【求助】ffmpeg合并视频之后画面是慢动作，音频没问题
本帖最后由 zy3287 于 2020-9-15 18:30 编辑ffmpeg -i 2.mp4 -i 1.mp4 -filter_complex "scale=w=176:h=144:force_original_aspect_ratio=decrease;overlay=x=W-w-10:y=0" -map "" -map 0:a -map 1:a -movflags faststart out.mp4 ffmpeg -i 2.mp4 -i 1.mp4 -filter_complex "scale=w=176:h=144:force_original_aspect_ratio=decrease;overlay=x=W-w-10:y=0" -map "" -map 0:a -map 1:a -movflags faststart out.mp4
ffmpeg version git-2020-07-29-cbb6ba2 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 10.2.1 (GCC) 20200726
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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 57.100 / 56. 57.100
libavcodec 58. 97.102 / 58. 97.102
libavformat 58. 49.100 / 58. 49.100
libavdevice 58. 11.101 / 58. 11.101
libavfilter 7. 87.100 /7. 87.100
libswscale 5.8.100 /5.8.100
libswresample 3.8.100 /3.8.100
libpostproc 55.8.100 / 55.8.100
Input #0, matroska,webm, from '2.mp4':
Metadata:
encoder : Chrome
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
Stream #0:1(eng): Video: h264 (Constrained Baseline), yuv420p(progressive), 480x480, SAR 1:1 DAR 1:1, 1k tbr, 1k tbn, 2k tbc (default)
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isom
creation_time : 2020-08-25T03:03:30.000000Z
copyright :
copyright-eng :
Duration: 00:00:59.30, start: 0.000000, bitrate: 1035 kb/s
Stream #1:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
Metadata:
creation_time : 2020-08-25T03:03:30.000000Z
Stream #1:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 544x960, 837 kb/s, 29.86 fps, 29.83 tbr, 90k tbn, 60 tbc (default)
Metadata:
creation_time : 2020-08-25T03:03:31.000000Z
encoder : JVT/AVC Coding
Stream mapping:
Stream #0:1 (h264) -> overlay:main (graph 0)
Stream #1:1 (h264) -> scale (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #0:0 -> #0:1 (opus (native) -> aac (native))
Stream #1:0 -> #0:2 (aac (native) -> aac (native))
Press to stop, [?] for help
using SAR=1/1
using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
profile High, level 5.1, 4:2:0, 8-bit
264 - core 161 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=9 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 'out.mp4':
Metadata:
encoder : Lavf58.49.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x480 , q=-1--1, 1k fps, 16k tbn, 1k tbc (default)
Metadata:
encoder : Lavc58.97.102 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 69 kb/s (default)
Metadata:
encoder : Lavc58.97.102 aac
Stream #0:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2020-08-25T03:03:30.000000Z
encoder : Lavc58.97.102 aac
More than 1000 frames duplicated 0kB time=00:00:00.96 bitrate= 0.4kbits/s dup=686 drop=0 speed=1.82x
More than 10000 frames duplicated 1536kB time=00:00:09.98 bitrate=1260.3kbits/s dup=9309 drop=0 speed= 1.6x
File ended prematurely at pos. 2412606 (0x24d03e)up=55684 drop=0 speed=1.45x
Starting second pass: moving the moov atom to the beginning of the filep=0 speed=1.44x
frame=59334 fps=1428 q=-1.0 Lsize= 10651kB time=00:00:59.33 bitrate=1470.5kbits/s dup=57725 drop=0 speed=1.43x
video:8428kB audio:1422kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 8.125087%
frame I:238 Avg QP:20.54size: 24135
frame P:14952 Avg QP:25.20size: 113
frame B:44144 Avg QP:35.33size: 27
consecutive B-frames:0.8%0.0%0.0% 99.2%
mb II16..4: 11.8% 37.9% 50.3%
mb PI16..4:0.0%0.0%0.0%P16..4:1.4%0.3%0.2%0.0%0.0% skip:98.0%
mb BI16..4:0.0%0.0%0.0%B16..8:1.1%0.0%0.0%direct: 0.0%skip:98.9%L0:27.8% L1:72.1% BI: 0.0%
8x8 transform intra:38.2% inter:41.5%
coded y,uvDC,uvAC intra: 79.4% 84.1% 54.4% inter: 0.1% 0.1% 0.0%
i16 v,h,dc,p: 45% 11%4% 41%
i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 42% 18%9%4%4%6%4%6%7%
i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 50% 15%7%4%4%6%5%5%4%
i8c dc,h,v,p: 35% 18% 41%7%
Weighted P-Frames: Y:0.0% UV:0.0%
ref P L0: 88.8%7.0%3.7%0.5%
ref B L0: 78.2% 21.7%0.1%
ref B L1: 94.3%5.7%
kb/s:1163.54
Qavg: 118.856
Qavg: 474.191 设置一下fps试试看呢？ -r:v 30 孙悟空 发表于 2020-9-16 10:05
设置一下fps试试看呢？ -r:v 30
ffmpeg -i 2.mp4 -i 1.mp4 -filter_complex "scale=w=176:h=144:force_original_aspect_ratio=decrease;overlay=x=W-w-10:y=0" -map "" -map 0:a -map 1:a -r:v 30 -movflags faststart out.mp4已解决，谢谢大师兄
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