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• Need help to compile FFmpeg with MSVC tools

  30 janvier 2018, par Antwane

  I need to compile FFmpeg on Windows 10 using MSVC 2017 compiler. I followed some guides from :

  • https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC
  • https://www.ffmpeg.org/platform.html#Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows
  • https://pracucci.com/compile-ffmpeg-on-windows-with-visual-studio-compiler.html

  I installed current stable version of MSYS, fixed link.exe and use of PATH environment, installed make diffutils gcc pkg-config and downloaded c99-to-c89, nasm, and inttypes.h

  I think my environment is now correctly set up, I ran MSYS shell from MSVC Command prompt and have everything reachable.

  $ which cl
  
  /c/Program Files (x86)/Microsoft Visual Studio/2017/Professional/VC/Tools/MSVC/14.12.25827/bin/HostX64/x64/cl
  
  
  
  $ which link
  
  /c/Program Files (x86)/Microsoft Visual Studio/2017/Professional/VC/Tools/MSVC/14.12.25827/bin/HostX64/x64/link
  
  
  
  $ which yasm
  
  /home/Antoine/bin/yasm
  
  
  
  $ which c99conv
  
  /home/Antoine/bin/c99conv
  
  
  
  $ which c99wrap
  
  /home/Antoine/bin/c99wrap

  Now I configure the build

  $ ./configure --toolchain=msvc
  
  install prefix            /usr/local
  
  source path               .
  
  C compiler                cl
  
  C library                 msvcrt
  
  ARCH                      x86 (generic)
  
  big-endian                no
  
  runtime cpu detection     yes
  
  standalone assembly       yes
  
  x86 assembler             nasm
  
  MMX enabled               yes
  
  MMXEXT enabled            yes
  
  3DNow! enabled            yes
  
  3DNow! extended enabled   yes
  
  SSE enabled               yes
  
  SSSE3 enabled             yes
  
  AESNI enabled             yes
  
  AVX enabled               yes
  
  AVX2 enabled              yes
  
  XOP enabled               yes
  
  FMA3 enabled              yes
  
  FMA4 enabled              yes
  
  i686 features enabled     yes
  
  CMOV is fast              yes
  
  EBX available             no
  
  EBP available             no
  
  debug symbols             yes
  
  strip symbols             no
  
  optimize for size         no
  
  optimizations             yes
  
  static                    yes
  
  shared                    no
  
  postprocessing support    no
  
  network support           yes
  
  threading support         w32threads
  
  safe bitstream reader     yes
  
  texi2html enabled         no
  
  perl enabled              no
  
  pod2man enabled           no
  
  makeinfo enabled          no
  
  makeinfo supports HTML    no
  
  
  
  External libraries:
  
  schannel                 xlib
  
  
  
  External libraries providing hardware acceleration:
  
  cuda                     cuvid                    d3d11va                  dxva2                    nvenc
  
  
  
  Libraries:
  
  avcodec                  avdevice                 avfilter                 avformat                 avutil                   swresample               swscale
  
  
  
  Programs:
  
  ffmpeg                   ffprobe
  
  
  
  [...]
  
  Hundreds of modules, library, etc.
  
  [...]
  
  
  
  License: LGPL version 2.1 or later
  
  Creating configuration files ...
  
  config.h is unchanged
  
  config.asm is unchanged
  
  libavutil/avconfig.h is unchanged
  
  libavcodec/bsf_list.c is unchanged
  
  libavformat/protocol_list.c is unchanged

  But when I run make it stops very quickly

  $ make
  
  Makefile:47: la cible « qt-faststart » ne correspond pas au motif de cible
  
  Makefile:47: la cible « trasher » ne correspond pas au motif de cible
  
  Makefile:47: la cible « uncoded_frame » ne correspond pas au motif de cible
  
  Makefile:91: ffbuild/library.mak: No such file or directory
  
  make: *** Aucune règle pour fabriquer la cible « ffbuild/library.mak ». Arrêt.

  Sorry for the french wording, I don’t know how to tell MSVC print its output in english. Basically, the error means :

  Makefile:47: target « qt-faststart » doesn't match the target pattern
  
  make: *** No rule to make target « ffbuild/library.mak ». Stopped.

