40     V4L2Context *const capture = &s->capture;  in v4l2_try_start()  local
54     if (capture->streamon)  in v4l2_try_start()
57     /* 2. get the capture format */  in v4l2_try_start()
58     capture->format.type = capture->type;  in v4l2_try_start()
59     ret = ioctl(s->fd, VIDIOC_G_FMT, &capture->format);  in v4l2_try_start()
66 …avctx->pix_fmt = ff_v4l2_format_v4l2_to_avfmt(capture->format.fmt.pix_mp.pixelformat, AV_CODEC_ID_…  in v4l2_try_start()
67     capture->av_pix_fmt = avctx->pix_fmt;  in v4l2_try_start()
81             capture->height = selection.r.height;  in v4l2_try_start()
82             capture->width  = selection.r.width;  in v4l2_try_start()
86     /* 4. init the capture context now that we have the capture format */  in v4l2_try_start()
87     if (!capture->buffers) {  in v4l2_try_start()
88         ret = ff_v4l2_context_init(capture);  in v4l2_try_start()
90             av_log(avctx, AV_LOG_ERROR, "can't request capture buffers\n");  in v4l2_try_start()
95     /* 5. start the capture process */  in v4l2_try_start()
96     ret = ff_v4l2_context_set_status(capture, VIDIOC_STREAMON);  in v4l2_try_start()
98         av_log(avctx, AV_LOG_DEBUG, "VIDIOC_STREAMON, on capture context\n");  in v4l2_try_start()
139     V4L2Context *const capture = &s->capture;  in v4l2_receive_frame()  local
147                 return ff_v4l2_context_dequeue_frame(capture, frame, 0);  in v4l2_receive_frame()
175     return ff_v4l2_context_dequeue_frame(capture, frame, -1);  in v4l2_receive_frame()
183     V4L2Context *capture, *output;  in v4l2_decode_init()  local
192     capture = &s->capture;  in v4l2_decode_init()
199     output->height = capture->height = avctx->coded_height;  in v4l2_decode_init()
200     output->width = capture->width = avctx->coded_width;  in v4l2_decode_init()
205     capture->av_codec_id = AV_CODEC_ID_RAWVIDEO;  in v4l2_decode_init()
206     capture->av_pix_fmt = avctx->pix_fmt;  in v4l2_decode_init()
228     { "num_capture_buffers", "Number of buffers in the capture context",