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player: simplify edition switching 

The player fully restarts playback when the edition or disk title is
changed. Before this, the player tried to reinitialized playback
partially. For example, it did not print a new "Playing: <file>"
message, and did not send playback end to libmpv users (scripts or
applications).

This playback restart code was a bit messy and could have unforeseen
interactions with various state. There have been bugs before. Since it's
a mostly cosmetic thing for an obscure feature, just change it to a full
restart. This works well, though since it may have consequences for
scripts or client API users, mention it in interface-changes.rst.
This commit is contained in:
wm4 2018-05-19 12:37:37 +02:00
parent d7ca95c3ea
commit 562d8e6d32
4 changed files with 4 additions and 13 deletions
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2
DOCS/interface-changes.rst
View File

@ -109,6 +109,8 @@ Interface changes
- mpv_command_node() and mp.command_native() now support named arguments
(see manpage). If you want to use them, use a new version of the manpage
as reference, which lists the definitive names.
- edition and disc title switching will now fully reload playback (may have
consequences for scripts, client API, or when using file-local options)
--- mpv 0.28.0 ---
- rename --hwdec=mediacodec option to mediacodec-copy, to reflect
conventions followed by other hardware video decoding APIs

4
player/command.c
View File

@ -928,7 +928,7 @@ static int mp_property_disc_title(void *ctx, struct m_property *prop,
if (demux_stream_control(d, STREAM_CTRL_SET_CURRENT_TITLE, &title) < 0)
return M_PROPERTY_NOT_IMPLEMENTED;
if (!mpctx->stop_play)
mpctx->stop_play = PT_RELOAD_FILE;
mpctx->stop_play = PT_CURRENT_ENTRY;
return M_PROPERTY_OK;
}
return M_PROPERTY_NOT_IMPLEMENTED;
@ -1145,7 +1145,7 @@ static int mp_property_edition(void *ctx, struct m_property *prop,
if (edition != demuxer->edition) {
mpctx->opts->edition_id = edition;
if (!mpctx->stop_play)
mpctx->stop_play = PT_RELOAD_FILE;
mpctx->stop_play = PT_CURRENT_ENTRY;
mp_wakeup_core(mpctx);
break; // make it accessible to the demuxer via option change notify
}

1
player/core.h
View File

@ -43,7 +43,6 @@ enum stop_play_reason {
PT_NEXT_ENTRY, // prepare to play next entry in playlist
PT_CURRENT_ENTRY, // prepare to play mpctx->playlist->current
PT_STOP, // stop playback, clear playlist
PT_RELOAD_FILE, // restart playback
PT_QUIT, // stop playback, quit player
PT_ERROR, // play next playlist entry (due to an error)
};

10
player/loadfile.c
View File

@ -1344,10 +1344,6 @@ static void play_current_file(struct MPContext *mpctx)
MP_INFO(mpctx, "Playing: %s\n", mpctx->filename);
reopen_file:
reset_playback_state(mpctx);
assert(mpctx->demuxer == NULL);
process_hooks(mpctx, "on_load");
@ -1537,12 +1533,6 @@ terminate_playback:
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);
TA_FREEP(&mpctx->filter_root);