie=/srv/bsafe/tomcat7/webapps/ROOT/resources/images/logo_watermark.png [wm],[pd0][wm] overlay=W-w-140:0[out] /home/tomcat/bsafevideo/1efef9daa7f5000ed83d67f6fbd0e7d9/aad5adc307c4dd7e457509423a7f3734/69451c31cd592e86138423f6849d8141.ogg -ar 22050 -vcodec libx264 -profile baseline -vf [in]transpose=1[rt0],[rt0]scale=iw*480/ih:480[sc0],[sc0]pad=640:480:140[pd0],movie=/srv/bsafe/tomcat7/webapps/ROOT/resources/images/logo_watermark.png [wm],[pd0][wm] overlay=W-w-140:0[out] /home/tomcat/bsafevideo/1efef9daa7f5000ed83d67f6fbd0e7d9/aad5adc307c4dd7e457509423a7f3734/69451c31cd592e86138423f6849d8141_mp4.mp4
  

  UPDATE. Thanks LordNeckBerd, you pointed me in right direction!

  So I see now its kind of not ffmpeg really hanging, the issue is that my java code which reads the inputstream from the linux process will block since ffmpeg never returns a end of line, which I see now when Im running the command. This is the blocking line, it waits for more input from me.

  Press [q] to stop, [?] for help
  

  So its two issues here now. First is why this particular conversion is failing, and second, how to make sure ffmpeg is not making this (for my Java process) blocking command asking for more input.

  C:\Program Files (x86)\Console2>ffmpeg -i C:/projectsGit/bsafe-server/classes/test/bs-   base/video/ac7601e2bc3bc1545cd30ad3160f5232 -y -r 24 -ar 22050 -f mov C:/projectsGit/bsafe-server/classes/test/bs-base/video/ac7601e2bc3bc1545cd30ad3160f5232.mov -ar 22050 -b:v 1500k -vcodec libtheora -acodec libvorbis -f ogg C:/projectsGit/bsafe-server/classes/test/bs-base/video/ac7601e2bc3bc1545cd30ad3160f5232.ogg -ar 22050 -vcodec libx264 -profile:v baseline C:/projectsGit/bsafe-server/classes/test/bs-base/video/ac7601e2bc3bc1545cd30ad3160f5232_mp4.mp4
  ffmpeg version N-54762-g38b701a Copyright (c) 2000-2013 the FFmpeg developers
  built on Jul 15 2013 18:47:20 with gcc 4.7.3 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --  enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-  libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable- libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable- libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame - -enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable- libx264 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      52. 39.100 / 52. 39.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 81.101 /  3. 81.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:/projectsGit/bsafe-server/classes/test/bs-  base/video/ac7601e2bc3bc1545cd30ad3160f5232':
  Metadata:
  major_brand     : isom
  minor_version   : 0
  compatible_brands: isom3gp4
  creation_time   : 2013-01-15 05:46:02
  Duration: 00:00:10.03, start: 0.000000, bitrate: 394 kb/s
  Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x480, 264 kb/s, SAR 65536:65536 DAR 4:3, 10.95 fps, 90k tbr, 90k tbn, 180k tbc
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : VideoHandle
  Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 127 kb/s
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : SoundHandle
   [ogg @ 00000000027d7860] Frame rate very high for a muxer not efficiently supporting it.
  Please consider specifying a lower framerate, a different muxer or -vsync 2
  [mp4 @ 00000000027dacc0] Frame rate very high for a muxer not efficiently supporting it.
  Please consider specifying a lower framerate, a different muxer or -vsync 2
  [libx264 @ 0000000003e6b9c0] using SAR=1/1
  [libx264 @ 0000000003e6b9c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  [libx264 @ 0000000003e6b9c0] profile High, level 3.0
  [libx264 @ 0000000003e6b9c0] 264 - core 133 r2334 a3ac64b - H.264/MPEG-4 AVC codec -   Copyleft 2003-2013 - 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=24 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
  [libx264 @ 00000000027db4a0] using SAR=1/1
  [libx264 @ 00000000027db4a0] MB rate (108000000) > level limit (2073600)
  [libx264 @ 00000000027db4a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  [libx264 @ 00000000027db4a0] profile Constrained Baseline, level 5.2
  [libx264 @ 00000000027db4a0] 264 - core 133 r2334 a3ac64b - H.264/MPEG-4 AVC codec -  Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=0 ref=3  deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1  me_range=16 chroma_me=1 trellis=1 8x8dct=0 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=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, mov, to 'C:/projectsGit/bsafe-server/classes/test/bs-  base/video/ac7601e2bc3bc1545cd30ad3160f5232.mov':
  Metadata:
  major_brand     : isom
  minor_version   : 0
  compatible_brands: isom3gp4
  encoder         : Lavf55.12.102
  Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1  DAR 4:3], q=-1--1, 12288 tbn, 24 tbc
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : VideoHandle
  Stream #0:1(eng): Audio: aac (libvo_aacenc) (mp4a / 0x6134706D), 22050 Hz, mono, s16, 128 kb/s
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : SoundHandle
  Output #1, ogg, to 'C:/projectsGit/bsafe-server/classes/test/bs-base/video/ac7601e2bc3bc1545cd30ad3160f5232.ogg':
  Metadata:
  major_brand     : isom
  minor_version   : 0
  compatible_brands: isom3gp4
  encoder         : Lavf55.12.102
  Stream #1:0(eng): Video: theora (libtheora), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 1500 kb/s, 90k tbn, 90k tbc
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : VideoHandle
  Stream #1:1(eng): Audio: vorbis (libvorbis), 22050 Hz, mono, fltp
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : SoundHandle
  Output #2, mp4, to 'C:/projectsGit/bsafe-server/classes/test/bs-base/video/ac7601e2bc3bc1545cd30ad3160f5232_mp4.mp4':
  Metadata:
  major_brand     : isom
  minor_version   : 0
  compatible_brands: isom3gp4
  encoder         : Lavf55.12.102
  Stream #2:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 90k tbn, 90k tbc
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : VideoHandle
  Stream #2:1(eng): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 22050 Hz, mono, s16, 128 kb/s
  Metadata:
    creation_time   : 2013-01-15 05:46:02
    handler_name    : SoundHandle
  Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> libx264)
  Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
  Stream #0:0 -> #1:0 (h264 -> libtheora)
  Stream #0:1 -> #1:1 (aac -> libvorbis)
  Stream #0:0 -> #2:0 (h264 -> libx264)
  Stream #0:1 -> #2:1 (aac -> libvo_aacenc)
  Press [q] to stop, [?] for help
  

