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8125252399
mpv/mpvcore/player/loadfile.c
wm4 8125252399 audio: don't let ao_lavc access frontend internals, change gapless audio 
ao_lavc.c accesses ao->buffer, which I consider internal. The access was
done in ao_lavc.c/uninit(), which tried to get the left-over audio in
order to write the last (possibly partial) audio frame. The play()
function didn't accept partial frames, because the AOPLAY_FINAL_CHUNK
flag was not correctly set, and handling it otherwise would require an
internal FIFO.

Fix this by making sure that with gapless audio (used with encoding),
the AOPLAY_FINAL_CHUNK is set only once, instead when each file ends.
Basically, move the hack in ao_lavc's uninit to uninit_player.

One thing can not be entirely correctly handled: if gapless audio is
active, we don't know really whether the AO is closed because the file
ended playing (i.e. we want to send the buffered remainder of the audio
to the AO), or whether the user is quitting the player. (The stop_play
flag is overwritten, fixing that is perhaps not worth it.) Handle this
by adding additional code to drain the AO and the buffers when playback
is quit (see play_current_file() change).

Test case: mpv avdevice://lavfi:sine=441 avdevice://lavfi:sine=441 -length 0.2267  -gapless-audio
2013-11-08 20:00:58 +01:00

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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 <inttypes.h>
#include <assert.h>
#include <libavutil/avutil.h>
#include "config.h"
#include "talloc.h"
#include "osdep/getch2.h"
#include "osdep/io.h"
#include "osdep/timer.h"
#include "mpvcore/mp_msg.h"
#include "mpvcore/path.h"
#include "mpvcore/m_config.h"
#include "mpvcore/parser-cfg.h"
#include "mpvcore/playlist.h"
#include "mpvcore/options.h"
#include "mpvcore/m_property.h"
#include "mpvcore/mp_common.h"
#include "mpvcore/resolve.h"
#include "mpvcore/encode.h"
#include "mpvcore/input/input.h"
#include "audio/mixer.h"
#include "audio/decode/dec_audio.h"
#include "audio/out/ao.h"
#include "demux/demux.h"
#include "stream/stream.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 "mp_core.h"
#include "command.h"
#if HAVE_DVBIN
#include "stream/dvbin.h"
#endif
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);
if (mpctx->sh_audio)
uninit_audio(mpctx->sh_audio);
cleanup_demux_stream(mpctx, STREAM_AUDIO);
}
if (mask & INITIALIZED_SUB) {
mpctx->initialized_flags &= ~INITIALIZED_SUB;
if (mpctx->sh_sub)
sub_reset(mpctx->sh_sub->dec_sub);
cleanup_demux_stream(mpctx, STREAM_SUB);
mpctx->osd->dec_sub = NULL;
reset_subtitles(mpctx);
}
if (mask & INITIALIZED_LIBASS) {
mpctx->initialized_flags &= ~INITIALIZED_LIBASS;
#if HAVE_LIBASS
if (mpctx->osd->ass_renderer)
ass_renderer_done(mpctx->osd->ass_renderer);
mpctx->osd->ass_renderer = NULL;
ass_clear_fonts(mpctx->ass_library);
#endif
}
if (mask & INITIALIZED_VCODEC) {
mpctx->initialized_flags &= ~INITIALIZED_VCODEC;
if (mpctx->sh_video)
uninit_video(mpctx->sh_video);
cleanup_demux_stream(mpctx, STREAM_VIDEO);
mpctx->sync_audio_to_video = false;
}
if (mask & INITIALIZED_DEMUXER) {
mpctx->initialized_flags &= ~INITIALIZED_DEMUXER;
for (int i = 0; i < mpctx->num_tracks; i++) {
talloc_free(mpctx->tracks[i]);
}
mpctx->num_tracks = 0;
for (int t = 0; t < STREAM_TYPE_COUNT; t++)
mpctx->current_track[t] = NULL;
assert(!mpctx->sh_video && !mpctx->sh_audio && !mpctx->sh_sub);
mpctx->master_demuxer = NULL;
for (int i = 0; i < mpctx->num_sources; i++) {
uninit_subs(mpctx->sources[i]);
struct demuxer *demuxer = mpctx->sources[i];
if (demuxer->stream != mpctx->stream)
free_stream(demuxer->stream);
free_demuxer(demuxer);
}
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;
}
// Must be after libvo uninit, as few vo drivers (svgalib) have tty code.
