mirror of
https://github.com/mpv-player/mpv
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1162 lines
39 KiB
C
1162 lines
39 KiB
C
/*
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dvbstream
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(C) Dave Chapman <dave@dchapman.com> 2001, 2002.
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(C) Rozhuk Ivan <rozhuk.im@gmail.com> 2016 - 2017
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Original authors: Nico, probably Arpi
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Some code based on dvbstream, 0.4.3-pre3 (CVS checkout),
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http://sourceforge.net/projects/dvbtools/
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Modified for use with MPlayer, for details see the changelog at
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http://svn.mplayerhq.hu/mplayer/trunk/
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$Id$
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Copyright notice:
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <poll.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "osdep/io.h"
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#include "misc/ctype.h"
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#include "osdep/timer.h"
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#include "stream.h"
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#include "common/tags.h"
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#include "options/m_config.h"
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#include "options/m_option.h"
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#include "options/options.h"
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#include "options/path.h"
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#include "osdep/threads.h"
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#include "dvbin.h"
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#include "dvb_tune.h"
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#if !HAVE_GPL
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#error GPL only
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#endif
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#define CHANNEL_LINE_LEN 256
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#define OPT_BASE_STRUCT dvb_opts_t
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static dvb_state_t *global_dvb_state = NULL;
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static mp_static_mutex global_dvb_state_lock = MP_STATIC_MUTEX_INITIALIZER;
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const struct m_sub_options stream_dvb_conf = {
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.opts = (const m_option_t[]) {
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{"prog", OPT_STRING(cfg_prog), .flags = UPDATE_DVB_PROG},
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{"card", OPT_INT(cfg_devno), M_RANGE(0, MAX_ADAPTERS-1)},
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{"timeout", OPT_INT(cfg_timeout), M_RANGE(1, 30)},
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{"file", OPT_STRING(cfg_file), .flags = M_OPT_FILE},
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{"full-transponder", OPT_BOOL(cfg_full_transponder)},
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{"channel-switch-offset", OPT_INT(cfg_channel_switch_offset),
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.flags = UPDATE_DVB_PROG},
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{0}
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},
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.size = sizeof(dvb_opts_t),
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.defaults = &(const dvb_opts_t){
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.cfg_prog = NULL,
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.cfg_timeout = 30,
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},
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};
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void dvbin_close(stream_t *stream);
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static fe_code_rate_t parse_fec(const char *cr)
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{
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if (!strcmp(cr, "FEC_1_2")) {
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return FEC_1_2;
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} else if (!strcmp(cr, "FEC_2_3")) {
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return FEC_2_3;
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} else if (!strcmp(cr, "FEC_3_4")) {
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return FEC_3_4;
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} else if (!strcmp(cr, "FEC_4_5")) {
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return FEC_4_5;
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} else if (!strcmp(cr, "FEC_5_6")) {
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return FEC_5_6;
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} else if (!strcmp(cr, "FEC_6_7")) {
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return FEC_6_7;
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} else if (!strcmp(cr, "FEC_7_8")) {
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return FEC_7_8;
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} else if (!strcmp(cr, "FEC_8_9")) {
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return FEC_8_9;
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} else if (!strcmp(cr, "FEC_NONE")) {
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return FEC_NONE;
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}
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return FEC_NONE;
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}
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static fe_modulation_t parse_vdr_modulation(const char** modstring)
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{
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const static struct { const char *s; fe_modulation_t v; } table[] = {
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{ "16", QAM_16 },
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{ "32", QAM_32 },
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{ "64", QAM_64 },
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{ "128", QAM_128 },
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{ "256", QAM_256 },
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{ "998", QAM_AUTO },
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{ "2", QPSK },
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{ "5", PSK_8 },
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{ "6", APSK_16 },
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{ "7", APSK_32 },
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{ "10", VSB_8 },
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{ "11", VSB_16 },
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{ "12", DQPSK },
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};
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for (int i = 0; i < MP_ARRAY_SIZE(table); i++) {
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if (!strncmp(*modstring, table[i].s, strlen(table[i].s))) {
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*modstring += strlen(table[i].s);
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return table[i].v;
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}
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}
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return QAM_AUTO;
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}
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static void parse_vdr_par_string(const char *vdr_par_str, dvb_channel_t *ptr)
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{
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//FIXME: There is more information in this parameter string, especially related
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// to non-DVB-S reception.
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if (!vdr_par_str[0])
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return;
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const char *vdr_par = &vdr_par_str[0];
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while (vdr_par && *vdr_par) {
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switch (mp_toupper(*vdr_par)) {
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case 'H':
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ptr->pol = 'H';
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vdr_par++;
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break;
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case 'V':
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ptr->pol = 'V';
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vdr_par++;
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break;
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case 'S':
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vdr_par++;
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ptr->is_dvb_x2 = *vdr_par == '1';
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vdr_par++;
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break;
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case 'P':
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vdr_par++;
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char *endptr = NULL;
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errno = 0;
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int n = strtol(vdr_par, &endptr, 10);
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if (!errno && endptr != vdr_par) {
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ptr->stream_id = n;
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vdr_par = endptr;
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}
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break;
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case 'I':
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vdr_par++;
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ptr->inv = (*vdr_par == '1') ? INVERSION_ON : INVERSION_OFF;
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vdr_par++;
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break;
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case 'M':
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vdr_par++;
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ptr->mod = parse_vdr_modulation(&vdr_par);
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break;
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default:
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vdr_par++;
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}
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}
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}
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static char *dvb_strtok_r(char *s, const char *sep, char **p)
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{
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if (!s && !(s = *p))
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return NULL;
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/* Skip leading separators. */
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s += strspn(s, sep);
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/* s points at first non-separator, or end of string. */
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if (!*s)
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return *p = 0;
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/* Move *p to next separator. */
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*p = s + strcspn(s, sep);
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if (**p) {
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*(*p)++ = 0;
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} else {
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*p = 0;
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}
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return s;
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}
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static bool parse_pid_string(struct mp_log *log, char *pid_string,
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dvb_channel_t *ptr)
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{
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if (!pid_string[0])
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return false;
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int pcnt = 0;
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/* These tokens also catch vdr-style PID lists.
