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• omxplayer freezes with videos generated with FFMPEG

  31 December 2020, by Chocksmith

  Omxplayer won't play any videos generated with FFmpeg on a Raspberry Pi

  


  I found this thread showing that it is necessary to include '-profile baseline -level 3.0' parameters: https://github.com/popcornmix/omxplayer/issues/577

  


  The full command is:

  


  ffmpeg -framerate 1/10 -pattern_type glob -i '*.jpg' -c:v libx264 -pix_fmt yuv420p -profile baseline -level 3.0 images.mp4


  


  I did that and now I am experiencing intermittent behavior.

  


  Sometimes it works and sometimes it does not work. I cannot explain why/when it plays or not.

  


  I also found a thread showing that it is necessary to upgrade the firmware and player. I did that and still having the same issue.

  


  Here is an example. First time it plays ok. Second time it freezes.

  


  First time: creating mp4

  


  (env) pi@raspberrypi:~/mkt $ ffmpeg -framerate 1/10 -pattern_type glob -i 'mensagens/*.jpeg' -c:v libx264 -pix_fmt yuv420p -profile baseline -level 3.0 images.mp4
ffmpeg version 4.1.6-1~deb10u1+rpt1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Raspbian 8.3.0-6+rpi1)
  configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --libdir=/usr/lib/arm-linux-gnueabihf --cpu=arm1176jzf-s --arch=arm
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Input #0, image2, from 'mensagens/*.jpeg':
  Duration: 00:01:10.00, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1024x768 [SAR 72:72 DAR 4:3], 0.10 fps, 0.10 tbr, 0.10 tbn, 0.10 tbc
Please use -profile:a or -profile:v, -profile is ambiguous
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[swscaler @ 0x182ad70] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x17b1170] using SAR=1/1
[libx264 @ 0x17b1170] frame MB size (64x48) > level limit (1620)
[libx264 @ 0x17b1170] using cpu capabilities: none!
[libx264 @ 0x17b1170] profile Constrained Baseline, level 3.0
[libx264 @ 0x17b1170] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=2 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=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=1 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 'images.mp4':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1, 0.10 fps, 16384 tbn, 0.10 tbc
    Metadata:
      encoder         : Lavc58.35.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=    7 fps=0.7 q=15.0 Lsize=      79kB time=00:01:00.00 bitrate=  10.8kbits/s speed=5.66x    
video:78kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.085207%
[libx264 @ 0x17b1170] frame I:3     Avg QP: 2.03  size: 14789
[libx264 @ 0x17b1170] frame P:4     Avg QP: 5.28  size:  8794
[libx264 @ 0x17b1170] mb I  I16..4: 91.0%  0.0%  9.0%
[libx264 @ 0x17b1170] mb P  I16..4: 26.1%  0.0%  3.8%  P16..4:  3.4%  1.3%  1.0%  0.0%  0.0%    skip:64.4%
[libx264 @ 0x17b1170] coded y,uvDC,uvAC intra: 6.5% 0.0% 0.0% inter: 2.8% 0.0% 0.0%
[libx264 @ 0x17b1170] i16 v,h,dc,p: 97%  1%  2%  0%
[libx264 @ 0x17b1170] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 19% 20%  4%  3%  4%  3%  3%  3%
[libx264 @ 0x17b1170] i8c dc,h,v,p: 100%  0%  0%  0%
[libx264 @ 0x17b1170] ref P L0: 55.1% 44.9%
[libx264 @ 0x17b1170] kb/s:9.09


  


  First time playing mp4 (it plays OK):

  


  (env) pi@raspberrypi:~/mkt $ omxplayer images.mp4 
Invalid framerate 0, using forced 25fps and just trust timestamps
Video codec omx-h264 width 1024 height 768 profile 578 fps 25.000000
Subtitle count: 0, state: off, index: 1, delay: 0
V:PortSettingsChanged: 1024x768@0.10 interlace:0 deinterlace:0 anaglyph:0 par:1.00 display:0 layer:0 alpha:255 aspectMode:0
have a nice day ;)


  


  Second time creating mp4 (nothing changes):

  


