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a392f91170
mpv/player/loadfile.c
Dudemanguy 8150682814 player/loadfile: rewrite sub autoselection logic 
There's too many dumb options related to subtitles which have annoying
edge cases. Try to rewrite this completely so it hopefully behaves
normally in every expected scenario. A key goal here is be smarter while
looping through the tracks and avoid selecting the subtitle if it
doesn't meet user's passed options as opposed to clearing the pick after
the fact. Fixes #13280 and fixes #13263.
2024-02-24 05:26:37 +00:00

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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 <strings.h>
#include <inttypes.h>
#include <assert.h>
#include <libavutil/avutil.h>
#include "mpv_talloc.h"
#include "misc/thread_pool.h"
#include "misc/thread_tools.h"
#include "osdep/io.h"
#include "osdep/terminal.h"
#include "osdep/threads.h"
#include "osdep/timer.h"
#include "client.h"
#include "common/msg.h"
#include "common/msg_control.h"
#include "common/global.h"
#include "options/path.h"
#include "options/m_config.h"
#include "options/parse_configfile.h"
#include "common/playlist.h"
#include "options/options.h"
#include "options/m_property.h"
#include "common/common.h"
#include "common/encode.h"
#include "common/stats.h"
#include "input/input.h"
#include "misc/language.h"
#include "audio/out/ao.h"
#include "filters/f_decoder_wrapper.h"
#include "filters/f_lavfi.h"
#include "filters/filter_internal.h"
#include "demux/demux.h"
#include "stream/stream.h"
#include "sub/dec_sub.h"
#include "external_files.h"
#include "video/out/vo.h"
#include "core.h"
#include "command.h"
#include "libmpv/client.h"
// Called from the demuxer thread if a new packet is available, or other changes.
static void wakeup_demux(void *pctx)
{
struct MPContext *mpctx = pctx;
mp_wakeup_core(mpctx);
}
// Called by foreign threads when playback should be stopped and such.
void mp_abort_playback_async(struct MPContext *mpctx)
{
mp_cancel_trigger(mpctx->playback_abort);
mp_mutex_lock(&mpctx->abort_lock);
for (int n = 0; n < mpctx->num_abort_list; n++) {
struct mp_abort_entry *abort = mpctx->abort_list[n];
if (abort->coupled_to_playback)
mp_abort_trigger_locked(mpctx, abort);
}
mp_mutex_unlock(&mpctx->abort_lock);
}
// Add it to the global list, and allocate required data structures.
void mp_abort_add(struct MPContext *mpctx, struct mp_abort_entry *abort)
{
mp_mutex_lock(&mpctx->abort_lock);
assert(!abort->cancel);
abort->cancel = mp_cancel_new(NULL);
MP_TARRAY_APPEND(NULL, mpctx->abort_list, mpctx->num_abort_list, abort);
mp_abort_recheck_locked(mpctx, abort);
mp_mutex_unlock(&mpctx->abort_lock);
}
// Remove Add it to the global list, and free/clear required data structures.
// Does not deallocate the abort value itself.
void mp_abort_remove(struct MPContext *mpctx, struct mp_abort_entry *abort)
{
mp_mutex_lock(&mpctx->abort_lock);
for (int n = 0; n < mpctx->num_abort_list; n++) {
if (mpctx->abort_list[n] == abort) {
MP_TARRAY_REMOVE_AT(mpctx->abort_list, mpctx->num_abort_list, n);
TA_FREEP(&abort->cancel);
abort = NULL; // it's not free'd, just clear for the assert below
break;
}
}
assert(!abort); // should have been in the list
mp_mutex_unlock(&mpctx->abort_lock);
}
// Verify whether the abort needs to be signaled after changing certain fields
// in abort.
void mp_abort_recheck_locked(struct MPContext *mpctx,
struct mp_abort_entry *abort)
{
if ((abort->coupled_to_playback && mp_cancel_test(mpctx->playback_abort)) ||
mpctx->abort_all)
{
mp_abort_trigger_locked(mpctx, abort);
}
}
void mp_abort_trigger_locked(struct MPContext *mpctx,
struct mp_abort_entry *abort)
{
mp_cancel_trigger(abort->cancel);
}
static void kill_demuxers_reentrant(struct MPContext *mpctx,
struct demuxer **demuxers, int num_demuxers)
{
struct demux_free_async_state **items = NULL;
int num_items = 0;
for (int n = 0; n < num_demuxers; n++) {
struct demuxer *d = demuxers[n];
if (!demux_cancel_test(d)) {
// Make sure it is set if it wasn't yet.
demux_set_wakeup_cb(d, wakeup_demux, mpctx);
struct demux_free_async_state *item = demux_free_async(d);
if (item) {
MP_TARRAY_APPEND(NULL, items, num_items, item);
d = NULL;
}
}
demux_cancel_and_free(d);
}
if (!num_items)
return;
MP_DBG(mpctx, "Terminating demuxers...\n");
double end = mp_time_sec() + mpctx->opts->demux_termination_timeout;
bool force = false;
while (num_items) {
double wait = end - mp_time_sec();
for (int n = 0; n < num_items; n++) {
struct demux_free_async_state *item = items[n];
if (demux_free_async_finish(item)) {
items[n] = items[num_items - 1];
num_items -= 1;
n--;
goto repeat;
} else if (wait < 0) {
demux_free_async_force(item);
if (!force)
MP_VERBOSE(mpctx, "Forcefully terminating demuxers...\n");
force = true;
}
}
if (wait >= 0)
mp_set_timeout(mpctx, wait);
mp_idle(mpctx);
repeat:;
}
talloc_free(items);
MP_DBG(mpctx, "Done terminating demuxers.\n");
}
static void uninit_demuxer(struct MPContext *mpctx)
{
for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
for (int r = 0; r < num_ptracks[t]; r++)
mpctx->current_track[r][t] = NULL;
}
talloc_free(mpctx->chapters);
mpctx->chapters = NULL;
mpctx->num_chapters = 0;
mp_abort_cache_dumping(mpctx);
struct demuxer **demuxers = NULL;
int num_demuxers = 0;
if (mpctx->demuxer)
MP_TARRAY_APPEND(NULL, demuxers, num_demuxers, mpctx->demuxer);
mpctx->demuxer = NULL;
for (int i = 0; i < mpctx->num_tracks; i++) {
struct track *track = mpctx->tracks[i];
assert(!track->dec && !track->d_sub);
assert(!track->vo_c && !track->ao_c);
assert(!track->sink);
// Demuxers can be added in any order (if they appear mid-stream), and
// we can't know which tracks uses which, so here's some O(n^2) trash.
for (int n = 0; n < num_demuxers; n++) {
if (demuxers[n] == track->demuxer) {
track->demuxer = NULL;
break;
}
}
if (track->demuxer)
MP_TARRAY_APPEND(NULL, demuxers, num_demuxers, track->demuxer);
talloc_free(track);
}
mpctx->num_tracks = 0;
kill_demuxers_reentrant(mpctx, demuxers, num_demuxers);
talloc_free(demuxers);
}
#define APPEND(s, ...) mp_snprintf_cat(s, sizeof(s), __VA_ARGS__)
static void print_stream(struct MPContext *mpctx, struct track *t)
{
struct sh_stream *s = t->stream;
const char *tname = "?";
const char *selopt = "?";
const char *langopt = "?";
switch (t->type) {
case STREAM_VIDEO:
tname = "Video"; selopt = "vid"; langopt = NULL;
break;
case STREAM_AUDIO:
tname = "Audio"; selopt = "aid"; langopt = "alang";
break;
case STREAM_SUB:
tname = "Subs"; selopt = "sid"; langopt = "slang";
break;
}
char b[2048] = {0};
bool forced_only = false;
if (t->type == STREAM_SUB) {
bool forced_opt = mpctx->opts->subs_rend->sub_forced_events_only;
if (forced_opt)
forced_only = t->selected;
}
APPEND(b, " %3s %-5s", t->selected ? (forced_only ? "(*)" : "(+)") : "", tname);
APPEND(b, " --%s=%d", selopt, t->user_tid);
if (t->lang && langopt)
APPEND(b, " --%s=%s", langopt, t->lang);
if (t->default_track)
APPEND(b, " (*)");
if (t->forced_track)
APPEND(b, " (f)");
if (t->attached_picture)
APPEND(b, " [P]");
if (forced_only)
APPEND(b, " [F]");
if (t->title)
APPEND(b, " '%s'", t->title);
const char *codec = s ? s->codec->codec : NULL;
APPEND(b, " (%s", codec ? codec : "<unknown>");
if (t->type == STREAM_VIDEO) {
if (s && s->codec->disp_w)
APPEND(b, " %dx%d", s->codec->disp_w, s->codec->disp_h);
if (s && s->codec->fps)
APPEND(b, " %.3ffps", s->codec->fps);
} else if (t->type == STREAM_AUDIO) {
if (s && s->codec->channels.num)
APPEND(b, " %dch", s->codec->channels.num);
if (s && s->codec->samplerate)
APPEND(b, " %dHz", s->codec->samplerate);
}
APPEND(b, ")");
if (s && s->hls_bitrate > 0)
APPEND(b, " (%d kbps)", (s->hls_bitrate + 500) / 1000);
if (t->is_external)
APPEND(b, " (external)");
MP_INFO(mpctx, "%s\n", b);
}
void print_track_list(struct MPContext *mpctx, const char *msg)
{
if (msg)
MP_INFO(mpctx, "%s\n", msg);
for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
for (int n = 0; n < mpctx->num_tracks; n++)
if (mpctx->tracks[n]->type == t)
print_stream(mpctx, mpctx->tracks[n]);
}
}
void update_demuxer_properties(struct MPContext *mpctx)
{
struct demuxer *demuxer = mpctx->demuxer;
if (!demuxer)
return;
demux_update(demuxer, get_current_time(mpctx));
int events = demuxer->events;
if ((events & DEMUX_EVENT_INIT) && demuxer->num_editions > 1) {
for (int n = 0; n < demuxer->num_editions; n++) {
struct demux_edition *edition = &demuxer->editions[n];
char b[128] = {0};
APPEND(b, " %3s --edition=%d",
n == demuxer->edition ? "(+)" : "", n);
char *name = mp_tags_get_str(edition->metadata, "title");
if (name)
APPEND(b, " '%s'", name);
if (edition->default_edition)
APPEND(b, " (*)");
MP_INFO(mpctx, "%s\n", b);
}
}
struct demuxer *tracks = mpctx->demuxer;
if (tracks->events & DEMUX_EVENT_STREAMS) {
add_demuxer_tracks(mpctx, tracks);
print_track_list(mpctx, NULL);
tracks->events &= ~DEMUX_EVENT_STREAMS;
}
if (events & DEMUX_EVENT_METADATA) {
struct mp_tags *info =
mp_tags_filtered(mpctx, demuxer->metadata, mpctx->opts->display_tags);
// prev is used to attempt to print changed tags only (to some degree)
struct mp_tags *prev = mpctx->filtered_tags;
int n_prev = 0;
bool had_output = false;
for (int n = 0; n < info->num_keys; n++) {
if (prev && n_prev < prev->num_keys) {
if (strcmp(prev->keys[n_prev], info->keys[n]) == 0) {
n_prev++;
if (strcmp(prev->values[n_prev - 1], info->values[n]) == 0)
continue;
}
}
struct mp_log *log = mp_log_new(NULL, mpctx->log, "!display-tags");
if (!had_output)
mp_info(log, "File tags:\n");
mp_info(log, " %s: %s\n", info->keys[n], info->values[n]);
had_output = true;
talloc_free(log);
}
talloc_free(mpctx->filtered_tags);
mpctx->filtered_tags = info;
mp_notify(mpctx, MP_EVENT_METADATA_UPDATE, NULL);
}
if (events & DEMUX_EVENT_DURATION)
mp_notify(mpctx, MP_EVENT_DURATION_UPDATE, NULL);
demuxer->events = 0;
}
// Enables or disables the stream for the given track, according to
// track->selected.
// With refresh_only=true, refreshes the stream if it's enabled.
void reselect_demux_stream(struct MPContext *mpctx, struct track *track,
bool refresh_only)
{
if (!track->stream)
return;
double pts = get_current_time(mpctx);
if (pts != MP_NOPTS_VALUE) {
pts += get_track_seek_offset(mpctx, track);
if (track->type == STREAM_SUB)
pts -= 10.0;
}
if (refresh_only)
demuxer_refresh_track(track->demuxer, track->stream, pts);
else
demuxer_select_track(track->demuxer, track->stream, pts, track->selected);
}
static void enable_demux_thread(struct MPContext *mpctx, struct demuxer *demux)
{
if (mpctx->opts->demuxer_thread && !demux->fully_read) {
demux_set_wakeup_cb(demux, wakeup_demux, mpctx);
demux_start_thread(demux);
}
}
static int find_new_tid(struct MPContext *mpctx, enum stream_type t)
{
int new_id = 0;
for (int i = 0; i < mpctx->num_tracks; i++) {
struct track *track = mpctx->tracks[i];
if (track->type == t)
new_id = MPMAX(new_id, track->user_tid);
}
return new_id + 1;
}
static struct track *add_stream_track(struct MPContext *mpctx,
struct demuxer *demuxer,
struct sh_stream *stream)
{
for (int i = 0; i < mpctx->num_tracks; i++) {
struct track *track = mpctx->tracks[i];
if (track->stream == stream)
return track;
}
struct track *track = talloc_ptrtype(NULL, track);
*track = (struct track) {
.type = stream->type,
.user_tid = find_new_tid(mpctx, stream->type),
.demuxer_id = stream->demuxer_id,
.ff_index = stream->ff_index,
.hls_bitrate = stream->hls_bitrate,
.program_id = stream->program_id,
.title = stream->title,
.default_track = stream->default_track,
.forced_track = stream->forced_track,
.dependent_track = stream->dependent_track,
.visual_impaired_track = stream->visual_impaired_track,
.hearing_impaired_track = stream->hearing_impaired_track,
.image = stream->image,
.attached_picture = stream->attached_picture != NULL,
.lang = stream->lang,
.demuxer = demuxer,
.stream = stream,
};
MP_TARRAY_APPEND(mpctx, mpctx->tracks, mpctx->num_tracks, track);
mp_notify(mpctx, MP_EVENT_TRACKS_CHANGED, NULL);
return track;
}
void add_demuxer_tracks(struct MPContext *mpctx, struct demuxer *demuxer)
{
for (int n = 0; n < demux_get_num_stream(demuxer); n++)
add_stream_track(mpctx, demuxer, demux_get_stream(demuxer, n));
}
// Result numerically higher => better match. 0 == no match.
static int match_lang(char **langs, const char *lang)
{
if (!lang)
return 0;
for (int idx = 0; langs && langs[idx]; idx++) {
int score = mp_match_lang_single(langs[idx], lang);
if (score > 0)
return INT_MAX - (idx + 1) * LANGUAGE_SCORE_MAX + score - 1;
}
return 0;
}
/* Get the track wanted by the user.
* tid is the track ID requested by the user (-2: deselect, -1: default)
* lang is a string list, NULL is same as empty list
* Sort tracks based on the following criteria, and pick the first:
*0a) track matches tid (always wins)
* 0b) track is not from --external-file
* 1) track is external (no_default cancels this)
* 1b) track was passed explicitly (is not an auto-loaded subtitle)
* 1c) track matches the program ID of the video
* 2) earlier match in lang list but not if we're using os_langs
* 3a) track is marked forced and we're preferring forced tracks
* 3b) track is marked non-forced and we're preferring non-forced tracks
* 3c) track is marked default
* 3d) match in lang list with os_langs
* 4) attached picture, HLS bitrate
* 5) lower track number
* If select_fallback is not set, 5) is only used to determine whether a
* matching track is preferred over another track. Otherwise, always pick a
* track (if nothing else matches, return the track with lowest ID).
