Desktop
/* $Id: player.c,v 1.6 2007/11/29 15:15:02 khorben Exp $ */
/* Copyright (c) 2007 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Player */
/* Player is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* Player 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
* Player; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA */
#include <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "callbacks.h"
#include "player.h"
/* types */
struct _menu
{
char * name;
GtkSignalFunc callback;
char * stock;
};
struct _menubar
{
char * name;
struct _menu * menu;
};
/* constants */
struct _menu _menu_file[] =
{
{ "_Open", G_CALLBACK(on_file_open), GTK_STOCK_OPEN },
{ "", NULL, NULL },
{ "_Properties", G_CALLBACK(on_file_properties), GTK_STOCK_PROPERTIES },
{ "", NULL, NULL },
{ "_Close", G_CALLBACK(on_file_close), GTK_STOCK_CLOSE },
{ NULL, NULL, NULL }
};
struct _menu _menu_edit[] =
{
{ "_Preferences", G_CALLBACK(on_edit_preferences),
GTK_STOCK_PREFERENCES },
{ NULL, NULL, NULL }
};
struct _menu _menu_view[] =
{
#if GTK_CHECK_VERSION(2, 8, 0)
{ "_Fullscreen", G_CALLBACK(on_view_fullscreen), GTK_STOCK_FULLSCREEN },
#else
{ "_Fullscreen", G_CALLBACK(on_view_fullscreen), NULL },
#endif
{ NULL, NULL, NULL }
};
static struct _menu _menu_help[] =
{
#if GTK_CHECK_VERSION(2, 6, 0)
{ "_About", G_CALLBACK(on_help_about), GTK_STOCK_ABOUT },
#else
{ "_About", G_CALLBACK(on_help_about), NULL },
#endif
{ NULL, NULL, NULL }
};
static struct _menubar _menubar[] =
{
{ "_File", _menu_file },
{ "_Edit", _menu_edit },
{ "_View", _menu_view },
{ "_Help", _menu_help },
{ NULL, NULL }
};
/* Player */
/* private */
/* prototypes */
/* useful */
static int _player_error(char const * message, int ret);
/* callbacks */
static gboolean _command_read(GIOChannel * source, GIOCondition condition,
gpointer data);
static gboolean _command_timeout(gpointer data);
static gboolean _command_write(GIOChannel * source, GIOCondition condition,
gpointer data);
/* functions */
/* accessors */
static void _player_set_progress(Player * player, unsigned int progress)
{
gdouble fraction;
static char buf[16];
fraction = progress <= 100 ? progress : 100;
fraction /= 100;
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(player->progress),
fraction);
snprintf(buf, sizeof(buf), "%d%%", progress);
gtk_progress_bar_set_text(GTK_PROGRESS_BAR(player->progress), buf);
}
/* useful */
/* player_error */
static int _player_error(char const * message, int ret)
{
fputs("Player: ", stderr);
perror(message);
return ret;
}
/* player_command */
static int _player_command(Player * player, char const * cmd, size_t cmd_len)
{
char * p;
if(player->pid == -1)
{
fputs("Player: mplayer not running\n", stderr);
return 1;
}
#ifdef DEBUG
fprintf(stderr, "%s%d%s\"%s\"\n", "DEBUG: pid ", player->pid,
": write ", cmd);
#endif
if((p = realloc(player->buf, player->buf_len + cmd_len)) == NULL)
return _player_error("malloc", 1);
player->buf = p;
memcpy(&p[player->buf_len], cmd, cmd_len);
player->buf_len += cmd_len;
g_io_add_watch(player->channel[1], G_IO_OUT, _command_write, player);
return 0;
}
/* callbacks */
/* command_read */
static gboolean _command_read(GIOChannel * source, GIOCondition condition,
gpointer data)
{
Player * player = data;
static char buf[512];
static size_t buf_len = 0;
gsize read;
size_t i;
size_t j;
unsigned int u32;
if(condition != G_IO_IN)
{
player_error(player, "", 0); /* FIXME */
gtk_main_quit();
return FALSE; /* FIXME report error */
}
#ifdef DEBUG
fprintf(stderr, "DEBUG: buf_len=%zu\n", buf_len);
#endif
