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  • Failed to compile x264 library for android, error description : clang:error no such file or directory

    12 janvier 2019, par Lee.Saipeng

    I use a shell script to compile the x264 library to the android platform, the architecture is armeabi-v7a,The x264 library was cloned from github。

    I am sure I have those directories,and I checked the search engine such as google,No one encountered the same situation

    ANDROID_NDK=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b
    
SYSROOT=$ANDROID_NDK/platforms/android-16/arch-arm
    
CROSS_PREFIX=$ANDROID_NDK/toolchains/arm-linux-androideabi- 
    
4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-
    
EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon - 
    
D__ANDROID__ -D__ARM_ARCH_7__ -D__ARM_ARCH_7A__"
    
EXTRA_LDFLAGS="-nostdlib"
    
PREFIX=`pwd`/libs/armeabi-v7a
    

    
./configure --prefix=$PREFIX \
    
    --host=arm-linux \
    
    --sysroot=$SYSROOT \
    
    --cross-prefix=$CROSS_PREFIX \
    
    --extra-cflags="$EXTRA_CFLAGS" \
    
    --extra-ldflags="$EXTRA_LDFLAGS" \
    
    --enable-pic \
    
    --enable-static \
    
    --enable-strip \
    
    --disable-cli \
    
    --disable-asm
    
   # --disable-win32thread \
    
   # --disable-avs \
    
   # --disable-swscale \
    
   # --disable-lavf \
    
   # --disable-ffms \
    
   # --disable-gpac \
    
   # --disable-lsmash \
    
   # --disable-opencl
    

    
make clean
    
make STRIP= -j8 install || exit 1
    

    
cp -f $PREFIX/libx264.a $PREFIX

    The error is here
    enter image description here
    The result is that this x264 library cannot be used. Can someone help me ? thanks very much

    Ok, I generated the config.log file during the compilation of x264, I hope it is an error log file, the log content is as follows :

    checking for -Werror=unknown-warning-option... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__  -Werror=unknown-warning-option   --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -o conftest
    
cc1: error: -Werror=unknown-warning-option: no option -Wunknown-warning-option
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
int main (void) {  return 0; }
    
--------------------------------------------------
    
x264 configure script
    
Command line options: "--prefix=/Users/Project/bishe/x264/libs/armeabi-v7a" "--host=arm-linux" "--sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm" "--cross-prefix=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-" "--extra-cflags=-march=armv5te" "-msoft-float" "-D__ANDROID__" "-D__ARM_ARCH_5TE__" "-D__ARM_ARCH_5TEJ__" "--extra-ldflags=-nostdlib" "--enable-pic" "--enable-static" "--enable-strip" "--disable-cli" "--disable-asm" "--disable-win32thread" "--disable-avs" "--disable-swscale" "--disable-lavf" "--disable-ffms" "--disable-gpac" "--disable-lsmash" "--disable-opencl"
    

    
checking whether /Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc works... yes
    
checking whether /Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc supports for( int i = 0; i &lt; 9; i++ ); with -std=gnu99... yes
    
checking for pthread_create(0,0,0,0); in pthread.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE  -lpthread   --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
conftest.c:1:21: fatal error: pthread.h: No such file or directory
    
 #include 
    
                     ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { pthread_create(0,0,0,0); return 0; }
    
--------------------------------------------------
    
checking for pthread_create(0,0,0,0); in pthread.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
conftest.c:1:21: fatal error: pthread.h: No such file or directory
    
 #include 
    
                     ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { pthread_create(0,0,0,0); return 0; }
    
--------------------------------------------------
    
checking for log2f(2); in math.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
conftest.c:1:18: fatal error: math.h: No such file or directory
    
 #include 
    
                  ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { log2f(2); return 0; }
    
--------------------------------------------------
    
checking for strtok_r(0, 0, 0); in string.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
conftest.c:1:20: fatal error: string.h: No such file or directory
    
 #include 
    
                    ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { strtok_r(0, 0, 0); return 0; }
    
--------------------------------------------------
    
checking for clock_gettime(CLOCK_MONOTONIC, 0); in time.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
conftest.c:1:18: fatal error: time.h: No such file or directory
    
 #include 
    
                  ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { clock_gettime(CLOCK_MONOTONIC, 0); return 0; }
    
--------------------------------------------------
    
checking for clock_gettime(CLOCK_MONOTONIC, 0); in time.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE  -lrt   --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
conftest.c:1:18: fatal error: time.h: No such file or directory
    
 #include 
    
                  ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { clock_gettime(CLOCK_MONOTONIC, 0); return 0; }
    
--------------------------------------------------
    
checking whether defined(MAP_PRIVATE) is true... no
    
--------------------------------------------------
    
conftest.c:1:22: fatal error: sys/mman.h: No such file or directory
    
 #include <sys></sys>mman.h>
    
                      ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include <sys></sys>mman.h>
    
#include 
    
#if !(defined(MAP_PRIVATE)) 
    
#error  
    
#endif 
    
--------------------------------------------------
    
checking for uint32_t test_vec __attribute__ ((vector_size (16))) = {0,1,2,3}; in stdint.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
In file included from conftest.c:1:0:
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/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 
    
                          ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { uint32_t test_vec __attribute__ ((vector_size (16))) = {0,1,2,3}; return 0; }
    