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* They can contain 123=deu@3,124=eng+jap@4;125
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* 3 and 4 are codes for codec type, =langLeft+langRight is allowed,
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* and ; may separate a dolby channel.
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* With the numChars-test and the full token-list, all is handled
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* gracefully.
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*/
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const char *tokens = "+,;";
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char *pidPart;
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char *savePtr = NULL;
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pidPart = dvb_strtok_r(pid_string, tokens, &savePtr);
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while (pidPart != NULL) {
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if (ptr->pids_cnt >= DMX_FILTER_SIZE - 1) {
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mp_verbose(log, "Maximum number of PIDs for one channel "
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"reached, ignoring further ones!\n");
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break;
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}
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int numChars = 0;
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int pid = 0;
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pcnt += sscanf(pidPart, "%d%n", &pid, &numChars);
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if (numChars > 0) {
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ptr->pids[ptr->pids_cnt] = pid;
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ptr->pids_cnt++;
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}
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pidPart = dvb_strtok_r(NULL, tokens, &savePtr);
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}
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return pcnt > 0;
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}
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static dvb_channels_list_t *dvb_get_channels(struct mp_log *log,
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dvb_channels_list_t *list_add,
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int cfg_full_transponder,
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char *filename,
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unsigned int frontend,
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int delsys, unsigned int delsys_mask)
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{
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dvb_channels_list_t *list = list_add;
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if (!filename)
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return list;
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const char *cbl_conf =
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"%d:%255[^:]:%d:%255[^:]:%255[^:]:%255[^:]:%255[^:]\n";
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const char *sat_conf = "%d:%c:%d:%d:%255[^:]:%255[^:]\n";
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const char *ter_conf =
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"%d:%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255[^:]\n";
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const char *atsc_conf = "%d:%255[^:]:%255[^:]:%255[^:]\n";
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const char *vdr_conf =
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"%d:%255[^:]:%255[^:]:%d:%255[^:]:%255[^:]:%255[^:]:%*255[^:]:%d:%*d:%*d:%*d\n%n";
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mp_verbose(log, "Reading config file %s for type %s\n",
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filename, get_dvb_delsys(delsys));
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FILE *f = fopen(filename, "r");
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if (!f) {
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mp_fatal(log, "Can't open file %s\n", filename);
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return list;
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}
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if (!list)
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list = talloc_zero(NULL, dvb_channels_list_t);
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while (!feof(f)) {
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char line[CHANNEL_LINE_LEN];
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if (!fgets(line, CHANNEL_LINE_LEN, f))
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continue;
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if (line[0] == '#' || strlen(line) == 0)
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continue;
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dvb_channel_t chn = {0};
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dvb_channel_t *ptr = &chn;
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char tmp_lcr[256], tmp_hier[256], inv[256], bw[256], cr[256], mod[256],
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transm[256], gi[256], vpid_str[256], apid_str[256], tpid_str[256],
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vdr_par_str[256], vdr_loc_str[256];
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vpid_str[0] = apid_str[0] = tpid_str[0] = 0;
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vdr_loc_str[0] = vdr_par_str[0] = 0;
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char *colon = strchr(line, ':');
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if (!colon)
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continue;
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int k = colon - line;
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if (!k)
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continue;
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// In some modern VDR-style configs, channel name also has bouquet after ;.
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// Parse that off, we ignore it.
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char *bouquet_sep = strchr(line, ';');
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{
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int namelen = k;
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if (bouquet_sep && bouquet_sep < colon)
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namelen = bouquet_sep - line;
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ptr->name = talloc_strndup(list, line, namelen);
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}
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k++;
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ptr->pids_cnt = 0;
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ptr->freq = 0;
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ptr->service_id = -1;
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ptr->is_dvb_x2 = false;
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ptr->frontend = frontend;
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ptr->delsys = delsys;
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ptr->diseqc = 0;
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ptr->stream_id = NO_STREAM_ID_FILTER;
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ptr->inv = INVERSION_AUTO;
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ptr->bw = BANDWIDTH_AUTO;
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ptr->cr = FEC_AUTO;
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ptr->cr_lp = FEC_AUTO;
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ptr->mod = QAM_AUTO;
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ptr->hier = HIERARCHY_AUTO;
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ptr->gi = GUARD_INTERVAL_AUTO;
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ptr->trans = TRANSMISSION_MODE_AUTO;
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// Check if VDR-type channels.conf-line - then full line is consumed by the scan.
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int fields, num_chars = 0;
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fields = sscanf(&line[k], vdr_conf,
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&ptr->freq, vdr_par_str, vdr_loc_str, &ptr->srate,
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vpid_str, apid_str, tpid_str, &ptr->service_id,
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&num_chars);
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bool is_vdr_conf = (num_chars == strlen(&line[k]));
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// Special case: DVB-T style ZAP config also has 13 columns.
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// Most columns should have non-numeric content, but some channel list generators insert 0
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// if a value is not used. However, INVERSION_* should always set after frequency.
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if (is_vdr_conf && !strncmp(vdr_par_str, "INVERSION_", 10)) {
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is_vdr_conf = false;
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}
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if (is_vdr_conf) {
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// Modulation parsed here, not via old xine-parsing path.
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mod[0] = '\0';
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// It's a VDR-style config line.
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parse_vdr_par_string(vdr_par_str, ptr);
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// Frequency in VDR-style config files is in MHz for DVB-S,
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// and may be in MHz, kHz or Hz for DVB-C and DVB-T.