if (mask & INITIALIZED_GETCH2) {
mpctx->initialized_flags &= ~INITIALIZED_GETCH2;
MP_DBG(mpctx, "\n[[[uninit getch2]]]\n");
// restore terminal:
getch2_disable();
}
if (mask & INITIALIZED_AO) {
struct ao *ao = mpctx->ao;
mpctx->initialized_flags &= ~INITIALIZED_AO;
if (ao) {
bool drain = false;
// Note: with gapless_audio, stop_play is not correctly set
if (opts->gapless_audio || mpctx->stop_play == AT_END_OF_FILE) {
drain = true;
int len = ao->buffer_playable_size;
assert(len <= ao->buffer.len);
int played = ao_play(ao, ao->buffer.start, len,
AOPLAY_FINAL_CHUNK);
if (played < len)
MP_WARN(ao, "Audio output truncated at end.\n");
}
ao_uninit(ao, drain);
}
mpctx->ao = NULL;
}
if (mask & INITIALIZED_PLAYBACK)
mpctx->initialized_flags &= ~INITIALIZED_PLAYBACK;
}
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 = "?";
const char *iid = NULL;
switch (t->type) {
case STREAM_VIDEO:
tname = "Video"; selopt = "vid"; langopt = NULL; iid = "VID";
break;
case STREAM_AUDIO:
tname = "Audio"; selopt = "aid"; langopt = "alang"; iid = "AID";
break;
case STREAM_SUB:
tname = "Subs"; selopt = "sid"; langopt = "slang"; iid = "SID";
break;
}
MP_INFO(mpctx, "[stream] %-5s %3s",
tname, mpctx->current_track[t->type] == t ? "(+)" : "");
MP_INFO(mpctx, " --%s=%d", selopt, t->user_tid);
if (t->lang && langopt)
MP_INFO(mpctx, " --%s=%s", langopt, t->lang);
if (t->default_track)
MP_INFO(mpctx, " (*)");
if (t->attached_picture)
MP_INFO(mpctx, " [P]");
if (t->title)
MP_INFO(mpctx, " '%s'", t->title);
const char *codec = s ? s->codec : NULL;
MP_INFO(mpctx, " (%s)", codec ? codec : "<unknown>");
if (t->is_external)
MP_INFO(mpctx, " (external)");
MP_INFO(mpctx, "\n");
// legacy compatibility
if (!iid)
return;
int id = t->user_tid;
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_%s_ID=%d\n", iid, id);
if (t->title)
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_%s_%d_NAME=%s\n", iid, id, t->title);
if (t->lang)
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_%s_%d_LANG=%s\n", iid, id, t->lang);
}
static void print_file_properties(struct MPContext *mpctx)
{
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_FILENAME=%s\n", mpctx->filename);
if (mpctx->sh_video) {
/* Assume FOURCC if all bytes >= 0x20 (' ') */
if (mpctx->sh_video->format >= 0x20202020)
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VIDEO_FORMAT=%.4s\n", (char *)&mpctx->sh_video->format);
else
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VIDEO_FORMAT=0x%08X\n", mpctx->sh_video->format);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VIDEO_BITRATE=%d\n", mpctx->sh_video->i_bps * 8);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VIDEO_WIDTH=%d\n", mpctx->sh_video->disp_w);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VIDEO_HEIGHT=%d\n", mpctx->sh_video->disp_h);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VIDEO_FPS=%5.3f\n", mpctx->sh_video->fps);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VIDEO_ASPECT=%1.4f\n", mpctx->sh_video->aspect);
}
if (mpctx->sh_audio) {
/* Assume FOURCC if all bytes >= 0x20 (' ') */
if (mpctx->sh_audio->format >= 0x20202020)
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_AUDIO_FORMAT=%.4s\n", (char *)&mpctx->sh_audio->format);
else
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_AUDIO_FORMAT=%d\n", mpctx->sh_audio->format);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_AUDIO_BITRATE=%d\n", mpctx->sh_audio->i_bps * 8);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_AUDIO_RATE=%d\n", mpctx->sh_audio->samplerate);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_AUDIO_NCH=%d\n", mpctx->sh_audio->channels.num);
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_LENGTH=%.2f\n", get_time_length(mpctx));
int chapter_count = get_chapter_count(mpctx);
if (chapter_count >= 0) {
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTERS=%d\n", chapter_count);
for (int i = 0; i < chapter_count; i++) {
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_ID=%d\n", i);
// print in milliseconds
double time = chapter_start_time(mpctx, i) * 1000.0;
