我通过 BT 下载了一部 avi 电影“银魂 2017.avi”。我想播放它，但是失败了。
ffprobe：
ffprobe version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2007-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
WARNING: library configuration mismatch
avcodec configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv --enable-version3 --disable-doc --disable-programs --disable-avdevice --disable-avfilter --disable-avformat --disable-avresample --disable-postproc --disable-swscale --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libvo_aacenc --enable-libvo_amrwbenc
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
[avi @ 0x1983d00] Something went wrong during header parsing, I will ignore it and try to continue anyway.
[mpeg4 @ 0x1984ba0] time_increment_bits 0 is invalid in relation to the current bitstream, this is likely caused by a missing VOL header
[mpeg4 @ 0x1984ba0] time_increment_bits set to 4 bits, based on bitstream analysis
[mpeg4 @ 0x1984ba0] looks like this file was encoded with (divx4/(old)xvid/opendivx) -> forcing low_delay flag
[mpeg4 @ 0x1984ba0] warning: first frame is no keyframe
[mpeg4 @ 0x1984ba0] I cbpy damaged at 0 0
[mpeg4 @ 0x1984ba0] Error at MB: 0
[mpeg4 @ 0x1984ba0] marker does not match f_code
Last message repeated 32 times
[mpeg4 @ 0x1984ba0] concealing 1125 DC, 1125 AC, 1125 MV errors in P frame
Input #0, avi, from './Gintama 2017.avi':
Metadata:
encoder : VirtualDubMod 1.5.10.3 | www.virtualdub-fr.org || (build 2550/release)
Duration: 00:53:34.42, start: 0.000000, bitrate: 2087 kb/s
Stream #0:0: Video: mpeg4 (XVID / 0x44495658), yuv420p, 720x400, 23.98 fps, 23.98 tbr, 23.98 tbn, 23.98 tbc
Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 192 kb/s
转换：
$ ffmpeg -i 'Gintama 2017.avi' -c copy -f matroska 'Gintama 2017.mkv' &> ./ffmpeg.result
[matroska @ 0x1278fe0] Non-monotonous DTS in output stream 0:1; previous: 317353, current: 317339; changing to 317353. This may result in incorrect timestamps in the output file.
[matroska @ 0x1278fe0] Non-monotonous DTS in output stream 0:1; previous: 317371, current: 317357; changing to 317371. This may result in incorrect timestamps in the output file.
[...]
[matroska @ 0x1278fe0] Non-monotonous DTS in output stream 0:1; previous: 366081, current: 366067; changing to 366081. This may result in incorrect timestamps in the output file.
[matroska @ 0x1278fe0] Non-monotonous DTS in output stream 0:1; previous: 366099, current: 366084; changing to 366099. This may result in incorrect timestamps in the output file.
frame= 0 fps=0.0 q=-1.0 Lsize= 20302kB time=00:06:06.14 bitrate= 454.2kbits/s
video:0kB audio:20020kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.408118%
ffprobe转换后
ffprobe version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2007-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
WARNING: library configuration mismatch
avcodec configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv --enable-version3 --disable-doc --disable-programs --disable-avdevice --disable-avfilter --disable-avformat --disable-avresample --disable-postproc --disable-swscale --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libvo_aacenc --enable-libvo_amrwbenc
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
[matroska,webm @ 0x71bd00] Could not find codec parameters for stream 0 (Video: mpeg4, none, 720x400): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, matroska,webm, from 'Gintama 2017.mkv':
Metadata:
ENCODER : Lavf56.40.101
Duration: 00:06:06.15, start: 0.000000, bitrate: 454 kb/s
Stream #0:0: Video: mpeg4, none, 720x400, SAR 1:1 DAR 9:5, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default)
Metadata:
DURATION : 00:00:00.000000000
Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
Metadata:
DURATION : 00:06:06.148000000
操作系统
$ uname -a
Linux darren-HP-Pavilion-Notebook 4.10.0-35-generic #39~16.04.1-Ubuntu SMP Wed
Sep 13
09:02:42 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
file：
$ file ./Gintama\ 2017.avi
./Gintama 2017.avi:
RIFF (little-endian) data,
AVI, 720 x 400, 23.98 fps,
video: XviD,
audio: Dolby AC3 (6 channels, 48000 Hz)
vlc -vv输出
$ vlc -vv
VLC media player 2.2.2 Weatherwax (revision 2.2.2-0-g6259d80)
[0000000001b11098] core libvlc debug: VLC media player - 2.2.2 Weatherwax
[0000000001b11098] core libvlc debug: Copyright © 1996-2016 the VideoLAN team
[0000000001b11098] core libvlc debug: revision 2.2.2-0-g6259d80
[...]
