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The simplest example of an AVDevice Based on FFmpeg (reading a camera ),FFmpeg has a class library that interacts with multimedia devices: Libavdevice. You can use this library to read data from multimedia devices on your computer (or other devices) or output data to a specified multimedia device.Libavdevice supports the following devices as input: Alsa Avfoundation Bktr Dshow Dv1394 Fbdev Gdigrab 83 Jack Lavfi Libcdio Libdc1394 Openal Oss Pulse Qtkit Sndio Video4linux2, v4l2

); \} // enter the device # define REGISTER_INDEV (X, x) \{\ extern AVInputFormat ff _ # x ##_ demuxer; \ if (CONFIG _ # X ##_ INDEV) \ av_register_input_format ( ff _ # x ###_ demuxer); \} // input/output device # define REGISTER_INOUTDEV (X, x) REGISTER_OUTDEV (X, x ); REGISTER_INDEV (X, x) void avdevice_register_all (void) {static int initialized; if (initialized) return; initialized = 1;/* devices */REGISTER_INOUTDEV (ALSA, alsa ); revoke (AVFOUNDATION, avfoundation); REGISTER_INDEV (BKTR, b

values separately, interested students can learn more about them). GPU Mapping Glad OpenGL Package Graphics-hook Hook graphics API for capturing software windows Image-source Picture resource, motion diagram, multi-map slide show Inject-helper Inject graphices-hook into other processes. Ipc-util Inter-process communication, mainly encapsulates the pipe pipeline implementation, used in the hook game process, the transmission of raw picture data, so used. Jansson JSON processing Libobs-d3d1

encoding via Libwavpack [NO]–ENABLE-LIBWEBP enable WebP encoding via LIBWEBP [no]–enable-libx264 enable H.264 encoding via x264 [no]–enable-libx265 enable HEVC encoding via x265 [NO]–ENABL E-libxavs enable AVS encoding via Xavs [NO]–ENABLE-LIBXCB enable X11 grabbing using XCB [Autodetect]–enable-libxcb-shm E Nable X11 grabbing SHM Communication [autodetect]–enable-libxcb-xfixes enable X11 grabbing mouse rendering [autodetect]–enable-libxcb-shape Enable X11 grabbing shape rendering [autodetect]–

respectively, interested students can learn more about). GPU Mapping Glad OpenGL Encapsulation Graphics-hook Hook graphics API, for crawling software windows Image-source Picture resources, dynamic diagrams, multiple charts slide show Inject-helper Inject graphices-hook into other processes. Ipc-util Inter-process communication, mainly encapsulates the implementation of the pipe pipeline, used in the hook game process, the transmission of raw image data, so used. Jansson JSON processing L

, -- enable-switcher, -- enable-visual, -- enable-media-library, -- enable-SQLite, -- enable-loaderConfigure: Warning: no package 'live555' found.Configure: Warning: no package 'zvbi-0.2 'found.Configure: Warning: Library opencv gt; 2.0 needed for opencv was not foundConfigure: Warning: Library smbclient needed for smbclient was not foundConfigure: Warning: Library libssh2 needed for SFTP was not foundConfigure: Warning: blackmagic decklink SDI inclu