mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 06:42:03 +00:00
3b22404e07
Now, when backgrounded, mpv plays and outputs messages to stdout, but statusline is not output. Background<->foreground transitions are detected by signals and polling the process groups.
328 lines
9.6 KiB
C
328 lines
9.6 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer 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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*
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* MPlayer 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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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <unistd.h>
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#include "config.h"
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#include "osdep/getch2.h"
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#include "osdep/io.h"
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#ifdef CONFIG_GETTEXT
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#include <locale.h>
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#include <libintl.h>
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#endif
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#ifndef __MINGW32__
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#include <signal.h>
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#endif
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#include "core/mp_msg.h"
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/* maximum message length of mp_msg */
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#define MSGSIZE_MAX 6144
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <io.h>
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#define hSTDOUT GetStdHandle(STD_OUTPUT_HANDLE)
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#define hSTDERR GetStdHandle(STD_ERROR_HANDLE)
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static short stdoutAttrs = 0;
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static const unsigned char ansi2win32[10] = {
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0,
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FOREGROUND_RED,
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FOREGROUND_GREEN,
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FOREGROUND_GREEN | FOREGROUND_RED,
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FOREGROUND_BLUE,
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FOREGROUND_BLUE | FOREGROUND_RED,
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FOREGROUND_BLUE | FOREGROUND_GREEN,
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FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED,
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FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED,
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FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED
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};
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#endif
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int mp_msg_levels[MSGT_MAX]; // verbose level of this module. initialized to -2
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int mp_msg_level_all = MSGL_STATUS;
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int verbose = 0;
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int mp_msg_color = 1;
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int mp_msg_module = 0;
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int mp_msg_cancolor = 0;
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static int mp_msg_docolor(void) {
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return mp_msg_cancolor && mp_msg_color;
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}
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void mp_msg_init(void){
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#ifdef _WIN32
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CONSOLE_SCREEN_BUFFER_INFO cinfo;
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long cmode = 0;
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GetConsoleMode(hSTDOUT, &cmode);
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cmode |= (ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
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SetConsoleMode(hSTDOUT, cmode);
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SetConsoleMode(hSTDERR, cmode);
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GetConsoleScreenBufferInfo(hSTDOUT, &cinfo);
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stdoutAttrs = cinfo.wAttributes;
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#endif
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#ifndef __MINGW32__
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struct sigaction sa;
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sa.sa_handler = SIG_IGN;
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sa.sa_flags = 0;
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sigemptyset(&sa.sa_mask);
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sigaction(SIGTTOU, &sa, NULL); // just write to stdout if you have to
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#endif
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int i;
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char *env = getenv("MPV_VERBOSE");
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if (env)
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verbose = atoi(env);
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for(i=0;i<MSGT_MAX;i++) mp_msg_levels[i] = -2;
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mp_msg_cancolor = isatty(fileno(stdout));
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mp_msg_levels[MSGT_IDENTIFY] = -1; // no -identify output by default
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#ifdef CONFIG_GETTEXT
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textdomain("mpv");
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char *localedir = getenv("MPV_LOCALEDIR");
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if (localedir == NULL && strlen(MPLAYER_LOCALEDIR))
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localedir = MPLAYER_LOCALEDIR;
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bindtextdomain("mpv", localedir);
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bind_textdomain_codeset("mpv", "UTF-8");
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#endif
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}
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int mp_msg_test(int mod, int lev)
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{
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#ifndef __MINGW32__
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if (lev == MSGL_STATUS) {
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// skip status line output if we are not in the foreground process group
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if (tcgetpgrp(0) != getpgrp())
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return false;
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}
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#endif
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return lev <= (mp_msg_levels[mod] == -2 ? mp_msg_level_all + verbose : mp_msg_levels[mod]);
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}
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static void set_msg_color(FILE* stream, int lev)
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{
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static const unsigned char v_colors[10] = {9, 1, 3, 15, 7, 7, 2, 8, 8, 8};
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int c = v_colors[lev];
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#ifdef MP_ANNOY_ME
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/* that's only a silly color test */
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{
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int c;
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static int flag = 1;
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if (flag)
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for(c = 0; c < 24; c++)
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printf("\033[%d;3%dm*** COLOR TEST %d ***\n", c>7, c&7, c);
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flag = 0;
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}
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#endif
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if (mp_msg_docolor())
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{
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#ifdef _WIN32
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HANDLE *wstream = stream == stderr ? hSTDERR : hSTDOUT;
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SetConsoleTextAttribute(wstream, ansi2win32[c] | FOREGROUND_INTENSITY);
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#else
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fprintf(stream, "\033[%d;3%dm", c >> 3, c & 7);
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#endif
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}
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}
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static void print_msg_module(FILE* stream, int mod)
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{
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static const char *module_text[MSGT_MAX] = {
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"GLOBAL",
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"CPLAYER",
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"GPLAYER",
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"VIDEOOUT",
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"AUDIOOUT",
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"DEMUXER",
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"DS",
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"DEMUX",
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"HEADER",
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"AVSYNC",
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"AUTOQ",
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"CFGPARSER",
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"DECAUDIO",
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"DECVIDEO",
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"SEEK",
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"WIN32",
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"OPEN",
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"DVD",
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"PARSEES",
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"LIRC",
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"STREAM",
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"CACHE",
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"MENCODER",
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"XACODEC",
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"TV",
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"OSDEP",
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"SPUDEC",
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"PLAYTREE",
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"INPUT",
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"VFILTER",
