Question

我想在FFmpeg生成的JPEG文件中有一个时间戳。我在执行这样的FFmpeg时收到上述错误消息：

ffmpeg -f dshow -framerate 50 -i video="XI100DUSB-HDMI Video" -strftime 1 "%Y-%m-%d_%H-%M-%S_thumb%04d.jpg"

它还说：

av_interleaved_write_frame（）：参数无效

我做错了什么？谢谢！

完成FFmpeg输出：

ffmpeg version 3.2 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.4.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-li
bopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  libavutil      55. 34.100 / 55. 34.100
  libavcodec     57. 64.100 / 57. 64.100
  libavformat    57. 56.100 / 57. 56.100
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100
Input #0, dshow, from 'video=XI100DUSB-HDMI Video':
  Duration: N/A, start: 777552.702000, bitrate: N/A
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 50 fps, 50 tbr, 10000k tbn, 10000k tbc
[swscaler @ 0000000001c8c940] deprecated pixel format used, make sure you did set range correctly
[mjpeg @ 0000000001c7ea60] removing common factors from framerate
Output #0, image2, to '%Y-%m-%d_%H-%M-%S_thumb%04d.jpg':
  Metadata:
    encoder         : Lavf57.56.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 50 fps, 50 tbn, 50 tbc
    Metadata:
      encoder         : Lavc57.64.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[image2 @ 0000000001c7afe0] Could not get frame filename with strftime
av_interleaved_write_frame(): Invalid argument
frame=    1 fps=0.0 q=7.9 Lsize=N/A time=00:00:00.02 bitrate=N/A speed=0.687x
video:101kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[dshow @ 0000000001c728a0] real-time buffer [XI100DUSB-HDMI Video] [video input] too full or near too full (136% of size: 3041280 [rtbufsize parameter])! frame dropped!
Conversion failed!

Answer 1

将模式传递给strftime（）以进行扩展，其中％d保留用于日期。您必须使用其他工具Advanced Renamer添加序列索引数字作为后缀。

P.S。 FFmpeg正在丢帧。在-rtbufsize 20M

之前添加-i video

FFmpeg：无法使用strftime获取帧文件名

1 个答案: