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07fa5c8a8f
mpv/player/loadfile.c
wm4 1f593beeb4 audio: introduce a new type to hold audio frames 
This is pretty pointless, but I believe it allows us to claim that the
new code is not affected by the copyright of the old code. This is
needed, because the original mp_audio struct was written by someone who
has disagreed with LGPL relicensing (it was called af_data at the time,
and was defined in af.h).

The "GPL'ed" struct contents that surive are pretty trivial: just the
data pointer, and some metadata like the format, samplerate, etc. - but
at least in this case, any new code would be extremely similar anyway,
and I'm not really sure whether it's OK to claim different copyright. So
what we do is we just use AVFrame (which of course is LGPL with 100%
certainty), and add some accessors around it to adapt it to mpv
conventions.

Also, this gets rid of some annoying conventions of mp_audio, like the
struct fields that require using an accessor to write to them anyway.

For the most part, this change is only dumb replacements of mp_audio
related functions and fields. One minor actual change is that you can't
allocate the new type on the stack anymore.

Some code still uses mp_audio. All audio filter code will be deleted, so
it makes no sense to convert this code. (Audio filters which are LGPL
and which we keep will have to be ported to a new filter infrastructure
anyway.) player/audio.c uses it because it interacts with the old filter
code. push.c has some complex use of mp_audio and mp_audio_buffer, but
this and pull.c will most likely be rewritten to do something else.
2017-08-16 21:10:54 +02:00

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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 "config.h"
#include "mpv_talloc.h"
#include "osdep/io.h"
#include "osdep/terminal.h"
#include "osdep/timer.h"
#include "common/msg.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/recorder.h"
#include "input/input.h"
#include "audio/decode/dec_audio.h"
#include "audio/out/ao.h"
#include "demux/demux.h"
#include "stream/stream.h"
#include "sub/dec_sub.h"
#include "external_files.h"
#include "video/decode/dec_video.h"
#include "video/out/vo.h"
#include "core.h"
#include "command.h"
#include "libmpv/client.h"
// 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);
pthread_mutex_lock(&mpctx->lock);
if (mpctx->demuxer_cancel)
mp_cancel_trigger(mpctx->demuxer_cancel);
pthread_mutex_unlock(&mpctx->lock);
}
static void uninit_demuxer(struct MPContext *mpctx)
{
for (int r = 0; r < NUM_PTRACKS; r++) {
for (int t = 0; t < STREAM_TYPE_COUNT; t++)
mpctx->current_track[r][t] = NULL;
}
talloc_free(mpctx->chapters);
mpctx->chapters = NULL;
mpctx->num_chapters = 0;
// close demuxers for external tracks
for (int n = mpctx->num_tracks - 1; n >= 0; n--) {
mpctx->tracks[n]->selected = false;
mp_remove_track(mpctx, mpctx->tracks[n]);
}
for (int i = 0; i < mpctx->num_tracks; i++) {
sub_destroy(mpctx->tracks[i]->d_sub);
talloc_free(mpctx->tracks[i]);
}
mpctx->num_tracks = 0;
free_demuxer_and_stream(mpctx->demuxer);
mpctx->demuxer = NULL;
pthread_mutex_lock(&mpctx->lock);
talloc_free(mpctx->demuxer_cancel);
mpctx->demuxer_cancel = NULL;
pthread_mutex_unlock(&mpctx->lock);
}
#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};
APPEND(b, " %3s %-5s", t->selected ? "(+)" : "", 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 (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 (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);
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, MPV_EVENT_METADATA_UPDATE, NULL);
}
demuxer->events = 0;
}
// Enables or disables the stream for the given track, according to
// track->selected.
void reselect_demux_stream(struct MPContext *mpctx, struct track *track)
{
if (!track->stream)
return;
double pts = get_current_time(mpctx);
if (pts != MP_NOPTS_VALUE)
pts += get_track_seek_offset(mpctx, track);
demuxer_select_track(track->demuxer, track->stream, pts, track->selected);
}
// Called from the demuxer thread if a new packet is available.
