mpv/player/playloop.c

1031 lines
32 KiB
C
Raw Normal View History

/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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 <assert.h>
#include "config.h"
#include "mpv_talloc.h"
#include "common/msg.h"
#include "options/options.h"
#include "common/common.h"
#include "common/encode.h"
#include "options/m_property.h"
#include "common/playlist.h"
2013-12-17 00:23:09 +00:00
#include "input/input.h"
#include "misc/dispatch.h"
#include "osdep/terminal.h"
#include "osdep/timer.h"
#include "audio/mixer.h"
#include "audio/decode/dec_audio.h"
#include "audio/filter/af.h"
#include "audio/out/ao.h"
#include "demux/demux.h"
#include "stream/stream.h"
#include "sub/osd.h"
#include "video/filter/vf.h"
#include "video/decode/dec_video.h"
#include "video/out/vo.h"
#include "core.h"
#include "client.h"
#include "command.h"
// Wait until mp_input_wakeup(mpctx->input) is called, since the last time
// mp_wait_events() was called. (But see mp_process_input().)
void mp_wait_events(struct MPContext *mpctx, double sleeptime)
{
mp_input_wait(mpctx->input, sleeptime);
}
// Process any queued input, whether it's user input, or requests from client
// API threads. This also resets the "wakeup" flag used with mp_wait_events().
void mp_process_input(struct MPContext *mpctx)
{
mp_dispatch_queue_process(mpctx->dispatch, 0);
for (;;) {
mp_cmd_t *cmd = mp_input_read_cmd(mpctx->input);
if (!cmd)
break;
run_command(mpctx, cmd, NULL);
mp_cmd_free(cmd);
mp_dispatch_queue_process(mpctx->dispatch, 0);
}
}
Relicense some non-MPlayer source files to LGPL 2.1 or later This covers source files which were added in mplayer2 and mpv times only, and where all code is covered by LGPL relicensing agreements. There are probably more files to which this applies, but I'm being conservative here. A file named ao_sdl.c exists in MPlayer too, but the mpv one is a complete rewrite, and was added some time after the original ao_sdl.c was removed. The same applies to vo_sdl.c, for which the SDL2 API is radically different in addition (MPlayer supports SDL 1.2 only). common.c contains only code written by me. But common.h is a strange case: although it originally was named mp_common.h and exists in MPlayer too, by now it contains only definitions written by uau and me. The exceptions are the CONTROL_ defines - thus not changing the license of common.h yet. codec_tags.c contained once large tables generated from MPlayer's codecs.conf, but all of these tables were removed. From demux_playlist.c I'm removing a code fragment from someone who was not asked; this probably could be done later (see commit 15dccc37). misc.c is a bit complicated to reason about (it was split off mplayer.c and thus contains random functions out of this file), but actually all functions have been added post-MPlayer. Except get_relative_time(), which was written by uau, but looks similar to 3 different versions of something similar in each of the Unix/win32/OSX timer source files. I'm not sure what that means in regards to copyright, so I've just moved it into another still-GPL source file for now. screenshot.c once had some minor parts of MPlayer's vf_screenshot.c, but they're all gone.
2016-01-19 17:36:06 +00:00
double get_relative_time(struct MPContext *mpctx)
{
int64_t new_time = mp_time_us();
int64_t delta = new_time - mpctx->last_time;
mpctx->last_time = new_time;
return delta * 0.000001;
}
void pause_player(struct MPContext *mpctx)
{
mpctx->opts->pause = 1;
if (mpctx->video_out)
vo_control(mpctx->video_out, VOCTRL_RESTORE_SCREENSAVER, NULL);
if (mpctx->paused)
goto end;
mpctx->paused = true;
mpctx->step_frames = 0;
mpctx->time_frame -= get_relative_time(mpctx);
mpctx->osd_function = 0;
mpctx->osd_force_update = true;
mpctx->paused_for_cache = false;
if (mpctx->ao && mpctx->ao_chain)
ao_pause(mpctx->ao);
if (mpctx->video_out)
vo_set_paused(mpctx->video_out, true);
end:
mp_notify(mpctx, mpctx->opts->pause ? MPV_EVENT_PAUSE : MPV_EVENT_UNPAUSE, 0);
}
void unpause_player(struct MPContext *mpctx)
{
mpctx->opts->pause = 0;
if (mpctx->video_out && mpctx->opts->stop_screensaver)
vo_control(mpctx->video_out, VOCTRL_KILL_SCREENSAVER, NULL);
if (!mpctx->paused)
goto end;
// Don't actually unpause while cache is loading.
if (mpctx->paused_for_cache)
goto end;
mpctx->paused = false;
mpctx->osd_function = 0;
mpctx->osd_force_update = true;
if (mpctx->ao && mpctx->ao_chain)
ao_resume(mpctx->ao);
if (mpctx->video_out)
vo_set_paused(mpctx->video_out, false);
(void)get_relative_time(mpctx); // ignore time that passed during pause
end:
mp_notify(mpctx, mpctx->opts->pause ? MPV_EVENT_PAUSE : MPV_EVENT_UNPAUSE, 0);
}
void add_step_frame(struct MPContext *mpctx, int dir)
{
if (!mpctx->vo_chain)
return;
if (dir > 0) {
mpctx->step_frames += 1;
unpause_player(mpctx);
} else if (dir < 0) {
if (!mpctx->hrseek_backstep || !mpctx->hrseek_active) {
queue_seek(mpctx, MPSEEK_BACKSTEP, 0, MPSEEK_VERY_EXACT, true);
pause_player(mpctx);
}
}
}
// Clear some playback-related fields on file loading or after seeks.
