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• encoding with ffmpeg libx265 -pix_fmt gray gives unplayable vid

  9 juin 2017, par netjiro

  What am I missing ?
  I encode an old black and white film clip with ffmpeg libx265 passing -pix_fmt gray. The output is unplayable in both vlc and mplayer (linux), so I assume I’m missing something...

  encoding :

  ffmpeg -i clip.mkv \
  
      -c:v libx265 -preset slow -x265-params "crf=24" -pix_fmt gray \
  
      -c:a libopus -b:a 64k \
  
      -c:s copy \
  
      out.mkv

  vlc errors :

  [00007f8a3ddfe328] blend blend error: no matching alpha blending routine (chroma: RGBA -> GREY)
  
  [00007f8a3ddfe328] core blend error: blending RGBA to GREY failed
  
  ... repeated ...

  mplayer errors :

  Unexpected decoder output format Planar Y800
  
  ... repeated ...

  ffmpeg encoding output :

  ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 4.9.4 (Gentoo 4.9.4 p1.0, pie-0.6.4)
  
    configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --docdir=/usr/share/doc/ffmpeg-3.2.4/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 --enable-nonfree --enable-version3 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --enable-version3 --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-gcrypt --disable-gnutls --disable-gmp --enable-gpl --enable-hardcoded-tables --enable-iconv --enable-lzma --enable-network --enable-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 --enable-libcdio --disable-libiec61883 --disable-libdc1394 --disable-libcaca --enable-openal --enable-opengl --enable-libv4l2 --disable-libpulse --enable-libopencore-amrwb --enable-libopencore-amrnb --disable-libfdk-aac --enable-libopenjpeg --enable-libbluray --enable-libcelt --disable-libgme --disable-libgsm --disable-mmal --enable-libmodplug --enable-libopus --disable-libilbc --disable-librtmp --enable-libssh --enable-libschroedinger --enable-libspeex --enable-libvorbis --enable-libvpx --disable-libzvbi --disable-libbs2b --disable-chromaprint --disable-libebur128 --disable-libflite --disable-frei0r --disable-libfribidi --enable-fontconfig --disable-ladspa --disable-libass --enable-libfreetype --disable-librubberband --disable-libzimg --enable-libsoxr --enable-pthreads --enable-libvo-amrwbenc --enable-libmp3lame --disable-libkvazaar --disable-nvenc --disable-libopenh264 --enable-libsnappy --enable-libtheora --enable-libtwolame --enable-libwavpack --disable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --disable-amd3dnow --disable-amd3dnowext --disable-fma4 --disable-xop --cpu=host --disable-doc --disable-htmlpages --enable-manpages
  
    libavutil      55. 34.101 / 55. 34.101
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.101 / 57. 56.101
  
    libavdevice    57.  1.100 / 57.  1.100
  
    libavfilter     6. 65.100 /  6. 65.100
  
    libavresample   3.  1.  0 /  3.  1.  0
  
    libswscale      4.  2.100 /  4.  2.100
  
    libswresample   2.  3.100 /  2.  3.100
  
    libpostproc    54.  1.100 / 54.  1.100
  
  x265 [info]: HEVC encoder version 2.2
  
  x265 [info]: build info [Linux][GCC 4.9.4][64 bit] 8bit+10bit+12bit
  
  x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
  
  x265 [info]: Unknown profile, Level-3.1 (Main tier)
  
  x265 [warning]: No thread pool allocated, --wpp disabled
  
  x265 [warning]: No thread pool allocated, --lookahead-slices disabled
  
  x265 [info]: Slices                              : 1
  
  x265 [info]: frame threads / pool features       : 3 / none
  
  x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
  
  x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
  
  x265 [info]: ME / range / subpel / merge         : star / 57 / 3 / 3
  
  x265 [info]: Keyframe min / max / scenecut / bias: 23 / 250 / 40 / 5.00
  
  x265 [info]: Lookahead / bframes / badapt        : 25 / 4 / 2
  
  x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
  
  x265 [info]: References / ref-limit  cu / depth  : 4 / on / on
  
  x265 [info]: AQ: mode / str / qg-size / cu-tree  : 1 / 1.0 / 32 / 1
  
  x265 [info]: Rate Control / qCompress            : CRF-24.0 / 0.60
  
  x265 [info]: tools: rect limit-modes rd=4 psy-rd=2.00 rdoq=2 psy-rdoq=1.00
  
  x265 [info]: tools: rskip signhide tmvp strong-intra-smoothing deblock sao
  
  Output #0, matroska, to 'out.mkv':
  