static void wakeup_demux(void *pctx)
{
struct MPContext *mpctx = pctx;
mp_wakeup_core(mpctx);
}
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,
.title = stream->title,
.default_track = stream->default_track,
.forced_track = stream->forced_track,
.attached_picture = stream->attached_picture != NULL,
.lang = stream->lang,
.demuxer = demuxer,
.stream = stream,
};
MP_TARRAY_APPEND(mpctx, mpctx->tracks, mpctx->num_tracks, track);
demuxer_select_track(track->demuxer, stream, MP_NOPTS_VALUE, false);
mp_notify(mpctx, MPV_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, char *lang)
{
for (int idx = 0; langs && langs[idx]; idx++) {
if (lang && strcmp(langs[idx], lang) == 0)
return INT_MAX - idx;
}
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 ff-index (always wins)
* 0b) track matches tid (almost always wins)
* 1) track is external (no_default cancels this)
* 1b) track was passed explicitly (is not an auto-loaded subtitle)
* 2) earlier match in lang list
* 3a) track is marked forced
* 3b) track is marked default
* 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).
*/
// Return whether t1 is preferred over t2
static bool compare_track(struct track *t1, struct track *t2, char **langs,
struct MPOpts *opts)
{
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)
return ext1;
if (t1->auto_loaded != t2->auto_loaded)
return !t1->auto_loaded;
int l1 = match_lang(langs, t1->lang), l2 = match_lang(langs, t2->lang);
if (l1 != l2)
return l1 > l2;
if (t1->forced_track != t2->forced_track)
return t1->forced_track;
if (t1->default_track != t2->default_track)
return t1->default_track;
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;
}
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 ffid = order == 0 ? opts->stream_id_ff[type] : -1;
char **langs = order == 0 ? opts->stream_lang[type] : NULL;
if (ffid != -1)
tid = -1; // prefer selecting ffid
if (tid == -2 || ffid == -2)
return NULL;
bool select_fallback = type == STREAM_VIDEO || type == STREAM_AUDIO;
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)
return track;
if (track->ff_index == ffid)
return track;
if (!pick || compare_track(track, pick, langs, mpctx->opts))
pick = track;
}
if (pick && !select_fallback && !(pick->is_external && !pick->no_default)
&& !match_lang(langs, pick->lang) && !pick->default_track
&& !pick->forced_track)
pick = NULL;
if (pick && pick->attached_picture && !mpctx->opts->audio_display)
pick = NULL;
if (pick && !opts->autoload_files && pick->is_external)
pick = NULL;
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; i++) {
if (opts->stream_id[i][t] >= 0)
opts->stream_id[i][t] = i == 0 ? -1 : -2;
}
}
talloc_free(mpctx->track_layout_hash);
mpctx->track_layout_hash = NULL;
}
talloc_free(h);
}
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(order >= 0 && order < NUM_PTRACKS);
// 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)
mpctx->opts->stream_id[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");
return;
}
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");
return;
}
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);
return;
}
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);
uninit_audio_out(mpctx);
}
}
if (type == STREAM_SUB)
uninit_sub(mpctx, current);
if (current) {
if (current->remux_sink)
close_recorder_and_error(mpctx);
current->selected = false;
reselect_demux_stream(mpctx, current);
}
mpctx->current_track[order][type] = track;
if (track) {
track->selected = true;
reselect_demux_stream(mpctx, track);
}
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, MPV_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));
}
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; t++)
mp_switch_track_n(mpctx, t, track->type, NULL, 0);
}
}
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;
sub_destroy(track->d_sub);
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)
free_demuxer_and_stream(d);
mp_notify(mpctx, MPV_EVENT_TRACKS_CHANGED, NULL);
return true;
}
// Add the given file as additional track. Only tracks of type "filter" are
// included; pass STREAM_TYPE_COUNT to disable filtering.
