If you encode your mp4 with '*-movflags faststart' it will put the moov atom at the beginning of the movie. This way ffplay can play it BUT it won't play it until the end.* *You'll just see the state of the video when you started ffplay.*
*To see the encoding live until it ends, you need segmented encoding (HLS or segment muxers) to view the files.* *You could also use ffserver and split the output to the mp4 file and a stream and look at the stream. This is a more complicated setup though.,* *Louis* On Thu, Jul 14, 2016 at 6:29 AM, Carles Vila <cvi...@gmail.com> wrote: > Hi all, > > Is there an option to be able to view an mp4 (H.264) which is still being > encoded? > with mpeg-2 in mpeg container it works, it would be handy for mp4.. > Thanks! > > ffplay throws following error: > > ffplay movie.mp4 > ffplay version 2.7.2 Copyright (c) 2003-2015 the FFmpeg developers > built with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn) > configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.2_1 --enable-shared > --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables > --enable-avresample --cc=clang --host-cflags= --host-ldflags= > --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc > --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx > --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus > --enable-libquvi --enable-libx265 --enable-libopenjpeg > --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 ' > --enable-nonfree --enable-vda > libavutil 54. 27.100 / 54. 27.100 > libavcodec 56. 41.100 / 56. 41.100 > libavformat 56. 36.100 / 56. 36.100 > libavdevice 56. 4.100 / 56. 4.100 > libavfilter 5. 16.101 / 5. 16.101 > libavresample 2. 1. 0 / 2. 1. 0 > libswscale 3. 1.101 / 3. 1.101 > libswresample 1. 2.100 / 1. 2.100 > libpostproc 53. 3.100 / 53. 3.100 > [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fabdc02b400] moov atom not found0/0 > movie.mp4: Invalid data found when processing input > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
