#7325 closed defect (invalid)

PNG decoder not found in FFmpeg 4.0.2

Reported by: Anatol Owned by:
Priority: normal Component: undetermined
Version: unspecified Keywords:
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

PNG decoder not found in FFmpeg 4.0.2

FFmpeg 4.0.2 fails to decode PNG files. Same behavior occurs on 3.4 and 4.0 as well.
FFmpeg 3.2 works fine with PNG.

Cmd-line - ffmpeg -i 2.png -y a.jpg

Source PNG file -
https://bellard.org/bpg/2.png

Full printout -
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers

built with gcc 4.9.4 (Ubuntu 4.9.4-2ubuntu1~12.04)
configuration: --prefix=/opt/ffmpeg-4.0.2 --libdir=/opt/ffmpeg-4.0.2/lib --shlibdir=/opt/ffmpeg-4.0.2/lib --extra-cflags='-static -static-libstdc++ -static-libgcc -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-version3 --disable-devices --enable-indev=lavfi --enable-avfilter --enable-filter=movie --enable-postproc --enable-pthreads --enable-swscale --disable-bzlib --enable-libx264 --enable-libx265 --enable-libvpx --enable-libfdk-aac --enable-libmp3lame --enable-libgsm --enable-libtheora --enable-libvorbis --enable-libspeex --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libass --enable-libfreetype --enable-fontconfig --enable-avisynth --disable-autodetect --disable-vdpau --extra-libs='-lm -ldl -lpthread -lz -lrt' --extra-cxxflags='-static -static-libstdc++ -static-libgcc'
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
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100

[png_pipe @ 0x4c70f80] Could not find codec parameters for stream 0 (Video: png, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, png_pipe, from '2.png':

Duration: N/A, bitrate: N/A

Stream #0:0: Video: png, none, 25 tbr, 25 tbn, 25 tbc

Stream mapping:

Stream #0:0 -> #0:0 (? (?) -> mjpeg (native))

Decoder (codec png) not found for input stream #0:0

Change History (1)

comment:1 Changed 11 months ago by cehoyos

  • Component changed from avcodec to undetermined
  • Keywords png codec missing removed
  • Priority changed from important to normal
  • Resolution set to invalid
  • Status changed from new to closed
  • Version changed from git-master to unspecified

Needs zlib, please understand that only current FFmpeg git head is supported here and that this is a bug tracker, not a support forum, you can get help with build issues on the user mailing list.

Note: See TracTickets for help on using tickets.