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• can't compile ffmpeg on Solaris 10 sparc

  9 juin 2014, par Raoul

  Has anyone compiled ffmpeg 0.6.1 for Solaris 10 sparc ? I’m getting the following errors :

      uname -a
  
  SunOS SERVERNAME 5.10 Generic_118833-36 sun4u sparc SUNW,Sun-Fire-V440
  
  
  
  bwddmadm@bwddmliv>/export/home/USERID/ffmpeg-0.6.1/configure --prefix=/export/home/USERID/ffmpegX --extra-cflags="-fPIC" --disable-mmx --disable-protocol=udp --disable-encoder=nellymoser
  
  Broken shell detected.  Trying alternatives.
  
  Trying shell bash
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  Unknown C compiler gcc
  
  awk: syntax error near line 1
  
  awk: illegal statement near line 1
  
  grep: illegal option -- q
  
  Usage: grep -hblcnsviw pattern file . . .
  
  install prefix            /export/home/USERID/ffmpegX
  
  source path               /export/home/USERID/ffmpeg-0.6.1
  
  C compiler                gcc
  
  .align is power-of-two    no
  
  ARCH                      sparc (generic)
  
  big-endian                no
  
  runtime cpu detection     no
  
  VIS enabled               yes
  
  gprof enabled             no
  
  debug symbols             yes
  
  strip symbols             yes
  
  optimizations             yes
  
  static                    yes
  
  shared                    no
  
  postprocessing support    no
  
  new filter support        no
  
  filters using lavformat   no
  
  network support           yes
  
  threading support         no
  
  SDL support               no
  
  Sun medialib support      no
  
  AVISynth enabled          no
  
  libdc1394 support         no
  
  libdirac enabled          no
  
  libfaac enabled           no
  
  libfaad enabled           no
  
  libfaad dlopened          no
  
  libgsm enabled            no
  
  libmp3lame enabled        no
  
  libnut enabled            no
  
  libopencore-amrnb support no
  
  libopencore-amrwb support no
  
  libopenjpeg enabled       no
  
  librtmp enabled           no
  
  libschroedinger enabled   no
  
  libspeex enabled          no
  
  libtheora enabled         no
  
  libvorbis enabled         no
  
  libvpx enabled            no
  
  libx264 enabled           no
  
  libxvid enabled           no
  
  zlib enabled              no
  
  bzlib enabled             no
  
  
  
  Enabled decoders:
  
  pr:  -- empty file
  
  
  
  Enabled encoders:
  
  pr:  -- empty file
  
  
  
  Enabled hwaccels:
  
  pr:  -- empty file
  
  
  
  Enabled parsers:
  
  pr:  -- empty file
  
  
  
  Enabled demuxers:
  
  pr:  -- empty file
  
  
  
  Enabled muxers:
  
  pr:  -- empty file
  
  
  
  Enabled protocols:
  
  pr:  -- empty file
  
  
  
  Enabled filters:
  
  pr:  -- empty file
  
  
  
  Enabled bsfs:
  
  pr:  -- empty file
  
  
  
  Enabled indevs:
  
  pr:  -- empty file
  
  
  
  Enabled outdevs:
  
  pr:  -- empty file
  
  
  
  License: LGPL version 2.1 or later
  
  Creating config.mak and config.h...
  
  bwddmadm@bwddmliv> gmake
  
  /export/home/USERID/ffmpeg-0.6.1/version.sh: syntax error at line 4: `revision=$' unexpected
  
  CC      libavdevice/alldevices.o
  
  libavdevice/alldevices.c: In function `avdevice_register_all':
  
  libavdevice/alldevices.c:42: error: `CONFIG_ALSA_OUTDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:42: error: (Each undeclared identifier is reported only once
  
  libavdevice/alldevices.c:42: error: for each function it appears in.)
  
