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• .mov conversion to .mp4 using ffmpeg doesn't convert the entire video

  5 février 2013, par user504879

  I am trying to convert a mov file which I got from saving my powerpoint presentation to a movie file. However only a part of the presentation is converted not the entire one and also running qt-start doesn't make the exported mp4 to stream over rtmp. Is there something which I am missing ?

  I am attaching the output which i get when I am trying to convert the file using ffmpeg

  $ export LD_LIBRARY_PATH=/usr/local/lib; /usr/local/bin/ffmpeg -y -i /data/tmp/vialogues_prez.mov -r 20 -g 40 -acodec libfaac -ar 44100  -ab 96k -vcodec libx264 -s 640x480 -vpre medium /data/videos/vialogues_prez.mp4
  
  
  
  FFmpeg version 0.6.1, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Feb 19 2011 19:03:56 with gcc 4.4.5
  
    configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
  
    libavutil     50.15. 1 / 50.15. 1
  
    libavcodec    52.72. 2 / 52.72. 2
  
    libavformat   52.64. 2 / 52.64. 2
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libswscale     0.11. 0 /  0.11. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x186f460]max_analyze_duration reached
  
  
  
  Seems stream 0 codec frame rate differs from container frame rate: 600.00 (600/1) -> 0.08 (1/12)
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/tmp/vialogues_prez.mov':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 537199360
  
      compatible_brands: qt  
  
      comment         : Microsoft PowerPoint Movie
  
      comment-eng     : Microsoft PowerPoint Movie
  
    Duration: 00:04:47.00, start: 0.000000, bitrate: 22 kb/s
  
      Stream #0.0(eng): Video: qtrle, bgra, 640x480, 21 kb/s, 0.01 fps, 0.08 tbr, 600 tbn, 600 tbc
  
      Stream #0.1(eng): Video: 0x0000, 600 tbr, 600 tbn, 600 tbc
  
      Stream #0.2(eng): Video: 0x0000, 600 tbr, 600 tbn, 600 tbc
  
  [libx264 @ 0x1873b50]using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
  
  [libx264 @ 0x1873b50]profile High, level 3.0
  
  [libx264 @ 0x1873b50]264 - core 114 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=1 sliced_threads=0 nr=0 decimate=1 interlaced=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=abr mbtree=1 bitrate=200 ratetol=20.0 qcomp=0.60 qpmin=10 qpmax=51 qpstep=4 ip_ratio=1.41 aq=1:1.00
  
  Output #0, mp4, to '/data/videos/vialogues_prez.mp4':
  
    Metadata:
  
      encoder         : Lavf52.64.2
  
      Stream #0.0(eng): Video: libx264, yuv420p, 640x480, q=10-51, 200 kb/s, 20 tbn, 20 tbc
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
  Press [q] to stop encoding
  
  frame=    4 fps=  0 q=32766.0 Lsize=      50kB time=45.05 bitrate=   9.0kbits/s    
  
  video:49kB audio:0kB global headers:0kB muxing overhead 1.740573%
  
  [libx264 @ 0x1873b50]frame I:1     Avg QP:32.73  size:  8427
  
  [libx264 @ 0x1873b50]frame P:3     Avg QP:20.68  size: 13640
  
  [libx264 @ 0x1873b50]mb I  I16..4: 60.8% 14.6% 24.7%
  
  [libx264 @ 0x1873b50]mb P  I16..4: 28.7%  7.2% 15.4%  P16..4:  2.0%  1.3%  1.4%  0.0%  0.0%    skip:43.9%
  
  [libx264 @ 0x1873b50]final ratefactor: -16.67
  
  [libx264 @ 0x1873b50]8x8 transform intra:14.2% inter:5.0%
  
  [libx264 @ 0x1873b50]coded y,uvDC,uvAC intra: 25.2% 18.4% 13.0% inter: 5.3% 7.4% 7.2%
  
  [libx264 @ 0x1873b50]i16 v,h,dc,p: 63% 34%  1%  2%
  
  [libx264 @ 0x1873b50]i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 41% 31%  1%  1%  1%  1%  1%  4%
  
  [libx264 @ 0x1873b50]i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 33% 19%  2%  3%  3%  4%  3%  4%
  
  [libx264 @ 0x1873b50]i8c dc,h,v,p: 75% 20%  4%  1%
  
  [libx264 @ 0x1873b50]Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x1873b50]ref P L0: 57.0% 12.2% 26.2%  4.7%
  
  [libx264 @ 0x1873b50]kb/s:1.14

  any help is appreciated.

