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• libavfilter/libmpcodecs : sync existing filters with mplayer HEAD (ebcacb8b3ca91ef90ac...

  3 mai 2014, par mplayer developers

  libavfilter/libmpcodecs : sync existing filters with mplayer HEAD (ebcacb8b3ca91ef90acb93785b62fd8c5e5dae41)
  Authors from svn :
  
  cehoyos (2) :
  
        Support playback of JPEG 2000 digital cinema files.
  
        Add name for image format IMGFMT_440P.
  ib (1) :
  
        Get rid of VOCTRL_GUI_NOWINDOW.
  Matt Oliver (4) :
  
        Fix libmpcodecs inline asm on ICL.
  
        Use DECLARE_ALIGNED helper macros.
  
        Remove some superfluous commas from inline asm for better compatibility.
  
        Use numeric labels in inline asm for consistency and better     compatibility.
  reimar (10) :
  
        Fix bpp calculation for XYZ format.
  
        Avoid duplicating the mouse autohide code.
  
        Add NV12/NV21 support to some helper functions.
  
        Add support for rotating the video via OpenGL.
  
        Add options to determine where borders will be added when adjusting for aspect.
  
        Apply forgotten move of apply_border_pos function.
  
        Extract window creation code to common file.
  
        Make VDPAU support work again with latest FFmpeg.
  
        img_format : document why mp_get_chroma_shift does not work for NV12/NV21
  
        Minor spelling/grammar fixes.
  For detailed line by line authorship please see svn log of mplayer
  
  svn ://svn.mplayerhq.hu/mplayer/trunk
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavfilter/libmpcodecs/img_format.c
  • [DH] libavfilter/libmpcodecs/img_format.h
  • [DH] libavfilter/libmpcodecs/libvo/video_out.h
  • [DH] libavfilter/libmpcodecs/mp_image.c
  • [DH] libavfilter/libmpcodecs/vf_fspp.c
  • [DH] libavfilter/libmpcodecs/vf_ilpack.c
  • [DH] libavfilter/libmpcodecs/vf_pp7.c
  • [DH] libavfilter/libmpcodecs/vf_uspp.c

• Trying to scale a webm video to 50% of its resolution using FFMPEG but keep getting an error (video has transparency btw)

  6 février 2021, par DistantDigit

  I'm trying to scale down a webm video with transparency using this line of commands (based off of an answer in this stackoverflow question @ How to keep transparency when scale webm file with ffmpeg) :

  


  ffmpeg -c:v libvpx -i in.webm -c:v libvpx -vf scale=400:416 -auto-alt-ref 0 out.webm

  


  but I keep getting errors (for example) :

  


  [libvpx @ 00000128eb6123c0] Invalid sync code 310042.
[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder
Cannot determine format of input stream 0:0 after EOF


  


  Full log (I've removed a ton of the same exact message with "..."'s) :

  


  ffmpeg version 2021-02-02-git-2367affc2c-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 64.100 / 56. 64.100
  libavcodec     58.120.100 / 58.120.100
  libavformat    58. 65.101 / 58. 65.101
  libavdevice    58. 11.103 / 58. 11.103
  libavfilter     7.101.100 /  7.101.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
[libvpx @ 00000128eb6123c0] v1.9.0-146-gebb5ffc1d
[libvpx @ 00000128eb6123c0] Invalid sync code 310042.
[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder
[libvpx @ 00000128eb6123c0] Invalid sync code 007a49.
[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder
[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.
[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder
...
...
...
[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.
[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder
[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.
[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder
[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.
[libvpx @ 00000128eb6123c0] Failed to decode frame: Bitstream not supported by this decoder
[libvpx @ 00000128eb6123c0] Invalid sync code 01f096.
[matroska,webm @ 00000128eb60f040] decoding for stream 0 failed
[matroska,webm @ 00000128eb60f040] Could not find codec parameters for stream 0 (Video: vp8 (libvpx), none(progressive), 800x832): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, matroska,webm, from 'in.webm':
  Metadata:
    encoder         : libwebm-0.2.1.0
    creation_time   : 2017-12-02T12:06:12.000000Z
  Duration: 00:00:10.00, start: 0.000000, bitrate: 2592 kb/s
    Stream #0:0(eng): Video: vp8, none(progressive), 800x832, SAR 1:1 DAR 25:26, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      alpha_mode      : 1
[libvpx @ 00000128eb612a40] v1.9.0-146-gebb5ffc1d
Stream mapping:
  Stream #0:0 -> #0:0 (vp8 (libvpx) -> vp8 (libvpx))
Press [q] to stop, [?] for help
[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder
Error while decoding stream #0:0: Invalid data found when processing input
[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder
Error while decoding stream #0:0: Invalid data found when processing input
[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder
...
...
...
Error while decoding stream #0:0: Invalid data found when processing input
[NULL @ 00000128eb6123c0] Invalid sync code 01f096.
[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder
Error while decoding stream #0:0: Invalid data found when processing input
[NULL @ 00000128eb6123c0] Invalid sync code 01f096.
[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder
Error while decoding stream #0:0: Invalid data found when processing input
[NULL @ 00000128eb6123c0] Invalid sync code 009c96.
[libvpx @ 00000128eb612a40] Failed to decode frame: Bitstream not supported by this decoder
Error while decoding stream #0:0: Invalid data found when processing input
Cannot determine format of input stream 0:0 after EOF
Error marking filters as finished
Conversion failed!


  


  Log of ffmpeg -i input.webm :

  


  ffmpeg version 2021-02-02-git-2367affc2c-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 64.100 / 56. 64.100
  libavcodec     58.120.100 / 58.120.100
  libavformat    58. 65.101 / 58. 65.101
  libavdevice    58. 11.103 / 58. 11.103
  libavfilter     7.101.100 /  7.101.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, matroska,webm, from 'input.webm':
  Metadata:
    encoder         : libwebm-0.2.1.0
    creation_time   : 2017-12-02T12:06:12.000000Z
  Duration: 00:00:10.00, start: 0.000000, bitrate: 2592 kb/s
    Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv), 800x832, SAR 1:1 DAR 25:26, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      alpha_mode      : 1
At least one output file must be specified


  


• ffmpeg how to trigger color changes based on time

  2 janvier 2021, par Plazar99

  My goal is to modify the color of an image overlay at specific times in a video file.
I use AI to determine the emotion of the subtitles, and change the background color based on emotions.
I've already figured out the subtitle.srt usage, and I know when to trigger which color.
I need a clue on how to do it in ffmpeg.