struct track *mp_add_external_file(struct MPContext *mpctx, char *filename,
enum stream_type filter)
{
struct MPOpts *opts = mpctx->opts;
if (!filename)
return NULL;
char *disp_filename = filename;
if (strncmp(disp_filename, "memory://", 9) == 0)
disp_filename = "memory://"; // avoid noise
struct demuxer_params params = {0};
switch (filter) {
case STREAM_SUB:
params.force_format = opts->sub_demuxer_name;
break;
case STREAM_AUDIO:
params.force_format = opts->audio_demuxer_name;
break;
}
struct demuxer *demuxer =
demux_open_url(filename, &params, mpctx->playback_abort, mpctx->global);
if (!demuxer)
goto err_out;
enable_demux_thread(mpctx, demuxer);
if (filter != STREAM_SUB && opts->rebase_start_time)
demux_set_ts_offset(demuxer, -demuxer->start_time);
struct track *first = NULL;
for (int n = 0; n < demux_get_num_stream(demuxer); n++) {
struct sh_stream *sh = demux_get_stream(demuxer, n);
if (filter == STREAM_TYPE_COUNT || sh->type == filter) {
struct track *t = add_stream_track(mpctx, demuxer, sh);
t->is_external = true;
t->title = talloc_strdup(t, mp_basename(disp_filename));
t->external_filename = talloc_strdup(t, filename);
first = t;
// --external-file special semantics
t->no_default = filter == STREAM_TYPE_COUNT;
}
}
if (!first) {
free_demuxer_and_stream(demuxer);
MP_WARN(mpctx, "No streams added from file %s.\n", disp_filename);
goto err_out;
}
return first;
err_out:
MP_ERR(mpctx, "Can not open external file %s.\n", disp_filename);
return false;
}
static void open_external_files(struct MPContext *mpctx, char **files,
enum stream_type filter)
{
for (int n = 0; files && files[n]; n++)
mp_add_external_file(mpctx, files[n], filter);
}
void autoload_external_files(struct MPContext *mpctx)
{
if (mpctx->opts->sub_auto < 0 && mpctx->opts->audiofile_auto < 0)
return;
if (!mpctx->opts->autoload_files)
return;
void *tmp = talloc_new(NULL);
char *base_filename = mpctx->filename;
char *stream_filename = NULL;
if (mpctx->demuxer) {
if (demux_stream_control(mpctx->demuxer, STREAM_CTRL_GET_BASE_FILENAME,
&stream_filename) > 0)
base_filename = talloc_steal(tmp, stream_filename);
}
struct subfn *list = find_external_files(mpctx->global, base_filename);
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++) {
char *filename = list[i].fname;
char *lang = list[i].lang;
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *t = mpctx->tracks[n];
if (t->demuxer && strcmp(t->demuxer->filename, filename) == 0)
goto skip;
}
if (list[i].type == STREAM_SUB && !sc[STREAM_VIDEO] && !sc[STREAM_AUDIO])
goto skip;
if (list[i].type == STREAM_AUDIO && !sc[STREAM_VIDEO])
goto skip;
struct track *track = mp_add_external_file(mpctx, filename, list[i].type);
if (track) {
track->auto_loaded = true;
if (!track->lang)
track->lang = talloc_strdup(track, 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 = pl->first;
}
// 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)
{
if (pl->first) {
prepare_playlist(mpctx, pl);
struct playlist_entry *new = pl->current;
if (mpctx->playlist->current)
playlist_add_redirect(pl, mpctx->playlist->current->filename);
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 int process_open_hooks(struct MPContext *mpctx)
{
mp_hook_run(mpctx, NULL, "on_load");
while (!mp_hook_test_completion(mpctx, "on_load")) {
mp_idle(mpctx);
if (mpctx->stop_play) {
// Can't exit immediately, the script would interfere with the
// next file being loaded.
