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• ffmpeg unable to save a frame at specific time

  26 mai 2020, par Gowtham

  I followed Im getting error "deprecated pixel format used, make sure you did set range correctly using ffmpeg".. can someone check my code below ? to save a frame from a video but the saved frame is of timestamp 00:00:00 instead of the given timestamp

  



  $ ffmpeg -i 001\ Introduction.mp4 -ss 00:03:12.00 -vframes 1 side_view.jpg
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.3.0 (Gentoo 9.3.0 p2)
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --docdir=/usr/share/doc/ffmpeg-4.2.2/html --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-march=native -O2 -pipe' --disable-static --enable-avfilter --enable-avresample --disable-stripping --disable-optimizations --disable-libcelt --disable-indev=oss --disable-indev=jack --disable-outdev=oss --enable-version3 --enable-nonfree --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-gcrypt --disable-gnutls --enable-gmp --enable-gpl --disable-hardcoded-tables --enable-iconv --disable-libtls --enable-libxml2 --disable-lzma --enable-network --enable-opencl --disable-openssl --enable-postproc --disable-libsmbclient --enable-ffplay --enable-sdl2 --enable-vaapi --enable-vdpau --enable-xlib --enable-libxcb --enable-libxcb-shm --enable-libxcb-xfixes --enable-zlib --disable-libcdio --disable-libiec61883 --disable-libdc1394 --disable-libcaca --disable-openal --enable-opengl --enable-libv4l2 --enable-libpulse --enable-libdrm --disable-libjack --disable-libopencore-amrwb --disable-libopencore-amrnb --disable-libcodec2 --disable-libdav1d --enable-libfdk-aac --enable-libopenjpeg --enable-libbluray --disable-libgme --disable-libgsm --disable-libaribb24 --disable-mmal --disable-libmodplug --enable-libopus --disable-libilbc --disable-librtmp --disable-libssh --disable-libspeex --enable-libsrt --enable-librsvg --disable-ffnvcodec --enable-libvorbis --enable-libvpx --disable-libzvbi --disable-appkit --disable-libbs2b --disable-chromaprint --disable-cuda-llvm --disable-libflite --disable-frei0r --disable-libfribidi --enable-fontconfig --disable-ladspa --enable-libass --disable-libtesseract --enable-lv2 --enable-libfreetype --disable-libvidstab --disable-librubberband --disable-libzmq --disable-libzimg --disable-libsoxr --enable-pthreads --disable-libvo-amrwbenc --enable-libmp3lame --disable-libkvazaar --disable-libaom --disable-libopenh264 --disable-libsnappy --enable-libtheora --disable-libtwolame --disable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --disable-armv5te --disable-armv6 --disable-armv6t2 --disable-neon --disable-vfp --disable-vfpv3 --disable-armv8 --disable-mipsdsp --disable-mipsdspr2 --disable-mipsfpu --disable-altivec --disable-amd3dnow --disable-amd3dnowext --disable-aesni --disable-avx --disable-avx2 --disable-fma3 --disable-fma4 --disable-sse3 --disable-ssse3 --disable-sse4 --disable-sse42 --disable-xop --enable-pic --cpu=host --disable-doc --disable-htmlpages --enable-manpages
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '001 Introduction.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.12.100
  Duration: 00:09:40.10, start: 0.000000, bitrate: 1981 kb/s
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1835 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
    Stream #0:2(eng): Subtitle: mov_text (tx3g / 0x67337874), 1280x108, 0 kb/s (default)
    Metadata:
      rotate          : 0
      creation_time   : 2020-05-20T08:15:54.000000Z
File 'side_view.jpg' already exists. Overwrite ? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x55e27e819520] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'side_view.jpg':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
    Stream #0:0(eng): Video: mjpeg, yuvj420p(pc), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.54.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    1 fps=0.1 q=5.2 Lsize=N/A time=00:00:00.03 bitrate=N/A speed=0.00313x    
video:44kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown


  



  In the above output, notice time=00:00:00.03 despite the given -ss 00:03:12.00.

  



  Update

  



  ffmpeg -i "001 Introduction.mp4" -ss 00:03:12.00 -vframes 1 -report -copyts side_view.jpg

  



  https://gist.github.com/GowthamKudupudi/d3703f990548819a5bcd5e72bd5c0449

  


• Im failing to build .so file for android from FFMPEG

  15 juillet 2020, par yejafot

  I tried many times with different versions of ffmpeg but failed eventually. I dont know how they wrote .sh file to configure different tools. Here are some .sh files i tried and it all failed. Either it shows only android/share folder instead of

  


  


  • android/include

    


  


  • android/lib

    


  


  • android/share

    


  


  


  OR

  


  i end up in error like no file or folder exist,etc

  


  I will share build_arm64-v8a different version of files below

  


  VERSION 1

  


  #!/bin/bash
export NDK=/media/sf_sharing/android-ndk
export HOST_TAG=linux-x86_64 # adjust to your building host
export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/$HOST_TAG

export CC=$TOOLCHAIN/bin/aarch64-linux-android21-clang
export CXX=$TOOLCHAIN/bin/aarch64-linux-android21-clang++

function build_arm64-v8a
{
  ./configure \
  --prefix=./android/arm64-v8a \
  --enable-static \
  --enable-pic \
  --disable-asm \
  --disable-opencl \
  --disable-cli \
  --host=aarch64-linux \
  --cross-prefix=$TOOLCHAIN/bin/aarch64-linux-android- \
  --sysroot=$TOOLCHAIN/sysroot \

  make clean
  make
  make install
}

build_arm64-v8a
echo build_arm64-v8a finished


  