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_START=%"PRId64"\n",
i, (int64_t)(time < 0 ? -1 : time));
char *name = chapter_name(mpctx, i);
if (name) {
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_CHAPTER_%d_NAME=%s\n", i,
name);
talloc_free(name);
}
}
}
struct demuxer *demuxer = mpctx->master_demuxer;
if (demuxer->num_editions > 1)
MP_INFO(mpctx, "Playing edition %d of %d (--edition=%d).\n",
demuxer->edition + 1, demuxer->num_editions, demuxer->edition);
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]);
}
}
static void set_demux_field(struct MPContext *mpctx, enum stream_type type,
struct sh_stream *s)
{
mpctx->sh[type] = s;
// redundant fields for convenience access
switch(type) {
case STREAM_VIDEO: mpctx->sh_video = s ? s->video : NULL; break;
case STREAM_AUDIO: mpctx->sh_audio = s ? s->audio : NULL; break;
case STREAM_SUB: mpctx->sh_sub = s ? s->sub : NULL; break;
}
}
void init_demux_stream(struct MPContext *mpctx, enum stream_type type)
{
struct track *track = mpctx->current_track[type];
set_demux_field(mpctx, type, track ? track->stream : NULL);
struct sh_stream *stream = mpctx->sh[type];
if (stream) {
demuxer_switch_track(stream->demuxer, type, stream);
if (track->is_external) {
double pts = get_main_demux_pts(mpctx);
demux_seek(stream->demuxer, pts, SEEK_ABSOLUTE);
}
}
}
void cleanup_demux_stream(struct MPContext *mpctx, enum stream_type type)
{
struct sh_stream *stream = mpctx->sh[type];
if (stream)
demuxer_switch_track(stream->demuxer, type, NULL);
set_demux_field(mpctx, type, NULL);
}
// Switch the demuxers to current track selection. This is possibly important
// for intialization: if something reads packets from the demuxer (like at least
// reinit_audio_chain does, or when seeking), packets from the other streams
// should be queued instead of discarded. So all streams should be enabled
// before the first initialization function is called.
static void preselect_demux_streams(struct MPContext *mpctx)
{
// Disable all streams, just to be sure no unwanted streams are selected.
for (int n = 0; n < mpctx->num_sources; n++) {
for (int type = 0; type < STREAM_TYPE_COUNT; type++) {
struct track *track = mpctx->current_track[type];
if (!(track && track->demuxer == mpctx->sources[n] &&
demuxer_stream_is_selected(track->demuxer, track->stream)))
demuxer_switch_track(mpctx->sources[n], type, NULL);
}
}
for (int type = 0; type < STREAM_TYPE_COUNT; type++) {
struct track *track = mpctx->current_track[type];
if (track && track->stream)
demuxer_switch_track(track->stream->demuxer, type, track->stream);
}
}
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->sh_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);
mpctx->stop_play = orig_stop_play;
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);
}
}
preselect_demux_streams(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;
}
// Map stream number (as used by libdvdread) to MPEG IDs (as used by demuxer).
static int map_id_from_demuxer(struct demuxer *d, enum stream_type type, int id)
{
if (d->stream->uncached_type == STREAMTYPE_DVD && type == STREAM_SUB)
id = id & 0x1F;
return id;
}
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 sh_stream *stream,
bool under_timeline)
{
for (int i = 0; i < mpctx->num_tracks; i++) {
struct track *track = mpctx->tracks[i];
if (track->stream == stream)
return track;
// DVD subtitle track that was added later
if (stream->type == STREAM_SUB && track->type == STREAM_SUB &&
map_id_from_demuxer(stream->demuxer, stream->type,
stream->demuxer_id) == track->demuxer_id
&& !track->stream)
{
track->stream = stream;
track->demuxer_id = stream->demuxer_id;
// Initialize lazily selected track
bool selected = track == mpctx->current_track[STREAM_SUB];
demuxer_select_track(track->demuxer, stream, selected);
if (selected)
reinit_subs(mpctx);
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 = stream->demuxer,
.stream = stream,
};
MP_TARRAY_APPEND(mpctx, mpctx->tracks, mpctx->num_tracks, track);
if (stream->type == STREAM_SUB)
track->preloaded = !!stream->sub->track;
// Needed for DVD and Blu-ray.