    Metadata:
  
      encoder         : Lavf57.56.101
  
      Metadata:
  
      Stream #0:0(eng): Video: hevc (libx265), gray, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 1k tbn, 23.98 tbc (default)
  
      Metadata:
  
        encoder         : Lavc57.64.101 libx265
  
      Stream #0:1(eng): Audio: opus (libopus) ([255][255][255][255] / 0xFFFFFFFF), 48000 Hz, stereo, flt, 64 kb/s (default)
  
      Metadata:
  
        encoder         : Lavc57.64.101 libopus
  
      Stream #0:2(eng): Subtitle: subrip (default)
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
  
    Stream #0:1 -> #0:1 (eac3 (native) -> opus (libopus))
  
    Stream #0:3 -> #0:2 (copy)
  
  Press [q] to stop, [?] for help
  
  frame= 1439 fps=7.0 q=-0.0 Lsize=    5356kB time=00:01:00.01 bitrate= 731.1kbits/s speed=0.294x    
  
  video:4940kB audio:382kB subtitle:1kB other streams:0kB global headers:2kB muxing overhead: 0.629434%
  
  x265 [info]: frame I:      9, Avg QP:22.27  kb/s: 6064.82 
  
  x265 [info]: frame P:    340, Avg QP:23.62  kb/s: 1950.21 
  
  x265 [info]: frame B:   1090, Avg QP:29.65  kb/s: 230.75  
  
  x265 [info]: Weighted P-Frames: Y:0.9% UV:0.0%
  
  x265 [info]: consecutive B-frames: 2.9% 0.3% 1.4% 72.5% 22.9% 

• FFMPeg stuck while processing a video

  15 juin 2017, par Muhammad Umar

  I am trying to add slow motion to an FFMPEG video in android

  On my terminal original query i use is

  ffmpeg -i soon.mp4 -filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]" -map "[v]" -map "[a]" output.mp4

  Here is my code in android,

      String cmd = "/data/data/PACKAGE_NAME/files/ffmpeg -i "+ videoFileName +" -filter_complex [0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a] -map [v] -map [a] " + file.getAbsolutePath();

  In Android , i have only removed quotation marks since ffmpeg is not recognising these.

  When i exceute FFMPEG,
  following happens

  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=
  
  06-15 22:07:01.340 11866-11866/PACKAGE_NAME D/WRITING::   libavutil      55. 17.103 / 55. 17.103
  
  06-15 22:07:01.720 11866-11866/PACKAGE_NAME D/WRITING::   libavcodec     57. 24.102 / 57. 24.102
  
  06-15 22:07:02.100 11866-11866/PACKAGE_NAME D/WRITING::   libavformat    57. 25.100 / 57. 25.100
  
  06-15 22:07:02.510 11866-11866/PACKAGE_NAME D/WRITING::   libavdevice    57.  0.101 / 57.  0.101
  
  06-15 22:07:02.900 11866-11866/PACKAGE_NAME D/WRITING::   libavfilter     6. 31.100 /  6. 31.100
  
  06-15 22:07:03.290 11866-11866/PACKAGE_NAME D/WRITING::   libswscale      4.  0.100 /  4.  0.100
  
  06-15 22:07:03.620 11866-11866/PACKAGE_NAME D/WRITING::   libswresample   2.  0.101 /  2.  0.101
  
  06-15 22:07:03.980 11866-11866/PACKAGE_NAME D/WRITING::   libpostproc    54.  0.100 / 54.  0.100
  
  06-15 22:07:04.320 11866-11866/PACKAGE_NAME D/WRITING:: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DCIM/Camera/V_20170204_181009.mp4':
  