[0000000001b11098] core libvlc debug: CPU has capabilities MMX MMXEXT SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX FPU
[0000000001bdf058] core input debug: Creating an input for 'Media Library'
[0000000001bdf058] core input debug: Input is a meta file: disabling unneeded options
[...]
[00007f6950455ce8] core generic debug: using extension module "lua"
[0000000001c26f48] core interface debug: using interface module "qt4"
[0000000001bf7f68] core playlist debug: adding item `Gintama 2017.avi' ( file:///home/darren/Downloads/Gintama%202017/Gintama%202017.avi )
[0000000001bf7f68] core playlist debug: processing request item: Gintama 2017.avi, node: null, skip: 0
[...]
[00007f6924c01598] avi stream warning: unknown chunk: �Qw! (not loaded)
[00007f6924c01598] avi stream debug: </list 'AVI '>
[00007f6924c01598] avi stream warning: unknown chunk: �Qw! (not loaded)
[00007f6924c01598] avi stream debug: * LIST-root size:838860800 pos:0
[00007f6924c01598] avi stream debug: + RIFF-AVI size:1564110676 pos:0
[00007f6924c01598] avi stream debug: | + LIST-hdrl size:8818 pos:12
[00007f6924c01598] avi stream debug: | | + avih size:56 pos:24
[00007f6924c01598] avi stream debug: | | + LIST-strl size:4244 pos:88
[00007f6924c01598] avi stream debug: | | | + strh size:56 pos:100
[00007f6924c01598] avi stream debug: | | | + strf size:40 pos:164
[00007f6924c01598] avi stream debug: | | | + JUNK size:4120 pos:212
[00007f6924c01598] avi stream debug: | | + LIST-strl size:4222 pos:4340
[00007f6924c01598] avi stream debug: | | | + strh size:56 pos:4352
[00007f6924c01598] avi stream debug: | | | + strf size:18 pos:4416
[00007f6924c01598] avi stream debug: | | | + JUNK size:4120 pos:4442
[00007f6924c01598] avi stream debug: | | + LIST-odml size:260 pos:8570
[00007f6924c01598] avi stream debug: | | | + dmlh size:248 pos:8582
[00007f6924c01598] avi stream debug: | + LIST-INFO size:84 pos:8838
[00007f6924c01598] avi stream debug: | | + ISFT size:71 pos:8850
[00007f6924c01598] avi stream debug: | + JUNK size:1302 pos:8930
[00007f6924c01598] avi stream debug: | + �Qw! size:1908644170 pos:10240
[00007f6924c01598] avi stream debug: + �Qw! size:1908644170 pos:10240
[00007f6924c01808] avi demux error: invalid file: cannot find hdrl or movi chunks
[00007f6924c01598] avi stream warning: unknown chunk: �Qw! (not unloaded)
[00007f6924c01598] avi stream warning: unknown chunk: �Qw! (not unloaded)
[...]
[00007f6924c40a88] core demux meta debug: no meta reader modules matched
[00007f69300009b8] core input debug: `file:///home/darren/Downloads/Gintama%202017/Gintama%202017.avi' successfully opened
[00007f6924c01808] ps demux warning: garbage at input, trying to resync...
