Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavcodec / simple_idct.h

diff --git a/libavcodec/simple_idct.h b/libavcodec/simple_idct.h
index 10ac7da5e696513622be36d582d6159ae954e354..64d3c2ac31639bb2ce7669face3b957ba7ad507a 100644 (file)
--- a/libavcodec/simple_idct.h
+++ b/libavcodec/simple_idct.h
@@ -38,6 +38,12 @@ void ff_simple_idct_8(DCTELEM *block);
 void ff_simple_idct_put_10(uint8_t *dest, int line_size, DCTELEM *block);
 void ff_simple_idct_add_10(uint8_t *dest, int line_size, DCTELEM *block);
 void ff_simple_idct_10(DCTELEM *block);
+/**
+ * Special version of ff_simple_idct_10() which does dequantization
+ * and scales by a factor of 2 more between the two IDCTs to account
+ * for larger scale of input coefficients.
+ */
+void ff_prores_idct(DCTELEM *block, const int16_t *qmat);
 
 void ff_simple_idct_mmx(int16_t *block);
 void ff_simple_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block);