void reset_playback_state(struct MPContext *mpctx)
{
if (mpctx->lavfi)
lavfi_seek_reset(mpctx->lavfi);
for (int n = 0; n < mpctx->num_tracks; n++) {
if (mpctx->tracks[n]->d_video)
video_reset(mpctx->tracks[n]->d_video);
if (mpctx->tracks[n]->d_audio)
audio_reset_decoding(mpctx->tracks[n]->d_audio);
}
reset_video_state(mpctx);
reset_audio_state(mpctx);
reset_subtitle_state(mpctx);
mpctx->hrseek_active = false;
mpctx->hrseek_framedrop = false;
mpctx->hrseek_lastframe = false;
mpctx->hrseek_backstep = false;
mpctx->playback_pts = MP_NOPTS_VALUE;
mpctx->last_seek_pts = MP_NOPTS_VALUE;
mpctx->cache_wait_time = 0;
mpctx->step_frames = 0;
mpctx->restart_complete = false;
#if HAVE_ENCODING
encode_lavc_discontinuity(mpctx->encode_lavc_ctx);
#endif
}
// return -1 if seek failed (non-seekable stream?), 0 otherwise
static int mp_seek(MPContext *mpctx, struct seek_params seek)
{
struct MPOpts *opts = mpctx->opts;
2016-02-28 18:43:07 +00:00
if (!mpctx->demuxer || seek.type == MPSEEK_NONE || seek.amount == MP_NOPTS_VALUE)
return -1;
if (!mpctx->demuxer->seekable) {
MP_ERR(mpctx, "Can't seek in this file.\n");
return -1;
}
bool hr_seek_very_exact = seek.exact == MPSEEK_VERY_EXACT;
2016-02-28 18:43:07 +00:00
double current_time = get_current_time(mpctx);
if (current_time == MP_NOPTS_VALUE)
current_time = 0;
double seek_pts = MP_NOPTS_VALUE;
int demux_flags = 0;
switch (seek.type) {
case MPSEEK_ABSOLUTE:
2016-02-28 18:43:07 +00:00
seek_pts = seek.amount;
break;
case MPSEEK_BACKSTEP:
2016-02-28 18:43:07 +00:00
seek_pts = current_time;
hr_seek_very_exact = true;
break;
case MPSEEK_RELATIVE:
2016-02-28 18:43:07 +00:00
demux_flags = seek.amount > 0 ? SEEK_FORWARD : SEEK_BACKWARD;
seek_pts = current_time + seek.amount;
break;
case MPSEEK_FACTOR: ;
double len = get_time_length(mpctx);
if (len >= 0)
2016-02-28 18:43:07 +00:00
seek_pts = seek.amount * len;
demux_flags = seek_pts > current_time ? SEEK_FORWARD : SEEK_BACKWARD;
break;
2016-02-28 18:43:07 +00:00
default: abort();
}
2016-02-28 18:43:07 +00:00
double demux_pts = seek_pts;
bool hr_seek = opts->correct_pts && seek.exact != MPSEEK_KEYFRAME &&
((opts->hr_seek == 0 && seek.type == MPSEEK_ABSOLUTE) ||
opts->hr_seek > 0 || seek.exact >= MPSEEK_EXACT) &&
seek_pts != MP_NOPTS_VALUE;
if (seek.type == MPSEEK_FACTOR || seek.amount < 0 ||
(seek.type == MPSEEK_ABSOLUTE && seek.amount < mpctx->last_chapter_pts))
mpctx->last_chapter_seek = -2;
2016-02-28 18:43:07 +00:00
// Under certain circumstances, prefer SEEK_FACTOR.
if (seek.type == MPSEEK_FACTOR && !hr_seek &&
(mpctx->demuxer->ts_resets_possible || seek_pts == MP_NOPTS_VALUE))
{
2016-02-28 18:43:07 +00:00
demux_pts = seek.amount;
demux_flags |= SEEK_FACTOR;
}
2016-02-28 18:43:07 +00:00
if (hr_seek) {
double hr_seek_offset = opts->hr_seek_demuxer_offset;
// Always try to compensate for possibly bad demuxers in "special"
// situations where we need more robustness from the hr-seek code, even
// if the user doesn't use --hr-seek-demuxer-offset.
// The value is arbitrary, but should be "good enough" in most situations.
