-vframes number set the number of video frames to output -r rate set frame rate (Hz value, fraction or abbreviation) -s size set frame size (WxH or abbreviation) -aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) -bits_per_raw_sample number set the number of bits per ...
setFrameRate(30):将帧率设置为每秒 30 帧(可根据需要调整)。 4. 处理视频数据 抓取成功后,你可以进入一个循环,不断从视频流中获取帧: while(true){Frameframe=grabber.grab();// 抓取视频帧if(frame==null)break;// 检查是否抓取到帧// 在这里对帧进行处理,可能是渲染到 UI 等操作// 例如:myVideoView...
-audio_device_index <int> .D... select audio device by index for devices with same name (starts at 0) (from -1 to INT_MAX) (default -1) -pixel_format <pix_fmt> .D... set pixel format (default yuv420p) -framerate <video_rate> .D... set frame rate (default "ntsc") -vide...
-vframes number set the number of video frames to output -r rate set frame rate (Hz value, fraction or abbreviation) -s size set frame size (WxH or abbreviation) -aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) -bits_per_raw_sample number set the number of bits per ...
-pixel_format <pix_fmt> .D... set pixel format (default yuv420p) -framerate <video_rate> .D... set frame rate (default "ntsc") -video_size <image_size> .D... set video size -capture_cursor <int> .D... capture the screen cursor (from 0 to 1) (default 0) -capture_mouse...
-r rate set frame rate (Hz value, fraction or abbreviation) -s size set frame size (WxH or abbreviation) -aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) -bits_per_raw_sample number set the number of bits per raw sample ...
-r rate set frame rate (Hz value, fraction or abbreviation)设置帧率,单位Hz -s size set frame size (WxH or abbreviation)设置帧的大小 -aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)设置视频画面的宽高比 -bits_per_raw_sample number set the number of bits per raw sample设...
-r rate set frame rate (Hz value, fraction or abbreviation) -fpsmax rate set max frame rate (Hz value, fraction or abbreviation) -s size set frame size (WxH or abbreviation) -aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) ...
Video options:-vframes numbersetthe numberofvideo frames to output-r ratesetframerate(Hz value,fraction or abbreviation)-fpsmax ratesetmax framerate(Hz value,fraction or abbreviation)-s sizesetframesize(WxH or abbreviation)-aspect aspectsetaspectratio(4:3,16:9or1.3333,1.7777)-display_rotation ang...
libvlc_media_player_set_rate:这是VLC用来设置播放速率的主要函数。它接受一个浮点数作为输入,表示要设置的播放速率。例如,如果你想将视频播放速度加倍,你可以调用libvlc_media_player_set_rate(player, 2.0)。如果你想将视频播放速度减半,你可以调用libvlc_media_player_set_rate(player, 0.5)。需要注意的是,这...