Question

我正在尝试使用FFmpeg将单个图像转换为视频。我试过跟踪文件：

"ffmpeg  -analyzeduration 2147483647 -probesize 2147483647 -i " + packat.get(i).path +"-r 25 -t 1000 -y op.mp4"

"ffmpeg -loop 1 -r 23.976 -i input.jpg -t 00:00:02 -vcodec qtrle -an output.mov"

"ffmpeg -i c:\rawvideo\mask.bmp -loop 1 -r 29.97 -s 720x480
        -aspect 4:3 -t 00:04:05 -vcodec mjpeg -vb 11261600 -an
        c:\rawvideo\fullmask.avi"

但他们都给了我这个恼人的错误：

 Can not process SOS before SOF, skipping marker parser used 0 bytes (0 bits) decode frame unused 0 bytes decoding for stream 0 failed 
Could not find codec parameters for stream 0 (Video: mjpeg): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options /storage/sdcard0/cblVE/temp/0.jpg: could not find codec parameters 
exit_program: 1

请帮忙。我已经搜索了一周的解决方案，但我什么都没找到。

Answer 1

- 编辑 -

你使用“-f mp4”所以，在你的ffmpeg config / buid中，你有没有要求这个？用“ffmpeg -formats”验证并检查你的构建实际上是否支持mp4。
查看您的日志并转到source code获取“libavcodec / mux.c”

源func中的第124行搜索= avformat_alloc_output_context2

根据您的pastebin＃210
，这是您的日志错误来源
根据方法的第146行和你的pastebin - 你没有值对于'filename'....
你的pastebin＃209-210中的
，你输出的文件名很奇怪吗？

特别是因为你的CLI args例程显示ffmpeg.c接受了输出文件名。

下面是在linux上运行但是可以在android上运行，具体取决于你的ffmpeg的android构建......

ffmpeg -y -loop 1 -t 3.03 -i ~/Pictures/yaya_speech_choose2.png   -r 1  -vcodec libx264 -b:v 200k -bt 350k   -f mp4 ~/Videos/dummy.mp4


ffmpeg version N-35901-g27a3415 Copyright (c) 2000-2012 the FFmpeg developers
  built on Oct  7 2012 12:06:43 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  configuration: --enable-gpl --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
  libavutil      51. 73.102 / 51. 73.102
  libavcodec     54. 64.100 / 54. 64.100
  libavformat    54. 29.105 / 54. 29.105
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 19.102 /  3. 19.102
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
Input #0, image2, from '/home/rob/Pictures/yaya_speech_choose2.png':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgb24, 1080x1920, 25 fps, 25 tbr, 25 tbn, 25 tbc
-t is not an input option, keeping it for the next output; consider fixing your command line.
[libx264 @ 0x1e32500] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 @ 0x1e32500] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
[libx264 @ 0x1e32500] 264 - core 128 r10 198a7ea - 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=4 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=1 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=200 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/home/rob/Videos/dummy.mp4':
  Metadata:
    encoder         : Lavf54.29.105
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 1080x1920, q=-1--1, 200 kb/s, 16384 tbn, 1 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (png -> libx264)
Press [q] to stop, [?] for help
frame=    4 fps=1.8 q=32766.0 Lsize=     236kB time=00:00:02.00 bitrate= 968.3kbits/s dup=0 drop=59    
video:236kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.350287%
[libx264 @ 0x1e32500] frame I:1     Avg QP: 9.29  size:239979
[libx264 @ 0x1e32500] frame P:1     Avg QP: 9.85  size:   128
[libx264 @ 0x1e32500] frame B:2     Avg QP: 9.92  size:   192
[libx264 @ 0x1e32500] consecutive B-frames: 25.0%  0.0% 75.0%  0.0%
[libx264 @ 0x1e32500] mb I  I16..4: 36.2% 49.0% 14.7%
[libx264 @ 0x1e32500] 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 @ 0x1e32500] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.3%  0.1%  0.1%  direct: 0.3%  skip:99.2%  L0:68.9% L1:31.1% BI: 0.0%
[libx264 @ 0x1e32500] final ratefactor: 24.49
[libx264 @ 0x1e32500] 8x8 transform intra:49.0% inter:92.3%
[libx264 @ 0x1e32500] coded y,u,v intra: 37.6% 27.9% 30.0% inter: 0.0% 0.0% 0.0%
[libx264 @ 0x1e32500] i16 v,h,dc,p: 84% 10%  3%  3%
[libx264 @ 0x1e32500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  9% 67%  5%  2%  3%  2%  4%  4%  3%
[libx264 @ 0x1e32500] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 44% 10%  4%  6%  3%  8%  3%  6%
[libx264 @ 0x1e32500] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x1e32500] kb/s:480.98

Answer 2

也许你必须编译一个新的ffmpeg构建并使用它。你能告诉我你正在使用哪个视频？

Answer 3

你的ffmpeg构建肯定存在一些问题。请建立一个新的。

FFmpeg将单个图像转换为Android视频

3 个答案: