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• how to prevent FFMPEG from increasing the video size ?

  28 juin 2018, par drexdelta

  My aim is to compress the video and reduce its file size.

  ffmpeg -i input.mp4 -crf 28 output.mp4

  Now, this command, increases the size of the given input file. And on the otherside, quality of the video is same as earlier. So, it’s increasing the space for nothing.

  How can I stop this from happening .

  This is original video (size 9.5 MB) , and this is the compressed video (size 13.2 MB) .

  So, I want to know, if it is possible to detect using ffmpeg, whether the size of the final video will increase or not ?

  FYI : I am writing script. I am not planning to change the CRF factor. Because that will damage quality of other good videos.

  These are the details on my ffmpeg version :

  ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.3.0/include/openjpeg-2.3 --enable-nonfree
  
    libavutil      56. 14.100 / 56. 14.100
  
    libavcodec     58. 18.100 / 58. 18.100
  
    libavformat    58. 12.100 / 58. 12.100
  
    libavdevice    58.  3.100 / 58.  3.100
  
    libavfilter     7. 16.100 /  7. 16.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100

  ---

  Found something here :

  "The only downside with this mode is that you don’t know what the resulting file size or the fluctuation of the bitrate will be." . checkout here

• Raspberry pi live stream to youtube stopped working

  27 décembre 2023, par Gergely Maros

  I have a working setup for streaming a video to youtube with my raspberry pi 3.
It was work until yesterday. Nothing changed but I have an error when I try to start the stream.
Running the following command :

  



  raspivid -o - -t 0 -w 1280 -h 720 -p -hf -fps 25 -b 2560000 | avconv -re -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -f h264 -i - -vcodec copy -acodec aac -ab 128k -g 50 -strict experimental -f flv rtmp://a.rtmp.youtube.com/live2/my_key


  



  And get this error :

  



  ffmpeg version 3.2.10-1 deb9u1+rpt1 Copyright (c) 2000-2018 the FFmpeg
developers   built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1) 20170516  
configuration : —prefix=/usr —extra-version='1 deb9u1+rpt1'
—toolchain=hardened —libdir=/usr/lib/arm-linux-gnueabihf —incdir=/usr/include/arm-linux-gnueabihf —enable-gpl —disable-stripping —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libebur128 —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopenmpt —enable-libopus —enable-libpulse —enable-librubberband —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxvid —enable-libzmq —enable-libzvbi —enable-omx-rpi —enable-mmal —enable-openal —enable-opengl —enable-sdl2 —enable-libdc1394 —enable-libiec61883 —enable-chromaprint —enable-frei0r —enable-libopencv —enable-libx264 —enable-shared   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 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, s16le, from '/dev/zero' :   Duration : N/A, bitrate : 1411 kb/s
    Stream #0:0 : Audio : pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s Input #1, h264, from 'pipe :' :   Duration : N/A, bitrate : N/A
    Stream #1:0 : Video : h264 (High), yuv420p(progressive), 1280x720, 25 fps, 25 tbr, 1200k tbn, 50 tbc
rtmp ://a.rtmp.youtube.com/live2/my_key : Input/output error


  



  It worked more over a month, but now (I don't know why) stopped working.

  



  Can anyone help me ?

  



  Cheers,
Greg

  


• Android FFmpeg Log showing “ File :// protocol not found”

  1er février 2021, par Kishore Jethava

  I'm trying to overlay Image on video but FFmpeg log showing

  



  


  File ://storage/emulated/0/whatsappCamera/wc1529921459336.jpg : Protocol not
 found

  


  



  I have also looked in below thread but it's not helped me
I'm stuck Please help me !!

  



  Android FFmpeg reports “file protocol not found”

  



  Here is command

  



  String[] commandImage =  new String[]{"-ss", "00:00:30.0", "-t", "00:00:10.0", "-i",path,
"i","File://storage/emulated/0/whatsappCamera/wc1529921459336.jpg", "-filter_complex",
"[0]crop=400:400:0:0[a];[a][1]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2",
"-preset", "ultrafast", "-codec:a", "copy",folder.getAbsolutePath()+"/final_video.mp4"};


  



  Full log

  



   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/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --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/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --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
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/whatsappCamera/wc_vid_1529929340679.mp4':
 Metadata:
 major_brand     : mp42
 minor_version   : 0
 compatible_brands: isommp42
 creation_time   : 2018-06-25 12:22:26
 com.android.version: 6.0.1
 Duration: 00:00:05.02, start: 0.000000, bitrate: 17312 kb/s
 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 16947 kb/s, SAR 1:1 DAR 16:9, 30.07 fps, 30 tbr, 90k tbn, 180k tbc (default)
 Metadata:
 rotate          : 90
 creation_time   : 2018-06-25 12:22:26
 handler_name    : VideoHandle
 encoder         : MOTO
 Side data:
 displaymatrix: rotation of -90.00 degrees
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 creation_time   : 2018-06-25 12:22:26
 handler_name    : SoundHandle
 File://storage/emulated/0/whatsappCamera/wc1529921459336.jpg: Protocol not found