configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --e nable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libblur ay --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopu s --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --ena ble-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-lib x264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-z lib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-c uvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-l ibmfx Splitting the commandline. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Reading option '-y' ... matched as option 'y' (overwrite output files) with argu ment '1'. Reading option '-i' ... matched as input url with argument 'C:\tmp\BDG108_003_01_BG.png'. Reading option '-vf' ... matched as option 'vf' (set video filters) with argumen t 'scale=451:270'. Reading option 'C:\tmp\BDG108_003_01_BG_LD.png' ... matched as output url. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument debug. Applying option y (overwrite output files) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url C:\tmp\BDG108_003_01_BG.png. Successfully parsed a group of options. Opening an input file: C:\tmp\BDG108_003_01_BG.png. [NULL @ 00000000004377e0] Opening 'C:\tmp\BDG108_003_01_BG.png' for reading [file @ 00000000004393e0] Setting default whitelist 'file,crypto' [png_pipe @ 00000000004377e0] Format png_pipe probed with size=2048 and score=99 [png_pipe @ 00000000004377e0] Before avformat_find_stream_info() pos: 0 bytes re ad:32768 seeks:0 nb_streams:1 [png_pipe @ 00000000004377e0] Probe buffer size limit of 5000000 bytes reached [png_pipe @ 00000000004377e0] Stream #0: not enough frames to estimate rate; con sider increasing probesize [png_pipe @ 00000000004377e0] After avformat_find_stream_info() pos: 20573803 by tes read:20573803 seeks:0 frames:1 Input #0, png_pipe, from 'C:\tmp\BDG108_003_01_BG.png': Duration: N/A, bitrate: N/A Stream #0:0, 1, 1/25: Video: png, 1 reference frame, rgba(pc), 4224x2544 [SAR 2835:2835 DAR 88:53], 0/1, 25 tbr, 25 tbn, 25 tbc Successfully opened the file. Parsing a group of options: output url C:\tmp\BDG108_003_01_BG_LD.png. Applying option vf (set video filters) with argument scale=451:270. Successfully parsed a group of options. Opening an output file: C:\tmp\BDG108_003_01_BG_LD.png. Successfully opened the file. detected 8 logical cores Stream mapping: Stream #0:0 -> #0:0 (png (native) -> png (native)) Press [q] to stop, [?] for help cur_dts is invalid (this is harmless if it occurs once at the start per stream) Last message repeated 1 times [Parsed_scale_0 @ 000000000038aa80] Setting 'w' to value '451' [Parsed_scale_0 @ 000000000038aa80] Setting 'h' to value '270' [Parsed_scale_0 @ 000000000038aa80] Setting 'flags' to value 'bicubic' [Parsed_scale_0 @ 000000000038aa80] w:451 h:270 flags:'bicubic' interl:0 [graph 0 input from stream 0:0 @ 00000000003b9340] Setting 'video_size' to value '4224x2544' [graph 0 input from stream 0:0 @ 00000000003b9340] Setting 'pix_fmt' to value '2 8' [graph 0 input from stream 0:0 @ 00000000003b9340] Setting 'time_base' to value '1/25' [graph 0 input from stream 0:0 @ 00000000003b9340] Setting 'pixel_aspect' to val ue '2835/2835' [graph 0 input from stream 0:0 @ 00000000003b9340] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 00000000003b9340] Setting 'frame_rate' to value '25/1' [graph 0 input from stream 0:0 @ 00000000003b9340] w:4224 h:2544 pixfmt:rgba tb: 1/25 fr:25/1 sar:2835/2835 sws_param:flags=2 [format @ 00000000003bcc20] compat: called with args=[rgb24|rgba|rgb48be|rgba64b e|pal8|gray|ya8|gray16be|ya16be|monob] [format @ 00000000003bcc20] Setting 'pix_fmts' to value 'rgb24|rgba|rgb48be|rgba 64be|pal8|gray|ya8|gray16be|ya16be|monob' [AVFilterGraph @ 0000000000439f40] query_formats: 4 queried, 3 merged, 0 already done, 0 delayed [swscaler @ 00000000023000a0] Forcing full internal H chroma due to odd output s ize [swscaler @ 00000000023000a0] Forcing full internal H chroma due to input having non subsampled chroma [Parsed_scale_0 @ 000000000038aa80] w:4224 h:2544 fmt:rgba sar:2835/2835 -> w:45 1 h:270 fmt:rgba sar:2160/2173 flags:0x4 Output #0, image2, to 'C:\tmp\BDG108_003_01_BG_LD.png': Metadata: encoder : Lavf57.84.100 Stream #0:0, 0, 1/25: Video: png, 1 reference frame, rgba, 451x270 [SAR 2160:2173 DAR 88:53], 0/1, q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc Metadata: encoder : Lavc57.108.100 png Clipping frame in rate conversion by 0.000008 cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) [out_0_0 @ 00000000003bca20] EOF on sink link out_0_0:default. No more output streams to write to, finishing.