Add new buffer format implementations

src/main/java/uk/co/caprica/vlcj/player/embedded/videosurface/callback/BufferFormat.java

@@ -77,6 +77,18 @@ public BufferFormat(String chroma, int width, int height, int[] pitches, int[] l
         this.lines = Arrays.copyOf(lines, lines.length);
     }
 
+    /**
+     * Constructs a new BufferFormat instance with the given parameters.
+     *
+     * @param chroma a VLC buffer type, must be exactly 4 characters and cannot contain non-ASCII characters
+     * @param width the width, must be > 0
+     * @param height the height, must be > 0
+     * @param channels number of channels
+     */
+    public BufferFormat(String chroma, int width, int height, int channels) {
+        this(chroma, width, height, new int[] {width * channels}, new int[] {height});
+    }
+
     /**
      * Get the pixel format.
      *

src/main/java/uk/co/caprica/vlcj/player/embedded/videosurface/callback/format/RV32BufferFormat.java

@@ -26,6 +26,7 @@
  * <p>
  * RV32 is a 24-bit BGR format with 8-bit of padding (no alpha) in a single plane.
  */
+@Deprecated
 public class RV32BufferFormat extends BufferFormat {
 
     /**
@@ -35,7 +36,6 @@ public class RV32BufferFormat extends BufferFormat {
      * @param height height of the buffer
      */
     public RV32BufferFormat(int width, int height) {
-        super("RV32", width, height, new int[] {width * 4}, new int[] {height});
+        super("RV32", width, height, 4);
     }
-
 }

src/main/java/uk/co/caprica/vlcj/player/embedded/videosurface/callback/format/StandardAlphaBufferFormat.java

@@ -0,0 +1,40 @@
+/*
+ * This file is part of VLCJ.
+ *
+ * VLCJ 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * VLCJ 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 VLCJ.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2009-2024 Caprica Software Limited.
+ */
+
+package uk.co.caprica.vlcj.player.embedded.videosurface.callback.format;
+
+import uk.co.caprica.vlcj.player.embedded.videosurface.callback.BufferFormat;
+
+/**
+ * Implementation of a buffer format for RV32.
+ * <p>
+ * BGRA is used, a 32-bit BGR format with alpha in a single plane.
+ */
+public class StandardAlphaBufferFormat extends BufferFormat {
+
+    /**
+     * Creates a RV32 buffer format with the given width and height.
+     *
+     * @param width width of the buffer
+     * @param height height of the buffer
+     */
+    public StandardAlphaBufferFormat(int width, int height) {
+        super("BGRA", width, height, 4);
+    }
+}

src/main/java/uk/co/caprica/vlcj/player/embedded/videosurface/callback/format/StandardOpaqueBufferFormat.java

@@ -0,0 +1,40 @@
+/*
+ * This file is part of VLCJ.
+ *
+ * VLCJ 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * VLCJ 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 VLCJ.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2009-2024 Caprica Software Limited.
+ */
+
+package uk.co.caprica.vlcj.player.embedded.videosurface.callback.format;
+
+import uk.co.caprica.vlcj.player.embedded.videosurface.callback.BufferFormat;
+
+/**
+ * Implementation of a standard opaque buffer format.
+ * <p>
+ * RV24 is used, a 24-bit RGB format in a single plane.
+ */
+public class StandardOpaqueBufferFormat extends BufferFormat {
+
+    /**
+     * Creates a RV32 buffer format with the given width and height.
+     *
+     * @param width width of the buffer
+     * @param height height of the buffer
+     */
+    public StandardOpaqueBufferFormat(int width, int height) {
+        super("RV24", width, height, 3);
+    }
+}