[00007f692c003b58] lua art finder debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/01_googleimage.luac
[00007f692c003b58] lua art finder debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
[00007f692c003b58] lua art finder debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
[00007f692c003b58] lua art finder debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/03_lastfm.luac
[00007f692c003b58] lua art finder debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/03_lastfm.luac
[00007f692c003b58] lua art finder debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
[00007f692c003b58] core art finder debug: no art finder modules matched
[00007f692c000a38] core art finder debug: looking for meta fetcher module matching "any": 1 candidates
[00007f692c000a38] lua art finder debug: Trying Lua scripts in /home/darren/.local/share/vlc/lua/meta/fetcher
[00007f692c000a38] lua art finder debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/fetcher
[00007f692c000a38] lua art finder debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/fetcher/tvrage.luac
[00007f692c000a38] core art finder debug: using meta fetcher module "lua"
[00007f692c000a38] core art finder debug: removing module "lua"
[0000000001bf7f68] core playlist debug: searching art for Gintama 2017.avi
[00007f692c002c78] core art finder debug: looking for art finder module matching "any": 2 candidates
[00007f692c002c78] lua art finder debug: Trying Lua scripts in /home/darren/.local/share/vlc/lua/meta/art
[00007f692c002c78] lua art finder debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/art
[00007f692c002c78] lua art finder debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
[00007f692c002c78] lua art finder debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/01_googleimage.luac
[00007f692c002c78] lua art finder debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
[00007f692c002c78] lua art finder debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/03_lastfm.luac
[00007f692c002c78] lua art finder debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
[00007f692c002c78] core art finder debug: no art finder modules matched
[0000000001bf7f68] core playlist debug: art not found for Gintama 2017.avi
^A^C[0000000001b11098] core libvlc debug: removing all interfaces
[0000000001b11098] core libvlc debug: exiting
[0000000001c26f48] core interface debug: removing module "qt4"
[0000000001bf7f68] core playlist debug: deactivating the playlist
[0000000001bf7f68] core playlist debug: incoming request - stopping current input
[0000000001bf7f68] core playlist debug: finished input
[0000000001bf7f68] core playlist debug: incoming request - stopping current input
[0000000001bf7f68] core playlist debug: finished input
[00007f6924c01808] core demux debug: removing module "ps"
[00007f6924c01598] core stream debug: removing module "record"
[00007f6924000e58] core access debug: removing module "filesystem"
[0000000001bf7f68] core playlist debug: incoming request - stopping current input
[0000000001bf7f68] core playlist debug: dead input
[0000000001bec238] core audio output debug: removing module "pulse"
[0000000001c26f48] qt4 interface debug: IM: Deleting the input
[0000000001c26f48] qt4 interface debug: requesting exit...
[0000000001c26f48] qt4 interface debug: waiting for UI thread...
[0000000001b11098] core libvlc debug: exiting
[0000000001c26f48] qt4 interface debug: QApp exec() finished
[0000000001c26f48] qt4 interface debug: Video is not needed anymore
[0000000001c26f48] qt4 interface debug: Killing extension dialog provider
[0000000001c26f48] qt4 interface debug: ExtensionsDialogProvider is quitting...
[00007f6950455ce8] core generic debug: removing module "lua"
[00007f6950455ce8] lua generic debug: Deactivating all loaded extensions
[00007f6950455ce8] lua generic debug: All extensions are now deactivated
[0000000001c1f638] core interface debug: removing module "dbus"
[0000000001c1e668] core interface debug: removing module "xcb_hotkeys"
[0000000001c1dc98] core interface debug: removing module "hotkeys"
[0000000001bf7f68] core playlist debug: destroying
[0000000001c24278] core playlist export debug: saving Media Library to file /home/darren/.local/share/vlc/ml.xspf.tmp3640
[0000000001c24278] core playlist export debug: looking for playlist export module matching "export-xspf": 4 candidates
[0000000001c24278] core playlist export debug: using playlist export module "export"
[0000000001c24278] core playlist export debug: removing module "export"
QObject::~QObject: Timers cannot be stopped from another thread
[The end of output]
已安装的编解码器
$ apt list --installed | grep vlc
libvlc5/
libvlccore8/
vlc/
vlc-data/
vlc-nox/
vlc-plugin-notify/
vlc-plugin-samba/
$ apt list --installed | grep gstream
gir1.2-gstreamer-1.0/
gstreamer1.0-alsa/
gstreamer1.0-clutter-3.0/
gstreamer1.0-fluendo-mp3/
gstreamer1.0-libav/
gstreamer1.0-plugins-bad/
gstreamer1.0-plugins-bad-faad/
gstreamer1.0-plugins-bad-videoparsers/
gstreamer1.0-plugins-base/
gstreamer1.0-plugins-base-apps/
gstreamer1.0-plugins-good/
gstreamer1.0-plugins-ugly/
gstreamer1.0-plugins-ugly-amr/
gstreamer1.0-pulseaudio/
gstreamer1.0-tools/
gstreamer1.0-x/
libgstreamer-plugins-bad1.0-0/
libgstreamer-plugins-base1.0-0/
libgstreamer-plugins-good1.0-0/
libgstreamer1.0-0/
libreoffice-avmedia-backend-gstreamer/
phonon-backend-gstreamer/
phonon-backend-gstreamer-common/
$ apt list --installed | grep avcodec
libavcodec-extra/
libavcodec-ffmpeg-extra56/
$ apt list --installed |grep ubuntu-res
ubuntu-restricted-addons/xenial,now 23 amd64 [installed,automatic]
ubuntu-restricted-extras/xenial,now 65 amd64 [installed]
xxd：
$ xxd -a ./Gintama\ 2017.avi |head -n 100
00000000: 5249 4646 546f 3a5d 4156 4920 4c49 5354 RIFFTo:]AVI LIST
00000010: 7222 0000 6864 726c 6176 6968 3800 0000 r"..hdrlavih8...
