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• libavutil/tests/md5 : Remove 'volatile workaround' to avoid warnings

  28 mai 2022, par softworkz

  libavutil/tests/md5 : Remove 'volatile workaround' to avoid warnings
  Those are always showing up on Patchwork when FATE tests are failing,
  
  covering some possibly more useful information.
  The volatile keyword was used as a workaround for an eight year old
  
  clang version.
  Signed-off-by : softworkz <softworkz@hotmail.com>
  
  Signed-off-by : Marton Balint <cus@passwd.hu>
  

  • [DH] libavutil/tests/md5.c

• How to ffmpeg a PNG image sequence in multiple subdirs to one mp4 ?

  17 août 2021, par MikeEcho

  I am trying desperately to get this working.

  


  I have multiple files in the format of : lago_20210817_1200.png, lago_20210817_1201.png and so on.

  


  I am having a folder for each day of the year. eg. lago_20210817_1200.png is the folder 2021, subfolder 08, subfolder 17.

  


  I have tried many different approaches :

  


  

  • ffmpeg -f concat -i filelist.txt -r 25 output.mp4

  


  • ffmpeg -f concat -i <(find '/home/user/lago/2021/08/*.png') -r 25 output.mp4

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  But no approach seems to work !

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  I tried to create a filelist with :

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  find . -name '*.png' -exec echo "file '{}'" \;|sort -h|sort


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  the result looked promising

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  file './lago_20210813_1959.png'
file './lago_20210813_2000.png'
file './lago_20210813_2001.png'


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  I am getting very different error messages...

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  DTS -230584300921369, next:40000 st:0 invalid dropping
PTS -230584300921369, next:40000 invalid dropping st:0
DTS -230584300921369, next:40000 st:0 invalid dropping


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  or

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  [concat @ 0x562531fe6c80] Unsafe file name './lago_20210813_2155.png'


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  Could anyone lead me in the right direction, i am desperate.

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  ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
  configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  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


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• ffmpeg 4.4 problem with image2 combined with stream loop -1 and overlay

  14 mai 2021, par codeSam

  I have a python app and my code to stream ffmpeg is :

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  'ffmpeg',
'-thread_queue_size', '1024',
'-i', 'rtsp://...',
'-f', 'image2',
'-stream_loop', '-1',
'-i', 'image.png',
'-filter_complex', 'overlay=(main_w-overlay_w)/2:main_h*0.1-overlay_h',
'-acodec', 'aac',
'-ar', '44100',
'-ab', '128k',
'-f', 'flv',
'-g', '30',
'-vcodec', 'libx264',
'-preset', 'ultrafast',
'-crf', '30',
'rtmp://...'


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  Works fine on ffmpeg 4.3.2. But after ffmpeg updated to 4.4 the stream doesn't start at all. If I change stream_loop -1 to loop 1 the stream starts but as I want to update the image.png like every 10 seconds or so, it stops being updated on the stream. That is probably because new image.png is being saved at the same time it is being read. stream_loop doesn't mind this as I have understood.

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  Also if I delay image.png start with -ss -5, the stream starts with main video from rtsp ://... but it stops when image.png starts to be read.

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  Also if I remove -f image2 from the code, the stream starts fine but image.png is not being updated to the stream.

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  Would be easy to downgrade ffmpeg to the older 4.3.2 version but it is not possible as I want this thing to run on Android device in Termux. Termux has only the latest ffmpeg 4.4 available.

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  Any ideas how to make this work on ffmpeg 4.4.

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  Here is what is printed out when I run the command above. The stream does not start. This is done with Termux in Android device. Stream does not start in my Mac Book Pro's ffmpeg 4.4 either, in that 4.3.2 is ok.

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  ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Android (6454773 based on r365631c2) clang version 9.0.8 
(https://android.googlesource.com/toolchain/llvm-project 98c855489587874b2a325e7a516b99d838599c6f) (based on LLVM 9.0.8svn)
  configuration: --arch=aarch64 --as=aarch64-linux-android-clang --cc=aarch64-linux-android-clang
  --cxx=aarch64-linux-android-clang++ --cross-prefix=aarch64-linux-android- --disable-indevs 
  --disable-outdevs --enable-indev=lavfi --disable-static --disable-symver --enable-cross-compile 
  --enable-gnutls --enable-gpl --enable-libass --enable-libdav1d --enable-libmp3lame 
  --enable-libfreetype --enable-libvorbis --enable-libopus --enable-libx264 --enable-libx265 
  --enable-libxvid --enable-libvpx --enable-shared --enable-libsoxr --enable-libvidstab 
  --enable-libwebp --prefix=/data/data/com.termux/files/usr --target-os=android 
  --extra-libs=-landroid-glob --enable-neon
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[udp @ 0x7ebe823840] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
[udp @ 0x7ebe8238e0] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
[udp @ 0x7ebe823a20] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
[udp @ 0x7ebe823ac0] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)

Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://...':
  Metadata:
    title           : Session streamed by "TP-LINK RTSP Server"
    comment         : stream1
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080, 15 fps, 15 tbr, 90k tbn, 30 tbc
  Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Input #1, image2, from 'image.png':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  Stream #1:0: Video: png, rgba(pc), 1152x87 [SAR 8504:8504 DAR 384:29], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 (h264) -> overlay:main (graph 0)
  Stream #1:0 (png) -> overlay:overlay (graph 0)
  overlay (graph 0) -> Stream #0:0 (libx264)
  Stream #0:1 -> #0:1 (pcm_alaw (native) -> aac (native))
Press [q] to stop, [?] for help


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