Hello, since I recompiled ffmpeg some months ago, I cannot use expressions on the command line anymore, they are simply not recognized. For example:
ffmpeg -re -i demo.mp4 -ac 2 -b:a 64k -ar 44100 -c:v libx264 -r exp:gt(25,30) -f mp4 output.mp4 Invalid framerate value: exp:gt(25,30) Below the complete output. Do I need a specific configuration option when compiling ffmpeg to enable expressions? Regards Frans ====================================== ffmpeg version N-49044-g89afa63 Copyright (c) 2000-2013 the FFmpeg developers built on Jan 19 2013 20:36:06 with gcc 4.7.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfi g --enable-frei0r --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --ena ble-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --en able-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib --enable-filter=frei0r libavutil 52. 15.100 / 52. 15.100 libavcodec 54. 89.100 / 54. 89.100 libavformat 54. 61.101 / 54. 61.101 libavdevice 54. 3.102 / 54. 3.102 libavfilter 3. 32.101 / 3. 32.101 libswscale 2. 2.100 / 2. 2.100 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'demo.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf54.61.101 Duration: 00:29:36.00, start: 0.000000, bitrate: 654 kb/s Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x204 [SAR 1:1 DAR 40:17], 537 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc Metadata: handler_name : VideoHandler Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 111 kb/s Metadata: handler_name : SoundHandler Invalid framerate value: exp:gt(25,30) _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user