  libavdevice/alldevices.c:42: error: `CONFIG_ALSA_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:43: error: `CONFIG_AUDIO_BEOS_OUTDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:43: error: `CONFIG_AUDIO_BEOS_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:44: error: `CONFIG_BKTR_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:45: error: `CONFIG_DV1394_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:46: error: `CONFIG_JACK_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:47: error: `CONFIG_OSS_OUTDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:47: error: `CONFIG_OSS_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:48: error: `CONFIG_V4L2_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:49: error: `CONFIG_V4L_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:50: error: `CONFIG_VFWCAP_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:51: error: `CONFIG_X11_GRAB_DEVICE_INDEV' undeclared (first use in this function)
  
  libavdevice/alldevices.c:54: error: `CONFIG_LIBDC1394_INDEV' undeclared (first use in this function)
  
  gmake: *** [libavdevice/alldevices.o] Error 1
  
  bwddmadm@bwddmliv> exit
  
  
  
  script done on Fri Jan 14 11:34:05 2011

• hw_base_encode : make recon_frames_ref optional

  30 août 2024, par Lynne

  hw_base_encode : make recon_frames_ref optional
  Vulkan supports some stupidly odd hardware, that unfortunately,
  
  most modern GPUs happen to be.
  
  The DPB images for encoders may be required to be preallocated
  
  all at once, and rather than be individual frames, be layers of
  
  a single frame.
  As the hw_base_encode code is written with the thought that either
  
  the driver or the device itself supports sane image allocation,
  
  Vulkan does not leave us with this option.
  So, in the case that the hardware does not support individual
  
  frames to be used as DPBs, make the DBP frames context optional,
  
  and let the subsystem manage this.
  

  • [DH] libavcodec/hw_base_encode.c

• ffmpeg : concatinating files creates audio artefacts

  28 octobre 2022, par LML

  I'm currently trying to create a video out of multiple short video files. However, the final video always has audio artefacts, where it sounds like a short high pitch or echo at certain times during the audio. All the audio is a text-to-speech generated voice. No music. The artefacts appear sometimes more, sometimes less. But I would obviously prefer to have 0 of it.

  


  My starting point is a long audio file (mono with audio codec "mp3" according to ffprobe). Within that file are a bunch of short pauses of 4-5 seconds. I detect the silences and create individual audio files from there. Afterwards I create an mp4 file with this audio and a still image. Up to this point, the audio is perfectly fine and sounds the exact same as in the original file.

  


  After this I want to create the final video : each of the individual parts added into one long video. There is a transition between each file to mark the changing of image and audio. But even when skipping the transition and simply adding all of these clips that were generated the same way together, the artefacts are still present.

  


  The commands I use to create the different files.

  


  Create individual audio files :
.\ffmpeg.exe -y -hide_banner -i TTSAudio.mp3 -ss 359.944 -to 372.02479 -c copy partXY.mp3

  


  Create individual video files by using a .png file as the video stream and the partXY.mp3 as the audio stream :
.\ffmpeg.exe -y -hide_banner -framerate 30 -loop 1 -i XY_full.png -i partXY.mp3 -c:v libx265 -c:a copy -shortest partXY.mp4

  


  For concatenating the files :
.\ffmpeg.exe -y -hide_banner -i part000.mp4 -i part001.mp4 -i part002.mp4 -filter_complex "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a] concat=n=3:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" -c:v copy -c:a copy final_video.mp4

  


  I've tried a lot of different things and codecs for the audio, without any luck. I use h265, as using h264 was causing weird video artefacts after uploading the file to YouTube.
I have tried reencoding, instead of copying (-c:a copy) at various stages, especially the final video. All without any luck.
I've used the different concatenation where you provide a list of files, which created a whole different set of problems.

  


  I've managed to filter the artefacts out by using -af "lowpass=f=2800", but that changes the voice a lot. I was also not able to notice the pitch visually when opening the audio in audacity, for example.

  


  Example :
https://soundcloud.com/thelml/sets/ffmpeg-audio-artefacts/s-LNr6UaMPgz9?si=f7b30e1e64bf4333ad055fa1fe21e9ec
Due to the files being so short, I seem to have to sometimes have to replay the bugged file to hear the artefact.

  


  So my question is : how do I fix this, without using a lowpass that basically changes the whole voice ?