  Side notes :

  $ tree ffbuild
  
  ffbuild
  
  ├── config.fate
  
  ├── config.log
  
  ├── config.mak
  
  └── config.sh

  That’s right, library.mak were not generated into ffbuild, but I don’t know why, and configure script didn’t output any error message...

  Does anybody can help me to find out what am I doing wrong ?

  Edit :

  make distclean doesn’t help

  $ make distclean
  
  Makefile:47: la cible « qt-faststart » ne correspond pas au motif de cible
  
  Makefile:47: la cible « trasher » ne correspond pas au motif de cible
  
  Makefile:47: la cible « uncoded_frame » ne correspond pas au motif de cible
  
  Makefile:91: ffbuild/library.mak: No such file or directory
  
  make: *** Aucune règle pour fabriquer la cible « ffbuild/library.mak ». Arrêt.

• Set input frame rate in pygame.Camera

  14 mai 2018, par Thomas Hubregtsen

  I am trying to get an input stream from a webcam on OS X

  self.capture = pygame.camera('/dev/video{}'.format(camera),
  
                                   (640, 480), 'RGB')

  I get an error (see below), but there are 2 pieces of information that I can not really stitch together. On first sight, it looks like I do not have the correct camera (not video4linux). However, when running

  ffmpeg -f avfoundation -list_devices true -i ""

  I get it listed

  [AVFoundation input device @ 0x7fbb45700340] [1] FULL HD 1080P Webcam

  The next part of the error talks about frame rate. It appears that the frame-rate is slightly off, and that I just next to select a different frame rate. Would this be possible with pygcam ? Would this solve my problem ?

  Error :

  Traceback (most recent call last):
  
    File "webcam2.py", line 129, in <module>
  
      VideoStreaming("52.191.118.156", 5558, 1)()
  
    File "webcam2.py", line 22, in __call__
  
      with self.get_camera_context(self.camera_id) as frames:
  
    File "webcam2.py", line 89, in __enter__
  
  size=(640, 480))
  
    File "/Users/q433100/temp/brew-master/lib/python3.6/site-packages/imageio/core/functions.py", line 129, in get_reader
  
  return format.get_reader(request)
  
    File "/Users/q433100/temp/brew-master/lib/python3.6/site-packages/imageio/core/format.py", line 169, in get_reader
  
      return self.Reader(self, request)
  
    File "/Users/q433100/temp/brew-master/lib/python3.6/site-packages/imageio/core/format.py", line 218, in __init__
  
      self._open(**self.request.kwargs.copy())
  
    File "/Users/q433100/temp/brew-master/lib/python3.6/site-packages/imageio/plugins/ffmpeg.py", line 327, in _open
  
      self._load_infos()
  
    File "/Users/q433100/temp/brew-master/lib/python3.6/site-packages/imageio/plugins/ffmpeg.py", line 476, in _load_infos
  
      (self.request._video, ffmpeg_err))
  
  IndexError: No video4linux camera at <video1>.
  
  
  
  FFMPEG STDERR OUTPUT:
  
  
  
  ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  
    configuration: --prefix=/Users/q433100/temp/brew-master/Cellar/ffmpeg/3.4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
    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
  
  [avfoundation @ 0x7fbb9e000a00] Selected framerate (29.970030) is not supported by the device
  
  [avfoundation @ 0x7fbb9e000a00] Supported modes:
  
  [avfoundation @ 0x7fbb9e000a00]   160x120@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   176x144@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   320x240@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   352x288@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   640x360@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   640x480@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   800x600@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   1024x576@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   960x720@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   1280x720@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   1392x768@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   1280x960@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   1600x896@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   1920x1080@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   160x120@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   176x144@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   320x240@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   352x288@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   640x360@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   640x480@[30.000030 30.000030]fps
  
  [avfoundation @ 0x7fbb9e000a00]   800x600@[20.000000 20.000000]fps
  
  [avfoundation @ 0x7fbb9e000a00]   1024x576@[8.000000 8.000000]fps
  
  [avfoundation @ 0x7fbb9e000a00]   960x720@[15.000015 15.000015]fps
  
  1: Input/output error
  
  </video1></module>

  Update :
  If I try to force one of the mentioned supported frame rates with ffmped, I get a new error

