From c460258f5a85d8d65261b524f23a3608185e58e4 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Mon, 8 Jul 2013 20:34:26 +0200
Subject: command: add screenshot_to_file command

---
 core/screenshot.c | 96 +++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 68 insertions(+), 28 deletions(-)

(limited to 'core/screenshot.c')

diff --git a/core/screenshot.c b/core/screenshot.c
index 4f7a0dbcdd..6b07bce5a0 100644
--- a/core/screenshot.c
+++ b/core/screenshot.c
@@ -278,16 +278,12 @@ static void add_subs(struct MPContext *mpctx, struct mp_image *image)
                       OSD_DRAW_SUB_ONLY, image);
 }
 
-static void screenshot_save(struct MPContext *mpctx, struct mp_image *image,
-                            bool with_subs)
+static void screenshot_save(struct MPContext *mpctx, struct mp_image *image)
 {
     screenshot_ctx *ctx = mpctx->screenshot_ctx;
 
     struct image_writer_opts *opts = mpctx->opts.screenshot_image_opts;
 
-    if (with_subs)
-        add_subs(mpctx, image);
-
     char *filename = gen_fname(ctx, image_writer_file_ext(opts));
     if (filename) {
         screenshot_msg(ctx, SMSG_OK, "Screenshot: '%s'", filename);
@@ -295,30 +291,15 @@ static void screenshot_save(struct MPContext *mpctx, struct mp_image *image,
             screenshot_msg(ctx, SMSG_ERR, "Error writing screenshot!");
         talloc_free(filename);
     }
-
-    talloc_free(image);
 }
 
-void screenshot_request(struct MPContext *mpctx, int mode, bool each_frame,
-                        bool osd)
+static struct mp_image *screenshot_get(struct MPContext *mpctx, int mode)
 {
+    struct mp_image *image = NULL;
     if (mpctx->video_out && mpctx->video_out->config_ok) {
-        screenshot_ctx *ctx = mpctx->screenshot_ctx;
-
         if (mode == MODE_SUBTITLES && mpctx->osd->render_subs_in_filter)
             mode = 0;
 
-        if (each_frame) {
-            ctx->each_frame = !ctx->each_frame;
-            if (!ctx->each_frame)
-                return;
-        } else {
-            ctx->each_frame = false;
-        }
-
-        ctx->mode = mode;
-        ctx->osd = osd;
-
         struct voctrl_screenshot_args args =
                             { .full_window = (mode == MODE_FULL_WINDOW) };
 
@@ -328,14 +309,73 @@ void screenshot_request(struct MPContext *mpctx, int mode, bool each_frame,
         if (!args.out_image)
             vo_control(mpctx->video_out, VOCTRL_SCREENSHOT, &args);
 
-        if (args.out_image) {
-            if (args.has_osd)
-                mode = 0;
-            screenshot_save(mpctx, args.out_image, mode == MODE_SUBTITLES);
-        } else {
-            screenshot_msg(ctx, SMSG_ERR, "Taking screenshot failed.");
+        image = args.out_image;
+        if (image) {
+            if (mode == MODE_SUBTITLES && !args.has_osd)
+                add_subs(mpctx, image);
         }
     }
+    return image;
+}
+
+void screenshot_to_file(struct MPContext *mpctx, const char *filename, int mode,
+                        bool osd)
+{
+    screenshot_ctx *ctx = mpctx->screenshot_ctx;
+    struct image_writer_opts opts = *mpctx->opts.screenshot_image_opts;
+    bool old_osd = ctx->osd;
+    ctx->osd = osd;
+
+    if (mp_path_exists(filename)) {
+        screenshot_msg(ctx, SMSG_ERR, "Screenshot: file '%s' already exists.",
+                       filename);
+        goto end;
+    }
+    char *ext = mp_splitext(filename, NULL);
+    if (ext)
+        opts.format = ext + 1; // omit '.'
+    struct mp_image *image = screenshot_get(mpctx, mode);
+    if (!image) {
+        screenshot_msg(ctx, SMSG_ERR, "Taking screenshot failed.");
+        goto end;
+    }
+    screenshot_msg(ctx, SMSG_OK, "Screenshot: '%s'", filename);
+    if (!write_image(image, &opts, filename))
+        screenshot_msg(ctx, SMSG_ERR, "Error writing screenshot!");
+    talloc_free(image);
+
+end:
+    ctx->osd = old_osd;
+}
+
+void screenshot_request(struct MPContext *mpctx, int mode, bool each_frame,
+                        bool osd)
+{
+    screenshot_ctx *ctx = mpctx->screenshot_ctx;
+
+    if (mode == MODE_SUBTITLES && mpctx->osd->render_subs_in_filter)
+        mode = 0;
+
+    if (each_frame) {
+        ctx->each_frame = !ctx->each_frame;
+        if (!ctx->each_frame)
+            return;
+    } else {
+        ctx->each_frame = false;
+    }
+
+    ctx->mode = mode;
+    ctx->osd = osd;
+
+    struct mp_image *image = screenshot_get(mpctx, mode);
+
+    if (image) {
+        screenshot_save(mpctx, image);
+    } else {
+        screenshot_msg(ctx, SMSG_ERR, "Taking screenshot failed.");
+    }
+
+    talloc_free(image);
 }
 
 void screenshot_flip(struct MPContext *mpctx)
-- 
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