From 4009ab0a0c75c0dfe5e67327a56376d8174bbb49 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 29 Mar 2006 22:26:34 +0200 Subject: Add test tools for testing the sliced VBI V4L2 API. From: Hans Verkuil - Allow ioctl-test.c to be build again. - Add sliced-vbi-detect to detect which VBI types are broadcast. - Add sliced-vbi-test to read the VBI packets as they arrive. Signed-off-by: Hans Verkuil --- test/sliced-vbi-detect.c | 146 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 test/sliced-vbi-detect.c (limited to 'test/sliced-vbi-detect.c') diff --git a/test/sliced-vbi-detect.c b/test/sliced-vbi-detect.c new file mode 100644 index 000000000..3fe33f6cc --- /dev/null +++ b/test/sliced-vbi-detect.c @@ -0,0 +1,146 @@ +/* + Sliced vbi autodetection demonstration utility + Copyright (C) 2004 Hans Verkuil + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* This simple utility detects which VBI types are transmitted on + each field/line. It serves both as example source and as a tool to + test the sliced VBI implementation. + + Usage: sliced-vbi-detect [device] + Without a device name as argument it will fallback to /dev/vbi0. + */ + +#include +#include /* Uses _GNU_SOURCE to define getsubopt in stdlib.h */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define __user +#include + +static void detect(int fh, struct v4l2_sliced_vbi_format *fmt) +{ + struct v4l2_sliced_vbi_data *buf = malloc(fmt->io_size); + int cnt; + + for (cnt = 0; cnt < 5; cnt++) { + int size = read(fh, buf, fmt->io_size); + int i; + + if (size <= 0) { + printf("size = %d\n", size); + break; + } + if (cnt == 0) + continue; + for (i = 0; i < size / sizeof(*buf); i++) { + int field, line; + + line = buf[i].line; + field = buf[i].field; + if (buf[i].id == 0) + continue; + if (line < 0 || line >= 24) { + printf("line %d out of range\n", line); + free(buf); + return; + } + fmt->service_lines[field][line] |= buf[i].id; + } + } + free(buf); +} + +void v2s(int id) +{ + switch (id) { + case V4L2_SLICED_TELETEXT_B: printf(" TELETEXT"); break; + case V4L2_SLICED_CAPTION_525: printf(" CC"); break; + case V4L2_SLICED_WSS_625: printf(" WSS"); break; + case V4L2_SLICED_VPS: printf(" VPS"); break; + default: printf(" UNKNOWN %x", id); break; + } +} + +int main(int argc, char **argv) +{ + char *device = "/dev/vbi0"; + struct v4l2_format vbifmt; + struct v4l2_sliced_vbi_format vbiresult; + int fh; + int f, i, b; + + if (argc == 2) + device = argv[1]; + fh = open(device, O_RDONLY); + + if (fh == -1) { + fprintf(stderr, "cannot open %s\n", device); + return 1; + } + memset(&vbiresult, 0, sizeof(vbiresult)); + for (i = 0; i < 16; i++) { + int l; + int set = 0; + + memset(&vbifmt, 0, sizeof(vbifmt)); + vbifmt.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; + for (l = 0; l < 24; l++) { + vbifmt.fmt.sliced.service_lines[0][l] = 1 << i; + vbifmt.fmt.sliced.service_lines[1][l] = 1 << i; + } + if (ioctl(fh, VIDIOC_S_FMT, &vbifmt) < 0) { + if (errno == EINVAL) + continue; + perror("IVTV_IOC_S_VBI_FMT"); + exit(-1); + } + vbiresult.io_size = vbifmt.fmt.sliced.io_size; + for (l = 0; l < 24; l++) { + set |= vbifmt.fmt.sliced.service_lines[0][l] | + vbifmt.fmt.sliced.service_lines[1][l]; + } + detect(fh, &vbiresult); + } + close(fh); + for (f = 0; f < 2; f++) { + printf("Field %d:\n", f); + for (i = 6; i < 24; i++) { + unsigned set = vbiresult.service_lines[f][i]; + + printf(" Line %2d:", i); + for (b = 0; b < 16; b++) { + if (set & (1 << b)) + v2s(1 << b); + } + printf("\n"); + } + } + return 0; +} -- cgit v1.2.3