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756ae0321b
mpv/player/osd.c
wm4 b0b5de3063 f_decoder_wrapper: replace most public fields with setters/getters 
I may (optionally) move decoding to a separate thread in a future
change. It's a bit attractive to move the entire decoder wrapper to
there, so if the demuxer has a new packet, it doesn't have to wake up
the main thread, and can directly wake up the decoder. (Although that's
bullshit, since there's a queue in between, and libavcodec's
multi-threaded decoding plays cross-threads ping pong with packets
anyway. On the other hand, the main thread would still have to shuffle
the packets around, so whatever, just seems like better design.)

As preparation, there shouldn't be any mutable state exposed by the
wrapper. But there's still a large number of corner-caseish crap, so
just use setters/getters for them. This recorder thing will inherently
not work, so it'll have to be disabled if threads are used.

This is a bit painful, but probably still the right thing. Like
speculatively pulling teeth.
2020-02-29 01:23:20 +01:00

573 lines
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/*
* 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 <inttypes.h>
#include <math.h>
#include <limits.h>
#include <assert.h>
#include "config.h"
#include "mpv_talloc.h"
#include "common/msg.h"
#include "common/msg_control.h"
#include "options/options.h"
#include "common/common.h"
#include "options/m_property.h"
#include "filters/f_decoder_wrapper.h"
#include "common/encode.h"
#include "osdep/terminal.h"
#include "osdep/timer.h"
#include "demux/demux.h"
#include "stream/stream.h"
#include "sub/osd.h"
#include "video/out/vo.h"
#include "core.h"
#include "command.h"
#define saddf(var, ...) (*(var) = talloc_asprintf_append((*var), __VA_ARGS__))
// append time in the hh:mm:ss format (plus fractions if wanted)
static void sadd_hhmmssff(char **buf, double time, bool fractions)
{
char *s = mp_format_time(time, fractions);
*buf = talloc_strdup_append(*buf, s);
talloc_free(s);
}
static void sadd_percentage(char **buf, int percent) {
if (percent >= 0)
*buf = talloc_asprintf_append(*buf, " (%d%%)", percent);
}
static char *join_lines(void *ta_ctx, char **parts, int num_parts)
{
char *res = talloc_strdup(ta_ctx, "");
for (int n = 0; n < num_parts; n++)
res = talloc_asprintf_append(res, "%s%s", n ? "\n" : "", parts[n]);
return res;
}
static void term_osd_update(struct MPContext *mpctx)
{
int num_parts = 0;
char *parts[3] = {0};
if (!mpctx->opts->use_terminal)
return;
if (mpctx->term_osd_subs && mpctx->term_osd_subs[0])
parts[num_parts++] = mpctx->term_osd_subs;
if (mpctx->term_osd_text && mpctx->term_osd_text[0])
parts[num_parts++] = mpctx->term_osd_text;
if (mpctx->term_osd_status && mpctx->term_osd_status[0])
parts[num_parts++] = mpctx->term_osd_status;
char *s = join_lines(mpctx, parts, num_parts);
if (strcmp(mpctx->term_osd_contents, s) == 0 &&
mp_msg_has_status_line(mpctx->global))
{
talloc_free(s);
} else {
talloc_free(mpctx->term_osd_contents);
mpctx->term_osd_contents = s;
mp_msg(mpctx->statusline, MSGL_STATUS, "%s", s);
}
}
void term_osd_set_subs(struct MPContext *mpctx, const char *text)
