media: docs: Fix newline typo
Fix example code which has missing or double backslash typo. Signed-off-by: Kwang Son <dev.kwang.son@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Kwang Son
Mauro Carvalho Chehab
Родитель
22be5a10d0
Коммит
d7894721f7
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@ -56,7 +56,7 @@ file: media/v4l/capture.c
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static void errno_exit(const char *s)
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{
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fprintf(stderr, "%s error %d, %s\\n", s, errno, strerror(errno));
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fprintf(stderr, "%s error %d, %s\n", s, errno, strerror(errno));
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exit(EXIT_FAILURE);
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}
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@ -201,7 +201,7 @@ file: media/v4l/capture.c
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}
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if (0 == r) {
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fprintf(stderr, "select timeout\\n");
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fprintf(stderr, "select timeout\n");
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exit(EXIT_FAILURE);
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}
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@ -307,7 +307,7 @@ file: media/v4l/capture.c
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buffers = calloc(1, sizeof(*buffers));
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if (!buffers) {
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fprintf(stderr, "Out of memory\\n");
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fprintf(stderr, "Out of memory\n");
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exit(EXIT_FAILURE);
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}
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@ -315,7 +315,7 @@ file: media/v4l/capture.c
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buffers[0].start = malloc(buffer_size);
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if (!buffers[0].start) {
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fprintf(stderr, "Out of memory\\n");
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fprintf(stderr, "Out of memory\n");
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exit(EXIT_FAILURE);
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}
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}
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@ -341,7 +341,7 @@ file: media/v4l/capture.c
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}
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if (req.count < 2) {
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fprintf(stderr, "Insufficient buffer memory on %s\\n",
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fprintf(stderr, "Insufficient buffer memory on %s\n",
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dev_name);
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exit(EXIT_FAILURE);
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}
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@ -349,7 +349,7 @@ file: media/v4l/capture.c
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buffers = calloc(req.count, sizeof(*buffers));
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if (!buffers) {
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fprintf(stderr, "Out of memory\\n");
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fprintf(stderr, "Out of memory\n");
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exit(EXIT_FAILURE);
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}
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@ -401,7 +401,7 @@ file: media/v4l/capture.c
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buffers = calloc(4, sizeof(*buffers));
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if (!buffers) {
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fprintf(stderr, "Out of memory\\n");
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fprintf(stderr, "Out of memory\n");
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exit(EXIT_FAILURE);
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}
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@ -410,7 +410,7 @@ file: media/v4l/capture.c
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buffers[n_buffers].start = malloc(buffer_size);
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if (!buffers[n_buffers].start) {
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fprintf(stderr, "Out of memory\\n");
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fprintf(stderr, "Out of memory\n");
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exit(EXIT_FAILURE);
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}
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}
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@ -426,7 +426,7 @@ file: media/v4l/capture.c
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if (-1 == xioctl(fd, VIDIOC_QUERYCAP, &cap)) {
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if (EINVAL == errno) {
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fprintf(stderr, "%s is no V4L2 device\\n",
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fprintf(stderr, "%s is no V4L2 device\n",
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dev_name);
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exit(EXIT_FAILURE);
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} else {
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@ -435,7 +435,7 @@ file: media/v4l/capture.c
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}
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if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
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fprintf(stderr, "%s is no video capture device\\n",
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fprintf(stderr, "%s is no video capture device\n",
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dev_name);
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exit(EXIT_FAILURE);
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}
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@ -443,7 +443,7 @@ file: media/v4l/capture.c
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switch (io) {
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case IO_METHOD_READ:
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if (!(cap.capabilities & V4L2_CAP_READWRITE)) {
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fprintf(stderr, "%s does not support read i/o\\n",
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fprintf(stderr, "%s does not support read i/o\n",
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dev_name);
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exit(EXIT_FAILURE);
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}
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@ -452,7 +452,7 @@ file: media/v4l/capture.c
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case IO_METHOD_MMAP:
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case IO_METHOD_USERPTR:
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if (!(cap.capabilities & V4L2_CAP_STREAMING)) {
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fprintf(stderr, "%s does not support streaming i/o\\n",
