[vlc-devel] [PATCH 3/6] player: add vlc_player_input_GetSelectedTrackStringIds

[Thomas Guillem]

It returns the list of selected tracks that can be saved to later usage.
---
 src/player/input.c  | 33 +++++++++++++++++++++++++++++++++
 src/player/player.h |  4 ++++
 2 files changed, 37 insertions(+)

diff --git a/src/player/input.c b/src/player/input.c
index 7fccd70b91e..59c2d5655ec 100644
--- a/src/player/input.c
+++ b/src/player/input.c
@@ -24,6 +24,7 @@
 
 #include <vlc_common.h>
 #include <vlc_interface.h>
+#include <vlc_memstream.h>
 #include "player.h"
 
 struct vlc_player_track_priv *
@@ -842,6 +843,38 @@ vlc_player_input_SelectTracksByStringIds(struct vlc_player_input *input,
     input_SetEsCatIds(input->thread, cat, str_ids);
 }
 
+char *
+vlc_player_input_GetSelectedTrackStringIds(struct vlc_player_input *input,
+                                           enum es_format_category_e cat)
+{
+    vlc_player_track_vector *vec = vlc_player_input_GetTrackVector(input, cat);
+    assert(vec);
+    bool first_track = true;
+    struct vlc_memstream ms;
+
+    struct vlc_player_track_priv* t;
+    vlc_vector_foreach(t, vec)
+    {
+        if (t->selected_by_user && vlc_es_id_IsStrIdStable(t->t.es_id))
+        {
+            if (first_track)
+            {
+                int ret = vlc_memstream_open(&ms);
+                if (ret != 0)
+                    return NULL;
+            }
+            const char *str_id = vlc_es_id_GetStrId(t->t.es_id);
+            assert(str_id);
+
+            if (!first_track)
+                vlc_memstream_putc(&ms, ',');
+            vlc_memstream_puts(&ms, str_id);
+            first_track = false;
+        }
+    }
+    return !first_track && vlc_memstream_close(&ms) == 0 ? ms.ptr : NULL;
+}
+
 struct vlc_player_input *
 vlc_player_input_New(vlc_player_t *player, input_item_t *item)
 {
diff --git a/src/player/player.h b/src/player/player.h
index 8148d6cb62a..2583ab84363 100644
--- a/src/player/player.h
+++ b/src/player/player.h
@@ -404,6 +404,10 @@ vlc_player_input_SelectTracksByStringIds(struct vlc_player_input *input,
                                          enum es_format_category_e cat,
                                          const char *str_ids);
 
+char *
+vlc_player_input_GetSelectedTrackStringIds(struct vlc_player_input *input,
+                                           enum es_format_category_e cat);
+
 vlc_tick_t
 vlc_player_input_GetTime(struct vlc_player_input *input);
 
-- 
2.20.1