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// General rule to get useful units is to multiply by 1000 until value is larger than 1000000.
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while (ptr->freq < 1000000U) {
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ptr->freq *= 1000U;
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}
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// Symbol rate in VDR-style config files is divided by 1000.
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ptr->srate *= 1000U;
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switch (delsys) {
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case SYS_DVBT:
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case SYS_DVBT2:
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/* Fix delsys value. */
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if (ptr->is_dvb_x2) {
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ptr->delsys = delsys = SYS_DVBT2;
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} else {
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ptr->delsys = delsys = SYS_DVBT;
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}
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if (!DELSYS_IS_SET(delsys_mask, delsys))
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continue; /* Skip channel. */
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mp_verbose(log, "VDR, %s, NUM: %d, NUM_FIELDS: %d, NAME: %s, "
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"FREQ: %d, SRATE: %d, T2: %s\n",
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get_dvb_delsys(delsys),
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list->NUM_CHANNELS, fields,
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ptr->name, ptr->freq, ptr->srate,
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(delsys == SYS_DVBT2) ? "yes" : "no");
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break;
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case SYS_DVBC_ANNEX_A:
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case SYS_DVBC_ANNEX_C:
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case SYS_ATSC:
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case SYS_DVBC_ANNEX_B:
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case SYS_ISDBT:
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mp_verbose(log, "VDR, %s, NUM: %d, NUM_FIELDS: %d, NAME: %s, "
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"FREQ: %d, SRATE: %d\n",
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get_dvb_delsys(delsys),
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list->NUM_CHANNELS, fields,
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ptr->name, ptr->freq, ptr->srate);
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break;
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case SYS_DVBS:
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case SYS_DVBS2:
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/* Fix delsys value. */
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if (ptr->is_dvb_x2) {
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ptr->delsys = delsys = SYS_DVBS2;
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} else {
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ptr->delsys = delsys = SYS_DVBS;
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}
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if (!DELSYS_IS_SET(delsys_mask, delsys))
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continue; /* Skip channel. */
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if (vdr_loc_str[0]) {
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// In older vdr config format, this field contained the DISEQc information.
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// If it is numeric, assume that's it.
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int diseqc_info = 0;
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int valid_digits = 0;
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if (sscanf(vdr_loc_str, "%d%n", &diseqc_info,
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&valid_digits) == 1)
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{
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if (valid_digits == strlen(vdr_loc_str)) {
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ptr->diseqc = (unsigned int)diseqc_info;
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if (ptr->diseqc > 4)
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continue;
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if (ptr->diseqc > 0)
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ptr->diseqc--;
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}
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}
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}
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mp_verbose(log, "VDR, %s, NUM: %d, NUM_FIELDS: %d, NAME: %s, "
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"FREQ: %d, SRATE: %d, POL: %c, DISEQC: %d, S2: %s, "
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"StreamID: %d, SID: %d\n",
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get_dvb_delsys(delsys),
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list->NUM_CHANNELS,
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fields, ptr->name, ptr->freq, ptr->srate, ptr->pol,
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ptr->diseqc, (delsys == SYS_DVBS2) ? "yes" : "no",
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ptr->stream_id, ptr->service_id);
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break;
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default:
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break;
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}
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} else {
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// ZAP style channel config file.
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switch (delsys) {
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case SYS_DVBT:
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case SYS_DVBT2:
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case SYS_ISDBT:
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fields = sscanf(&line[k], ter_conf,
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&ptr->freq, inv, bw, cr, tmp_lcr, mod,
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transm, gi, tmp_hier, vpid_str, apid_str);
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mp_verbose(log, "%s, NUM: %d, NUM_FIELDS: %d, NAME: %s, FREQ: %d\n",
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get_dvb_delsys(delsys), list->NUM_CHANNELS,
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fields, ptr->name, ptr->freq);
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break;
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case SYS_DVBC_ANNEX_A:
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case SYS_DVBC_ANNEX_C:
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fields = sscanf(&line[k], cbl_conf,
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&ptr->freq, inv, &ptr->srate,
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cr, mod, vpid_str, apid_str);
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mp_verbose(log, "%s, NUM: %d, NUM_FIELDS: %d, NAME: %s, FREQ: %d, "
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"SRATE: %d\n",
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get_dvb_delsys(delsys),
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list->NUM_CHANNELS, fields, ptr->name,
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ptr->freq, ptr->srate);
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break;
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case SYS_ATSC:
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case SYS_DVBC_ANNEX_B:
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fields = sscanf(&line[k], atsc_conf,
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&ptr->freq, mod, vpid_str, apid_str);
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mp_verbose(log, "%s, NUM: %d, NUM_FIELDS: %d, NAME: %s, FREQ: %d\n",
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get_dvb_delsys(delsys), list->NUM_CHANNELS,
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fields, ptr->name, ptr->freq);
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break;
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case SYS_DVBS:
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|
case SYS_DVBS2:
|
|
fields = sscanf(&line[k], sat_conf,
|
|
&ptr->freq, &ptr->pol, &ptr->diseqc, &ptr->srate,
|
|
vpid_str,
|
|
apid_str);
|
|
ptr->pol = mp_toupper(ptr->pol);
|
|
ptr->freq *= 1000U;
|
|
ptr->srate *= 1000U;
|
|
if (ptr->diseqc > 4)
|
|
continue;
|
|
if (ptr->diseqc > 0)
|
|
ptr->diseqc--;
|
|
mp_verbose(log, "%s, NUM: %d, NUM_FIELDS: %d, NAME: %s, FREQ: %d, "
|
|
"SRATE: %d, POL: %c, DISEQC: %d\n",
|
|
get_dvb_delsys(delsys),
|
|
list->NUM_CHANNELS, fields, ptr->name, ptr->freq,
|
|
ptr->srate, ptr->pol, ptr->diseqc);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (parse_pid_string(log, vpid_str, ptr))
|
|
fields++;
|
|
if (parse_pid_string(log, apid_str, ptr))
|
|
fields++;
|
|
/* If we do not know the service_id, PMT can not be extracted.