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"OSD",
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"NETWORK",
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"CPUDETECT",
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"CODECCFG",
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"SWS",
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"VOBSUB",
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"SUBREADER",
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"AFILTER",
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"NETST",
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"MUXER",
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"OSDMENU",
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"IDENTIFY",
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"RADIO",
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"ASS",
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"LOADER",
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"STATUSLINE",
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};
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int c2 = (mod + 1) % 15 + 1;
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if (!mp_msg_module)
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return;
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#ifdef _WIN32
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HANDLE *wstream = stream == stderr ? hSTDERR : hSTDOUT;
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if (mp_msg_docolor())
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SetConsoleTextAttribute(wstream, ansi2win32[c2&7] | FOREGROUND_INTENSITY);
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fprintf(stream, "%9s", module_text[mod]);
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if (mp_msg_docolor())
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SetConsoleTextAttribute(wstream, stdoutAttrs);
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#else
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if (mp_msg_docolor())
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fprintf(stream, "\033[%d;3%dm", c2 >> 3, c2 & 7);
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fprintf(stream, "%9s", module_text[mod]);
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if (mp_msg_docolor())
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fprintf(stream, "\033[0;37m");
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#endif
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fprintf(stream, ": ");
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}
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void mp_msg_va(int mod, int lev, const char *format, va_list va)
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{
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char tmp[MSGSIZE_MAX];
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FILE *stream = lev == MSGL_STATUS ? stderr : stdout;
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static int header = 1;
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// indicates if last line printed was a status line
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static int statusline;
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if (!mp_msg_test(mod, lev)) return; // do not display
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vsnprintf(tmp, MSGSIZE_MAX, format, va);
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tmp[MSGSIZE_MAX-2] = '\n';
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tmp[MSGSIZE_MAX-1] = 0;
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/* A status line is normally intended to be overwritten by the next
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* status line, and does not end with a '\n'. If we're printing a normal
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* line instead after the status one print '\n' to change line. */
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if (statusline && lev != MSGL_STATUS)
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fprintf(stderr, "\n");
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statusline = lev == MSGL_STATUS;
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if (header)
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print_msg_module(stream, mod);
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set_msg_color(stream, lev);
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size_t len = strlen(tmp);
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header = len && (tmp[len-1] == '\n' || tmp[len-1] == '\r');
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fprintf(stream, "%s", tmp);
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if (mp_msg_docolor())
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{
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#ifdef _WIN32
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HANDLE *wstream = lev <= MSGL_WARN ? hSTDERR : hSTDOUT;
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SetConsoleTextAttribute(wstream, stdoutAttrs);
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#else
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fprintf(stream, "\033[0m");
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#endif
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}
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fflush(stream);
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}
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void mp_msg(int mod, int lev, const char *format, ...)
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{
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va_list va;
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va_start(va, format);
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mp_msg_va(mod, lev, format, va);
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va_end(va);
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}
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char *mp_gtext(const char *string)
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{
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#ifdef CONFIG_GETTEXT
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/* gettext expects the global locale to be set with
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* setlocale(LC_ALL, ""). However doing that would suck for a
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* couple of reasons (locale stuff is badly designed and sucks in
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* general).
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*
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* First, setting the locale, especially LC_CTYPE, changes the
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* behavior of various C functions and we don't want that - we
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* want isalpha() for example to always behave like in the C
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* locale.
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* Second, there is no way to enforce a sane character set. All
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* strings inside MPlayer must always be in utf-8, not in the
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* character set specified by the system locale which could be
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* something different and completely insane. The locale system
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* lacks any way to say "set LC_CTYPE to utf-8, ignoring the
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* default system locale if it specifies something different". We
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* could try to work around that flaw by leaving LC_CTYPE to the C
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* locale and only setting LC_MESSAGES (which is the variable that
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* must be set to tell gettext which language to translate
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* to). However if we leave LC_MESSAGES set then things like
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* strerror() may produce completely garbled output when they try
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* to translate their results but then try to convert some
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* translated non-ASCII text to the character set specified by
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* LC_CTYPE which would still be in the C locale (this doesn't
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* affect gettext itself because it supports specifying the
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* character set directly with bind_textdomain_codeset()).
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*
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* So the only solution (at least short of trying to work around
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* things possibly producing non-utf-8 output) is to leave all the
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* locale variables unset. Note that this means it's not possible
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* to get translated output from any libraries we call if they
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* only rely on the broken locale system to specify the language
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* to use; this is the case with libc for example.
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*
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* The locale changing below is rather ugly, but hard to avoid.
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* gettext doesn't support specifying the translation target
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* directly, only through locale.
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* The main actual problem this could cause is interference with
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* other threads; that could be avoided with thread-specific
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* locale changes, but such functionality is less standard and I
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* think it's not worth adding pre-emptively unless someone sees
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* an actual problem case.
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*/
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setlocale(LC_MESSAGES, "");
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string = gettext(string);
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setlocale(LC_MESSAGES, "C");
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#endif
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return (char *)string;
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}
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void mp_tmsg(int mod, int lev, const char *format, ...)
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{
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va_list va;
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va_start(va, format);
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mp_msg_va(mod, lev, mp_gtext(format), va);
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va_end(va);
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}
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