if (mpctx->stop_play == PT_QUIT)
return -1;
}
}
return 0;
}
static int process_preloaded_hooks(struct MPContext *mpctx)
{
mp_hook_run(mpctx, NULL, "on_preloaded");
while (!mp_hook_test_completion(mpctx, "on_preloaded")) {
mp_idle(mpctx);
if (mpctx->stop_play)
return -1;
}
return 0;
}
static void process_unload_hooks(struct MPContext *mpctx)
{
mp_hook_run(mpctx, NULL, "on_unload");
while (!mp_hook_test_completion(mpctx, "on_unload"))
mp_idle(mpctx);
}
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]) {
struct demuxer *demux = demux_open_url(chapter_file, NULL,
mpctx->playback_abort, mpctx->global);
if (demux) {
src = demux;
free_src = true;
}
talloc_free(mpctx->chapters);
mpctx->chapters = NULL;
}
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)
free_demuxer_and_stream(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_RUNTIME | M_SETOPT_BACKUP);
}
}
static void *open_demux_thread(void *ctx)
{
struct MPContext *mpctx = ctx;
struct demuxer_params p = {
.force_format = mpctx->open_format,
.stream_flags = mpctx->open_url_flags,
.initial_readahead = true,
};
mpctx->open_res_demuxer =
demux_open_url(mpctx->open_url, &p, mpctx->open_cancel, mpctx->global);
if (mpctx->open_res_demuxer) {
MP_VERBOSE(mpctx, "Opening done: %s\n", mpctx->open_url);
} 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);
return NULL;
}
static void cancel_open(struct MPContext *mpctx)
{
if (mpctx->open_cancel)
mp_cancel_trigger(mpctx->open_cancel);
if (mpctx->open_active)
pthread_join(mpctx->open_thread, NULL);
mpctx->open_active = false;
TA_FREEP(&mpctx->open_cancel);
TA_FREEP(&mpctx->open_url);
TA_FREEP(&mpctx->open_format);
if (mpctx->open_res_demuxer)
free_demuxer_and_stream(mpctx->open_res_demuxer);
mpctx->open_res_demuxer = NULL;
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)
{
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;
if (mpctx->opts->load_unsafe_playlists)
mpctx->open_url_flags = 0;
if (pthread_create(&mpctx->open_thread, NULL, 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 onging prefetch of wrong URL.\n");
}
cancel_open(mpctx);
}
}
if (!mpctx->open_active)
start_open(mpctx, url, mpctx->playing->stream_flags);
// User abort should cancel the opener now.
pthread_mutex_lock(&mpctx->lock);
mpctx->demuxer_cancel = mpctx->open_cancel;
pthread_mutex_unlock(&mpctx->lock);
while (!atomic_load(&mpctx->open_done)) {
mp_idle(mpctx);
if (mpctx->stop_play)
mp_abort_playback_async(mpctx);
}
if (mpctx->open_res_demuxer) {
assert(mpctx->demuxer_cancel == mpctx->open_cancel);
mpctx->demuxer = mpctx->open_res_demuxer;
mpctx->open_res_demuxer = NULL;
mpctx->open_cancel = NULL;
} else {
mpctx->error_playing = mpctx->open_res_error;
pthread_mutex_lock(&mpctx->lock);
mpctx->demuxer_cancel = NULL;
pthread_mutex_unlock(&mpctx->lock);
}
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, 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);
}
}
// 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;
lavfi_destroy(mpctx->lavfi);
mpctx->lavfi = NULL;
}
// 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->d_video && !track->vo_c) {
video_uninit(track->d_video);
track->d_video = NULL;
}
if (track->d_audio && !track->ao_c) {
audio_uninit(track->d_audio);
track->d_audio = NULL;
}
track->selected = false;
}
}
if (mpctx->vo_chain && !mpctx->vo_chain->video_src &&
!mpctx->vo_chain->filter_src)
{
uninit_video_chain(mpctx);
}
if (mpctx->ao_chain && !mpctx->ao_chain->audio_src &&
!mpctx->ao_chain->filter_src)
{
uninit_audio_chain(mpctx);
}
}
// >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, lavfi_get_graph(mpctx->lavfi)) == 0 &&
!lavfi_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;
}
mpctx->lavfi = lavfi_create(mpctx->log, graph);
if (!mpctx->lavfi)
goto done;
if (lavfi_has_failed(mpctx->lavfi))
goto done;
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);