|
|
Teletext decoding will fail without PMT. */
|
|
if (ptr->service_id != -1) {
|
|
if (parse_pid_string(log, tpid_str, ptr))
|
|
fields++;
|
|
}
|
|
|
|
|
|
if (fields < 2 || ptr->pids_cnt == 0 || ptr->freq == 0 ||
|
|
strlen(ptr->name) == 0)
|
|
continue;
|
|
|
|
/* Add some PIDs which are mandatory in DVB,
|
|
* and contain human-readable helpful data. */
|
|
|
|
/* This is the STD, the service description table.
|
|
* It contains service names and such, ffmpeg decodes it. */
|
|
ptr->pids[ptr->pids_cnt] = 0x0011;
|
|
ptr->pids_cnt++;
|
|
|
|
/* This is the EIT, which contains EPG data.
|
|
* ffmpeg can not decode it (yet), but e.g. VLC
|
|
* shows what was recorded. */
|
|
ptr->pids[ptr->pids_cnt] = 0x0012;
|
|
ptr->pids_cnt++;
|
|
|
|
if (ptr->service_id != -1) {
|
|
/* We have the PMT-PID in addition.
|
|
This will be found later, when we tune to the channel.
|
|
Push back here to create the additional demux. */
|
|
ptr->pids[ptr->pids_cnt] = -1; // Placeholder.
|
|
ptr->pids_cnt++;
|
|
}
|
|
|
|
bool has8192 = false, has0 = false;
|
|
for (int cnt = 0; cnt < ptr->pids_cnt; cnt++) {
|
|
if (ptr->pids[cnt] == 8192)
|
|
has8192 = true;
|
|
if (ptr->pids[cnt] == 0)
|
|
has0 = true;
|
|
}
|
|
|
|
/* 8192 is the pseudo-PID for full TP dump,
|
|
enforce that if requested. */
|
|
if (!has8192 && cfg_full_transponder)
|
|
has8192 = 1;
|
|
if (has8192) {
|
|
ptr->pids[0] = 8192;
|
|
ptr->pids_cnt = 1;
|
|
} else if (!has0) {
|
|
ptr->pids[ptr->pids_cnt] = 0; //PID 0 is the PAT
|
|
ptr->pids_cnt++;
|
|
}
|
|
|
|
mp_verbose(log, " PIDS: ");
|
|
for (int cnt = 0; cnt < ptr->pids_cnt; cnt++)
|
|
mp_verbose(log, " %d ", ptr->pids[cnt]);
|
|
mp_verbose(log, "\n");
|
|
|
|
switch (delsys) {
|
|
case SYS_DVBT:
|
|
case SYS_DVBT2:
|
|
case SYS_ISDBT:
|
|
case SYS_DVBC_ANNEX_A:
|
|
case SYS_DVBC_ANNEX_C:
|
|
if (!strcmp(inv, "INVERSION_ON")) {
|
|
ptr->inv = INVERSION_ON;
|
|
} else if (!strcmp(inv, "INVERSION_OFF")) {
|
|
ptr->inv = INVERSION_OFF;
|
|
}
|
|
|
|
ptr->cr = parse_fec(cr);
|
|
}
|
|
|
|
switch (delsys) {
|
|
case SYS_DVBT:
|
|
case SYS_DVBT2:
|
|
case SYS_ISDBT:
|
|
case SYS_DVBC_ANNEX_A:
|
|
case SYS_DVBC_ANNEX_C:
|
|
case SYS_ATSC:
|
|
case SYS_DVBC_ANNEX_B:
|
|
if (!strcmp(mod, "QAM_128")) {
|
|
ptr->mod = QAM_128;
|
|
} else if (!strcmp(mod, "QAM_256")) {
|
|
ptr->mod = QAM_256;
|
|
} else if (!strcmp(mod, "QAM_64")) {
|
|
ptr->mod = QAM_64;
|
|
} else if (!strcmp(mod, "QAM_32")) {
|
|
ptr->mod = QAM_32;
|
|
} else if (!strcmp(mod, "QAM_16")) {
|
|
ptr->mod = QAM_16;
|
|
} else if (!strcmp(mod, "VSB_8") || !strcmp(mod, "8VSB")) {
|
|
ptr->mod = VSB_8;
|
|
} else if (!strcmp(mod, "VSB_16") || !strcmp(mod, "16VSB")) {
|
|
ptr->mod = VSB_16;
|
|
}
|
|
}
|
|
|
|
/* Modulation defines real delsys for ATSC:
|
|
Terrestrial (VSB) is SYS_ATSC, Cable (QAM) is SYS_DVBC_ANNEX_B. */
|
|
if (delsys == SYS_ATSC || delsys == SYS_DVBC_ANNEX_B) {
|
|
if (ptr->mod == VSB_8 || ptr->mod == VSB_16) {
|
|
delsys = SYS_ATSC;
|
|
} else {
|
|
delsys = SYS_DVBC_ANNEX_B;
|
|
}
|
|
if (!DELSYS_IS_SET(delsys_mask, delsys))
|
|
continue; /* Skip channel. */
|
|
mp_verbose(log, "Switched to delivery system for ATSC: %s (guessed from modulation)\n",
|
|
get_dvb_delsys(delsys));
|
|
}
|
|
|
|
switch (delsys) {
|
|
case SYS_DVBT:
|
|
case SYS_DVBT2:
|
|
case SYS_ISDBT:
|
|
if (!strcmp(bw, "BANDWIDTH_5_MHZ")) {
|
|
ptr->bw = BANDWIDTH_5_MHZ;
|
|
} else if (!strcmp(bw, "BANDWIDTH_6_MHZ")) {
|
|
ptr->bw = BANDWIDTH_6_MHZ;
|
|
} else if (!strcmp(bw, "BANDWIDTH_7_MHZ")) {
|
|
ptr->bw = BANDWIDTH_7_MHZ;
|
|
} else if (!strcmp(bw, "BANDWIDTH_8_MHZ")) {
|
|
ptr->bw = BANDWIDTH_8_MHZ;
|
|
} else if (!strcmp(bw, "BANDWIDTH_10_MHZ")) {
|
|
ptr->bw = BANDWIDTH_10_MHZ;
|
|
}
|
|
|
|
|
|
if (!strcmp(transm, "TRANSMISSION_MODE_2K")) {
|
|
ptr->trans = TRANSMISSION_MODE_2K;
|
|
} else if (!strcmp(transm, "TRANSMISSION_MODE_8K")) {
|
|
ptr->trans = TRANSMISSION_MODE_8K;
|
|
} else if (!strcmp(transm, "TRANSMISSION_MODE_AUTO")) {
|
|
ptr->trans = TRANSMISSION_MODE_AUTO;
|
|
}
|
|
|
|
if (!strcmp(gi, "GUARD_INTERVAL_1_32")) {
|
|
ptr->gi = GUARD_INTERVAL_1_32;
|
|
} else if (!strcmp(gi, "GUARD_INTERVAL_1_16")) {
|
|
ptr->gi = GUARD_INTERVAL_1_16;
|
|
} else if (!strcmp(gi, "GUARD_INTERVAL_1_8")) {
|
|
ptr->gi = GUARD_INTERVAL_1_8;
|
|
} else if (!strcmp(gi, "GUARD_INTERVAL_1_4")) {
|
|
ptr->gi = GUARD_INTERVAL_1_4;
|
|
}
|
|
|
|
ptr->cr_lp = parse_fec(tmp_lcr);
|
|
|
|
if (!strcmp(tmp_hier, "HIERARCHY_1")) {
|
|
ptr->hier = HIERARCHY_1;
|
|
} else if (!strcmp(tmp_hier, "HIERARCHY_2")) {
|
|
ptr->hier = HIERARCHY_2;
|
|
} else if (!strcmp(tmp_hier, "HIERARCHY_4")) {
|
|
ptr->hier = HIERARCHY_4;
|
|
} else if (!strcmp(tmp_hier, "HIERARCHY_NONE")) {
|
|
ptr->hier = HIERARCHY_NONE;
|
|
}
|
|
}
|
|
|
|
MP_TARRAY_APPEND(list, list->channels, list->NUM_CHANNELS, *ptr);
|
|
}
|
|
|
|
fclose(f);
|
|
if (list->NUM_CHANNELS == 0)
|
|
TA_FREEP(&list);
|
|
|
|
return list;
|
|
}
|
|
|
|
static int dvb_streaming_read(stream_t *stream, void *buffer, int size)
|
|
{
|
|
dvb_priv_t *priv = stream->priv;
|
|
dvb_state_t *state = priv->state;
|
|
int pos = 0;
|
|
int tries = state->retry;
|
|
const int fd = state->dvr_fd;
|
|
|
|
MP_TRACE(stream, "dvb_streaming_read(%d)\n", size);
|
|
|
|
struct pollfd pfds[1];
|
|
pfds[0].fd = fd;
|
|
pfds[0].events = POLLIN | POLLPRI;
|
|
|
|
while (pos < size) {
|
|
int rk = read(fd, (char *)buffer + pos, (size - pos));
|
|
if (rk <= 0) {
|
|
if (pos || tries == 0)
|
|
break;
|
|
tries--;
|
|
if (poll(pfds, 1, 2000) <= 0) {
|
|
MP_ERR(stream, "dvb_streaming_read: failed with "
|
|
"errno %d when reading %d bytes\n", errno, size - pos);
|
|
errno = 0;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
pos += rk;
|
|
MP_TRACE(stream, "got %d bytes\n", pos);
|
|
}
|
|
|
|
if (!pos)
|
|
MP_ERR(stream, "dvb_streaming_read: returning 0 bytes\n");
|
|
|
|
// Check if config parameters have been updated.
|
|
dvb_update_config(stream);
|
|
|
|
return pos;
|
|
}
|
|
|
|
int dvb_set_channel(stream_t *stream, unsigned int adapter, unsigned int n)
|
|
{
|
|
dvb_priv_t *priv = stream->priv;
|
|
dvb_state_t *state = priv->state;
|
|
|
|
assert(adapter < state->adapters_count);
|
|
int devno = state->adapters[adapter].devno;
|
|
dvb_channels_list_t *new_list = state->adapters[adapter].list;
|
|
assert(n < new_list->NUM_CHANNELS);
|
|
dvb_channel_t *channel = &(new_list->channels[n]);
|
|
|
|
if (state->is_on) { //the fds are already open and we have to stop the demuxers
|
|
/* Remove all demuxes. */
|
|
dvb_fix_demuxes(priv, 0);
|
|
|
|
state->retry = 0;
|
|
// empty both the stream's and driver's buffer
|
|
char buf[4096];
|
|
while (dvb_streaming_read(stream, buf, sizeof(buf)) > 0) {}
|
|
|
|
if (state->cur_adapter != adapter ||
|
|
state->cur_frontend != channel->frontend) {
|
|
dvbin_close(stream);
|
|
if (!dvb_open_devices(priv, devno, channel->frontend, channel->pids_cnt)) {
|
|
MP_ERR(stream, "dvb_set_channel: couldn't open devices of adapter "
|
|
"%d\n", devno);
|
|
return 0;
|
|
}
|
|
} else {
|
|
// close all demux_fds with pos > pids required for the new channel
|
|
// or open other demux_fds if we have too few
|
|
if (!dvb_fix_demuxes(priv, channel->pids_cnt))
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (!dvb_open_devices(priv, devno, channel->frontend, channel->pids_cnt)) {
|
|
MP_ERR(stream, "dvb_set_channel: couldn't open devices of adapter "
|
|
"%d\n", devno);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
state->retry = 5;
|
|
new_list->current = n;
|
|
MP_VERBOSE(stream, "dvb_set_channel: new channel name=\"%s\", adapter: %d, "
|
|
"channel: %d\n", channel->name, devno, n);
|
|
|
|
if (channel->freq != state->last_freq) {
|
|
if (!dvb_tune(priv, channel->delsys, channel->freq,
|
|
channel->pol, channel->srate, channel->diseqc,
|
|
channel->stream_id, channel->inv,
|
|
channel->mod, channel->gi,
|
|
channel->trans, channel->bw, channel->cr, channel->cr_lp,
|
|
channel->hier, priv->opts->cfg_timeout))
|
|
return 0;
|
|
}
|
|
|
|
state->is_on = true;
|
|
state->last_freq = channel->freq;
|
|
state->cur_adapter = adapter;
|
|
state->cur_frontend = channel->frontend;
|
|
|
|
if (channel->service_id != -1) {
|
|
/* We need the PMT-PID in addition.
|
|
If it has not yet beem resolved, do it now. */
|
|
for (int i = 0; i < channel->pids_cnt; i++) {
|
|
if (channel->pids[i] == -1) {
|
|
MP_VERBOSE(stream, "dvb_set_channel: PMT-PID for service %d "
|
|
"not resolved yet, parsing PAT...\n",
|
|
channel->service_id);
|
|
int pmt_pid = dvb_get_pmt_pid(priv, adapter, channel->service_id);
|
|
MP_VERBOSE(stream, "found PMT-PID: %d\n", pmt_pid);
|
|
channel->pids[i] = pmt_pid;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// sets demux filters and restart the stream
|
|
for (int i = 0; i < channel->pids_cnt; i++) {
|
|
if (channel->pids[i] == -1) {
|
|
// In case PMT was not resolved, skip it here.
|
|
MP_ERR(stream, "dvb_set_channel: PMT-PID not found, "
|
|
"teletext decoding may fail.\n");
|
|
continue;
|
|
}
|
|
if (!dvb_set_ts_filt(priv, state->demux_fds[i], channel->pids[i],
|
|
DMX_PES_OTHER))
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dvbin_stream_control(struct stream *s, int cmd, void *arg)
|
|
{
|
|
dvb_priv_t *priv = s->priv;
|
|
dvb_state_t *state = priv->state;
|
|
|
|
if (state->cur_adapter >= state->adapters_count)
|
|
return STREAM_ERROR;
|
|
dvb_channels_list_t *list = state->adapters[state->cur_adapter].list;
|
|
|
|
switch (cmd) {
|
|
case STREAM_CTRL_GET_METADATA: {
|
|
struct mp_tags *metadata = talloc_zero(NULL, struct mp_tags);
|
|
char *progname = list->channels[list->current].name;
|
|
mp_tags_set_str(metadata, "title", progname);
|
|
*(struct mp_tags **)arg = metadata;
|
|
return STREAM_OK;
|
|
}
|
|
}
|
|
return STREAM_UNSUPPORTED;
|
|
}
|
|
|
|
void dvbin_close(stream_t *stream)
|
|
{
|
|
dvb_priv_t *priv = stream->priv;
|
|
dvb_state_t *state = priv->state;
|
|
|
|
if (state->switching_channel && state->is_on) {
|
|
// Prevent state destruction, reset channel-switch.
|
|
state->switching_channel = false;
|
|
mp_mutex_lock(&global_dvb_state_lock);
|
|
global_dvb_state->stream_used = false;
|
|
mp_mutex_unlock(&global_dvb_state_lock);
|
|
return;
|
|
}
|
|
|
|
for (int i = state->demux_fds_cnt - 1; i >= 0; i--) {
|
|
state->demux_fds_cnt--;
|
|
close(state->demux_fds[i]);
|
|
}
|
|
close(state->dvr_fd);
|
|
close(state->fe_fd);
|
|
state->fe_fd = state->dvr_fd = -1;
|
|
|
|
state->is_on = false;
|
|
state->cur_adapter = -1;
|
|
state->cur_frontend = -1;
|
|
|
|
mp_mutex_lock(&global_dvb_state_lock);
|
|
TA_FREEP(&global_dvb_state);
|
|
mp_mutex_unlock(&global_dvb_state_lock);
|
|
}
|
|
|
|
static int dvb_streaming_start(stream_t *stream, char *progname)
|
|
{
|
|
dvb_priv_t *priv = stream->priv;
|
|
dvb_state_t *state = priv->state;
|
|
|
|
if (!progname)
|
|
return 0;
|
|
|
|
dvb_channels_list_t *list = state->adapters[state->cur_adapter].list;
|
|
dvb_channel_t *channel = NULL;
|
|
int i;
|
|
for (i = 0; i < list->NUM_CHANNELS; i ++) {
|
|
if (!strcmp(list->channels[i].name, progname)) {
|
|
channel = &(list->channels[i]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!channel) {
|
|
MP_ERR(stream, "no such channel \"%s\"\n", progname);
|
|
return 0;
|
|
}
|
|
list->current = i;
|
|
|
|
// When switching channels, cfg_channel_switch_offset
|
|
// keeps the offset to the initially chosen channel.
