Recherche avancée

Sur d’autres sites (2573)

• ERROR : Cannot Autodetect input stream or No signal

  23 juin 2022, par Damián Devera

  I am using Decklink Mini Recorder to capture video (it has SDI and HDMI inputs, tried both).

  


  This is my setup : Debian 10.2.1 (non GUI), ffmpeg 5.0, Blackmagic software 12.3

  


  For that I installed custom build of ffmpeg :

  


  sudo apt-get update -qq && sudo apt-get -y install \
  autoconf \
  automake \
  build-essential \
  cmake \
  git-core \
  libass-dev \
  libmp3lame-dev \
  libfreetype6-dev \
  libtool \
  libvorbis-dev \
  pkg-config \
  texinfo \
  wget \
  zlib1g-dev
sudo apt-get -y install \
  nasm yasm

sudo apt-get install -y libopus-dev
sudo apt-get install -y libvpx-dev
sudo apt-get install -y libx264-dev
sudo apt-get install -y libx265-dev
sudo apt-get install -y libnuma-dev
sudo apt-get install -y libfdk-aac-dev
sudo apt-get install -y libmp3lame-dev

cd ~/ffmpeg_sources && \
git -C fdk-aac pull 2> /dev/null || git clone --depth 1 https://github.com/mstorsjo/fdk-aac && \
cd fdk-aac && \
autoreconf -fiv && \
./configure --prefix="$HOME/ffmpeg_build" --disable-shared && \
make && \
make install



cd ~/ffmpeg_sources
wget https://ffmpeg.org/releases/ffmpeg-4.1.3.tar.bz2
tar -xvf ffmpeg-*.tar.bz2
cd ffmpeg-*/
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
  --prefix="$HOME/ffmpeg_build" \
  --pkg-config-flags="--static" \
  --extra-cflags="-I$HOME/ffmpeg_build/include -I$HOME/ffmpeg_sources/BMD_SDK/include" \
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
  --extra-libs="-lpthread -lm" \
  --bindir="$HOME/bin" \
  --enable-gpl \
  --enable-libass \
  --enable-libfdk-aac \
  --enable-libfreetype \
  --enable-libmp3lame \
  --enable-libopus \
  --enable-libvorbis \
  --enable-libvpx \
  --enable-libx264 \
  --enable-libx265 \
  --enable-nonfree \
  --enable-decklink

PATH="$HOME/bin:$PATH" make -j `nproc`
sudo cp ffmpeg ffprobe /usr/local/bin/


  


  I can see my card using Blackmagic softwares for the card and also using ffmpeg -sources decklink.

  


  But when I try to run this : ffmpeg -f decklink -i 'DeckLink Mini Recorder' -t 10 -c:v libx264 -f mp4 test.mp4

  


  I get error : Cannot Autodetect input stream or No signal  DeckLink Mini Recorder: Input/output error

  


  UPDATE 1 : I used new command ffmpeg -y -format_code 23ps -f decklink -i 'DeckLink Mini Recorder' test.mov -report
Now I can run command, but I capture only colour bars.

  


  UPDATE 2 : I used new command ffmpeg -f decklink -video_input hdmi -i ‘DeckLink Mini Recorder’ -t 10 test.mp4
I am now capturing over HDMI.

  


  Now I am trying to use SDI on the card (which is my main target) but running into same problems (using this command : ffmpeg -f decklink -video_input sdi -i ‘DeckLink Mini Recorder’ -t 10 test.mp4). I have HDMI to SDI convertor from BlackMagic (HDMI to SDI 3G). Does anybody know, what is the problem ?

  


• How to solve issue with ffmpeg being stuck at 'Opening an input file'

  20 mai 2021, par zv989

  I am using a capture card to capture HDMI audio from another machine.

  



  On my host, output of arecord -l is as follow :

  



  **** List of CAPTURE Hardware Devices ****
Home directory not accessible: Permission denied
card 0: PCH [HDA Intel PCH], device 0: ALC283 Analog [ALC283 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: capture [ezcap U3 capture], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0


  



  The command that I use is :

  



  sudo ffmpeg -f alsa -i hw:CARD=capture,DEV=0 -t 30 test.wav -loglevel debug


  



  When I ran the command, the log seems to freeze at 'Opening an input file' as below :

  



  ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Splitting the commandline.

Reading option '-f' ... matched as option 'f' (force format) with argument 'alsa'.

Reading option '-i' ... matched as input url with argument 'hw:CARD=capture,DEV=0'.

Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '30'.

Reading option 'test.wav' ... matched as output url.

Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.

Finished splitting the commandline.

Parsing a group of options: global .

Applying option loglevel (set logging level) with argument debug.

Successfully parsed a group of options.

Parsing a group of options: input url hw:CARD=capture,DEV=0.

Applying option f (force format) with argument alsa.

Successfully parsed a group of options.

Opening an input file: hw:CARD=capture,DEV=0.