if(g_io_channel_read(source, &buf[buf_len], sizeof(buf) - buf_len,
&read) != G_IO_ERROR_NONE)
{
player_error(player, "", 0); /* FIXME */
gtk_main_quit();
return FALSE; /* FIXME report error */
}
if(read == 0)
{
player->read_id = 0;
return FALSE; /* FIXME end of file? */
}
buf_len += read;
j = 0;
for(i = 0; i < buf_len; i++)
{
if(buf[i] != '\n')
continue;
buf[i] = '\0';
#ifdef DEBUG
fprintf(stderr, "DEBUG: read: \"%s\"\n", &buf[j]);
#endif
if(sscanf(&buf[j], "ANS_PERCENT_POSITION=%u\n", &u32) == 1)
_player_set_progress(player, u32);
else if(sscanf(&buf[j], "ID_VIDEO_WIDTH=%u\n", &u32) == 1)
player_set_size(player, u32, -1);
else if(sscanf(&buf[j], "ID_VIDEO_HEIGHT=%u\n", &u32) == 1)
player_set_size(player, -1, u32);
#ifdef DEBUG
else
fprintf(stderr, "DEBUG: NOT parsed\n");
#endif
j = i + 1;
}
buf_len -= j;
memmove(buf, &buf[j], buf_len);
return TRUE;
}
/* command_timeout */
static gboolean _command_timeout(gpointer data)
{
Player * player = data;
static const char cmd[] = "pausing_keep get_percent_pos\n";
_player_command(player, cmd, sizeof(cmd) - 1);
return TRUE;
}
/* command_write */
static gboolean _command_write(GIOChannel * source, GIOCondition condition,
gpointer data)
{
Player * player = data;
gsize written;
char * p;
if(condition != G_IO_OUT)
{
player_error(player, "", 0); /* FIXME */
gtk_main_quit();
return FALSE; /* FIXME report error */
}
if(g_io_channel_write(source, player->buf, player->buf_len, &written)
!= G_IO_ERROR_NONE)
{
player_error(player, "", 0); /* FIXME */
gtk_main_quit();
return FALSE; /* FIXME report error */
}
#ifdef DEBUG
fprintf(stderr, "DEBUG: wrote %zu bytes\n", written);
#endif
player->buf_len -= written;
memmove(player->buf, &player->buf[written], player->buf_len);
if(player->buf_len == 0)
return FALSE;
if((p = realloc(player->buf, player->buf_len)) != NULL)
player->buf = p;
return TRUE;
}
/* public */
/* player_new */
static int _player_error(char const * message, int ret);
static GtkWidget * _new_menubar(Player * player);
static void _new_mplayer(Player * player);
#if !GTK_CHECK_VERSION(2, 12, 0)
static void gtk_widget_set_tooltip_text(GtkWidget * widget, const char * text);
#endif
Player * player_new(void)
{
Player * player;
GtkWidget * vbox;
GtkWidget * toolbar;
GtkToolItem * toolitem;
if((player = malloc(sizeof(*player))) == NULL)
return NULL;
player->filename = NULL;
player->paused = 0;
player->width = 400;
player->height = 300;
player->pid = -1;
player->window = NULL;
if(pipe(player->fd[0]) != 0
|| pipe(player->fd[1]) != 0)
{
player_error(player, strerror(errno), 0);
free(player);
return NULL;
}
player->buf = NULL;
player->buf_len = 0;
/* callbacks */
player->read_id = 0;
player->timeout_id = 0;
/* widgets */
player->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(player->window), player->width,
player->height);
gtk_window_set_title(GTK_WINDOW(player->window), "Player");
gtk_widget_realize(player->window);
g_signal_connect(G_OBJECT(player->window), "delete-event", G_CALLBACK(
on_player_closex), player);
vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(player->window), vbox);
player->menubar = _new_menubar(player);
gtk_box_pack_start(GTK_BOX(vbox), player->menubar, FALSE, FALSE, 0);
/* view */
player->view_window = gtk_socket_new();
gtk_box_pack_start(GTK_BOX(vbox), player->view_window, TRUE, TRUE, 0);
/* statusbar */
player->statusbar = gtk_statusbar_new();
player->statusbar_id = 0;
gtk_box_pack_end(GTK_BOX(vbox), player->statusbar, FALSE, FALSE, 0);
/* toolbar */
toolbar = gtk_toolbar_new();
gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS);
player->tb_previous = gtk_tool_button_new_from_stock(
GTK_STOCK_MEDIA_PREVIOUS);
g_signal_connect(player->tb_previous, "clicked", G_CALLBACK(
on_previous), player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_previous),
"Previous");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_previous, -1);
player->tb_rewind = gtk_tool_button_new_from_stock(
GTK_STOCK_MEDIA_REWIND);
g_signal_connect(player->tb_rewind, "clicked", G_CALLBACK(
on_rewind), player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_rewind),
"Rewind");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_rewind, -1);
player->tb_play = gtk_tool_button_new_from_stock(GTK_STOCK_MEDIA_PLAY);
g_signal_connect(player->tb_play, "clicked", G_CALLBACK(on_play),
player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_play), "Play");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_play, -1);
player->tb_pause = gtk_tool_button_new_from_stock(
GTK_STOCK_MEDIA_PAUSE);
g_signal_connect(player->tb_pause, "clicked", G_CALLBACK(on_pause),
player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_pause), "Pause");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_pause, -1);
player->tb_stop = gtk_tool_button_new_from_stock(GTK_STOCK_MEDIA_STOP);
g_signal_connect(player->tb_stop, "clicked", G_CALLBACK(on_stop),
player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_stop), "Stop");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_stop, -1);
player->tb_forward = gtk_tool_button_new_from_stock(
GTK_STOCK_MEDIA_FORWARD);
g_signal_connect(player->tb_forward, "clicked", G_CALLBACK(
on_forward), player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_forward), "Forward");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_forward, -1);
player->tb_next = gtk_tool_button_new_from_stock(GTK_STOCK_MEDIA_NEXT);
g_signal_connect(player->tb_next, "clicked", G_CALLBACK(
on_next), player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_next), "Next");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_next, -1);
toolitem = gtk_tool_item_new();
gtk_tool_item_set_expand(toolitem, TRUE);
player->progress = gtk_progress_bar_new();
gtk_progress_bar_set_text(GTK_PROGRESS_BAR(player->progress), "0%");
gtk_container_add(GTK_CONTAINER(toolitem), player->progress);
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), toolitem, -1);
player->tb_fullscreen = gtk_tool_button_new_from_stock(
GTK_STOCK_FULLSCREEN);
g_signal_connect(player->tb_fullscreen, "clicked", G_CALLBACK(
on_fullscreen), player);
gtk_widget_set_tooltip_text(GTK_WIDGET(player->tb_fullscreen),
"Fullscreen");
gtk_toolbar_insert(GTK_TOOLBAR(toolbar), player->tb_fullscreen, -1);
gtk_box_pack_end(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
gtk_widget_show_all(player->window);
/* mplayer */
_new_mplayer(player);
return player;
}
static GtkWidget * _new_menubar(Player * player)
{
GtkWidget * tb_menubar;
GtkWidget * menu;
GtkWidget * menubar;
GtkWidget * menuitem;
unsigned int i;
unsigned int j;
struct _menu * p;
tb_menubar = gtk_menu_bar_new();
for(i = 0; _menubar[i].name != NULL; i++)
{
menubar = gtk_menu_item_new_with_mnemonic(_menubar[i].name);
menu = gtk_menu_new();
for(j = 0; _menubar[i].menu[j].name != NULL; j++)
{
p = &_menubar[i].menu[j];
if(p->name[0] == '\0')
menuitem = gtk_separator_menu_item_new();
else if(p->stock == NULL)
menuitem = gtk_menu_item_new_with_mnemonic(
p->name);
else
menuitem = gtk_image_menu_item_new_from_stock(
p->stock, NULL);
if(p->callback != NULL)
