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36c6c0f79b
mpv/player/loadfile.c
wm4 36c6c0f79b player: remove MPContext.sources fields 
Some oddity that is not needed anymore. The only thing which still
referenced them was avoiding loading external files more than once,
which is now prevented by checking the list of tracks instead.
2016-02-23 23:08:01 +01:00

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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 General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <stdbool.h>
#include <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 "input/input.h"
#include "audio/mixer.h"
#include "audio/audio.h"
#include "audio/audio_buffer.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"
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;
}
static void uninit_stream(struct MPContext *mpctx)
{
free_stream(mpctx->stream);
mpctx->stream = NULL;
}
#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->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;
}
static bool need_init_seek(struct demuxer *demux)
{
for (int n = 0; n < demux_get_num_stream(demux); n++) {
struct sh_stream *stream = demux_get_stream(demux, n);
// Subtitle streams are not properly interleaved -> force init. seek.
if (stream->type != STREAM_SUB && demux_stream_is_selected(stream))
return false;
}
return true;
}
// Enable needed streams, disable others.
// Note that switching all tracks at once (instead when initializing something)
// can be important, because reading from a demuxer stream (e.g. during init)
// will implicitly discard interleaved packets from unselected streams.
// Also initializes position for external streams.
void reselect_demux_streams(struct MPContext *mpctx)
{
// Note: we assume that all demuxer streams are covered by the track list.
for (int t = 0; t < mpctx->num_tracks; t++) {
struct track *track = mpctx->tracks[t];
if (track->demuxer && track->stream) {
bool need_init = track->selected &&
mpctx->demuxer != track->demuxer &&
need_init_seek(track->demuxer);
demuxer_select_track(track->demuxer, track->stream, track->selected);
if (need_init) {
double pts = get_current_time(mpctx);
if (pts == MP_NOPTS_VALUE)
pts = 0;
demux_seek(track->demuxer, pts, SEEK_ABSOLUTE);
}
}
}
}
// Called from the demuxer thread if a new packet is available.
static void wakeup_demux(void *pctx)
{
struct MPContext *mpctx = pctx;
mp_input_wakeup(mpctx->input);
}
static void enable_demux_thread(struct MPContext *mpctx)
{
if (mpctx->demuxer && mpctx->opts->demuxer_thread) {
demux_set_wakeup_cb(mpctx->demuxer, wakeup_demux, mpctx);
demux_start_thread(mpctx->demuxer);
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (track->is_external && track->stream && !track->preloaded &&
!track->demuxer->fully_read)
{
demux_set_wakeup_cb(track->demuxer, wakeup_demux, mpctx);
demux_start_thread(track->demuxer);
}
}
}
}
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, 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)
{
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;
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, false);
} 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)
current->selected = false;
if (track && track->demuxer == mpctx->demuxer)
demux_set_enable_refresh_seeks(mpctx->demuxer, true);
reselect_demux_streams(mpctx);
mpctx->current_track[order][type] = track;
if (track)
track->selected = true;
reselect_demux_streams(mpctx);
demux_set_enable_refresh_seeks(mpctx->demuxer, 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, MPV_EVENT_TRACK_SWITCHED, NULL);
osd_changed_all(mpctx->osd);
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;
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;
}
if (mpctx->playback_initialized)
enable_demux_thread(mpctx);
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;
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->stream->url, 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_ext(conf, params[n].name, params[n].value,
M_SETOPT_BACKUP);
}
}
struct demux_open_args {
int stream_flags;
char *url;
struct mpv_global *global;
struct mp_cancel *cancel;
struct mp_log *log;
// results
struct demuxer *demux;
int err;
};
static void open_demux_thread(void *pctx)
{
struct demux_open_args *args = pctx;
struct mpv_global *global = args->global;
struct demuxer_params p = {
.force_format = global->opts->demuxer_name,
.allow_capture = true,
.stream_flags = args->stream_flags,
};
args->demux = demux_open_url(args->url, &p, args->cancel, global);
if (!args->demux) {
if (p.demuxer_failed) {
args->err = MPV_ERROR_UNKNOWN_FORMAT;
} else {
args->err = MPV_ERROR_LOADING_FAILED;
}
}
if (args->demux && global->opts->rebase_start_time)
demux_set_ts_offset(args->demux, -args->demux->start_time);
}
static void open_demux_reentrant(struct MPContext *mpctx)
{
struct demux_open_args args = {
.global = create_sub_global(mpctx),
.cancel = mpctx->playback_abort,
.log = mpctx->log,
.stream_flags = mpctx->playing->stream_flags,
.url = talloc_strdup(NULL, mpctx->stream_open_filename),
};
if (mpctx->opts->load_unsafe_playlists)
args.stream_flags = 0;
mpctx_run_reentrant(mpctx, open_demux_thread, &args);
if (args.demux) {
talloc_steal(args.demux, args.global);
mpctx->demuxer = args.demux;
} else {
mpctx->error_playing = args.err;
talloc_free(args.global);
}
talloc_free(args.url);
}
static bool init_complex_filters(struct MPContext *mpctx)
{
assert(!mpctx->lavfi);
char *graph = mpctx->opts->lavfi_complex;
if (!graph || !graph[0])
return true;
mpctx->lavfi = lavfi_create(mpctx->log, graph);
if (!mpctx->lavfi)
return false;
if (lavfi_has_failed(mpctx->lavfi))
return false;
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;
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)
{
lavfi_set_connected(pad, true);
reinit_video_chain_src(mpctx, pad);
}
pad = lavfi_find_pad(mpctx->lavfi, "ao");
if (pad && lavfi_pad_type(pad) == STREAM_AUDIO &&
lavfi_pad_direction(pad) == LAVFI_OUT)
{
lavfi_set_connected(pad, true);
reinit_audio_chain_src(mpctx, pad);
}
return true;
}
static bool init_complex_filter_decoders(struct MPContext *mpctx)
{
if (!mpctx->lavfi)
return true;
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
if (track->sink && track->type == STREAM_VIDEO) {
if (!init_video_decoder(mpctx, track))
return false;
}
if (track->sink && track->type == STREAM_AUDIO) {
if (!init_audio_decoder(mpctx, track))
return false;
}
}
return true;
}
static void uninit_complex_filters(struct MPContext *mpctx)
{
if (!mpctx->lavfi)
return;
for (int n = 0; n < mpctx->num_tracks; n++) {
struct track *track = mpctx->tracks[n];
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;
}
}
if (mpctx->vo_chain && mpctx->vo_chain->filter_src)
uninit_video_chain(mpctx);
if (mpctx->ao_chain && mpctx->ao_chain->filter_src)
uninit_audio_chain(mpctx);
lavfi_destroy(mpctx->lavfi);
mpctx->lavfi = NULL;
}
// 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->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_EDITION | 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);
mpctx->max_frames = opts->play_frames;
handle_force_window(mpctx, false);
MP_INFO(mpctx, "Playing: %s\n", mpctx->filename);
reopen_file:
assert(mpctx->stream == NULL);
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->stream->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;
}
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 (!init_complex_filters(mpctx))
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)
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;
}
}
}
}
reselect_demux_streams(mpctx);
update_demuxer_properties(mpctx);
enable_demux_thread(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);
if (!init_complex_filter_decoders(mpctx))
goto terminate_playback;
reinit_video_chain(mpctx);
reinit_audio_chain(mpctx);
reinit_sub_all(mpctx);
if (!mpctx->vo_chain && !mpctx->ao_chain) {
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);
if (mpctx->max_frames == 0) {
if (!mpctx->stop_play)
mpctx->stop_play = PT_NEXT_ENTRY;
mpctx->error_playing = 0;
goto terminate_playback;
}
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) {
queue_seek(mpctx, MPSEEK_ABSOLUTE, startpos, 0, true);
execute_queued_seek(mpctx);
}
get_relative_time(mpctx); // reset current delta
if (mpctx->opts->pause)
pause_player(mpctx);
playback_start = mp_time_sec();
mpctx->error_playing = 0;
while (!mpctx->stop_play)
run_playloop(mpctx);
MP_VERBOSE(mpctx, "EOF code: %d \n", mpctx->stop_play);
terminate_playback:
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_cancel_trigger(mpctx->playback_abort);
// time to uninit all, except global stuff:
uninit_complex_filters(mpctx);
uninit_audio_chain(mpctx);
uninit_video_chain(mpctx);
uninit_sub_all(mpctx);
uninit_demuxer(mpctx);
uninit_stream(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 (mpctx->error_playing == 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
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) {
// 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)
{
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);
}
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;
}
}
// 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;
}
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