Buffer Underfollow und Ignorieren der Buffer-Nachricht von ffmpeg

Ich wollte nur das Volumen der mpeg-Datei ändern, also probieren Sie es einfach so aus.

(Die mpeg-Datei enthält eine NTSC-HD-Datei mit 20 MBit / s.)

 ffmpeg -i <inputfile.mpg> -vcodec copy -filter:a "volume=+3dB" <output.mpg> 

Und ich habe viele Warnnachrichten wie diese gefunden

[mpeg @ 00000000030c24c0] buffer underflow st=1 bufi=1077 size=1152 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=38310 size=111232 [mpeg @ 00000000030c24c0] buffer underflow st=1 bufi=1077 size=1152 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=40351 size=111232 [mpeg @ 00000000030c24c0] buffer underflow st=1 bufi=1077 size=1152 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=42392 size=111232 [mpeg @ 00000000030c24c0] buffer underflow st=1 bufi=1077 size=1152 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=44433 size=111232 [mpeg @ 00000000030c24c0] buffer underflow st=1 bufi=1077 size=1152 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=46474 size=111232 [mpeg @ 00000000030c24c0] buffer underflow st=1 bufi=1077 size=1152 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=48515 size=111232 [mpeg @ 00000000030c24c0] buffer underflow st=1 bufi=1077 size=1152 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=50556 size=111232 [mpeg @ 00000000030c24c0] packet too large, ignoring buffer limits to mux it [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=317008 size=433920 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=319049 size=433920 [mpeg @ 00000000030c24c0] packet too large, ignoring buffer limits to mux it [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=319049 size=433920 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=321090 size=433920 [mpeg @ 00000000030c24c0] packet too large, ignoring buffer limits to mux it [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=321090 size=433920 [mpeg @ 00000000030c24c0] buffer underflow st=0 bufi=323131 size=433920 [mpeg @ 00000000030c24c0] packet too large, ignoring buffer limits to mux it 

Ich habe versucht, den Puffer mit -bufsize zu erhöhen, aber es ist derselbe .. Mein erster Bildschirm wird so angezeigt.

ffmpeg version N-82143-gbf14393 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 35.100 / 55. 35.100 libavcodec 57. 65.100 / 57. 65.100 libavformat 57. 57.100 / 57. 57.100 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 66.100 / 6. 66.100 libswscale 4. 3.100 / 4. 3.100 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 Input #0, mpeg, from 'EST0511.mpg': Duration: 00:00:19.02, start: 0.226944, bitrate: 20928 kb/s Stream #0:0[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16p, 384 kb/s Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 1920x1080 [SAR 1:1 DAR 16:9], 20000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc 

Kann ich dazu einen Rat haben?