if (!track->lang) {
struct stream_lang_req req = {
.type = track->type,
.id = map_id_from_demuxer(track->demuxer, track->type,
track->demuxer_id)
};
stream_control(track->demuxer->stream, STREAM_CTRL_GET_LANG, &req);
if (req.name[0])
track->lang = talloc_strdup(track, req.name);
}
demuxer_select_track(track->demuxer, stream, false);
mp_notify(mpctx, MP_EVENT_TRACKS_CHANGED, NULL);
return track;
}
void add_demuxer_tracks(struct MPContext *mpctx, struct demuxer *demuxer)
{
for (int n = 0; n < demuxer->num_streams; n++)
add_stream_track(mpctx, demuxer->streams[n], !!mpctx->timeline);
}
static void add_dvd_tracks(struct MPContext *mpctx)
{
#if HAVE_DVDREAD
struct demuxer *demuxer = mpctx->demuxer;
struct stream *stream = demuxer->stream;
struct stream_dvd_info_req info;
if (stream_control(stream, STREAM_CTRL_GET_DVD_INFO, &info) > 0) {
for (int n = 0; n < info.num_subs; n++) {
struct track *track = talloc_ptrtype(NULL, track);
*track = (struct track) {
.type = STREAM_SUB,
.user_tid = find_new_tid(mpctx, STREAM_SUB),
.demuxer_id = n,
.demuxer = mpctx->demuxer,
};
MP_TARRAY_APPEND(mpctx, mpctx->tracks, mpctx->num_tracks, track);
struct stream_lang_req req = {.type = STREAM_SUB, .id = n};
stream_control(stream, STREAM_CTRL_GET_LANG, &req);
track->lang = talloc_strdup(track, req.name);
mp_notify(mpctx, MP_EVENT_TRACKS_CHANGED, NULL);
}
}
demuxer_enable_autoselect(demuxer);
#endif
}
// 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
* 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)
{
if (t1->is_external != t2->is_external)
return t1->is_external;
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
&& !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;
talloc_free(mpctx->track_layout_hash);
mpctx->track_layout_hash = NULL;
}
talloc_free(h);
}
void mp_switch_track(struct MPContext *mpctx, enum stream_type type,
struct track *track)
{
assert(!track || track->type == type);
struct track *current = mpctx->current_track[type];
if (track == current)
return;
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) {
uninit_player(mpctx, INITIALIZED_AO | INITIALIZED_ACODEC);
} else if (type == STREAM_SUB) {
uninit_player(mpctx, INITIALIZED_SUB);
}
mpctx->current_track[type] = track;
int user_tid = track ? track->user_tid : -2;
if (type == STREAM_VIDEO) {
mpctx->opts->video_id = user_tid;
reinit_video_chain(mpctx);
mp_notify_property(mpctx, "vid");
} else if (type == STREAM_AUDIO) {
mpctx->opts->audio_id = user_tid;
reinit_audio_chain(mpctx);
mp_notify_property(mpctx, "aid");
} else if (type == STREAM_SUB) {
mpctx->opts->sub_id = user_tid;
reinit_subs(mpctx);
mp_notify_property(mpctx, "sid");
}
talloc_free(mpctx->track_layout_hash);
mpctx->track_layout_hash = talloc_steal(mpctx, track_layout_hash(mpctx));
}
struct track *mp_track_by_tid(struct MPContext *mpctx, enum stream_type type,
int tid)
{
if (tid == -1)
return mpctx->current_track[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;
if (mpctx->current_track[track->type] == track) {
mp_switch_track(mpctx, track->type, NULL);
if (mpctx->current_track[track->type] == track)
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, MP_EVENT_TRACKS_CHANGED, NULL);
return true;
}
static void open_subtitles_from_options(struct MPContext *mpctx)
{
// after reading video params we should load subtitles because
// we know fps so now we can adjust subtitle time to ~6 seconds AST
// check .sub
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) { // auto load sub file ...
