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mpv/player/loadfile.c

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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <stdbool.h>
#include <inttypes.h>
#include <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 BLACK_CIRCLE "\xe2\x97\x8f"
#define WHITE_CIRCLE "\xe2\x97\x8b"
#define APPEND(s, ...) mp_snprintf_cat(s, sizeof(s), __VA_ARGS__)
#define FILL(s, n) mp_snprintf_cat(s, sizeof(s), "%*s", n, "")
#define ADD_FLAG(b, flag, first) do { \
APPEND(b, " %s%s", first ? "[" : "", flag); \
first = false; \
} while(0)
static void print_stream(struct MPContext *mpctx, struct track *t, bool indent)
{
struct sh_stream *s = t->stream;
const char *tname = "?";
const char *selopt = "?";
const char *langopt = "?";
switch (t->type) {
case STREAM_VIDEO:
tname = t->image ? "Image" : "Video"; selopt = "vid"; langopt = "vlang";
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};
int max_lang_length = 0;
for (int n = 0; n < mpctx->num_tracks; n++) {
if (mpctx->tracks[n]->lang)
max_lang_length = MPMAX(strlen(mpctx->tracks[n]->lang), max_lang_length);
}
if (indent)
APPEND(b, " ");
APPEND(b, "%s %-5s --%s=%-2d", t->selected ? BLACK_CIRCLE : WHITE_CIRCLE,
tname, selopt, t->user_tid);
if (t->lang) {
APPEND(b, " --%s=%-*s ", langopt, max_lang_length, t->lang);
} else if (max_lang_length) {
FILL(b, (int) strlen(" --alang= ") + max_lang_length);
}
if (t->title)
APPEND(b, " '%s'", t->title);
const char *codec = s ? s->codec->codec : NULL;
APPEND(b, " (%s", codec ? codec : "<unknown>");
if (s && s->codec->codec_profile)
APPEND(b, " [%s]", s->codec->codec_profile);
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 && !t->image) {
char *fps = mp_format_double(NULL, s->codec->fps, 4, false, false, true);
APPEND(b, " %s fps", fps);
talloc_free(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, " %d Hz", s->codec->samplerate);
}
if (s && s->codec->bitrate) {
APPEND(b, " %d kbps", (s->codec->bitrate + 500) / 1000);
} else if (s && s->hls_bitrate) {
APPEND(b, " %d kbps", (s->hls_bitrate + 500) / 1000);
}
APPEND(b, ")");
bool first = true;
if (t->default_track)
ADD_FLAG(b, "default", first);
if (t->forced_track)
ADD_FLAG(b, "forced", first);
if (t->dependent_track)
ADD_FLAG(b, "dependent", first);
if (t->visual_impaired_track)
ADD_FLAG(b, "visual-impaired", first);
if (t->hearing_impaired_track)
ADD_FLAG(b, "hearing-impaired", first);
if (t->is_external)
ADD_FLAG(b, "external", first);
if (!first)
APPEND(b, "]");
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)
// Indent tracks after messages like "Tracks switched" and
// "Playing:".
print_stream(mpctx, mpctx->tracks[n], msg ||
mpctx->playlist->num_entries > 1 ||
mpctx->playing->playlist_path);
}
}
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};
if (mpctx->playlist->num_entries > 1 || mpctx->playing->playlist_path)
APPEND(b, " ");
APPEND(b, "%s --edition=%d", n == demuxer->edition ?
BLACK_CIRCLE : WHITE_CIRCLE, n);
char *name = mp_tags_get_str(edition->metadata, "title");
if (name)
APPEND(b, " '%s'", name);
if (edition->default_edition)
APPEND(b, " [default]");
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));
}
/* 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 = mp_match_lang(langs, t1->lang), l2 = mp_match_lang(langs, t2->lang);
if (!os_langs && l1 != l2)
return l1 > l2;
if (forced)
return t1->forced_track;
if (t1->default_track != t2->default_track && !t2->forced_select)
return t1->default_track;
if (sub && !t2->forced_select && t2->forced_track)
return !t1->forced_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;
}
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 = mpctx->current_track[0][STREAM_AUDIO] ?
mpctx->current_track[0][STREAM_AUDIO]->lang :
NULL;
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 = audio_lang && track->lang && !strcasecmp(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 && mp_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 = (!mp_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;
pick->forced_select = forced;
}
} 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,
.allow_playlist_create = false,
};
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;
pl->playlist_completed = false;
pl->playlist_started = false;
if (opts->playlist_pos >= 0)
pl->current = playlist_entry_from_index(pl, opts->playlist_pos);
if (pl->playlist_dir)
playlist_set_current(pl);
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;
mpctx->playlist->playlist_dir = talloc_steal(mpctx->playlist, pl->playlist_dir);
} 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,
.allow_playlist_create = mpctx->playlist->num_entries <= 1 &&
!mpctx->playlist->playlist_dir,
};
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;
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
// Don't allow to open local paths or stdin during fuzzing
bstr open_url = bstr0(mpctx->open_url);
if (bstr_startswith0(open_url, "/") ||
bstr_startswith0(open_url, ".") ||
bstr_equals0(open_url, "-"))
{
cancel_open(mpctx);
return;
}
#endif
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);
// If thread failed to start, cancel the playback
if (!mpctx->open_active)
goto cancel;
// 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:
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->remaining_file_loops = mpctx->opts->loop_file;
mp_notify_property(mpctx, "remaining-file-loops");
mpctx->remaining_ab_loops = mpctx->opts->ab_loop_count;
mp_notify_property(mpctx, "remaining-ab-loops");
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;
struct playlist *pl = mpctx->demuxer->playlist;
if (pl) {
// pl->playlist_dir indicates that the playlist was auto-created from
// the parent file. In this case, mpctx->filename points to real file.
if (watch_later && !pl->playlist_dir)
mp_delete_watch_later_conf(mpctx, mpctx->filename);
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 t = 0; t < STREAM_TYPE_COUNT; t++)
for (int n = 0; n < mpctx->num_tracks; n++)
if (mpctx->tracks[n]->type == t)
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;
mpctx->playlist->playlist_completed = false;
mpctx->playlist->playlist_started = true;
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;
}
if (!new_entry)
mpctx->playlist->playlist_completed = true;
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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