• Pipe opencv frames into ffmpeg

  25 juin 2023, par Dmytro Soltusyuk

  I am trying to pipe opencv frames into ffmpeg, but it does not work.

  


  After the research, I found this answer (https://stackoverflow.com/a/62807083/10676682) to work the best for me, so I have the following :

  


  def start_streaming_process(rtmp_url, width, height, fps):
    # fmt: off
    cmd = ['ffmpeg',
           '-y',
           '-f', 'rawvideo',
           '-vcodec', 'rawvideo',
           '-pix_fmt', 'bgr24',
           '-s', "{}x{}".format(width, height),
           '-r', str(fps),
           '-i', '-',
           '-c:v', 'libx264',
           '-pix_fmt', 'yuv420p',
           '-preset', 'ultrafast',
           '-f', 'flv',
           '-flvflags', 'no_duration_filesize',
           rtmp_url]
    # fmt: on

    return subprocess.Popen(cmd, stdin=subprocess.PIPE)


  


  def main():
    width, height, fps = get_video_size(SOURCE_VIDEO_PATH)
    streaming_process = start_streaming_process(
        TARGET_VIDEO_PATH,
        width,
        height,
        fps,
    )

    model = load_yolo(WEIGHTS_PATH)
    frame_iterator = read_frames(video_source=SOURCE_VIDEO_PATH)
    processed_frames_iterator = process_frames(
        model, frame_iterator, ball_target_area=400
    )

    for processed_frame in processed_frames_iterator:
        streaming_process.communicate(processed_frame.tobytes())

    streaming_process.kill()


  


  processed_frame here is an annotated OpenCV frame.

  


  However, after I do my first streaming_process.communicate call, the ffmpeg process exits with code 0 (meaning everything was ok), but it is not. I can not feed the rest of the frames into ffmpeg, because the process exited.

  


  Here are the logs :

  


  Input #0, rawvideo, from 'fd:':
  Duration: N/A, start: 0.000000, bitrate: 663552 kb/s
  Stream #0:0: Video: rawvideo (BGR[24] / 0x18524742), bgr24, 1280x720, 663552 kb/s, 30 tbr, 30 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
[libx264 @ 0x132e05570] using cpu capabilities: ARMv8 NEON
[libx264 @ 0x132e05570] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x132e05570] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - h
ttp://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=15 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 inter
laced=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 mbt
ree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://global-live.mux.com:5222/app/9428e064-e5d3-0bee-dc67-974ba53ce164':
  Metadata:
    encoder         : Lavf60.3.100
  Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p(tv, progressive), 1280x720, q=2-31, 30 fps
, 1k tbn
    Metadata:
      encoder         : Lavc60.3.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=    1 fps=0.0 q=29.0 Lsize=      41kB time=00:00:00.00 bitrate=N/A speed=   0x    eed=N/A    
video:40kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.678311%
[libx264 @ 0x132e05570] frame I:1     Avg QP:25.22  size: 40589
[libx264 @ 0x132e05570] mb I  I16..4: 37.7% 33.4% 28.9%
[libx264 @ 0x132e05570] 8x8 transform intra:33.4%
[libx264 @ 0x132e05570] coded y,uvDC,uvAC intra: 51.1% 53.2% 14.4%
[libx264 @ 0x132e05570] i16 v,h,dc,p: 32% 38% 20% 10%
[libx264 @ 0x132e05570] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 36% 28%  3%  2%  2%  3%  3%  6%
[libx264 @ 0x132e05570] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 37% 17%  4%  4%  4%  5%  4%  7%
[libx264 @ 0x132e05570] i8c dc,h,v,p: 46% 37% 12%  4%
[libx264 @ 0x132e05570] kb/s:9741.36


  


  That's all. Exit code 0.