|
|
list->current = (list->NUM_CHANNELS + list->current +
|
|
priv->opts->cfg_channel_switch_offset) % list->NUM_CHANNELS;
|
|
channel = &(list->channels[list->current]);
|
|
MP_INFO(stream, "Tuning to channel \"%s\"...\n", channel->name);
|
|
MP_VERBOSE(stream, "Program number %d: name=\"%s\", freq=%u\n", i,
|
|
channel->name, channel->freq);
|
|
|
|
if (!dvb_set_channel(stream, state->cur_adapter, list->current)) {
|
|
dvbin_close(stream);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void dvb_update_config(stream_t *stream)
|
|
{
|
|
dvb_priv_t *priv = stream->priv;
|
|
dvb_state_t *state = priv->state;
|
|
|
|
// Throttle the check to at maximum once every 0.1 s.
|
|
int now = (int)(mp_time_sec()*10);
|
|
if (now == priv->opts_check_time)
|
|
return;
|
|
priv->opts_check_time = now;
|
|
|
|
if (!m_config_cache_update(priv->opts_cache))
|
|
return;
|
|
|
|
// Re-parse stream path, if we have cfg parameters now,
|
|
// these should be preferred.
|
|
if (!dvb_parse_path(stream)) {
|
|
MP_ERR(stream, "error parsing DVB config, not tuning.");
|
|
return;
|
|
}
|
|
|
|
int r = dvb_streaming_start(stream, priv->prog);
|
|
if (r) {
|
|
// Stream will be pulled down after channel switch,
|
|
// persist state.
|
|
state->switching_channel = true;
|
|
}
|
|
}
|
|
|
|
static int dvb_open(stream_t *stream)
|
|
{
|
|
dvb_priv_t *priv = NULL;
|
|
|
|
mp_mutex_lock(&global_dvb_state_lock);
|
|
if (global_dvb_state && global_dvb_state->stream_used) {
|
|
MP_ERR(stream, "DVB stream already in use, only one DVB stream can exist at a time!\n");
|
|
mp_mutex_unlock(&global_dvb_state_lock);
|
|
goto err_out;
|
|
}
|
|
|
|
// Need to re-get config in any case, not part of global state.
|
|
stream->priv = talloc_zero(stream, dvb_priv_t);
|
|
priv = stream->priv;
|
|
priv->opts_cache = m_config_cache_alloc(stream, stream->global, &stream_dvb_conf);
|
|
priv->opts = priv->opts_cache->opts;
|
|
|
|
dvb_state_t *state = dvb_get_state(stream);
|
|
|
|
priv->state = state;
|
|
priv->log = stream->log;
|
|
if (!state) {
|
|
MP_ERR(stream, "DVB configuration is empty\n");
|
|
mp_mutex_unlock(&global_dvb_state_lock);
|
|
goto err_out;
|
|
}
|
|
|
|
if (!dvb_parse_path(stream)) {
|
|
mp_mutex_unlock(&global_dvb_state_lock);
|
|
goto err_out;
|
|
}
|
|
|
|
state->stream_used = true;
|
|
mp_mutex_unlock(&global_dvb_state_lock);
|
|
|
|
if (!state->is_on) {
|
|
// State could be already initialized, for example, we just did a channel switch.
|
|
// The following setup only has to be done once.
|
|
|
|
state->cur_frontend = -1;
|
|
|
|
if (!dvb_streaming_start(stream, priv->prog))
|
|
goto err_out;
|
|
}
|
|
|
|
stream->fill_buffer = dvb_streaming_read;
|
|
stream->close = dvbin_close;
|
|
stream->control = dvbin_stream_control;
|
|
stream->streaming = true;
|
|
stream->demuxer = "lavf";
|
|
stream->lavf_type = "mpegts";
|
|
|
|
return STREAM_OK;
|
|
|
|
err_out:
|
|
talloc_free(priv);
|
|
stream->priv = NULL;
|
|
return STREAM_ERROR;
|
|
}
|
|
|
|
int dvb_parse_path(stream_t *stream)
|
|
{
|
|
dvb_priv_t *priv = stream->priv;
|
|
dvb_state_t *state = priv->state;
|
|
|
|
// Parse stream path. Common rule: cfg wins over stream path,
|
|
// since cfg may be changed at runtime.
|
|
bstr prog, devno;
|
|
if (!bstr_split_tok(bstr0(stream->path), "@", &devno, &prog)) {
|
|
prog = devno;
|
|
devno.len = 0;
|
|
}
|
|
|
|
if (priv->opts->cfg_devno != 0) {
|
|
priv->devno = priv->opts->cfg_devno;
|
|
} else if (devno.len) {
|
|
bstr r;
|
|
priv->devno = bstrtoll(devno, &r, 0);
|
|
if (r.len || priv->devno < 0 || priv->devno >= MAX_ADAPTERS) {
|
|
MP_ERR(stream, "invalid devno: '%.*s'\n", BSTR_P(devno));
|
|
return 0;
|
|
}
|
|
} else {
|
|
// Default to the default of cfg_devno.
|
|
priv->devno = priv->opts->cfg_devno;
|
|
}
|
|
|
|
// Current adapter is derived from devno.
|
|
state->cur_adapter = -1;
|
|
for (int i = 0; i < state->adapters_count; i++) {
|
|
if (state->adapters[i].devno == priv->devno) {
|
|
state->cur_adapter = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (state->cur_adapter == -1) {
|
|
MP_ERR(stream, "No configuration found for adapter %d!\n",
|
|
priv->devno);
|
|
return 0;
|
|
}
|
|
|
|
char *new_prog = NULL;
|
|
if (priv->opts->cfg_prog != NULL && strlen(priv->opts->cfg_prog) > 0) {
|
|
new_prog = talloc_strdup(priv, priv->opts->cfg_prog);
|
|
} else if (prog.len) {
|
|
new_prog = bstrto0(priv, prog);
|
|
} else {
|
|
// We use the first program from the channel list.