* Forced tracks are preferred when the user prefers not to display subtitles
*/
// Return whether t1 is preferred over t2
static bool compare_track(struct track *t1, struct track *t2, char **langs, bool os_langs,
bool forced, struct MPOpts *opts, int preferred_program)
{
bool sub = t2->type == STREAM_SUB;
if (!opts->autoload_files && t1->is_external != t2->is_external)
return !t1->is_external;
bool ext1 = t1->is_external && !t1->no_default;
bool ext2 = t2->is_external && !t2->no_default;
if (ext1 != ext2) {
if (t1->attached_picture && t2->attached_picture
&& opts->audio_display == 1)
return !ext1;
return ext1;
}
if (t1->auto_loaded != t2->auto_loaded)
return !t1->auto_loaded;
if (preferred_program != -1 && t1->program_id != -1 && t2->program_id != -1) {
if ((t1->program_id == preferred_program) !=
(t2->program_id == preferred_program))
return t1->program_id == preferred_program;
}
int l1 = match_lang(langs, t1->lang), l2 = match_lang(langs, t2->lang);
t1->forced_select = sub && forced && t1->forced_track;
if (!os_langs && l1 != l2)
return l1 > l2;
if (forced)
return t1->forced_track;
if (sub && !t2->forced_select && t2->forced_track)
return !t1->forced_track;
if (t1->default_track != t2->default_track && !t2->forced_select)
return t1->default_track;
if (os_langs && l1 != l2)
return l1 > l2;
if (t1->attached_picture != t2->attached_picture)
return !t1->attached_picture;
if (t1->stream && t2->stream && opts->hls_bitrate >= 0 &&
t1->stream->hls_bitrate != t2->stream->hls_bitrate)
{
bool t1_ok = t1->stream->hls_bitrate <= opts->hls_bitrate;
bool t2_ok = t2->stream->hls_bitrate <= opts->hls_bitrate;
if (t1_ok != t2_ok)
return t1_ok;
if (t1_ok && t2_ok)
return t1->stream->hls_bitrate > t2->stream->hls_bitrate;
return t1->stream->hls_bitrate < t2->stream->hls_bitrate;
}
return t1->user_tid <= t2->user_tid;
}
static bool duplicate_track(struct MPContext *mpctx, int order,
enum stream_type type, struct track *track)
{
for (int i = 0; i < order; i++) {
if (mpctx->current_track[i][type] == track)
return true;
}
return false;
}
static bool append_lang(size_t *nb, char ***out, char *in)
{
if (!in)
return false;
MP_TARRAY_GROW(NULL, *out, *nb + 1);
(*out)[(*nb)++] = in;
(*out)[*nb] = NULL;
ta_set_parent(in, *out);
return true;
}
static char **add_os_langs(void)
{
size_t nb = 0;
char **out = NULL;
char **autos = mp_get_user_langs();
for (int i = 0; autos && autos[i]; i++) {
if (!append_lang(&nb, &out, autos[i]))
goto cleanup;
}
cleanup:
talloc_free(autos);
return out;
}
static char **process_langs(char **in)
{
size_t nb = 0;
char **out = NULL;
for (int i = 0; in && in[i]; i++) {
if (!append_lang(&nb, &out, talloc_strdup(NULL, in[i])))
break;
}
return out;
}
static const char *get_audio_lang(struct MPContext *mpctx)
{
// If we have a single current audio track, this is simple.
if (mpctx->current_track[0][STREAM_AUDIO])
return mpctx->current_track[0][STREAM_AUDIO]->lang;
const char *ret = NULL;
// Otherwise, we may be using a filter with multiple inputs.
// Iterate over the tracks and find the ones in use.
for (int i = 0; i < mpctx->num_tracks; i++) {
const struct track *t = mpctx->tracks[i];
if (t->type != STREAM_AUDIO || !t->selected)
continue;
// If we have input in multiple audio languages, bail out;
// we don't have a meaningful single language.
// Partial matches (e.g. en-US vs en-GB) are acceptable here.
if (ret && t->lang && !mp_match_lang_single(t->lang, ret))
return NULL;
// We'll return the first non-null tag we see
if (!ret)
ret = t->lang;
}
return ret;
}
struct track *select_default_track(struct MPContext *mpctx, int order,
enum stream_type type)
{
struct MPOpts *opts = mpctx->opts;
int tid = opts->stream_id[order][type];
int preferred_program = (type != STREAM_VIDEO && mpctx->current_track[0][STREAM_VIDEO]) ?
mpctx->current_track[0][STREAM_VIDEO]->program_id : -1;
if (tid == -2)
return NULL;
char **langs = process_langs(opts->stream_lang[type]);
bool os_langs = false;
// Try to add OS languages if enabled by the user and we don't already have a lang from slang.
if (type == STREAM_SUB && (!langs || !strcmp(langs[0], "")) && opts->subs_match_os_language) {
talloc_free(langs);
langs = add_os_langs();
os_langs = true;
}
const char *audio_lang = get_audio_lang(mpctx);
bool sub = type == STREAM_SUB;
struct track *pick = NULL;
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (track->type != type)
continue;
if (track->user_tid == tid) {
pick = track;
goto cleanup;
}
if (tid >= 0)
continue;
if (track->no_auto_select)
continue;
if (duplicate_track(mpctx, order, type, track))
continue;
if (sub) {
// Subtitle specific auto-selecting crap.
bool audio_matches = mp_match_lang_single(audio_lang, track->lang);
bool forced = track->forced_track && (opts->subs_fallback_forced == 2 ||
(audio_matches && opts->subs_fallback_forced == 1));
bool lang_match = !os_langs && match_lang(langs, track->lang) > 0;
bool subs_fallback = (track->is_external && !track->no_default) || opts->subs_fallback == 2 ||
(opts->subs_fallback == 1 && track->default_track);
bool subs_matching_audio = (!match_lang(langs, audio_lang) || opts->subs_with_matching_audio == 2 ||
(opts->subs_with_matching_audio == 1 && track->forced_track));
if (subs_matching_audio && ((!pick && (forced || lang_match || subs_fallback)) ||
(pick && compare_track(track, pick, langs, os_langs, forced, mpctx->opts, preferred_program))))
{
pick = track;
}
} else if (!pick || compare_track(track, pick, langs, os_langs, false, mpctx->opts, preferred_program)) {
pick = track;
}
}
if (pick && pick->attached_picture && !mpctx->opts->audio_display)
pick = NULL;
if (pick && !opts->autoload_files && pick->is_external)
pick = NULL;
cleanup:
talloc_free(langs);
return pick;
}
static char *track_layout_hash(struct MPContext *mpctx)
{
char *h = talloc_strdup(NULL, "");
for (int type = 0; type < STREAM_TYPE_COUNT; type++) {
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (track->type != type)
continue;
h = talloc_asprintf_append_buffer(h, "%d-%d-%d-%d-%s\n", type,
track->user_tid, track->default_track, track->is_external,
track->lang ? track->lang : "");
}
}
return h;
}
// Normally, video/audio/sub track selection is persistent across files. This
// code resets track selection if the new file has a different track layout.
static void check_previous_track_selection(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (!mpctx->track_layout_hash)
return;
char *h = track_layout_hash(mpctx);
if (strcmp(h, mpctx->track_layout_hash) != 0) {
// Reset selection, but only if they're not "auto" or "off". The
// defaults are -1 (default selection), or -2 (off) for secondary tracks.
for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
for (int i = 0; i < num_ptracks[t]; i++) {
if (opts->stream_id[i][t] >= 0)
mark_track_selection(mpctx, i, t, i == 0 ? -1 : -2);
}
}
talloc_free(mpctx->track_layout_hash);
mpctx->track_layout_hash = NULL;
}
talloc_free(h);
}
// Update the matching track selection user option to the given value.
void mark_track_selection(struct MPContext *mpctx, int order,
enum stream_type type, int value)
{
assert(order >= 0 && order < num_ptracks[type]);
mpctx->opts->stream_id[order][type] = value;
m_config_notify_change_opt_ptr(mpctx->mconfig,
&mpctx->opts->stream_id[order][type]);
}
void mp_switch_track_n(struct MPContext *mpctx, int order, enum stream_type type,
struct track *track, int flags)
{
assert(!track || track->type == type);
assert(type >= 0 && type < STREAM_TYPE_COUNT);
assert(order >= 0 && order < num_ptracks[type]);
// Mark the current track selection as explicitly user-requested. (This is
// different from auto-selection or disabling a track due to errors.)
if (flags & FLAG_MARK_SELECTION)
mark_track_selection(mpctx, order, type, track ? track->user_tid : -2);
// No decoder should be initialized yet.
if (!mpctx->demuxer)
return;
struct track *current = mpctx->current_track[order][type];
if (track == current)
return;
if (current && current->sink) {
MP_ERR(mpctx, "Can't disable input to complex filter.\n");
goto error;
}
if ((type == STREAM_VIDEO && mpctx->vo_chain && !mpctx->vo_chain->track) ||
(type == STREAM_AUDIO && mpctx->ao_chain && !mpctx->ao_chain->track))
{
MP_ERR(mpctx, "Can't switch away from complex filter output.\n");
goto error;
}
if (track && track->selected) {
// Track has been selected in a different order parameter.