if (hr_seek_very_exact)
hr_seek_offset = MPMAX(hr_seek_offset, 0.5); // arbitrary
demux_pts -= hr_seek_offset;
demux_flags = (demux_flags | SEEK_HR | SEEK_BACKWARD) & ~SEEK_FORWARD;
}
2016-02-28 18:43:07 +00:00
demux_seek(mpctx->demuxer, demux_pts, demux_flags);
// Seek external, extra files too:
for (int t = 0; t < mpctx->num_tracks; t++) {
struct track *track = mpctx->tracks[t];
if (track->selected && track->is_external && track->demuxer) {
2016-02-28 18:43:07 +00:00
double main_new_pos = demux_pts;
if (demux_flags & SEEK_FACTOR)
main_new_pos = seek_pts;
demux_seek(track->demuxer, main_new_pos, 0);
}
}
clear_audio_output_buffers(mpctx);
reset_playback_state(mpctx);
/* Use the target time as "current position" for further relative
* seeks etc until a new video frame has been decoded */
2016-02-28 18:43:07 +00:00
mpctx->last_seek_pts = seek_pts;
if (hr_seek) {
mpctx->hrseek_active = true;
mpctx->hrseek_framedrop = !hr_seek_very_exact && opts->hr_seek_framedrop;
2016-02-28 18:43:07 +00:00
mpctx->hrseek_backstep = seek.type == MPSEEK_BACKSTEP;
mpctx->hrseek_pts = seek_pts;
MP_VERBOSE(mpctx, "hr-seek, skipping to %f%s%s\n", mpctx->hrseek_pts,
mpctx->hrseek_framedrop ? "" : " (no framedrop)",
mpctx->hrseek_backstep ? " (backstep)" : "");
}
2016-02-28 18:43:07 +00:00
if (mpctx->stop_play == AT_END_OF_FILE)
mpctx->stop_play = KEEP_PLAYING;
mpctx->start_timestamp = mp_time_sec();
2014-07-21 17:31:25 +00:00
mpctx->sleeptime = 0;
mp_notify(mpctx, MPV_EVENT_SEEK, NULL);
mp_notify(mpctx, MPV_EVENT_TICK, NULL);
return 0;
}
player: handle seek delays differently The code removed from handle_input_and_seek_coalesce() did two things: 1. If there's a queued seek, stop accepting non-seek commands, and delay them to the next playloop iteration. 2. If a seek is executing (i.e. the seek was unqueued, and now it's trying to decode and display the first video frame), stop accepting seek commands (and in fact all commands that were queued after the first seek command). This logic is disabled if seeking started longer than 300ms ago. (To avoid starvation.) I'm not sure why 1. would be needed. It's still possible that a command immediately executed after a seek command sees a "seeking in progress" state, because it affects queued seeks only, and not seeks in progress. Drop this code, since it can easily lead to input starvation, and I'm not aware of any disadvantages. The logic in 2. is good to make seeking behave much better, as it guarantees that the video display is updated frequently. Keep the core idea, but implement it differently. Now this logic is applied to seeks only. Commands after the seek can execute freely, and like with 1., I don't see a reason why they couldn't. However, in some cases, seeks are supposed to be executed instantly, so queue_seek() needs an additional parameter to signal the need for immediate update. One nice thing is that commands like sub_seek automatically profit from the seek delay logic. On the other hand, hitting chapter seek multiple times still does not update the video on chapter boundaries (as it should be). Note that the main goal of this commit is actually simplification of the input processing logic and to allow all commands to be executed immediately.
2014-02-07 21:29:50 +00:00
// This combines consecutive seek requests.
void queue_seek(struct MPContext *mpctx, enum seek_type type, double amount,
enum seek_precision exact, bool immediate)
{
struct seek_params *seek = &mpctx->seek;
if (mpctx->stop_play == AT_END_OF_FILE)
mpctx->stop_play = KEEP_PLAYING;
switch (type) {
case MPSEEK_RELATIVE:
player: handle seek delays differently The code removed from handle_input_and_seek_coalesce() did two things: 1. If there's a queued seek, stop accepting non-seek commands, and delay them to the next playloop iteration. 2. If a seek is executing (i.e. the seek was unqueued, and now it's trying to decode and display the first video frame), stop accepting seek commands (and in fact all commands that were queued after the first seek command). This logic is disabled if seeking started longer than 300ms ago. (To avoid starvation.) I'm not sure why 1. would be needed. It's still possible that a command immediately executed after a seek command sees a "seeking in progress" state, because it affects queued seeks only, and not seeks in progress. Drop this code, since it can easily lead to input starvation, and I'm not aware of any disadvantages. The logic in 2. is good to make seeking behave much better, as it guarantees that the video display is updated frequently. Keep the core idea, but implement it differently. Now this logic is applied to seeks only. Commands after the seek can execute freely, and like with 1., I don't see a reason why they couldn't. However, in some cases, seeks are supposed to be executed instantly, so queue_seek() needs an additional parameter to signal the need for immediate update. One nice thing is that commands like sub_seek automatically profit from the seek delay logic. On the other hand, hitting chapter seek multiple times still does not update the video on chapter boundaries (as it should be). Note that the main goal of this commit is actually simplification of the input processing logic and to allow all commands to be executed immediately.
2014-02-07 21:29:50 +00:00
seek->immediate |= immediate;
if (seek->type == MPSEEK_FACTOR)
return; // Well... not common enough to bother doing better
seek->amount += amount;
seek->exact = MPMAX(seek->exact, exact);
if (seek->type == MPSEEK_NONE)
seek->exact = exact;
if (seek->type == MPSEEK_ABSOLUTE)
return;
seek->type = MPSEEK_RELATIVE;
return;
case MPSEEK_ABSOLUTE:
case MPSEEK_FACTOR:
case MPSEEK_BACKSTEP:
*seek = (struct seek_params) {
.type = type,
.amount = amount,
.exact = exact,
player: handle seek delays differently The code removed from handle_input_and_seek_coalesce() did two things: 1. If there's a queued seek, stop accepting non-seek commands, and delay them to the next playloop iteration. 2. If a seek is executing (i.e. the seek was unqueued, and now it's trying to decode and display the first video frame), stop accepting seek commands (and in fact all commands that were queued after the first seek command). This logic is disabled if seeking started longer than 300ms ago. (To avoid starvation.) I'm not sure why 1. would be needed. It's still possible that a command immediately executed after a seek command sees a "seeking in progress" state, because it affects queued seeks only, and not seeks in progress. Drop this code, since it can easily lead to input starvation, and I'm not aware of any disadvantages. The logic in 2. is good to make seeking behave much better, as it guarantees that the video display is updated frequently. Keep the core idea, but implement it differently. Now this logic is applied to seeks only. Commands after the seek can execute freely, and like with 1., I don't see a reason why they couldn't. However, in some cases, seeks are supposed to be executed instantly, so queue_seek() needs an additional parameter to signal the need for immediate update. One nice thing is that commands like sub_seek automatically profit from the seek delay logic. On the other hand, hitting chapter seek multiple times still does not update the video on chapter boundaries (as it should be). Note that the main goal of this commit is actually simplification of the input processing logic and to allow all commands to be executed immediately.