{
if (mpctx->video_out || !text || !mpctx->opts->subs_rend->sub_visibility)
text = ""; // disable
if (strcmp(mpctx->term_osd_subs ? mpctx->term_osd_subs : "", text) == 0)
return;
talloc_free(mpctx->term_osd_subs);
mpctx->term_osd_subs = talloc_strdup(mpctx, text);
term_osd_update(mpctx);
}
static void term_osd_set_text_lazy(struct MPContext *mpctx, const char *text)
{
bool video_osd = mpctx->video_out && mpctx->opts->video_osd;
if ((video_osd && mpctx->opts->term_osd != 1) || !text)
text = ""; // disable
talloc_free(mpctx->term_osd_text);
mpctx->term_osd_text = talloc_strdup(mpctx, text);
}
static void term_osd_set_status_lazy(struct MPContext *mpctx, const char *text)
{
talloc_free(mpctx->term_osd_status);
mpctx->term_osd_status = talloc_strdup(mpctx, text);
int w = 80, h = 24;
terminal_get_size(&w, &h);
if (strlen(mpctx->term_osd_status) > w && !strchr(mpctx->term_osd_status, '\n'))
mpctx->term_osd_status[w] = '\0';
}
static void add_term_osd_bar(struct MPContext *mpctx, char **line, int width)
{
struct MPOpts *opts = mpctx->opts;
if (width < 5)
return;
int pos = get_current_pos_ratio(mpctx, false) * (width - 3);
pos = MPCLAMP(pos, 0, width - 3);
bstr chars = bstr0(opts->term_osd_bar_chars);
bstr parts[5];
for (int n = 0; n < 5; n++)
parts[n] = bstr_split_utf8(chars, &chars);
saddf(line, "\r%.*s", BSTR_P(parts[0]));
for (int n = 0; n < pos; n++)
saddf(line, "%.*s", BSTR_P(parts[1]));
saddf(line, "%.*s", BSTR_P(parts[2]));
for (int n = 0; n < width - 3 - pos; n++)
saddf(line, "%.*s", BSTR_P(parts[3]));
saddf(line, "%.*s", BSTR_P(parts[4]));
}
static bool is_busy(struct MPContext *mpctx)
{
return !mpctx->restart_complete && mp_time_sec() - mpctx->start_timestamp > 0.3;
}
static char *get_term_status_msg(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (opts->status_msg)
return mp_property_expand_escaped_string(mpctx, opts->status_msg);
char *line = NULL;
// Playback status
if (is_busy(mpctx)) {
saddf(&line, "(...) ");
} else if (mpctx->paused_for_cache && !opts->pause) {
saddf(&line, "(Buffering) ");
} else if (mpctx->paused) {
saddf(&line, "(Paused) ");
}
if (mpctx->ao_chain)
saddf(&line, "A");
if (mpctx->vo_chain)
saddf(&line, "V");
saddf(&line, ": ");
// Playback position
sadd_hhmmssff(&line, get_playback_time(mpctx), opts->osd_fractions);
saddf(&line, " / ");
sadd_hhmmssff(&line, get_time_length(mpctx), opts->osd_fractions);
sadd_percentage(&line, get_percent_pos(mpctx));
// other
if (opts->playback_speed != 1)
saddf(&line, " x%4.2f", opts->playback_speed);
// A-V sync
if (mpctx->ao_chain && mpctx->vo_chain && !mpctx->vo_chain->is_sparse) {
saddf(&line, " A-V:%7.3f", mpctx->last_av_difference);
if (fabs(mpctx->total_avsync_change) > 0.05)
saddf(&line, " ct:%7.3f", mpctx->total_avsync_change);
}
double position = get_current_pos_ratio(mpctx, true);
char lavcbuf[80];
if (encode_lavc_getstatus(mpctx->encode_lavc_ctx, lavcbuf, sizeof(lavcbuf),
position) >= 0)
{
// encoding stats
saddf(&line, " %s", lavcbuf);
} else {
// VO stats
if (mpctx->vo_chain) {
if (mpctx->display_sync_active) {
char *r = mp_property_expand_string(mpctx,
"${?vsync-ratio:${vsync-ratio}}");
if (r[0]) {
saddf(&line, " DS: %s/%"PRId64, r,
