Merge commit '1df0b061621b10edde87e3ab7ea83aed381c574f'

* commit '1df0b061621b10edde87e3ab7ea83aed381c574f':
  nuv: Reuse the DSPContext from RTJpegContext

Conflicts:
	libavcodec/nuv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 18 insertions, 11 deletions

diff --git a/libavcodec/rtjpeg.c b/libavcodec/rtjpeg.c
index 860d95821d..e67ba7565d 100644
--- a/libavcodec/rtjpeg.c
+++ b/libavcodec/rtjpeg.c
@@ -121,7 +121,7 @@ int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
     if (res < 0) \
         return res; \
     if (res > 0) \
-        c->dsp->idct_put(dst, stride, block); \
+        c->dsp.idct_put(dst, stride, block); \
 } while (0)
             int16_t *block = c->block;
             BLOCK(c->lquant, y1, f->linesize[0]);
@@ -148,7 +148,6 @@ int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
 /**
  * @brief initialize an RTJpegContext, may be called multiple times
  * @param c context to initialize
- * @param dsp specifies the idct to use for decoding
  * @param width width of image, will be rounded down to the nearest multiple
  *              of 16 for decoding
  * @param height height of image, will be rounded down to the nearest multiple
@@ -156,21 +155,29 @@ int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
  * @param lquant luma quantization table to use
  * @param cquant chroma quantization table to use
  */
-void ff_rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp,
-                           int width, int height,
+void ff_rtjpeg_decode_init(RTJpegContext *c, int width, int height,
                            const uint32_t *lquant, const uint32_t *cquant) {
     int i;
-    c->dsp = dsp;
     for (i = 0; i < 64; i++) {
-        int z = ff_zigzag_direct[i];
-        int p = c->dsp->idct_permutation[i];
-        z = ((z << 3) | (z >> 3)) & 63; // rtjpeg uses a transposed variant
-
-        // permute the scan and quantization tables for the chosen idct
-        c->scan[i] = c->dsp->idct_permutation[z];
+        int p = c->dsp.idct_permutation[i];
         c->lquant[p] = lquant[i];
         c->cquant[p] = cquant[i];
     }
     c->w = width;
     c->h = height;
 }
+
+void ff_rtjpeg_init(RTJpegContext *c, AVCodecContext *avctx)
+{
+    int i;
+
+    ff_dsputil_init(&c->dsp, avctx);
+
+    for (i = 0; i < 64; i++) {
+        int z = ff_zigzag_direct[i];
+        z = ((z << 3) | (z >> 3)) & 63; // rtjpeg uses a transposed variant
+
+        // permute the scan and quantization tables for the chosen idct
+        c->scan[i] = c->dsp.idct_permutation[z];
+    }
+}