char **tmp = find_text_subtitles(mpctx->opts, mpctx->filename);
int nsub = MP_TALLOC_ELEMS(tmp);
for (int i = 0; i < nsub; i++) {
char *filename = tmp[i];
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;
skip:;
}
talloc_free(tmp);
}
}
static struct track *open_external_file(struct MPContext *mpctx, char *filename,
char *demuxer_name, int stream_cache,
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->opts);
if (!stream)
goto err_out;
stream_enable_cache_percent(&stream, stream_cache,
opts->stream_cache_def_size,
opts->stream_cache_min_percent,
opts->stream_cache_seek_min_percent);
struct demuxer_params params = {
.ass_library = mpctx->ass_library, // demux_libass requires it
};
struct demuxer *demuxer =
demux_open(stream, demuxer_name, &params, mpctx->opts);
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, sh, false);
t->is_external = true;
t->title = talloc_strdup(t, 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;
open_external_file(mpctx, opts->audio_stream, opts->audio_demuxer_name,
opts->audio_stream_cache, 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, 0,
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, 0, STREAM_SUB);
talloc_free(s);
if (t)
t->lang = talloc_strdup(t, sub->lang);
}
}
static bool attachment_is_font(struct demux_attachment *att)
{
if (!att->name || !att->type || !att->data || !att->data_size)
return false;
// match against MIME types
if (strcmp(att->type, "application/x-truetype-font") == 0
|| strcmp(att->type, "application/x-font") == 0)
return true;
// fallback: match against file extension
if (strlen(att->name) > 4) {
char *ext = att->name + strlen(att->name) - 4;
if (strcasecmp(ext, ".ttf") == 0 || strcasecmp(ext, ".ttc") == 0
|| strcasecmp(ext, ".otf") == 0)
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(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->osd->ass_renderer);
mpctx->osd->ass_renderer = ass_renderer_init(mpctx->osd->ass_library);
if (mpctx->osd->ass_renderer) {
mp_ass_configure_fonts(mpctx->osd->ass_renderer,
mpctx->opts->sub_text_style);
}
mpctx->initialized_flags |= INITIALIZED_LIBASS;
#endif
}
static struct mp_resolve_result *resolve_url(const char *filename,
struct MPOpts *opts)
{
if (!mp_is_url(bstr0(filename)))
return NULL;
#if HAVE_LIBQUVI4 || HAVE_LIBQUVI9
return mp_resolve_quvi(filename, opts);
#else
return NULL;
#endif
}
static void print_resolve_contents(struct mp_log *log,
struct mp_resolve_result *res)
{
mp_msg_log(log, MSGL_V, "Resolve:\n");
mp_msg_log(log, MSGL_V, " title: %s\n", res->title);
mp_msg_log(log, MSGL_V, " url: %s\n", res->url);
for (int n = 0; n < res->num_srcs; n++) {
mp_msg_log(log, MSGL_V, " source %d:\n", n);
if (res->srcs[n]->url)
mp_msg_log(log, MSGL_V, " url: %s\n", res->srcs[n]->url);
if (res->srcs[n]->encid)
mp_msg_log(log, MSGL_V, " encid: %s\n", res->srcs[n]->encid);
}
for (int n = 0; n < res->num_subs; n++) {
mp_msg_log(log, MSGL_V, " subtitle %d:\n", n);
if (res->subs[n]->url)
mp_msg_log(log, MSGL_V, " url: %s\n", res->subs[n]->url);
if (res->subs[n]->lang)
mp_msg_log(log, MSGL_V, " lang: %s\n", res->subs[n]->lang);
if (res->subs[n]->data) {
mp_msg_log(log, MSGL_V, " data: %zd bytes\n",
strlen(res->subs[n]->data));
}
}
if (res->playlist) {
mp_msg_log(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);
}
}
/* 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->id))
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;
double playback_start = -1e100;
mpctx->initialized_flags |= INITIALIZED_PLAYBACK;
mp_notify(mpctx, MP_EVENT_START_FILE, NULL);
mp_flush_events(mpctx);
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;
#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_per_protocol_config(mpctx->mconfig, mpctx->filename);
mp_load_per_extension_config(mpctx->mconfig, mpctx->filename);
mp_load_per_file_config(mpctx->mconfig, mpctx->filename, opts->use_filedir_conf);
if (opts->vo.video_driver_list)
mp_load_per_output_config(mpctx->mconfig, "vo.",
opts->vo.video_driver_list[0].name);
if (opts->audio_driver_list)
mp_load_per_output_config(mpctx->mconfig, "ao.",
opts->audio_driver_list[0].name);
if (opts->position_resume)
mp_load_playback_resume(mpctx->mconfig, mpctx->filename);
load_per_file_options(mpctx->mconfig, mpctx->playlist->current->params,
mpctx->playlist->current->num_params);
// We must enable getch2 here to be able to interrupt network connection
// or cache filling
if (opts->consolecontrols && !opts->slave_mode) {
if (mpctx->initialized_flags & INITIALIZED_GETCH2)
MP_WARN(mpctx, "WARNING: getch2_init called twice!\n");
else
getch2_enable(); // prepare stdin for hotkeys...
