Я наткнулся на странный GIF-файл на inte rnet, который ffmpeg, похоже, не нравится. Попробуйте выполнить следующие команды:
curl http://images6.fanpop.com/image/photos/34300000/Klaus-The-Originals-klaus-34349255-120-113.gif > input.gif
ffmpeg -y -i input.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" output.mp4
Я получаю следующий вывод с ffmpeg версии 3.4.6 и 4.1.3:
ffmpeg version 4.1.3-0ubuntu1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8 (Ubuntu 8.3.0-6ubuntu1)
configuration: --prefix=/usr --extra-version=0ubuntu1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, gif, from 'a.gif':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: gif, bgra, 120x113, 5 fps, 5 tbr, 100 tbn, 100 tbc
Stream mapping:
Stream #0:0 -> #0:0 (gif (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x5613f5420c80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x5613f5420c80] profile High, level 1.0
[libx264 @ 0x5613f5420c80] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'o.mp4':
Metadata:
encoder : Lavf58.20.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 120x112, q=-1--1, 5 fps, 10240 tbn, 5 tbc
Metadata:
encoder : Lavc58.35.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[gif @ 0x5613f540edc0] Invalid image height.
Error while decoding stream #0:0: Invalid data found when processing input
[mp4 @ 0x5613f541f380] Starting second pass: moving the moov atom to the beginning of the file
frame= 1 fps=0.0 q=23.0 Lsize= 3kB time=00:00:00.00 bitrate=253795.9kbits/s speed=0.0245x
video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 34.588745%
[libx264 @ 0x5613f5420c80] frame I:1 Avg QP:21.16 size: 1622
[libx264 @ 0x5613f5420c80] mb I I16..4: 14.3% 42.9% 42.9%
[libx264 @ 0x5613f5420c80] 8x8 transform intra:42.9%
[libx264 @ 0x5613f5420c80] coded y,uvDC,uvAC intra: 67.9% 41.1% 33.9%
[libx264 @ 0x5613f5420c80] i16 v,h,dc,p: 25% 38% 25% 12%
[libx264 @ 0x5613f5420c80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 8% 58% 18% 2% 3% 3% 1% 4% 2%
[libx264 @ 0x5613f5420c80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 29% 15% 7% 7% 6% 5% 4% 3%
[libx264 @ 0x5613f5420c80] i8c dc,h,v,p: 77% 5% 16% 2%
[libx264 @ 0x5613f5420c80] kb/s:64.88
Conversion failed!
Я новичок ie с ffmpeg , но, насколько я понимаю, -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2"
масштабирует изображение так, чтобы его высота и ширина были четными числами (необходимо для формата файла mp4), так что это должно предотвратить возникновение такого рода ошибок?
Это выглядит очень похоже на эту проблему на tra c .ffmpeg.org, которая, по-видимому, исправлена.