• flash/modules/global/app/ffmpeg.exe is Non-Executable

  30 octobre 2013, par Juan Rocamonde

  I cannot install dolphin. Always it returns back the same error:
  The following files have inappropriate permissions: flash/modules/global/app/ffmpeg.exe;
  And if I scroll down, I can se this:
  flash/modules/global/app/ffmpeg.exe -- Non-Executable
  And I made it executable, chmod777 and I didn't work, so I tried with chmod755 and all chmods with executable parametres. And it didn't work anyway.
  Help please! I need to get this working asap, is for a business!
  Thanks people.

• How to display live web camera video into video player using ffmpeg

  30 octobre 2013, par Akash Langhani

  I want to use live camera video and play same time in a video player, means record and play parallel, can ffmpeg perform this, if yes then how.

• Can I decode this audio format ?

  30 octobre 2013, par Naftuli Tzvi Kay

  I'm writing a Python program which depends on FFMPEG to decode audio into WAV format. I'd like to be able to process as many types of audio, but I need a way to quickly check if I can actually work with the uploaded file or not. I've compiled my own FFMPEG installation here.

  Specifically, I'd like to enforce logic like this in my application:

  if ffmpeg_type(file_path) is not "audio":
      raise Exception("Bro, that's not an audio file.")
  elif not ffmpeg_can_decode_audio(file_path):
      raise Exception("I have no way of working with this.")
  

  (I realize that it wouldn't be as easy as just calling these methods, I assume I'd need to parse output from a system call.)

  Is there a way that I could use the command-line ffmpeg, ffprobe, etc. to determine if a given file is an audio file and if I can decode it?