client API: add glue for making full use of mpv_command_node()

Until now, the return value was always MPV_FORMAT_NONE. Now a command
can actually set it. This will be used in one of the following commits.

4 files changed, 14 insertions, 10 deletions

diff --git a/player/client.c b/player/client.c
index 614d64205f..43c7c07c60 100644
--- a/player/client.c
+++ b/player/client.c
@@ -954,6 +954,7 @@ static int run_async(mpv_handle *ctx, void (*fn)(void *fn_data), void *fn_data)
 struct cmd_request {
     struct MPContext *mpctx;
     struct mp_cmd *cmd;
+    struct mpv_node *res;
     int status;
     struct mpv_handle *reply_ctx;
     uint64_t userdata;
@@ -962,7 +963,7 @@ struct cmd_request {
 static void cmd_fn(void *data)
 {
     struct cmd_request *req = data;
-    int r = run_command(req->mpctx, req->cmd);
+    int r = run_command(req->mpctx, req->cmd, req->res);
     req->status = r >= 0 ? 0 : MPV_ERROR_COMMAND;
     talloc_free(req->cmd);
     if (req->reply_ctx) {
@@ -971,7 +972,7 @@ static void cmd_fn(void *data)
     }
 }
 
-static int run_client_command(mpv_handle *ctx, struct mp_cmd *cmd)
+static int run_client_command(mpv_handle *ctx, struct mp_cmd *cmd, mpv_node *res)
 {
     if (!ctx->mpctx->initialized)
         return MPV_ERROR_UNINITIALIZED;
@@ -986,6 +987,7 @@ static int run_client_command(mpv_handle *ctx, struct mp_cmd *cmd)
     struct cmd_request req = {
         .mpctx = ctx->mpctx,
         .cmd = cmd,
+        .res = res,
     };
     run_locked(ctx, cmd_fn, &req);
     return req.status;
@@ -993,21 +995,22 @@ static int run_client_command(mpv_handle *ctx, struct mp_cmd *cmd)
 
 int mpv_command(mpv_handle *ctx, const char **args)
 {
-    return run_client_command(ctx, mp_input_parse_cmd_strv(ctx->log, args));
+    return run_client_command(ctx, mp_input_parse_cmd_strv(ctx->log, args), NULL);
 }
 
 int mpv_command_node(mpv_handle *ctx, mpv_node *args, mpv_node *result)
 {
-    int r = run_client_command(ctx, mp_input_parse_cmd_node(ctx->log, args));
+    struct mpv_node rn = {.format = MPV_FORMAT_NONE};
+    int r = run_client_command(ctx, mp_input_parse_cmd_node(ctx->log, args), &rn);
     if (result && r >= 0)
-        *result = (mpv_node){.format = MPV_FORMAT_NONE};
+        *result = rn;
     return r;
 }
 
 int mpv_command_string(mpv_handle *ctx, const char *args)
 {
     return run_client_command(ctx,
-        mp_input_parse_cmd(ctx->mpctx->input, bstr0((char*)args), ctx->name));
+        mp_input_parse_cmd(ctx->mpctx->input, bstr0((char*)args), ctx->name), NULL);
 }
 
 static int run_cmd_async(mpv_handle *ctx, uint64_t ud, struct mp_cmd *cmd)
diff --git a/player/command.c b/player/command.c
index f5621ceb01..376f2b6bed 100644
--- a/player/command.c
+++ b/player/command.c
@@ -4040,7 +4040,7 @@ static bool check_property_autorepeat(char *property,  struct MPContext *mpctx)
     return true;
 }
 
-int run_command(MPContext *mpctx, mp_cmd_t *cmd)
+int run_command(struct MPContext *mpctx, struct mp_cmd *cmd, struct mpv_node *res)
 {
     struct command_ctx *cmdctx = mpctx->command_ctx;
     struct MPOpts *opts = mpctx->opts;
@@ -4692,7 +4692,7 @@ int run_command(MPContext *mpctx, mp_cmd_t *cmd)
 
     case MP_CMD_COMMAND_LIST: {
         for (struct mp_cmd *sub = cmd->args[0].v.p; sub; sub = sub->queue_next)
-            run_command(mpctx, sub);
+            run_command(mpctx, sub, NULL);
         break;
     }
 
diff --git a/player/command.h b/player/command.h
index 1a36c79570..447e01c011 100644
--- a/player/command.h
+++ b/player/command.h
@@ -21,11 +21,12 @@
 struct MPContext;
 struct mp_cmd;
 struct mp_log;
+struct mpv_node;
 
 void command_init(struct MPContext *mpctx);
 void command_uninit(struct MPContext *mpctx);
 
-int run_command(struct MPContext *mpctx, struct mp_cmd *cmd);
+int run_command(struct MPContext *mpctx, struct mp_cmd *cmd, struct mpv_node *res);
 char *mp_property_expand_string(struct MPContext *mpctx, const char *str);
 char *mp_property_expand_escaped_string(struct MPContext *mpctx, const char *str);
 void property_print_help(struct mp_log *log);
diff --git a/player/playloop.c b/player/playloop.c
index 1f480cf3ba..1c10c3e962 100644
--- a/player/playloop.c
+++ b/player/playloop.c
@@ -67,7 +67,7 @@ void mp_process_input(struct MPContext *mpctx)
         mp_cmd_t *cmd = mp_input_read_cmd(mpctx->input);
         if (!cmd)
             break;
-        run_command(mpctx, cmd);
+        run_command(mpctx, cmd, NULL);
         mp_cmd_free(cmd);
         mp_dispatch_queue_process(mpctx->dispatch, 0);
     }