MP_ERR(mpctx, "Track %d is already selected.\n", track->user_tid);
goto error;
}
if (order == 0) {
if (type == STREAM_VIDEO) {
uninit_video_chain(mpctx);
if (!track)
handle_force_window(mpctx, true);
} else if (type == STREAM_AUDIO) {
clear_audio_output_buffers(mpctx);
uninit_audio_chain(mpctx);
if (!track)
uninit_audio_out(mpctx);
}
}
if (type == STREAM_SUB)
uninit_sub(mpctx, current);
if (current) {
current->selected = false;
reselect_demux_stream(mpctx, current, false);
}
mpctx->current_track[order][type] = track;
if (track) {
track->selected = true;
reselect_demux_stream(mpctx, track, false);
}
if (type == STREAM_VIDEO && order == 0) {
reinit_video_chain(mpctx);
} else if (type == STREAM_AUDIO && order == 0) {
reinit_audio_chain(mpctx);
} else if (type == STREAM_SUB && order >= 0 && order <= 2) {
reinit_sub(mpctx, track);
}
mp_notify(mpctx, MP_EVENT_TRACK_SWITCHED, NULL);
mp_wakeup_core(mpctx);
talloc_free(mpctx->track_layout_hash);
mpctx->track_layout_hash = talloc_steal(mpctx, track_layout_hash(mpctx));
return;
error:
mark_track_selection(mpctx, order, type, -1);
}
void mp_switch_track(struct MPContext *mpctx, enum stream_type type,
struct track *track, int flags)
{
mp_switch_track_n(mpctx, 0, type, track, flags);
}
void mp_deselect_track(struct MPContext *mpctx, struct track *track)
{
if (track && track->selected) {
for (int t = 0; t < num_ptracks[track->type]; t++) {
if (mpctx->current_track[t][track->type] != track)
continue;
mp_switch_track_n(mpctx, t, track->type, NULL, 0);
mark_track_selection(mpctx, t, track->type, -1); // default
}
}
}
struct track *mp_track_by_tid(struct MPContext *mpctx, enum stream_type type,
int tid)
{
if (tid == -1)
return mpctx->current_track[0][type];
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (track->type == type && track->user_tid == tid)
return track;
}
return NULL;
}
bool mp_remove_track(struct MPContext *mpctx, struct track *track)
{
if (!track->is_external)
return false;
mp_deselect_track(mpctx, track);
if (track->selected)
return false;
struct demuxer *d = track->demuxer;
int index = 0;
while (index < mpctx->num_tracks && mpctx->tracks[index] != track)
index++;
MP_TARRAY_REMOVE_AT(mpctx->tracks, mpctx->num_tracks, index);
talloc_free(track);
// Close the demuxer, unless there is still a track using it. These are
// all external tracks.
bool in_use = false;
for (int n = mpctx->num_tracks - 1; n >= 0 && !in_use; n--)
in_use |= mpctx->tracks[n]->demuxer == d;
if (!in_use)
demux_cancel_and_free(d);
mp_notify(mpctx, MP_EVENT_TRACKS_CHANGED, NULL);
return true;
}
// Add the given file as additional track. The filter argument controls how or
// if tracks are auto-selected at any point.
// To be run on a worker thread, locked (temporarily unlocks core).
// cancel will generally be used to abort the loading process, but on success
// the demuxer is changed to be slaved to mpctx->playback_abort instead.
int mp_add_external_file(struct MPContext *mpctx, char *filename,
enum stream_type filter, struct mp_cancel *cancel,
bool cover_art)
{
struct MPOpts *opts = mpctx->opts;
if (!filename || mp_cancel_test(cancel))
return -1;
char *disp_filename = filename;
if (strncmp(disp_filename, "memory://", 9) == 0)
disp_filename = "memory://"; // avoid noise
struct demuxer_params params = {
.is_top_level = true,
.stream_flags = STREAM_ORIGIN_DIRECT,
};
switch (filter) {
case STREAM_SUB:
params.force_format = opts->sub_demuxer_name;
break;
case STREAM_AUDIO:
params.force_format = opts->audio_demuxer_name;
break;
}
mp_core_unlock(mpctx);
struct demuxer *demuxer =
demux_open_url(filename, &params, cancel, mpctx->global);
if (demuxer)
enable_demux_thread(mpctx, demuxer);
mp_core_lock(mpctx);
// The command could have overlapped with playback exiting. (We don't care
// if playback has started again meanwhile - weird, but not a problem.)
if (mpctx->stop_play)
goto err_out;
if (!demuxer)
goto err_out;
if (filter != STREAM_SUB && opts->rebase_start_time)
demux_set_ts_offset(demuxer, -demuxer->start_time);
bool has_any = false;
for (int n = 0; n < demux_get_num_stream(demuxer); n++) {
struct sh_stream *sh = demux_get_stream(demuxer, n);
if (sh->type == filter || filter == STREAM_TYPE_COUNT) {
has_any = true;
break;
}
}
if (!has_any) {
char *tname = mp_tprintf(20, "%s ", stream_type_name(filter));
if (filter == STREAM_TYPE_COUNT)
tname = "";
MP_ERR(mpctx, "No %sstreams in file %s.\n", tname, disp_filename);
goto err_out;
}
int first_num = -1;
for (int n = 0; n < demux_get_num_stream(demuxer); n++) {
struct sh_stream *sh = demux_get_stream(demuxer, n);
struct track *t = add_stream_track(mpctx, demuxer, sh);
t->is_external = true;
if (sh->title && sh->title[0]) {
t->title = talloc_strdup(t, sh->title);
} else {
t->title = talloc_strdup(t, mp_basename(disp_filename));
}
t->external_filename = talloc_strdup(t, filename);
t->no_default = sh->type != filter;
t->no_auto_select = t->no_default;
// if we found video, and we are loading cover art, flag as such.
t->attached_picture = t->type == STREAM_VIDEO && cover_art;
if (first_num < 0 && (filter == STREAM_TYPE_COUNT || sh->type == filter))
first_num = mpctx->num_tracks - 1;
}
mp_cancel_set_parent(demuxer->cancel, mpctx->playback_abort);
return first_num;
err_out:
demux_cancel_and_free(demuxer);
if (!mp_cancel_test(cancel))
MP_ERR(mpctx, "Can not open external file %s.\n", disp_filename);
return -1;
}
// to be run on a worker thread, locked (temporarily unlocks core)
static void open_external_files(struct MPContext *mpctx, char **files,
enum stream_type filter)
{
// Need a copy, because the option value could be mutated during iteration.
void *tmp = talloc_new(NULL);
files = mp_dup_str_array(tmp, files);
for (int n = 0; files && files[n]; n++)
// when given filter is set to video, we are loading up cover art
mp_add_external_file(mpctx, files[n], filter, mpctx->playback_abort,
filter == STREAM_VIDEO);
talloc_free(tmp);
}
// See mp_add_external_file() for meaning of cancel parameter.
void autoload_external_files(struct MPContext *mpctx, struct mp_cancel *cancel)
{
struct MPOpts *opts = mpctx->opts;
if (opts->sub_auto < 0 && opts->audiofile_auto < 0 && opts->coverart_auto < 0)
return;
if (!opts->autoload_files || strcmp(mpctx->filename, "-") == 0)
return;
void *tmp = talloc_new(NULL);
struct subfn *list = find_external_files(mpctx->global, mpctx->filename, opts);
talloc_steal(tmp, list);
int sc[STREAM_TYPE_COUNT] = {0};
for (int n = 0; n < mpctx->num_tracks; n++) {
if (!mpctx->tracks[n]->attached_picture)
sc[mpctx->tracks[n]->type]++;
}
for (int i = 0; list && list[i].fname; i++) {
struct subfn *e = &list[i];
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *t = mpctx->tracks[n];
if (t->demuxer && strcmp(t->demuxer->filename, e->fname) == 0)
goto skip;
}
if (e->type == STREAM_SUB && !sc[STREAM_VIDEO] && !sc[STREAM_AUDIO])
goto skip;
if (e->type == STREAM_AUDIO && !sc[STREAM_VIDEO])
goto skip;
if (e->type == STREAM_VIDEO && (sc[STREAM_VIDEO] || !sc[STREAM_AUDIO]))
goto skip;
// when given filter is set to video, we are loading up cover art
int first = mp_add_external_file(mpctx, e->fname, e->type, cancel,
e->type == STREAM_VIDEO);
if (first < 0)
goto skip;
for (int n = first; n < mpctx->num_tracks; n++) {
struct track *t = mpctx->tracks[n];
t->auto_loaded = true;
if (!t->lang)
t->lang = talloc_strdup(t, e->lang);
}
skip:;
}
talloc_free(tmp);
}
// Do stuff to a newly loaded playlist. This includes any processing that may
// be required after loading a playlist.