  



  It will just stuck there forever, until I press Ctrl+C, then the log continues as follow :

  



  [alsa @ 0x55c9f0eee8c0] interrupted
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, alsa, from 'hw:CARD=capture,DEV=0':
  Duration: N/A, bitrate: 1536 kb/s
    Stream #0:0, 0, 1/1000000: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Successfully opened the file.
Parsing a group of options: output url test.wav.
Applying option t (record or transcode "duration" seconds of audio/video) with argument 30.
Successfully parsed a group of options.
Opening an output file: test.wav.
File 'test.wav' already exists. Overwrite ? [y/N] y
[file @ 0x55c9f0f03280] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Finishing stream 0:0 without any data written to it.
detected 4 logical cores
[graph_0_in_0_0 @ 0x55c9f0f05dc0] Setting 'time_base' to value '1/48000'
[graph_0_in_0_0 @ 0x55c9f0f05dc0] Setting 'sample_rate' to value '48000'
[graph_0_in_0_0 @ 0x55c9f0f05dc0] Setting 'sample_fmt' to value 's16'
[graph_0_in_0_0 @ 0x55c9f0f05dc0] Setting 'channel_layout' to value '0x3'
[graph_0_in_0_0 @ 0x55c9f0f05dc0] tb:1/48000 samplefmt:s16 samplerate:48000 chlayout:0x3
[format_out_0_0 @ 0x55c9f0f060c0] Setting 'sample_fmts' to value 's16'
[AVFilterGraph @ 0x55c9f0f04be0] query_formats: 5 queried, 12 merged, 0 already done, 0 delayed
Output #0, wav, to 'test.wav':
  Metadata:
    ISFT            : Lavf57.83.100
    Stream #0:0, 0, 1/48000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
    Metadata:
      encoder         : Lavc57.107.100 pcm_s16le
size=       0kB 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
Input file #0 (hw:CARD=capture,DEV=0):
  Input stream #0:0 (audio): 0 packets read (0 bytes); 0 frames decoded (0 samples);
  Total: 0 packets (0 bytes) demuxed
Output file #0 (test.wav):
  Output stream #0:0 (audio): 0 frames encoded (0 samples); 0 packets muxed (0 bytes);
  Total: 0 packets (0 bytes) muxed
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
0 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x55c9f0f033e0] Statistics: 3 seeks, 3 writeouts
Exiting normally, received signal 2.


  



  What is wrong with the command ?

  


• FFMPEG replace audio with new mp3 audio gives error Unrecognized option 'codec'

  15 février 2016, par Waqleh

  I am trying to replace an audio in a video with another audio like so :

  ffmpeg -i \/home\/test\/public_html\/ted\/videos\/c812e2423b6b5da2f4e00c62bf70d2f3.mp4 -i \/home\/test\/public_html\/ted\/app\/templates\/default\/sounds\/taj-express-30sec.mp3 -codec copy -shortest \/home\/test\/public_html\/ted\/videos\/55e5a21e111af1cc0bdb3637b601f64d_with_audio.mp4
  
  FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
  
    configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --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
  
    libavfilter    1.19. 0 /  1.19. 0
  
    libswscale     0.11. 0 /  0.11. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  
  
  Seems stream 0 codec frame rate differs from container frame rate: 20.00 (20/1) -> 10.00 (20/2)
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/test/public_html/ted/videos/c812e2423b6b5da2f4e00c62bf70d2f3.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp41isom
  
    Duration: 00:00:23.44, start: 0.000000, bitrate: 273 kb/s
  
      Stream #0.0(und): Video: h264, yuv420p, 1364x698 [PAR 1:1 DAR 682:349], 268 kb/s, 9.98 fps, 10 tbr, 10k tbn, 20 tbc
  
      Stream #0.1(und): Audio: aac, 44100 Hz, mono, s16, 1 kb/s
  
  [mp3 @ 0x1c648a0]max_analyze_duration reached
  
  Input #1, mp3, from '/home/test/public_html/ted/app/templates/default/sounds/taj-express-30sec.mp3':
  
    Metadata:
  
      comment         : Description
  
      TENC            : BLUE PRODUCTION
  
      originator_reference: CCOOONNNNNNNNNNNNHHMMSSRRRRRRRRR
  
      TDRC            : 2012:05:03
  
      coding_history  : A=PCM,F=44100,W=16,M=stereo,T=Nuendo
  
  
  
      time_reference  : 1601731
  
      umid            : 0x24FF296F2093409DA42CA66529FF7FA800000000000000000000000000000000
  
      TSSE            : Lavf57.23.101
  
    Duration: 00:00:30.04, start: 0.000000, bitrate: 128 kb/s
  
      Stream #1.0: Audio: mp3, 44100 Hz, 2 channels, s16, 128 kb/s
  
  Unrecognized option 'codec'

  but I keep getting Unrecognized option ’codec’

  It work local fine on ubuntu, but on the server centos 6 with WHM cPanel it is not ! why ?