|
|
dvb_channels_list_t *list = state->adapters[state->cur_adapter].list;
|
|
if (!list) {
|
|
MP_ERR(stream, "No channel list available for adapter %d!\n", priv->devno);
|
|
return 0;
|
|
}
|
|
new_prog = talloc_strdup(priv, list->channels[0].name);
|
|
}
|
|
talloc_free(priv->prog);
|
|
priv->prog = new_prog;
|
|
|
|
MP_VERBOSE(stream, "dvb_config: prog=\"%s\", devno=%d\n",
|
|
priv->prog, priv->devno);
|
|
return 1;
|
|
}
|
|
|
|
dvb_state_t *dvb_get_state(stream_t *stream)
|
|
{
|
|
dvb_priv_t *priv = stream->priv;
|
|
if (global_dvb_state)
|
|
return global_dvb_state;
|
|
|
|
struct mp_log *log = stream->log;
|
|
struct mpv_global *global = stream->global;
|
|
|
|
dvb_state_t *state = talloc_zero(NULL, dvb_state_t);
|
|
state->switching_channel = false;
|
|
state->is_on = false;
|
|
state->stream_used = true;
|
|
state->fe_fd = state->dvr_fd = -1;
|
|
|
|
for (unsigned int i = 0; i < MAX_ADAPTERS; i++) {
|
|
dvb_channels_list_t *list = NULL;
|
|
unsigned int delsys_mask[MAX_FRONTENDS];
|
|
for (unsigned int f = 0; f < MAX_FRONTENDS; f++) {
|
|
char filename[100];
|
|
snprintf(filename, sizeof(filename), "/dev/dvb/adapter%u/frontend%u", i, f);
|
|
int fd = open(filename, O_RDONLY | O_NONBLOCK | O_CLOEXEC);
|
|
if (fd < 0)
|
|
continue;
|
|
|
|
delsys_mask[f] = dvb_get_tuner_delsys_mask(fd, log);
|
|
delsys_mask[f] &= DELSYS_SUPP_MASK; /* Filter unsupported delivery systems. */
|
|
close(fd);
|
|
if (delsys_mask[f] == 0) {
|
|
mp_verbose(log, "Frontend device %s has no supported delivery systems.\n",
|
|
filename);
|
|
continue; /* Skip tuner. */
|
|
}
|
|
|
|
/* Create channel list for adapter. */
|
|
for (unsigned int delsys = 0; delsys < SYS_DVB__COUNT__; delsys++) {
|
|
if (!DELSYS_IS_SET(delsys_mask[f], delsys))
|
|
continue; /* Skip unsupported. */
|
|
|
|
mp_verbose(log, "Searching channel list for delivery system %s\n", get_dvb_delsys(delsys));
|
|
const char *conf_file_name;
|
|
switch (delsys) {
|
|
case SYS_DVBC_ANNEX_A:
|
|
case SYS_DVBC_ANNEX_C:
|
|
conf_file_name = "channels.conf.cbl";
|
|
break;
|
|
case SYS_ATSC:
|
|
conf_file_name = "channels.conf.atsc";
|
|
break;
|
|
case SYS_DVBT:
|
|
if (DELSYS_IS_SET(delsys_mask[f], SYS_DVBT2))
|
|
continue; /* Add all channels later with T2. */
|
|
conf_file_name = "channels.conf.ter";
|
|
break;
|
|
case SYS_DVBT2:
|
|
conf_file_name = "channels.conf.ter";
|
|
break;
|
|
case SYS_ISDBT:
|
|
conf_file_name = "channels.conf.isdbt";
|
|
break;
|
|
case SYS_DVBS:
|
|
if (DELSYS_IS_SET(delsys_mask[f], SYS_DVBS2))
|
|
continue; /* Add all channels later with S2. */
|
|
conf_file_name = "channels.conf.sat";
|
|
break;
|
|
case SYS_DVBS2:
|
|
conf_file_name = "channels.conf.sat";
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
void *talloc_ctx = NULL;
|
|
char *conf_file;
|
|
if (priv->opts->cfg_file && priv->opts->cfg_file[0]) {
|
|
conf_file = priv->opts->cfg_file;
|
|
} else {
|
|
talloc_ctx = talloc_new(NULL);
|
|
conf_file = mp_find_config_file(talloc_ctx, global, conf_file_name);
|
|
if (conf_file) {
|
|
mp_verbose(log, "Ignoring other channels.conf files.\n");
|
|
} else {
|
|
conf_file = mp_find_config_file(talloc_ctx, global,
|
|
"channels.conf");
|
|
}
|
|
}
|
|
|
|
list = dvb_get_channels(log, list, priv->opts->cfg_full_transponder,
|
|
conf_file, f, delsys, delsys_mask[f]);
|
|
talloc_free(talloc_ctx);
|
|
}
|
|
}
|
|
/* Add adapter with non zero channel list. */
|
|
if (!list)
|
|
continue;
|
|
|
|
dvb_adapter_config_t tmp = {
|
|
.devno = i,
|
|
.list = talloc_steal(state, list),
|
|
};
|
|
memcpy(&tmp.delsys_mask, delsys_mask, sizeof(delsys_mask));
|
|
|
|
MP_TARRAY_APPEND(state, state->adapters, state->adapters_count, tmp);
|
|
|
|
mp_verbose(log, "Added adapter with channels to state list, now %d.\n",
|
|
state->adapters_count);
|
|
}
|
|
|
|
if (state->adapters_count == 0)
|
|
TA_FREEP(&state);
|
|
|
|
global_dvb_state = state;
|
|
return state;
|
|
}
|
|
|
|
const stream_info_t stream_info_dvb = {
|
|
.name = "dvbin",
|
|
.open = dvb_open,
|
|
.protocols = (const char *const[]){ "dvb", NULL },
|
|
.stream_origin = STREAM_ORIGIN_UNSAFE,
|
|
};
|