  VERSION 2

  


  #!/bin/bash

TOOLCHAIN=/media/sf_sharing/my-android-toolchain64
CROSS_PREFIX=$TOOLCHAIN/bin/aarch64-linux-android-
rm -f $(pwd)/compat/strtod.o
function build_one
{
./configure --prefix=$PREFIX --enable-shared --disable-static --enable-protocol=file --enable-pic --enable-small --disable-programs --disable-doc --disable-symver --target-os=android --enable-cross-compile --cross-prefix=$CROSS_PREFIX --extra-cflags="-Os -fpic $ADDI_CFLAGS" --extra-ldflags="$ADDI_LDFLAGS" --sysroot=$TOOLCHAIN/sysroot $ADDITIONAL_CONFIG_FLAG
make clean
make -j2
make install
}

CPU=arm64-v8a
mkdir -p $(pwd)/android/$CPU
PREFIX=$(pwd)/android/$CPU
ADDI_CFLAGS="-march=armv8-a"
ADDI_LDFLAGS="-L$TOOLCHAIN/sysroot/usr/lib"
ADDITIONAL_CONFIG_FLAG="--arch=aarch64 --enable-yasm"
build_one


  


  VERSION 3

  


  #!/bin/bash
export NDK=/media/sf_sharing/android-ndk
export HOST_TAG=linux-x86_64 # adjust to your building host
export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/$HOST_TAG

export CC=$TOOLCHAIN/bin/aarch64-linux-android21-clang
export CXX=$TOOLCHAIN/bin/aarch64-linux-android21-clang++

function build_arm64-v8a
{
  ./configure \
  --prefix="$HOME/ffmpeg_build" \
  --pkg-config-flags="--static" \
  --extra-cflags="-I$HOME/ffmpeg_build/include" \
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
  --extra-libs="-lpthread -lm" \
  --bindir="$HOME/bin" \
  --enable-gpl \
  --enable-gnutls \
  --enable-libaom \
  --enable-libass \
  --enable-libfdk-aac \
  --enable-libfreetype \
  --enable-libmp3lame \
  --enable-libopus \
  --enable-libvorbis \
  --enable-libvpx \
  --enable-libx264 \
  --enable-libx265 \
  --enable-nonfree \

  make clean
  make
  make install
}

build_arm64-v8a
echo build_arm64-v8a finished


  


  I'm using

  


  


  • ffmpeg-snapshot.tar.bz2

    


  


  • android-ndk-r21d-linux-x86_64

    


  


  


  the only thing i know in 'ndk 21` is we need to use default toolchain (android documentation says).

  


  How to create .sh file to build .so file to use in android ?

  


• How to compile ffmpeg in yocto to get a working binary

  3 novembre 2020, par Dharma B

  In our yocto project,the SDK has default "poky/meta/recipes-multimedia/ffmpeg/ffmpeg_3.3.3.bb" bb file. and this is our bbappend file
meta-qti-bsp/recipes-multimedia/ffmpeg/ffmpeg_%.bbappend

  


      EXTRA_OEMAKE = ""

FILES_${PN} += "/lib/lib*.so.*" FILES_${PN} += "/lib/pkgconfig/*" FILES_${PN}-dev += "/usr/share/*" FILES_${PN}-dev += "/lib/lib*.so"

PACKAGECONFIG = "avdevice avfilter avcodec avformat swresample swscale postproc bzlib gpl theora"

# Support multilib compilation for libav PROVIDES += "${MLPREFIX}libav"

EXTRA_CFLAGS_append += " -fPIC" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', '-mfloat-abi=hard', '', d)}" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'neon', '-mfpu=neon', '', d)}" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'armv7a', '-march=armv7-a', '', d)}" EXTRA_CFLAGS_append += " ${@ bb.utils.contains('TUNE_FEATURES', 'cortexa8', '-mtune=cortex-a8', '', d)}"

EXTRA_OECONF_append += " \
    --target-os=linux --sysroot=${STAGING_DIR_TARGET} --arch=${TARGET_ARCH} --disable-mmx \
    --enable-shared --disable-doc --disable-htmlpages --disable-manpages --disable-podpages \
    --disable-txtpages --enable-small --disable-debug --disable-ffserver --disable-ffplay \
    --extra-cflags="${EXTRA_CFLAGS}" --disable-network --disable-zlib \
    --enable-fft --libdir=${base_libdir} --shlibdir=${base_libdir} \
    --enable-muxer=mov --enable-muxer=mp4 --enable-encoders --enable-zlib --enable-encoder=png \
    --prefix=${base_libdir} --incdir=${includedir} \ "

do_install() {
    oe_runmake 'DESTDIR=${D}' install
    # Info dir listing isn't interesting at this point so remove it if it exists.
    if [ -e "${D}${infodir}/dir" ]; then
    rm -f ${D}${infodir}/dir
    fi }  NORMAL


  


  with this I could able to get ffmpeg bin. I pushed it on to the device (vr360 chipset : qcs605).
But when I try to invoke any ffmpeg commands say

  


  ffmpeg -ss 00:00:00 -i "input.mp4"  -t 00:01:00 "out.mp4"


  


  I'm getting this error

  


  


  [NULL @ 0xaf61a380] Unable to find a suitable output format for
'out.mp4' out.mp4 : Invalid argument

  


  


  for all ffmpeg operation related to video/image processing I'm getting the same error.

  


  Is there anything else,do I need to enable ?