ffmpeg-encoding-issues.sh

┌─(✓)[jeaye@oryx]─[~/downloads/spinner/loading spinners/spinners op2 30x30][15:06:32]
└──╼ ls
00.png  03.png  06.png  09.png  12.png  15.png  18.png  21.png  24.png  27.png  30.png  33.png  36.png  39.png  42.png  45.png  48.png
01.png  04.png  07.png  10.png  13.png  16.png  19.png  22.png  25.png  28.png  31.png  34.png  37.png  40.png  43.png  46.png  49.png
02.png  05.png  08.png  11.png  14.png  17.png  20.png  23.png  26.png  29.png  32.png  35.png  38.png  41.png  44.png  47.png
┌─(✓)[jeaye@oryx]─[~/downloads/spinner/loading spinners/spinners op2 30x30][15:06:34]
└──╼ ffmpeg -i "%02d.png" -c:v libvpx-vp9 output.webm
ffmpeg version n4.1 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20180831
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvdec --enable-nvenc --enable-omx --enable-shared --enable-version3
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Input #0, image2, from '%02d.png':
  Duration: 00:00:02.00, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgba(pc), 30x30 [SAR 1:1 DAR 1:1], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (png (native) -> vp9 (libvpx-vp9))
Press [q] to stop, [?] for help
[libvpx-vp9 @ 0x55c47bfecf00] v1.7.0
Output #0, webm, to 'output.webm':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: vp9 (libvpx-vp9), yuva420p, 30x30 [SAR 1:1 DAR 1:1], q=-1--1, 200 kb/s, 25 fps, 1k tbn, 25 tbc
    Metadata:
      encoder         : Lavc58.35.100 libvpx-vp9
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=   50 fps=0.0 q=0.0 Lsize=      25kB time=00:00:01.96 bitrate= 106.1kbits/s speed=10.6x    
video:10kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 141.806183%
┌─(✓)[jeaye@oryx]─[~/downloads/spinner/loading spinners/spinners op2 30x30][15:11:09]
└──╼ ffmpeg -version
ffmpeg version n4.1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20180831
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvdec --enable-nvenc --enable-omx --enable-shared --enable-version3
libavutil      56. 22.100 / 56. 22.100
libavcodec     58. 35.100 / 58. 35.100
libavformat    58. 20.100 / 58. 20.100
libavdevice    58.  5.100 / 58.  5.100
libavfilter     7. 40.101 /  7. 40.101
libswscale      5.  3.100 /  5.  3.100
libswresample   3.  3.100 /  3.  3.100
libpostproc    55.  3.100 / 55.  3.100