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• ffmpeg build error looks tmp file creat fail ?

  19 janvier 2017, par user998953

   ./configure --target-os=android --prefix=$PREFIX \
  
    --enable-cross-compile --enable-runtime-cpudetect --disable-asm --arch=arm \
  
    --cc=$PREBUILT/linux-x86_64/bin/arm-linux-androideabi-gcc \
  
    --cross-prefix=$PREBUILT/linux-x86_64/bin/arm-linux-androideabi- \
  
    --disable-stripping --nm=$PREBUILT/linux-x86_64/bin/arm-linux-androideabi-nm --sysroot=$PLATFORM --enable-gpl --enable-shared --disable-static --enable-small  --disable-ffprobe --disable-ffplay --disable-ffmpeg --disable-ffserver --disable-debug --extra-cflags="-fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -marm -march=armv7-a"

  this is out put log :

  Makefile:2: config.mak: 没有那个文件或目录
  
  Makefile:67: /common.mak: 没有那个文件或目录
  
  Makefile:109: /libavutil/Makefile: 没有那个文件或目录
  
  Makefile:109: /library.mak: 没有那个文件或目录
  
  Makefile:111: /doc/Makefile: 没有那个文件或目录
  
  Makefile:198: /tests/Makefile: 没有那个文件或目录
  
  make: *** No rule to make target '/tests/Makefile'。 停止。
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc is unable to create an executable file.
  
  C compiler test failed.
  
  
  
  If you think configure made a mistake, make sure you are using the latest
  
  version from Git.  If the latest version fails, report the problem to the
  
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  
  Include the log file "config.log" produced by configure as this will help
  
  solve the problem.

  but my gcc path works fine

  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
  arm-linux-androideabi-gcc : fatal error : no input files
  compilation terminated.

  I seems the temp file not create ,I can’t find temp file in /tmp

  this is end of config.log file :

  dition: defined __ARM_ARCH_6T2__ || defined __TARGET_ARCH_6T2"
  
    ^
  
  compilation terminated due to -Wfatal-errors.
  
  check_cpp_condition stddef.h defined __ARM_ARCH_7__ || defined __TARGET_ARCH_7
  
  check_cpp
  
  BEGIN /tmp/ffconf.FHwGDPbC.c
  
      1   #include 
  
      2   #if !(defined __ARM_ARCH_7__ || defined __TARGET_ARCH_7)
  
      3   #error "unsatisfied condition: defined __ARM_ARCH_7__ || defined __TARGET_ARCH_7"
  
      4   #endif
  
  END /tmp/ffconf.FHwGDPbC.c
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -isysroot /opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -marm -march=armv7-a -E -o /tmp/ffconf.csA8Jm6F.o /tmp/ffconf.FHwGDPbC.c
  
  /tmp/ffconf.FHwGDPbC.c:3:2: error: #error "unsatisfied condition: defined __ARM_ARCH_7__ || defined __TARGET_ARCH_7"
  
   #error "unsatisfied condition: defined __ARM_ARCH_7__ || defined __TARGET_ARCH_7"
  
    ^
  
  compilation terminated due to -Wfatal-errors.
  
  check_cpp_condition stddef.h defined __ARM_ARCH_7A__ || defined __TARGET_ARCH_7_A
  
  check_cpp
  
  BEGIN /tmp/ffconf.FHwGDPbC.c
  
      1   #include 
  
      2   #if !(defined __ARM_ARCH_7A__ || defined __TARGET_ARCH_7_A)
  
      3   #error "unsatisfied condition: defined __ARM_ARCH_7A__ || defined __TARGET_ARCH_7_A"
  
      4   #endif
  
  END /tmp/ffconf.FHwGDPbC.c
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -isysroot /opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -marm -march=armv7-a -E -o /tmp/ffconf.csA8Jm6F.o /tmp/ffconf.FHwGDPbC.c
  
  check_ld cc
  
  check_cc
  
  BEGIN /tmp/ffconf.FHwGDPbC.c
  
      1   int main(void){ return 0; }
  
  END /tmp/ffconf.FHwGDPbC.c
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -isysroot /opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -fPIC -DANDROID -D__thumb__ -mthumb -Wfatal-errors -Wno-deprecated -mfloat-abi=softfp -marm -march=armv7-a -march=armv7-a -c -o /tmp/ffconf.csA8Jm6F.o /tmp/ffconf.FHwGDPbC.c
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc --sysroot=/opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -isysroot /opt/android/android-sdk-linux/ndk-bundle/platforms/android-arm -march=armv7-a -o /tmp/ffconf.fjKb0Qb0 /tmp/ffconf.csA8Jm6F.o
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: error: cannot open crtbegin_dynamic.o: No such file or directory
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: error: cannot open crtend_android.o: No such file or directory
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: error: cannot find -lc
  
  /opt/android/android-sdk-linux/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: error: cannot find -ldl
  
  collect2: error: ld returned 1 exit status
  
  C compiler test failed.

• FFMPEG image to video showing blank video

  18 avril 2017, par Ravi Rupareliya

  Here is my command to create a video from multiple images.

