mpv/player/misc.c

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/*
* This file is part of mpv.
*
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.
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* 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
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.
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* GNU Lesser General Public License for more details.
*
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
* 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 <pthread.h>
#include <assert.h>
#include "config.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"
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#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"
double rel_time_to_abs(struct MPContext *mpctx, struct m_rel_time t)
{
double length = get_time_length(mpctx);
switch (t.type) {
case REL_TIME_ABSOLUTE:
return t.pos;
case REL_TIME_RELATIVE:
if (t.pos >= 0) {
return t.pos;
} else {
if (length >= 0)
return MPMAX(length + t.pos, 0.0);
}
break;
case REL_TIME_PERCENT:
if (length >= 0)
return length * (t.pos / 100.0);
break;
case REL_TIME_CHAPTER:
if (chapter_start_time(mpctx, t.pos) != MP_NOPTS_VALUE)
return chapter_start_time(mpctx, t.pos);
break;
}
return MP_NOPTS_VALUE;
}
double get_play_end_pts(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
double end = MP_NOPTS_VALUE;
if (opts->play_end.type) {
end = rel_time_to_abs(mpctx, opts->play_end);
} else if (opts->play_length.type) {
double start = rel_time_to_abs(mpctx, opts->play_start);
if (start == MP_NOPTS_VALUE)
start = 0;
double length = rel_time_to_abs(mpctx, opts->play_length);
if (length != MP_NOPTS_VALUE)
end = start + length;
}
if (opts->chapterrange[1] > 0) {
double cend = chapter_start_time(mpctx, opts->chapterrange[1]);
if (cend != MP_NOPTS_VALUE && (end == MP_NOPTS_VALUE || cend < end))
end = cend;
}
return end;
}
float mp_get_cache_percent(struct MPContext *mpctx)
{
struct stream_cache_info info = {0};
if (mpctx->demuxer)
demux_stream_control(mpctx->demuxer, STREAM_CTRL_GET_CACHE_INFO, &info);
if (info.size > 0 && info.fill >= 0)
return info.fill / (info.size / 100.0);
return -1;
}
bool mp_get_cache_idle(struct MPContext *mpctx)
{
struct stream_cache_info info = {0};
if (mpctx->demuxer)
demux_stream_control(mpctx->demuxer, STREAM_CTRL_GET_CACHE_INFO, &info);
return info.idle;
}
void update_vo_playback_state(struct MPContext *mpctx)
{
if (mpctx->video_out) {
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(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);
video: move display and timing to a separate thread The VO is run inside its own thread. It also does most of video timing. The playloop hands the image data and a realtime timestamp to the VO, and the VO does the rest. In particular, this allows the playloop to do other things, instead of blocking for video redraw. But if anything accesses the VO during video timing, it will block. This also fixes vo_sdl.c event handling; but that is only a side-effect, since reimplementing the broken way would require more effort. Also drop --softsleep. In theory, this option helps if the kernel's sleeping mechanism is too inaccurate for video timing. In practice, I haven't ever encountered a situation where it helps, and it just burns CPU cycles. On the other hand it's probably actively harmful, because it prevents the libavcodec decoder threads from doing real work. Side note: Originally, I intended that multiple frames can be queued to the VO. But this is not done, due to problems with OSD and other certain features. OSD in particular is simply designed in a way that it can be neither timed nor copied, so you do have to render it into the video frame before you can draw the next frame. (Subtitles have no such restriction. sd_lavc was even updated to fix this.) It seems the right solution to queuing multiple VO frames is rendering on VO-backed framebuffers, like vo_vdpau.c does. This requires VO driver support, and is out of scope of this commit. As consequence, the VO has a queue size of 1. The existing video queue is just needed to compute frame duration, and will be moved out in the next commit.
