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-rw-r--r--test/sliced-vbi-test.c469
1 files changed, 0 insertions, 469 deletions
diff --git a/test/sliced-vbi-test.c b/test/sliced-vbi-test.c
deleted file mode 100644
index 3b4a7fc8f..000000000
--- a/test/sliced-vbi-test.c
+++ /dev/null
@@ -1,469 +0,0 @@
-/*
- Sliced vbi demonstration utility
- Copyright (C) 2004 Hans Verkuil <hverkuil@xs4all.nl>
-
- 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 test tool is used to test the sliced VBI implementation. It reads
- from /dev/vbi0 by default (or the device name that is specified as the
- first argument) and shows which packets arrive and what the contents
- is. It also serves as example code on how to use the sliced VBI API.
- */
-
-#include <unistd.h>
-#include <features.h> /* Uses _GNU_SOURCE to define getsubopt in stdlib.h */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <getopt.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <math.h>
-
-#include <linux/videodev2.h>
-
-#define printable(c) ((((c) & 0x7F) < 0x20 || ((c) & 0x7F) > 0x7E) ? '.' : ((c) & 0x7F))
-
-int valid_char(char c);
-
-int valid_char(char c)
-{
- /* Invalid Character */
- if (((c) & 0x7F) < 0x20 || ((c) & 0x7F) > 0x7E)
- return 0;
- else /* Valid Character */
- return 1;
-}
-
-int frames = 0;
-int lines = 0;
-int space_needed = 0;
-int text_off = 0;
-
-static const char *formats[] = {
- "Full format 4:3, 576 lines",
- "Letterbox 14:9 centre, 504 lines",
- "Letterbox 14:9 top, 504 lines",
- "Letterbox 16:9 centre, 430 lines",
- "Letterbox 16:9 top, 430 lines",
- "Letterbox > 16:9 centre",
- "Full format 14:9 centre, 576 lines",
- "Anamorphic 16:9, 576 lines"
-};
-static const char *subtitles[] = {
- "none",
- "in active image area",
- "out of active image area",
- "?"
-};
-
-void decode_wss(struct v4l2_sliced_vbi_data *s)
-{
- unsigned char parity;
- int wss;
-
- wss = s->data[0] | (s->data[1] << 8);
-
- parity = wss & 15;
- parity ^= parity >> 2;
- parity ^= parity >> 1;
-
- if (!(parity & 1))
- return;
-
- printf("WSS: %s; %s mode; %s color coding;\n"
- " %s helper; reserved b7=%d; %s\n"
- " open subtitles: %s; %scopyright %s; copying %s\n",
- formats[wss & 7],
- (wss & 0x10) ? "film" : "camera",
- (wss & 0x20) ? "MA/CP" : "standard",
- (wss & 0x40) ? "modulated" : "no",
- !!(wss & 0x80),
- (wss & 0x0100) ? "have TTX subtitles; " : "",
- subtitles[(wss >> 9) & 3],
- (wss & 0x0800) ? "surround sound; " : "",
- (wss & 0x1000) ? "asserted" : "unknown",
- (wss & 0x2000) ? "restricted" : "not restricted");
-}
-
-static int odd_parity(uint8_t c)
-{
- c ^= (c >> 4);
- c ^= (c >> 2);
- c ^= (c >> 1);
-
- return c & 1;
-}
-
-static void decode_xds(struct v4l2_sliced_vbi_data *s)
-{
- char c;
-
- //printf("XDS: %02x %02x: ", s->data[0], s->data[1]);
- c = odd_parity(s->data[0]) ? s->data[0] & 0x7F : '?';
- c = printable(c);
- //putchar(c);
- c = odd_parity(s->data[1]) ? s->data[1] & 0x7F : '?';
- c = printable(c);
- //putchar(c);
- //putchar('\n');
-}
-
-#define CC_SIZE 64
-
-static void decode_cc(struct v4l2_sliced_vbi_data *s)
-{
- static int xds_transport = 0;
- char c = s->data[0] & 0x7F;
