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• ffmpeg command to use font on subtitle still uses the default one

  3 août 2023, par mika

  my command in python :

  


  ffmpegCommandAddSub = [
    'ffmpeg', '-i', input_video, '-vf', f"subtitles={input_srt}:force_style='Fontfile=Borel-Regular.ttf:fontsdir=./'",
    '-c:v', 'libx264', '-c:a', 'copy', output_video
]


  


  Borel-Regular.ttf is in the same folder as the python code

  


  the font is not applied to the subtitle. what am I doing wrong or didn't pay attention ?

  


  FFMPEG -version :

  


  ffmpeg version N-111432-g374184a4dc-20230714 Copyright (c) 2000-2023 the FFmpeg 

developers
built with gcc 13.1.0 (crosstool-NG 1.25.0.196_227d99d)
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype 
--enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libvpl --enable-openal --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20230714
libavutil      58. 14.100 / 58. 14.100
libavcodec     60. 22.100 / 60. 22.100
libavformat    60. 10.100 / 60. 10.100
libavdevice    60.  2.101 / 60.  2.101
libavfilter     9.  8.102 /  9.  8.102
libswscale      7.  3.100 /  7.  3.100
libswresample   4. 11.100 /  4. 11.100
libpostproc    57.  2.100 / 57.  2.100


  


• The error "Failed to query nvenc max version" typically occurs when using FFmpeg on Linux

  28 juillet 2023, par Well Chen

  The error "Failed to query nvenc max version" typically occurs when using FFmpeg with NVIDIA GPU acceleration (hevc_nvenc) on Linux.

  


  Does anyone know how to solve this bug ? Thank you very much.

  


  The following code is the FFmpeg code I entered, along with the output content.

  


  ffmpeg -ss 10:00 -i /www/wwwroot/pyffmpeg/videos/0/011.mp4 -t 20 -r 30 -b:v 4M -an -vcodec hevc_nvenc -y /www/wwwroot/pyffmpeg/videos/post/999.mp4
ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 8 (GCC)
  configuration: --extra-cflags='-I/usr/local/cuda/include -fPIC ' --extra-ldflags='-L/usr/local/cuda/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-cuvid --enable-nvenc --enable-nonfree --nvcc='nvcc=/usr/local/cuda-12.2/bin/nvcc'
  WARNING: library configuration mismatch
  avutil      configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  avcodec     configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  avformat    configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  avdevice    configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  avfilter    configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  swscale     configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  swresample  configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  postproc    configuration: --extra-cflags='-I/usr/local/cuda-12.2/include -fPIC ' --extra-ldflags='-L/usr/local/cuda-12.2/lib64 -ldl ' --pkg-config-flags=--static --enable-shared --enable-gpl --enable-libfreetype --enable-cuvid --enable-nvenc --enable-nonfree --nvcc=/usr/local/cuda-12.2/bin/nvcc --prefix=/usr/local/ffmpeg
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/www/wwwroot/pyffmpeg/videos/0/011.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf59.6.100
  Duration: 00:17:48.83, start: 0.000000, bitrate: 4617 kb/s
  Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt470bg/bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 4481 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc.
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc.
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (hevc_nvenc))
Press [q] to stop, [?] for help
[hevc_nvenc @ 0x2a577790] Failed to query nvenc max version: unknown error (-756041696): (no details)
Segmentation faul


  


  I have installed FFmpeg, NVIDIA GPU drivers, and SDK. It works fine without using GPU acceleration, but it throws an error when using GPU acceleration.

  


• MP4 to HLS conversion error after resizing video using FFmpeg

  26 juillet 2023, par ITeptIcklyTa

  When trying to create HLS stream from original video, FFmpeg creates HLS stream without errors.

  


  ~ $ ffmpeg -i test.mp4 -f hls -hls_time 3 -hls_segment_filename seg%02d.ts stream.m3u8


  


  But when I resize video using this command, I get a timestamps warning :

  


  ~ $ ffmpeg -i test.mp4 -vf scale=426:240 test_240p.mp4
[mp4 @ 0xb400007429e52d00] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[mp4 @ 0xb400007429e52d00] Encoder did not produce proper pts, making some up.


