0
0
mirror of https://github.com/mpv-player/mpv.git synced 2024-09-20 12:02:23 +02:00
mpv/player/misc.c
Dudemanguy b0f31a7637 player: refactor secondary subtitle options and properties
Over the years, we've accumulated several secondary subtitle related
options and properties, but the implementation was not really consistent
and it wasn't clear what the right process for adding more should be. So
to make things nicer, let's refactor all of the subtitle options with
secondary variants (sub-delay, sub-pos, and sub-visibility) and split
them off to a new, separate struct. All of the underlying values are
stored in an array instead for simplicity. Additionally, the
implementation of some secondary-sub-* properties were slightly changed
so there would be less redundancy.
2023-12-16 15:25:32 +00:00

340 lines
10 KiB
C

/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <stdbool.h>
#include <errno.h>
#include <assert.h>
#include "mpv_talloc.h"
#include "osdep/io.h"
#include "osdep/timer.h"
#include "osdep/threads.h"
#include "common/msg.h"
#include "options/options.h"
#include "options/m_property.h"
#include "options/m_config.h"
#include "common/common.h"
#include "common/global.h"
#include "common/encode.h"
#include "common/playlist.h"
#include "input/input.h"
#include "audio/out/ao.h"
#include "demux/demux.h"
#include "stream/stream.h"
#include "video/out/vo.h"
#include "core.h"
#include "command.h"
const int num_ptracks[STREAM_TYPE_COUNT] = {
[STREAM_VIDEO] = 1,
[STREAM_AUDIO] = 1,
[STREAM_SUB] = 2,
};
double rel_time_to_abs(struct MPContext *mpctx, struct m_rel_time t)
{
double length = get_time_length(mpctx);
// Relative times are an offset to the start of the file.
double start = 0;
if (mpctx->demuxer && !mpctx->opts->rebase_start_time)
start = mpctx->demuxer->start_time;
switch (t.type) {
case REL_TIME_ABSOLUTE:
return t.pos;
case REL_TIME_RELATIVE:
if (t.pos >= 0) {
return start + t.pos;
} else {
if (length >= 0)
return start + MPMAX(length + t.pos, 0.0);
}
break;
case REL_TIME_PERCENT:
if (length >= 0)
return start + length * (t.pos / 100.0);
break;
case REL_TIME_CHAPTER:
return chapter_start_time(mpctx, t.pos); // already absolute time
}
return MP_NOPTS_VALUE;
}
static double get_play_end_pts_setting(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
double end = rel_time_to_abs(mpctx, opts->play_end);
double length = rel_time_to_abs(mpctx, opts->play_length);
if (length != MP_NOPTS_VALUE) {
double start = get_play_start_pts(mpctx);
if (end == MP_NOPTS_VALUE || start + length < end)
end = start + length;
}
return end;
}
// Return absolute timestamp against which currently playing media should be
// clipped. Returns MP_NOPTS_VALUE if no clipping should happen.
double get_play_end_pts(struct MPContext *mpctx)
{
double end = get_play_end_pts_setting(mpctx);
double ab[2];
if (mpctx->ab_loop_clip && get_ab_loop_times(mpctx, ab)) {
if (end == MP_NOPTS_VALUE || end > ab[1])
end = ab[1];
}
return end;
}
// Get the absolute PTS at which playback should start.
// Never returns MP_NOPTS_VALUE.
double get_play_start_pts(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
double res = rel_time_to_abs(mpctx, opts->play_start);
if (res == MP_NOPTS_VALUE)
res = get_start_time(mpctx, mpctx->play_dir);
return res;
}
// Get timestamps to use for AB-loop. Returns false iff any of the timestamps
// are invalid and/or AB-loops are currently disabled, and set t[] to either
// the user options or NOPTS on best effort basis.
bool get_ab_loop_times(struct MPContext *mpctx, double t[2])
{
struct MPOpts *opts = mpctx->opts;
int dir = mpctx->play_dir;
t[0] = opts->ab_loop[0];
t[1] = opts->ab_loop[1];
if (!opts->ab_loop_count)
return false;
if (t[0] == MP_NOPTS_VALUE || t[1] == MP_NOPTS_VALUE || t[0] == t[1])
return false;
if (t[0] * dir > t[1] * dir)
MPSWAP(double, t[0], t[1]);
return true;
}
double get_track_seek_offset(struct MPContext *mpctx, struct track *track)
{
struct MPOpts *opts = mpctx->opts;
if (track->selected) {
if (track->type == STREAM_AUDIO)
return -opts->audio_delay;
if (track->type == STREAM_SUB)
{
for (int n = 0; n < num_ptracks[STREAM_SUB]; n++) {
if (mpctx->current_track[n][STREAM_SUB] == track)
return -opts->subs_shared->sub_delay[n];
}
}
}
return 0;
}
void issue_refresh_seek(struct MPContext *mpctx, enum seek_precision min_prec)
{
// let queued seeks execute at a slightly later point
if (mpctx->seek.type) {
mp_wakeup_core(mpctx);
return;
}
// repeat currently ongoing seeks
if (mpctx->current_seek.type) {
