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Add support for media time seek

This commit is contained in:
daleclack 2023-09-26 16:28:49 +08:00
parent 88f9b494cd
commit 43b1729d05
2 changed files with 147 additions and 64 deletions
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201
Gtk4/gtk154_mediaplayer3/src/LyricsParser.cpp
View File

@ -8,6 +8,7 @@ static char *lyrics_content = NULL;
static gboolean lyrics_loaded = FALSE;
static gboolean line_read = FALSE, lyrics_updated = FALSE;
static char current_lyrics[lyrics_max_length];
static gint64 lyric_time;
// Replace the symbol
static void UTF8_Replace_and_Symbol(gint64 pos_and_char, char *utf8_string)
@ -25,7 +26,7 @@ static void UTF8_Replace_and_Symbol(gint64 pos_and_char, char *utf8_string)
utf8_string[pos_and_char + 2] = 'm';
utf8_string[pos_and_char + 3] = 'p';
utf8_string[pos_and_char + 4] = ';';
// Fix end symbol
utf8_string[string_length + 3] = '\0';
}
@ -46,8 +47,8 @@ static void UTF8_String_Fix(char *utf8_string)
}
// Get lyrics string
static void get_substr(char *src, char *dest, size_t start,
size_t end)
static void get_lrc_substr(char *src, char *dest,
size_t start, size_t end)
{
// Copy string to the end
if (strlen(src) == 0 || strlen(src) == start + 1)
@ -79,7 +80,7 @@ static size_t get_lrc_timestamp_end_pos(const char *lrc_line)
// Get timestamp of a lyrics line
static gint64 get_lrc_line_timestamp(const char *lyrics_line, size_t timestamp_length)
{
static gint64 lyric_time = -1;
static gint64 lyric_time_tmp = 0;
// Minutes
gint64 lyric_min = (lyrics_line[1] - '0') * 10 +
(lyrics_line[2] - '0');
@ -103,10 +104,10 @@ static gint64 get_lrc_line_timestamp(const char *lyrics_line, size_t timestamp_l
break;
}
lyric_time = lyric_micro + lyric_sec * 1000 +
lyric_min * 60 * 1000;
lyric_time_tmp = lyric_micro + lyric_sec * 1000 +
lyric_min * 60 * 1000;
return lyric_time;
return lyric_time_tmp;
}
// Get a line of lyrics
@ -202,13 +203,65 @@ void update_lyrics(MyMediaPlayer *player)
get_lyrics_line(NULL, NULL, TRUE);
}
// Lyrics Line process
static void lyric_line_process(char *lyrics_line,
size_t &timestamp_length)
{
// Some lrc files has empty lines
if (strlen(lyrics_line) == 0)
{
line_read = TRUE;
return;
}
// Not a number
while (lyrics_line[1] < '0' || lyrics_line[1] > '9')
{
line_read = FALSE;
return;
}
// Get timestamp length
timestamp_length = get_lrc_timestamp_end_pos(lyrics_line);
g_print("%s\n", lyrics_line);
lyric_time = get_lrc_line_timestamp(lyrics_line, timestamp_length);
// Remove time stamp
get_lrc_substr(lyrics_line, current_lyrics, timestamp_length,
strlen(lyrics_line) - timestamp_length);
// Fix some symbols
UTF8_String_Fix(current_lyrics);
// A lyric line is read
line_read = TRUE;
}
// Update label that show lyrics
static void lyrics_label_update(gint64 &curr_time, MyMediaPlayer *player)
{
char label_string[lyrics_max_length];
// if time is on a lyrics, update the label
if (curr_time >= lyric_time - 100 && curr_time <= lyric_time + 100 &&
line_read ||
lyric_time == 0)
{
// Since a new line is read and time match, load lyrics
snprintf(label_string, lyrics_max_length,
"<span color=\"green\" size='12pt'>%s</span>", current_lyrics);
gtk_label_set_markup(my_media_player_get_lyrics_widget(player),
label_string);
line_read = FALSE;
}
}
// Get lyrics for a specfied time
static void get_lyrics(gint64 curr_time, gboolean playing, MyMediaPlayer *player)
{
char lyrics_line[lyrics_max_length];
char label_string[lyrics_max_length];
static size_t timestamp_length;
static gint64 lyric_time;
// Get lyrics data
if (lyrics_loaded)
@ -219,56 +272,65 @@ static void get_lyrics(gint64 curr_time, gboolean playing, MyMediaPlayer *player
// Get lyrics line
get_lyrics_line(lyrics_content, lyrics_line, FALSE);
// Some lrc files has empty lines
if (strlen(lyrics_line) == 0)
{
line_read = TRUE;
return;
}
// Not a number
while (lyrics_line[1] < '0' || lyrics_line[1] > '9')
{
line_read = FALSE;
return;
}
// Get timestamp length
timestamp_length = get_lrc_timestamp_end_pos(lyrics_line);
g_print("%s\n", lyrics_line);
lyric_time = get_lrc_line_timestamp(lyrics_line, timestamp_length);
// Remove time stamp
get_substr(lyrics_line, current_lyrics, timestamp_length,
strlen(lyrics_line) - timestamp_length);
// Fix some symbols
UTF8_String_Fix(current_lyrics);
line_read = TRUE;
}
if (curr_time >= lyric_time - 100 && curr_time <= lyric_time + 100 &&
line_read ||
lyric_time == 0)
{
// Since a new line is read and time match, load lyrics
snprintf(label_string, lyrics_max_length,
"<span color=\"green\" size='12pt'>%s</span>", current_lyrics);
gtk_label_set_markup(my_media_player_get_lyrics_widget(player),
label_string);
line_read = FALSE;
// Process lyrics line
lyric_line_process(lyrics_line, timestamp_length);
}
// Try to update label
lyrics_label_update(curr_time, player);
}
else
// else
// {
// // g_print("Lyric file open failed!\n");
// gtk_label_set_markup(my_media_player_get_lyrics_widget(player),
// "<span color=\"green\" size='12pt'>No Lyric File Found!</span>");
// }
}
// Reset lyrics for drag of timeline
static void reset_lyrics(gint64 timestamp, GtkMediaStream *stream,
MyMediaPlayer *player)
{
static size_t timestamp_length;
lyric_time = -1;
char lyrics_line[lyrics_max_length];
char priv_lyrics_line[lyrics_max_length];
// Reset loading status
get_lyrics_line(NULL, NULL, TRUE);
// Fine match lyrics line
do
{
// g_print("Lyric file open failed!\n");
gtk_label_set_markup(my_media_player_get_lyrics_widget(player),
"<span color=\"red\" size='12pt'>No Lyric File Found!</span>");
}
// Get Privous lyrics line
strncpy(priv_lyrics_line, current_lyrics, lyrics_max_length);
// Get lyrics line
get_lyrics_line(lyrics_content, lyrics_line, FALSE);
// Process lyrics line
lyric_line_process(lyrics_line, timestamp_length);
} while (lyric_time < timestamp);
line_read = TRUE;
// Show next lyrics
char *label_string = g_strdup_printf("<span color=\"green\" size='12pt'>%s</span>",
priv_lyrics_line);
gtk_label_set_markup(my_media_player_get_lyrics_widget(player),
label_string);
g_free(label_string);
// Try to update label
lyrics_label_update(timestamp, player);
// Pause audio before seek to avoid isolation
gtk_media_stream_pause(stream);
gtk_media_stream_seek(stream, timestamp * 1000);
gtk_media_stream_play(stream);
}
// Check whether the media is playing
static gboolean get_media_playing(gint64 curr_time)
static gboolean get_media_playing(gint64 curr_time,
GtkMediaStream *stream, MyMediaPlayer *player)
{
static gint64 tmp_time = -1;
if (curr_time == tmp_time)
@ -277,26 +339,43 @@ static gboolean get_media_playing(gint64 curr_time)
}
else
{
if (abs(curr_time - tmp_time) > 500)
{
// Reset lyrics load status
reset_lyrics(curr_time, stream, player);
}
tmp_time = curr_time;
return TRUE;
}
}
// Check whether lyrics should be update
static void get_media_stream_status(MyMediaPlayer *player,
GtkMediaStream *stream, gint64 timestamp)
static gboolean get_media_stream_status(MyMediaPlayer *player,
GtkMediaStream *stream, gint64 timestamp)
{
if (timestamp == 0 && !lyrics_updated)
if (timestamp == 0 && !lyrics_updated && !lyrics_loaded)
{
// Load lyrics when a new media loaded
update_lyrics(player);
}
if (get_media_playing(timestamp))
// The Media ended, reset the status
if (gtk_media_stream_get_ended(stream))
{
lyrics_loaded = FALSE;
}
if (get_media_playing(timestamp, stream, player))
{
// Reset status when the media playing
lyrics_updated = FALSE;
return TRUE;
}
else
{
return FALSE;
}
return FALSE;
}
// Time monitor
@ -319,11 +398,9 @@ gboolean lyric_time_func(gpointer data)
gint64 timestamp_ms = timestamp / 1000;
// g_print("%ld\n", timestamp_ms);
// Update lyrics
get_lyrics(timestamp_ms, get_media_playing(timestamp), player);
// Check whether media stopped
get_media_stream_status(player, stream, timestamp_ms);
// Update lyrics and Check whether media stopped
get_lyrics(timestamp_ms, get_media_stream_status(player, stream, timestamp_ms),
player);
}
}
return TRUE;

