ffmpeg幻燈片不能正常工作

我想創建一個基於兩個圖像（'ocean001.jpg'和'ocean002.jpg'）的簡單幻燈片視頻。我正在使用ffmpeg文檔中列出的命令，但我總是以15秒的時間結束空白（例如黑色）視頻文件。ffmpeg幻燈片不能正常工作

我已檢查確認兩個圖像文件大小相同。兩者都是1024x768px。也沒有錯誤報告。

誰能告訴我我做錯了什麼？

下面是命令的輸出，我使用：

ffmpeg -f image2 -r 1/15 -i ocean%03d.jpg -vcodec libx264 out.mp4

下面是上面的命令的輸出：

ffmpeg version 1.0 Copyright (c) 2000-2012 the FFmpeg developers 
    built on Sep 29 2012 11:22:50 with gcc 4.7.1 (GCC) 20120721 (prerelease) 
    configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis --enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora --enable-libgsm --enable-libspeex --enable-postproc --enable-shared --enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libschroedinger --enable-libopenjpeg --enable-librtmp --enable-libpulse --enable-libv4l2 --enable-gpl --enable-version3 --enable-runtime-cpudetect --disable-debug --disable-static 
    libavutil  51. 73.101/51. 73.101 
    libavcodec  54. 59.100/54. 59.100 
    libavformat 54. 29.104/54. 29.104 
    libavdevice 54. 2.101/54. 2.101 
    libavfilter  3. 17.100/3. 17.100 
    libswscale  2. 1.101/2. 1.101 
    libswresample 0. 15.100/0. 15.100 
    libpostproc 52. 0.100/52. 0.100 
Input #0, image2, from 'ocean%03d.jpg': 
    Duration: 00:00:30.00, start: 0.000000, bitrate: N/A 
    Stream #0:0: Video: mjpeg, yuvj444p, 1024x768 [SAR 72:72 DAR 4:3], 1 tbr, 0.07 tbn, 0.07 tbc 
[libx264 @ 0x22debc0] using SAR=1/1 
[libx264 @ 0x22debc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle Cache64 
[libx264 @ 0x22debc0] profile High, level 3.1 
[libx264 @ 0x22debc0] 264 - core 124 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=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=1 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   : Lavf54.29.104 
    Stream #0:0: Video: h264 ([33][0][0][0]/0x0021), yuvj420p, 1024x768 [SAR 1:1 DAR 4:3], q=-1--1, 1 tbn, 0.07 tbc 
Stream mapping: 
    Stream #0:0 -> #0:0 (mjpeg -> libx264) 
Press [q] to stop, [?] for help 
frame= 2 fps=0.0 q=17.0 Lsize=  215kB time=00:00:30.00 bitrate= 58.7kbits/s  
video:214kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.363298% 
[libx264 @ 0x22debc0] frame I:1  Avg QP:16.68 size:132919 
[libx264 @ 0x22debc0] frame P:1  Avg QP:14.27 size: 85767 
[libx264 @ 0x22debc0] mb I I16..4: 0.0% 100.0% 0.0% 
[libx264 @ 0x22debc0] mb P I16..4: 8.1% 82.9% 9.0% P16..4: 0.0% 0.0% 0.0% 0.0% 0.0% skip: 0.0% 
[libx264 @ 0x22debc0] 8x8 transform intra:91.5% inter:100.0% 
[libx264 @ 0x22debc0] coded y,uvDC,uvAC intra: 97.6% 96.7% 80.8% inter: 100.0% 100.0% 100.0% 
[libx264 @ 0x22debc0] i16 v,h,dc,p: 1% 3% 1% 96% 
[libx264 @ 0x22debc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 18% 28% 7% 5% 5% 7% 7% 11% 
[libx264 @ 0x22debc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 16% 12% 8% 10% 8% 6% 8% 5% 
[libx264 @ 0x22debc0] i8c dc,h,v,p: 39% 25% 16% 20% 
[libx264 @ 0x22debc0] Weighted P-Frames: Y:0.0% UV:0.0% 
[libx264 @ 0x22debc0] kb/s:58.32

來源

2012-10-18 Benjen

必須設置率在輸出以及

ffmpeg -r 1/15 -i ocean%03d.jpg -r 30 out.mp4

來源

2013-02-04 08:20:25

ffmpeg幻燈片不能正常工作

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