2014-02-07 21:29:50 +00:00
.immediate = immediate,
};
return;
case MPSEEK_NONE:
*seek = (struct seek_params){ 0 };
return;
}
abort();
}
void execute_queued_seek(struct MPContext *mpctx)
{
if (mpctx->seek.type) {
// Let explicitly imprecise seeks cancel precise seeks:
if (mpctx->hrseek_active && mpctx->seek.exact == MPSEEK_KEYFRAME)
mpctx->start_timestamp = -1e9;
player: handle seek delays differently The code removed from handle_input_and_seek_coalesce() did two things: 1. If there's a queued seek, stop accepting non-seek commands, and delay them to the next playloop iteration. 2. If a seek is executing (i.e. the seek was unqueued, and now it's trying to decode and display the first video frame), stop accepting seek commands (and in fact all commands that were queued after the first seek command). This logic is disabled if seeking started longer than 300ms ago. (To avoid starvation.) I'm not sure why 1. would be needed. It's still possible that a command immediately executed after a seek command sees a "seeking in progress" state, because it affects queued seeks only, and not seeks in progress. Drop this code, since it can easily lead to input starvation, and I'm not aware of any disadvantages. The logic in 2. is good to make seeking behave much better, as it guarantees that the video display is updated frequently. Keep the core idea, but implement it differently. Now this logic is applied to seeks only. Commands after the seek can execute freely, and like with 1., I don't see a reason why they couldn't. However, in some cases, seeks are supposed to be executed instantly, so queue_seek() needs an additional parameter to signal the need for immediate update. One nice thing is that commands like sub_seek automatically profit from the seek delay logic. On the other hand, hitting chapter seek multiple times still does not update the video on chapter boundaries (as it should be). Note that the main goal of this commit is actually simplification of the input processing logic and to allow all commands to be executed immediately.
2014-02-07 21:29:50 +00:00
/* If the user seeks continuously (keeps arrow key down)
* try to finish showing a frame from one location before doing
* another seek (which could lead to unchanging display). */
if (!mpctx->seek.immediate && mpctx->video_status < STATUS_READY &&
player: handle seek delays differently The code removed from handle_input_and_seek_coalesce() did two things: 1. If there's a queued seek, stop accepting non-seek commands, and delay them to the next playloop iteration. 2. If a seek is executing (i.e. the seek was unqueued, and now it's trying to decode and display the first video frame), stop accepting seek commands (and in fact all commands that were queued after the first seek command). This logic is disabled if seeking started longer than 300ms ago. (To avoid starvation.) I'm not sure why 1. would be needed. It's still possible that a command immediately executed after a seek command sees a "seeking in progress" state, because it affects queued seeks only, and not seeks in progress. Drop this code, since it can easily lead to input starvation, and I'm not aware of any disadvantages. The logic in 2. is good to make seeking behave much better, as it guarantees that the video display is updated frequently. Keep the core idea, but implement it differently. Now this logic is applied to seeks only. Commands after the seek can execute freely, and like with 1., I don't see a reason why they couldn't. However, in some cases, seeks are supposed to be executed instantly, so queue_seek() needs an additional parameter to signal the need for immediate update. One nice thing is that commands like sub_seek automatically profit from the seek delay logic. On the other hand, hitting chapter seek multiple times still does not update the video on chapter boundaries (as it should be). Note that the main goal of this commit is actually simplification of the input processing logic and to allow all commands to be executed immediately.
2014-02-07 21:29:50 +00:00
mp_time_sec() - mpctx->start_timestamp < 0.3)
return;
mp_seek(mpctx, mpctx->seek);
mpctx->seek = (struct seek_params){0};
}
}
// -1 if unknown
double get_time_length(struct MPContext *mpctx)
{
struct demuxer *demuxer = mpctx->demuxer;
if (!demuxer)
return -1;
double len = demuxer_get_time_length(demuxer);
if (len >= 0)
return len;
return -1; // unknown
}
double get_current_time(struct MPContext *mpctx)
{
struct demuxer *demuxer = mpctx->demuxer;
if (demuxer) {
if (mpctx->playback_pts != MP_NOPTS_VALUE)
return mpctx->playback_pts;
if (mpctx->last_seek_pts != MP_NOPTS_VALUE)
return mpctx->last_seek_pts;
}
return MP_NOPTS_VALUE;
}
double get_playback_time(struct MPContext *mpctx)
{
double cur = get_current_time(mpctx);
if (cur == MP_NOPTS_VALUE)
return cur;
// During seeking, the time corresponds to the last seek time - apply some
// cosmetics to it.