vo_get_delayed_count(mpctx->video_out));
}
talloc_free(r);
}
int64_t c = vo_get_drop_count(mpctx->video_out);
struct mp_decoder_wrapper *dec = mpctx->vo_chain->track
? mpctx->vo_chain->track->dec : NULL;
int dropped_frames =
dec ? mp_decoder_wrapper_get_frames_dropped(dec) : 0;
if (c > 0 || dropped_frames > 0) {
saddf(&line, " Dropped: %"PRId64, c);
if (dropped_frames)
saddf(&line, "/%d", dropped_frames);
}
}
}
if (mpctx->demuxer && demux_is_network_cached(mpctx->demuxer)) {
saddf(&line, " Cache: ");
struct demux_reader_state s;
demux_get_reader_state(mpctx->demuxer, &s);
if (s.ts_duration < 0) {
saddf(&line, "???");
} else if (s.ts_duration < 10) {
saddf(&line, "%2.1fs", s.ts_duration);
} else {
saddf(&line, "%2ds", (int)s.ts_duration);
}
int64_t cache_size = s.fw_bytes;
if (cache_size > 0) {
if (cache_size >= 1024 * 1024) {
saddf(&line, "/%lldMB", (long long)(cache_size / 1024 / 1024));
} else {
saddf(&line, "/%lldKB", (long long)(cache_size / 1024));
}
}
}
return line;
}
static void term_osd_print_status_lazy(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
update_window_title(mpctx, false);
update_vo_playback_state(mpctx);
if (!opts->use_terminal)
return;
if (opts->quiet || !mpctx->playback_initialized ||
!mpctx->playing_msg_shown || mpctx->stop_play)
{
if (!mpctx->playing || mpctx->stop_play) {
mp_msg_flush_status_line(mpctx->log);
term_osd_set_status_lazy(mpctx, "");
}
return;
}
char *line = get_term_status_msg(mpctx);
if (opts->term_osd_bar) {
saddf(&line, "\n");
int w = 80, h = 24;
terminal_get_size(&w, &h);
add_term_osd_bar(mpctx, &line, w);
}
term_osd_set_status_lazy(mpctx, line);
talloc_free(line);
}
static bool set_osd_msg_va(struct MPContext *mpctx, int level, int time,
const char *fmt, va_list ap)
{
if (level > mpctx->opts->osd_level)
return false;
talloc_free(mpctx->osd_msg_text);
mpctx->osd_msg_text = talloc_vasprintf(mpctx, fmt, ap);
mpctx->osd_show_pos = false;
mpctx->osd_msg_next_duration = time / 1000.0;
mpctx->osd_force_update = true;
mp_wakeup_core(mpctx);
if (mpctx->osd_msg_next_duration <= 0)
mpctx->osd_msg_visible = mp_time_sec();
return true;
}
bool set_osd_msg(struct MPContext *mpctx, int level, int time,
const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
bool r = set_osd_msg_va(mpctx, level, time, fmt, ap);
va_end(ap);
return r;
}
// type: mp_osd_font_codepoints, ASCII, or OSD_BAR_*
void set_osd_bar(struct MPContext *mpctx, int type,
double min, double max, double neutral, double val)
{
struct MPOpts *opts = mpctx->opts;
bool video_osd = mpctx->video_out && mpctx->opts->video_osd;
if (opts->osd_level < 1 || !opts->osd_bar_visible || !video_osd)
return;
mpctx->osd_visible = mp_time_sec() + opts->osd_duration / 1000.0;
mpctx->osd_progbar.type = type;
mpctx->osd_progbar.value = (val - min) / (max - min);
mpctx->osd_progbar.num_stops = 0;
if (neutral > min && neutral < max) {
float pos = (neutral - min) / (max - min);
MP_TARRAY_APPEND(mpctx, mpctx->osd_progbar.stops,
mpctx->osd_progbar.num_stops, pos);
}
osd_set_progbar(mpctx->osd, &mpctx->osd_progbar);
mp_wakeup_core(mpctx);
}
// Update a currently displayed bar of the same type, without resetting the
// timer.