  (env) pi@raspberrypi:~/mkt $ ffmpeg -framerate 1/10 -pattern_type glob -i 'mensagens/*.jpeg' -c:v libx264 -pix_fmt yuv420p -profile baseline -level 3.0 images.mp4
ffmpeg version 4.1.6-1~deb10u1+rpt1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Raspbian 8.3.0-6+rpi1)
  configuration: --prefix=/usr --extra-version='1~deb10u1+rpt1' --toolchain=hardened --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-neon --enable-rpi --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --libdir=/usr/lib/arm-linux-gnueabihf --cpu=arm1176jzf-s --arch=arm
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Input #0, image2, from 'mensagens/*.jpeg':
  Duration: 00:01:10.00, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1024x768 [SAR 72:72 DAR 4:3], 0.10 fps, 0.10 tbr, 0.10 tbn, 0.10 tbc
Please use -profile:a or -profile:v, -profile is ambiguous
File 'images.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[swscaler @ 0x1c5fd70] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x1be6170] using SAR=1/1
[libx264 @ 0x1be6170] frame MB size (64x48) > level limit (1620)
[libx264 @ 0x1be6170] using cpu capabilities: none!
[libx264 @ 0x1be6170] profile Constrained Baseline, level 3.0
[libx264 @ 0x1be6170] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=2 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=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=1 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 'images.mp4':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1, 0.10 fps, 16384 tbn, 0.10 tbc
    Metadata:
      encoder         : Lavc58.35.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=    7 fps=0.7 q=15.0 Lsize=      79kB time=00:01:00.00 bitrate=  10.8kbits/s speed=5.78x    
video:78kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.085207%
[libx264 @ 0x1be6170] frame I:3     Avg QP: 2.03  size: 14789
[libx264 @ 0x1be6170] frame P:4     Avg QP: 5.28  size:  8794
[libx264 @ 0x1be6170] mb I  I16..4: 91.0%  0.0%  9.0%
[libx264 @ 0x1be6170] mb P  I16..4: 26.1%  0.0%  3.8%  P16..4:  3.4%  1.3%  1.0%  0.0%  0.0%    skip:64.4%
[libx264 @ 0x1be6170] coded y,uvDC,uvAC intra: 6.5% 0.0% 0.0% inter: 2.8% 0.0% 0.0%
[libx264 @ 0x1be6170] i16 v,h,dc,p: 97%  1%  2%  0%
[libx264 @ 0x1be6170] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 19% 20%  4%  3%  4%  3%  3%  3%
[libx264 @ 0x1be6170] i8c dc,h,v,p: 100%  0%  0%  0%
[libx264 @ 0x1be6170] ref P L0: 55.1% 44.9%
[libx264 @ 0x1be6170] kb/s:9.09


  


  Second time playing mp4 (it freezes. I had to ctrl-c to interrupt):

  


  (env) pi@raspberrypi:~/mkt $ omxplayer images.mp4 
Invalid framerate 0, using forced 25fps and just trust timestamps
Video codec omx-h264 width 1024 height 768 profile 578 fps 25.000000
Subtitle count: 0, state: off, index: 1, delay: 0
Stopped at: 00:00:00
have a nice day ;)


  


• Get Timecode from MP4 generated in Adobe Premiere / Encoder in Python and FFMPEG

  3 November 2019, by russellaugust

  I’m writing a script that needs to either convert or re-container an MP4 as an MOV with timecode.

  I have an MP4 generated from Adobe Premiere. If I bring that file back into Premiere, I have timecode. I can see it so I know it is there.

  I can’t seem to extract the timecode track from the MP4. I’ve looked everywhere online and found some discussions around it, but no actual success in extracting the timecode.

  I’ve been using ffprobe to see if there’s any mention of the timecode in the MP4, but having no luck. I’ve tried PyMediaInfo with no success.

  Here’s what ffprobe shows:

  ffprobe version 4.2.1 Copyright (c) 2007-2019 the FFmpeg developers
  
    built with Apple clang version 11.0.0 (clang-1100.0.33.8)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1_1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include/darwin -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  
    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'demo_SequenceV3.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2019-11-01T23:34:45.000000Z
  
    Duration: 00:00:27.69, start: 0.000000, bitrate: 10463 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 2304x1152 [SAR 1:1 DAR 2:1], 10142 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 48k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-11-01T23:34:45.000000Z
  
        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   : 2019-11-01T23:34:46.000000Z
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
  [STREAM]
  
  index=0
  
  codec_name=h264
  
  codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
  
  profile=Main
  
  codec_type=video
  
  codec_time_base=1001/48000
  
  codec_tag_string=avc1
  
  codec_tag=0x31637661
  
  width=2304
  
  height=1152
  
  coded_width=2304
  
  coded_height=1152
  
  has_b_frames=0
  
  sample_aspect_ratio=1:1
  
  display_aspect_ratio=2:1
  
  pix_fmt=yuv420p
  
  level=50
  
  color_range=tv
  
  color_space=bt709
  
  color_transfer=bt709
  
  color_primaries=bt709
  
  chroma_location=left
  
  field_order=unknown
  
  timecode=N/A
  
  refs=1
  
  is_avc=true
  
  nal_length_size=4
  
  id=N/A
  
  r_frame_rate=24000/1001
  
  avg_frame_rate=24000/1001
  
  time_base=1/24000
  
  start_pts=0
  
  start_time=0.000000
  
  duration_ts=663663
  
  duration=27.652625
  
  bit_rate=10142082
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=8
  
  nb_frames=663
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=1
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  TAG:creation_time=2019-11-01T23:34:45.000000Z
  