if (mpctx->playback_pts == MP_NOPTS_VALUE) {
double length = get_time_length(mpctx);
if (length >= 0)
cur = MPCLAMP(cur, 0, length);
}
return cur;
}
// Return playback position in 0.0-1.0 ratio, or -1 if unknown.
double get_current_pos_ratio(struct MPContext *mpctx, bool use_range)
{
struct demuxer *demuxer = mpctx->demuxer;
if (!demuxer)
return -1;
double ans = -1;
double start = 0;
double len = get_time_length(mpctx);
if (use_range) {
double startpos = rel_time_to_abs(mpctx, mpctx->opts->play_start);
double endpos = get_play_end_pts(mpctx);
if (endpos == MP_NOPTS_VALUE || endpos > MPMAX(0, len))
endpos = MPMAX(0, len);
if (startpos == MP_NOPTS_VALUE || startpos < 0)
startpos = 0;
if (endpos < startpos)
endpos = startpos;
start = startpos;
len = endpos - startpos;
}
double pos = get_current_time(mpctx);
if (len > 0)
ans = MPCLAMP((pos - start) / len, 0, 1);
if (ans < 0 || demuxer->ts_resets_possible) {
int64_t size;
if (demux_stream_control(demuxer, STREAM_CTRL_GET_SIZE, &size) > 0) {
if (size > 0 && demuxer->filepos >= 0)
ans = MPCLAMP(demuxer->filepos / (double)size, 0, 1);
}
}
if (use_range) {
if (mpctx->opts->play_frames > 0)
ans = MPMAX(ans, 1.0 -
mpctx->max_frames / (double) mpctx->opts->play_frames);
}
return ans;
}
// 0-100, -1 if unknown
int get_percent_pos(struct MPContext *mpctx)
{
double pos = get_current_pos_ratio(mpctx, false);
return pos < 0 ? -1 : pos * 100;
}
// -2 is no chapters, -1 is before first chapter
int get_current_chapter(struct MPContext *mpctx)
{
if (!mpctx->num_chapters)
return -2;
double current_pts = get_current_time(mpctx);
int i;
for (i = 0; i < mpctx->num_chapters; i++)
if (current_pts < mpctx->chapters[i].pts)
break;
return MPMAX(mpctx->last_chapter_seek, i - 1);
}
char *chapter_display_name(struct MPContext *mpctx, int chapter)
{
char *name = chapter_name(mpctx, chapter);
char *dname = NULL;
if (name) {
dname = talloc_asprintf(NULL, "(%d) %s", chapter + 1, name);
} else if (chapter < -1) {
dname = talloc_strdup(NULL, "(unavailable)");
} else {
int chapter_count = get_chapter_count(mpctx);
if (chapter_count <= 0)
dname = talloc_asprintf(NULL, "(%d)", chapter + 1);
else
dname = talloc_asprintf(NULL, "(%d) of %d", chapter + 1,
chapter_count);
}
return dname;
}
// returns NULL if chapter name unavailable
char *chapter_name(struct MPContext *mpctx, int chapter)
{
if (chapter < 0 || chapter >= mpctx->num_chapters)
return NULL;
return mp_tags_get_str(mpctx->chapters[chapter].metadata, "title");
}
// returns the start of the chapter in seconds (NOPTS if unavailable)
double chapter_start_time(struct MPContext *mpctx, int chapter)
{
if (chapter == -1)
return 0;
if (chapter >= 0 && chapter < mpctx->num_chapters)
return mpctx->chapters[chapter].pts;
return MP_NOPTS_VALUE;
}
int get_chapter_count(struct MPContext *mpctx)
{
return mpctx->num_chapters;
}
static void handle_osd_redraw(struct MPContext *mpctx)
{
if (!mpctx->video_out || !mpctx->video_out->config_ok)
return;
// If we're playing normally, let OSD be redrawn naturally as part of
// video display.
if (!mpctx->paused) {
if (mpctx->sleeptime < 0.1 && mpctx->video_status == STATUS_PLAYING)
return;
}
// Don't redraw immediately during a seek (makes it significantly slower).
if (mpctx->vo_chain && mp_time_sec() - mpctx->start_timestamp < 0.1) {
mpctx->sleeptime = MPMIN(mpctx->sleeptime, 0.1);
return;
}
bool want_redraw = osd_query_and_reset_want_redraw(mpctx->osd) ||
vo_want_redraw(mpctx->video_out);
if (!want_redraw)
return;
vo_redraw(mpctx->video_out);
mpctx->sleeptime = 0;
}
static void handle_pause_on_low_cache(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (!mpctx->demuxer)
return;
struct stream_cache_info info = {0};
demux_stream_control(mpctx->demuxer, STREAM_CTRL_GET_CACHE_INFO, &info);
int idle = info.size > 0 ? info.idle : -1;
struct demux_ctrl_reader_state s = {.idle = true, .ts_duration = -1};
demux_control(mpctx->demuxer, DEMUXER_CTRL_GET_READER_STATE, &s);
if (mpctx->restart_complete && idle != -1) {
if (mpctx->paused && mpctx->paused_for_cache) {
if (!opts->cache_pausing || s.ts_duration >= mpctx->cache_wait_time
|| s.idle)
{
double elapsed_time = mp_time_sec() - mpctx->cache_stop_time;
if (elapsed_time > mpctx->cache_wait_time) {
mpctx->cache_wait_time *= 1.5 + 0.1;
} else {
mpctx->cache_wait_time /= 1.5 - 0.1;
}
mpctx->paused_for_cache = false;
if (!opts->pause)
unpause_player(mpctx);
mp_notify(mpctx, MP_EVENT_CACHE_UPDATE, NULL);
}
mpctx->sleeptime = MPMIN(mpctx->sleeptime, 0.2);
} else {
if (opts->cache_pausing && s.underrun) {
bool prev_paused_user = opts->pause;
pause_player(mpctx);
mpctx->paused_for_cache = true;
opts->pause = prev_paused_user;
mpctx->cache_stop_time = mp_time_sec();
mp_notify(mpctx, MP_EVENT_CACHE_UPDATE, NULL);
}
}
mpctx->cache_wait_time = MPCLAMP(mpctx->cache_wait_time, 1, 10);
}
// Also update cache properties.