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(p->callback),
player);
else
gtk_widget_set_sensitive(menuitem, FALSE);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem);
}
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menubar), menu);
gtk_menu_bar_append(GTK_MENU_BAR(tb_menubar), menubar);
}
return tb_menubar;
}
static void _new_mplayer(Player * player)
{
char buf[] = "pausing loadfile splash.png 0\nframe_step\n";
char wid[16];
snprintf(wid, sizeof(wid), "%u", gtk_socket_get_id(GTK_SOCKET(
player->view_window)));
if((player->pid = fork()) == -1)
{
player_error(player, strerror(errno), 0);
return;
}
if(player->pid == 0) /* child */
{
close(player->fd[0][0]);
close(player->fd[1][1]);
if(dup2(player->fd[1][0], 0) == -1)
exit(_player_error("dup2", 2));
if(dup2(player->fd[0][1], 1) == -1)
exit(_player_error("dup2", 2));
execlp("mplayer", "mplayer", "-slave", "-wid", wid, "-quiet",
"-idle", "-softvol", "-identify",
"-noconsolecontrols", NULL);
exit(_player_error("mplayer", 2));
}
close(player->fd[0][1]);
close(player->fd[1][0]);
player->channel[0] = g_io_channel_unix_new(player->fd[0][0]);
player->read_id = g_io_add_watch(player->channel[0], G_IO_IN,
_command_read, player);
player->channel[1] = g_io_channel_unix_new(player->fd[1][1]);
_player_command(player, buf, strlen(buf));
player->paused = 1;
}
#if !GTK_CHECK_VERSION(2, 12, 0)
static void gtk_widget_set_tooltip_text(GtkWidget * widget, const char * text)
{
static GtkTooltips * tooltips = NULL;
if(tooltips == NULL)
{
tooltips = gtk_tooltips_new();
gtk_tooltips_enable(tooltips);
}
gtk_tooltips_set_tip(tooltips, widget, text, NULL);
}
#endif
/* player_delete */
void player_delete(Player * player)
{
char cmd[] = "quit\n";
if(player->read_id != 0)
g_source_remove(player->read_id);
if(player->timeout_id != 0)
g_source_remove(player->timeout_id);
_player_command(player, cmd, sizeof(cmd) - 1);
free(player);
}
/* accessors */
int player_get_fullscreen(Player * player)
{
return player->fullscreen ? 1 : 0;
}
void player_set_fullscreen(Player * player, int fullscreen)
{
if(fullscreen)
{
if(player->fullscreen)
return;
gtk_widget_hide(player->menubar);
gtk_widget_hide(player->statusbar);
gtk_window_fullscreen(GTK_WINDOW(player->window));
player->fullscreen = !player->fullscreen;
return;
}
if(!player->fullscreen)
return;
gtk_window_unfullscreen(GTK_WINDOW(player->window));
gtk_widget_show(player->menubar);
gtk_widget_show(player->statusbar);
player->fullscreen = !player->fullscreen;
}
void player_set_size(Player * player, int width, int height)
{
if(width < 0)
width = player->width;
if(height < 0)
height = player->height;
gtk_widget_set_size_request(player->view_window, width, height);
player->width = width;
player->height = height;
}
/* useful */
int player_error(Player * player, char const * message, int ret)
{
GtkWidget * dialog;
dialog = gtk_message_dialog_new(GTK_WINDOW(player->window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", message);
gtk_window_set_title(GTK_WINDOW(dialog), "Error");
g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK(
gtk_widget_destroy), NULL);
gtk_dialog_run(GTK_DIALOG(dialog));
return ret;
}
int player_sigchld(Player * player)
{
pid_t pid;
int status;
if(player->pid == -1)
return 1;
if((pid = waitpid(player->pid, &status, WNOHANG)) == -1)
return player_error(player, "waitpid", 1);
if(pid == 0)
return 1;
fputs("Player: mplayer ", stderr);
if(WIFEXITED(status))
fprintf(stderr, "%d%s%u\n", pid, ": exited with code ",
WEXITSTATUS(status));
else
fprintf(stderr, "%d%s", pid, ": Unknown state\n");