  


• ffmpeg converts anything to mp4

  23 septembre 2015, par KevinOelen

  I’m trying to get familiar with python subprocess and here is my little code :

  import subprocess
  
  import os
  
  import re
  
  import subprocess as sp
  
  import logging
  
  
  
  the_file = "/home/vagrant/test/out.pkg"
  
  out_file = "/home/vagrant/test/result.mp4"
  
  
  
  ffmpeg = sp.Popen(['/usr/bin/ffmpeg', '-i', the_file, out_file], stdout = sp.PIPE, stderr = sp.STDOUT)
  
  process_output =  ffmpeg.communicate()
  
  print "communicate:", process_output

  The result :

  communicate: ("ffmpeg version N-75410-g58fe57d Copyright (c) 2000-2015 the FFmpeg developers\n  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)\n  configuration: --prefix=/home/vagrant/ffmpeg_build --extra-cflags=-I/home/vagrant/ffmpeg_build/include --extra-ldflags=-L/home/vagrant/ffmpeg_build/lib --bindir=/usr/local/bin --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-libvpx --enable-libx264 --enable-libfreetype\n  libavutil      55.  2.100 / 55.  2.100\n  libavcodec     57.  3.100 / 57.  3.100\n  libavformat    57.  2.100 / 57.  2.100\n  libavdevice    57.  0.100 / 57.  0.100\n  libavfilter     6.  5.100 /  6.  5.100\n  libswscale      4.  0.100 /  4.  0.100\n  libswresample   2.  0.100 /  2.  0.100\n  libpostproc    54.  0.100 / 54.  0.100\nInput #0, tty, from '/home/vagrant/test/out.txt':\n  Duration: 00:00:00.04, bitrate: 1 kb/s\n    Stream #0:0: Video: ansi, pal8, 640x400, 25 fps, 25 tbr, 25 tbn, 25 tbc\nNo pixel format specified, yuv444p for H.264 encoding chosen.\nUse -pix_fmt yuv420p for compatibility with outdated media players.\n[libx264 @ 0x379f300] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64\n[libx264 @ 0x379f300] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit\n[libx264 @ 0x379f300] 264 - core 148 r2597 e86f3a1 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=4 threads=1 lookahead_threads=1 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\nOutput #0, mp4, to '/home/vagrant/test/result.mp4':\n  Metadata:\n    encoder         : Lavf57.2.100\n    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 640x400, q=-1--1, 25 fps, 12800 tbn, 25 tbc\n    Metadata:\n      encoder         : Lavc57.3.100 libx264\nStream mapping:\n  Stream #0:0 -> #0:0 (ansi (native) -> h264 (libx264))\nPress [q] to stop, [?] for help\nframe=    1 fps=0.0 q=28.0 Lsize=       2kB time=00:00:00.04 bitrate= 362.4kbits/s    \nvideo:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 78.698227%\n[libx264 @ 0x379f300] frame I:1     Avg QP:13.08  size:   326\n[libx264 @ 0x379f300] mb I  I16..4:  0.4% 99.1%  0.5%\n[libx264 @ 0x379f300] 8x8 transform intra:99.1%\n[libx264 @ 0x379f300] coded y,u,v intra: 0.4% 0.0% 0.0%\n[libx264 @ 0x379f300] i16 v,h,dc,p:  0% 75% 25%  0%\n[libx264 @ 0x379f300] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  0% 92%  8%  0%  0%  0%  0%  0%  0%\n[libx264 @ 0x379f300] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 35% 35%  2%  1%  0%  2%  0%  0%\n[libx264 @ 0x379f300] kb/s:65.20\n", None)

  As it expected, sends me back a tuple (stdout,stderr). But the problem is, ffmpeg converts any file(as you can see above, even pkg file) without giving me back an error or exit status with 1. stderr = None

  Can anyone explain what’s wrong on this one ? Thanks so much.