$ ffmpeg -s 500x500 -i frames/frame_%04d.png -c:v libx264 -vf fps=15 out.mp4įfmpeg version N-97747-gffae62d96c Copyright (c) 2000-2020 the FFmpeg developersīuilt with clang version 12.0.0 ( e0905553b424afe94938e2cc010fcecd0822eaba)Ĭonfiguration: -cc=/Users/holzschu/src/Xcode_iPad/wasi-sdk/opt/bin/clang -ar=/Users/holzschu/src/Xcode_iPad/wasi-sdk/opt/bin/ar -ranlib=/Users/holz I see you also have a fork of imagemagick - is there a plan to release a wasm binary of it? One potential solution to this problem would be to generate a single GIF file with all the frames and then use it as an input for ffmpeg, but Pillow produces horrible GIFs. Also basic image decoders are missing, like PNG or JPEG. There is basically no modern encoder like h264 or h265 (these are present only as decoders), forcing the use of ancient mpeg4. Stream #0:0 -> #0:0 (bmp (native) -> mpeg4 (native))Įrror while decoding stream #0:0: Invalid data found when processing inputĬannot determine format of input stream 0:0 after EOFįrame_0000.bmp: PC bitmap, Windows 3.x format, 500 x 500 x 24, image size 750000, resolution 3780 x 3780 px/m, cbSize 750054, bits offset 54īesides this, there is also a problem with many lacking encoders and decoders, even though the binary is presented as “full version”. Stream #0:0: Video: bmp, none, 5 tbr, 5 tbn, 5 tbc Could not find codec parameters for stream 0 (Video: bmp, none): unspecified sizeĬonsider increasing the value for the 'analyzeduration' and 'probesize' options Warning: not compiled with thread support, using thread emulation Ls *.bmp | ffmpeg -f image2pipe -c:v bmp -r 5 -i -c:v mpeg4 -vf fps=5 out.avi
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