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commands: add pt_clear command to clear playlist

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This deletes all playlist elements, except the currently active
playlist entry.

NOTE: this doesn't remove parent nodes in the case when we really have
a play tree (as opposed to a play list). Apparently this doesn't cause
any harm.
This commit is contained in:
wm4 2012-02-10 19:03:24 +01:00
parent 70bf672096
commit 489f61aa4c
3 changed files with 29 additions and 0 deletions
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27
command.c
View File

@ -21,6 +21,7 @@
#include <unistd.h>
#include <string.h>
#include <stdbool.h>
#include <assert.h>
#include "config.h"
#include "talloc.h"
@ -2787,6 +2788,28 @@ static void remove_subtitle_range(MPContext *mpctx, int start, int count)
}
}
static void do_clear_pt(struct play_tree *node, struct play_tree *exclude)
{
while (node) {
do_clear_pt(node->child, exclude);
struct play_tree *next = node->next;
// do not delete root node, or nodes that could lead to "exclude" node
if (node->parent && !node->child && node != exclude)
play_tree_remove(node, 1, 1);
node = next;
}
}
static void clear_play_tree(MPContext *mpctx)
{
struct play_tree *exclude = NULL;
if (mpctx->playtree_iter) {
assert(mpctx->playtree == mpctx->playtree_iter->root);
exclude = mpctx->playtree_iter->tree;
}
do_clear_pt(mpctx->playtree, exclude);
}
void run_command(MPContext *mpctx, mp_cmd_t *cmd)
{
struct MPOpts *opts = &mpctx->opts;
@ -3116,6 +3139,10 @@ void run_command(MPContext *mpctx, mp_cmd_t *cmd)
break;
}
case MP_CMD_PLAY_TREE_CLEAR:
clear_play_tree(mpctx);
break;
case MP_CMD_STOP:
// Go back to the starting point.
while (play_tree_iter_up_step(mpctx->playtree_iter, 0, 1) !=

1
input/input.c
View File

@ -184,6 +184,7 @@ static const mp_cmd_t mp_cmds[] = {
{ MP_CMD_SWITCH_VSYNC, "switch_vsync", 0, { {MP_CMD_ARG_INT} } },
{ MP_CMD_LOADFILE, "loadfile", 1, { {MP_CMD_ARG_STRING}, {MP_CMD_ARG_INT} } },
{ MP_CMD_LOADLIST, "loadlist", 1, { {MP_CMD_ARG_STRING}, {MP_CMD_ARG_INT} } },
{ MP_CMD_PLAY_TREE_CLEAR, "pt_clear", 0 },
{ MP_CMD_RUN, "run", 1, { {MP_CMD_ARG_STRING} } },
{ MP_CMD_CAPTURING, "capturing", 0 },
{ MP_CMD_VF_CHANGE_RECTANGLE, "change_rectangle", 2, { {MP_CMD_ARG_INT}, {MP_CMD_ARG_INT} } },

1
input/input.h
View File

@ -50,6 +50,7 @@ enum mp_command_type {
MP_CMD_MUTE,
MP_CMD_LOADFILE,
MP_CMD_LOADLIST,
MP_CMD_PLAY_TREE_CLEAR,
MP_CMD_VF_CHANGE_RECTANGLE,
MP_CMD_GAMMA,
MP_CMD_SUB_VISIBILITY,