void prepare_playlist(struct MPContext *mpctx, struct playlist *pl)
{
struct MPOpts *opts = mpctx->opts;
pl->current = NULL;
if (opts->playlist_pos >= 0)
pl->current = playlist_entry_from_index(pl, opts->playlist_pos);
if (opts->shuffle)
playlist_shuffle(pl);
if (opts->merge_files)
merge_playlist_files(pl);
if (!pl->current)
pl->current = mp_check_playlist_resume(mpctx, pl);
if (!pl->current)
pl->current = playlist_get_first(pl);
}
// Replace the current playlist entry with playlist contents. Moves the entries
// from the given playlist pl, so the entries don't actually need to be copied.
static void transfer_playlist(struct MPContext *mpctx, struct playlist *pl,
int64_t *start_id, int *num_new_entries)
{
if (pl->num_entries) {
prepare_playlist(mpctx, pl);
struct playlist_entry *new = pl->current;
*num_new_entries = pl->num_entries;
*start_id = playlist_transfer_entries(mpctx->playlist, pl);
// current entry is replaced
if (mpctx->playlist->current)
playlist_remove(mpctx->playlist, mpctx->playlist->current);
if (new)
mpctx->playlist->current = new;
} else {
MP_WARN(mpctx, "Empty playlist!\n");
}
}
static void process_hooks(struct MPContext *mpctx, char *name)
{
mp_hook_start(mpctx, name);
while (!mp_hook_test_completion(mpctx, name)) {
mp_idle(mpctx);
// We have no idea what blocks a hook, so just do a full abort. This
// does nothing for hooks that happen outside of playback.
if (mpctx->stop_play)
mp_abort_playback_async(mpctx);
}
}
// to be run on a worker thread, locked (temporarily unlocks core)
static void load_chapters(struct MPContext *mpctx)
{
struct demuxer *src = mpctx->demuxer;
bool free_src = false;
char *chapter_file = mpctx->opts->chapter_file;
if (chapter_file && chapter_file[0]) {
chapter_file = talloc_strdup(NULL, chapter_file);
mp_core_unlock(mpctx);
struct demuxer_params p = {.stream_flags = STREAM_ORIGIN_DIRECT};
struct demuxer *demux = demux_open_url(chapter_file, &p,
mpctx->playback_abort,
mpctx->global);
mp_core_lock(mpctx);
if (demux) {
src = demux;
free_src = true;
}
talloc_free(mpctx->chapters);
mpctx->chapters = NULL;
talloc_free(chapter_file);
}
if (src && !mpctx->chapters) {
talloc_free(mpctx->chapters);
mpctx->num_chapters = src->num_chapters;
mpctx->chapters = demux_copy_chapter_data(src->chapters, src->num_chapters);
if (mpctx->opts->rebase_start_time) {
for (int n = 0; n < mpctx->num_chapters; n++)
mpctx->chapters[n].pts -= src->start_time;
}
}
if (free_src)
demux_cancel_and_free(src);
}
static void load_per_file_options(m_config_t *conf,
struct playlist_param *params,
int params_count)
{
for (int n = 0; n < params_count; n++) {
m_config_set_option_cli(conf, params[n].name, params[n].value,
M_SETOPT_BACKUP);
}
}
static MP_THREAD_VOID open_demux_thread(void *ctx)
{
struct MPContext *mpctx = ctx;
mp_thread_set_name("opener");
struct demuxer_params p = {
.force_format = mpctx->open_format,
.stream_flags = mpctx->open_url_flags,
.stream_record = true,
.is_top_level = true,
};
struct demuxer *demux =
demux_open_url(mpctx->open_url, &p, mpctx->open_cancel, mpctx->global);
mpctx->open_res_demuxer = demux;
if (demux) {
MP_VERBOSE(mpctx, "Opening done: %s\n", mpctx->open_url);
if (mpctx->open_for_prefetch && !demux->fully_read) {
int num_streams = demux_get_num_stream(demux);
for (int n = 0; n < num_streams; n++) {
struct sh_stream *sh = demux_get_stream(demux, n);
demuxer_select_track(demux, sh, MP_NOPTS_VALUE, true);
}
demux_set_wakeup_cb(demux, wakeup_demux, mpctx);
demux_start_thread(demux);
demux_start_prefetch(demux);
}
} else {
MP_VERBOSE(mpctx, "Opening failed or was aborted: %s\n", mpctx->open_url);
if (p.demuxer_failed) {
mpctx->open_res_error = MPV_ERROR_UNKNOWN_FORMAT;
} else {
mpctx->open_res_error = MPV_ERROR_LOADING_FAILED;
}
}
atomic_store(&mpctx->open_done, true);
mp_wakeup_core(mpctx);
MP_THREAD_RETURN();
}
static void cancel_open(struct MPContext *mpctx)
{
if (mpctx->open_cancel)
mp_cancel_trigger(mpctx->open_cancel);
if (mpctx->open_active)
mp_thread_join(mpctx->open_thread);
mpctx->open_active = false;
if (mpctx->open_res_demuxer)
demux_cancel_and_free(mpctx->open_res_demuxer);
mpctx->open_res_demuxer = NULL;
TA_FREEP(&mpctx->open_cancel);
TA_FREEP(&mpctx->open_url);
TA_FREEP(&mpctx->open_format);
atomic_store(&mpctx->open_done, false);
}
// Setup all the field to open this url, and make sure a thread is running.
static void start_open(struct MPContext *mpctx, char *url, int url_flags,
bool for_prefetch)
{
cancel_open(mpctx);
assert(!mpctx->open_active);
assert(!mpctx->open_cancel);
assert(!mpctx->open_res_demuxer);
assert(!atomic_load(&mpctx->open_done));
mpctx->open_cancel = mp_cancel_new(NULL);
mpctx->open_url = talloc_strdup(NULL, url);
mpctx->open_format = talloc_strdup(NULL, mpctx->opts->demuxer_name);
mpctx->open_url_flags = url_flags;
mpctx->open_for_prefetch = for_prefetch && mpctx->opts->demuxer_thread;
if (mp_thread_create(&mpctx->open_thread, open_demux_thread, mpctx)) {
cancel_open(mpctx);
return;
}
mpctx->open_active = true;
}
static void open_demux_reentrant(struct MPContext *mpctx)
{
char *url = mpctx->stream_open_filename;
if (mpctx->open_active) {
bool done = atomic_load(&mpctx->open_done);
bool failed = done && !mpctx->open_res_demuxer;
bool correct_url = strcmp(mpctx->open_url, url) == 0;
if (correct_url && !failed) {
MP_VERBOSE(mpctx, "Using prefetched/prefetching URL.\n");
} else if (correct_url && failed) {
MP_VERBOSE(mpctx, "Prefetched URL failed, retrying.\n");
cancel_open(mpctx);
} else {
if (done) {
MP_VERBOSE(mpctx, "Dropping finished prefetch of wrong URL.\n");
} else {
MP_VERBOSE(mpctx, "Aborting ongoing prefetch of wrong URL.\n");
}
cancel_open(mpctx);
}
}
if (!mpctx->open_active)
start_open(mpctx, url, mpctx->playing->stream_flags, false);
// User abort should cancel the opener now.
mp_cancel_set_parent(mpctx->open_cancel, mpctx->playback_abort);
while (!atomic_load(&mpctx->open_done)) {
mp_idle(mpctx);
if (mpctx->stop_play)
mp_abort_playback_async(mpctx);
}
if (mpctx->open_res_demuxer) {
mpctx->demuxer = mpctx->open_res_demuxer;
mpctx->open_res_demuxer = NULL;
mp_cancel_set_parent(mpctx->demuxer->cancel, mpctx->playback_abort);
} else {
mpctx->error_playing = mpctx->open_res_error;
}
cancel_open(mpctx); // cleanup
}
void prefetch_next(struct MPContext *mpctx)
{
if (!mpctx->opts->prefetch_open)
return;
struct playlist_entry *new_entry = mp_next_file(mpctx, +1, false);
if (new_entry && !mpctx->open_active && new_entry->filename) {
MP_VERBOSE(mpctx, "Prefetching: %s\n", new_entry->filename);
start_open(mpctx, new_entry->filename, new_entry->stream_flags, true);
}
}
static void clear_playlist_paths(struct MPContext *mpctx)
{
TA_FREEP(&mpctx->playlist_paths);
mpctx->playlist_paths_len = 0;
}
static bool infinite_playlist_loading_loop(struct MPContext *mpctx, struct playlist *pl)
{
if (pl->num_entries) {
struct playlist_entry *e = pl->entries[0];
for (int n = 0; n < mpctx->playlist_paths_len; n++) {
if (strcmp(mpctx->playlist_paths[n], e->filename) == 0) {
clear_playlist_paths(mpctx);
return true;
}
}
}
MP_TARRAY_APPEND(mpctx, mpctx->playlist_paths, mpctx->playlist_paths_len,
talloc_strdup(mpctx->playlist_paths, mpctx->filename));
return false;
}
// Destroy the complex filter, and remove the references to the filter pads.