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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;
}
mpctx->sleeptime = 0;
}
int stream_dump(struct MPContext *mpctx, const char *source_filename)
{
struct MPOpts *opts = mpctx->opts;
stream_t *stream = stream_open(source_filename, mpctx->global);
if (!stream)
return -1;
int64_t size = stream_get_size(stream);
stream_set_capture_file(stream, opts->stream_dump);
while (mpctx->stop_play == KEEP_PLAYING && !stream->eof) {
if (!opts->quiet && ((stream->pos / (1024 * 1024)) % 2) == 1) {
uint64_t pos = stream->pos;
player: redo terminal OSD and status line handling The terminal OSD code includes the handling of the terminal status line, showing player OSD messages on the terminal, and showing subtitles on terminal (the latter two only if there is no video window, or if terminal OSD is forced). This didn't handle some corner cases correctly. For example, showing an OSD message on the terminal always cleared the previous line, even if the line was an important message (or even just the command prompt, if most other messages were silenced). Attempt to handle this correctly by keeping track of how many lines the terminal OSD currently consists of. Since there could be race conditions with other messages being printed, implement this in msg.c. Now msg.c expects that MSGL_STATUS messages rewrite the status line, so the caller is forced to use a single mp_msg() call to set the status line. Instead of littering print_status() all over the place, update the status only once per playloop iteration in update_osd_msg(). In audio- only mode, the status line might now be a little bit off, but it's perhaps ok. Print the status line only if it has changed, or if another message was printed. This might help with extremely slow terminals, although in audio+video mode, it'll still be updated very often (A-V sync display changes on every frame). Instead of hardcoding the terminal sequences, use terminfo/termcap to get the sequences. Remove the --term-osd-esc option, which allowed to override the hardcoded escapes - it's useless now. The fallback for terminals with no escape sequences for moving the cursor and clearing a line is removed. This somewhat breaks status line display on these terminals, including the MS Windows console: instead of querying the terminal size and clearing the line manually by padding the output with spaces, the line is simply not cleared. I don't expect this to be a problem on UNIX, and on MS Windows we could emulate escape sequences. Note that terminal OSD (other than the status line) was broken anyway on these terminals. In osd.c, the function get_term_width() is not used anymore, so remove it. To remind us that the MS Windows console apparently adds a line break when writint the last column, adjust screen_width in terminal- win.c accordingly.
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MP_MSG(mpctx, MSGL_STATUS, "Dumping %lld/%lld...",
(long long int)pos, (long long int)size);
}
stream_fill_buffer(stream);
mp_process_input(mpctx);
}
free_stream(stream);
return 0;
}
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void merge_playlist_files(struct playlist *pl)
{
if (!pl->first)
return;
char *edl = talloc_strdup(NULL, "edl://");
for (struct playlist_entry *e = pl->first; e; e = e->next) {
if (e != pl->first)
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));
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}
edl = talloc_strdup_append_buffer(edl, e->filename);
}
playlist_clear(pl);
playlist_add_file(pl, edl);
talloc_free(edl);
}
// Create a talloc'ed copy of mpctx->global. It contains a copy of the global
// option struct. It still just references some things though, like mp_log.
// The main purpose is letting threads access the option struct without the
// need for additional synchronization.
struct mpv_global *create_sub_global(struct MPContext *mpctx)
{
struct mpv_global *new = talloc_ptrtype(NULL, new);
struct m_config *new_config = m_config_dup(new, mpctx->mconfig);
*new = (struct mpv_global){
.log = mpctx->global->log,
.opts = new_config->optstruct,
.client_api = mpctx->clients,
};
return new;
}
struct wrapper_args {
struct MPContext *mpctx;
void (*thread_fn)(void *);
void *thread_arg;
pthread_mutex_t mutex;
bool done;
};
static void *thread_wrapper(void *pctx)
{
struct wrapper_args *args = pctx;
mpthread_set_name("opener");
args->thread_fn(args->thread_arg);
pthread_mutex_lock(&args->mutex);
args->done = true;
pthread_mutex_unlock(&args->mutex);
mp_input_wakeup(args->mpctx->input); // this interrupts mp_idle()
return NULL;
}
// Run the thread_fn in a new thread. Wait until the thread returns, but while
// waiting, process input and input commands.
int mpctx_run_reentrant(struct MPContext *mpctx, void (*thread_fn)(void *arg),
void *thread_arg)
{
struct wrapper_args args = {mpctx, thread_fn, thread_arg};
pthread_mutex_init(&args.mutex, NULL);
bool success = false;
pthread_t thread;
if (pthread_create(&thread, NULL, thread_wrapper, &args))
goto done;
while (!success) {
mp_idle(mpctx);
if (mpctx->stop_play)
mp_cancel_trigger(mpctx->playback_abort);
pthread_mutex_lock(&args.mutex);
success |= args.done;
pthread_mutex_unlock(&args.mutex);
}
pthread_join(thread, NULL);
done:
pthread_mutex_destroy(&args.mutex);
return success ? 0 : -1;
}