  $ffmpeg -f avfoundation -r 30.000030 -i "1" out.mpg
  
  ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  
    configuration: --prefix=/Users/q433100/temp/brew-master/Cellar/ffmpeg/3.4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
    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
  
  [avfoundation @ 0x7fb3c8802600] An error occurred: The activeVideoMinFrameDuration passed is not supported by the device.  Use -activeFormat.videoSupportedFrameRateRanges to discover valid ranges.1: Input/output error

  Update 2 :
  Setting the input frame rate to 15 directly in ffmpeg works. Now I just need to figure out how to do this in python with pygame.camera

  $ ffmpeg -f avfoundation -r 15.000015 -i "1" out.avi

• Multiple extra-cflags of a makefile

  24 octobre 2020, par lulliezy

  so there is this library am trying to use ffmpeg.js and am customizing the Makefile. I have done everything that I wanted to do but on building, I got the error ERROR: opus not found using pkg-config. Now I have two problems :

  


  --extra-cflags="-s USE_ZLIB=1 -I../lame/dist/include -I../libvpx/dist/include" this configuration was initially --extra-cflags="-s USE_ZLIB=1 -I../lame/dist/include" but I wanted to include two folders, so is the merging correct or that's where I went wrong.

  


  The complete Makefile is as below (there are alot of changes from the original one from the repository), is there anything I did wrong ?

  


  PRE_JS = build/pre.js
POST_JS_SYNC = build/post-sync.js

COMMON_FILTERS = aresample scale crop overlay hstack vstack
COMMON_DEMUXERS = matroska ogg mov mp3 wav image2 concat
COMMON_DECODERS = vp8 vp9 h264 vorbis opus mp3 aac pcm_s16le mjpeg png

COMMON_BSFS = vp9_superframe

MUXERS = mp4 mp3 webm ogg null
ENCODERS = libx264 libmp3lame aac libvpx_vp8 libopus
FFMPEG_BC = build/ffmpeg/ffmpeg.bc
FFMPEG_PC_PATH = ../x264/dist/lib/pkgconfig
SHARED_DEPS = \
    build/lame/dist/lib/libmp3lame.so \
    build/x264/dist/lib/libx264.so \
    build/opus/dist/lib/libopus.so \
    build/libvpx/dist/lib/libvpx.so

all: ffmpeg.js

clean: clean-js \
    clean-opus clean-libvpx clean-lame \
    clean-x264 clean-ffmpeg
clean-js:
    rm -f ffmpeg*.js
clean-opus:
    cd build/opus && git clean -xdf
clean-libvpx:
    cd build/libvpx && git clean -xdf
clean-lame:
    cd build/lame && git clean -xdf
clean-x264:
    cd build/x264 && git clean -xdf
clean-ffmpeg:
    cd build/ffmpeg-mp4 && git clean -xdf

build/opus/configure:
    cd build/opus && ./autogen.sh

build/opus/dist/lib/libopus.so: build/opus/configure
    cd build/opus && \
    emconfigure ./configure \
        CFLAGS=-O3 \
        --prefix="$$(pwd)/dist" \
        --disable-static \
        --disable-doc \
        --disable-extra-programs \
        --disable-asm \
        --disable-rtcd \
        --disable-intrinsics \
        --disable-hardening \
        --disable-stack-protector \
        && \
    emmake make -j && \
    emmake make install

build/libvpx/dist/lib/libvpx.so:
    cd build/libvpx && \
    git reset --hard && \
    patch -p1 < ../libvpx-fix-ld.patch && \
    emconfigure ./configure \
        --prefix="$$(pwd)/dist" \
        --target=generic-gnu \
        --disable-dependency-tracking \
        --disable-multithread \
        --disable-runtime-cpu-detect \
        --enable-shared \
        --disable-static \
        \
        --disable-examples \
        --disable-docs \
        --disable-unit-tests \
        --disable-webm-io \
        --disable-libyuv \
        --disable-vp8-decoder \
        --disable-vp9 \
        && \
    emmake make -j && \
    emmake make install

build/lame/dist/lib/libmp3lame.so:
    cd build/lame/lame && \
    git reset --hard && \
    patch -p2 < ../../lame-fix-ld.patch && \
    emconfigure ./configure \
        CFLAGS="-DNDEBUG -O3" \
        --prefix="$$(pwd)/../dist" \
        --host=x86-none-linux \
        --disable-static \
        \
        --disable-gtktest \
        --disable-analyzer-hooks \
        --disable-decoder \
        --disable-frontend \
        && \
    emmake make -j && \
    emmake make install