bool busy = idle == 0;
if (!s.idle) {
busy |= idle != -1;
busy |= mp_client_event_is_registered(mpctx, MP_EVENT_CACHE_UPDATE);
}
if (busy || mpctx->next_cache_update > 0) {
double now = mp_time_sec();
if (mpctx->next_cache_update <= now) {
mpctx->next_cache_update = busy ? now + 0.25 : 0;
mp_notify(mpctx, MP_EVENT_CACHE_UPDATE, NULL);
}
if (mpctx->next_cache_update > 0) {
mpctx->sleeptime =
MPMIN(mpctx->sleeptime, mpctx->next_cache_update - now);
}
}
}
double get_cache_buffering_percentage(struct MPContext *mpctx)
{
if (mpctx->demuxer && mpctx->paused_for_cache && mpctx->cache_wait_time > 0) {
2014-10-07 22:24:35 +00:00
struct demux_ctrl_reader_state s = {.idle = true, .ts_duration = -1};
demux_control(mpctx->demuxer, DEMUXER_CTRL_GET_READER_STATE, &s);
if (s.ts_duration < 0)
s.ts_duration = 0;
return MPCLAMP(s.ts_duration / mpctx->cache_wait_time, 0.0, 1.0);
}
if (mpctx->demuxer && !mpctx->paused_for_cache)
return 1.0;
return -1;
}
static void handle_heartbeat_cmd(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (opts->heartbeat_cmd && !mpctx->paused && mpctx->video_out) {
double now = mp_time_sec();
if (mpctx->next_heartbeat <= now) {
mpctx->next_heartbeat = now + opts->heartbeat_interval;
system(opts->heartbeat_cmd);
}
mpctx->sleeptime = MPMIN(mpctx->sleeptime, mpctx->next_heartbeat - now);
}
}
static void handle_cursor_autohide(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
struct vo *vo = mpctx->video_out;
if (!vo)
return;
bool mouse_cursor_visible = mpctx->mouse_cursor_visible;
double now = mp_time_sec();
unsigned mouse_event_ts = mp_input_get_mouse_event_counter(mpctx->input);
if (mpctx->mouse_event_ts != mouse_event_ts) {
mpctx->mouse_event_ts = mouse_event_ts;
mpctx->mouse_timer = now + opts->cursor_autohide_delay / 1000.0;
mouse_cursor_visible = true;
}
if (mpctx->mouse_timer > now) {
mpctx->sleeptime = MPMIN(mpctx->sleeptime, mpctx->mouse_timer - now);
} else {
mouse_cursor_visible = false;
}
if (opts->cursor_autohide_delay == -1)
mouse_cursor_visible = true;
if (opts->cursor_autohide_delay == -2)
mouse_cursor_visible = false;
if (opts->cursor_autohide_fs && !opts->vo.fullscreen)
mouse_cursor_visible = true;
if (mouse_cursor_visible != mpctx->mouse_cursor_visible)
vo_control(vo, VOCTRL_SET_CURSOR_VISIBILITY, &mouse_cursor_visible);
mpctx->mouse_cursor_visible = mouse_cursor_visible;
}
static void handle_vo_events(struct MPContext *mpctx)
{
struct vo *vo = mpctx->video_out;
int events = vo ? vo_query_and_reset_events(vo, VO_EVENTS_USER) : 0;
if (events & VO_EVENT_RESIZE)
mp_notify(mpctx, MP_EVENT_WIN_RESIZE, NULL);
if (events & VO_EVENT_WIN_STATE)
mp_notify(mpctx, MP_EVENT_WIN_STATE, NULL);
}
static void handle_sstep(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (mpctx->stop_play || !mpctx->restart_complete)
return;
if (opts->step_sec > 0 && !mpctx->paused) {
set_osd_function(mpctx, OSD_FFW);
queue_seek(mpctx, MPSEEK_RELATIVE, opts->step_sec, MPSEEK_DEFAULT, true);
}
if (mpctx->video_status >= STATUS_EOF) {
if (mpctx->max_frames >= 0 && !mpctx->stop_play)
mpctx->stop_play = AT_END_OF_FILE; // force EOF even if audio left
if (mpctx->step_frames > 0 && !mpctx->paused)
pause_player(mpctx);
}
}
static void handle_loop_file(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (opts->loop_file && mpctx->stop_play == AT_END_OF_FILE) {
mpctx->stop_play = KEEP_PLAYING;
set_osd_function(mpctx, OSD_FFW);
queue_seek(mpctx, MPSEEK_ABSOLUTE, 0, MPSEEK_DEFAULT, true);
if (opts->loop_file > 0)
opts->loop_file--;
}
}
void seek_to_last_frame(struct MPContext *mpctx)
{
if (!mpctx->vo_chain)
return;
if (mpctx->hrseek_lastframe) // exit if we already tried this
return;
MP_VERBOSE(mpctx, "seeking to last frame...\n");
// Approximately seek close to the end of the file.
// Usually, it will seek some seconds before end.
double end = get_play_end_pts(mpctx);
if (end == MP_NOPTS_VALUE)
end = get_time_length(mpctx);
mp_seek(mpctx, (struct seek_params){
.type = MPSEEK_ABSOLUTE,
.amount = end,
.exact = MPSEEK_VERY_EXACT,
});
// Make it exact: stop seek only if last frame was reached.
if (mpctx->hrseek_active) {
mpctx->hrseek_pts = 1e99; // "infinite"
mpctx->hrseek_lastframe = true;
}
}
static void handle_keep_open(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (opts->keep_open && mpctx->stop_play == AT_END_OF_FILE &&
(opts->keep_open == 2 || !playlist_get_next(mpctx->playlist, 1)) &&
opts->loop_times == 1)
{
mpctx->stop_play = KEEP_PLAYING;
if (mpctx->vo_chain) {
if (!vo_has_frame(mpctx->video_out)) // EOF not reached normally
seek_to_last_frame(mpctx);
mpctx->playback_pts = mpctx->last_vo_pts;
}
if (!mpctx->opts->pause)
pause_player(mpctx);
}
}
static void handle_chapter_change(struct MPContext *mpctx)
{
int chapter = get_current_chapter(mpctx);
if (chapter != mpctx->last_chapter) {
mpctx->last_chapter = chapter;
mp_notify(mpctx, MPV_EVENT_CHAPTER_CHANGE, NULL);
}
}
// Execute a forceful refresh of the VO window. This clears the window from
// the previous video. It also creates/destroys the VO on demand.
// It tries to make the change only in situations where the window is
// definitely needed or not needed, or if the force parameter is set (the
// latter also decides whether to clear an existing window, because there's
// no way to know if this has already been done or not).
int handle_force_window(struct MPContext *mpctx, bool force)
{
// True if we're either in idle mode, or loading of the file has finished.
// It's also set via force in some stages during file loading.
bool act = !mpctx->playing || mpctx->playback_initialized || force;
// On the other hand, if a video track is selected, but no video is ever
// decoded on it, then create the window.
bool stalled_video = mpctx->playback_initialized && mpctx->restart_complete &&
mpctx->video_status == STATUS_EOF && mpctx->vo_chain &&
!mpctx->video_out->config_ok;
// Don't interfere with real video playback
if (mpctx->vo_chain && !stalled_video)
return 0;
if (!mpctx->opts->force_vo) {
if (act && !mpctx->vo_chain)
uninit_video_out(mpctx);
return 0;
}
if (mpctx->opts->force_vo != 2 && !act)
return 0;
if (!mpctx->video_out) {
struct vo_extra ex = {
.input_ctx = mpctx->input,
.osd = mpctx->osd,
.encode_lavc_ctx = mpctx->encode_lavc_ctx,
};
mpctx->video_out = init_best_video_out(mpctx->global, &ex);
if (!mpctx->video_out)
goto err;
mpctx->mouse_cursor_visible = true;
}
if (!mpctx->video_out->config_ok || force) {
struct vo *vo = mpctx->video_out;
// Pick whatever works
int config_format = 0;
uint8_t fmts[IMGFMT_END - IMGFMT_START] = {0};
vo_query_formats(vo, fmts);
for (int fmt = IMGFMT_START; fmt < IMGFMT_END; fmt++) {
if (fmts[fmt - IMGFMT_START]) {
config_format = fmt;
break;
}
}
int w = 960;
int h = 480;
struct mp_image_params p = {
.imgfmt = config_format,
.w = w, .h = h,
.p_w = 1, .p_h = 1,
};
if (vo_reconfig(vo, &p) < 0)
goto err;
vo_control(vo, VOCTRL_RESTORE_SCREENSAVER, NULL);
vo_set_paused(vo, true);
vo_redraw(vo);
mp_notify(mpctx, MPV_EVENT_VIDEO_RECONFIG, NULL);
}
return 0;
err:
mpctx->opts->force_vo = 0;
uninit_video_out(mpctx);
MP_FATAL(mpctx, "Error opening/initializing the VO window.\n");
return -1;
}
// Potentially needed by some Lua scripts, which assume TICK always comes.
static void handle_dummy_ticks(struct MPContext *mpctx)
{
if (mpctx->video_status == STATUS_EOF || mpctx->paused) {
if (mp_time_sec() - mpctx->last_idle_tick > 0.050) {
mpctx->last_idle_tick = mp_time_sec();
mp_notify(mpctx, MPV_EVENT_TICK, NULL);
}
}
}
// We always make sure audio and video buffers are filled before actually
// starting playback. This code handles starting them at the same time.
