Simplify l1mv/l1ref calculation.

[ffmpeg] / libavcodec / s3tc.h

diff --git a/libavcodec/s3tc.h b/libavcodec/s3tc.h
index ed385ae79ef6b8cc6c405edc17f2391d9e7b8779..9ead901b6e3b6d314dde04cd40dc976f02d41e9e 100644 (file)
--- a/libavcodec/s3tc.h
+++ b/libavcodec/s3tc.h
@@ -17,20 +17,37 @@
  * 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 FF_S3TC_H
-#define FF_S3TC_H
+#ifndef FFMPEG_S3TC_H
+#define FFMPEG_S3TC_H
+
+#include <stdint.h>
 
 #define FF_S3TC_DXT1    0x31545844
 #define FF_S3TC_DXT3    0x33545844
 
+/**
+ * Decode DXT1 encoded data to RGB32
+ * @param *src source buffer, has to be aligned on a 4-byte boundary
+ * @param *dst destination buffer
+ * @param w width of output image
+ * @param h height of output image
+ * @param stride line size of output image
+ */
 void ff_decode_dxt1(const uint8_t *src, uint8_t *dst,
                     const unsigned int w, const unsigned int h,
                     const unsigned int stride);
+/**
+ * Decode DXT3 encoded data to RGB32
+ * @param *src source buffer, has to be aligned on a 4-byte boundary
+ * @param *dst destination buffer
+ * @param w width of output image
+ * @param h height of output image
+ * @param stride line size of output image
+ */
 void ff_decode_dxt3(const uint8_t *src, uint8_t *dst,
                     const unsigned int w, const unsigned int h,
                     const unsigned int stride);
 
-#endif
+#endif /* FFMPEG_S3TC_H */