- static char cc[CC_SIZE + 1];
- static char cc_last[2 + 1] = { 0, 0 };
- char cc_disp[CC_SIZE + 1];
- static int cc_idx;
-
- if (s->field) { /* field 2 */
- /* 0x01xx..0x0Exx ASCII_or_NUL[0..32] 0x0Fchks */
- if (odd_parity(s->data[0]) && (c >= 0x01 && c <= 0x0F)) {
- decode_xds(s);
- xds_transport = (c != 0x0F);
- } else if (xds_transport) {
- decode_xds(s);
- }
- return;
- }
-
- if (s->data[0] == 0x10 ||
- s->data[0] == 0x13 ||
- s->data[0] == 0x15 ||
- s->data[0] == 0x16 ||
- s->data[0] == 0x91 ||
- s->data[0] == 0x92 ||
- s->data[0] == 0x94 || s->data[0] == 0x97 || s->data[0] == 0x1c) {
- if (text_off) {
- if (s->data[0] == 0x94 &&
- (s->data[1] == 0xad || s->data[1] == 0x25)) {
- text_off = 0;
- }
- } else {
- if (s->data[0] == 0x1c &&
- (s->data[1] == 0x2a || s->data[1] == 0xab)) {
- text_off = 1;
- }
- }
- }
-
- if (text_off == 0) {
- c = odd_parity(s->data[0]) ? s->data[0] & 0x7F : '?';
-
- if (cc_idx >= CC_SIZE) {
- cc_idx = CC_SIZE - 2;
- memcpy(cc, cc + 2, cc_idx);
- }
- cc[cc_idx++] = c;
-
- c = odd_parity(s->data[1]) ? s->data[1] & 0x7F : '?';
-
- cc[cc_idx++] = c;
-
- cc[cc_idx] = 0;
- }
-
- if (cc_idx == CC_SIZE) {
- int x = 0, y = 0;
- int debug = 0;
-
- memset(cc_disp, 0, CC_SIZE);
-
- if (debug)
- fprintf(stderr, "\n");
- for (y = 0, x = 0; y < cc_idx;) {
-
- /* Control Code or Valid Character */
- if (valid_char(cc[y]) == 0) {
- if (debug) {
- if (cc[y] == 0x00)
- fprintf(stderr, "()");
- else
- fprintf(stderr, "(0x%02x)",
- cc[y]);
- }
-
- /* skip over control code */
- if (cc[y] >= 0x11 && cc[y] <= 0x1f) {
- if (debug) {
- if (cc[y + 1] == 0x00)
- fprintf(stderr, "()");
- else
- fprintf(stderr,
- "(0x%02x)",
- cc[y + 1]);
- }
-
- if (space_needed == 1) {
- space_needed = 0;
- cc_disp[x++] = ' ';
- lines++;
- } else if (cc[y] == 0x14
- && cc[y + 1] == 0x14) {
- space_needed = 0;
- cc_disp[x++] = ' ';
- lines++;
- }
-
- cc_last[0] = cc[y];
- cc_last[1] = cc[y + 1];
- y += 2;
- } else {
- cc_last[0] = cc_last[1];
- cc_last[1] = cc[y];
- y++;
- }
- } else {
- if (debug)
- fprintf(stderr, "(%c)", cc[y] & 0x7F);
-
- /* Record character */
- if ((cc[y] & 0x7F) == '\n') {
- cc_disp[x] = ' ';
- lines++;
- } else if (cc_last[1] == 0x2B
- && cc_last[0] == 0x14
- && (cc[y] & 0x7F) == '@') {
- /* Do Nothing */
- cc_last[0] = cc_last[1];
- cc_last[1] = cc[y];
- y++;
- continue;
- } else if ((cc[y] & 0x7F) != '\n') {
- cc_disp[x] = cc[y] & 0x7F;
- lines++;
- } else {
- printf("\nOdd Character (%c)\n",
- cc[y] & 0x7F);
- }
-
- space_needed = 1;
- x++;
- cc_last[0] = cc_last[1];
- cc_last[1] = cc[y];
- y++;
- }
-
- /* Insert CC_SIZE char Line Break */
- if (lines >= CC_SIZE && cc_disp[x - 1] == ' ') {
- cc_disp[x++] = '\n';
- lines = 0;
- space_needed = 0;
- }
- }
- if (debug)
- fprintf(stderr, "\n");
- printf("%s", cc_disp);
- memset(cc_disp, 0, CC_SIZE);
- //memset(cc, 0, CC_SIZE);
-
- cc_idx = 0;
- }
-}
-
-const uint8_t vbi_bit_reverse[256] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
-};
-
-#define printable(c) ((((c) & 0x7F) < 0x20 || ((c) & 0x7F) > 0x7E) ? '.' : ((c) & 0x7F))
-
-#define PIL(day, mon, hour, min) \
- (((day) << 15) + ((mon) << 11) + ((hour) << 6) + ((min) << 0))
-
