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• Error in building FFMPEG-3.4 with Android-NDK-16.1

  30 avril 2018, par Sagar Trehan

  Trying to compile the FFMPEG-3.4 with Android-NDK-16.1.

  Compiling the source on Mac.

  Getting below Warnings/Errors :

  1. WARNING : /Users/strehan/Library/Android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.

  2. Error : In file included from libavdevice/avdevice.c:19:0 :./libavutil/avassert.h:30:20 : fatal error : stdlib.h : No such file or directory

  3. Error : /Users/strehan/Library/Android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/include/stdint.h:9:26 : fatal error : stdint.h : No such file or directory

  4. Error : /libavutil/common.h:33:19 : fatal error : errno.h : No such file or directory

  Below is the build_script.sh using for build :

  #!/bin/bash
  
  NDK=/Users/strehan/Library/Android/sdk/ndk-bundle
  
  SYSROOT=$NDK/platforms/android-21/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
  
  function build_one
  
  {
  
  ./configure \
  
  --prefix=$PREFIX \
  
  --enable-shared \
  
  --disable-static \
  
  --disable-doc \
  
  --disable-ffmpeg \
  
  --disable-ffplay \
  
  --disable-ffprobe \
  
  --disable-doc \
  
  --disable-symver \
  
  --enable-protocol=concat \
  
  --enable-protocol=file \
  
  --enable-muxer=mp4 \
  
  --enable-demuxer=mpegts \
  
  --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
  --target-os=linux \
  
  --arch=arm \
  
  --enable-cross-compile \
  
  --sysroot=$SYSROOT \
  
  --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
  --extra-ldflags="$ADDI_LDFLAGS" \
  
  $ADDITIONAL_CONFIGURE_FLAG
  
  make clean
  
  make -j3
  
  make install
  
  }
  
  CPU=arm
  
  PREFIX=$(pwd)/android/$CPU
  
  ADDI_CFLAGS="-marm"
  
  build_one

  Terminal output :

  Enabled indevs:
  
  lavfi
  
  
  
  Enabled outdevs:
  
  
  
  License: LGPL version 2.1 or later
  
  
  
  WARNING: /Users/strehan/Library/Android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
  
  config.h is unchanged
  
  libavutil/avconfig.h is unchanged
  
  libavcodec/bsf_list.c is unchanged
  
  libavformat/protocol_list.c is unchanged
  
  ffbuild/config.sh is unchanged
  
  GEN libavutil/libavutil.version
  
  GEN libswscale/libswscale.version
  
  GEN libswresample/libswresample.version
  
  GEN libavcodec/libavcodec.version
  
  GEN libavformat/libavformat.version
  
  GEN libavfilter/libavfilter.version
  
  GEN libavdevice/libavdevice.version
  
  CC  libavdevice/alldevices.o
  
  CC  libavdevice/avdevice.o
  
  CC  libavdevice/lavfi.o
  
  In file included from libavdevice/avdevice.c:19:0:
  
  ./libavutil/avassert.h:30:20: fatal error: stdlib.h: No such file or directory
  
   #include 
  
                      ^
  
  compilation terminated.
  
  make: *** [libavdevice/avdevice.o] Error 1
  
  make: *** Waiting for unfinished jobs....
  
  In file included from ./libavutil/avutil.h:296:0,
  
                   from ./libavutil/log.h:25,
  
                   from libavdevice/avdevice.h:48,
  
                   from libavdevice/alldevices.c:23:
  
  ./libavutil/common.h:33:19: fatal error: errno.h: No such file or directory
  
   #include 
  
                     ^
  
  compilation terminated.
  
  In file included from ./libavutil/avstring.h:25:0,
  
                   from ./libavutil/bprint.h:27,
  
                   from libavdevice/lavfi.c:30:
  
  /Users/strehan/Library/Android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/include/stdint.h:9:26: fatal error: stdint.h: No such file or directory
  
   # include_next 
  
                            ^
  
  make: *** [libavdevice/alldevices.o] Error 1
  
  compilation terminated.
  