mpctx->seek = mpctx->current_seek;
mp_wakeup_core(mpctx);
return;
}
queue_seek(mpctx, MPSEEK_ABSOLUTE, get_current_time(mpctx), min_prec, 0);
}
void update_content_type(struct MPContext *mpctx, struct track *track)
{
enum mp_content_type content_type;
if (!track || !track->vo_c) {
content_type = MP_CONTENT_NONE;
} else if (track->image) {
content_type = MP_CONTENT_IMAGE;
} else {
content_type = MP_CONTENT_VIDEO;
}
if (mpctx->video_out)
vo_control(mpctx->video_out, VOCTRL_CONTENT_TYPE, &content_type);
}
void update_vo_playback_state(struct MPContext *mpctx)
{
if (mpctx->video_out && mpctx->video_out->config_ok) {
struct voctrl_playback_state oldstate = mpctx->vo_playback_state;
struct voctrl_playback_state newstate = {
.taskbar_progress = mpctx->opts->vo->taskbar_progress,
.playing = mpctx->playing,
.paused = mpctx->paused,
.percent_pos = get_percent_pos(mpctx),
};
if (oldstate.taskbar_progress != newstate.taskbar_progress ||
oldstate.playing != newstate.playing ||
oldstate.paused != newstate.paused ||
oldstate.percent_pos != newstate.percent_pos)
{
// Don't update progress bar if it was and still is hidden
if ((oldstate.playing && oldstate.taskbar_progress) ||
(newstate.playing && newstate.taskbar_progress))
{
vo_control_async(mpctx->video_out,
VOCTRL_UPDATE_PLAYBACK_STATE, &newstate);
}
mpctx->vo_playback_state = newstate;
}
} else {
mpctx->vo_playback_state = (struct voctrl_playback_state){ 0 };
}
}
void update_window_title(struct MPContext *mpctx, bool force)
{
if (!mpctx->video_out && !mpctx->ao) {
talloc_free(mpctx->last_window_title);
mpctx->last_window_title = NULL;
return;
}
char *title = mp_property_expand_string(mpctx, mpctx->opts->wintitle);
if (!mpctx->last_window_title || force ||
strcmp(title, mpctx->last_window_title) != 0)
{
talloc_free(mpctx->last_window_title);
mpctx->last_window_title = talloc_steal(mpctx, title);
if (mpctx->video_out)
vo_control(mpctx->video_out, VOCTRL_UPDATE_WINDOW_TITLE, title);
if (mpctx->ao) {
ao_control(mpctx->ao, AOCONTROL_UPDATE_STREAM_TITLE, title);
}
} else {
talloc_free(title);
}
}
void error_on_track(struct MPContext *mpctx, struct track *track)
{
if (!track || !track->selected)
return;
mp_deselect_track(mpctx, track);
if (track->type == STREAM_AUDIO)
MP_INFO(mpctx, "Audio: no audio\n");
if (track->type == STREAM_VIDEO)
MP_INFO(mpctx, "Video: no video\n");
if (mpctx->opts->stop_playback_on_init_failure ||
!(mpctx->vo_chain || mpctx->ao_chain))
{
if (!mpctx->stop_play)
mpctx->stop_play = PT_ERROR;
if (mpctx->error_playing >= 0)
mpctx->error_playing = MPV_ERROR_NOTHING_TO_PLAY;
}
mp_wakeup_core(mpctx);
}
int stream_dump(struct MPContext *mpctx, const char *source_filename)
{
struct MPOpts *opts = mpctx->opts;
stream_t *stream = stream_create(source_filename,
STREAM_ORIGIN_DIRECT | STREAM_READ,
mpctx->playback_abort, mpctx->global);
if (!stream)
return -1;
int64_t size = stream_get_size(stream);
FILE *dest = fopen(opts->stream_dump, "wb");
if (!dest) {
MP_ERR(mpctx, "Error opening dump file: %s\n", mp_strerror(errno));
return -1;
}
bool ok = true;
while (mpctx->stop_play == KEEP_PLAYING && ok) {
if (!opts->quiet && ((stream->pos / (1024 * 1024)) % 2) == 1) {
uint64_t pos = stream->pos;
MP_MSG(mpctx, MSGL_STATUS, "Dumping %lld/%lld...",
(long long int)pos, (long long int)size);
}
uint8_t buf[4096];
int len = stream_read(stream, buf, sizeof(buf));
if (!len) {
ok &= stream->eof;
break;
}
ok &= fwrite(buf, len, 1, dest) == 1;
mp_wakeup_core(mpctx); // don't actually sleep
mp_idle(mpctx); // but process input
}
ok &= fclose(dest) == 0;
free_stream(stream);
return ok ? 0 : -1;
}
void merge_playlist_files(struct playlist *pl)
{
if (!pl->num_entries)
return;
char *edl = talloc_strdup(NULL, "edl://");
for (int n = 0; n < pl->num_entries; n++) {
struct playlist_entry *e = pl->entries[n];
if (n)
edl = talloc_strdup_append_buffer(edl, ";");
// Escape if needed
if (e->filename[strcspn(e->filename, "=%,;\n")] ||
bstr_strip(bstr0(e->filename)).len != strlen(e->filename))
{
// %length%
edl = talloc_asprintf_append_buffer(edl, "%%%zd%%", strlen(e->filename));
}
edl = talloc_strdup_append_buffer(edl, e->filename);
}
playlist_clear(pl);
playlist_add_file(pl, edl);
talloc_free(edl);
}
const char *mp_status_str(enum playback_status st)
{
switch (st) {
case STATUS_SYNCING: return "syncing";
case STATUS_READY: return "ready";
case STATUS_PLAYING: return "playing";
case STATUS_DRAINING: return "draining";
case STATUS_EOF: return "eof";
default: return "bug";
}
}