Hi, I use the USB camera to capture live video.
The default codec context is: Input #0, dshow, from 'video=Mercury USB2.0 Camera': Duration: N/A, start: 58890.453000, bitrate: N/A Stream #0:0: Video: mjpeg, yuvj422p, 1280x720, 30 tbr, 10000k tbn, 30 tbc I hope to change frame size from 1280x720 to 640x480. I tried AVCodecContext pCodecCtx->width = 640; pCodecCtx->height = 480; But this did not work. Thanks! _______________________________________________ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user