avcodec: add QOI decoder and demuxer and parser and encoder and muxer

1 files changed, 35 insertions, 0 deletions

diff --git a/libavcodec/qoi.h b/libavcodec/qoi.h
new file mode 100644
index 0000000000..3efab1e55b
--- /dev/null
+++ b/libavcodec/qoi.h
@@ -0,0 +1,35 @@
+/*
+ * QOI image format
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_QOI_H
+#define AVCODEC_QOI_H
+
+#define QOI_OP_INDEX  0x00 /* 00xxxxxx */
+#define QOI_OP_DIFF   0x40 /* 01xxxxxx */
+#define QOI_OP_LUMA   0x80 /* 10xxxxxx */
+#define QOI_OP_RUN    0xc0 /* 11xxxxxx */
+#define QOI_OP_RGB    0xfe /* 11111110 */
+#define QOI_OP_RGBA   0xff /* 11111111 */
+
+#define QOI_MASK_2    0xc0 /* 11000000 */
+
+#define QOI_COLOR_HASH(px) (px[0]*3 + px[1]*5 + px[2]*7 + px[3]*11)
+
+#endif /* AVCODEC_QOI_H */