音视频 ffmpeg命令视频录制(Windows)

先安装dshow软件 Screen Capturer Recorder，
项目地址：https://sourceforge.net/projects/screencapturer/files/
然后查看可用设备名字：ffmpeg -list_devices true -f dshow -i dummy

[dshow @ 0509d6c0] DirectShow video devices (some may be both video and audio devices)
[dshow @ 0509d6c0] "Integrated Webcam" //笔记本摄像头
[dshow @ 0509d6c0] Alternative name 
"@device_pnp_\\?\usb#vid_0bda&pid_5689&mi_00#6&233dd6c7&0&0000#{65e8773d-8f56-11
d0-a3b9-00a0c9223196}\global"
[dshow @ 0509d6c0] "e2eSoft VCam"
[dshow @ 0509d6c0] Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\e2eSoft 
VCam"
[dshow @ 0509d6c0] "screen-capture-recorder"
[dshow @ 0509d6c0] Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-
00A0C911CE86}\{4EA6930A-2C8A-4AE6-A561-56E4
B5044439}"
[dshow @ 0509d6c0] DirectShow audio devices
[dshow @ 0509d6c0] "楹﹀厠椋?(Realtek Audio)"
[dshow @ 0509d6c0] Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-
00A0C911CE86}\wave_{8B8892E5-D3E5-47EC-8B5E
-CEEBF54014E7}"
[dshow @ 0509d6c0] "virtual-audio-capturer"
[dshow @ 0509d6c0] Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-
00A0C911CE86}\{8E14549B-DB61-4309-AFA1-3578
2
E927E935}"
dummy: Immediate exit requested

录制视频（默认参数）

桌面：ffmpeg -f dshow -i video="screen-capture-recorder" v-out.mp4 
摄像头： ffmpeg -f dshow -i video="Integrated Webcam" -y v-out2.flv (要根据自己摄像头名称)

录制声音（默认参数）

系统声音：ffmpeg -f dshow -i audio="virtual-audio-capturer" a-out.aac
系统+麦克风声音：ffmpeg -f dshow -i audio="麦克风 (Realtek Audio)" -f dshow -i audio="virtual-audio-capturer" -filter_complex amix=inputs=2:duration=first:dropout_transition=2 a-out2.aac

同时录制声音和视频（默认参数）

ffmpeg -f dshow -i audio="麦克风 (Realtek Audio)" -f dshow -i audio="virtualaudio-capturer" -filter_complex amix=inputs=2:duration=first:dropout_transition=2 -f dshow -i video="screen-capture-recorder" -y av-out.flv

查看视频录制的可选参数

ffmpeg -f dshow -list_options true -i video="screen-capture-recorder"


[dshow @ 02f0d6c0] DirectShow video device options (from video devices)
[dshow @ 02f0d6c0] Pin "Capture" (alternative pin name "1")
[dshow @ 02f0d6c0] pixel_format=bgr0 min s=1x1 fps=0.02 max s=1920x1080 fps=30
[dshow @ 02f0d6c0] pixel_format=bgr0 min s=1x1 fps=0.02 max s=1920x1080 fps=30
[dshow @ 02f0d6c0] pixel_format=bgr24 min s=1x1 fps=0.02 max s=1920x1080 fps=30
[dshow @ 02f0d6c0] pixel_format=rgb555le min s=1x1 fps=0.02 max s=1920x1080 
fps=30
[dshow @ 02f0d6c0] pixel_format=rgb555le min s=1x1 fps=0.02 max s=1920x1080 
fps=30
[dshow @ 02f0d6c0] pixel_format=rgb8 min s=1x1 fps=0.02 max s=1920x1080 fps=30
[dshow @ 02f0d6c0] pixel_format=yuv420p min s=1x1 fps=0.02 max s=1920x1080 
fps=30

查看视频录制的可选参数

ffmpeg -f dshow -list_options true -i audio="virtual-audio-capturer“

[dshow @ 05a2d6c0] DirectShow audio only device options (from audio devices)
[dshow @ 05a2d6c0] Pin "Capture Virtual Audio Pin" (alternative pin name "1")
[dshow @ 05a2d6c0] min ch=2 bits=16 rate= 48000 max ch=2 bits=16 rate= 48000


ffmpeg -f dshow -list_options true -i audio="麦克风 (Realtek Audio)"

指定参数录制音视频

ffmpeg -f dshow -i audio="麦克风 (Realtek Audio)" -f dshow -i
audio="virtual-audio-capturer" -filter_complex
amix=inputs=2:duration=first:dropout_transition=2 -f dshow -video_size
1920x1080 -framerate 15 -pixel_format yuv420p -i video="screen-capturerecorder" -vcodec h264_qsv -b:v 3M -y av-out.flv

ffmpeg -f dshow -i audio="麦克风 (Realtek Audio)" -f dshow -i
audio="virtual-audio-capturer" -filter_complex
amix=inputs=2:duration=first:dropout_transition=2 -f dshow -i
video="screen-capture-recorder" -vcodec h264_qsv -b:v 3M -r 15 -y avout2.mp4

ffmpeg -f dshow -i audio="麦克风 (Realtek Audio)" -f dshow -i
audio="virtual-audio-capturer" -filter_complex
amix=inputs=2:duration=first:dropout_transition=2 -f dshow -framerate 15
-pixel_format yuv420p -i video="screen-capture-recorder" -vcodec
h264_qsv -b:v 3M -r 15 -y av-out3.mp4

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