  06-15 22:07:04.720 11866-11866/PACKAGE_NAME D/WRITING::   Metadata:
  
  06-15 22:07:05.050 11866-11866/PACKAGE_NAME D/WRITING::     major_brand     : isom
  
  06-15 22:07:05.450 11866-11866/PACKAGE_NAME D/WRITING::     minor_version   : 0
  
  06-15 22:07:05.860 11866-11866/PACKAGE_NAME D/WRITING::     compatible_brands: isom3gp4
  
  06-15 22:07:05.870 230-230/? E/ia_watchdog: Refreshing Watchdog Timers
  
  06-15 22:07:06.240 11866-11866/PACKAGE_NAME D/WRITING::     creation_time   : 2017-02-04 13:10:13
  
  06-15 22:07:06.850 11866-11866/PACKAGE_NAME D/WRITING::   Duration: 00:00:02.82, start: 0.000000, bitrate: 12760 kb/s
  
  06-15 22:07:07.240 11866-11866/PACKAGE_NAME D/WRITING::     Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 12344 kb/s, SAR 1:1 DAR 16:9, 24.19 fps, 23.92 tbr, 90k tbn, 60 tbc (default)
  
  06-15 22:07:07.620 11866-11866/PACKAGE_NAME D/WRITING::     Metadata:
  
  06-15 22:07:07.990 11866-11866/PACKAGE_NAME D/WRITING::       rotate          : 90
  
  06-15 22:07:08.400 11866-11866/PACKAGE_NAME D/WRITING::       creation_time   : 2017-02-04 13:10:13
  
  06-15 22:07:08.870 11866-11866/PACKAGE_NAME D/WRITING::       handler_name    : VideoHandle
  
  06-15 22:07:09.880 11866-11866/PACKAGE_NAME D/WRITING::     Side data:
  
  06-15 22:07:10.530 11866-11866/PACKAGE_NAME D/WRITING::       displaymatrix: rotation of -90.00 degrees
  
  06-15 22:07:11.000 11866-11866/PACKAGE_NAME D/WRITING::     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s (default)
  
  06-15 22:07:11.530 11866-11866/PACKAGE_NAME D/WRITING::     Metadata:
  
  06-15 22:07:12.120 11866-11866/PACKAGE_NAME D/WRITING::       creation_time   : 2017-02-04 13:10:13
  
  06-15 22:07:12.620 11866-11866/PACKAGE_NAME D/WRITING::       handler_name    : SoundHandle

  After that nothing happens, FFMPEG seems like stuck in oblivion. Any ideas what could be wrong

• ffmpeg null filter when configuring (no such filter 'eq')

  20 octobre 2017, par Diolor

  I configure ffmpeg to compile it an Android gcc (among others) like that :

  ./configure --disable-filters --enable-filter=atrim,trim,eq

  And this is the preview :

  Enabled filters:
  
  aformat          anull            atrim            format           null             trim

  Obviously the eq filter is missing and in it’s place it’s the null enabled filter. As expected the eq filter is also missing from the executable binary and if we try use the eq filter it will return :

   No such filter: 'eq', Error reinitializing filters!, Failed to inject frame into filter network: 
  
   Invalid argument, Error while processing the decoded data for stream #0:0, Conversion failed!

  Full configuration :

  --prefix=/path/to/x86 
  
  --enable-static --disable-shared 
  
  --enable-small 
  
  --enable-cross-compile 
  
  --target-os=linux
  
  --arch=x86 
  
  --sysroot=/path/to/sysroot 
  
  --cross-prefix=/path/to/i686-linux-android- 
  
  --enable-pic 
  
  --disable-ffplay 
  
  --disable-ffprobe 
  
  --disable-ffserver 
  
  --disable-doc 
  
  --disable-filters 
  
  --enable-filter=atrim,trim,eq 
  
  --disable-asm 
  
  --disable-debug
  
  --extra-cflags=-I/path/to/usr/include -O3 -Wno-deprecated-declarations -fpie -pie -Wl,-z,relro,-z,now -march=i686 -m32 -mtune=intel -mssse3 -mfpmath=sse
  
  --extra-ldflags=-L/path/to/usr/lib -fpie -pie