请教window下采用msys2编译ffmpeg不能录视频的问题

zhouyh

用摄像头录视频的时候，没有报错，程序直接退出了，请问是什么问题，缺少哪些参数？
编译参数：
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with 用于 x86 的 Microsoft (R) C/C++ 优化编译器 19.16.27045 版
  configuration: --prefix=../output32 --toolchain=msvc --arch=x86 --enable-libx264 --enable-shared --disable-static --arch=x86 --enable-gpl --enable-yasm --enable-asm --disable-w32threads --enable-ffplay --disable-doc --enable-small



D:\Soft\msys2\x86\ffmpeg-4.4\ffmpeg\output32\bin>ffmpeg -list_devices true -f dshow -i dummy
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with 用于 x86 的 Microsoft (R) C/C++ 优化编译器 19.16.27045 版
  configuration: --prefix=../output32 --toolchain=msvc --arch=x86 --enable-libx264 --enable-shared --disable-static --arch=x86 --enable-gpl --enable-yasm --enable-asm --disable-w32threads --enable-ffplay --disable-doc --enable-small
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[dshow @ 009D9180] DirectShow video devices (some may be both video and audio devices)
[dshow @ 009D9180]  "Integrated Camera"
[dshow @ 009D9180]     Alternative name "@device_pnp_\\?\usb#vid_04f2&pid_b6d9&mi_00#6&850bcba&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global"
[dshow @ 009D9180]  "USB Video Device"
[dshow @ 009D9180]     Alternative name "@device_pnp_\\?\usb#vid_1bcf&pid_2288&mi_00#7&12d96aab&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global"
[dshow @ 009D9180] DirectShow audio devices
[dshow @ 009D9180]  "麦克风 (5-  Microphone)"
[dshow @ 009D9180]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{06CF3887-28D3-4A5B-837A-2F6AD63616D4}"
[dshow @ 009D9180]  "麦克风阵列 (英特尔® 智音技术)"
[dshow @ 009D9180]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{F9657AB8-6E32-4096-AB16-86C7CD6D74F0}"
dummy: Immediate exit requested

D:\Soft\msys2\x86\ffmpeg-4.4\ffmpeg\output32\bin>ffmpeg -f dshow -i video="Integrated Camera" out.mp4
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with 用于 x86 的 Microsoft (R) C/C++ 优化编译器 19.16.27045 版
  configuration: --prefix=../output32 --toolchain=msvc --arch=x86 --enable-libx264 --enable-shared --disable-static --arch=x86 --enable-gpl --enable-yasm --enable-asm --disable-w32threads --enable-ffplay --disable-doc --enable-small
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100

D:\Soft\msys2\x86\ffmpeg-4.4\ffmpeg\output32\bin>ffmpeg -f dshow -i video="Integrated Camera" out.mp4
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with 用于 x86 的 Microsoft (R) C/C++ 优化编译器 19.16.27045 版
  configuration: --prefix=../output32 --toolchain=msvc --arch=x86 --enable-libx264 --enable-shared --disable-static --arch=x86 --enable-gpl --enable-yasm --enable-asm --disable-w32threads --enable-ffplay --disable-doc --enable-small
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100

孙悟空

从打印的信息看，似乎并没有获得到输入信息