00000020: eca2 0000 0000 0000 0000 0000 1001 0000 ................
00000030: 5431 0200 0000 0000 0200 0000 0000 0000 T1..............
00000040: d002 0000 9001 0000 0000 0000 0000 0000 ................
00000050: 0000 0000 0000 0000 4c49 5354 9410 0000 ........LIST....
00000060: 7374 726c 7374 7268 3800 0000 7669 6473 strlstrh8...vids
00000070: 7876 6964 0000 0000 0000 0000 0000 0000 xvid............
00000080: e903 0000 c05d 0000 0000 0000 5431 0200 .....]......T1..
00000090: ce5d 0300 1027 0000 0000 0000 0000 0000 .]...'..........
000000a0: d002 9001 7374 7266 2800 0000 2800 0000 ....strf(...(...
000000b0: d002 0000 9001 0000 0100 0c00 5856 4944 ............XVID
000000c0: 005e 1a00 0000 0000 0000 0000 0000 0000 .^..............
000000d0: 0000 0000 4a55 4e4b 1810 0000 0000 0000 ....JUNK........
000000e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
*
000010f0: 0000 0000 4c49 5354 7e10 0000 7374 726c ....LIST~...strl
00001100: 7374 7268 3800 0000 6175 6473 0000 0000 strh8...auds....
00001110: 0000 0000 0000 0000 0100 0000 0100 0000 ................
00001120: c0da 0000 0000 0000 6463 0114 606d 0000 ........dc..`m..
00001130: ffff ffff 0100 0000 6400 6f00 6900 7400 ........d.o.i.t.
00001140: 7374 7266 1200 0000 0020 0600 80bb 0000 strf..... ......
00001150: c0da 0000 0100 0000 0000 4a55 4e4b 1810 ..........JUNK..
00001160: 0000 0000 0000 0000 0000 0000 0000 0000 ................
*
00002170: 0000 0000 0000 0000 0000 4c49 5354 0401 ..........LIST..
00002180: 0000 6f64 6d6c 646d 6c68 f800 0000 5431 ..odmldmlh....T1
00002190: 0200 0000 0000 0000 0000 0000 0000 0000 ................
000021a0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
*
00002280: 0000 0000 0000 4c49 5354 5400 0000 494e ......LISTT...IN
00002290: 464f 4953 4654 4700 0000 5669 7274 7561 FOISFTG...Virtua
000022a0: 6c44 7562 4d6f 6420 312e 352e 3130 2e33 lDubMod 1.5.10.3
000022b0: 207c 2077 7777 2e76 6972 7475 616c 6475 | www.virtualdu
000022c0: 622d 6672 2e6f 7267 207c 7c20 2862 7569 b-fr.org || (bui
000022d0: 6c64 2032 3535 302f 7265 6c65 6173 6529 ld 2550/release)
000022e0: 0000 4a55 4e4b 1605 0000 5669 7274 7561 ..JUNK....Virtua
000022f0: 6c44 7562 4d6f 6420 6275 696c 6420 3235 lDubMod build 25
00002300: 3530 2f72 656c 6561 7365 0000 0000 0000 50/release......
00002310: 0000 0000 0000 0000 0000 0000 0000 0000 ................
*
00002800: aa51 7721 4a99 c371 ef9c b9f1 8f0a b57c .Qw!J..q.......|
00002810: d881 155e 5814 7d03 2c07 b2cb 2e54 5562 ...^X.}.,....TUb
00002820: 946e b464 ee89 8075 6885 2dae 2671 f863 .n.d...uh.-.&q.c
00002830: 6dbf 0c6d b7e1 8db6 fc0e 6db7 a23f a23e m..m......m..?.>
00002840: 1cdb 6fdf 7c78 2344 b831 b6df b828 bc7e ..o.|x#D.1...(.~
00002850: 79f1 fbc0 cea8 6403 83d4 a3c2 fcfa 6f6b y.....d.......ok
00002860: 3d5b ec64 ba39 f219 c92d ec47 2a0a 487d =[.d.9...-.G*.H}
00002870: 9869 bfb1 b3fe ddcd c5e6 e5b2 ca49 5c5d .i...........I\]
00002880: 9d87 8dcb ce52 603e 15da 1f6a a56d 3732 .....R`>...j.m72
00002890: e55f 3f93 db95 47f0 ae2f 8865 3434 962d ._?...G../.e44.-
000028a0: 0db5 c1a9 5b7f 0820 c5a3 7078 9ffb 40d8 ....[.. ..px..@.
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答案1
VLC 认为该文件不包含任何可以播放的内容。
穆鲁提及，vlc告诉过你了：
[00007f6924c01808] ps demux warning: garbage at input, trying to resync...
之前或之后的输出都不是特别令人鼓舞，也没有表明你有一个真实的、可以工作的视频文件。file命令通常只查看文件的开头或附近来猜测其类型，并且vlc能够尝试播放文件，但找不到任何可以播放的内容，甚至找不到任何看了就像你安装了更多的编解码器就可以播放一样。
如果问题在于文件未被正确读取，则“尝试重新同步”部分可能会带来更好的结果，但事实并非如此。
这看起来像是不是AVI 文件，而不需要编解码器。
在断定给出的数据是垃圾之前，它vlc已经向你展示了如下消息：
[00007f6924c01598] avi stream warning: unknown chunk: �Qw! (not loaded)
然后，作为查尔斯·格林提到，它告诉你：
[00007f6924c01808] avi demux error: invalid file: cannot find hdrl or movi chunks
如果这是一个真正的 AVI 文件，而问题只是你需要编解码器，那么 VLC 应该仍然能够找到高清和莫维数据。然后，当它真正尝试播放文件时，它就会失败。你可能有音频而没有视频，有视频而没有音频，甚至都没有，但当它试图解释莫维文件中的数据。
美国国会图书馆解释什么高清和莫维都是关于：
第一个子块被标记为高清并充当文件头的角色，提供有关视频的元数据，例如宽度、高度和帧速率。第二个子块被标记为莫维它承载着实际的图像和声音数据，可能采用多种编解码器……
VLC 不仅无法解码文件中的视频或音频数据，甚至找不到元数据来告诉它这些数据在哪里。所以这个文件要么（A）从一开始就不是 AVI 文件，或者（二）已损坏。如果您通过 BitTorrent 获取文件，这通常可以很好地防止传输错误（因为会检查每个部分的哈希值），因此它很可能在您下载之前已损坏，或者它从来就不是真正的 AVI 文件。
其他可能性
技术上还有其他一些可能性。如果你之前有理由认为该文件很好，那么我建议它可能是：
- 即使您使用了通常可以防止损坏的协议 (BitTorrent)，文件仍然会损坏。大多数 BitTorrent 程序都具有“强制重新检查”功能，可让您仔细检查收到的所有文件是否经过了正确的哈希处理。
- 需要编解码器的文件这也是错误命名的
.avi但它实际上是一种不同的容器文件类型。不过，这仍然不太可能，因为当你查看顶部该文件（命令file查看的）仍然看起来像是一个 AVI。 - 由一个程序制作，该程序本来是用来生成真正的 AVI 文件的，但有严重的错误导致格式错误，但可以播放一些其他播放器恰好容忍错误的格式（可能是由于它们自己的错误）。我认为这是最不可能的，不过你可以尝试在视频编辑器中打开文件，比如开放射击作为ravery 建议。
在这种情况下，你有一个强有力的启发式方法来支持该文件是故意伪造的解释：它附带可执行文件（适用于 Windows）声称是文件所需编解码器的安装程序，但未附带任何文档，并且多种的恶意软件扫描程序告诉您该文件似乎是恶意软件。
现在我确信整件事都是骗局。
是的，这是最有可能的解释。