// (Call cleanup_deassociated_complex_filters() to close decoders/VO/AO
// that are not connected anymore due to this.)
static void deassociate_complex_filters(struct MPContext *mpctx)
{
for (int n = 0; n < mpctx->num_tracks; n++)
mpctx->tracks[n]->sink = NULL;
if (mpctx->vo_chain)
mpctx->vo_chain->filter_src = NULL;
if (mpctx->ao_chain)
mpctx->ao_chain->filter_src = NULL;
TA_FREEP(&mpctx->lavfi);
TA_FREEP(&mpctx->lavfi_graph);
}
// Close all decoders and sinks (AO/VO) that are not connected to either
// a track or a filter pad.
static void cleanup_deassociated_complex_filters(struct MPContext *mpctx)
{
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (!(track->sink || track->vo_c || track->ao_c)) {
if (track->dec && !track->vo_c && !track->ao_c) {
talloc_free(track->dec->f);
track->dec = NULL;
}
track->selected = false;
}
}
if (mpctx->vo_chain && !mpctx->vo_chain->dec_src &&
!mpctx->vo_chain->filter_src)
{
uninit_video_chain(mpctx);
}
if (mpctx->ao_chain && !mpctx->ao_chain->dec_src &&
!mpctx->ao_chain->filter_src)
{
uninit_audio_chain(mpctx);
}
}
static void kill_outputs(struct MPContext *mpctx, struct track *track)
{
if (track->vo_c || track->ao_c) {
MP_VERBOSE(mpctx, "deselecting track %d for lavfi-complex option\n",
track->user_tid);
mp_switch_track(mpctx, track->type, NULL, 0);
}
assert(!(track->vo_c || track->ao_c));
}
// >0: changed, 0: no change, -1: error
static int reinit_complex_filters(struct MPContext *mpctx, bool force_uninit)
{
char *graph = mpctx->opts->lavfi_complex;
bool have_graph = graph && graph[0] && !force_uninit;
if (have_graph && mpctx->lavfi &&
strcmp(graph, mpctx->lavfi_graph) == 0 &&
!mp_filter_has_failed(mpctx->lavfi))
return 0;
if (!mpctx->lavfi && !have_graph)
return 0;
// Deassociate the old filter pads. We leave both sources (tracks) and
// sinks (AO/VO) "dangling", connected to neither track or filter pad.
// Later, we either reassociate them with new pads, or uninit them if
// they are still dangling. This avoids too interruptive actions like
// recreating the VO.
deassociate_complex_filters(mpctx);
bool success = false;
if (!have_graph) {
success = true; // normal full removal of graph
goto done;
}
struct mp_lavfi *l =
mp_lavfi_create_graph(mpctx->filter_root, 0, false, NULL, NULL, graph);
if (!l)
goto done;
mpctx->lavfi = l->f;
mpctx->lavfi_graph = talloc_strdup(NULL, graph);
mp_filter_set_error_handler(mpctx->lavfi, mpctx->filter_root);
for (int n = 0; n < mpctx->lavfi->num_pins; n++)
mp_pin_disconnect(mpctx->lavfi->pins[n]);
struct mp_pin *pad = mp_filter_get_named_pin(mpctx->lavfi, "vo");
if (pad && mp_pin_get_dir(pad) == MP_PIN_OUT) {
if (mpctx->vo_chain && mpctx->vo_chain->track)
kill_outputs(mpctx, mpctx->vo_chain->track);
if (!mpctx->vo_chain) {
reinit_video_chain_src(mpctx, NULL);
if (!mpctx->vo_chain)
goto done;
}
struct vo_chain *vo_c = mpctx->vo_chain;
assert(!vo_c->track);
vo_c->filter_src = pad;
mp_pin_connect(vo_c->filter->f->pins[0], vo_c->filter_src);
}
pad = mp_filter_get_named_pin(mpctx->lavfi, "ao");
if (pad && mp_pin_get_dir(pad) == MP_PIN_OUT) {
if (mpctx->ao_chain && mpctx->ao_chain->track)
kill_outputs(mpctx, mpctx->ao_chain->track);
if (!mpctx->ao_chain) {
reinit_audio_chain_src(mpctx, NULL);
if (!mpctx->ao_chain)
goto done;
}
struct ao_chain *ao_c = mpctx->ao_chain;
assert(!ao_c->track);
ao_c->filter_src = pad;
mp_pin_connect(ao_c->filter->f->pins[0], ao_c->filter_src);
}
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
char label[32];
char prefix;
switch (track->type) {
case STREAM_VIDEO: prefix = 'v'; break;
case STREAM_AUDIO: prefix = 'a'; break;
default: continue;
}
snprintf(label, sizeof(label), "%cid%d", prefix, track->user_tid);
pad = mp_filter_get_named_pin(mpctx->lavfi, label);
if (!pad)
continue;
if (mp_pin_get_dir(pad) != MP_PIN_IN)
continue;
assert(!mp_pin_is_connected(pad));
assert(!track->sink);
kill_outputs(mpctx, track);
track->sink = pad;
track->selected = true;
if (!track->dec) {
if (track->type == STREAM_VIDEO && !init_video_decoder(mpctx, track))
goto done;
if (track->type == STREAM_AUDIO && !init_audio_decoder(mpctx, track))
goto done;
}
mp_pin_connect(track->sink, track->dec->f->pins[0]);
}
// Don't allow unconnected pins. Libavfilter would make the data flow a
// real pain anyway.
for (int n = 0; n < mpctx->lavfi->num_pins; n++) {
struct mp_pin *pin = mpctx->lavfi->pins[n];
if (!mp_pin_is_connected(pin)) {
MP_ERR(mpctx, "Pad %s is not connected to anything.\n",
mp_pin_get_name(pin));
goto done;
}
}
success = true;
done:
if (!success)
deassociate_complex_filters(mpctx);
cleanup_deassociated_complex_filters(mpctx);
if (mpctx->playback_initialized) {
for (int n = 0; n < mpctx->num_tracks; n++)
reselect_demux_stream(mpctx, mpctx->tracks[n], false);
}
mp_notify(mpctx, MP_EVENT_TRACKS_CHANGED, NULL);
return success ? 1 : -1;
}
void update_lavfi_complex(struct MPContext *mpctx)
{
if (mpctx->playback_initialized) {
if (reinit_complex_filters(mpctx, false) != 0)
issue_refresh_seek(mpctx, MPSEEK_EXACT);
}
}
// Worker thread for loading external files and such. This is needed to avoid
// freezing the core when waiting for network while loading these.
static void load_external_opts_thread(void *p)
{
void **a = p;
struct MPContext *mpctx = a[0];
struct mp_waiter *waiter = a[1];
mp_core_lock(mpctx);
load_chapters(mpctx);
open_external_files(mpctx, mpctx->opts->audio_files, STREAM_AUDIO);
open_external_files(mpctx, mpctx->opts->sub_name, STREAM_SUB);
open_external_files(mpctx, mpctx->opts->coverart_files, STREAM_VIDEO);
open_external_files(mpctx, mpctx->opts->external_files, STREAM_TYPE_COUNT);
autoload_external_files(mpctx, mpctx->playback_abort);
mp_waiter_wakeup(waiter, 0);
mp_wakeup_core(mpctx);
mp_core_unlock(mpctx);
}
static void load_external_opts(struct MPContext *mpctx)
{
struct mp_waiter wait = MP_WAITER_INITIALIZER;
void *a[] = {mpctx, &wait};
if (!mp_thread_pool_queue(mpctx->thread_pool, load_external_opts_thread, a)) {
mpctx->stop_play = PT_ERROR;
return;
}
while (!mp_waiter_poll(&wait)) {
mp_idle(mpctx);
if (mpctx->stop_play)
mp_abort_playback_async(mpctx);
}
mp_waiter_wait(&wait);
}
// Start playing the current playlist entry.
