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5ed7bc6321
mpv/player/loadfile.c
wm4 5ed7bc6321 video: fix and simplify video format changes and last frame display 
The previous commit broke these things, and fixing them is separate in
this commit in order to reduce the volume of changes.

Move the image queue from the VO to the playback core. The image queue
is a remnant of the old way how vdpau was implemented, and increasingly
became more and more an artifact. In the end, it did only one thing:
computing the duration of the current frame. This was done by taking the
PTS difference between the current and the future frame. We keep this,
but by moving it out of the VO, we don't have to special-case format
changes anymore. This simplifies the code a lot.

Since we need the queue to compute the duration only, a queue size
larger than 2 makes no sense, and we can hardcode that.

Also change how the last frame is handled. The last frame is a bit of a
problem, because video timing works by showing one frame after another,
which makes it a special case. Make the VO provide a function to notify
us when the frame is done, instead. The frame duration is used for that.

This is not perfect. For example, changing playback speed during the
last frame doesn't update the end time. Pausing will not stop the clock
that times the last frame. But I don't think this matters for such a
corner case.
2014-08-12 23:24:08 +02:00

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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stddef.h>
#include <stdbool.h>
#include <strings.h>
#include <inttypes.h>
#include <assert.h>
#include <libavutil/avutil.h>
#include "config.h"
#include "talloc.h"
#include "osdep/io.h"
#include "osdep/terminal.h"
#include "osdep/timer.h"
#include "common/msg.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 "stream/resolve/resolve.h"
#include "sub/ass_mp.h"
#include "sub/dec_sub.h"
#include "sub/find_subfiles.h"
#include "video/decode/dec_video.h"
#include "video/out/vo.h"
#include "core.h"
#include "command.h"
#include "libmpv/client.h"
static void reselect_demux_streams(struct MPContext *mpctx);
static void uninit_sub(struct MPContext *mpctx, int order)
{
if (mpctx->d_sub[order])
sub_reset(mpctx->d_sub[order]);
mpctx->d_sub[order] = NULL; // Note: not free'd.
int obj = order ? OSDTYPE_SUB2 : OSDTYPE_SUB;
osd_set_sub(mpctx->osd, obj, NULL);
reset_subtitles(mpctx, order);
reselect_demux_streams(mpctx);
}
void uninit_player(struct MPContext *mpctx, unsigned int mask)
{
struct MPOpts *opts = mpctx->opts;
mask &= mpctx->initialized_flags;
MP_DBG(mpctx, "\n*** uninit(0x%X)\n", mask);
if (mask & INITIALIZED_ACODEC) {
mpctx->initialized_flags &= ~INITIALIZED_ACODEC;
mixer_uninit_audio(mpctx->mixer);
audio_uninit(mpctx->d_audio);
mpctx->d_audio = NULL;
mpctx->audio_status = STATUS_EOF;
reselect_demux_streams(mpctx);
}
if (mask & INITIALIZED_SUB) {
mpctx->initialized_flags &= ~INITIALIZED_SUB;
uninit_sub(mpctx, 0);
}
if (mask & INITIALIZED_SUB2) {
mpctx->initialized_flags &= ~INITIALIZED_SUB2;
uninit_sub(mpctx, 1);
}
if (mask & INITIALIZED_LIBASS) {
mpctx->initialized_flags &= ~INITIALIZED_LIBASS;
#if HAVE_LIBASS
if (mpctx->ass_renderer)
ass_renderer_done(mpctx->ass_renderer);
mpctx->ass_renderer = NULL;
ass_clear_fonts(mpctx->ass_library);
#endif
}
if (mask & INITIALIZED_VCODEC) {
mpctx->initialized_flags &= ~INITIALIZED_VCODEC;
reset_video_state(mpctx);
if (mpctx->d_video)
video_uninit(mpctx->d_video);
mpctx->d_video = NULL;
mpctx->video_status = STATUS_EOF;
mpctx->sync_audio_to_video = false;
reselect_demux_streams(mpctx);
}
if (mask & INITIALIZED_DEMUXER) {
mpctx->initialized_flags &= ~INITIALIZED_DEMUXER;
assert(!(mpctx->initialized_flags &
(INITIALIZED_VCODEC | INITIALIZED_ACODEC |
INITIALIZED_SUB2 | INITIALIZED_SUB)));
for (int i = 0; i < mpctx->num_tracks; i++) {
talloc_free(mpctx->tracks[i]);
}
mpctx->num_tracks = 0;
for (int r = 0; r < NUM_PTRACKS; r++) {
for (int t = 0; t < STREAM_TYPE_COUNT; t++)
mpctx->current_track[r][t] = NULL;
}
assert(!mpctx->d_video && !mpctx->d_audio &&
!mpctx->d_sub[0] && !mpctx->d_sub[1]);