  


  And when creating HLS stream from resized video, I'm getting an error :

  


  ~ $ ffmpeg -i test_240p.mp4 -f hls -hls_time 3 -hls_segment_filename seg%02d.ts stream.m3u8                     ffmpeg version N-111626-g0ba719f726 Copyright (c) 2000-2023 the FFmpeg developers
  built with clang version 16.0.6
  configuration: --arch=aarch64 --as=aarch64-linux-android-clang --cc=aarch64-linux-android-clang --cxx=aarch64-linux-android-clang++ --nm=llvm-nm --pkg-config=/data/data/com.termux/files/usr/bin/pkg-config --strip=llvm-strip --cross-prefix=aarch64-linux-android- --disable-indevs --disable-outdevs --enable-indev=lavfi --disable-static --disable-symver --enable-cross-compile --enable-gnutls --enable-gpl --enable-jni --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgme --enable-libmp3lame --enable-libopus --enable-librav1e --enable-libsoxr --enable-libsrt --enable-libssh --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-mediacodec --enable-opencl --enable-shared --prefix=/data/data/com.termux/files/usr --target-os=android --extra-libs=-landroid-glob --disable-vulkan --enable-neon --disable-libfdk-aac                                                      libavutil      58. 14.100 / 58. 14.100                  libavcodec     60. 22.100 / 60. 22.100
  libavformat    60. 10.100 / 60. 10.100                  libavdevice    60.  2.101 / 60.  2.101
  libavfilter     9. 10.100 /  9. 10.100
  libswscale      7.  3.100 /  7.  3.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_240p.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.10.100
  Duration: 00:00:10.01, start: 0.000000, bitrate: 178 kb/s
  Stream #0:0[0x1](und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/smpte170m, progressive), 426x240, 44 kb/s, SAR 640:639 DAR 16:9, 25 fps, 25 tbr, 12800 tbn (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.22.100 h264_mediacodec
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_mediacodec))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[h264_mediacodec @ 0xb400007da1f2ac00] Use 1 as the default MediaFormat i-frame-interval, please set gop_size properly (>= fps)
[h264_mediacodec @ 0xb400007da1f2ac00] Mediacodec encoder doesn't support AV_CODEC_FLAG_GLOBAL_HEADER. Use extract_extradata bsf when necessary.
Output #0, hls, to 'stream.m3u8':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf60.10.100
  Stream #0:0(und): Video: h264, yuv420p(tv, bt709/bt709/smpte170m, progressive), 426x240 [SAR 640:639 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 90k tbn (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.22.100 h264_mediacodec
  Stream #0:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc. Created on: 02/24/2023.
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.22.100 aac
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.25 bitr[hls @ 0xb400007da1f27d00] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[hls @ 0xb400007da1f27d00] Encoder did not produce proper pts, making some up.
[mpegts @ 0xb400007da1f29100] H.264 bitstream error, startcode missing, size 0
[hls @ 0xb400007da1f27d00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 3600 >= 3600
[vost#0:0/h264_mediacodec @ 0xb400007da200a000] Error submitting a packet to the muxer: Invalid argument
[out#0/hls @ 0xb400007da1eaa6c0] Error muxing a packet
[hls @ 0xb400007da1f27d00] Opening 'seg00.ts' for writing
[hls @ 0xb400007da1f27d00] Opening 'stream.m3u8.tmp' for writing
[out#0/hls @ 0xb400007da1eaa6c0] video:2kB audio:5kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
frame=    3 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.41 bitrate=N/A speed=3.39x
[aac @ 0xb400007da2051400] Qavg: 32468.840
Conversion failed!
~ $


  


  I tried to build FFmpeg from GitHub and install FFmpeg from repositories, and I'm still getting this error.