struct lavfi_pad *pad = lavfi_find_pad(mpctx->lavfi, label);
if (!pad)
continue;
if (lavfi_pad_type(pad) != track->type)
continue;
if (lavfi_pad_direction(pad) != LAVFI_IN)
continue;
if (lavfi_get_connected(pad))
continue;
assert(!track->sink);
if (track->vo_c || track->ao_c) {
MP_ERR(mpctx, "Pad %s tries to connect to already selected track.\n",
label);
goto done;
}
track->sink = pad;
lavfi_set_connected(pad, true);
track->selected = true;
}
struct lavfi_pad *pad = lavfi_find_pad(mpctx->lavfi, "vo");
if (pad && lavfi_pad_type(pad) == STREAM_VIDEO &&
lavfi_pad_direction(pad) == LAVFI_OUT)
{
if (mpctx->vo_chain) {
if (mpctx->vo_chain->video_src) {
MP_ERR(mpctx, "Pad vo tries to connected to already used VO.\n");
goto done;
}
} else {
reinit_video_chain_src(mpctx, NULL);
if (!mpctx->vo_chain)
goto done;
}
lavfi_set_connected(pad, true);
struct vo_chain *vo_c = mpctx->vo_chain;
vo_c->filter_src = pad;
lavfi_pad_set_hwdec_devs(vo_c->filter_src, vo_c->hwdec_devs);
}
pad = lavfi_find_pad(mpctx->lavfi, "ao");
if (pad && lavfi_pad_type(pad) == STREAM_AUDIO &&
lavfi_pad_direction(pad) == LAVFI_OUT)
{
if (mpctx->ao_chain) {
if (mpctx->ao_chain->audio_src) {
MP_ERR(mpctx, "Pad ao tries to connected to already used AO.\n");
goto done;
}
} else {
reinit_audio_chain_src(mpctx, NULL);
if (!mpctx->ao_chain)
goto done;
}
lavfi_set_connected(pad, true);
mpctx->ao_chain->filter_src = pad;
}
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (track->sink && track->type == STREAM_VIDEO) {
if (!track->d_video && !init_video_decoder(mpctx, track))
goto done;
}
if (track->sink && track->type == STREAM_AUDIO) {
if (!track->d_audio && !init_audio_decoder(mpctx, track))
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]);
}
mp_notify(mpctx, MPV_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);
}
}
// Start playing the current playlist entry.
// Handle initialization and deinitialization.
static void play_current_file(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
double playback_start = -1e100;
mp_notify(mpctx, MPV_EVENT_START_FILE, NULL);
mp_cancel_reset(mpctx->playback_abort);
mpctx->error_playing = MPV_ERROR_LOADING_FAILED;
mpctx->stop_play = 0;
mpctx->filename = NULL;
mpctx->shown_aframes = 0;
mpctx->shown_vframes = 0;
mpctx->last_vo_pts = MP_NOPTS_VALUE;
mpctx->last_chapter_seek = -2;
mpctx->last_chapter_pts = MP_NOPTS_VALUE;
mpctx->last_chapter = -2;
mpctx->paused = false;
mpctx->paused_for_cache = false;
mpctx->cache_buffer = -1;
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;
mpctx->seek = (struct seek_params){ 0 };
reset_playback_state(mpctx);
mpctx->playing = mpctx->playlist->current;
if (!mpctx->playing || !mpctx->playing->filename)
goto terminate_playback;
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);
mp_load_playback_resume(mpctx, mpctx->filename);
load_per_file_options(mpctx->mconfig, mpctx->playing->params,
mpctx->playing->num_params);
#if HAVE_GPL
// Possibly GPL due to d8fd7131bbcde029ab41799fd3162050b43f6848.
mpctx->max_frames = opts->play_frames;
#endif
handle_force_window(mpctx, false);
MP_INFO(mpctx, "Playing: %s\n", mpctx->filename);
reopen_file:
assert(mpctx->demuxer == NULL);
if (process_open_hooks(mpctx) < 0)
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->demuxer || mpctx->stop_play)
goto terminate_playback;
if (mpctx->demuxer->playlist) {
struct playlist *pl = mpctx->demuxer->playlist;
int entry_stream_flags = 0;
if (!pl->disable_safety) {
entry_stream_flags = STREAM_SAFE_ONLY;
if (mpctx->demuxer->is_network)
entry_stream_flags |= STREAM_NETWORK_ONLY;
}
for (struct playlist_entry *e = pl->first; e; e = e->next)
e->stream_flags |= entry_stream_flags;
transfer_playlist(mpctx, pl);
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);
load_chapters(mpctx);
add_demuxer_tracks(mpctx, mpctx->demuxer);
open_external_files(mpctx, opts->audio_files, STREAM_AUDIO);