mpctx->initialized_flags |= INITIALIZED_GETCH2;
MP_DBG(mpctx, "\n[[[init getch2]]]\n");
}
#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->sh_audio == NULL);
assert(mpctx->sh_video == NULL);
assert(mpctx->sh_sub == NULL);
char *stream_filename = mpctx->filename;
mpctx->resolve_result = resolve_url(stream_filename, opts);
if (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, opts);
if (!mpctx->stream) { // error...
demux_was_interrupted(mpctx);
goto terminate_playback;
}
mpctx->initialized_flags |= INITIALIZED_STREAM;
mpctx->stream->start_pos += opts->seek_to_byte;
if (opts->stream_dump && opts->stream_dump[0]) {
stream_dump(mpctx);
goto terminate_playback;
}
// CACHE2: initial prefill: 20% later: 5% (should be set by -cacheopts)
int res = stream_enable_cache_percent(&mpctx->stream,
opts->stream_cache_size,
opts->stream_cache_def_size,
opts->stream_cache_min_percent,
opts->stream_cache_seek_min_percent);
if (res == 0)
if (demux_was_interrupted(mpctx))
goto terminate_playback;
stream_set_capture_file(mpctx->stream, opts->stream_capture);
#if HAVE_DVBIN
goto_reopen_demuxer: ;
#endif
//============ Open DEMUXERS --- DETECT file type =======================
mpctx->audio_delay = opts->audio_delay;
mpctx->demuxer = demux_open(mpctx->stream, opts->demuxer_name, NULL, opts);
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_edl_timeline(mpctx);
if (mpctx->demuxer->type == DEMUXER_TYPE_CUE)
build_cue_timeline(mpctx);
print_timeline(mpctx);
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.
for (int n = 0; n < mpctx->num_timeline_parts; n++) {
if (mpctx->timeline[n].source == mpctx->demuxer)
goto main_is_ok;
}
mpctx->demuxer = mpctx->timeline[0].source;
main_is_ok: ;
}
add_dvd_tracks(mpctx);
add_demuxer_tracks(mpctx, mpctx->demuxer);
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[STREAM_VIDEO] =
select_track(mpctx, STREAM_VIDEO, mpctx->opts->video_id, NULL);
mpctx->current_track[STREAM_AUDIO] =
select_track(mpctx, STREAM_AUDIO, mpctx->opts->audio_id,
mpctx->opts->audio_lang);
mpctx->current_track[STREAM_SUB] =
select_track(mpctx, STREAM_SUB, mpctx->opts->sub_id,
mpctx->opts->sub_lang);
demux_info_print(mpctx->master_demuxer);
print_file_properties(mpctx);
preselect_demux_streams(mpctx);
#if HAVE_ENCODING
if (mpctx->encode_lavc_ctx && mpctx->current_track[STREAM_VIDEO])
encode_lavc_expect_stream(mpctx->encode_lavc_ctx, AVMEDIA_TYPE_VIDEO);
if (mpctx->encode_lavc_ctx && mpctx->current_track[STREAM_AUDIO])
encode_lavc_expect_stream(mpctx->encode_lavc_ctx, AVMEDIA_TYPE_AUDIO);
#endif
reinit_video_chain(mpctx);
reinit_audio_chain(mpctx);
reinit_subs(mpctx);
//================ SETUP STREAMS ==========================
if (opts->force_fps && mpctx->sh_video) {
mpctx->sh_video->fps = opts->force_fps;
MP_INFO(mpctx, "FPS forced to be %5.3f.\n", mpctx->sh_video->fps);
}
//==================== START PLAYING =======================
if (!mpctx->sh_video && !mpctx->sh_audio) {
MP_FATAL(mpctx, "No video or audio streams selected.\n");
#if HAVE_DVBIN
if (mpctx->stream->type == STREAMTYPE_DVB) {
