arm: Use .data.rel.ro for const data with relocations

[ffmpeg] / libavutil / lzo.h

diff --git a/libavutil/lzo.h b/libavutil/lzo.h
index 5431c1b5cf7c7d62a33c1f2e0fa238f352943a3d..9d7e8f1dc10a6d57a63e038bebd133b3069ea18b 100644 (file)
--- a/libavutil/lzo.h
+++ b/libavutil/lzo.h
@@ -2,43 +2,57 @@
  * LZO 1x decompression
  * copyright (c) 2006 Reimar Doeffinger
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVUTIL_LZO_H
 #define AVUTIL_LZO_H
 
+/**
+ * @defgroup lavu_lzo LZO
+ * @ingroup lavu_crypto
+ *
+ * @{
+ */
+
 #include <stdint.h>
 
-#define AV_LZO_INPUT_DEPLETED 1
-#define AV_LZO_OUTPUT_FULL 2
+/** @name Error flags returned by av_lzo1x_decode
+ * @{ */
+/// end of the input buffer reached before decoding finished
+#define AV_LZO_INPUT_DEPLETED  1
+/// decoded data did not fit into output buffer
+#define AV_LZO_OUTPUT_FULL     2
+/// a reference to previously decoded data was wrong
 #define AV_LZO_INVALID_BACKPTR 4
-#define AV_LZO_ERROR 8
+/// a non-specific error in the compressed bitstream
+#define AV_LZO_ERROR           8
+/** @} */
 
-#define AV_LZO_INPUT_PADDING 8
+#define AV_LZO_INPUT_PADDING   8
 #define AV_LZO_OUTPUT_PADDING 12
 
 /**
- * \brief Decodes LZO 1x compressed data.
- * \param out output buffer
- * \param outlen size of output buffer, number of bytes left are returned here
- * \param in input buffer
- * \param inlen size of input buffer, number of bytes left are returned here
- * \return 0 on success, otherwise error flags, see lzo.h
+ * @brief Decodes LZO 1x compressed data.
+ * @param out output buffer
+ * @param outlen size of output buffer, number of bytes left are returned here
+ * @param in input buffer
+ * @param inlen size of input buffer, number of bytes left are returned here
+ * @return 0 on success, otherwise a combination of the error flags above
  *
  * Make sure all buffers are appropriately padded, in must provide
  * AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes.
@@ -46,14 +60,7 @@
 int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen);
 
 /**
- * \brief deliberately overlapping memcpy implementation
- * \param dst destination buffer; must be padded with 12 additional bytes
- * \param back how many bytes back we start (the initial size of the overlapping window)
- * \param cnt number of bytes to copy, must be >= 0
- *
- * cnt > back is valid, this will copy the bytes we just copied,
- * thus creating a repeating pattern with a period length of back.
+ * @}
  */
-void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
 
 #endif /* AVUTIL_LZO_H */