open_external_files(mpctx, opts->sub_name, STREAM_SUB);
open_external_files(mpctx, opts->external_files, STREAM_TYPE_COUNT);
autoload_external_files(mpctx);
check_previous_track_selection(mpctx);
if (process_preloaded_hooks(mpctx))
goto terminate_playback;
if (reinit_complex_filters(mpctx, false) < 0)
goto terminate_playback;
assert(NUM_PTRACKS == 2); // opts->stream_id is hardcoded to 2
for (int t = 0; t < STREAM_TYPE_COUNT; t++) {
for (int i = 0; i < NUM_PTRACKS; 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; i++) {
struct track *track = mpctx->current_track[i][t];
if (track) {
if (track->selected) {
MP_ERR(mpctx, "Track %d can't be selected twice.\n",
track->user_tid);
mpctx->current_track[i][t] = NULL;
} else {
track->selected = true;
}
}
}
}
for (int n = 0; n < mpctx->num_tracks; n++)
reselect_demux_stream(mpctx, mpctx->tracks[n]);
update_demuxer_properties(mpctx);
#if HAVE_ENCODING
if (mpctx->encode_lavc_ctx && mpctx->current_track[0][STREAM_VIDEO])
encode_lavc_expect_stream(mpctx->encode_lavc_ctx, AVMEDIA_TYPE_VIDEO);
if (mpctx->encode_lavc_ctx && mpctx->current_track[0][STREAM_AUDIO])
encode_lavc_expect_stream(mpctx->encode_lavc_ctx, AVMEDIA_TYPE_AUDIO);
if (mpctx->encode_lavc_ctx) {
encode_lavc_set_metadata(mpctx->encode_lavc_ctx,
mpctx->demuxer->metadata);
}
#endif
update_playback_speed(mpctx);
reinit_video_chain(mpctx);
reinit_audio_chain(mpctx);
reinit_sub_all(mpctx);
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 attached picture. 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;
mp_notify(mpctx, MPV_EVENT_FILE_LOADED, NULL);
update_screensaver_state(mpctx);
#if HAVE_GPL
// Possibly GPL due to d8fd7131bbcde029ab41799fd3162050b43f6848.
if (mpctx->max_frames == 0) {
if (!mpctx->stop_play)
mpctx->stop_play = PT_NEXT_ENTRY;
mpctx->error_playing = 0;
goto terminate_playback;
}
#endif
double startpos = rel_time_to_abs(mpctx, opts->play_start);
if (startpos == MP_NOPTS_VALUE && opts->chapterrange[0] > 0) {
double start = chapter_start_time(mpctx, opts->chapterrange[0] - 1);
if (start != MP_NOPTS_VALUE)
startpos = start;
}
if (startpos != MP_NOPTS_VALUE) {
if (!opts->rebase_start_time) {
startpos += mpctx->demuxer->start_time;
}
queue_seek(mpctx, MPSEEK_ABSOLUTE, startpos, MPSEEK_DEFAULT, 0);
execute_queued_seek(mpctx);
}
update_internal_pause_state(mpctx);
open_recorder(mpctx, true);
playback_start = mp_time_sec();
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:
update_core_idle_state(mpctx);
process_unload_hooks(mpctx);
if (mpctx->stop_play == KEEP_PLAYING)
mpctx->stop_play = AT_END_OF_FILE;
if (mpctx->stop_play != AT_END_OF_FILE)
clear_audio_output_buffers(mpctx);
if (mpctx->step_frames)
opts->pause = 1;
mp_abort_playback_async(mpctx);
close_recorder(mpctx);
// time to uninit all, except global stuff:
reinit_complex_filters(mpctx, true);
uninit_audio_chain(mpctx);
uninit_video_chain(mpctx);
uninit_sub_all(mpctx);
uninit_demuxer(mpctx);
if (!opts->gapless_audio && !mpctx->encode_lavc_ctx)
uninit_audio_out(mpctx);
mpctx->playback_initialized = false;
if (mpctx->stop_play == PT_RELOAD_FILE) {
mpctx->stop_play = KEEP_PLAYING;
mp_cancel_reset(mpctx->playback_abort);
goto reopen_file;
}
m_config_restore_backups(mpctx->mconfig);
talloc_free(mpctx->filtered_tags);
mpctx->filtered_tags = NULL;
mp_notify(mpctx, MPV_EVENT_TRACKS_CHANGED, NULL);
bool nothing_played = !mpctx->shown_aframes && !mpctx->shown_vframes &&
mpctx->error_playing <= 0;
struct mpv_event_end_file end_event = {0};
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) {
// Played/paused for longer than 1 second -> ok
mpctx->playing->playback_short =
playback_start < 0 || mp_time_sec() - playback_start < 1.0;
mpctx->playing->init_failed = nothing_played;
}
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");
MP_INFO(mpctx, "\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++;
}
}