10
Gtk4/gtk154_mediaplayer3/src/MyMediaPlayer.cpp
View File

@ -83,12 +83,13 @@ static void column_view_activated(GtkColumnView *self, gint position, MyMediaPla
// Play the selected media
MyItem *item;
GFile *music_file;
const char *file_name;
const char *file_name, *disp_name;
// Get selection and open the music file
item = MY_ITEM(gtk_single_selection_get_selected_item(player->music_selection));
file_name = my_item_get_filename(item);
music_file = g_file_new_for_path(file_name);
disp_name = my_item_get_dispname(item);
if (music_file != NULL)
{
// Add file to video widget for play
@ -101,6 +102,11 @@ static void column_view_activated(GtkColumnView *self, gint position, MyMediaPla
filename1[strlen(file_name)] = '\0';
g_object_unref(music_file);
// Set the label for initial status
char *label_str = g_strdup_printf("<span color=\"green\" size='12pt'>%s</span>", disp_name);
gtk_label_set_markup(GTK_LABEL(player->label_lyrics), label_str);
g_free(label_str);
// Force update lyrics file
update_lyrics(player);
}
@ -179,7 +185,7 @@ static void my_media_player_init(MyMediaPlayer *self)
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(self->scrolled_window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
gtk_label_set_markup(GTK_LABEL(self->label_lyrics),
"<span color=\"red\" size='12pt'>No Lyric File Found!</span>");
"<span color=\"red\" size='12pt'>No media file playing!</span>");
// Link signals for buttons
g_signal_connect(self->btn_add, "clicked", G_CALLBACK(btnadd_clicked), self);