mpctx->master_demuxer = NULL;
for (int i = 0; i < mpctx->num_sources; i++) {
uninit_subs(mpctx->sources[i]);
struct demuxer *demuxer = mpctx->sources[i];
struct stream *stream = demuxer->stream;
free_demuxer(demuxer);
if (stream != mpctx->stream)
free_stream(stream);
}
talloc_free(mpctx->sources);
mpctx->sources = NULL;
mpctx->demuxer = NULL;
mpctx->num_sources = 0;
talloc_free(mpctx->timeline);
mpctx->timeline = NULL;
mpctx->num_timeline_parts = 0;
talloc_free(mpctx->chapters);
mpctx->chapters = NULL;
mpctx->num_chapters = 0;
mpctx->video_offset = 0;
}
// kill the cache process:
if (mask & INITIALIZED_STREAM) {
mpctx->initialized_flags &= ~INITIALIZED_STREAM;
if (mpctx->stream)
free_stream(mpctx->stream);
mpctx->stream = NULL;
}
if (mask & INITIALIZED_VO) {
mpctx->initialized_flags &= ~INITIALIZED_VO;
vo_destroy(mpctx->video_out);
mpctx->video_out = NULL;
}
if (mask & INITIALIZED_AO) {
struct ao *ao = mpctx->ao;
mpctx->initialized_flags &= ~INITIALIZED_AO;
if (ao) {
// Note: with gapless_audio, stop_play is not correctly set
if (opts->gapless_audio || mpctx->stop_play == AT_END_OF_FILE)
ao_drain(ao);
ao_uninit(ao);
}
mpctx->ao = NULL;
talloc_free(mpctx->ao_decoder_fmt);
mpctx->ao_decoder_fmt = NULL;
}
if (mask & INITIALIZED_PLAYBACK)
mpctx->initialized_flags &= ~INITIALIZED_PLAYBACK;
}
#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, "[stream] %-5s %3s", tname, t->selected ? "(+)" : "");
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->attached_picture)
APPEND(b, " [P]");
if (t->title)
APPEND(b, " '%s'", t->title);
const char *codec = s ? s->codec : NULL;
APPEND(b, " (%s)", codec ? codec : "<unknown>");
if (t->is_external)
APPEND(b, " (external)");
MP_INFO(mpctx, "%s\n", b);
}
void update_demuxer_properties(struct MPContext *mpctx)
{
struct demuxer *demuxer = mpctx->master_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, "[edition] %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->track_layout;
if (tracks->events & DEMUX_EVENT_STREAMS) {
add_demuxer_tracks(mpctx, tracks);
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]);
}
tracks->events &= ~DEMUX_EVENT_STREAMS;
}
struct mp_tags *info = demuxer->metadata;
if ((events & DEMUX_EVENT_METADATA) && info->num_keys) {
MP_INFO(mpctx, "File tags:\n");
for (int n = 0; n < info->num_keys; n++)
MP_INFO(mpctx, " %s: %s\n", info->keys[n], info->values[n]);
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->num_streams; n++) {
struct sh_stream *stream = demux->streams[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.
static 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_main_demux_pts(mpctx);
if (pts != MP_NOPTS_VALUE)
demux_seek(track->demuxer, pts, SEEK_ABSOLUTE);
}
}
}
}
static struct sh_stream *select_fallback_stream(struct demuxer *d,
enum stream_type type,
int index)
{
struct sh_stream *best_stream = NULL;
for (int n = 0; n < d->num_streams; n++) {
struct sh_stream *s = d->streams[n];
if (s->type == type) {
best_stream = s;
if (index == 0)
break;
index -= 1;
}
}
return best_stream;
}
// 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);
}
}
bool timeline_set_part(struct MPContext *mpctx, int i, bool force)
{
struct timeline_part *p = mpctx->timeline + mpctx->timeline_part;
struct timeline_part *n = mpctx->timeline + i;
mpctx->timeline_part = i;
mpctx->video_offset = n->start - n->source_start;
if (n->source == p->source && !force)
return false;
enum stop_play_reason orig_stop_play = mpctx->stop_play;
if (!mpctx->d_video && mpctx->stop_play == KEEP_PLAYING)
mpctx->stop_play = AT_END_OF_FILE; // let audio uninit drain data
uninit_player(mpctx, INITIALIZED_VCODEC | (mpctx->opts->fixed_vo ? 0 : INITIALIZED_VO) | (mpctx->opts->gapless_audio ? 0 : INITIALIZED_AO) | INITIALIZED_ACODEC | INITIALIZED_SUB | INITIALIZED_SUB2);
mpctx->stop_play = orig_stop_play;
if (mpctx->demuxer) {
demux_stop_thread(mpctx->demuxer);
demux_flush(mpctx->demuxer);
}
mpctx->demuxer = n->source;
mpctx->stream = mpctx->demuxer->stream;
// While another timeline was active, the selection of active tracks might
// have been changed - possibly we need to update this source.
for (int x = 0; x < mpctx->num_tracks; x++) {
struct track *track = mpctx->tracks[x];
if (track->under_timeline) {
track->demuxer = mpctx->demuxer;
track->stream = demuxer_stream_by_demuxer_id(track->demuxer,
track->type,
track->demuxer_id);
// EDL can have mismatched files in the same timeline
if (!track->stream) {
track->stream = select_fallback_stream(track->demuxer,
track->type,
track->user_tid - 1);
}
}
}
reselect_demux_streams(mpctx);
enable_demux_thread(mpctx);
return true;
}
// Given pts, switch playback to the corresponding part.
// Return offset within that part.
double timeline_set_from_time(struct MPContext *mpctx, double pts, bool *need_reset)
{
if (pts < 0)
pts = 0;
for (int i = 0; i < mpctx->num_timeline_parts; i++) {
struct timeline_part *p = mpctx->timeline + i;
if (pts < (p + 1)->start) {
*need_reset = timeline_set_part(mpctx, i, false);
return pts - p->start + p->source_start;
}
}
return -1;
}
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,
bool under_timeline)
{
for (int i = 0; i < mpctx->num_tracks; i++) {
struct track *track = mpctx->tracks[i];
if (track->original_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,
.title = stream->title,
.default_track = stream->default_track,
.attached_picture = stream->attached_picture != NULL,
.lang = stream->lang,
.under_timeline = under_timeline,
.demuxer = demuxer,
.stream = stream,
.original_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 < demuxer->num_streams; n++)
add_stream_track(mpctx, demuxer, demuxer->streams[n], !!mpctx->timeline);
}
// 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:
* 0) track matches tid (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
* 3) track is marked default
* 4) lower track number
* If select_fallback is not set, 4) 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)
{
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->default_track != t2->default_track)
return t1->default_track;
if (t1->attached_picture != t2->attached_picture)
return !t1->attached_picture;
return t1->user_tid <= t2->user_tid;
}
static struct track *select_track(struct MPContext *mpctx,
enum stream_type type, int tid, char **langs)
{
if (tid == -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 (!pick || compare_track(track, pick, langs))
pick = track;
}
if (pick && !select_fallback && !(pick->is_external && !pick->no_default)
&& !match_lang(langs, pick->lang) && !pick->default_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".
if (opts->video_id >= 0)
mpctx->opts->video_id = -1;
if (opts->audio_id >= 0)
mpctx->opts->audio_id = -1;
if (opts->sub_id >= 0)
mpctx->opts->sub_id = -1;
if (opts->sub2_id >= 0)
mpctx->opts->sub2_id = -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)
{
assert(!track || track->type == type);
assert(order >= 0 && order < NUM_PTRACKS);
struct track *current = mpctx->current_track[order][type];
if (track == current)
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) {
int uninit = INITIALIZED_VCODEC;
if (!mpctx->opts->force_vo)
uninit |= mpctx->opts->fixed_vo && track ? 0 : INITIALIZED_VO;
uninit_player(mpctx, uninit);
} else if (type == STREAM_AUDIO) {
clear_audio_output_buffers(mpctx);
uninit_player(mpctx, INITIALIZED_AO | INITIALIZED_ACODEC);
} else if (type == STREAM_SUB) {
uninit_player(mpctx, INITIALIZED_SUB);
}
} else if (order == 1) {
if (type == STREAM_SUB)
uninit_player(mpctx, INITIALIZED_SUB2);
}
if (current)
current->selected = false;
reselect_demux_streams(mpctx);
mpctx->current_track[order][type] = track;
if (track)
track->selected = true;
reselect_demux_streams(mpctx);
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_subs(mpctx, order);
}
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)
{
mp_switch_track_n(mpctx, 0, type, track);
}
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);
}
}
// Mark the current track selection as explicitly user-requested. (This is
// different from auto-selection or disabling a track due to errors.)
