Merge remote-tracking branch 'qatar/master'

* qatar/master:
  id3v2: fix doxy comment - 'machine byte order' makes no sense on char arrays
  VC1: restore mistakenly removed code
  twinvq: check output buffer size before decoding
  twinvq: return an error when the packet size is too small
  lavf: export some forgotten symbols with non-av prefixes.
  swscale: update altivec yuv2planeX asm to new per-plane API.
  swscale: make yuv2yuvX_10_sse2/avx 8/9/16-bits aware.
  yuv2planeX10 SIMD
  swscale: decide whether to use yuv2plane1/X on a per-plane basis.
  swscale: reintroduce full precision in 16-bit output.
  Split up yuv2yuvX functions
  Split out yuv2yuv1 luma and chroma in order to make them generic DSP functions
  lavc: replace references to deprecated AVCodecContext.error_recognition to use AVCodecContext.err_recognition
  lavc: translate non-flag-based er options into flag-based ef options at codec open
  add -err_filter AVOptions to access flag-based error recognition
  h264_weight: initialize "height" function argument properly.
  presets: spelling error in libvpx 1080p50_60
  avplay: fix fullscreen behaviour with SDL 1.2.14 on Mac OS X

Conflicts:
	ffplay.c
	libavformat/libavformat.v
	libswscale/swscale.c
	libswscale/x86/swscale_template.c
	tests/ref/lavfi/pixfmts_scale

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

1 files changed, 37 insertions, 34 deletions

diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index c8e8685f72..2e7f0cbc4a 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -61,56 +61,58 @@ typedef int (*SwsFunc)(struct SwsContext *context, const uint8_t* src[],
                        int srcStride[], int srcSliceY, int srcSliceH,
                        uint8_t* dst[], int dstStride[]);
 
+
 /**
- * Write one line of horizontally scaled Y/U/V/A to planar output
+ * Write one line of horizontally scaled data to planar output
  * without any additional vertical scaling (or point-scaling).
  *
- * @param c       SWS scaling context
- * @param lumSrc  scaled luma (Y) source data, 15bit for 8-10bit output,
- *                19-bit for 16bit output (in int32_t)
- * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
- *                19-bit for 16bit output (in int32_t)
- * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
+ * @param src     scaled source data, 15bit for 8-10bit output,
  *                19-bit for 16bit output (in int32_t)
- * @param alpSrc  scaled alpha (A) source data, 15bit for 8-10bit output,
- *                19-bit for 16bit output (in int32_t)
- * @param dest    pointer to the 4 output planes (Y/U/V/A). For >8bit
+ * @param dest    pointer to the output plane. For >8bit
  *                output, this is in uint16_t
- * @param dstW    width of dest[0], dest[3], lumSrc and alpSrc in pixels
- * @param chrDstW width of dest[1], dest[2], chrUSrc and chrVSrc
+ * @param dstW    width of destination in pixels
+ * @param dither  ordered dither array of type int16_t and size 8
+ * @param offset  Dither offset
  */
-typedef void (*yuv2planar1_fn) (struct SwsContext *c,
-                                const int16_t *lumSrc, const int16_t *chrUSrc,
-                                const int16_t *chrVSrc, const int16_t *alpSrc,
-                                uint8_t *dest[4], int dstW, int chrDstW);
+typedef void (*yuv2planar1_fn) (const int16_t *src, uint8_t *dest, int dstW,
+                                const uint8_t *dither, int offset);
+
 /**
- * Write one line of horizontally scaled Y/U/V/A to planar output
+ * Write one line of horizontally scaled data to planar output
  * with multi-point vertical scaling between input pixels.
  *
- * @param c             SWS scaling context
- * @param lumFilter     vertical luma/alpha scaling coefficients, 12bit [0,4096]
- * @param lumSrc        scaled luma (Y) source data, 15bit for 8-10bit output,
+ * @param filter        vertical luma/alpha scaling coefficients, 12bit [0,4096]
+ * @param src           scaled luma (Y) or alpha (A) source data, 15bit for 8-10bit output,
  *                      19-bit for 16bit output (in int32_t)
- * @param lumFilterSize number of vertical luma/alpha input lines to scale
+ * @param filterSize    number of vertical input lines to scale
+ * @param dest          pointer to output plane. For >8bit
+ *                      output, this is in uint16_t
+ * @param dstW          width of destination pixels
+ * @param offset        Dither offset
+ */
+typedef void (*yuv2planarX_fn) (const int16_t *filter, int filterSize,
+                                const int16_t **src, uint8_t *dest, int dstW,
+                                const uint8_t *dither, int offset);
+
+/**
+ * Write one line of horizontally scaled chroma to interleaved output
+ * with multi-point vertical scaling between input pixels.
+ *
+ * @param c             SWS scaling context
  * @param chrFilter     vertical chroma scaling coefficients, 12bit [0,4096]
  * @param chrUSrc       scaled chroma (U) source data, 15bit for 8-10bit output,
  *                      19-bit for 16bit output (in int32_t)
  * @param chrVSrc       scaled chroma (V) source data, 15bit for 8-10bit output,
  *                      19-bit for 16bit output (in int32_t)
  * @param chrFilterSize number of vertical chroma input lines to scale
- * @param alpSrc        scaled alpha (A) source data, 15bit for 8-10bit output,
- *                      19-bit for 16bit output (in int32_t)
- * @param dest          pointer to the 4 output planes (Y/U/V/A). For >8bit
+ * @param dest          pointer to the output plane. For >8bit
  *                      output, this is in uint16_t
- * @param dstW          width of dest[0], dest[3], lumSrc and alpSrc in pixels
- * @param chrDstW       width of dest[1], dest[2], chrUSrc and chrVSrc
+ * @param dstW          width of chroma planes
  */
-typedef void (*yuv2planarX_fn) (struct SwsContext *c, const int16_t *lumFilter,
-                                const int16_t **lumSrc, int lumFilterSize,
-                                const int16_t *chrFilter, const int16_t **chrUSrc,
-                                const int16_t **chrVSrc,  int chrFilterSize,
-                                const int16_t **alpSrc, uint8_t *dest[4],
-                                int dstW, int chrDstW);
+typedef void (*yuv2interleavedX_fn) (struct SwsContext *c, const int16_t *chrFilter, int chrFilterSize,
+                                     const int16_t **chrUSrc, const int16_t **chrVSrc,
+                                     uint8_t *dest, int dstW);
+
 /**
  * Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB
  * output without any additional vertical scaling (or point-scaling). Note
@@ -412,8 +414,9 @@ typedef struct SwsContext {
 #endif
 
     /* function pointers for swScale() */
-    yuv2planar1_fn yuv2yuv1;
-    yuv2planarX_fn yuv2yuvX;
+    yuv2planar1_fn yuv2plane1;
+    yuv2planarX_fn yuv2planeX;
+    yuv2interleavedX_fn yuv2nv12cX;
     yuv2packed1_fn yuv2packed1;
     yuv2packed2_fn yuv2packed2;
     yuv2packedX_fn yuv2packedX;