screenshot: move image writer code into new file image_writer.c

1 files changed, 45 insertions, 0 deletions

diff --git a/image_writer.h b/image_writer.h
new file mode 100644
index 0000000000..1253bb5d8b
--- /dev/null
+++ b/image_writer.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of mplayer.
+ *
+ * mplayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mplayer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with mplayer.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+struct mp_image;
+struct mp_csp_details;
+
+struct image_writer_opts {
+    char *filetype;
+    int png_compression;
+    int jpeg_quality;
+};
+
+extern const struct image_writer_opts image_writer_opts_defaults;
+
+extern const struct m_sub_options image_writer_conf;
+
+// Return the file extension that will be used, e.g. "png".
+const char *image_writer_file_ext(const struct image_writer_opts *opts);
+
+/*
+ * Save the given image under the given filename. The parameters csp and opts
+ * are optional. All pixel formats supported by swscale are supported.
+ *
+ * File format and compression settings are controlled via the opts parameter.
+ *
+ * NOTE: The fields w/h/width/height of the passed mp_image must be all set
+ *       accordingly. Setting w and width or h and height to different values
+ *       can be used to store snapshots of anamorphic video.
+ */
+int write_image(struct mp_image *image, const struct mp_csp_details *csp,
+                const struct image_writer_opts *opts, const char *filename);