static void handle_playback_restart(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (mpctx->audio_status < STATUS_READY ||
mpctx->video_status < STATUS_READY)
return;
if (mpctx->video_status == STATUS_READY) {
mpctx->video_status = STATUS_PLAYING;
get_relative_time(mpctx);
mpctx->sleeptime = 0;
}
if (mpctx->audio_status == STATUS_READY)
fill_audio_out_buffers(mpctx); // actually play prepared buffer
if (!mpctx->restart_complete) {
mpctx->hrseek_active = false;
mpctx->restart_complete = true;
mp_notify(mpctx, MPV_EVENT_PLAYBACK_RESTART, NULL);
if (!mpctx->playing_msg_shown) {
if (opts->playing_msg && opts->playing_msg[0]) {
char *msg =
mp_property_expand_escaped_string(mpctx, opts->playing_msg);
struct mp_log *log = mp_log_new(NULL, mpctx->log, "!term-msg");
mp_info(log, "%s\n", msg);
talloc_free(log);
talloc_free(msg);
}
if (opts->osd_playing_msg && opts->osd_playing_msg[0]) {
char *msg =
mp_property_expand_escaped_string(mpctx, opts->osd_playing_msg);
set_osd_msg(mpctx, 1, opts->osd_duration, "%s", msg);
talloc_free(msg);
}
}
mpctx->playing_msg_shown = true;
MP_VERBOSE(mpctx, "playback restart complete\n");
}
}
static void handle_eof(struct MPContext *mpctx)
{
/* Don't quit while paused and we're displaying the last video frame. On the
* other hand, if we don't have a video frame, then the user probably seeked
* outside of the video, and we do want to quit. */
bool prevent_eof =
mpctx->paused && mpctx->video_out && vo_has_frame(mpctx->video_out);
/* It's possible for the user to simultaneously switch both audio
* and video streams to "disabled" at runtime. Handle this by waiting
* rather than immediately stopping playback due to EOF.
*/
if ((mpctx->ao_chain || mpctx->vo_chain) && !prevent_eof &&
mpctx->audio_status == STATUS_EOF &&
mpctx->video_status == STATUS_EOF &&
!mpctx->stop_play)
{
mpctx->stop_play = AT_END_OF_FILE;
}
}
static void handle_complex_filter_decoders(struct MPContext *mpctx)
{
if (!mpctx->lavfi)
return;
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (!track->selected)
continue;
if (!track->sink || !lavfi_needs_input(track->sink))
continue;
if (track->d_audio) {
audio_work(track->d_audio);
struct mp_audio *fr;
int res = audio_get_frame(track->d_audio, &fr);
if (res == DATA_OK) {
lavfi_send_frame_a(track->sink, fr);
} else {
lavfi_send_status(track->sink, res);
}
}
if (track->d_video) {
video_work(track->d_video);
struct mp_image *fr;
int res = video_get_frame(track->d_video, &fr);
if (res == DATA_OK) {
lavfi_send_frame_v(track->sink, fr);
} else {
lavfi_send_status(track->sink, res);
}
}
}
}
void run_playloop(struct MPContext *mpctx)
{
#if HAVE_ENCODING
if (encode_lavc_didfail(mpctx->encode_lavc_ctx)) {
mpctx->stop_play = PT_QUIT;
return;
}
#endif
update_demuxer_properties(mpctx);
handle_complex_filter_decoders(mpctx);
handle_cursor_autohide(mpctx);
handle_vo_events(mpctx);
handle_heartbeat_cmd(mpctx);
handle_command_updates(mpctx);
fill_audio_out_buffers(mpctx);
write_video(mpctx);
if (mpctx->lavfi) {
if (lavfi_process(mpctx->lavfi))
mpctx->sleeptime = 0;
if (lavfi_has_failed(mpctx->lavfi))
mpctx->stop_play = AT_END_OF_FILE;
}
handle_playback_restart(mpctx);
// Use the audio timestamp if no video, or video is enabled, but has ended.
if (mpctx->video_status == STATUS_EOF &&
mpctx->audio_status >= STATUS_PLAYING &&
mpctx->audio_status < STATUS_EOF)
{
mpctx->playback_pts = playing_audio_pts(mpctx);
}
handle_dummy_ticks(mpctx);
update_osd_msg(mpctx);
if (!mpctx->video_out)
update_subtitles(mpctx, mpctx->playback_pts);
handle_eof(mpctx);
handle_loop_file(mpctx);
handle_ab_loop(mpctx);
handle_keep_open(mpctx);
handle_sstep(mpctx);
if (mpctx->stop_play)
return;
handle_osd_redraw(mpctx);
mp_wait_events(mpctx, mpctx->sleeptime);
mpctx->sleeptime = 1e9; // infinite for all practical purposes
handle_pause_on_low_cache(mpctx);
mp_process_input(mpctx);
handle_chapter_change(mpctx);
handle_force_window(mpctx, false);
execute_queued_seek(mpctx);
}
void mp_idle(struct MPContext *mpctx)
{
handle_dummy_ticks(mpctx);
mp_wait_events(mpctx, mpctx->sleeptime);
mpctx->sleeptime = 100.0;
mp_process_input(mpctx);
handle_command_updates(mpctx);
handle_cursor_autohide(mpctx);
handle_vo_events(mpctx);
update_osd_msg(mpctx);
handle_osd_redraw(mpctx);
}
// Waiting for the slave master to send us a new file to play.
void idle_loop(struct MPContext *mpctx)
{
// ================= idle loop (STOP state) =========================
bool need_reinit = true;
while (mpctx->opts->player_idle_mode && !mpctx->playlist->current
&& mpctx->stop_play != PT_QUIT)
{
if (need_reinit) {
uninit_audio_out(mpctx);
handle_force_window(mpctx, true);
mpctx->sleeptime = 0;
mp_notify(mpctx, MPV_EVENT_IDLE, NULL);
need_reinit = false;
}
mp_idle(mpctx);
}
}