Am Sa., 28. Sept. 2019 um 17:58 Uhr schrieb Johanna Nilson <jnil...@gmail.com>: > > Good day! > > I try to convert h264 file to mp4 without converting video data. I use this > command line: > > ffmpeg -y -f h264 -i input.h264 -c:v copy output.mp4 > or > ffmpeg -y -f h264 -i input.h264 -c:v copy output.avi > > Output: > ffmpeg version 4.2 Copyright (c) 2000-2019 the FFmpeg developers
For future questions: Please remember that only current FFmpeg git head is supported here. > built with gcc 9.1.1 (GCC) 20190807 > > configuration: --enable-gpl --enable-version3 --enable-sdl2 > --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass > --enable-libdav1d --enable-libbluray > --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb > --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus > --enable-libshine --enable-libsnappy > --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx > --enable-libwavpack > --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 > --enable-libzimg --enable-lzma > --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis > --enable-libvo-amrwbenc > --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom > --enable-libmfx > --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va > --enable-nvenc --enable-nvdec > --enable-dxva2 --enable-avisynth --enable-libopenmpt > libavutil 56. 31.100 / 56. 31.100 > libavcodec 58. 54.100 / 58. 54.100 > libavformat 58. 29.100 / 58. 29.100 > libavdevice 58. 8.100 / 58. 8.100 > libavfilter 7. 57.100 / 7. 57.100 > libswscale 5. 5.100 / 5. 5.100 > libswresample 3. 5.100 / 3. 5.100 > libpostproc 55. 5.100 / 55. 5.100 > Input #0, h264, from '1920x1080.h264': > Duration: N/A, bitrate: N/A > Stream #0:0: Video: h264 (High), yuv420p(progressive), 1920x1080, 30 > fps, 30 tbr, 1200k tbn, 60 tbc > Output #0, mp4, to 'output.mp4': > Metadata: > encoder : Lavf58.29.100 > Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), > yuv420p(progressive), 1920x1080, q=2-31, 30 fps, 30 tbr, 1200k tbn, 1200k tbc > Stream mapping: > Stream #0:0 -> #0:0 (copy) > Press [q] to stop, [?] for help > > [mp4 @ 000000143378e900] Timestamps are unset in a packet for stream 0. > This is deprecated > and will stop working in the future. Fix your code to set the timestamps > properly > frame= 271 fps=0.0 q=-1.0 Lsize= 7360kB time=00:00:09.00 > bitrate=6694.0kbits/s speed= 376x > video:7356kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB > muxing overhead: 0.049757% > > Link to input.h264 <https://ufile.io/nu973jrm> (https://ufile.io/nu973jrm) > Link to output.mp4 <https://ufile.io/aavprii7> (https://ufile.io/aavprii7) > > But the output.mp4 and output.avi files have bad quality in every nth > frame, they are blured. As does your input sample (as expected since remuxing cannot change the video quality). > But when I use command line: > > ffmpeg -f h264 -i input.h264 -c:v copy output.h264 This command line produces a bit-identical copy of the input file and this output file (also) has the same quality issues as your input file. Carl Eugen _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
