nvenc: drop the hard dependency on CUDA

[ffmpeg] / libavcodec / rle.h

diff --git a/libavcodec/rle.h b/libavcodec/rle.h
index 14d07084f62573c24629ae741cb07738488d33aa..c9677647cb5d6a8f4e11ac3fb5bb2f2e22d0634b 100644 (file)
--- a/libavcodec/rle.h
+++ b/libavcodec/rle.h
@@ -1,34 +1,45 @@
 /*
  * RLE encoder
  *
- * 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 FFMPEG_RLE_H
-#define FFMPEG_RLE_H
+#ifndef AVCODEC_RLE_H
+#define AVCODEC_RLE_H
 
 #include <stdint.h>
 
+/**
+ * Count up to 127 consecutive pixels which are either all the same or
+ * all differ from the previous and next pixels.
+ * @param start Pointer to the first pixel
+ * @param len Maximum number of pixels
+ * @param bpp Bytes per pixel
+ * @param same 1 if searching for identical pixel values, 0 for differing
+ * @return Number of matching consecutive pixels found
+ */
+int ff_rle_count_pixels(const uint8_t *start, int len, int bpp, int same);
+
 /**
  * RLE compress the row, with maximum size of out_size. Value before repeated bytes is (count ^ xor_rep) + add_rep.
  *                                                      Value before raw bytes is      (count ^ xor_raw) + add_raw.
  * @param outbuf Output buffer
  * @param out_size Maximum output size
- * @param ptr Input buffer
+ * @param inbuf Input buffer
  * @param bpp Bytes per pixel
  * @param w Image width
  * @return Size of output in bytes, or -1 if larger than out_size
@@ -36,4 +47,4 @@
 int ff_rle_encode(uint8_t *outbuf, int out_size, const uint8_t *inbuf, int bpp, int w,
                   int add_rep, int xor_rep, int add_raw, int xor_raw);
 
-#endif /* FFMPEG_RLE_H */
+#endif /* AVCODEC_RLE_H */