  File f = new File(Environment.getExternalStorageDirectory() + "/abc.mp4");
  
  
  
  try {
  
      f.createNewFile();
  
      ffmpeg.execute(new String[]{"-y","-r","1/5","-i","" + "/" + "image%01d.jpg","-pix_fmt","yuv420p","-c:v","libx264","-crf","23","-s","640x480",f.getPath()}, listener);
  
  } catch (Exception e) {
  
      e.printStackTrace();
  
  }

  I have multiple images available at with having names like image1.jpg, image2.jpg etc etc.

  It is creating video file with some 100-200 KB but it showing blank images in VLC player.

  When i try to run it with Windows Media Player, it only runs if it is in repeat mode from player, otherwise it is not playing.

  Output in onSuccess()

  [ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
  
  built with gcc 4.8 (GCC)
  
  configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/i686-linux-android- --arch=x86 --cpu=i686 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/x86 --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=i686' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
  libavutil      55. 17.103 / 55. 17.103
  
  libavcodec     57. 24.102 / 57. 24.102
  
  libavformat    57. 25.100 / 57. 25.100
  
  libavdevice    57.  0.101 / 57.  0.101
  
  libavfilter     6. 31.100 /  6. 31.100
  
  libswscale      4.  0.100 /  4.  0.100
  
  libswresample   2.  0.101 /  2.  0.101
  
  libpostproc    54.  0.100 / 54.  0.100
  
  [mjpeg @ 0xb97270a0] Changing bps to 8
  
  Input #0, image2, from '/storage/emulated/0/Download/image%01d.jpg':
  
  Duration: 00:00:00.08, start: 0.000000, bitrate: N/A
  
  Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 464x317 [SAR 1:1 DAR 464:317], 25 tbr, 25 tbn, 25 tbc
  
  [swscaler @ 0xb9741480] deprecated pixel format used, make sure you did set range correctly
  
  [libx264 @ 0xb97287c0] using SAR=348/317
  
  [libx264 @ 0xb97287c0] using cpu capabilities: none!
  
  [libx264 @ 0xb97287c0] profile High, level 2.2
  
  [libx264 @ 0xb97287c0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '/storage/emulated/0/abc.mp4':
  
  Metadata:
  
  encoder         : Lavf57.25.100
  
  Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 348:317 DAR 464:317], q=-1--1, 0.20 fps, 16384 tbn, 0.20 tbc
  
  Metadata:
  
  encoder         : Lavc57.24.102 libx264
  
  Side data:
  
  unknown side data type 10 (24 bytes)
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  Input stream #0:0 frame changed from size:464x317 fmt:yuvj420p to size:313x470 fmt:yuvj420p
  
  [swscaler @ 0xb9752fc0] deprecated pixel format used, make sure you did set range correctly
  
  frame=    2 fps=0.0 q=-1.0 Lsize=      64kB time=00:00:10.00 bitrate=  52.4kbits/s speed=34.3x    
  
  video:63kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.310563%
  
  [libx264 @ 0xb97287c0] frame I:1     Avg QP:14.14  size: 23785
  
  [libx264 @ 0xb97287c0] frame P:1     Avg QP:17.01  size: 40246
  
  [libx264 @ 0xb97287c0] mb I  I16..4:  3.3% 82.2% 14.4%
  
  [libx264 @ 0xb97287c0] mb P  I16..4:  2.0% 88.1%  9.9%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
  
  [libx264 @ 0xb97287c0] 8x8 transform intra:85.2%
  
  [libx264 @ 0xb97287c0] coded y,uvDC,uvAC intra: 93.3% 82.2% 71.0%
  
  [libx264 @ 0xb97287c0] i16 v,h,dc,p:  5%  3%  3% 89%
  
  [libx264 @ 0xb97287c0] i8 v,h,dc,ddl,ddr,vr,

• How can I change a video frame rate with FFmpeg, lossless and keeping the same total number of frames ?

  28 novembre 2019, par Nuno

  I’ve been searching for an answer here on Stack Overflow and googling everywhere... even though it seems like it should be a very simple command line to me, I just can’t find an answer anywhere.

  I would like to change the frame rate of a video from 23.976fps to 24fps with FFmpeg, lossless and keeping the total number of frames.

  To make it simpler :

  Let’s say I have a 25fps video with a total lenght of 100 frames.

  How can I change it’s frame rate to 50fps, with FFmpeg, lossless and keeping the same total lenght of 100 frames ?

  This was so far the best solution I came across with (which can be found here) :

  Extract the frames as rawvideo :

  ffmpeg -i input.mov -f rawvideo -b 50000000 -pix_fmt yuv420p -vcodec
  rawvideo -s 1920x1080 -y temp.raw

  Recreate the video with new framerate :

  ffmpeg -f rawvideo -b 50000000 -pix_fmt yuv420p -r 24 -s 1920x1080 -i
  temp.raw -y output.mov

  Note 1 : I had to remove "-b 50000000" when recreating the video with the new frame rate, in order to get it to work properly.

  It did exactly what I intended it to do, but I’m still wondering if there is any simpler way to do this ? I’ve tried to pipe them together in one line only, as suggested in the same post, but couldn’t get it to work.

  Note 2 : Even though it does exactly what I wanted it to do, I’ve just later realized there is quality loss using this method, which I would prefer to avoid.

  Thanks everyone in advance !