static void update_osd_bar(struct MPContext *mpctx, int type,
double min, double max, double val)
{
if (mpctx->osd_progbar.type != type)
return;
float new_value = (val - min) / (max - min);
if (new_value != mpctx->osd_progbar.value) {
mpctx->osd_progbar.value = new_value;
osd_set_progbar(mpctx->osd, &mpctx->osd_progbar);
}
}
void set_osd_bar_chapters(struct MPContext *mpctx, int type)
{
if (mpctx->osd_progbar.type != type)
return;
mpctx->osd_progbar.num_stops = 0;
double len = get_time_length(mpctx);
if (len > 0) {
// Always render the loop points, even if they're incomplete.
double ab[2];
bool valid = get_ab_loop_times(mpctx, ab);
for (int n = 0; n < 2; n++) {
if (ab[n] != MP_NOPTS_VALUE) {
MP_TARRAY_APPEND(mpctx, mpctx->osd_progbar.stops,
mpctx->osd_progbar.num_stops, ab[n] / len);
}
}
if (!valid) {
int num = get_chapter_count(mpctx);
for (int n = 0; n < num; n++) {
double time = chapter_start_time(mpctx, n);
if (time >= 0) {
float pos = time / len;
MP_TARRAY_APPEND(mpctx, mpctx->osd_progbar.stops,
mpctx->osd_progbar.num_stops, pos);
}
}
}
}
osd_set_progbar(mpctx->osd, &mpctx->osd_progbar);
mp_wakeup_core(mpctx);
}
// osd_function is the symbol appearing in the video status, such as OSD_PLAY
void set_osd_function(struct MPContext *mpctx, int osd_function)
{
struct MPOpts *opts = mpctx->opts;
mpctx->osd_function = osd_function;
mpctx->osd_function_visible = mp_time_sec() + opts->osd_duration / 1000.0;
mpctx->osd_force_update = true;
mp_wakeup_core(mpctx);
}
void get_current_osd_sym(struct MPContext *mpctx, char *buf, size_t buf_size)
{
int sym = mpctx->osd_function;
if (!sym) {
if (is_busy(mpctx) || (mpctx->paused_for_cache && !mpctx->opts->pause)) {
sym = OSD_CLOCK;
} else if (mpctx->paused || mpctx->step_frames) {
sym = OSD_PAUSE;
} else {
sym = OSD_PLAY;
}
}
osd_get_function_sym(buf, buf_size, sym);
}
static void sadd_osd_status(char **buffer, struct MPContext *mpctx, int level)
{
assert(level >= 0 && level <= 3);
if (level == 0)
return;
char *msg = mpctx->opts->osd_msg[level - 1];
if (msg && msg[0]) {
char *text = mp_property_expand_escaped_string(mpctx, msg);
*buffer = talloc_strdup_append(*buffer, text);
talloc_free(text);
} else if (level >= 2) {
bool fractions = mpctx->opts->osd_fractions;
char sym[10];
get_current_osd_sym(mpctx, sym, sizeof(sym));
saddf(buffer, "%s ", sym);
char *custom_msg = mpctx->opts->osd_status_msg;
if (custom_msg && level == 3) {
char *text = mp_property_expand_escaped_string(mpctx, custom_msg);
*buffer = talloc_strdup_append(*buffer, text);
talloc_free(text);
} else {
sadd_hhmmssff(buffer, get_playback_time(mpctx), fractions);
if (level == 3) {
saddf(buffer, " / ");
sadd_hhmmssff(buffer, get_time_length(mpctx), fractions);
sadd_percentage(buffer, get_percent_pos(mpctx));
}
}
}
}
// OSD messages initated by seeking commands are added lazily with this
// function, because multiple successive seek commands can be coalesced.