// Handle initialization and deinitialization.
static void play_current_file(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
assert(mpctx->stop_play);
mpctx->stop_play = 0;
process_hooks(mpctx, "on_before_start_file");
if (mpctx->stop_play || !mpctx->playlist->current)
return;
mpv_event_start_file start_event = {
.playlist_entry_id = mpctx->playlist->current->id,
};
mpv_event_end_file end_event = {
.playlist_entry_id = start_event.playlist_entry_id,
};
mp_notify(mpctx, MPV_EVENT_START_FILE, &start_event);
mp_cancel_reset(mpctx->playback_abort);
mpctx->error_playing = MPV_ERROR_LOADING_FAILED;
mpctx->filename = NULL;
mpctx->shown_aframes = 0;
mpctx->shown_vframes = 0;
mpctx->last_chapter_seek = -2;
mpctx->last_chapter_flag = false;
mpctx->last_chapter = -2;
mpctx->paused = false;
mpctx->playing_msg_shown = false;
mpctx->max_frames = -1;
mpctx->video_speed = mpctx->audio_speed = opts->playback_speed;
mpctx->speed_factor_a = mpctx->speed_factor_v = 1.0;
mpctx->display_sync_error = 0.0;
mpctx->display_sync_active = false;
// let get_current_time() show 0 as start time (before playback_pts is set)
mpctx->last_seek_pts = 0.0;
mpctx->seek = (struct seek_params){ 0 };
mpctx->filter_root = mp_filter_create_root(mpctx->global);
mp_filter_graph_set_wakeup_cb(mpctx->filter_root, mp_wakeup_core_cb, mpctx);
mp_filter_graph_set_max_run_time(mpctx->filter_root, 0.1);
reset_playback_state(mpctx);
mpctx->playing = mpctx->playlist->current;
assert(mpctx->playing);
assert(mpctx->playing->filename);
mpctx->playing->reserved += 1;
mpctx->filename = talloc_strdup(NULL, mpctx->playing->filename);
mpctx->stream_open_filename = mpctx->filename;
mpctx->add_osd_seek_info &= OSD_SEEK_INFO_CURRENT_FILE;
if (opts->reset_options) {
for (int n = 0; opts->reset_options[n]; n++) {
const char *opt = opts->reset_options[n];
if (opt[0]) {
if (strcmp(opt, "all") == 0) {
m_config_backup_all_opts(mpctx->mconfig);
} else {
m_config_backup_opt(mpctx->mconfig, opt);
}
}
}
}
mp_load_auto_profiles(mpctx);
bool watch_later = mp_load_playback_resume(mpctx, mpctx->filename);
load_per_file_options(mpctx->mconfig, mpctx->playing->params,
mpctx->playing->num_params);
mpctx->max_frames = opts->play_frames;
handle_force_window(mpctx, false);
if (mpctx->playlist->num_entries > 1 ||
mpctx->playing->playlist_path)
MP_INFO(mpctx, "Playing: %s\n", mpctx->filename);
assert(mpctx->demuxer == NULL);
process_hooks(mpctx, "on_load");
if (mpctx->stop_play)
goto terminate_playback;
if (opts->stream_dump && opts->stream_dump[0]) {
if (stream_dump(mpctx, mpctx->stream_open_filename) >= 0)
mpctx->error_playing = 1;
goto terminate_playback;
}
open_demux_reentrant(mpctx);
if (!mpctx->stop_play && !mpctx->demuxer) {
process_hooks(mpctx, "on_load_fail");
if (strcmp(mpctx->stream_open_filename, mpctx->filename) != 0 &&
!mpctx->stop_play)
{
mpctx->error_playing = MPV_ERROR_LOADING_FAILED;
open_demux_reentrant(mpctx);
}
}
if (!mpctx->demuxer || mpctx->stop_play)
goto terminate_playback;
if (mpctx->demuxer->playlist) {
if (watch_later)
mp_delete_watch_later_conf(mpctx, mpctx->filename);
struct playlist *pl = mpctx->demuxer->playlist;
playlist_populate_playlist_path(pl, mpctx->filename);
if (infinite_playlist_loading_loop(mpctx, pl)) {
mpctx->stop_play = PT_STOP;
MP_ERR(mpctx, "Infinite playlist loading loop detected.\n");
goto terminate_playback;
}
transfer_playlist(mpctx, pl, &end_event.playlist_insert_id,
&end_event.playlist_insert_num_entries);
mp_notify_property(mpctx, "playlist");
mpctx->error_playing = 2;
goto terminate_playback;
}
if (mpctx->opts->rebase_start_time)
demux_set_ts_offset(mpctx->demuxer, -mpctx->demuxer->start_time);
enable_demux_thread(mpctx, mpctx->demuxer);
add_demuxer_tracks(mpctx, mpctx->demuxer);
load_external_opts(mpctx);
if (mpctx->stop_play)
goto terminate_playback;
check_previous_track_selection(mpctx);
process_hooks(mpctx, "on_preloaded");
if (mpctx->stop_play)
goto terminate_playback;
if (reinit_complex_filters(mpctx, false) < 0)
goto terminate_playback;
for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
for (int i = 0; i < num_ptracks[t]; i++) {
struct track *sel = NULL;
bool taken = (t == STREAM_VIDEO && mpctx->vo_chain) ||
(t == STREAM_AUDIO && mpctx->ao_chain);
if (!taken && opts->stream_auto_sel)
sel = select_default_track(mpctx, i, t);
mpctx->current_track[i][t] = sel;
}
}
for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
for (int i = 0; i < num_ptracks[t]; i++) {
// One track can strictly feed at most 1 decoder
struct track *track = mpctx->current_track[i][t];
if (track) {
if (track->type != STREAM_SUB &&
mpctx->encode_lavc_ctx &&
!encode_lavc_stream_type_ok(mpctx->encode_lavc_ctx,
track->type))
{
MP_WARN(mpctx, "Disabling %s (not supported by target "
"format).\n", stream_type_name(track->type));
mpctx->current_track[i][t] = NULL;
mark_track_selection(mpctx, i, t, -2); // disable
} else if (track->selected) {
MP_ERR(mpctx, "Track %d can't be selected twice.\n",
track->user_tid);
mpctx->current_track[i][t] = NULL;
mark_track_selection(mpctx, i, t, -2); // disable
} else {
track->selected = true;
}
}
// Revert selection of unselected tracks to default. This is needed
// because track properties have inconsistent behavior.
if (!track && opts->stream_id[i][t] >= 0)
mark_track_selection(mpctx, i, t, -1); // default
}
}
for (int n = 0; n < mpctx->num_tracks; n++)
reselect_demux_stream(mpctx, mpctx->tracks[n], false);
update_demuxer_properties(mpctx);
update_playback_speed(mpctx);
reinit_video_chain(mpctx);
reinit_audio_chain(mpctx);
reinit_sub_all(mpctx);
if (mpctx->encode_lavc_ctx) {
if (mpctx->vo_chain)
encode_lavc_expect_stream(mpctx->encode_lavc_ctx, STREAM_VIDEO);
if (mpctx->ao_chain)
encode_lavc_expect_stream(mpctx->encode_lavc_ctx, STREAM_AUDIO);
encode_lavc_set_metadata(mpctx->encode_lavc_ctx,
mpctx->demuxer->metadata);
}
if (!mpctx->vo_chain && !mpctx->ao_chain && opts->stream_auto_sel) {
MP_FATAL(mpctx, "No video or audio streams selected.\n");
mpctx->error_playing = MPV_ERROR_NOTHING_TO_PLAY;
goto terminate_playback;
}
if (mpctx->vo_chain && mpctx->vo_chain->is_coverart) {
MP_INFO(mpctx,
"Displaying cover art. Use --no-audio-display to prevent this.\n");
}
if (!mpctx->vo_chain)
handle_force_window(mpctx, true);
MP_VERBOSE(mpctx, "Starting playback...\n");
mpctx->playback_initialized = true;
mpctx->playing->playlist_prev_attempt = false;
mp_notify(mpctx, MPV_EVENT_FILE_LOADED, NULL);
update_screensaver_state(mpctx);
clear_playlist_paths(mpctx);
if (watch_later)
mp_delete_watch_later_conf(mpctx, mpctx->filename);
if (mpctx->max_frames == 0) {
if (!mpctx->stop_play)
mpctx->stop_play = PT_NEXT_ENTRY;
mpctx->error_playing = 0;
goto terminate_playback;
}
if (opts->demuxer_cache_wait) {
demux_start_prefetch(mpctx->demuxer);
while (!mpctx->stop_play) {
struct demux_reader_state s;
demux_get_reader_state(mpctx->demuxer, &s);
if (s.idle)
break;
mp_idle(mpctx);
}
}
// (Not get_play_start_pts(), which would always trigger a seek.)
double play_start_pts = rel_time_to_abs(mpctx, opts->play_start);
// Backward playback -> start from end by default.