player->pid = -1;
return 0;
}
/* playlist management */
void player_next(Player * player)
{
char cmd[] = "pt_step 1\n";
_player_command(player, cmd, sizeof(cmd)-1);
}
void player_previous(Player * player)
{
char cmd[] = "pt_step -1\n";
_player_command(player, cmd, sizeof(cmd)-1);
}
int player_open(Player * player, char const * filename)
{
char cmd[512];
size_t len;
if(player->filename != NULL)
free(player->filename);
if((player->filename = strdup(filename)) == NULL)
return player_error(player, strerror(errno), 1);
len = snprintf(cmd, sizeof(cmd), "%s%s%s", "pausing loadfile \"",
player->filename, "\" 0\nframe_step\n");
if(len >= sizeof(cmd))
{
fputs("Player: String too long\n", stderr);
return 1;
}
if(_player_command(player, cmd, len) != 0)
return 1;
player->paused = 1;
snprintf(cmd, sizeof(cmd), "%s%s", "Player - ", filename);
gtk_window_set_title(GTK_WINDOW(player->window), cmd);
return 0;
}
int player_open_dialog(Player * player)
{
int ret;
GtkWidget * dialog;
char * filename = NULL;
dialog = gtk_file_chooser_dialog_new("Open file...",
GTK_WINDOW(player->window),
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL);
if(gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT)
filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(
dialog));
gtk_widget_destroy(dialog);
if(filename == NULL)
return 1;
ret = player_open(player, filename);
g_free(filename);
return ret;
}
void player_queue_add(Player * player, char const * filename)
{
char cmd[512];
size_t len;
len = snprintf(cmd, sizeof(cmd), "%s%s%s", "loadfile \"", filename,
"\" 1\n");
if(len >= sizeof(cmd))
fputs("Player: String too long\n", stderr);
else
_player_command(player, cmd, len);
}
/* player_play */
int player_play(Player * player)
{
char cmd[512];
size_t len;
if(player->filename == NULL)
return 0;
/* FIXME escape double quotes in filename? */
if(player->paused == 1)
{
strcpy(cmd, "pause\n");
len = 6;
}
else if((len = snprintf(cmd, sizeof(cmd), "%s%s%s", "loadfile \"",
player->filename, "\" 0\n"))
>= sizeof(cmd))
{
fputs("Player: String too long\n", stderr);
return 1;
}
if(_player_command(player, cmd, len) != 0)
return 1;
player->paused = 0;
if(player->read_id == 0)
player->read_id = g_io_add_watch(player->channel[0], G_IO_IN,
_command_read, player);
if(player->timeout_id == 0)
player->timeout_id = g_timeout_add(500, _command_timeout,
player);
return 0;
}
void player_pause(Player * player)
{
char cmd[] = "pause\n";
if(player->filename == NULL)
return;
if(player->paused != 0)
{
if(player->timeout_id == 0)
player->timeout_id = g_timeout_add(500,
_command_timeout, player);
}
else if(player->timeout_id != 0)
{
g_source_remove(player->timeout_id);
player->timeout_id = 0;
}
_player_command(player, cmd, sizeof(cmd) - 1);
player->paused = player->paused == 1 ? 0 : 1;
}
void player_stop(Player * player)
{
char cmd[] = "pausing loadfile splash.png 0\nframe_step\n";
_player_command(player, cmd, sizeof(cmd)-1);
gtk_progress_bar_set_text(GTK_PROGRESS_BAR(player->progress), "0%");
player->paused = 0; /* FIXME also needs a stopped state */
if(player->read_id != 0)
{
g_source_remove(player->read_id);
player->read_id = 0;
}
if(player->timeout_id != 0)
{
g_source_remove(player->timeout_id);
player->timeout_id = 0;
}
}
void player_rewind(Player * player)
{
char cmd[] = "speed_incr -0.5\n";
if(player->filename == NULL)
return;
_player_command(player, cmd, sizeof(cmd)-1);
}
void player_forward(Player * player)
{
char cmd[] = "speed_incr 0.5\n";
if(player->filename == NULL)
return;
_player_command(player, cmd, sizeof(cmd)-1);
}