static void add_seek_osd_messages(struct MPContext *mpctx)
{
if (mpctx->add_osd_seek_info & OSD_SEEK_INFO_BAR) {
double pos = get_current_pos_ratio(mpctx, false);
set_osd_bar(mpctx, OSD_BAR_SEEK, 0, 1, 0, MPCLAMP(pos, 0, 1));
set_osd_bar_chapters(mpctx, OSD_BAR_SEEK);
}
if (mpctx->add_osd_seek_info & OSD_SEEK_INFO_TEXT) {
// Never in term-osd mode
bool video_osd = mpctx->video_out && mpctx->opts->video_osd;
if (video_osd && mpctx->opts->term_osd != 1) {
if (set_osd_msg(mpctx, 1, mpctx->opts->osd_duration, ""))
mpctx->osd_show_pos = true;
}
}
if (mpctx->add_osd_seek_info & OSD_SEEK_INFO_CHAPTER_TEXT) {
char *chapter = chapter_display_name(mpctx, get_current_chapter(mpctx));
set_osd_msg(mpctx, 1, mpctx->opts->osd_duration,
"Chapter: %s", chapter);
talloc_free(chapter);
}
if (mpctx->add_osd_seek_info & OSD_SEEK_INFO_CURRENT_FILE) {
if (mpctx->filename) {
set_osd_msg(mpctx, 1, mpctx->opts->osd_duration, "%s",
mpctx->filename);
}
}
mpctx->add_osd_seek_info = 0;
}
// Update the OSD text (both on VO and terminal status line).
void update_osd_msg(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
struct osd_state *osd = mpctx->osd;
double now = mp_time_sec();
if (!mpctx->osd_force_update) {
// Assume nothing is going on at all.
if (!mpctx->osd_idle_update)
return;
double delay = 0.050; // update the OSD at most this often
double diff = now - mpctx->osd_last_update;
if (diff < delay) {
mp_set_timeout(mpctx, delay - diff);
return;
}
}
mpctx->osd_force_update = false;
mpctx->osd_idle_update = false;
mpctx->osd_last_update = now;
if (mpctx->osd_visible) {
double sleep = mpctx->osd_visible - now;
if (sleep > 0) {
mp_set_timeout(mpctx, sleep);
mpctx->osd_idle_update = true;
} else {
mpctx->osd_visible = 0;
mpctx->osd_progbar.type = -1; // disable
osd_set_progbar(mpctx->osd, &mpctx->osd_progbar);
}
}
if (mpctx->osd_function_visible) {
double sleep = mpctx->osd_function_visible - now;
if (sleep > 0) {
mp_set_timeout(mpctx, sleep);
mpctx->osd_idle_update = true;
} else {
mpctx->osd_function_visible = 0;
mpctx->osd_function = 0;
}
}
if (mpctx->osd_msg_next_duration > 0) {
// This is done to avoid cutting the OSD message short if slow commands
// are executed between setting the OSD message and showing it.
mpctx->osd_msg_visible = now + mpctx->osd_msg_next_duration;
mpctx->osd_msg_next_duration = 0;
}
if (mpctx->osd_msg_visible) {
double sleep = mpctx->osd_msg_visible - now;
if (sleep > 0) {
mp_set_timeout(mpctx, sleep);
mpctx->osd_idle_update = true;
} else {
talloc_free(mpctx->osd_msg_text);
mpctx->osd_msg_text = NULL;
mpctx->osd_msg_visible = 0;
mpctx->osd_show_pos = false;
}
}
add_seek_osd_messages(mpctx);
if (mpctx->osd_progbar.type == OSD_BAR_SEEK) {
double pos = get_current_pos_ratio(mpctx, false);
update_osd_bar(mpctx, OSD_BAR_SEEK, 0, 1, MPCLAMP(pos, 0, 1));
}
term_osd_set_text_lazy(mpctx, mpctx->osd_msg_text);
term_osd_print_status_lazy(mpctx);
term_osd_update(mpctx);
if (!opts->video_osd)
return;
int osd_level = opts->osd_level;
if (mpctx->osd_show_pos)
osd_level = 3;
char *text = NULL;
sadd_osd_status(&text, mpctx, osd_level);
if (mpctx->osd_msg_text && mpctx->osd_msg_text[0]) {
text = talloc_asprintf_append(text, "%s%s", text ? "\n" : "",
mpctx->osd_msg_text);
}
osd_set_text(osd, text);
talloc_free(text);
}
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