Add back previously removed non-existing function params in doxygen comments.

Originally committed as revision 24131 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/escape124.c

@@ -200,6 +200,8 @@ static const uint16_t mask_matrix[] = {0x1,   0x2,   0x10,   0x20,
  * @param avctx decoder context
  * @param data decoded frame
  * @param data_size size of the decoded frame
+ * @param buf input buffer
+ * @param buf_size input buffer size
  * @return 0 success, -1 on error
  */
 static int escape124_decode_frame(AVCodecContext *avctx,

libavcodec/fraps.c

@@ -123,6 +123,8 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
  * @param avctx codec context
  * @param data output AVFrame
  * @param data_size size of output data or 0 if no picture is returned
+ * @param buf input data frame
+ * @param buf_size size of input data frame
  * @return number of consumed bytes on success or negative if decode fails
  */
 static int decode_frame(AVCodecContext *avctx,

libavcodec/rl2.c

@@ -174,6 +174,8 @@ static av_cold int rl2_decode_init(AVCodecContext *avctx)
  * @param avctx decoder context
  * @param data decoded frame
  * @param data_size size of the decoded frame
+ * @param buf input buffer
+ * @param buf_size input buffer size
  * @return 0 success, -1 on error
  */
 static int rl2_decode_frame(AVCodecContext *avctx,