build/x264/dist/lib/libx264.so:
    cd build/x264 && \
    emconfigure ./configure \
        --prefix="$$(pwd)/dist" \
        --extra-cflags="-Wno-unknown-warning-option" \
        --host=x86-none-linux \
        --disable-cli \
        --enable-shared \
        --disable-opencl \
        --disable-thread \
        --disable-interlaced \
        --bit-depth=8 \
        --chroma-format=420 \
        --disable-asm \
        \
        --disable-avs \
        --disable-swscale \
        --disable-lavf \
        --disable-ffms \
        --disable-gpac \
        --disable-lsmash \
        && \
    emmake make -j && \
    emmake make install

FFMPEG_COMMON_ARGS = \
    --cc=emcc \
    --ranlib=emranlib \
    --enable-cross-compile \
    --target-os=none \
    --arch=x86 \
    --disable-runtime-cpudetect \
    --disable-asm \
    --disable-fast-unaligned \
    --disable-pthreads \
    --disable-w32threads \
    --disable-os2threads \
    --disable-debug \
    --disable-stripping \
    --disable-safe-bitstream-reader \
    \
    --disable-all \
    --enable-ffmpeg \
    --enable-avcodec \
    --enable-avformat \
    --enable-avfilter \
    --enable-swresample \
    --enable-swscale \
    --disable-network \
    --disable-d3d11va \
    --disable-dxva2 \
    --disable-vaapi \
    --disable-vdpau \
    $(addprefix --enable-bsf=,$(COMMON_BSFS)) \
    $(addprefix --enable-decoder=,$(COMMON_DECODERS)) \
    $(addprefix --enable-demuxer=,$(COMMON_DEMUXERS)) \
    --enable-protocol=file \
    $(addprefix --enable-filter=,$(COMMON_FILTERS)) \
    --disable-bzlib \
    --disable-iconv \
    --disable-libxcb \
    --disable-lzma \
    --disable-sdl2 \
    --disable-securetransport \
    --disable-xlib \
    --enable-zlib

build/ffmpeg/ffmpeg.bc: $(SHARED_DEPS)
    cd build/ffmpeg-mp4 && \
    EM_PKG_CONFIG_PATH=$(FFMPEG_PC_PATH) emconfigure ./configure \
        $(FFMPEG_COMMON_ARGS) \
        $(addprefix --enable-encoder=,$(ENCODERS)) \
        $(addprefix --enable-muxer=,$(MUXERS)) \
        --enable-gpl \
        --enable-libmp3lame \
        --enable-libx264 \
        --enable-libopus \
        --enable-libvpx \
        --extra-cflags="-s USE_ZLIB=1 -I../lame/dist/include -I../libvpx/dist/include" \
        --extra-ldflags="-L../lame/dist/lib -L../libvpx/dist/lib" \
        && \
    emmake make -j && \
    cp ffmpeg ffmpeg.bc

EMCC_COMMON_ARGS = \
    -O3 \
    --closure 1 \
    --memory-init-file 0 \
    -s WASM=0 \
    -s WASM_ASYNC_COMPILATION=0 \
    -s ASSERTIONS=0 \
    -s EXIT_RUNTIME=1 \
    -s NODEJS_CATCH_EXIT=0 \
    -s NODEJS_CATCH_REJECTION=0 \
    -s TOTAL_MEMORY=67108864 \
    -lnodefs.js -lworkerfs.js \
    --pre-js $(PRE_JS) \
    -o $@

ffmpeg.js: $(FFMPEG_BC) $(PRE_JS) $(POST_JS_SYNC)
    emcc $(FFMPEG_BC) $(SHARED_DEPS) \
        --post-js $(POST_JS_SYNC) \
        $(EMCC_COMMON_ARGS) -O2


  


  What I was trying to achieve was combine some of the webm encoders and muxers into the mp4 module so I use only that one module for all webm and mp4 format types.

  


  Also one thing to know about me, the whole Makefile and C and building it is totally new territory for me, I just did what I thought was right, thanks in advance.