--------------------------------------------------
    
checking for stdio.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE -fPIC  -shared -Wl,-Bsymbolic   --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -o conftest
    
conftest.c:1:19: fatal error: stdio.h: No such file or directory
    
 #include 
    
                   ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) {  return 0; }
    
--------------------------------------------------
    
checking for -fno-tree-vectorize... yes
    
checking for fseeko(stdin,0,0); in stdio.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c -O3 -ffast-math  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE -fPIC -fomit-frame-pointer -fno-tree-vectorize     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -s -o conftest
    
conftest.c:1:19: fatal error: stdio.h: No such file or directory
    
 #include 
    
                   ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { fseeko(stdin,0,0); return 0; }
    
--------------------------------------------------
    
checking for fseeko64(stdin,0,0); in stdio.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c -O3 -ffast-math  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE -fPIC -fomit-frame-pointer -fno-tree-vectorize     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -s -o conftest
    
conftest.c:1:19: fatal error: stdio.h: No such file or directory
    
 #include 
    
                   ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { fseeko64(stdin,0,0); return 0; }
    
--------------------------------------------------
    
checking for _fseeki64(stdin,0,0); in stdio.h... no
    
Failed commandline was:
    
--------------------------------------------------
    
/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc conftest.c -O3 -ffast-math  -Wall -I. -I$(SRCPATH) --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -march=armv5te -msoft-float -D__ANDROID__ -D__ARM_ARCH_5TE__ -D__ARM_ARCH_5TEJ__ -std=gnu99 -D_GNU_SOURCE -fPIC -fomit-frame-pointer -fno-tree-vectorize     --sysroot=/Users/Project/devtools/android-sdk-macosx/android-ndk-r16b/platforms/android-16/arch-arm -nostdlib -lm -s -o conftest
    
conftest.c:1:19: fatal error: stdio.h: No such file or directory
    
 #include 
    
                   ^
    
compilation terminated.
    
--------------------------------------------------
    
Failed program was:
    
--------------------------------------------------
    
#include 
    
int main (void) { _fseeki64(stdin,0,0); return 0; }
    
--------------------------------------------------
    
checking for -Wshadow... yes
    
checking for -Wmaybe-uninitialized... yes
    

    
platform:      ARM
    
byte order:    little-endian
    
system:        LINUX
    
cli:           no
    
libx264:       internal
    
shared:        no
    
static:        yes
    
asm:           no
    
interlaced:    yes
    
avs:           no
    
lavf:          no
    
ffms:          no
    
mp4:           no
    
gpl:           yes
    
thread:        no
    
opencl:        no
    
filters:       crop select_every
    
lto:           no
    
debug:         no
    
gprof:         no
    
strip:         yes
    
PIC:           yes
    
bit depth:     all
    
chroma format: all

  • FFPLAY produces black video output [closed]

    28 janvier 2020, par RooterTooter

    I’m having an issue playing videos with ffplay on an embedded arm device (imx6). The OS is based on yocto sumo and uses the meta-freescale layers for imx6.

    I have a number of test videos in different formats that I am sure are formatted correctly (They play fine on my laptop with ffplay). FFMPEG has all the necessary codecs, detects my streams, it plays audio without an issue, but the video is just black.

    It’s worth nothing that I’m running X11 and have xterm running, and when ffplay is trying to play, a black box will pop up on the screen in the correct dimensions like it thinks it’s decoding video, but it’s always blank.

    $DISPLAY=:0 ffplay test.mp4
    
ffplay version 3.3.3 Copyright (c) 2003-2017 the FFmpeg developers
    
  built with gcc 7.3.0 (GCC)
    
  configuration: --disable-stripping --enable-pic --enable-shared --enable-pthreads --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --disable-libxcb-shape --enable-nonfree --cross-prefix=arm-poky-linux-gnueabi- --ld='arm-poky-linux-gnueabi-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --cc='arm-poky-linux-gnueabi-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --cxx='arm-poky-linux-gnueabi-g++ -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --arch=arm --target-os=linux --enable-cross-compile --extra-cflags=' -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0=/usr/src/debug/ffmpeg/3.3.3-r0 -fdebug-prefix-map=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot= -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --extra-ldflags='-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed' --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot --enable-hardcoded-tables --libdir=/usr/lib --shlibdir=/usr/lib --datadir=/usr/share/ffmpeg --disable-mipsdsp --disable-mipsdspr2 --cpu=cortex-a9 --pkg-config=pkg-config --enable-avcodec --enable-avdevice --enable-avfilter --enable-avformat --enable-avresample --enable-bzlib --enable-gpl --disable-libgsm --disable-indev=jack --disable-libvorbis --enable-lzma --disable-libmp3lame --enable-openssl --enable-postproc --disable-libschroedinger --enable-sdl2 --disable-libspeex --enable-swresample --enable-swscale --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvpx --enable-libx264 --enable-outdev=xv
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':q=    0B f=0/0   
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.20.100
    
  Duration: 00:00:30.88, start: 0.000000, bitrate: 143 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 320x180, 67 kb/s, 21.08 fps, 21.08 tbr, 16192 tbn, 42.17 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 66 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    I’ve tried h264 and mp2 video with the same results. Has anyone seen this before

  • I am able to write certain metadata information to a .m4v file but not all using ffmpeg

    14 janvier 2014, par user3193123

    For example use this code

    ffmpeg -i avatar.m4v -metadata title="Avatar" -metadata artist="James Cameron" -metadata     description="Long Long Ago…" acodec copy -vcodec copy -y /Users/Anand/Desktop/anand.m4v

    Works perfectly fine !!!

    But i am not able to write metadata information such as Rating, Actors(Cast), Producers etc.. because i dont know the keywords or the keywords don't exist ?

    Any body know the keyword for them or can't i write them ?

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