int dir;
int v = mpctx->last_dvb_step;
if (v > 0)
dir = DVB_CHANNEL_HIGHER;
else
dir = DVB_CHANNEL_LOWER;
if (dvb_step_channel(mpctx->stream, dir)) {
mpctx->stop_play = PT_NEXT_ENTRY;
mpctx->dvbin_reopen = 1;
}
}
#endif
goto terminate_playback;
}
MP_VERBOSE(mpctx, "Starting playback...\n");
mpctx->drop_frame_cnt = 0;
mpctx->dropped_frames = 0;
mpctx->max_frames = opts->play_frames;
if (mpctx->max_frames == 0) {
mpctx->stop_play = PT_NEXT_ENTRY;
goto terminate_playback;
}
mpctx->time_frame = 0;
mpctx->drop_message_shown = 0;
mpctx->restart_playback = true;
mpctx->video_pts = 0;
mpctx->last_vo_pts = MP_NOPTS_VALUE;
mpctx->last_seek_pts = 0;
mpctx->playback_pts = MP_NOPTS_VALUE;
mpctx->hrseek_active = false;
mpctx->hrseek_framedrop = false;
mpctx->step_frames = 0;
mpctx->backstep_active = false;
mpctx->total_avsync_change = 0;
mpctx->last_chapter_seek = -2;
mpctx->playing_msg_shown = false;
mpctx->paused = false;
mpctx->paused_for_cache = 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, -1);
if (startpos != -1 || mpctx->timeline) {
queue_seek(mpctx, MPSEEK_ABSOLUTE, startpos, 0);
execute_queued_seek(mpctx);
}
if (startpos == -1 && mpctx->resolve_result &&
mpctx->resolve_result->start_time > 0)
{
queue_seek(mpctx, MPSEEK_ABSOLUTE, mpctx->resolve_result->start_time, 0);
execute_queued_seek(mpctx);
}
if (opts->chapterrange[0] > 0) {
if (mp_seek_chapter(mpctx, opts->chapterrange[0] - 1))
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 = false;
while (!mpctx->stop_play)
run_playloop(mpctx);
MP_VERBOSE(mpctx, "EOF code: %d \n", mpctx->stop_play);
#if HAVE_DVBIN
if (mpctx->dvbin_reopen) {
mpctx->stop_play = 0;
uninit_player(mpctx, INITIALIZED_ALL - (INITIALIZED_STREAM | INITIALIZED_GETCH2 | (opts->fixed_vo ? INITIALIZED_VO : 0)));
mpctx->dvbin_reopen = 0;
goto goto_reopen_demuxer;
}
#endif
terminate_playback: // don't jump here after ao/vo/getch initialization!
if (mpctx->stop_play == KEEP_PLAYING)
mpctx->stop_play = AT_END_OF_FILE;
// Drop audio left in the buffers
if (mpctx->stop_play != AT_END_OF_FILE && mpctx->ao) {
mpctx->ao->buffer_playable_size = 0;
mpctx->ao->buffer.len = 0;
ao_reset(mpctx->ao);
}
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;
talloc_free(mpctx->resolve_result);
mpctx->resolve_result = NULL;
// 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, MP_EVENT_TRACKS_CHANGED, NULL);
mp_notify(mpctx, MP_EVENT_END_FILE, NULL);
mp_flush_events(mpctx);
}
// Determine the next file to play. Note that if this function returns non-NULL,
// it can have side-effects and mutate mpctx.
// direction: -1 (previous) or +1 (next)
// force: if true, don't skip playlist entries marked as failed
struct playlist_entry *mp_next_file(struct MPContext *mpctx, int direction,
bool force)
{
struct playlist_entry *next = playlist_get_next(mpctx->playlist, direction);
if (next && direction < 0 && !force) {
// 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)
{
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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