C++ (Cpp) mjpeg_init Examples

Example #1

File: api_ifile_MJPEG_sdl.c Project: 10daysnobath/ardrone_autonomy

C_RESULT mjpeg_stage_decoding_open(mjpeg_stage_decoding_config_t *cfg)
{
  uint32_t width = cfg->picture->width;
  uint32_t height = cfg->picture->height;
  enum PixelFormat format = cfg->picture->format;

  stream_new( &cfg->stream, OUTPUT_STREAM );

  return mjpeg_init( &cfg->mjpeg, MJPEG_DECODE, width, height, format );
}

Example #2

File: scanner.c Project: blackball/quirc

static int run_scanner(void)
{
	struct quirc *qr;
	struct camera cam;
	struct mjpeg_decoder mj;
	int ret;

	if (camera_init(&cam, camera_path, video_width, video_height) < 0)
		return -1;

	camera_set_gain(&cam, gain_request);

	qr = quirc_new();
	if (!qr) {
		perror("couldn't allocate QR decoder");
		goto fail_qr;
	}

	if (quirc_resize(qr, cam.width, cam.height) < 0) {
		perror("couldn't allocate QR buffer");
		goto fail_qr_resize;
	}

	mjpeg_init(&mj);
	ret = main_loop(&cam, qr, &mj);
	mjpeg_free(&mj);

	quirc_destroy(qr);
	camera_free(&cam);

	return 0;

fail_qr_resize:
	quirc_destroy(qr);
fail_qr:
	camera_free(&cam);

	return 0;
}

Example #3

File: mjpeg_encoder.c Project: 10daysnobath/ardrone_autonomy

C_RESULT mjpeg_stage_decoding_open(mjpeg_stage_decoding_config_t *cfg)
{
  stream_new( &cfg->stream, OUTPUT_STREAM );

  return mjpeg_init( &cfg->mjpeg, MJPEG_DECODE, cfg->picture->width, cfg->picture->height, cfg->picture->format );
}

Example #4

File: scanner.c Project: dlbeer/quirc

static int run_scanner(void)
{
	struct quirc *qr;
	struct camera cam;
	struct mjpeg_decoder mj;
	const struct camera_parms *parms;

	camera_init(&cam);
	if (camera_open(&cam, camera_path, video_width, video_height,
			25, 1) < 0) {
		perror("camera_open");
		goto fail_qr;
	}

	if (camera_map(&cam, 8) < 0) {
		perror("camera_map");
		goto fail_qr;
	}

	if (camera_on(&cam) < 0) {
		perror("camera_on");
		goto fail_qr;
	}

	if (camera_enqueue_all(&cam) < 0) {
		perror("camera_enqueue_all");
		goto fail_qr;
	}

	parms = camera_get_parms(&cam);

	qr = quirc_new();
	if (!qr) {
		perror("couldn't allocate QR decoder");
		goto fail_qr;
	}

	if (quirc_resize(qr, parms->width, parms->height) < 0) {
		perror("couldn't allocate QR buffer");
		goto fail_qr_resize;
	}

	mjpeg_init(&mj);
	if (main_loop(&cam, qr, &mj) < 0)
		goto fail_main_loop;
	mjpeg_free(&mj);

	quirc_destroy(qr);
	camera_destroy(&cam);

	return 0;

fail_main_loop:
	mjpeg_free(&mj);
fail_qr_resize:
	quirc_destroy(qr);
fail_qr:
	camera_destroy(&cam);

	return -1;
}