我有命令将两个视频叠加在一起。
ffmpeg -i input.mp4 -vf "movie= overlay.mov [a]; [1][a]scale2ref[2nd][ref];[2nd][ref]overlay=0:0 [c]" output.mp4
现在，我想在上面的命令中添加水印并连接一个新的视频append.mov。我找到了添加水印的命令。
ffmpeg -i output.mp4 -i watermark.png -filter_complex "overlay=10:10" outputwatermark.mp4
但是我想同时合并命令，还需要将append.mov与output.mp4连接起来。
如果视频尺寸较大，则上述叠加两个视频命令的处理时间也太长。有什么建议（不应该影响视频质量）吗？
我尝试按照以下命令连接视频。
ffmpeg -i abc.mp4 -i ../input/overlay2.mov append.mp4
视频未连接，下面是输出。
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with Apple clang version 11.0.0 (clang-1100.0.33.17)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
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
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'abc.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Duration: 00:00:37.40, start: 0.000000, bitrate: 474 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 960x540 [SAR 3:4 DAR 4:3], 324 kb/s, 1k fps, 1k tbr, 16k tbn, 2k tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 69 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '../input/overlay2.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2020-03-27T16:32:23.000000Z
Duration: 00:00:37.44, start: 0.000000, bitrate: 3519 kb/s
Stream #1:0(eng): Video: qtrle (rle / 0x20656C72), argb(progressive), 640x352, 3295 kb/s, SAR 1:1 DAR 20:11, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
Metadata:
creation_time : 2020-03-27T16:32:23.000000Z
handler_name : Apple Video Media Handler
encoder : Animation
timecode : 00:00:00:00
Stream #1:1(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2020-03-27T16:32:23.000000Z
handler_name : Time Code Media Handler
timecode : 00:00:00:00
File 'append.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7ff35a012200] using SAR=3/4
[libx264 @ 0x7ff35a012200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7ff35a012200] profile High, level 5.2
[libx264 @ 0x7ff35a012200] 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=6 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=25 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 'append.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 960x540 [SAR 3:4 DAR 4:3], q=-1--1, 1k fps, 16k tbn, 1k tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc58.54.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 69 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc58.54.100 aac
frame=37399 fps=378 q=-1.0 Lsize= 2138kB time=00:00:37.39 bitrate= 468.4kbits/s speed=0.378x
video:1454kB audio:221kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 27.624002%
[libx264 @ 0x7ff35a012200] frame I:150 Avg QP:11.47 size: 1655
[libx264 @ 0x7ff35a012200] frame P:9423 Avg QP:14.43 size: 52
[libx264 @ 0x7ff35a012200] frame B:27826 Avg QP:17.67 size: 27
[libx264 @ 0x7ff35a012200] consecutive B-frames: 0.8% 0.0% 0.0% 99.2%
[libx264 @ 0x7ff35a012200] mb I I16..4: 94.0% 4.3% 1.7%
[libx264 @ 0x7ff35a012200] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.1% 0.0% 0.0% 0.0% 0.0% skip:99.8%
[libx264 @ 0x7ff35a012200] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.1% 0.0% 0.0% direct: 0.0% skip:99.9% L0:54.5% L1:45.5% BI: 0.1%
[libx264 @ 0x7ff35a012200] 8x8 transform intra:4.8% inter:84.4%
[libx264 @ 0x7ff35a012200] coded y,uvDC,uvAC intra: 1.6% 2.3% 2.0% inter: 0.0% 0.0% 0.0%
[libx264 @ 0x7ff35a012200] i16 v,h,dc,p: 96% 0% 3% 0%
[libx264 @ 0x7ff35a012200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 58% 9% 28% 1% 1% 1% 1% 1% 1%
[libx264 @ 0x7ff35a012200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 22% 15% 4% 4% 5% 5% 4% 4%
[libx264 @ 0x7ff35a012200] i8c dc,h,v,p: 97% 1% 1% 0%
[libx264 @ 0x7ff35a012200] Weighted P-Frames: Y:1.9% UV:1.9%
[libx264 @ 0x7ff35a012200] ref P L0: 86.3% 8.4% 4.5% 0.8% 0.0%
[libx264 @ 0x7ff35a012200] ref B L0: 75.4% 24.0% 0.5%
[libx264 @ 0x7ff35a012200] ref B L1: 98.1% 1.9%
[libx264 @ 0x7ff35a012200] kb/s:318.42
[aac @ 0x7ff35a013a00] Qavg: 152.336