  make: *** [libavdevice/lavfi.o] Error 1
  
  INSTALL doc/examples/avio_dir_cmd.c
  
  INSTALL doc/examples/avio_reading.c
  
  INSTALL doc/examples/decode_audio.c
  
  INSTALL doc/examples/decode_video.c
  
  INSTALL doc/examples/demuxing_decoding.c
  
  INSTALL doc/examples/encode_audio.c
  
  INSTALL doc/examples/encode_video.c
  
  INSTALL doc/examples/extract_mvs.c
  
  INSTALL doc/examples/filter_audio.c
  
  INSTALL doc/examples/filtering_audio.c
  
  INSTALL doc/examples/filtering_video.c
  
  INSTALL doc/examples/http_multiclient.c
  
  INSTALL doc/examples/hw_decode.c
  
  INSTALL doc/examples/metadata.c
  
  INSTALL doc/examples/muxing.c
  
  INSTALL doc/examples/qsvdec.c
  
  INSTALL doc/examples/remuxing.c
  
  INSTALL doc/examples/resampling_audio.c
  
  INSTALL doc/examples/scaling_video.c
  
  INSTALL doc/examples/transcode_aac.c
  
  INSTALL doc/examples/transcoding.c
  
  INSTALL doc/examples/vaapi_encode.c
  
  INSTALL doc/examples/README
  
  INSTALL doc/examples/Makefile
  
  INSTALL doc/examples/avio_dir_cmd.c
  
  INSTALL doc/examples/avio_reading.c
  
  INSTALL doc/examples/decode_audio.c
  
  INSTALL doc/examples/decode_video.c
  
  INSTALL doc/examples/demuxing_decoding.c
  
  INSTALL doc/examples/encode_audio.c
  
  INSTALL doc/examples/encode_video.c
  
  INSTALL doc/examples/extract_mvs.c
  
  INSTALL doc/examples/filter_audio.c
  
  INSTALL doc/examples/filtering_audio.c
  
  INSTALL doc/examples/filtering_video.c
  
  INSTALL doc/examples/http_multiclient.c
  
  INSTALL doc/examples/hw_decode.c
  
  INSTALL doc/examples/metadata.c
  
  INSTALL doc/examples/muxing.c
  
  INSTALL doc/examples/qsvdec.c
  
  INSTALL doc/examples/remuxing.c
  
  INSTALL doc/examples/resampling_audio.c
  
  INSTALL doc/examples/scaling_video.c
  
  INSTALL doc/examples/transcode_aac.c
  
  INSTALL doc/examples/transcoding.c
  
  INSTALL doc/examples/vaapi_encode.c
  
  INSTALL doc/examples/README
  
  INSTALL doc/examples/Makefile
  
  CC  libavdevice/alldevices.o
  
  In file included from ./libavutil/avutil.h:296:0,
  
                   from ./libavutil/log.h:25,
  
                   from libavdevice/avdevice.h:48,
  
                   from libavdevice/alldevices.c:23:
  
  ./libavutil/common.h:33:19: fatal error: errno.h: No such file or directory
  
   #include 
  
                     ^
  
  compilation terminated.
  
  make: *** [libavdevice/alldevices.o] Error 1

  Please help to fix these errors. Due to these errors/warnings compilation is getting terminated.

  Note :
  Android directory is getting created even after these errors. But I think library is not compiled properly due to above errors.

  Let me know if anything else needed. Please help.

• Multiple nVidia GPU transcoding (NOT computing) bottleneck

  11 décembre 2018, par Daniel Cantarin

  I’m doing some nVidia multi-GPU testing. However, this tests are not on the computing field but transcoding, using nvenc/nvdec.

  I have a setup with 3 Quadro GPUs (max 4 on this motherboard), and running some transcoding jobs using ffmpeg.

  Thing is, up to 8 jobs everything is fine, with tolerable GPU and CPU stats.
  But when reaching the 9th job, the nVidia cards metrics start to fall down. Whats troublesome is this : it doesn’t matter the job distribution. That is, if I send 8 jobs to GPU0, and 1 job to GPU1, is the same as 4-5, or 4-4-1, or 0-4-5, etc.

  What I see beggining on the 9th job is :

  1. CPU gets to about 60% usage (30% up to 8th jobs) and doesn’t go up much after adding more jobs.
  2. DECODING metrics falls from about 75% (when single card has 8 jobs) to about 20%.
  3. Every card behaves the same when this problem starts, no matter how many jobs they have.

  And the last strange thing I see : when that problem happens, and I kill all the jobs, the cards keep working for a while (sometimes even minutes).

  All this points to some bottleneck somewhere on the motherboard. Maybe the PCIe bus, maybe some CPU subsystem, I’m not sure. It also points to some buffering happening somewhere. I’m using the usual popular tools to see high-level metrics and curves (top/htop, nvidia-smi, nvtop, etc).