void mp_mark_user_track_selection(struct MPContext *mpctx, int order,
enum stream_type type)
{
struct track *track = mpctx->current_track[order][type];
int user_tid = track ? track->user_tid : -2;
if (type == STREAM_VIDEO && order == 0) {
mpctx->opts->video_id = user_tid;
} else if (type == STREAM_AUDIO && order == 0) {
mpctx->opts->audio_id = user_tid;
} else if (type == STREAM_SUB && order == 0) {
mpctx->opts->sub_id = user_tid;
} else if (type == STREAM_SUB && order == 1) {
mpctx->opts->sub2_id = user_tid;
}
}
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->under_timeline)
return false;
if (!track->is_external)
return false;
mp_deselect_track(mpctx, track);
if (track->selected)
return false;
int index = 0;
while (index < mpctx->num_tracks && mpctx->tracks[index] != track)
index++;
assert(index < mpctx->num_tracks);
while (index + 1 < mpctx->num_tracks) {
mpctx->tracks[index] = mpctx->tracks[index + 1];
index++;
}
mpctx->num_tracks--;
talloc_free(track);
mp_notify(mpctx, MPV_EVENT_TRACKS_CHANGED, NULL);
return true;
}
static void open_subtitles_from_options(struct MPContext *mpctx)
{
if (mpctx->opts->sub_name) {
for (int i = 0; mpctx->opts->sub_name[i] != NULL; ++i)
mp_add_subtitles(mpctx, mpctx->opts->sub_name[i]);
}
if (mpctx->opts->sub_auto >= 0) { // auto load sub file ...
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_text_subtitles(mpctx->global, base_filename);
talloc_steal(tmp, list);
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_sources; n++) {
if (strcmp(mpctx->sources[n]->stream->url, filename) == 0)
goto skip;
}
struct track *track = mp_add_subtitles(mpctx, filename);
if (track) {
track->auto_loaded = true;
if (!track->lang)
track->lang = talloc_strdup(track, lang);
}
skip:;
}
talloc_free(tmp);
}
}
static struct track *open_external_file(struct MPContext *mpctx, char *filename,
char *demuxer_name,
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 stream *stream = stream_open(filename, mpctx->global);
if (!stream)
goto err_out;
if (filter != STREAM_SUB)
stream_enable_cache(&stream, &opts->stream_cache);
struct demuxer_params params = {
.expect_subtitle = filter == STREAM_SUB,
};
struct demuxer *demuxer =
demux_open(stream, demuxer_name, &params, mpctx->global);
if (!demuxer) {
free_stream(stream);
goto err_out;
}
struct track *first = NULL;
for (int n = 0; n < demuxer->num_streams; n++) {
struct sh_stream *sh = demuxer->streams[n];
if (sh->type == filter) {
struct track *t = add_stream_track(mpctx, demuxer, sh, false);
t->is_external = true;
t->title = talloc_strdup(t, mp_basename(disp_filename));
t->external_filename = talloc_strdup(t, filename);
first = t;
}
}
if (!first) {
free_demuxer(demuxer);
free_stream(stream);
MP_WARN(mpctx, "No streams added from file %s.\n",
disp_filename);
goto err_out;
}
MP_TARRAY_APPEND(NULL, mpctx->sources, mpctx->num_sources, demuxer);
return first;
err_out:
MP_ERR(mpctx, "Can not open external file %s.\n",
disp_filename);
return false;
}
static void open_audiofiles_from_options(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
for (int n = 0; opts->audio_files && opts->audio_files[n]; n++) {
open_external_file(mpctx, opts->audio_files[n], opts->audio_demuxer_name,
STREAM_AUDIO);
}
}
struct track *mp_add_subtitles(struct MPContext *mpctx, char *filename)
{
struct MPOpts *opts = mpctx->opts;
return open_external_file(mpctx, filename, opts->sub_demuxer_name,
STREAM_SUB);
}
static void open_subtitles_from_resolve(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
struct mp_resolve_result *res = mpctx->resolve_result;
if (!res)
return;
for (int n = 0; n < res->num_subs; n++) {
struct mp_resolve_sub *sub = res->subs[n];
char *s = talloc_strdup(NULL, sub->url);
if (!s)
s = talloc_asprintf(NULL, "memory://%s", sub->data);
struct track *t =
open_external_file(mpctx, s, opts->sub_demuxer_name, STREAM_SUB);
talloc_free(s);
if (t) {
t->lang = talloc_strdup(t, sub->lang);
t->no_default = true;
}
}
}
static const char *const font_mimetypes[] = {
"application/x-truetype-font",
"application/vnd.ms-opentype",
"application/x-font-ttf",
"application/x-font", // probably incorrect
NULL
};
static const char *const font_exts[] = {".ttf", ".ttc", ".otf", NULL};
static bool attachment_is_font(struct mp_log *log, struct demux_attachment *att)
{
if (!att->name || !att->type || !att->data || !att->data_size)
return false;
for (int n = 0; font_mimetypes[n]; n++) {
if (strcmp(font_mimetypes[n], att->type) == 0)
return true;
}
// fallback: match against file extension
char *ext = strlen(att->name) > 4 ? att->name + strlen(att->name) - 4 : "";
for (int n = 0; font_exts[n]; n++) {
if (strcasecmp(ext, font_exts[n]) == 0) {
mp_warn(log, "Loading font attachment '%s' with MIME type %s. "
"Assuming this is a broken Matroska file, which was "
"muxed without setting a correct font MIME type.\n",
att->name, att->type);
return true;
}
}
return false;
}
static void add_subtitle_fonts_from_sources(struct MPContext *mpctx)
{
#if HAVE_LIBASS
if (mpctx->opts->ass_enabled) {
for (int j = 0; j < mpctx->num_sources; j++) {
struct demuxer *d = mpctx->sources[j];
for (int i = 0; i < d->num_attachments; i++) {
struct demux_attachment *att = d->attachments + i;
if (mpctx->opts->use_embedded_fonts &&
attachment_is_font(mpctx->log, att))
{
ass_add_font(mpctx->ass_library, att->name, att->data,
att->data_size);
}
}
}
}
#endif
}
static void init_sub_renderer(struct MPContext *mpctx)
{
#if HAVE_LIBASS
assert(!(mpctx->initialized_flags & INITIALIZED_LIBASS));
assert(!mpctx->ass_renderer);
mpctx->ass_renderer = ass_renderer_init(mpctx->ass_library);
if (mpctx->ass_renderer) {
mp_ass_configure_fonts(mpctx->ass_renderer, mpctx->opts->sub_text_style,
mpctx->global, mpctx->ass_log);
}
mpctx->initialized_flags |= INITIALIZED_LIBASS;
#endif
}
static struct mp_resolve_result *resolve_url(const char *filename,
struct mpv_global *global)
{
if (!mp_is_url(bstr0(filename)))
return NULL;
#if HAVE_LIBQUVI
return mp_resolve_quvi(filename, global);
#else
return NULL;
#endif
}
static void print_resolve_contents(struct mp_log *log,
struct mp_resolve_result *res)
{
mp_msg(log, MSGL_V, "Resolve:\n");
mp_msg(log, MSGL_V, " title: %s\n", res->title);
mp_msg(log, MSGL_V, " url: %s\n", res->url);
for (int n = 0; n < res->num_srcs; n++) {
mp_msg(log, MSGL_V, " source %d:\n", n);
if (res->srcs[n]->url)
mp_msg(log, MSGL_V, " url: %s\n", res->srcs[n]->url);
if (res->srcs[n]->encid)
mp_msg(log, MSGL_V, " encid: %s\n", res->srcs[n]->encid);
}
for (int n = 0; n < res->num_subs; n++) {
mp_msg(log, MSGL_V, " subtitle %d:\n", n);
if (res->subs[n]->url)
mp_msg(log, MSGL_V, " url: %s\n", res->subs[n]->url);
if (res->subs[n]->lang)
mp_msg(log, MSGL_V, " lang: %s\n", res->subs[n]->lang);
if (res->subs[n]->data) {
mp_msg(log, MSGL_V, " data: %zd bytes\n",
strlen(res->subs[n]->data));
}
}
if (res->playlist) {
mp_msg(log, MSGL_V, " playlist with %d entries\n",
playlist_entry_count(res->playlist));
}
}
// 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) {
playlist_transfer_entries(mpctx->playlist, pl);
// current entry is replaced
if (mpctx->playlist->current)
playlist_remove(mpctx->playlist, mpctx->playlist->current);
} else {
MP_WARN(mpctx, "Empty playlist!\n");
}
}
static void print_timeline(struct MPContext *mpctx)
{
if (mpctx->timeline) {
int part_count = mpctx->num_timeline_parts;
MP_VERBOSE(mpctx, "Timeline contains %d parts from %d "
"sources. Total length %.3f seconds.\n", part_count,
mpctx->num_sources, mpctx->timeline[part_count].start);
MP_VERBOSE(mpctx, "Source files:\n");
for (int i = 0; i < mpctx->num_sources; i++)
MP_VERBOSE(mpctx, "%d: %s\n", i,
mpctx->sources[i]->filename);
MP_VERBOSE(mpctx, "Timeline parts: (number, start, "
"source_start, source):\n");
for (int i = 0; i < part_count; i++) {
struct timeline_part *p = mpctx->timeline + i;
MP_VERBOSE(mpctx, "%3d %9.3f %9.3f %p/%s\n", i, p->start,
p->source_start, p->source, p->source->filename);
}
MP_VERBOSE(mpctx, "END %9.3f\n",
mpctx->timeline[part_count].start);
}
}
static void load_chapters(struct MPContext *mpctx)
{
if (!mpctx->chapters && mpctx->master_demuxer &&
mpctx->master_demuxer->num_chapters)
{
int count = mpctx->master_demuxer->num_chapters;
mpctx->chapters = talloc_array(NULL, struct chapter, count);
mpctx->num_chapters = count;
for (int n = 0; n < count; n++) {
struct demux_chapter *dchapter = &mpctx->master_demuxer->chapters[n];
mpctx->chapters[n] = (struct chapter){
.start = dchapter->start / 1e9,
.name = talloc_strdup(mpctx->chapters, dchapter->name),
};
}
}
}
/* When demux performs a blocking operation (network connection or
* cache filling) if the operation fails we use this function to check
* if it was interrupted by the user.
* The function returns whether it was interrupted. */
static bool demux_was_interrupted(struct MPContext *mpctx)
{
for (;;) {
if (mpctx->stop_play != KEEP_PLAYING
&& mpctx->stop_play != AT_END_OF_FILE)
return true;
mp_cmd_t *cmd = mp_input_get_cmd(mpctx->input, 0, 0);
if (!cmd)
break;
if (mp_input_is_abort_cmd(cmd))
run_command(mpctx, cmd);
mp_cmd_free(cmd);
}
return false;
}
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);
}
}
// Start playing the current playlist entry.
// Handle initialization and deinitialization.
static void play_current_file(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
void *tmp = talloc_new(NULL);
double playback_start = -1e100;
mpctx->initialized_flags |= INITIALIZED_PLAYBACK;
mp_notify(mpctx, MPV_EVENT_START_FILE, NULL);
mpctx->stop_play = 0;
mpctx->filename = NULL;
mpctx->shown_aframes = 0;
mpctx->shown_vframes = 0;
if (mpctx->playlist->current)
mpctx->filename = mpctx->playlist->current->filename;
if (!mpctx->filename)
goto terminate_playback;
char *local_filename = mp_file_url_to_filename(tmp, bstr0(mpctx->filename));
if (local_filename)
mpctx->filename = local_filename;
#if HAVE_ENCODING
encode_lavc_discontinuity(mpctx->encode_lavc_ctx);
#endif
mpctx->add_osd_seek_info &= OSD_SEEK_INFO_EDITION;
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);
if (opts->position_resume)
mp_load_playback_resume(mpctx, mpctx->filename);
load_per_file_options(mpctx->mconfig, mpctx->playlist->current->params,
mpctx->playlist->current->num_params);
#if HAVE_LIBASS
if (opts->ass_style_override)
ass_set_style_overrides(mpctx->ass_library, opts->ass_force_style_list);
#endif
MP_INFO(mpctx, "Playing: %s\n", mpctx->filename);
//============ Open & Sync STREAM --- fork cache2 ====================
assert(mpctx->stream == NULL);
assert(mpctx->demuxer == NULL);
assert(mpctx->d_audio == NULL);
assert(mpctx->d_video == NULL);
assert(mpctx->d_sub[0] == NULL);
assert(mpctx->d_sub[1] == NULL);
char *stream_filename = mpctx->filename;
mpctx->resolve_result = resolve_url(stream_filename, mpctx->global);
if (mpctx->resolve_result) {
talloc_steal(tmp, mpctx->resolve_result);
print_resolve_contents(mpctx->log, mpctx->resolve_result);
if (mpctx->resolve_result->playlist) {
transfer_playlist(mpctx, mpctx->resolve_result->playlist);
goto terminate_playback;
}
stream_filename = mpctx->resolve_result->url;
}
mpctx->stream = stream_open(stream_filename, mpctx->global);
if (!mpctx->stream) { // error...
demux_was_interrupted(mpctx);
goto terminate_playback;
}
mpctx->initialized_flags |= INITIALIZED_STREAM;
if (opts->stream_dump && opts->stream_dump[0]) {
stream_dump(mpctx);
goto terminate_playback;
}
// Must be called before enabling cache.
mp_nav_init(mpctx);
int res = stream_enable_cache(&mpctx->stream, &opts->stream_cache);
if (res == 0)
if (demux_was_interrupted(mpctx))
goto terminate_playback;
stream_set_capture_file(mpctx->stream, opts->stream_capture);
goto_reopen_demuxer: ;
mp_nav_reset(mpctx);
//============ Open DEMUXERS --- DETECT file type =======================
mpctx->audio_delay = opts->audio_delay;
mpctx->demuxer = demux_open(mpctx->stream, opts->demuxer_name, NULL,
mpctx->global);
mpctx->master_demuxer = mpctx->demuxer;
if (!mpctx->demuxer) {
MP_ERR(mpctx, "Failed to recognize file format.\n");
goto terminate_playback;
}
MP_TARRAY_APPEND(NULL, mpctx->sources, mpctx->num_sources, mpctx->demuxer);
mpctx->initialized_flags |= INITIALIZED_DEMUXER;
if (mpctx->demuxer->playlist) {
if (mpctx->demuxer->stream->safe_origin || opts->load_unsafe_playlists) {
transfer_playlist(mpctx, mpctx->demuxer->playlist);
} else {
MP_ERR(mpctx, "\nThis looks like a playlist, but playlist support "
"will not be used automatically.\nThe main problem with "
"playlist safety is that playlist entries can be arbitrary,\n"
"and an attacker could make mpv poke around in your local "
"filesystem or network.\nUse --playlist=file or the "
"--load-unsafe-playlists option to load them anyway.\n");
}
goto terminate_playback;
}
if (mpctx->demuxer->matroska_data.ordered_chapters)
build_ordered_chapter_timeline(mpctx);
if (mpctx->demuxer->type == DEMUXER_TYPE_EDL)
build_mpv_edl_timeline(mpctx);
if (mpctx->demuxer->type == DEMUXER_TYPE_CUE)
build_cue_timeline(mpctx);
print_timeline(mpctx);
load_chapters(mpctx);
mpctx->track_layout = mpctx->demuxer;
if (mpctx->timeline) {
// With Matroska, the "master" file usually dictates track layout etc.
// On the contrary, the EDL and CUE demuxers are empty wrappers, as
// well as Matroska ordered chapter playlist-like files.
mpctx->track_layout = mpctx->timeline[0].source;
for (int n = 0; n < mpctx->num_timeline_parts; n++) {
if (mpctx->timeline[n].source == mpctx->demuxer) {
mpctx->track_layout = mpctx->demuxer;
break;
}
}
}
add_demuxer_tracks(mpctx, mpctx->track_layout);
mpctx->timeline_part = 0;
if (mpctx->timeline)
timeline_set_part(mpctx, mpctx->timeline_part, true);
add_subtitle_fonts_from_sources(mpctx);
// libass seems to misbehave if fonts are changed while a renderer
// exists, so we (re)create the renderer after fonts are set.
init_sub_renderer(mpctx);
open_subtitles_from_options(mpctx);
open_subtitles_from_resolve(mpctx);
open_audiofiles_from_options(mpctx);
check_previous_track_selection(mpctx);
mpctx->current_track[0][STREAM_VIDEO] =
select_track(mpctx, STREAM_VIDEO, mpctx->opts->video_id, NULL);
mpctx->current_track[0][STREAM_AUDIO] =
select_track(mpctx, STREAM_AUDIO, mpctx->opts->audio_id,
mpctx->opts->audio_lang);
mpctx->current_track[0][STREAM_SUB] =
select_track(mpctx, STREAM_SUB, mpctx->opts->sub_id,
mpctx->opts->sub_lang);
mpctx->current_track[1][STREAM_SUB] =
select_track(mpctx, STREAM_SUB, mpctx->opts->sub2_id, NULL);
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 (mpctx->current_track[0][STREAM_VIDEO] &&
mpctx->current_track[0][STREAM_VIDEO]->attached_picture)
{
MP_INFO(mpctx,
"Displaying attached picture. Use --no-audio-display to prevent this.\n");
}
#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
reinit_video_chain(mpctx);
reinit_audio_chain(mpctx);
reinit_subs(mpctx, 0);
reinit_subs(mpctx, 1);
//==================== START PLAYING =======================
if (!mpctx->d_video && !mpctx->d_audio) {
struct demuxer *d = mpctx->demuxer;
MP_FATAL(mpctx, "No video or audio streams selected.\n");
if (d->stream->uncached_type == STREAMTYPE_DVB) {
int dir = mpctx->last_dvb_step;
if (demux_stream_control(d, STREAM_CTRL_DVB_STEP_CHANNEL, &dir) > 0)
mpctx->stop_play = PT_RELOAD_DEMUXER;
}
goto terminate_playback;
}
MP_VERBOSE(mpctx, "Starting playback...\n");
mpctx->max_frames = opts->play_frames;
if (mpctx->max_frames == 0) {
mpctx->stop_play = PT_NEXT_ENTRY;
goto terminate_playback;
}
reset_playback_state(mpctx);
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->step_frames = 0;
mpctx->backstep_active = false;
mpctx->seek = (struct seek_params){ 0 };
// If there's a timeline force an absolute seek to initialize state
double startpos = rel_time_to_abs(mpctx, opts->play_start);
if (startpos == MP_NOPTS_VALUE && mpctx->resolve_result &&
mpctx->resolve_result->start_time > 0)
startpos = mpctx->resolve_result->start_time;
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 && mpctx->timeline)
startpos = 0;
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);
mp_notify(mpctx, MPV_EVENT_FILE_LOADED, NULL);
playback_start = mp_time_sec();
mpctx->error_playing = false;
while (!mpctx->stop_play)
run_playloop(mpctx);
MP_VERBOSE(mpctx, "EOF code: %d \n", mpctx->stop_play);
if (mpctx->stop_play == PT_RELOAD_DEMUXER) {
mpctx->stop_play = KEEP_PLAYING;
uninit_player(mpctx, INITIALIZED_ALL -
(INITIALIZED_PLAYBACK | INITIALIZED_STREAM |
(opts->fixed_vo ? INITIALIZED_VO : 0)));
goto goto_reopen_demuxer;
}
terminate_playback:
mp_nav_destroy(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 (opts->position_save_on_quit && mpctx->stop_play == PT_QUIT)
mp_write_watch_later_conf(mpctx);
if (mpctx->step_frames)
opts->pause = 1;
MP_INFO(mpctx, "\n");
// time to uninit all, except global stuff:
int uninitialize_parts = INITIALIZED_ALL;
if (opts->fixed_vo)
uninitialize_parts -= INITIALIZED_VO;
if ((opts->gapless_audio && mpctx->stop_play == AT_END_OF_FILE) ||
mpctx->encode_lavc_ctx)
uninitialize_parts -= INITIALIZED_AO;
uninit_player(mpctx, uninitialize_parts);
// xxx handle this as INITIALIZED_CONFIG?
if (mpctx->stop_play != PT_RESTART)
m_config_restore_backups(mpctx->mconfig);
mpctx->filename = NULL;
mpctx->resolve_result = NULL;
talloc_free(tmp);
// Played/paused for longer than 3 seconds -> ok
bool playback_short = mpctx->stop_play == AT_END_OF_FILE &&
(playback_start < 0 || mp_time_sec() - playback_start < 3.0);
bool init_failed = mpctx->stop_play == AT_END_OF_FILE &&
(mpctx->shown_aframes == 0 && mpctx->shown_vframes == 0);
if (mpctx->playlist->current && !mpctx->playlist->current_was_replaced) {
mpctx->playlist->current->playback_short = playback_short;
mpctx->playlist->current->init_failed = init_failed;
}
mp_notify(mpctx, MPV_EVENT_TRACKS_CHANGED, NULL);
struct mpv_event_end_file end_event = {0};
switch (mpctx->stop_play) {
case AT_END_OF_FILE: end_event.reason = 0; break;
case PT_RESTART:
case PT_RELOAD_DEMUXER: end_event.reason = 1; break;
case PT_NEXT_ENTRY:
case PT_CURRENT_ENTRY:
case PT_STOP: end_event.reason = 2; break;
case PT_QUIT: end_event.reason = 3; break;
default: end_event.reason = -1; break;
};
mp_notify(mpctx, MPV_EVENT_END_FILE, &end_event);
}
// 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 < 0)
next = mpctx->playlist->first;
}
if (!next && mpctx->opts->loop_times >= 0) {
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--;
if (mpctx->opts->loop_times == 1)
mpctx->opts->loop_times = -1;
}
} 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;
}
if (!force && next && next->init_failed) {
// 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)
{
mp_input_set_main_thread(mpctx->input);
mpctx->quit_player_rc = EXIT_NONE;
for (;;) {
idle_loop(mpctx);
if (mpctx->stop_play == PT_QUIT)
break;
mpctx->error_playing = true;
play_current_file(mpctx);
if (mpctx->error_playing) {
if (!mpctx->quit_player_rc) {
mpctx->quit_player_rc = EXIT_NOTPLAYED;
} else if (mpctx->quit_player_rc == EXIT_PLAYED) {
mpctx->quit_player_rc = EXIT_SOMENOTPLAYED;
}
} else if (mpctx->quit_player_rc == EXIT_NOTPLAYED) {
mpctx->quit_player_rc = EXIT_SOMENOTPLAYED;
} else {
mpctx->quit_player_rc = EXIT_PLAYED;
}
if (mpctx->stop_play == PT_QUIT)
break;
if (!mpctx->stop_play || mpctx->stop_play == AT_END_OF_FILE)
mpctx->stop_play = PT_NEXT_ENTRY;
struct playlist_entry *new_entry = NULL;
if (mpctx->stop_play == PT_NEXT_ENTRY) {
new_entry = mp_next_file(mpctx, +1, false);
} else if (mpctx->stop_play == PT_CURRENT_ENTRY) {
new_entry = mpctx->playlist->current;
} else if (mpctx->stop_play == PT_RESTART) {
// The same as PT_CURRENT_ENTRY, unless we decide that the current
// playlist entry can be removed during playback.
new_entry = mpctx->playlist->current;
} else { // PT_STOP
playlist_clear(mpctx->playlist);
}
mpctx->playlist->current = new_entry;
mpctx->playlist->current_was_replaced = false;
mpctx->stop_play = 0;
if (!mpctx->playlist->current && !mpctx->opts->player_idle_mode)
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(playlist_entry_to_index(mpctx->playlist, e) >= 0);
mpctx->playlist->current = e;
mpctx->playlist->current_was_replaced = false;
mpctx->stop_play = PT_CURRENT_ENTRY;
}
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