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fprintf(stderr, "%s does not support streaming i/o\n",
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dev_name);
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exit(EXIT_FAILURE);
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}
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@ -541,7 +541,7 @@ file: media/v4l/capture.c
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struct stat st;
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if (-1 == stat(dev_name, &st)) {
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fprintf(stderr, "Cannot identify '%s': %d, %s\\n",
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fprintf(stderr, "Cannot identify '%s': %d, %s\n",
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dev_name, errno, strerror(errno));
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exit(EXIT_FAILURE);
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}
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@ -554,7 +554,7 @@ file: media/v4l/capture.c
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fd = open(dev_name, O_RDWR /* required */ | O_NONBLOCK, 0);
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if (-1 == fd) {
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fprintf(stderr, "Cannot open '%s': %d, %s\\n",
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fprintf(stderr, "Cannot open '%s': %d, %s\n",
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dev_name, errno, strerror(errno));
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exit(EXIT_FAILURE);
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}
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@ -563,17 +563,17 @@ file: media/v4l/capture.c
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static void usage(FILE *fp, int argc, char **argv)
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{
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fprintf(fp,
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"Usage: %s [options]\\n\\n"
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"Version 1.3\\n"
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"Options:\\n"
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"-d | --device name Video device name [%s]n"
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"-h | --help Print this messagen"
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"-m | --mmap Use memory mapped buffers [default]n"
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"-r | --read Use read() callsn"
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"-u | --userp Use application allocated buffersn"
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"-o | --output Outputs stream to stdoutn"
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"-f | --format Force format to 640x480 YUYVn"
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"-c | --count Number of frames to grab [%i]n"
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"Usage: %s [options]\n\n"
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"Version 1.3\n"
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"Options:\n"
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"-d | --device name Video device name [%s]\n"
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"-h | --help Print this message\n"
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"-m | --mmap Use memory mapped buffers [default]\n"
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"-r | --read Use read() calls\n"
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"-u | --userp Use application allocated buffers\n"
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"-o | --output Outputs stream to stdout\n"
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"-f | --format Force format to 640x480 YUYV\n"
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"-c | --count Number of frames to grab [%i]\n"
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"",
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argv[0], dev_name, frame_count);
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}
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@ -659,6 +659,6 @@ file: media/v4l/capture.c
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stop_capturing();
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uninit_device();
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close_device();
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fprintf(stderr, "\\n");
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fprintf(stderr, "\n");
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return 0;
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}
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@ -46,7 +46,7 @@ file: media/v4l/v4l2grab.c
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} while (r == -1 && ((errno == EINTR) || (errno == EAGAIN)));
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if (r == -1) {
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fprintf(stderr, "error %d, %s\\n", errno, strerror(errno));
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fprintf(stderr, "error %d, %s\n", errno, strerror(errno));
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exit(EXIT_FAILURE);
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}
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}
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@ -80,11 +80,11 @@ file: media/v4l/v4l2grab.c
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fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
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xioctl(fd, VIDIOC_S_FMT, &fmt);
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if (fmt.fmt.pix.pixelformat != V4L2_PIX_FMT_RGB24) {
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printf("Libv4l didn't accept RGB24 format. Can't proceed.\\n");
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printf("Libv4l didn't accept RGB24 format. Can't proceed.\n");
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exit(EXIT_FAILURE);
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}
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if ((fmt.fmt.pix.width != 640) || (fmt.fmt.pix.height != 480))
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printf("Warning: driver is sending image at %dx%d\\n",
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printf("Warning: driver is sending image at %dx%d\n",
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fmt.fmt.pix.width, fmt.fmt.pix.height);
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CLEAR(req);
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@ -151,7 +151,7 @@ file: media/v4l/v4l2grab.c
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perror("Cannot open image");
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exit(EXIT_FAILURE);
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}
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fprintf(fout, "P6\\n%d %d 255\\n",
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fprintf(fout, "P6\n%d %d 255\n",
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fmt.fmt.pix.width, fmt.fmt.pix.height);
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fwrite(buffers[buf.index].start, buf.bytesused, 1, fout);
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fclose(fout);
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