  My question : does anybody knows some common bottlenecks regarding multi-GPU setups that could lead to a problem like this ?

  Any tip would be nice.

  Thanks in advance.

• Unable to install ffmpeg on CircleCi 2.0

  16 novembre 2017, par Mateusz Urbański

  I have Ruby on Rails project which uses CircleCi to run tests. In the past I was using CircleCi 1.0 but now I migrated to CircleCi 2.0. I have problem with installing ffmpeg. CircleCi 2.0 uses Ubuntu 14.04. I install ffmpeg like this :

  # ffmpeg installation
  
  sudo add-apt-repository ppa:mc3man/trusty-media -y
  
  sudo apt-get update
  
  sudo apt-get install ffmpeg

  and my circle.yml config file looks like this :

  version: 2
  
  environment:
  
    TZ: "/usr/share/zoneinfo/America/Los_Angeles"
  
  
  
  jobs:
  
    build:
  
      parallelism: 2
  
      working_directory: ~/circleci-survey-builder
  
      docker:
  
        - image: circleci/ruby:2.4.1-node
  
          environment:
  
            PGHOST: 127.0.0.1
  
            PGUSER: ubuntu
  
            RAILS_ENV: test
  
        - image: circleci/postgres:9.6-alpine
  
          environment:
  
            POSTGRES_USER: ubuntu
  
            POSTGRES_DB: circle_test
  
            POSTGRES_PASSWORD: ''
  
      steps:
  
        - checkout
  
  
  
        - run:
  
            name: 'Install CircleCI dependencies'
  
            command: bash deploy/circle-dependencies.sh
  
  
  
        - type: cache-restore
  
          key: dashboard-{{ checksum "Gemfile.lock" }}
  
  
  
        - run:
  
            name: 'Install gems'
  
            command: bundle install --path vendor/bundle
  
  
  
        - type: cache-save
  
          key: dashboard-{{ checksum "Gemfile.lock" }}
  
          paths:
  
            - vendor/bundle
  
  
  
        - run:
  
            name: 'Install postgresql-client'
  
            command: sudo apt install postgresql-client
  
  
  
        - run:
  
            name: 'Create database.yml'
  
            command: mv config/database.ci.yml config/database.yml
  
  
  
        - run:
  
            name: Set up SurveyBuilder database
  
            command: bundle exec rake db:structure:load --trace
  
  
  
        - run:
  
            name: 'Run tests'
  
            command: |
  
              bundle exec rspec spec

  It returns following error when I run build on CircleCi :

  #!/bin/bash -eo pipefail
  
  bash deploy/circle-dependencies.sh
  
  
  
  Fetching: bundler-1.16.0.gem (100%)
  
  Successfully installed bundler-1.16.0
  
  1 gem installed
  
  sudo: add-apt-repository: command not found
  
  
  
  
  
  Ign http://deb.debian.org jessie InRelease
  
  
  
  Get:1 http://deb.debian.org jessie-updates InRelease [145 kB]
  
  
  
  10% [1 InRelease 13.8 kB/145 kB 10%] [Waiting for headers] [Connecting to securHit http://deb.debian.org jessie Release.gpg
  
  
  
  Hit http://deb.debian.org jessie Release
  
  
  
  Get:2 http://deb.debian.org jessie-updates/main amd64 Packages [23.2 kB]
  
  
  
  Get:3 http://deb.debian.org jessie/main amd64 Packages [9063 kB]
  
  
  
  Get:4 http://security.debian.org jessie/updates InRelease [63.1 kB]
  
  
  
  Get:5 http://security.debian.org jessie/updates/main amd64 Packages [610 kB]
  
  
  
  100% [3 Packages 9063 kB]100% [3 Packages 9063 kB]Fetched 9904 kB in 1s (8178 kB/s)
  
  
  
  Reading package lists... 1%
  
  Reading package lists... 61%
  
  Reading package lists... Done
  
  
  
  
  
  Reading package lists... 1%
  
  Reading package lists... Done
  
  
  
  
  
  Building dependency tree... 0%
  
  Building dependency tree       
  
  
  
  
  
  Reading state information... Done
  
  
  
  Package ffmpeg is not available, but is referred to by another package.
  
  This may mean that the package is missing, has been obsoleted, or
  
  is only available from another source
  
  
  
  E: Package 'ffmpeg' has no installation candidate
  
  Exited with code 100

  How can I fix that ?