// 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
// mutate: if true, change loop counters
struct playlist_entry *mp_next_file(struct MPContext *mpctx, int direction,
bool force, bool mutate)
{
struct playlist_entry *next = playlist_get_next(mpctx->playlist, direction);
if (next && direction < 0 && !force) {
// Don't jump to files that would immediately go to next file anyway
while (next && next->playback_short)
next = next->prev;
// Always allow jumping to first file
if (!next && mpctx->opts->loop_times == 1)
next = mpctx->playlist->first;
}
if (!next && mpctx->opts->loop_times != 1) {
if (direction > 0) {
if (mpctx->opts->shuffle)
playlist_shuffle(mpctx->playlist);
next = mpctx->playlist->first;
if (next && mpctx->opts->loop_times > 1)
mpctx->opts->loop_times--;
} else {
next = mpctx->playlist->last;
// Don't jump to files that would immediately go to next file anyway
while (next && next->playback_short)
next = next->prev;
}
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;
struct playlist_entry *cur;
for (cur = mpctx->playlist->first; cur; cur = cur->next) {
all_failed &= cur->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)
{
prepare_playlist(mpctx, mpctx->playlist);
for (;;) {
idle_loop(mpctx);
if (mpctx->stop_play == PT_QUIT)
break;
play_current_file(mpctx);
if (mpctx->stop_play == PT_QUIT)
break;
struct playlist_entry *new_entry = mpctx->playlist->current;
if (mpctx->stop_play == PT_NEXT_ENTRY || mpctx->stop_play == PT_ERROR ||
mpctx->stop_play == AT_END_OF_FILE || !mpctx->stop_play)
{
new_entry = mp_next_file(mpctx, +1, false, true);
}
mpctx->playlist->current = new_entry;
mpctx->playlist->current_was_replaced = false;
mpctx->stop_play = 0;
if (!mpctx->playlist->current && mpctx->opts->player_idle_mode < 2)
break;
}
cancel_open(mpctx);
}
// 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;
if (!mpctx->stop_play)
mpctx->stop_play = PT_CURRENT_ENTRY;
mp_wakeup_core(mpctx);
}
static void set_track_recorder_sink(struct track *track,
struct mp_recorder_sink *sink)
{
if (track->d_sub)
sub_set_recorder_sink(track->d_sub, sink);
if (track->d_video)
track->d_video->recorder_sink = sink;
if (track->d_audio)
track->d_audio->recorder_sink = sink;
track->remux_sink = sink;
}
void close_recorder(struct MPContext *mpctx)
{
if (!mpctx->recorder)
return;
for (int n = 0; n < mpctx->num_tracks; n++)
set_track_recorder_sink(mpctx->tracks[n], NULL);
mp_recorder_destroy(mpctx->recorder);
mpctx->recorder = NULL;
}
// Like close_recorder(), but also unset the option. Intended for use on errors.
void close_recorder_and_error(struct MPContext *mpctx)
{
close_recorder(mpctx);
talloc_free(mpctx->opts->record_file);
mpctx->opts->record_file = NULL;
mp_notify_property(mpctx, "record-file");
MP_ERR(mpctx, "Disabling stream recording.\n");
}
void open_recorder(struct MPContext *mpctx, bool on_init)
{
if (!mpctx->playback_initialized)
return;
close_recorder(mpctx);
char *target = mpctx->opts->record_file;
if (!target || !target[0])
return;
struct sh_stream **streams = NULL;
int num_streams = 0;
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (track->stream && track->selected &&
(track->d_sub || track->d_video || track->d_audio))
{
MP_TARRAY_APPEND(NULL, streams, num_streams, track->stream);
}
}
mpctx->recorder = mp_recorder_create(mpctx->global, mpctx->opts->record_file,
streams, num_streams);
if (!mpctx->recorder) {
talloc_free(streams);
close_recorder_and_error(mpctx);
return;
}
if (!on_init)
mp_recorder_mark_discontinuity(mpctx->recorder);
int n_stream = 0;
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (n_stream >= num_streams)
break;
// (We expect track->stream not to be reused on other tracks.)
if (track->stream == streams[n_stream]) {
set_track_recorder_sink(track,
mp_recorder_get_sink(mpctx->recorder, n_stream));
n_stream++;
}
}
talloc_free(streams);
}
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