  TAG:language=eng
  
  TAG:handler_name=Mainconcept Video Media Handler
  
  TAG:encoder=AVC Coding
  
  [/STREAM]
  
  [STREAM]
  
  index=1
  
  codec_name=aac
  
  codec_long_name=AAC (Advanced Audio Coding)
  
  profile=LC
  
  codec_type=audio
  
  codec_time_base=1/48000
  
  codec_tag_string=mp4a
  
  codec_tag=0x6134706d
  
  sample_fmt=fltp
  
  sample_rate=48000
  
  channels=2
  
  channel_layout=stereo
  
  bits_per_sample=0
  
  id=N/A
  
  r_frame_rate=0/0
  
  avg_frame_rate=0/0
  
  time_base=1/48000
  
  start_pts=0
  
  start_time=0.000000
  
  duration_ts=1327326
  
  duration=27.652625
  
  bit_rate=317375
  
  max_bit_rate=335623
  
  bits_per_raw_sample=N/A
  
  nb_frames=1298
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=1
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  TAG:creation_time=2019-11-01T23:34:46.000000Z
  
  TAG:language=eng
  
  TAG:handler_name=#Mainconcept MP4 Sound Media Handler
  
  [/STREAM]
  
  [FORMAT]
  
  filename=demo_SequenceV3.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=27.690667
  
  size=36216937
  
  bit_rate=10463290
  
  probe_score=100
  
  TAG:major_brand=mp42
  
  TAG:minor_version=0
  
  TAG:compatible_brands=mp42mp41
  
  TAG:creation_time=2019-11-01T23:34:45.000000Z
  
  [/FORMAT]

  And here was what I started experimenting with in Python.

  from pymediainfo import MediaInfo
  
  
  
  media_info = MediaInfo.parse('demo_SequenceV3.mp4')
  
  for track in media_info.tracks:
  
      if track.bit_rate is not None:
  
          print ("%s: %s" % (track.track_type, track.bit_rate))
  
      else:
  
          print ("""%s tracks do not have bit rate associated with them.""" % track.track_type)

  I know I’m not using MediaInfo correctly, but I couldn’t find any documentation on timecode, and to be honest I’m pretty confident it’ll just use FFMPEG’s system of searching for a data track that doesn’t appear to exist.

  Anyone here know enough about this to either get it working or to point me in the right direction?

  The goal is to re-wrap an MP4 as an MOV and translate the timecode so it is back where it normally is on the MOV.

  EDIT: here is an example MP4 that I need to extract the timecode from:

  https://www.dropbox.com/s/a1euiumiapkpzhn/timecode_demo.mp4?dl=0

  And as you can see in this image, the MP4 does have timecode that is being read by Premiere on the bottom left of frame. TC starts at 10:11:12:13.

  https://www.dropbox.com/s/pafqicnnsqu93rl/timecode_window_in_premiere.png

• Can I test funcion of nvidia decoder (nvdec/cuvid) on generated ffmpeg video?

  31 January 2021, by Milan Čížek

  goal: In my script I try to check if nvdec on my graphics card is available/functional.
I don't have any source video (H.264 / H.265) to use as input at this time intentionally, so I want to generate it.
It is also not necessary to use an encoder, because I do not need the output file.
I'm testing the exit code of command ffmpeg ($?).
I use nvidia-smi for check dec/enc load.

  


  My attempt:

  


  ffmpeg -y -hwaccel cuda -hwaccel_output_format cuda -c:v h264_cuvid -f lavfi -i testsrc="duration=5:size=1920x1080:rate=25" -c:v copy test.ts


  


  output of my commands:

  


  Input #0, lavfi, from 'testsrc=duration=5:size=1920x1080:rate=25':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: h264, rgb24, 1920x1080 [SAR 1:1 DAR 16:9], 25 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (h264_cuvid) -> wrapped_avframe (native))
Press [q] to stop, [?] for help
No information about the input framerate is available. Falling back to a default value of 25fps for output stream #0:0. Use the -r option if you want a different framerate.
Output #0, null, to 'pipe:':
  Metadata:
    encoder         : Lavf58.65.101
    Stream #0:0: Video: wrapped_avframe, rgb24, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn
    Metadata:
      encoder         : Lavc58.119.100 wrapped_avframe
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=   0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)


  


  I triead add -t 5 before test.ts but nothing changed.
Output ts file has zero size.

  


  If I debug the command, I expect to add it to the end "-f null - 2>/dev/null". Output file is only for debug purposes.

  


  Thank you.