-static void dump_pil(int pil)
-{
- int day, mon, hour, min;
-
- day = pil >> 15;
- mon = (pil >> 11) & 0xF;
- hour = (pil >> 6) & 0x1F;
- min = pil & 0x3F;
-
- if (pil == PIL(0, 15, 31, 63))
- printf(" PDC: Timer-control (no PDC)\n");
- else if (pil == PIL(0, 15, 30, 63))
- printf(" PDC: Recording inhibit/terminate\n");
- else if (pil == PIL(0, 15, 29, 63))
- printf(" PDC: Interruption\n");
- else if (pil == PIL(0, 15, 28, 63))
- printf(" PDC: Continue\n");
- else if (pil == PIL(31, 15, 31, 63))
- printf(" PDC: No time\n");
- else
- printf(" PDC: %05x, 200X-%02d-%02d %02d:%02d\n",
- pil, mon, day, hour, min);
-}
-
-void decode_vps(struct v4l2_sliced_vbi_data *s)
-{
- static char pr_label[20];
- static char label[20];
- static int l = 0;
- int cni, pcs, pty, pil;
- int c;
- unsigned char *buf = s->data;
-
- c = vbi_bit_reverse[buf[1]];
-
- if ((int8_t) c < 0) {
- label[l] = 0;
- memcpy(pr_label, label, sizeof(pr_label));
- l = 0;
- }
-
- c &= 0x7F;
-
- label[l] = printable(c);
-
- l = (l + 1) % 16;
-
- printf("VPS: 3-10: %02x %02x %02x %02x %02x %02x %02x %02x (\"%s\")\n",
- buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7],
- pr_label);
-
- pcs = buf[2] >> 6;
-
- cni = +((buf[10] & 3) << 10)
- + ((buf[11] & 0xC0) << 2)
- + ((buf[8] & 0xC0) << 0)
- + (buf[11] & 0x3F);
-
- pil = ((buf[8] & 0x3F) << 14) + (buf[9] << 6) + (buf[10] >> 2);
-
- pty = buf[12];
-
- printf(" CNI: %04x PCS: %d PTY: %d ", cni, pcs, pty);
-
- dump_pil(pil);
-}
-
-void process(struct v4l2_sliced_vbi_data *s)
-{
- if (s->id == 0)
- return;
-
- //printf("%04d: line %02u field %d type %x\n", frames, s->line, s->field, s->id);
- switch (s->id) {
- case V4L2_SLICED_TELETEXT_B:
- printf("teletext\n");
- break;
- case V4L2_SLICED_VPS:
- if (s->line != 16 || s->field)
- break;
- decode_vps(s);
- break;
- case V4L2_SLICED_WSS_625:
- if (s->line != 23 || s->field)
- break;
- decode_wss(s);
- break;
- case V4L2_SLICED_CAPTION_525:
- if (s->line != 21)
- break;
- decode_cc(s);
- break;
- default:
- printf("unknown\n");
- break;
- }
-}
-
-int main(int argc, char **argv)
-{
- char *device = "/dev/vbi0";
- struct v4l2_format fmt;
- v4l2_std_id std;
- struct v4l2_sliced_vbi_data *buf;
- int fh;
-
- if (argc == 2)
- device = argv[1];
- fh = open(device, O_RDONLY);
-
- if (fh == -1) {
- fprintf(stderr, "cannot open %s\n", device);
- return 1;
- }
-
- setbuf(stdout, NULL);
-
- ioctl(fh, VIDIOC_G_STD, &std);
- fmt.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
- fmt.fmt.sliced.service_set = (std & V4L2_STD_NTSC) ? V4L2_SLICED_VBI_525 : V4L2_SLICED_VBI_625;
- fmt.fmt.sliced.reserved[0] = 0;
- fmt.fmt.sliced.reserved[1] = 0;
- if (ioctl(fh, VIDIOC_S_FMT, &fmt) < 0) {
- perror("vbi");
- close(fh);
- return 1;
- }
-
- fprintf(stderr, "%08x, %d\n", fmt.fmt.sliced.service_set, fmt.fmt.sliced.io_size);
- buf = malloc(fmt.fmt.sliced.io_size);
- for (;;) {
- int size = read(fh, buf, fmt.fmt.sliced.io_size);
- int i;
-
- if (size <= 0)
- break;
- frames++;
- for (i = 0; i < size / sizeof(struct v4l2_sliced_vbi_data); i++) {
- process(&buf[i]);
- }
- }
- close(fh);
- return 0;
-}
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