if (play_start_pts == MP_NOPTS_VALUE && opts->play_dir < 0)
play_start_pts = get_start_time(mpctx, -1);
if (play_start_pts != MP_NOPTS_VALUE) {
queue_seek(mpctx, MPSEEK_ABSOLUTE, play_start_pts, MPSEEK_DEFAULT, 0);
execute_queued_seek(mpctx);
}
update_internal_pause_state(mpctx);
mpctx->error_playing = 0;
mpctx->in_playloop = true;
while (!mpctx->stop_play)
run_playloop(mpctx);
mpctx->in_playloop = false;
MP_VERBOSE(mpctx, "EOF code: %d \n", mpctx->stop_play);
terminate_playback:
if (!mpctx->stop_play)
mpctx->stop_play = PT_ERROR;
if (mpctx->stop_play != AT_END_OF_FILE)
clear_audio_output_buffers(mpctx);
update_core_idle_state(mpctx);
if (mpctx->step_frames) {
opts->pause = true;
m_config_notify_change_opt_ptr(mpctx->mconfig, &opts->pause);
}
process_hooks(mpctx, "on_unload");
// time to uninit all, except global stuff:
reinit_complex_filters(mpctx, true);
uninit_audio_chain(mpctx);
uninit_video_chain(mpctx);
uninit_sub_all(mpctx);
if (!opts->gapless_audio && !mpctx->encode_lavc_ctx)
uninit_audio_out(mpctx);
mpctx->playback_initialized = false;
uninit_demuxer(mpctx);
// Possibly stop ongoing async commands.
mp_abort_playback_async(mpctx);
m_config_restore_backups(mpctx->mconfig);
TA_FREEP(&mpctx->filter_root);
talloc_free(mpctx->filtered_tags);
mpctx->filtered_tags = NULL;
mp_notify(mpctx, MP_EVENT_TRACKS_CHANGED, NULL);
if (encode_lavc_didfail(mpctx->encode_lavc_ctx))
mpctx->stop_play = PT_ERROR;
if (mpctx->stop_play == PT_ERROR && !mpctx->error_playing)
mpctx->error_playing = MPV_ERROR_GENERIC;
bool nothing_played = !mpctx->shown_aframes && !mpctx->shown_vframes &&
mpctx->error_playing <= 0;
bool playlist_prev_continue = false;
switch (mpctx->stop_play) {
case PT_ERROR:
case AT_END_OF_FILE:
{
if (mpctx->error_playing == 0 && nothing_played)
mpctx->error_playing = MPV_ERROR_NOTHING_TO_PLAY;
if (mpctx->error_playing < 0) {
end_event.error = mpctx->error_playing;
end_event.reason = MPV_END_FILE_REASON_ERROR;
} else if (mpctx->error_playing == 2) {
end_event.reason = MPV_END_FILE_REASON_REDIRECT;
} else {
end_event.reason = MPV_END_FILE_REASON_EOF;
}
if (mpctx->playing) {
mpctx->playing->init_failed = nothing_played;
playlist_prev_continue = mpctx->playing->playlist_prev_attempt &&
nothing_played;
mpctx->playing->playlist_prev_attempt = false;
}
break;
}
// Note that error_playing is meaningless in these cases.
case PT_NEXT_ENTRY:
case PT_CURRENT_ENTRY:
case PT_STOP: end_event.reason = MPV_END_FILE_REASON_STOP; break;
case PT_QUIT: end_event.reason = MPV_END_FILE_REASON_QUIT; break;
};
mp_notify(mpctx, MPV_EVENT_END_FILE, &end_event);
MP_VERBOSE(mpctx, "finished playback, %s (reason %d)\n",
mpv_error_string(end_event.error), end_event.reason);
if (end_event.error == MPV_ERROR_UNKNOWN_FORMAT)
MP_ERR(mpctx, "Failed to recognize file format.\n");
if (mpctx->playing)
playlist_entry_unref(mpctx->playing);
mpctx->playing = NULL;
talloc_free(mpctx->filename);
mpctx->filename = NULL;
mpctx->stream_open_filename = NULL;
if (end_event.error < 0 && nothing_played) {
mpctx->files_broken++;
} else if (end_event.error < 0) {
mpctx->files_errored++;
} else {
mpctx->files_played++;
}
assert(mpctx->stop_play);
process_hooks(mpctx, "on_after_end_file");
if (playlist_prev_continue) {
struct playlist_entry *e = mp_next_file(mpctx, -1, false);
if (e) {
mp_set_playlist_entry(mpctx, e);
play_current_file(mpctx);
}
}
}
// Determine the next file to play. Note that if this function returns non-NULL,
// it can have side-effects and mutate mpctx.
// direction: -1 (previous) or +1 (next)
// force: if true, don't skip playlist entries marked as failed
struct playlist_entry *mp_next_file(struct MPContext *mpctx, int direction,
bool force)
{
struct playlist_entry *next = playlist_get_next(mpctx->playlist, direction);
if (next && direction < 0 && !force)
next->playlist_prev_attempt = true;
if (!next && mpctx->opts->loop_times != 1) {
if (direction > 0) {
if (mpctx->opts->shuffle)
playlist_shuffle(mpctx->playlist);
next = playlist_get_first(mpctx->playlist);
if (next && mpctx->opts->loop_times > 1) {
mpctx->opts->loop_times--;
m_config_notify_change_opt_ptr(mpctx->mconfig,
&mpctx->opts->loop_times);
}
} else {
next = playlist_get_last(mpctx->playlist);
}
bool ignore_failures = mpctx->opts->loop_times == -2;
if (!force && next && next->init_failed && !ignore_failures) {
// Don't endless loop if no file in playlist is playable
bool all_failed = true;
for (int n = 0; n < mpctx->playlist->num_entries; n++) {
all_failed &= mpctx->playlist->entries[n]->init_failed;
if (!all_failed)
break;
}
if (all_failed)
next = NULL;
}
}
return next;
}
// Play all entries on the playlist, starting from the current entry.
// Return if all done.
void mp_play_files(struct MPContext *mpctx)
{
stats_register_thread_cputime(mpctx->stats, "thread");
// Wait for all scripts to load before possibly starting playback.
if (!mp_clients_all_initialized(mpctx)) {
MP_VERBOSE(mpctx, "Waiting for scripts...\n");
while (!mp_clients_all_initialized(mpctx))
mp_idle(mpctx);
mp_wakeup_core(mpctx); // avoid lost wakeups during waiting
MP_VERBOSE(mpctx, "Done loading scripts.\n");
}
// After above is finished; but even if it's skipped.
mp_msg_set_early_logging(mpctx->global, false);
prepare_playlist(mpctx, mpctx->playlist);
for (;;) {
idle_loop(mpctx);
if (mpctx->stop_play == PT_QUIT)
break;
if (mpctx->playlist->current)
play_current_file(mpctx);
if (mpctx->stop_play == PT_QUIT)
break;
struct playlist_entry *new_entry = NULL;
if (mpctx->stop_play == PT_NEXT_ENTRY || mpctx->stop_play == PT_ERROR ||
mpctx->stop_play == AT_END_OF_FILE)
{
new_entry = mp_next_file(mpctx, +1, false);
} else if (mpctx->stop_play == PT_CURRENT_ENTRY) {
new_entry = mpctx->playlist->current;
}
mpctx->playlist->current = new_entry;
mpctx->playlist->current_was_replaced = false;
mpctx->stop_play = new_entry ? PT_NEXT_ENTRY : PT_STOP;
if (!mpctx->playlist->current && mpctx->opts->player_idle_mode < 2)
break;
}
cancel_open(mpctx);
if (mpctx->encode_lavc_ctx) {
// Make sure all streams get finished.
uninit_audio_out(mpctx);
uninit_video_out(mpctx);
if (!encode_lavc_free(mpctx->encode_lavc_ctx))
mpctx->files_errored += 1;
mpctx->encode_lavc_ctx = NULL;
}
}
// Abort current playback and set the given entry to play next.
// e must be on the mpctx->playlist.
void mp_set_playlist_entry(struct MPContext *mpctx, struct playlist_entry *e)
{
assert(!e || playlist_entry_to_index(mpctx->playlist, e) >= 0);
mpctx->playlist->current = e;
mpctx->playlist->current_was_replaced = false;
mp_notify(mpctx, MP_EVENT_CHANGE_PLAYLIST, NULL);
// Make it pick up the new entry.
if (mpctx->stop_play != PT_QUIT)
mpctx->stop_play = e ? PT_CURRENT_ENTRY : PT_STOP;
mp_wakeup_core(mpctx);
}
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